Update README.md

Trex3 needs more adjustment for options such as filament sensor and laser, but should be largely functional

.circleci/config.yml

@@ -0,0 +1,274 @@
+# Python CircleCI 2.0 configuration file
+#
+# Check https://circleci.com/docs/2.0/language-python/ for more details
+#
+version: 2
+jobs:
+  build:
+    docker:
+      # specify the version you desire here
+      # use `-browsers` prefix for selenium tests, e.g. `3.6.1-browsers`
+      - image: circleci/python:2.7.13
+
+      # Specify service dependencies here if necessary
+      # CircleCI maintains a library of pre-built images
+      # documented at https://circleci.com/docs/2.0/circleci-images/
+      # - image: circleci/postgres:9.4
+    environment:
+      TEST_PLATFORM: "-e megaatmega2560"
+
+    working_directory: ~/Marlin
+
+    steps:
+      - checkout
+
+      - restore_cache:
+          paths:
+          - ~/.platformio
+          - ~/Marlin/.piolibdeps
+          keys:
+          - v1-dependencies-{{ checksum "~/Marlin/platformio.ini" }}
+          # fallback to using the latest cache if no exact match is found
+          - v1-dependencies-
+
+      - run:
+          name: install dependencies
+          command: |
+            sudo pip install -U platformio
+
+      # run tests!
+      - run:
+          name: run tests
+          command: |
+            #
+            #
+            # Fetch the tag information for the current branch
+            ls -la
+            git fetch origin --tags
+            #
+            # Publish the buildroot script folder
+            chmod +x buildroot/bin/*
+            export PATH=`pwd`/buildroot/bin/:${PATH}
+
+            # Generate custom version include
+            generate_version ./Marlin/
+            cat ./Marlin/Version.h
+            #
+            # Back up pins_RAMPS.h
+            #
+            backup_ramps
+
+            env_backup
+
+            #################################
+            # Build all sample configurations
+            #################################
+
+            echo testing megaatmega2560 targets...
+            export TEST_PLATFORM="-e megaatmega2560"
+            echo use_example_configs adafruit/ST7565
+            use_example_configs adafruit/ST7565
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs BQ/Hephestos
+            use_example_configs BQ/Hephestos
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs BQ/Hephestos_2
+            use_example_configs BQ/Hephestos_2
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs BQ/WITBOX
+            use_example_configs BQ/WITBOX
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs AliExpress/CL-260
+            use_example_configs AliExpress/CL-260
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            #echo use_example_configs Cartesio
+            #use_example_configs Cartesio
+            #build_marlin_pio ./ ${TEST_PLATFORM}
+            #restore_configs
+            echo use_example_configs delta/FLSUN/auto_calibrate
+            use_example_configs delta/FLSUN/auto_calibrate
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs delta/FLSUN/kossel_mini
+            use_example_configs delta/FLSUN/kossel_mini
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs delta/generic
+            use_example_configs delta/generic
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs delta/kossel_mini
+            use_example_configs delta/kossel_mini
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs delta/kossel_xl
+            use_example_configs delta/kossel_xl
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs Felix
+            use_example_configs Felix
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs Felix/DUAL
+            use_example_configs Felix/DUAL
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs FolgerTech/i3-2020
+            use_example_configs FolgerTech/i3-2020
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs gCreate/gMax1.5+
+            use_example_configs gCreate/gMax1.5+
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs Geeetech/GT2560
+            use_example_configs Geeetech/GT2560
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            #echo use_example_configs Geeetech/I3_Pro_X-GT2560
+            #use_example_configs Geeetech/I3_Pro_X-GT2560
+            #build_marlin_pio ./ ${TEST_PLATFORM}
+            #restore_configs
+            echo use_example_configs Infitary/i3-M508
+            use_example_configs Infitary/i3-M508
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            use_example_configs Malyan/M200
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs Micromake/C1/basic
+            use_example_configs Micromake/C1/basic
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs Micromake/C1/enhanced
+            use_example_configs Micromake/C1/enhanced
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs RepRapWorld/Megatronics
+            use_example_configs RepRapWorld/Megatronics
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs RigidBot
+            use_example_configs RigidBot
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs SCARA
+            use_example_configs SCARA
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs Velleman/K8200
+            use_example_configs Velleman/K8200
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs Velleman/K8400/Dual-head
+            use_example_configs Velleman/K8400/Dual-head
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs Velleman/K8400
+            use_example_configs Velleman/K8400
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs Wanhao/Duplicator6
+            use_example_configs Wanhao/Duplicator6
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            # Requires manual load of https://github.com/stawel/SlowSoftI2CMaster
+            #use_example_configs wt150
+            #build_marlin_pio ./ ${TEST_PLATFORM}
+            #restore_configs
+            echo testing melzi targets...
+            export TEST_PLATFORM="-e melzi"
+            echo use_example_configs Anet/A6
+            use_example_configs Anet/A6
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs Anet/A8
+            use_example_configs Anet/A8
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs Creality/CR-10
+            use_example_configs Creality/CR-10
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs Malyan/M150
+            use_example_configs Malyan/M150
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs Sanguinololu
+            use_example_configs Sanguinololu
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs TinyBoy2
+            use_example_configs TinyBoy2
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+
+            echo testing rambo targets...
+            export TEST_PLATFORM="-e rambo"
+            echo use_example_configs AlephObjects/TAZ4
+            use_example_configs AlephObjects/TAZ4
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+
+            echo testing at90usb1286_* targets...
+            export TEST_PLATFORM="-e at90usb1286_dfu"
+            #echo se_example_configs delta/kossel_pro
+            #use_example_configs delta/kossel_pro
+            #build_marlin_pio ./ ${TEST_PLATFORM}
+            #restore_configs
+            echo use_example_configs makibox
+            use_example_configs makibox
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+
+            echo testing sanguino_atmega644p targets...
+            export TEST_PLATFORM="-e sanguino_atmega644p"
+            echo use_example_configs tvrrug/Round2
+            use_example_configs tvrrug/Round2
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+
+            echo testing LPC1768 targets...
+            export TEST_PLATFORM="-e LPC1768"
+            echo use_example_configs Mks/Sbase
+            use_example_configs Mks/Sbase
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo testing STM32F1 targets...
+            export TEST_PLATFORM="-e STM32F103RE"
+            restore_configs
+            echo use_example_configs STM32/STM32F103RE
+            use_example_configs STM32/STM32F103RE
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+            echo use_example_configs STM32/stm32f103ret6
+            use_example_configs STM32/stm32f103ret6
+            build_marlin_pio ./ ${TEST_PLATFORM}
+            restore_configs
+
+            echo testing DUE targets...
+            export TEST_PLATFORM="-e DUE"
+            #echo use_example_configs UltiMachine/Archim2
+            #use_example_configs UltiMachine/Archim2
+            #build_marlin_pio ./ ${TEST_PLATFORM}
+            #restore_configs
+
+            #
+            # Remove temp files from dependencies tree prior to caching
+            rm -rf ~/Marlin/.piolibdeps/_tmp_*
+
+            #
+            # Restore the environment
+            #
+            env_restore
+
+      - save_cache:
+          paths:
+          - ~/.platformio
+          - ~/Marlin/.piolibdeps
+          key: v1-dependencies-{{ checksum "~/Marlin/platformio.ini" }}

.editorconfig

@@ -1,19 +0,0 @@
-# editorconfig.org
-root = true
-
-[{*.patch,syntax_test_*}]
-trim_trailing_whitespace = false
-
-[{*.c,*.cpp,*.h}]
-charset = utf-8
-
-[{*.c,*.cpp,*.h,Makefile}]
-trim_trailing_whitespace = true
-insert_final_newline = true
-end_of_line = lf
-indent_style = space
-indent_size = 2
-
-[{*.py,*.conf,*.sublime-project}]
-indent_style = tab
-indent_size = 4

.gitattributes

@@ -17,5 +17,3 @@
 *.png binary
 *.jpg binary
 *.fon binary
-*.bin binary
-*.woff binary

.github/FUNDING.yml

@@ -1,3 +1 @@
-github: [thinkyhead]
-patreon: thinkyhead
-custom: ["https://www.thinkyhead.com/donate-to-marlin"]
+custom: http://www.thinkyhead.com/donate-to-marlin

.github/contributing.md

@@ -34,15 +34,16 @@ This project and everyone participating in it is governed by the [Marlin Code of
 
 We have a Message Board and a Facebook group where our knowledgable user community can provide helpful advice if you have questions.
 
-* [Marlin RepRap forum](https://reprap.org/forum/list.php?415)
+* [Marlin RepRap forum](http://forums.reprap.org/list.php?415)
 * [MarlinFirmware on Facebook](https://www.facebook.com/groups/1049718498464482/)
 
-If chat is more your speed, you can join the MarlinFirmware Discord server:
+If chat is more your speed, you can join the MarlinFirmware Slack team:
 
-* Use the link https://discord.gg/n5NJ59y to join up as a General User.
-* Even though our Discord is pretty active, it may take a while for community members to respond — please be patient!
-* Use the `#general` channel for general questions or discussion about Marlin.
-* Other channels exist for certain topics or are limited to Patrons. Check the channel list.
+* Join the Marlin Slack Team
+  * To obtain group access, please [send a request](http://www.thinkyhead.com/contact/9) to @thinkyhead.
+  * Even though Slack is a chat service, sometimes it takes several hours for community members to respond — please be patient!
+  * Use the `#general` channel for general questions or discussion about Marlin.
+  * Other channels exist for certain topics. Check the channel list.
 
 ## How Can I Contribute?
 
@@ -92,7 +93,7 @@ Before creating a suggestion, please check [this list](#before-submitting-a-sugg
 
 #### Before Submitting a Feature Request
 
-* **Check the [Marlin website](https://marlinfw.org/)** for tips — you might discover that the feature is already included. Most importantly, check if you're using [the latest version of Marlin](https://github.com/MarlinFirmware/Marlin/releases) and if you can get the desired behavior by changing [Marlin's config settings](https://marlinfw.org/docs/configuration/configuration.html).
+* **Check the [Marlin website](http://marlinfw.org/)** for tips — you might discover that the feature is already included. Most importantly, check if you're using [the latest version of Marlin](https://github.com/MarlinFirmware/Marlin/releases) and if you can get the desired behavior by changing [Marlin's config settings](http://marlinfw.org/docs/configuration/configuration.html).
 * **Perform a [cursory search](https://github.com/MarlinFirmware/Marlin/issues?q=is%3Aissue)** to see if the enhancement has already been suggested. If it has, add a comment to the existing issue instead of opening a new one.
 
 #### How Do I Submit A (Good) Feature Request?
@@ -116,12 +117,12 @@ Unsure where to begin contributing to Marlin? You can start by looking through t
 
 ### Pull Requests
 
-Pull Requests should always be targeted to working branches (e.g., `bugfix-1.1.x` and/or `bugfix-2.0.x`) and never to release branches (e.g., `1.1.x`). If this is your first Pull Request, please read our [Guide to Pull Requests](https://marlinfw.org/docs/development/getting_started_pull_requests.html) and Github's [Pull Request](https://help.github.com/articles/creating-a-pull-request/) documentation.
+Pull Requests should always be targeted to working branches (e.g., `bugfix-1.1.x` and/or `bugfix-2.0.x`) and never to release branches (e.g., `1.1.x`). If this is your first Pull Request, please read our [Guide to Pull Requests](http://marlinfw.org/docs/development/getting_started_pull_requests.html) and Github's [Pull Request](https://help.github.com/articles/creating-a-pull-request/) documentation.
 
 * Fill in [the required template](pull_request_template.md).
 * Don't include issue numbers in the PR title.
 * Include pictures, diagrams, and links to videos in your Pull Request to demonstrate your changes, if needed.
-* Follow the [Coding Standards](https://marlinfw.org/docs/development/coding_standards.html) posted on our website.
+* Follow the [Coding Standards](http://marlinfw.org/docs/development/coding_standards.html) posted on our website.
 * Document new code with clear and concise comments.
 * End all files with a newline.
 
@@ -136,7 +137,7 @@ Pull Requests should always be targeted to working branches (e.g., `bugfix-1.1.x
 
 ### C++ Coding Standards
 
-* Please read and follow the [Coding Standards](https://marlinfw.org/docs/development/coding_standards.html) posted on our website. Failure to follow these guidelines will delay evaluation and acceptance of Pull Requests.
+* Please read and follow the [Coding Standards](http://marlinfw.org/docs/development/coding_standards.html) posted on our website. Failure to follow these guidelines will delay evaluation and acceptance of Pull Requests.
 
 ### Documentation
 

.github/issue_template.md

@@ -2,13 +2,9 @@
 
 Have you read Marlin's Code of Conduct? By filing an Issue, you are expected to comply with it, including treating everyone with respect: https://github.com/MarlinFirmware/Marlin/blob/bugfix-2.0.x/.github/code_of_conduct.md
 
-Do you want to ask a question? Are you looking for support? Please don't post here. Instead use one of the following options:
+Do you want to ask a question? Are you looking for support? Please don't post here. Instead please use the Marlin Firmware forum at http://forums.reprap.org/list.php?415 or the Marlin Facebook Group https://www.facebook.com/groups/1049718498464482/ or the Marlin Discord Server https://discord.gg/n5NJ59y.
 
-- The Marlin Firmware forum at https://reprap.org/forum/list.php?415
-- The MarlinFirmware Facebook Group at https://www.facebook.com/groups/1049718498464482/
-- The MarlinFirmware Discord Server at https://discord.gg/n5NJ59y.
-
-Before filing an issue be sure to test the latest "bugfix" branch to see whether the issue is already addressed.
+Before filing an issue be sure to test the 1.1 and/or 2.0 "bugfix" branches to see whether the issue is already addressed.
 
 -->
 

.github/lock.yml

@@ -1,40 +0,0 @@
-#
-# Configuration for Lock Threads - https://github.com/dessant/lock-threads-app
-#
-
-# Number of days of inactivity before a closed issue or pull request is locked
-daysUntilLock: 60
-
-# Skip issues and pull requests created before a given timestamp. Timestamp must
-# follow ISO 8601 (`YYYY-MM-DD`). Set to `false` to disable
-skipCreatedBefore: false
-
-# Issues and pull requests with these labels will be ignored. Set to `[]` to disable
-exemptLabels: [ 'no-locking' ]
-
-# Label to add before locking, such as `outdated`. Set to `false` to disable
-lockLabel: false
-
-# Comment to post before locking. Set to `false` to disable
-lockComment: >
-  This thread has been automatically locked since there has not been
-  any recent activity after it was closed. Please open a new issue for
-  related bugs.
-
-# Assign `resolved` as the reason for locking. Set to `false` to disable
-setLockReason: true
-
-# Limit to only `issues` or `pulls`
-# only: issues
-
-# Optionally, specify configuration settings just for `issues` or `pulls`
-# issues:
-#   exemptLabels:
-#     - help-wanted
-#   lockLabel: outdated
-
-# pulls:
-#   daysUntilLock: 30
-
-# Repository to extend settings from
-# _extends: repo

.github/pull_request_template.md

@@ -14,10 +14,6 @@ We must be able to understand your proposed change from this description. If we
 
 <!-- What does this fix or improve? -->
 
-### Configurations
-
-<!-- Attach any Configuration.h, Configuration_adv.h, or platformio.ini files needed to compile/test your Pull Request. -->
-
 ### Related Issues
 
 <!-- Whether this fixes a bug or fulfills a feature request, please list any related Issues here. -->

.github/workflows/test-builds.yml

@@ -1,121 +0,0 @@
-#
-# test-builds.yml
-# Do test builds to catch compile errors
-#
-
-name: CI
-
-on:
-  pull_request:
-    branches:
-    - bugfix-2.0.x
-    paths-ignore:
-    - config/**
-    - data/**
-    - docs/**
-    - '**/*.md'
-  push:
-    branches:
-    - bugfix-2.0.x
-    paths-ignore:
-    - config/**
-    - data/**
-    - docs/**
-    - '**/*.md'
-
-jobs:
-  test_builds:
-    name: Run All Tests
-    if: github.repository == 'MarlinFirmware/Marlin'
-
-    runs-on: ubuntu-latest
-
-    strategy:
-      matrix:
-        test-platform:
-        # Base Environments
-
-        - DUE
-        - DUE_archim
-        - esp32
-        - linux_native
-        - mega2560
-        - at90usb1286_dfu
-        - teensy31
-        - teensy35
-        - teensy41
-        - SAMD51_grandcentral_m4
-
-        # Extended AVR Environments
-
-        - FYSETC_F6
-        - mega1280
-        - rambo
-        - sanguino1284p
-        - sanguino644p
-
-        # STM32F1 (Maple) Environments
-
-        - STM32F103RC_btt
-        - STM32F103RC_btt_USB
-        - STM32F103RE_btt
-        - STM32F103RE_btt_USB
-        - STM32F103RC_fysetc
-        - STM32F103RC_meeb
-        - jgaurora_a5s_a1
-        - STM32F103VE_longer
-        - mks_robin
-        - mks_robin_lite
-        - mks_robin_pro
-        - STM32F103RET6_creality
-        - mks_robin_nano35
-
-        # STM32 (ST) Environments
-
-        - STM32F407VE_black
-        - STM32F401VE_STEVAL
-        - BIGTREE_BTT002
-        - BIGTREE_SKR_PRO
-        - BIGTREE_GTR_V1_0
-        - mks_robin_stm32
-        - ARMED
-        - FYSETC_S6
-        - STM32F070CB_malyan
-        - STM32F070RB_malyan
-        - malyan_M300
-        - FLYF407ZG
-        - rumba32
-        - LERDGEX
-        - mks_robin_nano35_stm32
-        - NUCLEO_F767ZI
-        - REMRAM_V1
-
-        # Put lengthy tests last
-
-        - LPC1768
-        - LPC1769
-
-        # Non-working environment tests
-        #- at90usb1286_cdc
-        #- STM32F103CB_malyan
-        #- mks_robin_mini
-
-    steps:
-
-    - name: Select Python 3.7
-      uses: actions/setup-python@v1
-      with:
-        python-version: '3.7' # Version range or exact version of a Python version to use, using semvers version range syntax.
-        architecture: 'x64' # optional x64 or x86. Defaults to x64 if not specified
-
-    - name: Install PlatformIO
-      run: |
-        pip install -U https://github.com/platformio/platformio-core/archive/develop.zip
-        platformio update
-
-    - name: Check out the PR
-      uses: actions/checkout@v2
-
-    - name: Run ${{ matrix.test-platform }} Tests
-      run: |
-        make tests-single-ci TEST_TARGET=${{ matrix.test-platform }}

.gitignore

@@ -1,6 +1,6 @@
 #
 # Marlin 3D Printer Firmware
-# Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+# Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 #
 # Based on Sprinter and grbl.
 # Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -16,12 +16,12 @@
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
-# Generated files
+# Our automatic versioning scheme generates the following file
+# NEVER put it in the repository
 _Version.h
-bdf2u8g
 
 #
 # OS
@@ -77,6 +77,7 @@ tags
 *.out
 *.app
 
+
 #
 # C
 #
@@ -145,10 +146,7 @@ Marlin/*/*/readme.txt
 Marlin/*/*/*/readme.txt
 Marlin/*/*/*/*/readme.txt
 
-# Secure Credentials
-Configuration_Secure.h
-
-# Visual Studio
+#Visual Studio
 *.sln
 *.vcxproj
 *.vcxproj.user
@@ -159,34 +157,27 @@ __vm/
 .vs/
 vc-fileutils.settings
 
-# Visual Studio Code
+#Visual Studio Code
 .vscode
 .vscode/.browse.c_cpp.db*
 .vscode/c_cpp_properties.json
 .vscode/launch.json
 .vscode/*.db
 
-# cmake
+#cmake
 CMakeLists.txt
 src/CMakeLists.txt
 CMakeListsPrivate.txt
 
-# CLion
+#CLion
 cmake-build-*
 
-# Eclipse
+#Eclipse
 .project
 .cproject
 .pydevproject
 .settings
 .classpath
 
-# Python
+#Python
 __pycache__
-
-# IOLogger logs
-*_log.csv
-
-# Simulation / Native
-eeprom.dat
-imgui.ini

.travis.yml

@@ -0,0 +1,84 @@
+dist: bionic
+sudo: false
+
+language: python
+python:
+  - "3.7"
+
+notifications:
+  email: false
+
+env:
+  # Base Environments
+  - TEST_PLATFORM="DUE"
+  - TEST_PLATFORM="esp32"
+  - TEST_PLATFORM="linux_native"
+  - TEST_PLATFORM="megaatmega2560"
+  - TEST_PLATFORM="STM32F103RE"
+  - TEST_PLATFORM="teensy31"
+  - TEST_PLATFORM="teensy35"
+
+  # Extended AVR Environments
+  - TEST_PLATFORM="fysetc_f6_13"
+  - TEST_PLATFORM="megaatmega1280"
+  - TEST_PLATFORM="rambo"
+  - TEST_PLATFORM="sanguino_atmega1284p"
+  - TEST_PLATFORM="sanguino_atmega644p"
+
+  # Broken Extended STM32 Environments
+  #- TEST_PLATFORM="ARMED"
+  #- TEST_PLATFORM="BIGTREE_BTT002"
+  #- TEST_PLATFORM="BIGTREE_SKR_PRO"
+
+  # Extended STM32 Environments
+  - TEST_PLATFORM="STM32F103RC_bigtree"
+  - TEST_PLATFORM="jgaurora_a5s_a1"
+  - TEST_PLATFORM="STM32F103VE_longer"
+  - TEST_PLATFORM="STM32F407VE_black"
+  - TEST_PLATFORM="mks_robin"
+
+  # Put lengthy tests last
+  - TEST_PLATFORM="LPC1768"
+  - TEST_PLATFORM="LPC1769"
+
+  # Non-working environment tests
+  #- TEST_PLATFORM="at90usb1286_cdc"
+  #- TEST_PLATFORM="at90usb1286_dfu"
+  #- TEST_PLATFORM="STM32F103CB_malyan"
+  #- TEST_PLATFORM="mks_robin_lite"
+  #- TEST_PLATFORM="mks_robin_mini"
+  #- TEST_PLATFORM="mks_robin_nano"
+  #- TEST_PLATFORM="SAMD51_grandcentral_m4"
+  #- TEST_PLATFORM="STM32F103RC_bigtree"
+  #- TEST_PLATFORM="STM32F103RC_bigtree_USB"
+  #- TEST_PLATFORM="STM32F103RC_fysetc"
+  #- TEST_PLATFORM="STM32F4"
+  #- TEST_PLATFORM="STM32F7"
+
+before_install:
+  #
+  # Fetch the tag information for the current branch
+  - git fetch origin --tags
+  #
+  # Publish the buildroot script folder
+  - chmod +x ${TRAVIS_BUILD_DIR}/buildroot/bin/*
+  - chmod +x ${TRAVIS_BUILD_DIR}/buildroot/share/tests/*
+  - export PATH=${TRAVIS_BUILD_DIR}/buildroot/bin/:${TRAVIS_BUILD_DIR}/buildroot/share/tests/:${PATH}
+
+install:
+  #- pip install -U platformio
+  - pip install -U https://github.com/platformio/platformio-core/archive/master.zip
+
+before_script:
+  # Update PlatformIO packages
+  - platformio update
+  #
+  # Change current working directory to the build dir
+  - cd ${TRAVIS_BUILD_DIR}
+  #
+  # Generate custom version include
+  - generate_version ${TRAVIS_BUILD_DIR}/Marlin/
+  - cat ${TRAVIS_BUILD_DIR}/Marlin/Version.h
+  #
+script:
+  - run_tests ${TRAVIS_BUILD_DIR} ${TEST_PLATFORM}

LICENSE

@@ -3,7 +3,7 @@
                     GNU GENERAL PUBLIC LICENSE
                        Version 3, 29 June 2007
 
- Copyright (c) 2007 Free Software Foundation, Inc. <https://www.fsf.org/>
+ Copyright (c) 2007 Free Software Foundation, Inc. <http://fsf.org/>
  Everyone is permitted to copy and distribute verbatim copies
  of this license document, but changing it is not allowed.
 
@@ -647,7 +647,7 @@ the "copyright" line and a pointer to where the full notice is found.
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 Also add information on how to contact you by electronic and paper mail.
 
@@ -666,11 +666,12 @@ might be different; for a GUI interface, you would use an "about box".
   You should also get your employer (if you work as a programmer) or school,
 if any, to sign a "copyright disclaimer" for the program, if necessary.
 For more information on this, and how to apply and follow the GNU GPL, see
-<https://www.gnu.org/licenses/>.
+<http://www.gnu.org/licenses/>.
 
   The GNU General Public License does not permit incorporating your program
 into proprietary programs.  If your program is a subroutine library, you
 may consider it more useful to permit linking proprietary applications with
 the library.  If this is what you want to do, use the GNU Lesser General
 Public License instead of this License.  But first, please read
-<https://www.gnu.org/licenses/why-not-lgpl.html>.
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
+

Makefile

@@ -1,52 +0,0 @@
-help:
-	@echo "Tasks for local development:"
-	@echo "* tests-single-ci:             Run a single test from inside the CI"
-	@echo "* tests-single-local:          Run a single test locally"
-	@echo "* tests-single-local-docker:   Run a single test locally, using docker-compose"
-	@echo "* tests-all-local:             Run all tests locally"
-	@echo "* tests-all-local-docker:      Run all tests locally, using docker-compose"
-	@echo "* setup-local-docker:          Setup local docker-compose"
-	@echo ""
-	@echo "Options for testing:"
-	@echo "  TEST_TARGET          Set when running tests-single-*, to select the"
-	@echo "                       test. If you set it to ALL it will run all "
-	@echo "                       tests, but some of them are broken: use "
-	@echo "                       tests-all-* instead to run only the ones that "
-	@echo "                       run on GitHub CI"
-	@echo "  ONLY_TEST            Limit tests to only those that contain this, or"
-	@echo "                       the index of the test (1-based)"
-	@echo "  VERBOSE_PLATFORMIO   If you want the full PIO output, set any value"
-	@echo "  GIT_RESET_HARD       Used by CI: reset all local changes. WARNING:"
-	@echo "                       THIS WILL UNDO ANY CHANGES YOU'VE MADE!"
-.PHONY: help
-
-tests-single-ci:
-	export GIT_RESET_HARD=true
-	$(MAKE) tests-single-local TEST_TARGET=$(TEST_TARGET)
-.PHONY: tests-single-ci
-
-tests-single-local:
-	@if ! test -n "$(TEST_TARGET)" ; then echo "***ERROR*** Set TEST_TARGET=<your-module> or use make tests-all-local" ; return 1; fi
-	export PATH=./buildroot/bin/:./buildroot/tests/:${PATH} \
-	  && export VERBOSE_PLATFORMIO=$(VERBOSE_PLATFORMIO) \
-	  && run_tests . $(TEST_TARGET) "$(ONLY_TEST)"
-.PHONY: tests-single-local
-
-tests-single-local-docker:
-	@if ! test -n "$(TEST_TARGET)" ; then echo "***ERROR*** Set TEST_TARGET=<your-module> or use make tests-all-local-docker" ; return 1; fi
-	docker-compose run --rm marlin $(MAKE) tests-single-local TEST_TARGET=$(TEST_TARGET) VERBOSE_PLATFORMIO=$(VERBOSE_PLATFORMIO) GIT_RESET_HARD=$(GIT_RESET_HARD) ONLY_TEST="$(ONLY_TEST)"
-.PHONY: tests-single-local-docker
-
-tests-all-local:
-	export PATH=./buildroot/bin/:./buildroot/tests/:${PATH} \
-	  && export VERBOSE_PLATFORMIO=$(VERBOSE_PLATFORMIO) \
-	  && for TEST_TARGET in $$(./get_test_targets.py) ; do echo "Running tests for $$TEST_TARGET" ; run_tests . $$TEST_TARGET ; done
-.PHONY: tests-all-local
-
-tests-all-local-docker:
-	docker-compose run --rm marlin $(MAKE) tests-all-local VERBOSE_PLATFORMIO=$(VERBOSE_PLATFORMIO) GIT_RESET_HARD=$(GIT_RESET_HARD)
-.PHONY: tests-all-local-docker
-
-setup-local-docker:
-	docker-compose build
-.PHONY: setup-local-docker

Marlin/Makefile

@@ -14,7 +14,7 @@
 # Detailed instructions for using the makefile:
 #
 #  1. Modify the line containing "ARDUINO_INSTALL_DIR" to point to the directory that
-#     contains the Arduino installation (for example, under macOS, this
+#     contains the Arduino installation (for example, under Mac OS X, this
 #     might be /Applications/Arduino.app/Contents/Resources/Java).
 #
 #  2. Modify the line containing "UPLOAD_PORT" to refer to the filename
@@ -22,10 +22,8 @@
 #     (e.g. UPLOAD_PORT = /dev/tty.USB0).  If the exact name of this file
 #     changes, you can use * as a wild card (e.g. UPLOAD_PORT = /dev/tty.usb*).
 #
-#  3. Set the line containing "MCU" to match your board's processor. Set
-#     "PROG_MCU" as the AVR part name corresponding to "MCU". You can use the
-#     following command to get a list of correspondences: `avrdude -c alf -p x`
-#     Older boards are atmega8 based, newer ones like Arduino Mini, Bluetooth
+#  3. Set the line containing "MCU" to match your board's processor.
+#     Older one's are atmega8 based, newer ones like Arduino Mini, Bluetooth
 #     or Diecimila have the atmega168.  If you're using a LilyPad Arduino,
 #     change F_CPU to 8000000. If you are using Gen7 electronics, you
 #     probably need to use 20000000. Either way, you must regenerate
@@ -36,18 +34,18 @@
 #  5. Type "make upload", reset your Arduino board, and press enter to
 #     upload your program to the Arduino board.
 #
-# Note that all settings at the top of this file can be overridden from
+# Note that all settings at the top of this file can be overriden from
 # the command line with, for example, "make HARDWARE_MOTHERBOARD=71"
 #
 # To compile for RAMPS (atmega2560) with Arduino 1.6.9 at root/arduino you would use...
 #
 #   make ARDUINO_VERSION=10609 AVR_TOOLS_PATH=/root/arduino/hardware/tools/avr/bin/ \
-#   HARDWARE_MOTHERBOARD=1200 ARDUINO_INSTALL_DIR=/root/arduino
+#   HARDWARE_MOTHERBOARD=33 ARDUINO_INSTALL_DIR=/root/arduino
 #
 # To compile and upload simply add "upload" to the end of the line...
 #
 #   make ARDUINO_VERSION=10609 AVR_TOOLS_PATH=/root/arduino/hardware/tools/avr/bin/ \
-#   HARDWARE_MOTHERBOARD=1200 ARDUINO_INSTALL_DIR=/root/arduino upload
+#   HARDWARE_MOTHERBOARD=33 ARDUINO_INSTALL_DIR=/root/arduino upload
 #
 # If uploading doesn't work try adding the parameter "AVRDUDE_PROGRAMMER=wiring" or
 # start upload manually (using stk500) like so:
@@ -59,26 +57,7 @@
 #
 
 # This defines the board to compile for (see boards.h for your board's ID)
-HARDWARE_MOTHERBOARD ?= 1020
-
-ifeq ($(OS),Windows_NT)
-  # Windows
-  ARDUINO_INSTALL_DIR ?= ${HOME}/Arduino
-  ARDUINO_USER_DIR ?= ${HOME}/Arduino
-else
-  UNAME_S := $(shell uname -s)
-  ifeq ($(UNAME_S),Linux)
-    # Linux
-    ARDUINO_INSTALL_DIR ?= /usr/share/arduino
-    ARDUINO_USER_DIR ?= ${HOME}/Arduino
-  endif
-  ifeq ($(UNAME_S),Darwin)
-    # Darwin (macOS)
-    ARDUINO_INSTALL_DIR ?= /Applications/Arduino.app/Contents/Java
-    ARDUINO_USER_DIR ?= ${HOME}/Documents/Arduino
-    AVR_TOOLS_PATH ?= /Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/
-  endif
-endif
+HARDWARE_MOTHERBOARD ?= 11
 
 # Arduino source install directory, and version number
 # On most linuxes this will be /usr/share/arduino
@@ -88,44 +67,35 @@ ARDUINO_VERSION      ?= 106
 # The installed Libraries are in the User folder
 ARDUINO_USER_DIR ?= ${HOME}/Arduino
 
-# You can optionally set a path to the avr-gcc tools.
-# Requires a trailing slash. For example, /usr/local/avr-gcc/bin/
+# You can optionally set a path to the avr-gcc tools. Requires a trailing slash. (ex: /usr/local/avr-gcc/bin)
 AVR_TOOLS_PATH ?=
 
-# Programmer configuration
+#Programmer configuration
 UPLOAD_RATE        ?= 57600
 AVRDUDE_PROGRAMMER ?= arduino
-# On most linuxes this will be /dev/ttyACM0 or /dev/ttyACM1
+# on most linuxes this will be /dev/ttyACM0 or /dev/ttyACM1
 UPLOAD_PORT        ?= /dev/ttyUSB0
 
-# Directory used to build files in, contains all the build files, from object
-# files to the final hex file on linux it is best to put an absolute path
-# like /home/username/tmp .
+#Directory used to build files in, contains all the build files, from object files to the final hex file
+#on linux it is best to put an absolute path like /home/username/tmp .
 BUILD_DIR          ?= applet
 
 # This defines whether Liquid_TWI2 support will be built
 LIQUID_TWI2        ?= 0
 
-# This defines if Wire is needed
+# this defines if Wire is needed
 WIRE               ?= 0
 
-# This defines if Tone is needed (i.e SPEAKER is defined in Configuration.h)
-# Disabling this (and SPEAKER) saves approximatively 350 bytes of memory.
-TONE               ?= 1
+# this defines if U8GLIB is needed (may require RELOC_WORKAROUND)
+U8GLIB             ?= 1
 
-# This defines if U8GLIB is needed (may require RELOC_WORKAROUND)
-U8GLIB             ?= 0
-
-# This defines whether to include the Trinamic TMCStepper library
-TMC                ?= 0
-
-# This defines whether to include the AdaFruit NeoPixel library
-NEOPIXEL           ?= 0
+# this defines whether to include the Trinamic TMCStepper library
+TMC                ?= 1
 
 ############
 # Try to automatically determine whether RELOC_WORKAROUND is needed based
 # on GCC versions:
-#   https://www.avrfreaks.net/comment/1789106#comment-1789106
+#   http://www.avrfreaks.net/comment/1789106#comment-1789106
 
 CC_MAJ:=$(shell $(CC) -dM -E - < /dev/null | grep __GNUC__ | cut -f3 -d\ )
 CC_MIN:=$(shell $(CC) -dM -E - < /dev/null | grep __GNUC_MINOR__ | cut -f3 -d\ )
@@ -197,115 +167,90 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1100)
 else ifeq ($(HARDWARE_MOTHERBOARD),1101)
 # Velleman K8400 Controller (derived from 3Drag Controller)
 else ifeq ($(HARDWARE_MOTHERBOARD),1102)
-# Velleman K8600 Controller (Vertex Nano)
-else ifeq ($(HARDWARE_MOTHERBOARD),1103)
-# Velleman K8800 Controller (Vertex Delta)
-else ifeq ($(HARDWARE_MOTHERBOARD),1104)
 # 2PrintBeta BAM&DICE with STK drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1105)
+else ifeq ($(HARDWARE_MOTHERBOARD),1103)
 # 2PrintBeta BAM&DICE Due with STK drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1106)
+else ifeq ($(HARDWARE_MOTHERBOARD),1104)
 # MKS BASE v1.0
-else ifeq ($(HARDWARE_MOTHERBOARD),1107)
+else ifeq ($(HARDWARE_MOTHERBOARD),1105)
 # MKS v1.4 with A4982 stepper drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1108)
+else ifeq ($(HARDWARE_MOTHERBOARD),1106)
 # MKS v1.5 with Allegro A4982 stepper drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1109)
-# MKS v1.6 with Allegro A4982 stepper drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1110)
+else ifeq ($(HARDWARE_MOTHERBOARD),1107)
 # MKS BASE 1.0 with Heroic HR4982 stepper drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1111)
+else ifeq ($(HARDWARE_MOTHERBOARD),1108)
 # MKS GEN v1.3 or 1.4
-else ifeq ($(HARDWARE_MOTHERBOARD),1112)
+else ifeq ($(HARDWARE_MOTHERBOARD),1109)
 # MKS GEN L
-else ifeq ($(HARDWARE_MOTHERBOARD),1113)
+else ifeq ($(HARDWARE_MOTHERBOARD),1110)
 # zrib V2.0 control board (Chinese knock off RAMPS replica)
-else ifeq ($(HARDWARE_MOTHERBOARD),1114)
-# BigTreeTech or BIQU KFB2.0
-else ifeq ($(HARDWARE_MOTHERBOARD),1115)
+else ifeq ($(HARDWARE_MOTHERBOARD),1111)
+# Bigtreetech or BIQU KFB2.0
+else ifeq ($(HARDWARE_MOTHERBOARD),1112)
 # Felix 2.0+ Electronics Board (RAMPS like)
-else ifeq ($(HARDWARE_MOTHERBOARD),1116)
+else ifeq ($(HARDWARE_MOTHERBOARD),1113)
 # Invent-A-Part RigidBoard
-else ifeq ($(HARDWARE_MOTHERBOARD),1117)
+else ifeq ($(HARDWARE_MOTHERBOARD),1114)
 # Invent-A-Part RigidBoard V2
-else ifeq ($(HARDWARE_MOTHERBOARD),1118)
+else ifeq ($(HARDWARE_MOTHERBOARD),1115)
 # Sainsmart 2-in-1 board
-else ifeq ($(HARDWARE_MOTHERBOARD),1119)
+else ifeq ($(HARDWARE_MOTHERBOARD),1116)
 # Ultimaker
-else ifeq ($(HARDWARE_MOTHERBOARD),1120)
+else ifeq ($(HARDWARE_MOTHERBOARD),1117)
 # Ultimaker (Older electronics. Pre 1.5.4. This is rare)
-else ifeq ($(HARDWARE_MOTHERBOARD),1121)
-  MCU              ?= atmega1280
-  PROG_MCU         ?= m1280
+else ifeq ($(HARDWARE_MOTHERBOARD),1118)
+  MCU ?= atmega1280
 
 # Azteeg X3
-else ifeq ($(HARDWARE_MOTHERBOARD),1122)
+else ifeq ($(HARDWARE_MOTHERBOARD),1119)
 # Azteeg X3 Pro
-else ifeq ($(HARDWARE_MOTHERBOARD),1123)
+else ifeq ($(HARDWARE_MOTHERBOARD),1120)
 # Ultimainboard 2.x (Uses TEMP_SENSOR 20)
-else ifeq ($(HARDWARE_MOTHERBOARD),1124)
+else ifeq ($(HARDWARE_MOTHERBOARD),1121)
 # Rumba
-else ifeq ($(HARDWARE_MOTHERBOARD),1125)
+else ifeq ($(HARDWARE_MOTHERBOARD),1122)
 # Raise3D Rumba
-else ifeq ($(HARDWARE_MOTHERBOARD),1126)
+else ifeq ($(HARDWARE_MOTHERBOARD),1123)
 # Rapide Lite RL200 Rumba
-else ifeq ($(HARDWARE_MOTHERBOARD),1127)
+else ifeq ($(HARDWARE_MOTHERBOARD),1124)
 # Formbot T-Rex 2 Plus
-else ifeq ($(HARDWARE_MOTHERBOARD),1128)
+else ifeq ($(HARDWARE_MOTHERBOARD),1125)
 # Formbot T-Rex 3
-else ifeq ($(HARDWARE_MOTHERBOARD),1129)
+else ifeq ($(HARDWARE_MOTHERBOARD),1126)
 # Formbot Raptor
-else ifeq ($(HARDWARE_MOTHERBOARD),1130)
+else ifeq ($(HARDWARE_MOTHERBOARD),1127)
 # Formbot Raptor 2
-else ifeq ($(HARDWARE_MOTHERBOARD),1131)
+else ifeq ($(HARDWARE_MOTHERBOARD),1128)
 # bq ZUM Mega 3D
-else ifeq ($(HARDWARE_MOTHERBOARD),1132)
+else ifeq ($(HARDWARE_MOTHERBOARD),1129)
 # MakeBoard Mini v2.1.2 is a control board sold by MicroMake
-else ifeq ($(HARDWARE_MOTHERBOARD),1133)
+else ifeq ($(HARDWARE_MOTHERBOARD),1130)
 # TriGorilla Anycubic version 1.3 based on RAMPS EFB
-else ifeq ($(HARDWARE_MOTHERBOARD),1134)
+else ifeq ($(HARDWARE_MOTHERBOARD),1131)
 # TriGorilla Anycubic version 1.4 based on RAMPS EFB
-else ifeq ($(HARDWARE_MOTHERBOARD),1135)
+else ifeq ($(HARDWARE_MOTHERBOARD),1132)
 # TriGorilla Anycubic version 1.4 Rev 1.1
-else ifeq ($(HARDWARE_MOTHERBOARD),1136)
+else ifeq ($(HARDWARE_MOTHERBOARD),1133)
 # Creality: Ender-4, CR-8
-else ifeq ($(HARDWARE_MOTHERBOARD),1137)
+else ifeq ($(HARDWARE_MOTHERBOARD),1134)
 # Creality: CR10S, CR20, CR-X
-else ifeq ($(HARDWARE_MOTHERBOARD),1138)
+else ifeq ($(HARDWARE_MOTHERBOARD),1135)
 # Dagoma F5
-else ifeq ($(HARDWARE_MOTHERBOARD),1139)
-# FYSETC F6 1.3
-else ifeq ($(HARDWARE_MOTHERBOARD),1140)
-# FYSETC F6 1.5
-else ifeq ($(HARDWARE_MOTHERBOARD),1141)
+else ifeq ($(HARDWARE_MOTHERBOARD),1136)
+# FYSETC F6
+else ifeq ($(HARDWARE_MOTHERBOARD),1137)
 # Duplicator i3 Plus
-else ifeq ($(HARDWARE_MOTHERBOARD),1142)
+else ifeq ($(HARDWARE_MOTHERBOARD),1138)
 # VORON
-else ifeq ($(HARDWARE_MOTHERBOARD),1143)
+else ifeq ($(HARDWARE_MOTHERBOARD),1139)
 # TRONXY V3 1.0
-else ifeq ($(HARDWARE_MOTHERBOARD),1144)
+else ifeq ($(HARDWARE_MOTHERBOARD),1140)
 # Z-Bolt X Series
-else ifeq ($(HARDWARE_MOTHERBOARD),1145)
+else ifeq ($(HARDWARE_MOTHERBOARD),1141)
 # TT OSCAR
-else ifeq ($(HARDWARE_MOTHERBOARD),1146)
+else ifeq ($(HARDWARE_MOTHERBOARD),1142)
 # Overlord/Overlord Pro
-else ifeq ($(HARDWARE_MOTHERBOARD),1147)
-# ADIMLab Gantry v1
-else ifeq ($(HARDWARE_MOTHERBOARD),1148)
-# ADIMLab Gantry v2
-else ifeq ($(HARDWARE_MOTHERBOARD),1149)
-# BIQU Tango V1
-else ifeq ($(HARDWARE_MOTHERBOARD),1150)
-# MKS GEN L V2
-else ifeq ($(HARDWARE_MOTHERBOARD),1151)
-# MKS GEN L V2.1
-else ifeq ($(HARDWARE_MOTHERBOARD),1152)
-# Copymaster 3D
-else ifeq ($(HARDWARE_MOTHERBOARD),1153)
-# Ortur 4
-else ifeq ($(HARDWARE_MOTHERBOARD),1154)
-# Tenlog D3 Hero
-else ifeq ($(HARDWARE_MOTHERBOARD),1155)
+else ifeq ($(HARDWARE_MOTHERBOARD),1143)
 
 #
 # RAMBo and derivatives
@@ -332,44 +277,42 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1205)
 else ifeq ($(HARDWARE_MOTHERBOARD),1300)
 # Cartesio CN Controls V12
 else ifeq ($(HARDWARE_MOTHERBOARD),1301)
-# Cartesio CN Controls V15
-else ifeq ($(HARDWARE_MOTHERBOARD),1302)
 # Cheaptronic v1.0
-else ifeq ($(HARDWARE_MOTHERBOARD),1303)
+else ifeq ($(HARDWARE_MOTHERBOARD),1302)
 # Cheaptronic v2.0
-else ifeq ($(HARDWARE_MOTHERBOARD),1304)
+else ifeq ($(HARDWARE_MOTHERBOARD),1303)
 # Makerbot Mightyboard Revision E
-else ifeq ($(HARDWARE_MOTHERBOARD),1305)
+else ifeq ($(HARDWARE_MOTHERBOARD),1304)
 # Megatronics
-else ifeq ($(HARDWARE_MOTHERBOARD),1306)
+else ifeq ($(HARDWARE_MOTHERBOARD),1305)
 # Megatronics v2.0
-else ifeq ($(HARDWARE_MOTHERBOARD),1307)
+else ifeq ($(HARDWARE_MOTHERBOARD),1306)
 # Megatronics v3.0
-else ifeq ($(HARDWARE_MOTHERBOARD),1308)
+else ifeq ($(HARDWARE_MOTHERBOARD),1307)
 # Megatronics v3.1
-else ifeq ($(HARDWARE_MOTHERBOARD),1309)
+else ifeq ($(HARDWARE_MOTHERBOARD),1308)
 # Megatronics v3.2
-else ifeq ($(HARDWARE_MOTHERBOARD),1310)
+else ifeq ($(HARDWARE_MOTHERBOARD),1309)
 # Elefu Ra Board (v3)
-else ifeq ($(HARDWARE_MOTHERBOARD),1311)
+else ifeq ($(HARDWARE_MOTHERBOARD),1310)
 # Leapfrog
-else ifeq ($(HARDWARE_MOTHERBOARD),1312)
+else ifeq ($(HARDWARE_MOTHERBOARD),1311)
 # Mega controller
-else ifeq ($(HARDWARE_MOTHERBOARD),1313)
+else ifeq ($(HARDWARE_MOTHERBOARD),1312)
 # Geeetech GT2560 Rev B for Mecreator2
-else ifeq ($(HARDWARE_MOTHERBOARD),1314)
+else ifeq ($(HARDWARE_MOTHERBOARD),1313)
 # Geeetech GT2560 Rev. A
-else ifeq ($(HARDWARE_MOTHERBOARD),1315)
+else ifeq ($(HARDWARE_MOTHERBOARD),1314)
 # Geeetech GT2560 Rev. A+ (with auto level probe)
-else ifeq ($(HARDWARE_MOTHERBOARD),1316)
+else ifeq ($(HARDWARE_MOTHERBOARD),1315)
 # Geeetech GT2560 Rev B for A10(M/D)
-else ifeq ($(HARDWARE_MOTHERBOARD),1317)
+else ifeq ($(HARDWARE_MOTHERBOARD),1316)
 # Geeetech GT2560 Rev B for A20(M/D)
-else ifeq ($(HARDWARE_MOTHERBOARD),1318)
+else ifeq ($(HARDWARE_MOTHERBOARD),1317)
 # Einstart retrofit
-else ifeq ($(HARDWARE_MOTHERBOARD),1319)
+else ifeq ($(HARDWARE_MOTHERBOARD),1318)
 # Wanhao 0ne+ i3 Mini
-else ifeq ($(HARDWARE_MOTHERBOARD),1320)
+else ifeq ($(HARDWARE_MOTHERBOARD),1319)
 
 #
 # ATmega1281, ATmega2561
@@ -378,11 +321,9 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1320)
 # Minitronics v1.0/1.1
 else ifeq ($(HARDWARE_MOTHERBOARD),1400)
   MCU              ?= atmega1281
-  PROG_MCU         ?= m1281
 # Silvergate v1.0
 else ifeq ($(HARDWARE_MOTHERBOARD),1401)
   MCU              ?= atmega1281
-  PROG_MCU         ?= m1281
 
 #
 # Sanguinololu and Derivatives - ATmega644P, ATmega1284P
@@ -392,57 +333,42 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1401)
 else ifeq ($(HARDWARE_MOTHERBOARD),1500)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
 # Sanguinololu 1.2 and above
 else ifeq ($(HARDWARE_MOTHERBOARD),1501)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
 # Melzi
 else ifeq ($(HARDWARE_MOTHERBOARD),1502)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
-# Melzi V2.0
+# Melzi with ATmega1284 (MaKr3d version)
 else ifeq ($(HARDWARE_MOTHERBOARD),1503)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega1284p
-  PROG_MCU         ?= m1284p
-# Melzi with ATmega1284 (MaKr3d version)
+# Melzi Creality3D board (for CR-10 etc)
 else ifeq ($(HARDWARE_MOTHERBOARD),1504)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega1284p
-  PROG_MCU         ?= m1284p
-# Melzi Creality3D board (for CR-10 etc)
+# Melzi Malyan M150 board
 else ifeq ($(HARDWARE_MOTHERBOARD),1505)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega1284p
-  PROG_MCU         ?= m1284p
-# Melzi Malyan M150 board
+# Tronxy X5S
 else ifeq ($(HARDWARE_MOTHERBOARD),1506)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega1284p
-  PROG_MCU         ?= m1284p
-# Tronxy X5S
+# STB V1.1
 else ifeq ($(HARDWARE_MOTHERBOARD),1507)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega1284p
-  PROG_MCU         ?= m1284p
-# STB V1.1
+# Azteeg X1
 else ifeq ($(HARDWARE_MOTHERBOARD),1508)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega1284p
-  PROG_MCU         ?= m1284p
-# Azteeg X1
+# Anet 1.0 (Melzi clone)
 else ifeq ($(HARDWARE_MOTHERBOARD),1509)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega1284p
-  PROG_MCU         ?= m1284p
-# Anet 1.0 (Melzi clone)
-else ifeq ($(HARDWARE_MOTHERBOARD),1510)
-  HARDWARE_VARIANT ?= Sanguino
-  MCU              ?= atmega1284p
-  PROG_MCU         ?= m1284p
 
 #
 # Other ATmega644P, ATmega644, ATmega1284P
@@ -452,61 +378,50 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1510)
 else ifeq ($(HARDWARE_MOTHERBOARD),1600)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
 # Gen3+
 else ifeq ($(HARDWARE_MOTHERBOARD),1601)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
 # Gen6
 else ifeq ($(HARDWARE_MOTHERBOARD),1602)
   HARDWARE_VARIANT ?= Gen6
   MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
 # Gen6 deluxe
 else ifeq ($(HARDWARE_MOTHERBOARD),1603)
   HARDWARE_VARIANT ?= Gen6
   MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
 # Gen7 custom (Alfons3 Version)
 else ifeq ($(HARDWARE_MOTHERBOARD),1604)
   HARDWARE_VARIANT ?= Gen7
   MCU              ?= atmega644
-  PROG_MCU         ?= m644
   F_CPU            ?= 20000000
 # Gen7 v1.1, v1.2
 else ifeq ($(HARDWARE_MOTHERBOARD),1605)
   HARDWARE_VARIANT ?= Gen7
   MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
   F_CPU            ?= 20000000
 # Gen7 v1.3
 else ifeq ($(HARDWARE_MOTHERBOARD),1606)
   HARDWARE_VARIANT ?= Gen7
   MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
   F_CPU            ?= 20000000
 # Gen7 v1.4
 else ifeq ($(HARDWARE_MOTHERBOARD),1607)
   HARDWARE_VARIANT ?= Gen7
   MCU              ?= atmega1284p
-  PROG_MCU         ?= m1284p
   F_CPU            ?= 20000000
 # Alpha OMCA board
 else ifeq ($(HARDWARE_MOTHERBOARD),1608)
   HARDWARE_VARIANT ?= SanguinoA
   MCU              ?= atmega644
-  PROG_MCU         ?= m644
 # Final OMCA board
 else ifeq ($(HARDWARE_MOTHERBOARD),1609)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
 # Sethi 3D_1
 else ifeq ($(HARDWARE_MOTHERBOARD),1610)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
 
 #
 # Teensyduino - AT90USB1286, AT90USB1286P
@@ -516,60 +431,51 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1610)
 else ifeq ($(HARDWARE_MOTHERBOARD),1700)
   HARDWARE_VARIANT ?= Teensy
   MCU              ?= at90usb1286
-  PROG_MCU         ?= usb1286
 # Printrboard (AT90USB1286)
 else ifeq ($(HARDWARE_MOTHERBOARD),1701)
   HARDWARE_VARIANT ?= Teensy
   MCU              ?= at90usb1286
-  PROG_MCU         ?= usb1286
 # Printrboard Revision F (AT90USB1286)
 else ifeq ($(HARDWARE_MOTHERBOARD),1702)
   HARDWARE_VARIANT ?= Teensy
   MCU              ?= at90usb1286
-  PROG_MCU         ?= usb1286
 # Brainwave (AT90USB646)
 else ifeq ($(HARDWARE_MOTHERBOARD),1703)
   HARDWARE_VARIANT ?= Teensy
   MCU              ?= at90usb646
-  PROG_MCU         ?= usb646
 # Brainwave Pro (AT90USB1286)
 else ifeq ($(HARDWARE_MOTHERBOARD),1704)
   HARDWARE_VARIANT ?= Teensy
   MCU              ?= at90usb1286
-  PROG_MCU         ?= usb1286
 # SAV Mk-I (AT90USB1286)
 else ifeq ($(HARDWARE_MOTHERBOARD),1705)
   HARDWARE_VARIANT ?= Teensy
   MCU              ?= at90usb1286
-  PROG_MCU         ?= usb1286
 # Teensy++2.0 (AT90USB1286)
 else ifeq ($(HARDWARE_MOTHERBOARD),1706)
   HARDWARE_VARIANT ?= Teensy
   MCU              ?= at90usb1286
-  PROG_MCU         ?= usb1286
 # 5DPrint D8 Driver Board
 else ifeq ($(HARDWARE_MOTHERBOARD),1707)
   HARDWARE_VARIANT ?= Teensy
   MCU              ?= at90usb1286
-  PROG_MCU         ?= usb1286
 
 # UltiMachine Archim1 (with DRV8825 drivers)
 else ifeq ($(HARDWARE_MOTHERBOARD),3023)
   HARDWARE_VARIANT ?= archim
   MCPU              = cortex-m3
-  F_CPU             = 84000000
+  F_CPU             = 84000000L
   IS_MCU            = 0
 # UltiMachine Archim2 (with TMC2130 drivers)
 else ifeq ($(HARDWARE_MOTHERBOARD),3024)
   HARDWARE_VARIANT ?= archim
   MCPU              = cortex-m3
-  F_CPU             = 84000000
+  F_CPU             = 84000000L
   IS_MCU            = 0
 endif
 
 # Be sure to regenerate speed_lookuptable.h with create_speed_lookuptable.py
 # if you are setting this to something other than 16MHz
-# Do not put the UL suffix, it's done later on.
 # Set to 16Mhz if not yet set.
 F_CPU ?= 16000000
 
@@ -579,8 +485,7 @@ IS_MCU ?= 1
 ifeq ($(IS_MCU),1)
   # Set to arduino, ATmega2560 if not yet set.
   HARDWARE_VARIANT ?= arduino
-  MCU              ?= atmega2560
-  PROG_MCU         ?= m2560
+  MCU ?= atmega2560
 
   TOOL_PREFIX = avr
   MCU_FLAGS   = -mmcu=$(MCU)
@@ -611,36 +516,27 @@ VPATH += $(BUILD_DIR)
 VPATH += $(HARDWARE_SRC)
 
 ifeq ($(HARDWARE_VARIANT), $(filter $(HARDWARE_VARIANT),arduino Teensy Sanguino))
-  # Old libraries (avr-core 1.6.21 < / Arduino < 1.6.8)
-  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/SPI
-  # New libraries (avr-core >= 1.6.21 / Arduino >= 1.6.8)
-  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/SPI/src
+VPATH += $(ARDUINO_INSTALL_DIR)/hardware/marlin/avr/libraries/LiquidCrystal/src
+VPATH += $(ARDUINO_INSTALL_DIR)/hardware/marlin/avr/libraries/SPI
 endif
 
 ifeq ($(IS_MCU),1)
   VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/cores/arduino
 
-  # Old libraries (avr-core 1.6.21 < / Arduino < 1.6.8)
   VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/SPI
-  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/SoftwareSerial
-  # New libraries (avr-core >= 1.6.21 / Arduino >= 1.6.8)
   VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/SPI/src
   VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/SoftwareSerial/src
 endif
 
 VPATH += $(ARDUINO_INSTALL_DIR)/libraries/LiquidCrystal/src
-
 ifeq ($(LIQUID_TWI2), 1)
-  WIRE   = 1
-  VPATH += $(ARDUINO_INSTALL_DIR)/libraries/LiquidTWI2
+VPATH += $(ARDUINO_INSTALL_DIR)/libraries/Wire
+VPATH += $(ARDUINO_INSTALL_DIR)/libraries/Wire/utility
+VPATH += $(ARDUINO_INSTALL_DIR)/libraries/LiquidTWI2
 endif
 ifeq ($(WIRE), 1)
-  # Old libraries (avr-core 1.6.21 / Arduino < 1.6.8)
-  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/Wire
-  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/Wire/utility
-  # New libraries (avr-core >= 1.6.21 / Arduino >= 1.6.8)
-  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/Wire/src
-  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/Wire/src/utility
+VPATH += $(ARDUINO_INSTALL_DIR)/libraries/Wire
+VPATH += $(ARDUINO_INSTALL_DIR)/libraries/Wire/utility
 endif
 ifeq ($(NEOPIXEL), 1)
 VPATH += $(ARDUINO_INSTALL_DIR)/libraries/Adafruit_NeoPixel
@@ -712,23 +608,13 @@ ifeq ($(WIRE), 1)
   LIB_CXXSRC += Wire.cpp
 endif
 
-ifeq ($(TONE), 1)
-  LIB_CXXSRC += Tone.cpp
-endif
-
 ifeq ($(U8GLIB), 1)
   LIB_CXXSRC += U8glib.cpp
-  LIB_SRC += u8g_ll_api.c u8g_bitmap.c u8g_clip.c u8g_com_null.c u8g_delay.c \
-    u8g_page.c u8g_pb.c u8g_pb16h1.c u8g_rect.c u8g_state.c u8g_font.c \
-    u8g_font_6x13.c u8g_font_04b_03.c u8g_font_5x8.c
+  LIB_SRC += u8g_ll_api.c u8g_bitmap.c u8g_clip.c u8g_com_null.c u8g_delay.c u8g_page.c u8g_pb.c u8g_pb16h1.c u8g_rect.c u8g_state.c u8g_font.c u8g_font_6x13.c u8g_font_04b_03.c u8g_font_5x8.c
 endif
 
 ifeq ($(TMC), 1)
-  LIB_CXXSRC += TMCStepper.cpp COOLCONF.cpp DRV_STATUS.cpp IHOLD_IRUN.cpp \
-    CHOPCONF.cpp GCONF.cpp PWMCONF.cpp DRV_CONF.cpp DRVCONF.cpp DRVCTRL.cpp \
-    DRVSTATUS.cpp ENCMODE.cpp RAMP_STAT.cpp SGCSCONF.cpp SHORT_CONF.cpp \
-    SMARTEN.cpp SW_MODE.cpp SW_SPI.cpp TMC2130Stepper.cpp TMC2208Stepper.cpp \
-    TMC2209Stepper.cpp TMC2660Stepper.cpp TMC5130Stepper.cpp TMC5160Stepper.cpp
+  LIB_CXXSRC += TMCStepper.cpp COOLCONF.cpp DRV_STATUS.cpp IHOLD_IRUN.cpp CHOPCONF.cpp GCONF.cpp PWMCONF.cpp DRV_CONF.cpp DRVCONF.cpp DRVCTRL.cpp DRVSTATUS.cpp ENCMODE.cpp RAMP_STAT.cpp SGCSCONF.cpp SHORT_CONF.cpp SMARTEN.cpp SW_MODE.cpp SW_SPI.cpp TMC2130Stepper.cpp TMC2208Stepper.cpp TMC2209Stepper.cpp TMC2660Stepper.cpp TMC5130Stepper.cpp TMC5160Stepper.cpp
 endif
 
 ifeq ($(RELOC_WORKAROUND), 1)
@@ -770,23 +656,17 @@ REMOVE = rm -f
 MV = mv -f
 
 # Place -D or -U options here
-CDEFS    = -DF_CPU=$(F_CPU)UL ${addprefix -D , $(DEFINES)} -DARDUINO=$(ARDUINO_VERSION)
+CDEFS    = -DF_CPU=$(F_CPU) ${addprefix -D , $(DEFINES)} -DARDUINO=$(ARDUINO_VERSION)
 CXXDEFS  = $(CDEFS)
 
 ifeq ($(HARDWARE_VARIANT), Teensy)
-  CDEFS      += -DUSB_SERIAL
+  CDEFS  += -DUSB_SERIAL
   LIB_SRC    += usb.c pins_teensy.c
   LIB_CXXSRC += usb_api.cpp
 
 else ifeq ($(HARDWARE_VARIANT), archim)
-  CDEFS      += -DARDUINO_SAM_ARCHIM -DARDUINO_ARCH_SAM -D__SAM3X8E__
-  CDEFS      += -DUSB_VID=0x27B1 -DUSB_PID=0x0001 -DUSBCON
-  CDEFS      += '-DUSB_MANUFACTURER="UltiMachine"' '-DUSB_PRODUCT_STRING="Archim"'
-
-  LIB_CXXSRC += variant.cpp IPAddress.cpp Reset.cpp RingBuffer.cpp Stream.cpp \
-    UARTClass.cpp  USARTClass.cpp abi.cpp new.cpp watchdog.cpp CDC.cpp \
-    PluggableUSB.cpp USBCore.cpp
-
+  CDEFS      += -DARDUINO_SAM_ARCHIM -DARDUINO_ARCH_SAM -D__SAM3X8E__ -DUSB_VID=0x27b1 -DUSB_PID=0x0001 -DUSBCON '-DUSB_MANUFACTURER="UltiMachine"' '-DUSB_PRODUCT="Archim"'
+  LIB_CXXSRC += variant.cpp IPAddress.cpp Reset.cpp RingBuffer.cpp Stream.cpp UARTClass.cpp  USARTClass.cpp abi.cpp new.cpp watchdog.cpp CDC.cpp PluggableUSB.cpp  USBCore.cpp
   LIB_SRC    += cortex_handlers.c iar_calls_sam3.c syscalls_sam3.c dtostrf.c itoa.c
 
   ifeq ($(U8GLIB), 1)
@@ -807,25 +687,21 @@ CXXSTANDARD = -std=gnu++11
 CDEBUG = -g$(DEBUG)
 CWARN   = -Wall -Wstrict-prototypes -Wno-packed-bitfield-compat -Wno-pragmas -Wunused-parameter
 CXXWARN = -Wall                     -Wno-packed-bitfield-compat -Wno-pragmas -Wunused-parameter
-CTUNING = -fsigned-char -funsigned-bitfields -fno-exceptions \
+CTUNING = -fsigned-char -funsigned-bitfields -fpack-struct -fno-exceptions \
           -fshort-enums -ffunction-sections -fdata-sections
 ifneq ($(HARDWARE_MOTHERBOARD),)
   CTUNING += -DMOTHERBOARD=${HARDWARE_MOTHERBOARD}
 endif
-
 #CEXTRA = -Wa,-adhlns=$(<:.c=.lst)
 CXXEXTRA = -fno-use-cxa-atexit -fno-threadsafe-statics -fno-rtti
 CFLAGS := $(CDEBUG) $(CDEFS) $(CINCS) -O$(OPT) $(CEXTRA)   $(CTUNING) $(CSTANDARD)
 CXXFLAGS :=         $(CDEFS) $(CINCS) -O$(OPT) $(CXXEXTRA) $(CTUNING) $(CXXSTANDARD)
 ASFLAGS :=          $(CDEFS)
 #ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs
-
 ifeq ($(HARDWARE_VARIANT), archim)
   LD_PREFIX = -Wl,--gc-sections,-Map,Marlin.ino.map,--cref,--check-sections,--entry=Reset_Handler,--unresolved-symbols=report-all,--warn-common,--warn-section-align
   LD_SUFFIX = $(LDLIBS)
-
-  LDFLAGS   = -lm -T$(LDSCRIPT) -u _sbrk -u link -u _close -u _fstat -u _isatty
-  LDFLAGS  += -u _lseek -u _read -u _write -u _exit -u kill -u _getpid
+  LDFLAGS   = -lm -T$(LDSCRIPT) -u _sbrk -u link -u _close -u _fstat -u _isatty -u _lseek -u _read -u _write -u _exit -u kill -u _getpid
 else
   LD_PREFIX = -Wl,--gc-sections,--relax
   LDFLAGS   = -lm
@@ -841,7 +717,7 @@ else
   AVRDUDE_CONF = $(ARDUINO_INSTALL_DIR)/hardware/tools/avr/etc/avrdude.conf
 endif
 AVRDUDE_FLAGS = -D -C$(AVRDUDE_CONF) \
-  -p$(PROG_MCU) -P$(AVRDUDE_PORT) -c$(AVRDUDE_PROGRAMMER) \
+  -p$(MCU) -P$(AVRDUDE_PORT) -c$(AVRDUDE_PROGRAMMER) \
   -b$(UPLOAD_RATE)
 
 # Since Marlin 2.0, the source files may be distributed into several
@@ -942,7 +818,7 @@ extcoff: $(TARGET).elf
 
 .elf.eep:
 	-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
-	  --change-section-lma .eeprom=0 -O $(FORMAT) $< $@
+    --change-section-lma .eeprom=0 -O $(FORMAT) $< $@
 
 # Create extended listing file from ELF output file.
 .elf.lss:
@@ -956,7 +832,7 @@ extcoff: $(TARGET).elf
 
 $(BUILD_DIR)/$(TARGET).elf: $(OBJ) Configuration.h
 	$(Pecho) "  CXX   $@"
-	$P $(CXX) $(LD_PREFIX) $(ALL_CXXFLAGS) -o $@ -L. $(OBJ) $(LDFLAGS) $(LD_SUFFIX)
+	$P $(CC) $(LD_PREFIX) $(ALL_CXXFLAGS) -o $@ -L. $(OBJ) $(LDFLAGS) $(LD_SUFFIX)
 
 # Object files that were found in "src" will be stored in $(BUILD_DIR)
 # in directories that mirror the structure of "src"

Marlin/Marlin.ino

@@ -1,8 +1,9 @@
-/*==============================================================================
+/*
+================================================================================
 
   Marlin Firmware
 
-  (c) 2011-2020 MarlinFirmware
+  (c) 2011-2019 MarlinFirmware
   Portions of Marlin are (c) by their respective authors.
   All code complies with GPLv2 and/or GPLv3
 
@@ -11,33 +12,30 @@
 Greetings! Thank you for choosing Marlin 2 as your 3D printer firmware.
 
 To configure Marlin you must edit Configuration.h and Configuration_adv.h
-located in the root 'Marlin' folder. Check our Configurations repository to
-see if there's a more suitable starting-point for your specific hardware.
+located in the root 'Marlin' folder. Check the config/examples folder to see if
+there's a more suitable starting-point for your specific hardware.
 
 Before diving in, we recommend the following essential links:
 
 Marlin Firmware Official Website
 
-  - https://marlinfw.org/
+  - http://marlinfw.org/
     The official Marlin Firmware website contains the most up-to-date
     documentation. Contributions are always welcome!
 
 Configuration
 
-  - https://github.com/MarlinFirmware/Configurations
-    Example configurations for several printer models.
-
   - https://www.youtube.com/watch?v=3gwWVFtdg-4
     A good 20-minute overview of Marlin configuration by Tom Sanladerer.
     (Applies to Marlin 1.0.x, so Jerk and Acceleration should be halved.)
     Also... https://www.google.com/search?tbs=vid%3A1&q=configure+marlin
 
-  - https://marlinfw.org/docs/configuration/configuration.html
+  - http://marlinfw.org/docs/configuration/configuration.html
     Marlin's configuration options are explained in more detail here.
 
 Getting Help
 
-  - https://reprap.org/forum/list.php?415
+  - http://forums.reprap.org/list.php?415
     The Marlin Discussion Forum is a great place to get help from other Marlin
     users who may have experienced similar issues to your own.
 
@@ -47,11 +45,9 @@ Getting Help
 
 Contributing
 
-  - https://marlinfw.org/docs/development/contributing.html
+  - http://marlinfw.org/docs/development/contributing.html
     If you'd like to contribute to Marlin, read this first!
 
-  - https://marlinfw.org/docs/development/coding_standards.html
+  - http://marlinfw.org/docs/development/coding_standards.html
     Before submitting code get to know the Coding Standards.
-
-
-------------------------------------------------------------------------------*/
+*/

Marlin/Version.h

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -16,7 +16,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 #pragma once
@@ -28,25 +28,25 @@
 /**
  * Marlin release version identifier
  */
-#define SHORT_BUILD_VERSION "TM3D2.0.7.2-CR6-C"
+#define SHORT_BUILD_VERSION "2.0.x_TR20"
 
 /**
  * Verbose version identifier which should contain a reference to the location
  * from where the binary was downloaded or the source code was compiled.
  */
-#define DETAILED_BUILD_VERSION SHORT_BUILD_VERSION
+#define DETAILED_BUILD_VERSION SHORT_BUILD_VERSION " TM3D"
 
 /**
  * The STRING_DISTRIBUTION_DATE represents when the binary file was built,
  * here we define this default string as the date where the latest release
  * version was tagged.
  */
-#define STRING_DISTRIBUTION_DATE "2020-12-28"
+#define STRING_DISTRIBUTION_DATE "2019-10-26"
 
 /**
  * Defines a generic printer name to be output to the LCD after booting Marlin.
  */
-#define MACHINE_NAME "TM3D CR-6"
+#define MACHINE_NAME "TM3D Trex"
 
 /**
  * The SOURCE_CODE_URL is the location where users will find the Marlin Source
@@ -54,7 +54,7 @@
  * has a distinct Github fork— the Source Code URL should just be the main
  * Marlin repository.
  */
-#define SOURCE_CODE_URL "https://github.com/InsanityAutomation/Marlin/tree/CR-6Devel"
+#define SOURCE_CODE_URL "https://github.com/InsanityAutomation/Marlin/tree/TM_Trex2+_2.0.x"
 
 /**
  * Default generic printer UUID.
@@ -71,6 +71,6 @@
  * Set the vendor info the serial USB interface, if changable
  * Currently only supported by DUE platform
  */
-//#define USB_DEVICE_VENDOR_ID           0x0000
-//#define USB_DEVICE_PRODUCT_ID          0x0000
-//#define USB_DEVICE_MANUFACTURE_NAME    WEBSITE_URL
+//#define  USB_DEVICE_VENDOR_ID           0x0000
+//#define  USB_DEVICE_PRODUCT_ID          0x0000
+//#define  USB_DEVICE_MANUFACTURE_NAME    WEBSITE_URL

Marlin/_Bootscreen.h

@@ -0,0 +1,94 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Custom Bitmap for splashscreen
+ *
+ * You may use one of the following tools to generate the C++ bitmap array from
+ * a black and white image:
+ *
+ *  - http://www.marlinfw.org/tools/u8glib/converter.html
+ *  - http://www.digole.com/tools/PicturetoC_Hex_converter.php
+ */
+#include <avr/pgmspace.h>
+
+#define CUSTOM_BOOTSCREEN_TIMEOUT   2500
+#define CUSTOM_BOOTSCREEN_BMPWIDTH  128
+#define CUSTOM_BOOTSCREEN_INVERTED
+
+const unsigned char custom_start_bmp[] PROGMEM = {
+  B11111101,B01010101,B01010101,B01010101,B01010101,B01010101,B01011111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
+  B11111110,B00000000,B00000000,B00000000,B00000000,B00000000,B00111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
+  B11111101,B00000000,B00000000,B00000111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
+  B11111110,B00000111,B11000000,B00000101,B01010101,B01010101,B01010101,B01010101,B01010101,B01011111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
+  B11111100,B00001010,B00100000,B00000110,B00000000,B00000000,B00000000,B00000000,B00000000,B00111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
+  B11111110,B00010100,B00010000,B00000101,B00000000,B00000000,B00000111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
+  B11111100,B00101000,B00001000,B00000110,B00000111,B11000000,B00000101,B01010101,B01010101,B01010101,B01010101,B01010101,B01011111,B11111111,B11111111,B11111111,
+  B11111110,B01010100,B00000100,B00000100,B00001010,B00100000,B00000110,B00000000,B00000000,B00000000,B00000000,B00000000,B00111111,B11111111,B11111111,B11111111,
+  B11111100,B01100000,B00000100,B00000110,B00010100,B00010000,B00000101,B00000000,B00000000,B00000111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
+  B11111110,B01010000,B00000100,B00000100,B00101000,B00001000,B00000110,B00000111,B11000000,B00000101,B01010101,B01010101,B01010101,B01010101,B01010101,B01011111,
+  B11111100,B01100000,B00000100,B00000110,B01010100,B00000100,B00000100,B00001010,B00100000,B00000110,B00000000,B00000000,B00000000,B00000000,B00000000,B00111111,
+  B11111110,B01010100,B00000100,B00011100,B01100000,B00000100,B00000110,B00010100,B00010000,B00000101,B00000000,B00000000,B00000000,B00000000,B00000000,B00011111,
+  B11111100,B00101000,B00001000,B00101110,B01010000,B00000100,B00000100,B00101000,B00001000,B00000110,B00000111,B11000000,B00000000,B00000001,B11110000,B00111111,
+  B11111110,B00010100,B00010000,B01010100,B01100000,B00000100,B00000110,B01010100,B00000100,B00000100,B00001010,B00100000,B00000000,B00000010,B00001000,B00011111,
+  B11111100,B00001010,B00100000,B01100110,B01010100,B00000100,B00011100,B01100000,B00000100,B00000110,B00010100,B00010000,B00000000,B00000101,B00000100,B00111111,
+  B11111110,B00000111,B11000000,B01010100,B00101000,B00001000,B00101110,B01010000,B00000100,B00000100,B00101000,B00001000,B00000000,B00001010,B00000010,B00011111,
+  B11111100,B00000000,B00000000,B00101110,B00010100,B00010000,B01010100,B01100000,B00000100,B00000110,B01010100,B00000100,B00000000,B00010101,B00000001,B00111111,
+  B11111110,B00000000,B00000000,B00011100,B00001010,B00100000,B01100110,B01010100,B00000100,B00011100,B01100000,B00000100,B00000000,B00011000,B00000001,B00011111,
+  B11111100,B00000000,B00000000,B00000110,B00000111,B11000000,B01010100,B00101000,B00001000,B00101110,B01010000,B00000100,B00000000,B00010100,B00000001,B00111111,
+  B11111110,B00000000,B00000000,B00000100,B00000000,B00000000,B00101110,B00010100,B00010000,B01010100,B01100000,B00000100,B00000000,B00011000,B00000001,B00011111,
+  B11111100,B11111111,B11111111,B11111110,B00000000,B00000000,B00011100,B00001010,B00100000,B01100110,B01010100,B00000100,B00011100,B00010101,B00000001,B00111111,
+  B11111110,B11010101,B01010101,B01010100,B00000000,B00000000,B00000110,B00000111,B11000000,B01010100,B00101000,B00001000,B00101010,B00001010,B00000010,B00011111,
+  B11111100,B10000100,B00010000,B01000110,B00000000,B00000000,B00000100,B00000000,B00000000,B00101110,B00010100,B00010000,B01010001,B00000101,B00000100,B00111111,
+  B11111110,B11000100,B00010000,B01000100,B11111111,B11111111,B11111110,B00000000,B00000000,B00011100,B00001010,B00100000,B01100001,B00000010,B10001000,B00011111,
+  B11111100,B10000100,B00010000,B01000110,B11010101,B01010101,B01010100,B00000000,B00000000,B00000110,B00000111,B11000000,B01010001,B00000001,B11110000,B00111111,
+  B11111110,B10000100,B00010000,B01000100,B10000100,B00010000,B01000110,B00000000,B00000000,B00000100,B00000000,B00000000,B00101010,B00000000,B00000000,B00011111,
+  B11111100,B11000100,B00010000,B01000110,B11000100,B00010000,B01000100,B11111111,B11111111,B11111110,B00000000,B00000000,B00011100,B00000000,B00000000,B00111111,
+  B11111110,B10000100,B00010000,B01000100,B10000100,B00010000,B01000110,B11010101,B01010101,B01010100,B00000000,B00000000,B00000000,B00000000,B00000000,B00011111,
+  B11111100,B11010101,B01010101,B01010110,B10000100,B00010000,B01000100,B10000100,B00010000,B01000110,B00000000,B00000000,B00000000,B00000000,B00000000,B00111111,
+  B11111100,B11111111,B11111111,B11111100,B11000100,B00010000,B01000110,B11000100,B00010000,B01000100,B11111111,B11111111,B11111111,B11111111,B11111111,B10011111,
+  B11111110,B00000000,B00000000,B00000110,B10000100,B00010000,B01000100,B10000100,B00010000,B01000110,B11010101,B01010101,B01010101,B01010101,B01010101,B10111111,
+  B11111101,B01010101,B01010101,B01010100,B11010101,B01010101,B01010110,B10000100,B00010000,B01000100,B10000100,B00010000,B01000001,B00000100,B00010000,B10011111,
+  B11111111,B11111111,B11111111,B11111100,B11111111,B11111111,B11111100,B11000100,B00010000,B01000110,B11000100,B00010000,B01000001,B00000100,B00010001,B10111111,
+  B11111111,B11111111,B11111111,B11111110,B00000000,B00000000,B00000110,B10000100,B00010000,B01000100,B10000100,B00010000,B01000001,B00000100,B00010000,B10011111,
+  B11111111,B11111111,B11111111,B11111101,B01010101,B01010101,B01010100,B11010101,B01010101,B01010110,B10000100,B00010000,B01000001,B00000100,B00010000,B10011111,
+  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111100,B11111111,B11111111,B11111100,B11000100,B00010000,B01000001,B00000100,B00010001,B10111111,
+  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111110,B00000000,B00000000,B00000110,B10000100,B00010000,B01000001,B00000100,B00010000,B10011111,
+  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111101,B01010101,B01010101,B01010100,B11010101,B01010101,B01010101,B01010101,B01010101,B10111111,
+  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111100,B11111111,B11111111,B11111111,B11111111,B11111111,B10011111,
+  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111110,B00000000,B00000000,B00000000,B00000000,B00000000,B00111111,
+  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111101,B01010101,B01010101,B01010101,B01010101,B01010101,B01011111,
+  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
+  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
+  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
+  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
+  B11100000,B00101110,B11111011,B01111101,B11111011,B11111011,B11001111,B11000001,B11011111,B10111011,B00111110,B11000000,B11100001,B11111110,B00111100,B00011111,
+  B11111101,B11101110,B01111011,B00111001,B11111001,B11110011,B11001111,B10011110,B11011111,B10111011,B00111110,B11011111,B11011110,B11111100,B11011101,B11100111,
+  B11111101,B11101110,B00111011,B10111011,B11111001,B11101011,B11010111,B10111111,B01011111,B10111011,B01011110,B11011111,B11011110,B11111101,B11101101,B11110111,
+  B11111101,B11101110,B10111011,B11010011,B11111010,B11101011,B10110111,B00111111,B11011111,B10111011,B01001110,B11011111,B11011111,B11111111,B11001101,B11110011,
+  B11111101,B11101110,B11011011,B11000111,B11111010,B11101011,B10111011,B01111111,B11000000,B00111011,B01101110,B11000000,B11100011,B11111111,B00011101,B11110011,
+  B11111101,B11101110,B11001011,B11101111,B11111010,B11011011,B10111011,B01111111,B11011111,B10111011,B01100110,B11011111,B11111000,B11111111,B11001101,B11110011,
+  B11111101,B11101110,B11101011,B11101111,B11111011,B01011011,B00000011,B00111111,B01011111,B10111011,B01110110,B11011111,B11111110,B01111111,B11101101,B11110011,
+  B11111101,B11101110,B11110011,B11101111,B11111011,B01011011,B01111001,B10111110,B11011111,B10111011,B01111010,B11011111,B11011110,B01111101,B11101101,B11110111,
+  B11111101,B11101110,B11110011,B11101111,B11111011,B10111010,B11111101,B10011110,B11011111,B10111011,B01111100,B11011111,B11011110,B11111101,B11001101,B11100111,
+  B11111101,B11101110,B11111011,B11101111,B11111011,B10111010,B11111101,B11000001,B11011111,B10111011,B01111110,B11000000,B11100000,B11111110,B00011100,B00011111
+};

Marlin/_statusscreen.h

@@ -0,0 +1,74 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Custom Status Screen bitmap
+ *
+ * Place this file in the root with your configuration files
+ * and enable CUSTOM_STATUS_SCREEN_IMAGE in Configuration.h.
+ *
+ * Use the Marlin Bitmap Converter to make your own:
+ * http://marlinfw.org/tools/u8glib/converter.html
+ */
+
+//
+// Status Screen Logo bitmap
+//
+#define STATUS_LOGO_Y            3
+#define STATUS_LOGO_WIDTH       24
+
+const unsigned char status_logo_bmp[] PROGMEM = {
+  B11111111,B11111111,B11111111,
+  B10000000,B00000000,B00000001,
+  B10001110,B00000000,B11100001,
+  B10011111,B00000001,B11110001,
+  B10010011,B10000001,B00111001,
+  B10011111,B10000001,B11111001,
+  B10011111,B10000001,B11111001,
+  B10011111,B10111001,B11111001,
+  B10001111,B00101000,B11110001,
+  B10000000,B00111000,B00000001,
+  B10000000,B00000000,B00000001,
+  B10011111,B11111111,B11111001,
+  B10010001,B01110100,B10011001,
+  B10011011,B00000110,B10101001,
+  B10011011,B01010100,B10101001,
+  B10011011,B01010110,B10101001,
+  B10011011,B01010100,B10011001,
+  B10011111,B11111111,B11111001,
+  B11111111,B11111111,B11111111
+};
+
+//
+// Use default bitmaps
+//
+#define STATUS_HOTEND_ANIM
+#define STATUS_BED_ANIM
+#if HOTENDS < 2
+  #define STATUS_LOGO_X          8
+  #define STATUS_HEATERS_X      40
+  #define STATUS_BED_X          72
+#else
+  #define STATUS_LOGO_X          0
+  #define STATUS_HEATERS_X      32
+  #define STATUS_BED_X          80
+#endif

Marlin/lib/readme.txt

@@ -1,36 +0,0 @@
-
-This directory is intended for the project specific (private) libraries.
-PlatformIO will compile them to static libraries and link to executable file.
-
-The source code of each library should be placed in separate directory, like
-"lib/private_lib/[here are source files]".
-
-For example, see how can be organized `Foo` and `Bar` libraries:
-
-|--lib
-|  |--Bar
-|  |  |--docs
-|  |  |--examples
-|  |  |--src
-|  |     |- Bar.c
-|  |     |- Bar.h
-|  |--Foo
-|  |  |- Foo.c
-|  |  |- Foo.h
-|  |- readme.txt --> THIS FILE
-|- platformio.ini
-|--src
-   |- main.c
-
-Then in `src/main.c` you should use:
-
-#include <Foo.h>
-#include <Bar.h>
-
-// rest H/C/CPP code
-
-PlatformIO will find your libraries automatically, configure preprocessor's
-include paths and build them.
-
-More information about PlatformIO Library Dependency Finder
-- https://docs.platformio.org/page/librarymanager/ldf.html

Marlin/src/HAL/AVR/HAL.cpp

@@ -1,85 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#ifdef __AVR__
-
-#include "../../inc/MarlinConfig.h"
-#include "HAL.h"
-
-#ifdef USBCON
-  DefaultSerial MSerial(false, Serial);
-  #ifdef BLUETOOTH
-    BTSerial btSerial(false, bluetoothSerial);
-  #endif
-#endif
-
-// ------------------------
-// Public Variables
-// ------------------------
-
-//uint8_t MCUSR;
-
-// ------------------------
-// Public functions
-// ------------------------
-
-void HAL_init() {
-  // Init Servo Pins
-  #define INIT_SERVO(N) OUT_WRITE(SERVO##N##_PIN, LOW)
-  #if HAS_SERVO_0
-    INIT_SERVO(0);
-  #endif
-  #if HAS_SERVO_1
-    INIT_SERVO(1);
-  #endif
-  #if HAS_SERVO_2
-    INIT_SERVO(2);
-  #endif
-  #if HAS_SERVO_3
-    INIT_SERVO(3);
-  #endif
-}
-
-#if ENABLED(SDSUPPORT)
-
-  #include "../../sd/SdFatUtil.h"
-  int freeMemory() { return SdFatUtil::FreeRam(); }
-
-#else // !SDSUPPORT
-
-extern "C" {
-  extern char __bss_end;
-  extern char __heap_start;
-  extern void* __brkval;
-
-  int freeMemory() {
-    int free_memory;
-    if ((int)__brkval == 0)
-      free_memory = ((int)&free_memory) - ((int)&__bss_end);
-    else
-      free_memory = ((int)&free_memory) - ((int)__brkval);
-    return free_memory;
-  }
-}
-
-#endif // !SDSUPPORT
-
-#endif // __AVR__

Marlin/src/HAL/AVR/HAL.h

@@ -1,210 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-#include "../shared/Marduino.h"
-#include "../shared/HAL_SPI.h"
-#include "fastio.h"
-#include "watchdog.h"
-#include "math.h"
-
-#ifdef USBCON
-  #include <HardwareSerial.h>
-#else
-  #define HardwareSerial_h // Hack to prevent HardwareSerial.h header inclusion
-  #include "MarlinSerial.h"
-#endif
-
-#include <stdint.h>
-#include <util/delay.h>
-#include <avr/eeprom.h>
-#include <avr/pgmspace.h>
-#include <avr/interrupt.h>
-#include <avr/io.h>
-
-#ifndef pgm_read_ptr
-  // Compatibility for avr-libc 1.8.0-4.1 included with Ubuntu for
-  // Windows Subsystem for Linux on Windows 10 as of 10/18/2019
-  #define pgm_read_ptr_far(address_long) (void*)__ELPM_word((uint32_t)(address_long))
-  #define pgm_read_ptr_near(address_short) (void*)__LPM_word((uint16_t)(address_short))
-  #define pgm_read_ptr(address_short) pgm_read_ptr_near(address_short)
-#endif
-
-// ------------------------
-// Defines
-// ------------------------
-
-// AVR PROGMEM extension for sprintf_P
-#define S_FMT "%S"
-
-// AVR PROGMEM extension for string define
-#define PGMSTR(NAM,STR) const char NAM[] PROGMEM = STR
-
-#ifndef CRITICAL_SECTION_START
-  #define CRITICAL_SECTION_START()  unsigned char _sreg = SREG; cli()
-  #define CRITICAL_SECTION_END()    SREG = _sreg
-#endif
-#define ISRS_ENABLED() TEST(SREG, SREG_I)
-#define ENABLE_ISRS()  sei()
-#define DISABLE_ISRS() cli()
-
-// ------------------------
-// Types
-// ------------------------
-
-typedef int8_t pin_t;
-
-#define SHARED_SERVOS HAS_SERVOS
-#define HAL_SERVO_LIB Servo
-
-// ------------------------
-// Public Variables
-// ------------------------
-
-//extern uint8_t MCUSR;
-
-// Serial ports
-#ifdef USBCON
-  #include "../../core/serial_hook.h"
-  typedef ForwardSerial0Type< decltype(Serial) > DefaultSerial;
-  extern DefaultSerial MSerial;
-  #ifdef BLUETOOTH
-    typedef ForwardSerial0Type< decltype(bluetoothSerial) > BTSerial;
-    extern BTSerial btSerial;
-  #endif
-
-  #define MYSERIAL0 TERN(BLUETOOTH, btSerial, MSerial)
-#else
-  #if !WITHIN(SERIAL_PORT, -1, 3)
-    #error "SERIAL_PORT must be from -1 to 3. Please update your configuration."
-  #endif
-  #define MYSERIAL0 customizedSerial1
-
-  #ifdef SERIAL_PORT_2
-    #if !WITHIN(SERIAL_PORT_2, -1, 3)
-      #error "SERIAL_PORT_2 must be from -1 to 3. Please update your configuration."
-    #endif
-    #define MYSERIAL1 customizedSerial2
-  #endif
-#endif
-
-#ifdef MMU2_SERIAL_PORT
-  #if !WITHIN(MMU2_SERIAL_PORT, -1, 3)
-    #error "MMU2_SERIAL_PORT must be from -1 to 3. Please update your configuration."
-  #endif
-  #define MMU2_SERIAL mmuSerial
-#endif
-
-#ifdef LCD_SERIAL_PORT
-  #if !WITHIN(LCD_SERIAL_PORT, -1, 3)
-    #error "LCD_SERIAL_PORT must be from -1 to 3. Please update your configuration."
-  #endif
-  #define LCD_SERIAL lcdSerial
-  #if HAS_DGUS_LCD || ENABLED(DGUS_LCD_UI_CREALITY_TOUCH)
-    #define SERIAL_GET_TX_BUFFER_FREE() LCD_SERIAL.get_tx_buffer_free()
-  #endif
-#endif
-
-// ------------------------
-// Public functions
-// ------------------------
-
-void HAL_init();
-
-//void cli();
-
-//void _delay_ms(const int delay);
-
-inline void HAL_clear_reset_source() { MCUSR = 0; }
-inline uint8_t HAL_get_reset_source() { return MCUSR; }
-
-inline void HAL_reboot() {}  // reboot the board or restart the bootloader
-
-#if GCC_VERSION <= 50000
-  #pragma GCC diagnostic push
-  #pragma GCC diagnostic ignored "-Wunused-function"
-#endif
-
-extern "C" int freeMemory();
-
-#if GCC_VERSION <= 50000
-  #pragma GCC diagnostic pop
-#endif
-
-// ADC
-#ifdef DIDR2
-  #define HAL_ANALOG_SELECT(ind) do{ if (ind < 8) SBI(DIDR0, ind); else SBI(DIDR2, ind & 0x07); }while(0)
-#else
-  #define HAL_ANALOG_SELECT(ind) SBI(DIDR0, ind);
-#endif
-
-inline void HAL_adc_init() {
-  ADCSRA = _BV(ADEN) | _BV(ADSC) | _BV(ADIF) | 0x07;
-  DIDR0 = 0;
-  #ifdef DIDR2
-    DIDR2 = 0;
-  #endif
-}
-
-#define SET_ADMUX_ADCSRA(ch) ADMUX = _BV(REFS0) | (ch & 0x07); SBI(ADCSRA, ADSC)
-#ifdef MUX5
-  #define HAL_START_ADC(ch) if (ch > 7) ADCSRB = _BV(MUX5); else ADCSRB = 0; SET_ADMUX_ADCSRA(ch)
-#else
-  #define HAL_START_ADC(ch) ADCSRB = 0; SET_ADMUX_ADCSRA(ch)
-#endif
-
-#define HAL_ADC_VREF        5.0
-#define HAL_ADC_RESOLUTION 10
-#define HAL_READ_ADC()  ADC
-#define HAL_ADC_READY() !TEST(ADCSRA, ADSC)
-
-#define GET_PIN_MAP_PIN(index) index
-#define GET_PIN_MAP_INDEX(pin) pin
-#define PARSED_PIN_INDEX(code, dval) parser.intval(code, dval)
-
-#define HAL_SENSITIVE_PINS 0, 1
-
-#ifdef __AVR_AT90USB1286__
-  #define JTAG_DISABLE() do{ MCUCR = 0x80; MCUCR = 0x80; }while(0)
-#endif
-
-// AVR compatibility
-#define strtof strtod
-
-#define HAL_CAN_SET_PWM_FREQ   // This HAL supports PWM Frequency adjustment
-
-/**
- *  set_pwm_frequency
- *  Sets the frequency of the timer corresponding to the provided pin
- *  as close as possible to the provided desired frequency. Internally
- *  calculates the required waveform generation mode, prescaler and
- *  resolution values required and sets the timer registers accordingly.
- *  NOTE that the frequency is applied to all pins on the timer (Ex OC3A, OC3B and OC3B)
- *  NOTE that there are limitations, particularly if using TIMER2. (see Configuration_adv.h -> FAST FAN PWM Settings)
- */
-void set_pwm_frequency(const pin_t pin, int f_desired);
-
-/**
- * set_pwm_duty
- *  Sets the PWM duty cycle of the provided pin to the provided value
- *  Optionally allows inverting the duty cycle [default = false]
- *  Optionally allows changing the maximum size of the provided value to enable finer PWM duty control [default = 255]
- */
-void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size=255, const bool invert=false);

Marlin/src/HAL/AVR/HAL_SPI.cpp

@@ -1,253 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
-/**
- * Adapted from Arduino Sd2Card Library
- * Copyright (c) 2009 by William Greiman
- */
-
-/**
- * HAL for AVR - SPI functions
- */
-
-#ifdef __AVR__
-
-#include "../../inc/MarlinConfig.h"
-
-void spiBegin() {
-  OUT_WRITE(SD_SS_PIN, HIGH);
-  SET_OUTPUT(SD_SCK_PIN);
-  SET_INPUT(SD_MISO_PIN);
-  SET_OUTPUT(SD_MOSI_PIN);
-
-  #if DISABLED(SOFTWARE_SPI)
-    // SS must be in output mode even it is not chip select
-    //SET_OUTPUT(SD_SS_PIN);
-    // set SS high - may be chip select for another SPI device
-    //#if SET_SPI_SS_HIGH
-      //WRITE(SD_SS_PIN, HIGH);
-    //#endif
-    // set a default rate
-    spiInit(1);
-  #endif
-}
-
-#if NONE(SOFTWARE_SPI, FORCE_SOFT_SPI)
-
-  // ------------------------
-  // Hardware SPI
-  // ------------------------
-
-  // make sure SPCR rate is in expected bits
-  #if (SPR0 != 0 || SPR1 != 1)
-    #error "unexpected SPCR bits"
-  #endif
-
-  /**
-   * Initialize hardware SPI
-   * Set SCK rate to F_CPU/pow(2, 1 + spiRate) for spiRate [0,6]
-   */
-  void spiInit(uint8_t spiRate) {
-    // See avr processor documentation
-    CBI(
-      #ifdef PRR
-        PRR
-      #elif defined(PRR0)
-        PRR0
-      #endif
-        , PRSPI);
-
-    SPCR = _BV(SPE) | _BV(MSTR) | (spiRate >> 1);
-    SPSR = spiRate & 1 || spiRate == 6 ? 0 : _BV(SPI2X);
-  }
-
-  /** SPI receive a byte */
-  uint8_t spiRec() {
-    SPDR = 0xFF;
-    while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
-    return SPDR;
-  }
-
-  /** SPI read data  */
-  void spiRead(uint8_t* buf, uint16_t nbyte) {
-    if (nbyte-- == 0) return;
-    SPDR = 0xFF;
-    for (uint16_t i = 0; i < nbyte; i++) {
-      while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
-      buf[i] = SPDR;
-      SPDR = 0xFF;
-    }
-    while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
-    buf[nbyte] = SPDR;
-  }
-
-  /** SPI send a byte */
-  void spiSend(uint8_t b) {
-    SPDR = b;
-    while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
-  }
-
-  /** SPI send block  */
-  void spiSendBlock(uint8_t token, const uint8_t* buf) {
-    SPDR = token;
-    for (uint16_t i = 0; i < 512; i += 2) {
-      while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
-      SPDR = buf[i];
-      while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
-      SPDR = buf[i + 1];
-    }
-    while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
-  }
-
-
-  /** begin spi transaction */
-  void spiBeginTransaction(uint32_t spiClock, uint8_t bitOrder, uint8_t dataMode) {
-    // Based on Arduino SPI library
-    // Clock settings are defined as follows. Note that this shows SPI2X
-    // inverted, so the bits form increasing numbers. Also note that
-    // fosc/64 appears twice
-    // SPR1 SPR0 ~SPI2X Freq
-    //   0    0     0   fosc/2
-    //   0    0     1   fosc/4
-    //   0    1     0   fosc/8
-    //   0    1     1   fosc/16
-    //   1    0     0   fosc/32
-    //   1    0     1   fosc/64
-    //   1    1     0   fosc/64
-    //   1    1     1   fosc/128
-
-    // We find the fastest clock that is less than or equal to the
-    // given clock rate. The clock divider that results in clock_setting
-    // is 2 ^^ (clock_div + 1). If nothing is slow enough, we'll use the
-    // slowest (128 == 2 ^^ 7, so clock_div = 6).
-    uint8_t clockDiv;
-
-    // When the clock is known at compiletime, use this if-then-else
-    // cascade, which the compiler knows how to completely optimize
-    // away. When clock is not known, use a loop instead, which generates
-    // shorter code.
-    if (__builtin_constant_p(spiClock)) {
-      if (spiClock >= F_CPU / 2)       clockDiv = 0;
-      else if (spiClock >= F_CPU / 4)  clockDiv = 1;
-      else if (spiClock >= F_CPU / 8)  clockDiv = 2;
-      else if (spiClock >= F_CPU / 16) clockDiv = 3;
-      else if (spiClock >= F_CPU / 32) clockDiv = 4;
-      else if (spiClock >= F_CPU / 64) clockDiv = 5;
-      else                             clockDiv = 6;
-    }
-    else {
-      uint32_t clockSetting = F_CPU / 2;
-      clockDiv = 0;
-      while (clockDiv < 6 && spiClock < clockSetting) {
-        clockSetting /= 2;
-        clockDiv++;
-      }
-    }
-
-    // Compensate for the duplicate fosc/64
-    if (clockDiv == 6) clockDiv = 7;
-
-    // Invert the SPI2X bit
-    clockDiv ^= 0x1;
-
-    SPCR = _BV(SPE) | _BV(MSTR) | ((bitOrder == LSBFIRST) ? _BV(DORD) : 0) |
-      (dataMode << CPHA) | ((clockDiv >> 1) << SPR0);
-    SPSR = clockDiv | 0x01;
-  }
-
-
-#else // SOFTWARE_SPI || FORCE_SOFT_SPI
-
-  // ------------------------
-  // Software SPI
-  // ------------------------
-
-  // nop to tune soft SPI timing
-  #define nop asm volatile ("\tnop\n")
-
-  void spiInit(uint8_t) { /* do nothing */ }
-
-  // Begin SPI transaction, set clock, bit order, data mode
-  void spiBeginTransaction(uint32_t spiClock, uint8_t bitOrder, uint8_t dataMode) { /* do nothing */ }
-
-  // Soft SPI receive byte
-  uint8_t spiRec() {
-    uint8_t data = 0;
-    // no interrupts during byte receive - about 8µs
-    cli();
-    // output pin high - like sending 0xFF
-    WRITE(SD_MOSI_PIN, HIGH);
-
-    LOOP_L_N(i, 8) {
-      WRITE(SD_SCK_PIN, HIGH);
-
-      nop; // adjust so SCK is nice
-      nop;
-
-      data <<= 1;
-
-      if (READ(SD_MISO_PIN)) data |= 1;
-
-      WRITE(SD_SCK_PIN, LOW);
-    }
-
-    sei();
-    return data;
-  }
-
-  // Soft SPI read data
-  void spiRead(uint8_t* buf, uint16_t nbyte) {
-    for (uint16_t i = 0; i < nbyte; i++)
-      buf[i] = spiRec();
-  }
-
-  // Soft SPI send byte
-  void spiSend(uint8_t data) {
-    // no interrupts during byte send - about 8µs
-    cli();
-    LOOP_L_N(i, 8) {
-      WRITE(SD_SCK_PIN, LOW);
-      WRITE(SD_MOSI_PIN, data & 0x80);
-      data <<= 1;
-      WRITE(SD_SCK_PIN, HIGH);
-    }
-
-    nop; // hold SCK high for a few ns
-    nop;
-    nop;
-    nop;
-
-    WRITE(SD_SCK_PIN, LOW);
-
-    sei();
-  }
-
-  // Soft SPI send block
-  void spiSendBlock(uint8_t token, const uint8_t* buf) {
-    spiSend(token);
-    for (uint16_t i = 0; i < 512; i++)
-      spiSend(buf[i]);
-  }
-
-#endif // SOFTWARE_SPI || FORCE_SOFT_SPI
-
-#endif // __AVR__

Marlin/src/HAL/AVR/MarlinSerial.cpp

@@ -1,635 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
-/**
- * MarlinSerial.cpp - Hardware serial library for Wiring
- * Copyright (c) 2006 Nicholas Zambetti.  All right reserved.
- *
- * Modified 23 November 2006 by David A. Mellis
- * Modified 28 September 2010 by Mark Sproul
- * Modified 14 February 2016 by Andreas Hardtung (added tx buffer)
- * Modified 01 October 2017 by Eduardo José Tagle (added XON/XOFF)
- * Modified 10 June 2018 by Eduardo José Tagle (See #10991)
- * Templatized 01 October 2018 by Eduardo José Tagle to allow multiple instances
- */
-
-#ifdef __AVR__
-
-// Disable HardwareSerial.cpp to support chips without a UART (Attiny, etc.)
-
-#include "../../inc/MarlinConfig.h"
-
-#if !defined(USBCON) && (defined(UBRRH) || defined(UBRR0H) || defined(UBRR1H) || defined(UBRR2H) || defined(UBRR3H))
-
-#include "MarlinSerial.h"
-#include "../../MarlinCore.h"
-
-#if ENABLED(DIRECT_STEPPING)
-  #include "../../feature/direct_stepping.h"
-#endif
-
-template<typename Cfg> typename MarlinSerial<Cfg>::ring_buffer_r MarlinSerial<Cfg>::rx_buffer = { 0, 0, { 0 } };
-template<typename Cfg> typename MarlinSerial<Cfg>::ring_buffer_t MarlinSerial<Cfg>::tx_buffer = { 0 };
-template<typename Cfg> bool     MarlinSerial<Cfg>::_written = false;
-template<typename Cfg> uint8_t  MarlinSerial<Cfg>::xon_xoff_state = MarlinSerial<Cfg>::XON_XOFF_CHAR_SENT | MarlinSerial<Cfg>::XON_CHAR;
-template<typename Cfg> uint8_t  MarlinSerial<Cfg>::rx_dropped_bytes = 0;
-template<typename Cfg> uint8_t  MarlinSerial<Cfg>::rx_buffer_overruns = 0;
-template<typename Cfg> uint8_t  MarlinSerial<Cfg>::rx_framing_errors = 0;
-template<typename Cfg> typename MarlinSerial<Cfg>::ring_buffer_pos_t MarlinSerial<Cfg>::rx_max_enqueued = 0;
-
-// A SW memory barrier, to ensure GCC does not overoptimize loops
-#define sw_barrier() asm volatile("": : :"memory");
-
-#include "../../feature/e_parser.h"
-
-// "Atomically" read the RX head index value without disabling interrupts:
-// This MUST be called with RX interrupts enabled, and CAN'T be called
-// from the RX ISR itself!
-template<typename Cfg>
-FORCE_INLINE typename MarlinSerial<Cfg>::ring_buffer_pos_t MarlinSerial<Cfg>::atomic_read_rx_head() {
-  if (Cfg::RX_SIZE > 256) {
-    // Keep reading until 2 consecutive reads return the same value,
-    // meaning there was no update in-between caused by an interrupt.
-    // This works because serial RX interrupts happen at a slower rate
-    // than successive reads of a variable, so 2 consecutive reads with
-    // the same value means no interrupt updated it.
-    ring_buffer_pos_t vold, vnew = rx_buffer.head;
-    sw_barrier();
-    do {
-      vold = vnew;
-      vnew = rx_buffer.head;
-      sw_barrier();
-    } while (vold != vnew);
-    return vnew;
-  }
-  else {
-    // With an 8bit index, reads are always atomic. No need for special handling
-    return rx_buffer.head;
-  }
-}
-
-template<typename Cfg>
-volatile bool MarlinSerial<Cfg>::rx_tail_value_not_stable = false;
-template<typename Cfg>
-volatile uint16_t MarlinSerial<Cfg>::rx_tail_value_backup = 0;
-
-// Set RX tail index, taking into account the RX ISR could interrupt
-//  the write to this variable in the middle - So a backup strategy
-//  is used to ensure reads of the correct values.
-//    -Must NOT be called from the RX ISR -
-template<typename Cfg>
-FORCE_INLINE void MarlinSerial<Cfg>::atomic_set_rx_tail(typename MarlinSerial<Cfg>::ring_buffer_pos_t value) {
-  if (Cfg::RX_SIZE > 256) {
-    // Store the new value in the backup
-    rx_tail_value_backup = value;
-    sw_barrier();
-    // Flag we are about to change the true value
-    rx_tail_value_not_stable = true;
-    sw_barrier();
-    // Store the new value
-    rx_buffer.tail = value;
-    sw_barrier();
-    // Signal the new value is completely stored into the value
-    rx_tail_value_not_stable = false;
-    sw_barrier();
-  }
-  else
-    rx_buffer.tail = value;
-}
-
-// Get the RX tail index, taking into account the read could be
-//  interrupting in the middle of the update of that index value
-//    -Called from the RX ISR -
-template<typename Cfg>
-FORCE_INLINE typename MarlinSerial<Cfg>::ring_buffer_pos_t MarlinSerial<Cfg>::atomic_read_rx_tail() {
-  if (Cfg::RX_SIZE > 256) {
-    // If the true index is being modified, return the backup value
-    if (rx_tail_value_not_stable) return rx_tail_value_backup;
-  }
-  // The true index is stable, return it
-  return rx_buffer.tail;
-}
-
-// (called with RX interrupts disabled)
-template<typename Cfg>
-FORCE_INLINE void MarlinSerial<Cfg>::store_rxd_char() {
-
-  static EmergencyParser::State emergency_state; // = EP_RESET
-
-  // This must read the R_UCSRA register before reading the received byte to detect error causes
-  if (Cfg::DROPPED_RX && B_DOR && !++rx_dropped_bytes) --rx_dropped_bytes;
-  if (Cfg::RX_OVERRUNS && B_DOR && !++rx_buffer_overruns) --rx_buffer_overruns;
-  if (Cfg::RX_FRAMING_ERRORS && B_FE && !++rx_framing_errors) --rx_framing_errors;
-
-  // Read the character from the USART
-  uint8_t c = R_UDR;
-
-  #if ENABLED(DIRECT_STEPPING)
-    if (page_manager.maybe_store_rxd_char(c)) return;
-  #endif
-
-  // Get the tail - Nothing can alter its value while this ISR is executing, but there's
-  // a chance that this ISR interrupted the main process while it was updating the index.
-  // The backup mechanism ensures the correct value is always returned.
-  const ring_buffer_pos_t t = atomic_read_rx_tail();
-
-  // Get the head pointer - This ISR is the only one that modifies its value, so it's safe to read here
-  ring_buffer_pos_t h = rx_buffer.head;
-
-  // Get the next element
-  ring_buffer_pos_t i = (ring_buffer_pos_t)(h + 1) & (ring_buffer_pos_t)(Cfg::RX_SIZE - 1);
-
-  if (Cfg::EMERGENCYPARSER) emergency_parser.update(emergency_state, c);
-
-  // If the character is to be stored at the index just before the tail
-  // (such that the head would advance to the current tail), the RX FIFO is
-  // full, so don't write the character or advance the head.
-  if (i != t) {
-    rx_buffer.buffer[h] = c;
-    h = i;
-  }
-  else if (Cfg::DROPPED_RX && !++rx_dropped_bytes)
-    --rx_dropped_bytes;
-
-  if (Cfg::MAX_RX_QUEUED) {
-    // Calculate count of bytes stored into the RX buffer
-    const ring_buffer_pos_t rx_count = (ring_buffer_pos_t)(h - t) & (ring_buffer_pos_t)(Cfg::RX_SIZE - 1);
-
-    // Keep track of the maximum count of enqueued bytes
-    NOLESS(rx_max_enqueued, rx_count);
-  }
-
-  if (Cfg::XONOFF) {
-    // If the last char that was sent was an XON
-    if ((xon_xoff_state & XON_XOFF_CHAR_MASK) == XON_CHAR) {
-
-      // Bytes stored into the RX buffer
-      const ring_buffer_pos_t rx_count = (ring_buffer_pos_t)(h - t) & (ring_buffer_pos_t)(Cfg::RX_SIZE - 1);
-
-      // If over 12.5% of RX buffer capacity, send XOFF before running out of
-      // RX buffer space .. 325 bytes @ 250kbits/s needed to let the host react
-      // and stop sending bytes. This translates to 13mS propagation time.
-      if (rx_count >= (Cfg::RX_SIZE) / 8) {
-
-        // At this point, definitely no TX interrupt was executing, since the TX ISR can't be preempted.
-        // Don't enable the TX interrupt here as a means to trigger the XOFF char, because if it happens
-        // to be in the middle of trying to disable the RX interrupt in the main program, eventually the
-        // enabling of the TX interrupt could be undone. The ONLY reliable thing this can do to ensure
-        // the sending of the XOFF char is to send it HERE AND NOW.
-
-        // About to send the XOFF char
-        xon_xoff_state = XOFF_CHAR | XON_XOFF_CHAR_SENT;
-
-        // Wait until the TX register becomes empty and send it - Here there could be a problem
-        // - While waiting for the TX register to empty, the RX register could receive a new
-        //   character. This must also handle that situation!
-        while (!B_UDRE) {
-
-          if (B_RXC) {
-            // A char arrived while waiting for the TX buffer to be empty - Receive and process it!
-
-            i = (ring_buffer_pos_t)(h + 1) & (ring_buffer_pos_t)(Cfg::RX_SIZE - 1);
-
-            // Read the character from the USART
-            c = R_UDR;
-
-            if (Cfg::EMERGENCYPARSER) emergency_parser.update(emergency_state, c);
-
-            // If the character is to be stored at the index just before the tail
-            // (such that the head would advance to the current tail), the FIFO is
-            // full, so don't write the character or advance the head.
-            if (i != t) {
-              rx_buffer.buffer[h] = c;
-              h = i;
-            }
-            else if (Cfg::DROPPED_RX && !++rx_dropped_bytes)
-              --rx_dropped_bytes;
-          }
-          sw_barrier();
-        }
-
-        R_UDR = XOFF_CHAR;
-
-        // Clear the TXC bit -- "can be cleared by writing a one to its bit
-        // location". This makes sure flush() won't return until the bytes
-        // actually got written
-        B_TXC = 1;
-
-        // At this point there could be a race condition between the write() function
-        // and this sending of the XOFF char. This interrupt could happen between the
-        // wait to be empty TX buffer loop and the actual write of the character. Since
-        // the TX buffer is full because it's sending the XOFF char, the only way to be
-        // sure the write() function will succeed is to wait for the XOFF char to be
-        // completely sent. Since an extra character could be received during the wait
-        // it must also be handled!
-        while (!B_UDRE) {
-
-          if (B_RXC) {
-            // A char arrived while waiting for the TX buffer to be empty - Receive and process it!
-
-            i = (ring_buffer_pos_t)(h + 1) & (ring_buffer_pos_t)(Cfg::RX_SIZE - 1);
-
-            // Read the character from the USART
-            c = R_UDR;
-
-            if (Cfg::EMERGENCYPARSER)
-              emergency_parser.update(emergency_state, c);
-
-            // If the character is to be stored at the index just before the tail
-            // (such that the head would advance to the current tail), the FIFO is
-            // full, so don't write the character or advance the head.
-            if (i != t) {
-              rx_buffer.buffer[h] = c;
-              h = i;
-            }
-            else if (Cfg::DROPPED_RX && !++rx_dropped_bytes)
-              --rx_dropped_bytes;
-          }
-          sw_barrier();
-        }
-
-        // At this point everything is ready. The write() function won't
-        // have any issues writing to the UART TX register if it needs to!
-      }
-    }
-  }
-
-  // Store the new head value - The main loop will retry until the value is stable
-  rx_buffer.head = h;
-}
-
-// (called with TX irqs disabled)
-template<typename Cfg>
-FORCE_INLINE void MarlinSerial<Cfg>::_tx_udr_empty_irq() {
-  if (Cfg::TX_SIZE > 0) {
-    // Read positions
-    uint8_t t = tx_buffer.tail;
-    const uint8_t h = tx_buffer.head;
-
-    if (Cfg::XONOFF) {
-      // If an XON char is pending to be sent, do it now
-      if (xon_xoff_state == XON_CHAR) {
-
-        // Send the character
-        R_UDR = XON_CHAR;
-
-        // clear the TXC bit -- "can be cleared by writing a one to its bit
-        // location". This makes sure flush() won't return until the bytes
-        // actually got written
-        B_TXC = 1;
-
-        // Remember we sent it.
-        xon_xoff_state = XON_CHAR | XON_XOFF_CHAR_SENT;
-
-        // If nothing else to transmit, just disable TX interrupts.
-        if (h == t) B_UDRIE = 0; // (Non-atomic, could be reenabled by the main program, but eventually this will succeed)
-
-        return;
-      }
-    }
-
-    // If nothing to transmit, just disable TX interrupts. This could
-    // happen as the result of the non atomicity of the disabling of RX
-    // interrupts that could end reenabling TX interrupts as a side effect.
-    if (h == t) {
-      B_UDRIE = 0; // (Non-atomic, could be reenabled by the main program, but eventually this will succeed)
-      return;
-    }
-
-    // There is something to TX, Send the next byte
-    const uint8_t c = tx_buffer.buffer[t];
-    t = (t + 1) & (Cfg::TX_SIZE - 1);
-    R_UDR = c;
-    tx_buffer.tail = t;
-
-    // Clear the TXC bit (by writing a one to its bit location).
-    // Ensures flush() won't return until the bytes are actually written/
-    B_TXC = 1;
-
-    // Disable interrupts if there is nothing to transmit following this byte
-    if (h == t) B_UDRIE = 0; // (Non-atomic, could be reenabled by the main program, but eventually this will succeed)
-  }
-}
-
-// Public Methods
-template<typename Cfg>
-void MarlinSerial<Cfg>::begin(const long baud) {
-  uint16_t baud_setting;
-  bool useU2X = true;
-
-  #if F_CPU == 16000000UL && SERIAL_PORT == 0
-    // Hard-coded exception for compatibility with the bootloader shipped
-    // with the Duemilanove and previous boards, and the firmware on the
-    // 8U2 on the Uno and Mega 2560.
-    if (baud == 57600) useU2X = false;
-  #endif
-
-  R_UCSRA = 0;
-  if (useU2X) {
-    B_U2X = 1;
-    baud_setting = (F_CPU / 4 / baud - 1) / 2;
-  }
-  else
-    baud_setting = (F_CPU / 8 / baud - 1) / 2;
-
-  // assign the baud_setting, a.k.a. ubbr (USART Baud Rate Register)
-  R_UBRRH = baud_setting >> 8;
-  R_UBRRL = baud_setting;
-
-  B_RXEN = 1;
-  B_TXEN = 1;
-  B_RXCIE = 1;
-  if (Cfg::TX_SIZE > 0) B_UDRIE = 0;
-  _written = false;
-}
-
-template<typename Cfg>
-void MarlinSerial<Cfg>::end() {
-  B_RXEN = 0;
-  B_TXEN = 0;
-  B_RXCIE = 0;
-  B_UDRIE = 0;
-}
-
-template<typename Cfg>
-int MarlinSerial<Cfg>::peek() {
-  const ring_buffer_pos_t h = atomic_read_rx_head(), t = rx_buffer.tail;
-  return h == t ? -1 : rx_buffer.buffer[t];
-}
-
-template<typename Cfg>
-int MarlinSerial<Cfg>::read() {
-  const ring_buffer_pos_t h = atomic_read_rx_head();
-
-  // Read the tail. Main thread owns it, so it is safe to directly read it
-  ring_buffer_pos_t t = rx_buffer.tail;
-
-  // If nothing to read, return now
-  if (h == t) return -1;
-
-  // Get the next char
-  const int v = rx_buffer.buffer[t];
-  t = (ring_buffer_pos_t)(t + 1) & (Cfg::RX_SIZE - 1);
-
-  // Advance tail - Making sure the RX ISR will always get an stable value, even
-  // if it interrupts the writing of the value of that variable in the middle.
-  atomic_set_rx_tail(t);
-
-  if (Cfg::XONOFF) {
-    // If the XOFF char was sent, or about to be sent...
-    if ((xon_xoff_state & XON_XOFF_CHAR_MASK) == XOFF_CHAR) {
-      // Get count of bytes in the RX buffer
-      const ring_buffer_pos_t rx_count = (ring_buffer_pos_t)(h - t) & (ring_buffer_pos_t)(Cfg::RX_SIZE - 1);
-      if (rx_count < (Cfg::RX_SIZE) / 10) {
-        if (Cfg::TX_SIZE > 0) {
-          // Signal we want an XON character to be sent.
-          xon_xoff_state = XON_CHAR;
-          // Enable TX ISR. Non atomic, but it will eventually enable them
-          B_UDRIE = 1;
-        }
-        else {
-          // If not using TX interrupts, we must send the XON char now
-          xon_xoff_state = XON_CHAR | XON_XOFF_CHAR_SENT;
-          while (!B_UDRE) sw_barrier();
-          R_UDR = XON_CHAR;
-        }
-      }
-    }
-  }
-
-  return v;
-}
-
-template<typename Cfg>
-typename MarlinSerial<Cfg>::ring_buffer_pos_t MarlinSerial<Cfg>::available() {
-  const ring_buffer_pos_t h = atomic_read_rx_head(), t = rx_buffer.tail;
-  return (ring_buffer_pos_t)(Cfg::RX_SIZE + h - t) & (Cfg::RX_SIZE - 1);
-}
-
-template<typename Cfg>
-void MarlinSerial<Cfg>::flush() {
-
-  // Set the tail to the head:
-  //  - Read the RX head index in a safe way. (See atomic_read_rx_head.)
-  //  - Set the tail, making sure the RX ISR will always get a stable value, even
-  //    if it interrupts the writing of the value of that variable in the middle.
-  atomic_set_rx_tail(atomic_read_rx_head());
-
-  if (Cfg::XONOFF) {
-    // If the XOFF char was sent, or about to be sent...
-    if ((xon_xoff_state & XON_XOFF_CHAR_MASK) == XOFF_CHAR) {
-      if (Cfg::TX_SIZE > 0) {
-        // Signal we want an XON character to be sent.
-        xon_xoff_state = XON_CHAR;
-        // Enable TX ISR. Non atomic, but it will eventually enable it.
-        B_UDRIE = 1;
-      }
-      else {
-        // If not using TX interrupts, we must send the XON char now
-        xon_xoff_state = XON_CHAR | XON_XOFF_CHAR_SENT;
-        while (!B_UDRE) sw_barrier();
-        R_UDR = XON_CHAR;
-      }
-    }
-  }
-}
-
-template<typename Cfg>
-size_t MarlinSerial<Cfg>::write(const uint8_t c) {
-  if (Cfg::TX_SIZE == 0) {
-
-    _written = true;
-    while (!B_UDRE) sw_barrier();
-    R_UDR = c;
-
-  }
-  else {
-
-    _written = true;
-
-    // If the TX interrupts are disabled and the data register
-    // is empty, just write the byte to the data register and
-    // be done. This shortcut helps significantly improve the
-    // effective datarate at high (>500kbit/s) bitrates, where
-    // interrupt overhead becomes a slowdown.
-    // Yes, there is a race condition between the sending of the
-    // XOFF char at the RX ISR, but it is properly handled there
-    if (!B_UDRIE && B_UDRE) {
-      R_UDR = c;
-
-      // clear the TXC bit -- "can be cleared by writing a one to its bit
-      // location". This makes sure flush() won't return until the bytes
-      // actually got written
-      B_TXC = 1;
-      return 1;
-    }
-
-    const uint8_t i = (tx_buffer.head + 1) & (Cfg::TX_SIZE - 1);
-
-    // If global interrupts are disabled (as the result of being called from an ISR)...
-    if (!ISRS_ENABLED()) {
-
-      // Make room by polling if it is possible to transmit, and do so!
-      while (i == tx_buffer.tail) {
-
-        // If we can transmit another byte, do it.
-        if (B_UDRE) _tx_udr_empty_irq();
-
-        // Make sure compiler rereads tx_buffer.tail
-        sw_barrier();
-      }
-    }
-    else {
-      // Interrupts are enabled, just wait until there is space
-      while (i == tx_buffer.tail) sw_barrier();
-    }
-
-    // Store new char. head is always safe to move
-    tx_buffer.buffer[tx_buffer.head] = c;
-    tx_buffer.head = i;
-
-    // Enable TX ISR - Non atomic, but it will eventually enable TX ISR
-    B_UDRIE = 1;
-  }
-  return 1;
-}
-
-template<typename Cfg>
-void MarlinSerial<Cfg>::flushTX() {
-
-  if (Cfg::TX_SIZE == 0) {
-    // No bytes written, no need to flush. This special case is needed since there's
-    // no way to force the TXC (transmit complete) bit to 1 during initialization.
-    if (!_written) return;
-
-    // Wait until everything was transmitted
-    while (!B_TXC) sw_barrier();
-
-    // At this point nothing is queued anymore (DRIE is disabled) and
-    // the hardware finished transmission (TXC is set).
-
-  }
-  else {
-
-    // No bytes written, no need to flush. This special case is needed since there's
-    // no way to force the TXC (transmit complete) bit to 1 during initialization.
-    if (!_written) return;
-
-    // If global interrupts are disabled (as the result of being called from an ISR)...
-    if (!ISRS_ENABLED()) {
-
-      // Wait until everything was transmitted - We must do polling, as interrupts are disabled
-      while (tx_buffer.head != tx_buffer.tail || !B_TXC) {
-
-        // If there is more space, send an extra character
-        if (B_UDRE) _tx_udr_empty_irq();
-
-        sw_barrier();
-      }
-
-    }
-    else {
-      // Wait until everything was transmitted
-      while (tx_buffer.head != tx_buffer.tail || !B_TXC) sw_barrier();
-    }
-
-    // At this point nothing is queued anymore (DRIE is disabled) and
-    // the hardware finished transmission (TXC is set).
-  }
-}
-
-// Hookup ISR handlers
-ISR(SERIAL_REGNAME(USART, SERIAL_PORT, _RX_vect)) {
-  MarlinSerial<MarlinSerialCfg<SERIAL_PORT>>::store_rxd_char();
-}
-
-ISR(SERIAL_REGNAME(USART, SERIAL_PORT, _UDRE_vect)) {
-  MarlinSerial<MarlinSerialCfg<SERIAL_PORT>>::_tx_udr_empty_irq();
-}
-
-// Because of the template definition above, it's required to instantiate the template to have all method generated
-template class MarlinSerial< MarlinSerialCfg<SERIAL_PORT> >;
-MSerialT customizedSerial1(MSerialT::HasEmergencyParser);
-
-#ifdef SERIAL_PORT_2
-
-  // Hookup ISR handlers
-  ISR(SERIAL_REGNAME(USART, SERIAL_PORT_2, _RX_vect)) {
-    MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>>::store_rxd_char();
-  }
-
-  ISR(SERIAL_REGNAME(USART, SERIAL_PORT_2, _UDRE_vect)) {
-    MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>>::_tx_udr_empty_irq();
-  }
-
-  template class MarlinSerial< MarlinSerialCfg<SERIAL_PORT_2> >;
-  MSerialT2 customizedSerial2(MSerialT2::HasEmergencyParser);
-#endif
-
-#ifdef MMU2_SERIAL_PORT
-
-  ISR(SERIAL_REGNAME(USART, MMU2_SERIAL_PORT, _RX_vect)) {
-    MarlinSerial<MMU2SerialCfg<MMU2_SERIAL_PORT>>::store_rxd_char();
-  }
-
-  ISR(SERIAL_REGNAME(USART, MMU2_SERIAL_PORT, _UDRE_vect)) {
-    MarlinSerial<MMU2SerialCfg<MMU2_SERIAL_PORT>>::_tx_udr_empty_irq();
-  }
-
-  template class MarlinSerial< MMU2SerialCfg<MMU2_SERIAL_PORT> >;
-  MSerialT3 mmuSerial(MSerialT3::HasEmergencyParser);
-#endif
-
-#ifdef LCD_SERIAL_PORT
-
-  ISR(SERIAL_REGNAME(USART, LCD_SERIAL_PORT, _RX_vect)) {
-    MarlinSerial<LCDSerialCfg<LCD_SERIAL_PORT>>::store_rxd_char();
-  }
-
-  ISR(SERIAL_REGNAME(USART, LCD_SERIAL_PORT, _UDRE_vect)) {
-    MarlinSerial<LCDSerialCfg<LCD_SERIAL_PORT>>::_tx_udr_empty_irq();
-  }
-
-  template class MarlinSerial< LCDSerialCfg<LCD_SERIAL_PORT> >;
-  MSerialT4 lcdSerial(MSerialT4::HasEmergencyParser);
-
-  #if HAS_DGUS_LCD || ENABLED(DGUS_LCD_UI_CREALITY_TOUCH)
-    template<typename Cfg>
-    typename MarlinSerial<Cfg>::ring_buffer_pos_t MarlinSerial<Cfg>::get_tx_buffer_free() {
-      const ring_buffer_pos_t t = tx_buffer.tail,  // next byte to send.
-                              h = tx_buffer.head;  // next pos for queue.
-      int ret = t - h - 1;
-      if (ret < 0) ret += Cfg::TX_SIZE + 1;
-      return ret;
-    }
-  #endif
-
-#endif
-
-#endif // !USBCON && (UBRRH || UBRR0H || UBRR1H || UBRR2H || UBRR3H)
-
-// For AT90USB targets use the UART for BT interfacing
-#if defined(USBCON) && ENABLED(BLUETOOTH)
-  MSerialT5 bluetoothSerial(false);
-#endif
-
-#endif // __AVR__

Marlin/src/HAL/AVR/MarlinSerial.h

@@ -1,303 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-/**
- * MarlinSerial.h - Hardware serial library for Wiring
- * Copyright (c) 2006 Nicholas Zambetti.  All right reserved.
- *
- * Modified 28 September 2010 by Mark Sproul
- * Modified 14 February 2016 by Andreas Hardtung (added tx buffer)
- * Modified 01 October 2017 by Eduardo José Tagle (added XON/XOFF)
- * Templatized 01 October 2018 by Eduardo José Tagle to allow multiple instances
- */
-
-#include <WString.h>
-
-#include "../../inc/MarlinConfigPre.h"
-#include "../../core/serial_hook.h"
-
-#ifndef SERIAL_PORT
-  #define SERIAL_PORT 0
-#endif
-
-#ifndef USBCON
-
-  // The presence of the UBRRH register is used to detect a UART.
-  #define UART_PRESENT(port) ((port == 0 && (defined(UBRRH) || defined(UBRR0H))) || \
-                              (port == 1 && defined(UBRR1H)) || (port == 2 && defined(UBRR2H)) || \
-                              (port == 3 && defined(UBRR3H)))
-
-  // These are macros to build serial port register names for the selected SERIAL_PORT (C preprocessor
-  // requires two levels of indirection to expand macro values properly)
-  #define SERIAL_REGNAME(registerbase,number,suffix) _SERIAL_REGNAME(registerbase,number,suffix)
-  #if SERIAL_PORT == 0 && (!defined(UBRR0H) || !defined(UDR0)) // use un-numbered registers if necessary
-    #define _SERIAL_REGNAME(registerbase,number,suffix) registerbase##suffix
-  #else
-    #define _SERIAL_REGNAME(registerbase,number,suffix) registerbase##number##suffix
-  #endif
-
-  // Registers used by MarlinSerial class (expanded depending on selected serial port)
-
-  // Templated 8bit register (generic)
-  #define UART_REGISTER_DECL_BASE(registerbase, suffix) \
-    template<int portNr> struct R_##registerbase##x##suffix {}
-
-  // Templated 8bit register (specialization for each port)
-  #define UART_REGISTER_DECL(port, registerbase, suffix) \
-    template<> struct R_##registerbase##x##suffix<port> { \
-      constexpr R_##registerbase##x##suffix(int) {} \
-      FORCE_INLINE void operator=(uint8_t newVal) const { SERIAL_REGNAME(registerbase,port,suffix) = newVal; } \
-      FORCE_INLINE operator uint8_t() const { return SERIAL_REGNAME(registerbase,port,suffix); } \
-    }
-
-  // Templated 1bit register (generic)
-  #define UART_BIT_DECL_BASE(registerbase, suffix, bit) \
-    template<int portNr>struct B_##bit##x {}
-
-  // Templated 1bit register (specialization for each port)
-  #define UART_BIT_DECL(port, registerbase, suffix, bit) \
-    template<> struct B_##bit##x<port> { \
-      constexpr B_##bit##x(int) {} \
-      FORCE_INLINE void operator=(int newVal) const { \
-        if (newVal) \
-          SBI(SERIAL_REGNAME(registerbase,port,suffix),SERIAL_REGNAME(bit,port,)); \
-        else \
-          CBI(SERIAL_REGNAME(registerbase,port,suffix),SERIAL_REGNAME(bit,port,)); \
-      } \
-      FORCE_INLINE operator bool() const { return TEST(SERIAL_REGNAME(registerbase,port,suffix),SERIAL_REGNAME(bit,port,)); } \
-    }
-
-  #define UART_DECL_BASE() \
-    UART_REGISTER_DECL_BASE(UCSR,A);\
-    UART_REGISTER_DECL_BASE(UDR,);\
-    UART_REGISTER_DECL_BASE(UBRR,H);\
-    UART_REGISTER_DECL_BASE(UBRR,L);\
-    UART_BIT_DECL_BASE(UCSR,B,RXEN);\
-    UART_BIT_DECL_BASE(UCSR,B,TXEN);\
-    UART_BIT_DECL_BASE(UCSR,A,TXC);\
-    UART_BIT_DECL_BASE(UCSR,B,RXCIE);\
-    UART_BIT_DECL_BASE(UCSR,A,UDRE);\
-    UART_BIT_DECL_BASE(UCSR,A,FE);\
-    UART_BIT_DECL_BASE(UCSR,A,DOR);\
-    UART_BIT_DECL_BASE(UCSR,B,UDRIE);\
-    UART_BIT_DECL_BASE(UCSR,A,RXC);\
-    UART_BIT_DECL_BASE(UCSR,A,U2X)
-
-  #define UART_DECL(port) \
-    UART_REGISTER_DECL(port,UCSR,A);\
-    UART_REGISTER_DECL(port,UDR,);\
-    UART_REGISTER_DECL(port,UBRR,H);\
-    UART_REGISTER_DECL(port,UBRR,L);\
-    UART_BIT_DECL(port,UCSR,B,RXEN);\
-    UART_BIT_DECL(port,UCSR,B,TXEN);\
-    UART_BIT_DECL(port,UCSR,A,TXC);\
-    UART_BIT_DECL(port,UCSR,B,RXCIE);\
-    UART_BIT_DECL(port,UCSR,A,UDRE);\
-    UART_BIT_DECL(port,UCSR,A,FE);\
-    UART_BIT_DECL(port,UCSR,A,DOR);\
-    UART_BIT_DECL(port,UCSR,B,UDRIE);\
-    UART_BIT_DECL(port,UCSR,A,RXC);\
-    UART_BIT_DECL(port,UCSR,A,U2X)
-
-  // Declare empty templates
-  UART_DECL_BASE();
-
-  // And all the specializations for each possible serial port
-  #if UART_PRESENT(0)
-    UART_DECL(0);
-  #endif
-  #if UART_PRESENT(1)
-    UART_DECL(1);
-  #endif
-  #if UART_PRESENT(2)
-    UART_DECL(2);
-  #endif
-  #if UART_PRESENT(3)
-    UART_DECL(3);
-  #endif
-
-  #define BYTE 0
-
-  // Templated type selector
-  template<bool b, typename T, typename F> struct TypeSelector { typedef T type;} ;
-  template<typename T, typename F> struct TypeSelector<false, T, F> { typedef F type; };
-
-  template<typename Cfg>
-  class MarlinSerial {
-  protected:
-    // Registers
-    static constexpr R_UCSRxA<Cfg::PORT> R_UCSRA = 0;
-    static constexpr R_UDRx<Cfg::PORT>   R_UDR   = 0;
-    static constexpr R_UBRRxH<Cfg::PORT> R_UBRRH = 0;
-    static constexpr R_UBRRxL<Cfg::PORT> R_UBRRL = 0;
-
-    // Bits
-    static constexpr B_RXENx<Cfg::PORT>  B_RXEN  = 0;
-    static constexpr B_TXENx<Cfg::PORT>  B_TXEN  = 0;
-    static constexpr B_TXCx<Cfg::PORT>   B_TXC   = 0;
-    static constexpr B_RXCIEx<Cfg::PORT> B_RXCIE = 0;
-    static constexpr B_UDREx<Cfg::PORT>  B_UDRE  = 0;
-    static constexpr B_FEx<Cfg::PORT>    B_FE    = 0;
-    static constexpr B_DORx<Cfg::PORT>   B_DOR   = 0;
-    static constexpr B_UDRIEx<Cfg::PORT> B_UDRIE = 0;
-    static constexpr B_RXCx<Cfg::PORT>   B_RXC   = 0;
-    static constexpr B_U2Xx<Cfg::PORT>   B_U2X   = 0;
-
-    // Base size of type on buffer size
-    typedef typename TypeSelector<(Cfg::RX_SIZE>256), uint16_t, uint8_t>::type ring_buffer_pos_t;
-
-    struct ring_buffer_r {
-      volatile ring_buffer_pos_t head, tail;
-      unsigned char buffer[Cfg::RX_SIZE];
-    };
-
-    struct ring_buffer_t {
-      volatile uint8_t head, tail;
-      unsigned char buffer[Cfg::TX_SIZE];
-    };
-
-    static ring_buffer_r rx_buffer;
-    static ring_buffer_t tx_buffer;
-    static bool _written;
-
-    static constexpr uint8_t XON_XOFF_CHAR_SENT = 0x80,  // XON / XOFF Character was sent
-                             XON_XOFF_CHAR_MASK = 0x1F;  // XON / XOFF character to send
-
-    // XON / XOFF character definitions
-    static constexpr uint8_t XON_CHAR  = 17, XOFF_CHAR = 19;
-    static uint8_t xon_xoff_state,
-                   rx_dropped_bytes,
-                   rx_buffer_overruns,
-                   rx_framing_errors;
-    static ring_buffer_pos_t rx_max_enqueued;
-
-    static FORCE_INLINE ring_buffer_pos_t atomic_read_rx_head();
-
-    static volatile bool rx_tail_value_not_stable;
-    static volatile uint16_t rx_tail_value_backup;
-
-    static FORCE_INLINE void atomic_set_rx_tail(ring_buffer_pos_t value);
-    static FORCE_INLINE ring_buffer_pos_t atomic_read_rx_tail();
-
-  public:
-    FORCE_INLINE static void store_rxd_char();
-    FORCE_INLINE static void _tx_udr_empty_irq();
-
-  public:
-    static void begin(const long);
-    static void end();
-    static int peek();
-    static int read();
-    static void flush();
-    static ring_buffer_pos_t available();
-    static size_t write(const uint8_t c);
-    static void flushTX();
-    #if HAS_DGUS_LCD || ENABLED(DGUS_LCD_UI_CREALITY_TOUCH)
-      static ring_buffer_pos_t get_tx_buffer_free();
-    #endif
-
-    enum { HasEmergencyParser = Cfg::EMERGENCYPARSER };
-    static inline bool emergency_parser_enabled() { return Cfg::EMERGENCYPARSER; }
-
-    FORCE_INLINE static uint8_t dropped() { return Cfg::DROPPED_RX ? rx_dropped_bytes : 0; }
-    FORCE_INLINE static uint8_t buffer_overruns() { return Cfg::RX_OVERRUNS ? rx_buffer_overruns : 0; }
-    FORCE_INLINE static uint8_t framing_errors() { return Cfg::RX_FRAMING_ERRORS ? rx_framing_errors : 0; }
-    FORCE_INLINE static ring_buffer_pos_t rxMaxEnqueued() { return Cfg::MAX_RX_QUEUED ? rx_max_enqueued : 0; }
-  };
-
-  template <uint8_t serial>
-  struct MarlinSerialCfg {
-    static constexpr int PORT               = serial;
-    static constexpr unsigned int RX_SIZE   = RX_BUFFER_SIZE;
-    static constexpr unsigned int TX_SIZE   = TX_BUFFER_SIZE;
-    static constexpr bool XONOFF            = ENABLED(SERIAL_XON_XOFF);
-    static constexpr bool EMERGENCYPARSER   = ENABLED(EMERGENCY_PARSER);
-    static constexpr bool DROPPED_RX        = ENABLED(SERIAL_STATS_DROPPED_RX);
-    static constexpr bool RX_OVERRUNS       = ENABLED(SERIAL_STATS_RX_BUFFER_OVERRUNS);
-    static constexpr bool RX_FRAMING_ERRORS = ENABLED(SERIAL_STATS_RX_FRAMING_ERRORS);
-    static constexpr bool MAX_RX_QUEUED     = ENABLED(SERIAL_STATS_MAX_RX_QUEUED);
-  };
-
-  typedef Serial0Type< MarlinSerial< MarlinSerialCfg<SERIAL_PORT> > > MSerialT;
-  extern MSerialT customizedSerial1;
-
-  #ifdef SERIAL_PORT_2
-    typedef Serial0Type< MarlinSerial< MarlinSerialCfg<SERIAL_PORT_2> > > MSerialT2;
-    extern MSerialT2 customizedSerial2;
-  #endif
-
-#endif // !USBCON
-
-#ifdef MMU2_SERIAL_PORT
-  template <uint8_t serial>
-  struct MMU2SerialCfg {
-    static constexpr int PORT               = serial;
-    static constexpr bool XONOFF            = false;
-    static constexpr bool EMERGENCYPARSER   = false;
-    static constexpr bool DROPPED_RX        = false;
-    static constexpr bool RX_FRAMING_ERRORS = false;
-    static constexpr bool MAX_RX_QUEUED     = false;
-    static constexpr unsigned int RX_SIZE   = 32;
-    static constexpr unsigned int TX_SIZE   = 32;
-    static constexpr bool RX_OVERRUNS       = false;
-  };
-
-  typedef Serial0Type< MarlinSerial< MMU2SerialCfg<MMU2_SERIAL_PORT> > > MSerialT3;
-  extern MSerialT3 mmuSerial;
-#endif
-
-#ifdef LCD_SERIAL_PORT
-
-  template <uint8_t serial>
-  struct LCDSerialCfg {
-    static constexpr int PORT                 = serial;
-    static constexpr bool XONOFF              = false;
-    static constexpr bool EMERGENCYPARSER     = ENABLED(EMERGENCY_PARSER);
-    static constexpr bool DROPPED_RX          = false;
-    static constexpr bool RX_FRAMING_ERRORS   = false;
-    static constexpr bool MAX_RX_QUEUED       = false;
-    #if HAS_DGUS_LCD || ENABLED(DGUS_LCD_UI_CREALITY_TOUCH)
-      static constexpr unsigned int RX_SIZE   = DGUS_RX_BUFFER_SIZE;
-      static constexpr unsigned int TX_SIZE   = DGUS_TX_BUFFER_SIZE;
-      static constexpr bool RX_OVERRUNS       = ENABLED(SERIAL_STATS_RX_BUFFER_OVERRUNS);
-    #elif EITHER(ANYCUBIC_LCD_I3MEGA, ANYCUBIC_LCD_CHIRON)
-      static constexpr unsigned int RX_SIZE   = 64;
-      static constexpr unsigned int TX_SIZE   = 128;
-      static constexpr bool RX_OVERRUNS       = false;
-    #else
-      static constexpr unsigned int RX_SIZE   = 64;
-      static constexpr unsigned int TX_SIZE   = 128;
-      static constexpr bool RX_OVERRUNS       = false
-    #endif
-  };
-
-
-  typedef Serial0Type< MarlinSerial< LCDSerialCfg<LCD_SERIAL_PORT> > > MSerialT4;
-  extern MSerialT4 lcdSerial;
-#endif
-
-// Use the UART for Bluetooth in AT90USB configurations
-#if defined(USBCON) && ENABLED(BLUETOOTH)
-  typedef Serial0Type<HardwareSerial> MSerialT5;
-  extern MSerialT5 bluetoothSerial;
-#endif

Marlin/src/HAL/AVR/Servo.cpp

@@ -1,216 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
-/**
- * servo.cpp - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
- * Copyright (c) 2009 Michael Margolis.  All right reserved.
- */
-
-/**
- * A servo is activated by creating an instance of the Servo class passing the desired pin to the attach() method.
- * The servos are pulsed in the background using the value most recently written using the write() method
- *
- * Note that analogWrite of PWM on pins associated with the timer are disabled when the first servo is attached.
- * Timers are seized as needed in groups of 12 servos - 24 servos use two timers, 48 servos will use four.
- *
- * The methods are:
- *
- * Servo - Class for manipulating servo motors connected to Arduino pins.
- *
- * attach(pin)           - Attach a servo motor to an i/o pin.
- * attach(pin, min, max) - Attach to a pin, setting min and max values in microseconds
- *                         Default min is 544, max is 2400
- *
- * write()               - Set the servo angle in degrees. (Invalid angles —over MIN_PULSE_WIDTH— are treated as µs.)
- * writeMicroseconds()   - Set the servo pulse width in microseconds.
- * move(pin, angle)      - Sequence of attach(pin), write(angle), safe_delay(servo_delay[servoIndex]).
- *                         With DEACTIVATE_SERVOS_AFTER_MOVE it detaches after servo_delay[servoIndex].
- * read()                - Get the last-written servo pulse width as an angle between 0 and 180.
- * readMicroseconds()    - Get the last-written servo pulse width in microseconds.
- * attached()            - Return true if a servo is attached.
- * detach()              - Stop an attached servo from pulsing its i/o pin.
- */
-
-#ifdef __AVR__
-
-#include "../../inc/MarlinConfig.h"
-
-#if HAS_SERVOS
-
-#include <avr/interrupt.h>
-
-#include "../shared/servo.h"
-#include "../shared/servo_private.h"
-
-static volatile int8_t Channel[_Nbr_16timers];              // counter for the servo being pulsed for each timer (or -1 if refresh interval)
-
-
-/************ static functions common to all instances ***********************/
-
-static inline void handle_interrupts(timer16_Sequence_t timer, volatile uint16_t* TCNTn, volatile uint16_t* OCRnA) {
-  if (Channel[timer] < 0)
-    *TCNTn = 0; // channel set to -1 indicated that refresh interval completed so reset the timer
-  else {
-    if (SERVO_INDEX(timer, Channel[timer]) < ServoCount && SERVO(timer, Channel[timer]).Pin.isActive)
-      extDigitalWrite(SERVO(timer, Channel[timer]).Pin.nbr, LOW); // pulse this channel low if activated
-  }
-
-  Channel[timer]++;    // increment to the next channel
-  if (SERVO_INDEX(timer, Channel[timer]) < ServoCount && Channel[timer] < SERVOS_PER_TIMER) {
-    *OCRnA = *TCNTn + SERVO(timer, Channel[timer]).ticks;
-    if (SERVO(timer, Channel[timer]).Pin.isActive)    // check if activated
-      extDigitalWrite(SERVO(timer, Channel[timer]).Pin.nbr, HIGH); // it's an active channel so pulse it high
-  }
-  else {
-    // finished all channels so wait for the refresh period to expire before starting over
-    if (((unsigned)*TCNTn) + 4 < usToTicks(REFRESH_INTERVAL))    // allow a few ticks to ensure the next OCR1A not missed
-      *OCRnA = (unsigned int)usToTicks(REFRESH_INTERVAL);
-    else
-      *OCRnA = *TCNTn + 4;  // at least REFRESH_INTERVAL has elapsed
-    Channel[timer] = -1; // this will get incremented at the end of the refresh period to start again at the first channel
-  }
-}
-
-#ifndef WIRING // Wiring pre-defines signal handlers so don't define any if compiling for the Wiring platform
-
-  // Interrupt handlers for Arduino
-  #ifdef _useTimer1
-    SIGNAL(TIMER1_COMPA_vect) { handle_interrupts(_timer1, &TCNT1, &OCR1A); }
-  #endif
-
-  #ifdef _useTimer3
-    SIGNAL(TIMER3_COMPA_vect) { handle_interrupts(_timer3, &TCNT3, &OCR3A); }
-  #endif
-
-  #ifdef _useTimer4
-    SIGNAL(TIMER4_COMPA_vect) { handle_interrupts(_timer4, &TCNT4, &OCR4A); }
-  #endif
-
-  #ifdef _useTimer5
-    SIGNAL(TIMER5_COMPA_vect) { handle_interrupts(_timer5, &TCNT5, &OCR5A); }
-  #endif
-
-#else // WIRING
-
-  // Interrupt handlers for Wiring
-  #ifdef _useTimer1
-    void Timer1Service() { handle_interrupts(_timer1, &TCNT1, &OCR1A); }
-  #endif
-  #ifdef _useTimer3
-    void Timer3Service() { handle_interrupts(_timer3, &TCNT3, &OCR3A); }
-  #endif
-
-#endif // WIRING
-
-/****************** end of static functions ******************************/
-
-void initISR(timer16_Sequence_t timer) {
-  #ifdef _useTimer1
-    if (timer == _timer1) {
-      TCCR1A = 0;             // normal counting mode
-      TCCR1B = _BV(CS11);     // set prescaler of 8
-      TCNT1 = 0;              // clear the timer count
-      #if defined(__AVR_ATmega8__) || defined(__AVR_ATmega128__)
-        SBI(TIFR, OCF1A);      // clear any pending interrupts;
-        SBI(TIMSK, OCIE1A);    // enable the output compare interrupt
-      #else
-        // here if not ATmega8 or ATmega128
-        SBI(TIFR1, OCF1A);     // clear any pending interrupts;
-        SBI(TIMSK1, OCIE1A);   // enable the output compare interrupt
-      #endif
-      #ifdef WIRING
-        timerAttach(TIMER1OUTCOMPAREA_INT, Timer1Service);
-      #endif
-    }
-  #endif
-
-  #ifdef _useTimer3
-    if (timer == _timer3) {
-      TCCR3A = 0;             // normal counting mode
-      TCCR3B = _BV(CS31);     // set prescaler of 8
-      TCNT3 = 0;              // clear the timer count
-      #ifdef __AVR_ATmega128__
-        SBI(TIFR, OCF3A);     // clear any pending interrupts;
-        SBI(ETIMSK, OCIE3A);  // enable the output compare interrupt
-      #else
-        SBI(TIFR3, OCF3A);   // clear any pending interrupts;
-        SBI(TIMSK3, OCIE3A); // enable the output compare interrupt
-      #endif
-      #ifdef WIRING
-        timerAttach(TIMER3OUTCOMPAREA_INT, Timer3Service);  // for Wiring platform only
-      #endif
-    }
-  #endif
-
-  #ifdef _useTimer4
-    if (timer == _timer4) {
-      TCCR4A = 0;             // normal counting mode
-      TCCR4B = _BV(CS41);     // set prescaler of 8
-      TCNT4 = 0;              // clear the timer count
-      TIFR4 = _BV(OCF4A);     // clear any pending interrupts;
-      TIMSK4 = _BV(OCIE4A);   // enable the output compare interrupt
-    }
-  #endif
-
-  #ifdef _useTimer5
-    if (timer == _timer5) {
-      TCCR5A = 0;             // normal counting mode
-      TCCR5B = _BV(CS51);     // set prescaler of 8
-      TCNT5 = 0;              // clear the timer count
-      TIFR5 = _BV(OCF5A);     // clear any pending interrupts;
-      TIMSK5 = _BV(OCIE5A);   // enable the output compare interrupt
-    }
-  #endif
-}
-
-void finISR(timer16_Sequence_t timer) {
-  // Disable use of the given timer
-  #ifdef WIRING
-    if (timer == _timer1) {
-      CBI(
-        #if defined(__AVR_ATmega1281__) || defined(__AVR_ATmega2561__)
-          TIMSK1
-        #else
-          TIMSK
-        #endif
-          , OCIE1A);    // disable timer 1 output compare interrupt
-      timerDetach(TIMER1OUTCOMPAREA_INT);
-    }
-    else if (timer == _timer3) {
-      CBI(
-        #if defined(__AVR_ATmega1281__) || defined(__AVR_ATmega2561__)
-          TIMSK3
-        #else
-          ETIMSK
-        #endif
-          , OCIE3A);    // disable the timer3 output compare A interrupt
-      timerDetach(TIMER3OUTCOMPAREA_INT);
-    }
-  #else // !WIRING
-    // For arduino - in future: call here to a currently undefined function to reset the timer
-    UNUSED(timer);
-  #endif
-}
-
-#endif // HAS_SERVOS
-
-#endif // __AVR__

Marlin/src/HAL/AVR/ServoTimers.h

@@ -1,93 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-/**
- * ServoTimers.h - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
- * Copyright (c) 2009 Michael Margolis.  All right reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-/**
- * Defines for 16 bit timers used with  Servo library
- *
- * If _useTimerX is defined then TimerX is a 16 bit timer on the current board
- * timer16_Sequence_t enumerates the sequence that the timers should be allocated
- * _Nbr_16timers indicates how many 16 bit timers are available.
- */
-
-/**
- * AVR Only definitions
- * --------------------
- */
-
-#define TRIM_DURATION           2   // compensation ticks to trim adjust for digitalWrite delays
-#define SERVO_TIMER_PRESCALER   8   // timer prescaler
-
-// Say which 16 bit timers can be used and in what order
-#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
-  //#define _useTimer1
-  #define _useTimer4
-  #if NUM_SERVOS > SERVOS_PER_TIMER
-    #define _useTimer3
-    #if !HAS_MOTOR_CURRENT_PWM && SERVOS > 2 * SERVOS_PER_TIMER
-      #define _useTimer5 // Timer 5 is used for motor current PWM and can't be used for servos.
-    #endif
-  #endif
-#elif defined(__AVR_ATmega32U4__)
-  #define _useTimer3
-#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__)
-  #define _useTimer3
-#elif defined(__AVR_ATmega128__) || defined(__AVR_ATmega1281__) || defined(__AVR_ATmega1284P__) || defined(__AVR_ATmega2561__)
-  #define _useTimer3
-#else
-  // everything else
-#endif
-
-typedef enum {
-  #ifdef _useTimer1
-    _timer1,
-  #endif
-  #ifdef _useTimer3
-    _timer3,
-  #endif
-  #ifdef _useTimer4
-    _timer4,
-  #endif
-  #ifdef _useTimer5
-    _timer5,
-  #endif
-  _Nbr_16timers
-} timer16_Sequence_t;

Marlin/src/HAL/AVR/eeprom.cpp

@@ -1,74 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#ifdef __AVR__
-
-#include "../../inc/MarlinConfig.h"
-
-#if EITHER(EEPROM_SETTINGS, SD_FIRMWARE_UPDATE)
-
-/**
- * PersistentStore for Arduino-style EEPROM interface
- * with implementations supplied by the framework.
- */
-
-#include "../shared/eeprom_api.h"
-
-#ifndef MARLIN_EEPROM_SIZE
-  #define MARLIN_EEPROM_SIZE size_t(E2END + 1)
-#endif
-size_t PersistentStore::capacity()    { return MARLIN_EEPROM_SIZE; }
-bool PersistentStore::access_start()  { return true; }
-bool PersistentStore::access_finish() { return true; }
-
-bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
-  while (size--) {
-    uint8_t * const p = (uint8_t * const)pos;
-    uint8_t v = *value;
-    // EEPROM has only ~100,000 write cycles,
-    // so only write bytes that have changed!
-    if (v != eeprom_read_byte(p)) {
-      eeprom_write_byte(p, v);
-      if (eeprom_read_byte(p) != v) {
-        SERIAL_ECHO_MSG(STR_ERR_EEPROM_WRITE);
-        return true;
-      }
-    }
-    crc16(crc, &v, 1);
-    pos++;
-    value++;
-  }
-  return false;
-}
-
-bool PersistentStore::read_data(int &pos, uint8_t *value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
-  do {
-    uint8_t c = eeprom_read_byte((uint8_t*)pos);
-    if (writing) *value = c;
-    crc16(crc, &c, 1);
-    pos++;
-    value++;
-  } while (--size);
-  return false;  // always assume success for AVR's
-}
-
-#endif // EEPROM_SETTINGS || SD_FIRMWARE_UPDATE
-#endif // __AVR__

Marlin/src/HAL/AVR/endstop_interrupts.h

@@ -1,261 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-/**
- * Endstop Interrupts
- *
- * Without endstop interrupts the endstop pins must be polled continually in
- * the temperature-ISR via endstops.update(), most of the time finding no change.
- * With this feature endstops.update() is called only when we know that at
- * least one endstop has changed state, saving valuable CPU cycles.
- *
- * This feature only works when all used endstop pins can generate either an
- * 'external interrupt' or a 'pin change interrupt'.
- *
- * Test whether pins issue interrupts on your board by flashing 'pin_interrupt_test.ino'.
- * (Located in Marlin/buildroot/share/pin_interrupt_test/pin_interrupt_test.ino)
- */
-
-#include "../../module/endstops.h"
-
-#include <stdint.h>
-
-// One ISR for all EXT-Interrupts
-void endstop_ISR() { endstops.update(); }
-
-/**
- * Patch for pins_arduino.h (...\Arduino\hardware\arduino\avr\variants\mega\pins_arduino.h)
- *
- * These macros for the Arduino MEGA do not include the two connected pins on Port J (D14, D15).
- * So we extend them here because these are the normal pins for Y_MIN and Y_MAX on RAMPS.
- * There are more PCI-enabled processor pins on Port J, but they are not connected to Arduino MEGA.
- */
-#if defined(ARDUINO_AVR_MEGA2560) || defined(ARDUINO_AVR_MEGA)
-
-  #define digitalPinHasPCICR(p)   (WITHIN(p, 10, 15) || WITHIN(p, 50, 53) || WITHIN(p, 62, 69))
-
-  #undef  digitalPinToPCICR
-  #define digitalPinToPCICR(p)    (digitalPinHasPCICR(p) ? (&PCICR) : nullptr)
-
-  #undef  digitalPinToPCICRbit
-  #define digitalPinToPCICRbit(p) (WITHIN(p, 10, 13) || WITHIN(p, 50, 53) ? 0 : \
-                                   WITHIN(p, 14, 15) ? 1 : \
-                                   WITHIN(p, 62, 69) ? 2 : \
-                                   0)
-
-  #undef  digitalPinToPCMSK
-  #define digitalPinToPCMSK(p)    (WITHIN(p, 10, 13) || WITHIN(p, 50, 53) ? (&PCMSK0) : \
-                                   WITHIN(p, 14, 15) ? (&PCMSK1) : \
-                                   WITHIN(p, 62, 69) ? (&PCMSK2) : \
-                                   nullptr)
-
-  #undef  digitalPinToPCMSKbit
-  #define digitalPinToPCMSKbit(p) (WITHIN(p, 10, 13) ? ((p) - 6) : \
-                                   (p) == 14 || (p) == 51 ? 2 : \
-                                   (p) == 15 || (p) == 52 ? 1 : \
-                                   (p) == 50 ? 3 : \
-                                   (p) == 53 ? 0 : \
-                                   WITHIN(p, 62, 69) ? ((p) - 62) : \
-                                   0)
-
-#elif defined(__AVR_ATmega164A__) || defined(__AVR_ATmega164P__) || defined(__AVR_ATmega324A__) || \
-      defined(__AVR_ATmega324P__) || defined(__AVR_ATmega324PA__) || defined(__AVR_ATmega324PB__) || \
-      defined(__AVR_ATmega644A__) || defined(__AVR_ATmega644P__) || defined(__AVR_ATmega1284__) || \
-      defined(__AVR_ATmega1284P__)
-
-  #define digitalPinHasPCICR(p)   WITHIN(p, 0, NUM_DIGITAL_PINS)
-
-#else
-
-  #error "Unsupported AVR variant!"
-
-#endif
-
-
-// Install Pin change interrupt for a pin. Can be called multiple times.
-void pciSetup(const int8_t pin) {
-  if (digitalPinHasPCICR(pin)) {
-    SBI(*digitalPinToPCMSK(pin), digitalPinToPCMSKbit(pin));  // enable pin
-    SBI(PCIFR, digitalPinToPCICRbit(pin)); // clear any outstanding interrupt
-    SBI(PCICR, digitalPinToPCICRbit(pin)); // enable interrupt for the group
-  }
-}
-
-// Handlers for pin change interrupts
-#ifdef PCINT0_vect
-  ISR(PCINT0_vect) { endstop_ISR(); }
-#endif
-
-#ifdef PCINT1_vect
-  ISR(PCINT1_vect, ISR_ALIASOF(PCINT0_vect));
-#endif
-
-#ifdef PCINT2_vect
-  ISR(PCINT2_vect, ISR_ALIASOF(PCINT0_vect));
-#endif
-
-#ifdef PCINT3_vect
-  ISR(PCINT3_vect, ISR_ALIASOF(PCINT0_vect));
-#endif
-
-void setup_endstop_interrupts() {
-  #define _ATTACH(P) attachInterrupt(digitalPinToInterrupt(P), endstop_ISR, CHANGE)
-  #if HAS_X_MAX
-    #if (digitalPinToInterrupt(X_MAX_PIN) != NOT_AN_INTERRUPT)
-      _ATTACH(X_MAX_PIN);
-    #else
-      static_assert(digitalPinHasPCICR(X_MAX_PIN), "X_MAX_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
-      pciSetup(X_MAX_PIN);
-    #endif
-  #endif
-  #if HAS_X_MIN
-    #if (digitalPinToInterrupt(X_MIN_PIN) != NOT_AN_INTERRUPT)
-      _ATTACH(X_MIN_PIN);
-    #else
-      static_assert(digitalPinHasPCICR(X_MIN_PIN), "X_MIN_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
-      pciSetup(X_MIN_PIN);
-    #endif
-  #endif
-  #if HAS_Y_MAX
-    #if (digitalPinToInterrupt(Y_MAX_PIN) != NOT_AN_INTERRUPT)
-      _ATTACH(Y_MAX_PIN);
-    #else
-      static_assert(digitalPinHasPCICR(Y_MAX_PIN), "Y_MAX_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
-      pciSetup(Y_MAX_PIN);
-    #endif
-  #endif
-  #if HAS_Y_MIN
-    #if (digitalPinToInterrupt(Y_MIN_PIN) != NOT_AN_INTERRUPT)
-      _ATTACH(Y_MIN_PIN);
-    #else
-      static_assert(digitalPinHasPCICR(Y_MIN_PIN), "Y_MIN_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
-      pciSetup(Y_MIN_PIN);
-    #endif
-  #endif
-  #if HAS_Z_MAX
-    #if (digitalPinToInterrupt(Z_MAX_PIN) != NOT_AN_INTERRUPT)
-      _ATTACH(Z_MAX_PIN);
-    #else
-      static_assert(digitalPinHasPCICR(Z_MAX_PIN), "Z_MAX_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
-      pciSetup(Z_MAX_PIN);
-    #endif
-  #endif
-  #if HAS_Z_MIN
-    #if (digitalPinToInterrupt(Z_MIN_PIN) != NOT_AN_INTERRUPT)
-      _ATTACH(Z_MIN_PIN);
-    #else
-      static_assert(digitalPinHasPCICR(Z_MIN_PIN), "Z_MIN_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
-      pciSetup(Z_MIN_PIN);
-    #endif
-  #endif
-  #if HAS_X2_MAX
-    #if (digitalPinToInterrupt(X2_MAX_PIN) != NOT_AN_INTERRUPT)
-      _ATTACH(X2_MAX_PIN);
-    #else
-      static_assert(digitalPinHasPCICR(X2_MAX_PIN), "X2_MAX_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
-      pciSetup(X2_MAX_PIN);
-    #endif
-  #endif
-  #if HAS_X2_MIN
-    #if (digitalPinToInterrupt(X2_MIN_PIN) != NOT_AN_INTERRUPT)
-      _ATTACH(X2_MIN_PIN);
-    #else
-      static_assert(digitalPinHasPCICR(X2_MIN_PIN), "X2_MIN_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
-      pciSetup(X2_MIN_PIN);
-    #endif
-  #endif
-  #if HAS_Y2_MAX
-    #if (digitalPinToInterrupt(Y2_MAX_PIN) != NOT_AN_INTERRUPT)
-      _ATTACH(Y2_MAX_PIN);
-    #else
-      static_assert(digitalPinHasPCICR(Y2_MAX_PIN), "Y2_MAX_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
-      pciSetup(Y2_MAX_PIN);
-    #endif
-  #endif
-  #if HAS_Y2_MIN
-    #if (digitalPinToInterrupt(Y2_MIN_PIN) != NOT_AN_INTERRUPT)
-      _ATTACH(Y2_MIN_PIN);
-    #else
-      static_assert(digitalPinHasPCICR(Y2_MIN_PIN), "Y2_MIN_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
-      pciSetup(Y2_MIN_PIN);
-    #endif
-  #endif
-  #if HAS_Z2_MAX
-    #if (digitalPinToInterrupt(Z2_MAX_PIN) != NOT_AN_INTERRUPT)
-      _ATTACH(Z2_MAX_PIN);
-    #else
-      static_assert(digitalPinHasPCICR(Z2_MAX_PIN), "Z2_MAX_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
-      pciSetup(Z2_MAX_PIN);
-    #endif
-  #endif
-  #if HAS_Z2_MIN
-    #if (digitalPinToInterrupt(Z2_MIN_PIN) != NOT_AN_INTERRUPT)
-      _ATTACH(Z2_MIN_PIN);
-    #else
-      static_assert(digitalPinHasPCICR(Z2_MIN_PIN), "Z2_MIN_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
-      pciSetup(Z2_MIN_PIN);
-    #endif
-  #endif
-  #if HAS_Z3_MAX
-    #if (digitalPinToInterrupt(Z3_MAX_PIN) != NOT_AN_INTERRUPT)
-      _ATTACH(Z3_MAX_PIN);
-    #else
-      static_assert(digitalPinHasPCICR(Z3_MAX_PIN), "Z3_MAX_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
-      pciSetup(Z3_MAX_PIN);
-    #endif
-  #endif
-  #if HAS_Z3_MIN
-    #if (digitalPinToInterrupt(Z3_MIN_PIN) != NOT_AN_INTERRUPT)
-      _ATTACH(Z3_MIN_PIN);
-    #else
-      static_assert(digitalPinHasPCICR(Z3_MIN_PIN), "Z3_MIN_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
-      pciSetup(Z3_MIN_PIN);
-    #endif
-  #endif
-  #if HAS_Z4_MAX
-    #if (digitalPinToInterrupt(Z4_MAX_PIN) != NOT_AN_INTERRUPT)
-      _ATTACH(Z4_MAX_PIN);
-    #else
-      static_assert(digitalPinHasPCICR(Z4_MAX_PIN), "Z4_MAX_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
-      pciSetup(Z4_MAX_PIN);
-    #endif
-  #endif
-  #if HAS_Z4_MIN
-    #if (digitalPinToInterrupt(Z4_MIN_PIN) != NOT_AN_INTERRUPT)
-      _ATTACH(Z4_MIN_PIN);
-    #else
-      static_assert(digitalPinHasPCICR(Z4_MIN_PIN), "Z4_MIN_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
-      pciSetup(Z4_MIN_PIN);
-    #endif
-  #endif
-  #if HAS_Z_MIN_PROBE_PIN
-    #if (digitalPinToInterrupt(Z_MIN_PROBE_PIN) != NOT_AN_INTERRUPT)
-      _ATTACH(Z_MIN_PROBE_PIN);
-    #else
-      static_assert(digitalPinHasPCICR(Z_MIN_PROBE_PIN), "Z_MIN_PROBE_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
-      pciSetup(Z_MIN_PROBE_PIN);
-    #endif
-  #endif
-
-  // If we arrive here without raising an assertion, each pin has either an EXT-interrupt or a PCI.
-}

Marlin/src/HAL/AVR/fast_pwm.cpp

@@ -1,282 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#ifdef __AVR__
-
-#include "../../inc/MarlinConfigPre.h"
-
-#if NEEDS_HARDWARE_PWM // Specific meta-flag for features that mandate PWM
-
-#include "HAL.h"
-
-struct Timer {
-  volatile uint8_t* TCCRnQ[3];  // max 3 TCCR registers per timer
-  volatile uint16_t* OCRnQ[3];  // max 3 OCR registers per timer
-  volatile uint16_t* ICRn;      // max 1 ICR register per timer
-  uint8_t n;                    // the timer number [0->5]
-  uint8_t q;                    // the timer output [0->2] (A->C)
-};
-
-/**
- * get_pwm_timer
- *  Get the timer information and register of the provided pin.
- *  Return a Timer struct containing this information.
- *  Used by set_pwm_frequency, set_pwm_duty
- */
-Timer get_pwm_timer(const pin_t pin) {
-  uint8_t q = 0;
-  switch (digitalPinToTimer(pin)) {
-    // Protect reserved timers (TIMER0 & TIMER1)
-    #ifdef TCCR0A
-      #if !AVR_AT90USB1286_FAMILY
-        case TIMER0A:
-      #endif
-      case TIMER0B:
-    #endif
-    #ifdef TCCR1A
-      case TIMER1A: case TIMER1B:
-    #endif
-                                        break;
-    #if defined(TCCR2) || defined(TCCR2A)
-      #ifdef TCCR2
-        case TIMER2: {
-          Timer timer = {
-            /*TCCRnQ*/  { &TCCR2, nullptr, nullptr },
-            /*OCRnQ*/   { (uint16_t*)&OCR2, nullptr, nullptr },
-            /*ICRn*/      nullptr,
-            /*n, q*/      2, 0
-          };
-        }
-      #elif defined(TCCR2A)
-        #if ENABLED(USE_OCR2A_AS_TOP)
-          case TIMER2A:   break; // protect TIMER2A
-          case TIMER2B: {
-            Timer timer = {
-              /*TCCRnQ*/  { &TCCR2A,  &TCCR2B,  nullptr },
-              /*OCRnQ*/   { (uint16_t*)&OCR2A, (uint16_t*)&OCR2B, nullptr },
-              /*ICRn*/      nullptr,
-              /*n, q*/      2, 1
-            };
-            return timer;
-          }
-        #else
-          case TIMER2B:   ++q;
-          case TIMER2A: {
-            Timer timer = {
-              /*TCCRnQ*/  { &TCCR2A,  &TCCR2B,  nullptr },
-              /*OCRnQ*/   { (uint16_t*)&OCR2A, (uint16_t*)&OCR2B, nullptr },
-              /*ICRn*/      nullptr,
-                            2, q
-            };
-            return timer;
-          }
-        #endif
-      #endif
-    #endif
-    #ifdef OCR3C
-      case TIMER3C:   ++q;
-      case TIMER3B:   ++q;
-      case TIMER3A: {
-        Timer timer = {
-          /*TCCRnQ*/  { &TCCR3A,  &TCCR3B,  &TCCR3C },
-          /*OCRnQ*/   { &OCR3A,   &OCR3B,   &OCR3C },
-          /*ICRn*/      &ICR3,
-          /*n, q*/      3, q
-        };
-        return timer;
-      }
-    #elif defined(OCR3B)
-      case TIMER3B:   ++q;
-      case TIMER3A: {
-        Timer timer = {
-          /*TCCRnQ*/  { &TCCR3A,  &TCCR3B,  nullptr },
-          /*OCRnQ*/   { &OCR3A,   &OCR3B,  nullptr },
-          /*ICRn*/      &ICR3,
-          /*n, q*/      3, q
-        };
-        return timer;
-      }
-    #endif
-    #ifdef TCCR4A
-      case TIMER4C:   ++q;
-      case TIMER4B:   ++q;
-      case TIMER4A: {
-        Timer timer = {
-          /*TCCRnQ*/  { &TCCR4A,  &TCCR4B,  &TCCR4C },
-          /*OCRnQ*/   { &OCR4A,   &OCR4B,   &OCR4C },
-          /*ICRn*/      &ICR4,
-          /*n, q*/      4, q
-        };
-        return timer;
-      }
-    #endif
-    #ifdef TCCR5A
-      case TIMER5C:   ++q;
-      case TIMER5B:   ++q;
-      case TIMER5A: {
-        Timer timer = {
-          /*TCCRnQ*/  { &TCCR5A,  &TCCR5B,  &TCCR5C },
-          /*OCRnQ*/   { &OCR5A,   &OCR5B,   &OCR5C },
-          /*ICRn*/      &ICR5,
-          /*n, q*/      5, q
-        };
-        return timer;
-      }
-    #endif
-  }
-  Timer timer = {
-      /*TCCRnQ*/  { nullptr, nullptr, nullptr },
-      /*OCRnQ*/   { nullptr, nullptr, nullptr },
-      /*ICRn*/      nullptr,
-                    0, 0
-  };
-  return timer;
-}
-
-void set_pwm_frequency(const pin_t pin, int f_desired) {
-  Timer timer = get_pwm_timer(pin);
-  if (timer.n == 0) return; // Don't proceed if protected timer or not recognised
-  uint16_t size;
-  if (timer.n == 2) size = 255; else size = 65535;
-
-  uint16_t res = 255;   // resolution (TOP value)
-  uint8_t j = 0;        // prescaler index
-  uint8_t wgm = 1;      // waveform generation mode
-
-  // Calculating the prescaler and resolution to use to achieve closest frequency
-  if (f_desired != 0) {
-    int f = (F_CPU) / (2 * 1024 * size) + 1; // Initialize frequency as lowest (non-zero) achievable
-    uint16_t prescaler[] = { 0, 1, 8, /*TIMER2 ONLY*/32, 64, /*TIMER2 ONLY*/128, 256, 1024 };
-
-    // loop over prescaler values
-    LOOP_S_L_N(i, 1, 8) {
-      uint16_t res_temp_fast = 255, res_temp_phase_correct = 255;
-      if (timer.n == 2) {
-        // No resolution calculation for TIMER2 unless enabled USE_OCR2A_AS_TOP
-        #if ENABLED(USE_OCR2A_AS_TOP)
-          const uint16_t rtf = (F_CPU) / (prescaler[i] * f_desired);
-          res_temp_fast = rtf - 1;
-          res_temp_phase_correct = rtf / 2;
-        #endif
-      }
-      else {
-        // Skip TIMER2 specific prescalers when not TIMER2
-        if (i == 3 || i == 5) continue;
-        const uint16_t rtf = (F_CPU) / (prescaler[i] * f_desired);
-        res_temp_fast = rtf - 1;
-        res_temp_phase_correct = rtf / 2;
-      }
-
-      LIMIT(res_temp_fast, 1U, size);
-      LIMIT(res_temp_phase_correct, 1U, size);
-      // Calculate frequencies of test prescaler and resolution values
-      const int f_temp_fast = (F_CPU) / (prescaler[i] * (1 + res_temp_fast)),
-                f_temp_phase_correct = (F_CPU) / (2 * prescaler[i] * res_temp_phase_correct),
-                f_diff = ABS(f - f_desired),
-                f_fast_diff = ABS(f_temp_fast - f_desired),
-                f_phase_diff = ABS(f_temp_phase_correct - f_desired);
-
-      // If FAST values are closest to desired f
-      if (f_fast_diff < f_diff && f_fast_diff <= f_phase_diff) {
-        // Remember this combination
-        f = f_temp_fast;
-        res = res_temp_fast;
-        j = i;
-        // Set the Wave Generation Mode to FAST PWM
-        if (timer.n == 2) {
-          wgm = (
-            #if ENABLED(USE_OCR2A_AS_TOP)
-              WGM2_FAST_PWM_OCR2A
-            #else
-              WGM2_FAST_PWM
-            #endif
-          );
-        }
-        else wgm = WGM_FAST_PWM_ICRn;
-      }
-      // If PHASE CORRECT values are closes to desired f
-      else if (f_phase_diff < f_diff) {
-        f = f_temp_phase_correct;
-        res = res_temp_phase_correct;
-        j = i;
-        // Set the Wave Generation Mode to PWM PHASE CORRECT
-        if (timer.n == 2) {
-          wgm = (
-            #if ENABLED(USE_OCR2A_AS_TOP)
-              WGM2_PWM_PC_OCR2A
-            #else
-              WGM2_PWM_PC
-            #endif
-          );
-        }
-        else wgm = WGM_PWM_PC_ICRn;
-      }
-    }
-  }
-  _SET_WGMnQ(timer.TCCRnQ, wgm);
-  _SET_CSn(timer.TCCRnQ, j);
-
-  if (timer.n == 2) {
-    #if ENABLED(USE_OCR2A_AS_TOP)
-      _SET_OCRnQ(timer.OCRnQ, 0, res);  // Set OCR2A value (TOP) = res
-    #endif
-  }
-  else
-    _SET_ICRn(timer.ICRn, res);         // Set ICRn value (TOP) = res
-}
-
-void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size/*=255*/, const bool invert/*=false*/) {
-  // If v is 0 or v_size (max), digitalWrite to LOW or HIGH.
-  // Note that digitalWrite also disables pwm output for us (sets COM bit to 0)
-  if (v == 0)
-    digitalWrite(pin, invert);
-  else if (v == v_size)
-    digitalWrite(pin, !invert);
-  else {
-    Timer timer = get_pwm_timer(pin);
-    if (timer.n == 0) return; // Don't proceed if protected timer or not recognised
-    // Set compare output mode to CLEAR -> SET or SET -> CLEAR (if inverted)
-    _SET_COMnQ(timer.TCCRnQ, (timer.q
-        #ifdef TCCR2
-          + (timer.q == 2) // COM20 is on bit 4 of TCCR2, thus requires q + 1 in the macro
-        #endif
-      ), COM_CLEAR_SET + invert
-    );
-
-    uint16_t top;
-    if (timer.n == 2) { // if TIMER2
-      top = (
-        #if ENABLED(USE_OCR2A_AS_TOP)
-          *timer.OCRnQ[0] // top = OCR2A
-        #else
-          255 // top = 0xFF (max)
-        #endif
-      );
-    }
-    else
-      top = *timer.ICRn; // top = ICRn
-
-    _SET_OCRnQ(timer.OCRnQ, timer.q, v * float(top) / float(v_size)); // Scale 8/16-bit v to top value
-  }
-}
-
-#endif // NEEDS_HARDWARE_PWM
-#endif // __AVR__

Marlin/src/HAL/AVR/fastio.cpp

@@ -1,288 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
-/**
- * Fast I/O for extended pins
- */
-
-#ifdef __AVR__
-
-#include "fastio.h"
-
-#ifdef FASTIO_EXT_START
-
-#include "../shared/Marduino.h"
-
-#define _IS_EXT(P) WITHIN(P, FASTIO_EXT_START, FASTIO_EXT_END)
-
-void extDigitalWrite(const int8_t pin, const uint8_t state) {
-  #define _WCASE(N) case N: WRITE(N, state); break
-  switch (pin) {
-    default: digitalWrite(pin, state);
-    #if _IS_EXT(70)
-      _WCASE(70);
-    #endif
-    #if _IS_EXT(71)
-      _WCASE(71);
-    #endif
-    #if _IS_EXT(72)
-      _WCASE(72);
-    #endif
-    #if _IS_EXT(73)
-      _WCASE(73);
-    #endif
-    #if _IS_EXT(74)
-      _WCASE(74);
-    #endif
-    #if _IS_EXT(75)
-      _WCASE(75);
-    #endif
-    #if _IS_EXT(76)
-      _WCASE(76);
-    #endif
-    #if _IS_EXT(77)
-      _WCASE(77);
-    #endif
-    #if _IS_EXT(78)
-      _WCASE(78);
-    #endif
-    #if _IS_EXT(79)
-      _WCASE(79);
-    #endif
-    #if _IS_EXT(80)
-      _WCASE(80);
-    #endif
-    #if _IS_EXT(81)
-      _WCASE(81);
-    #endif
-    #if _IS_EXT(82)
-      _WCASE(82);
-    #endif
-    #if _IS_EXT(83)
-      _WCASE(83);
-    #endif
-    #if _IS_EXT(84)
-      _WCASE(84);
-    #endif
-    #if _IS_EXT(85)
-      _WCASE(85);
-    #endif
-    #if _IS_EXT(86)
-      _WCASE(86);
-    #endif
-    #if _IS_EXT(87)
-      _WCASE(87);
-    #endif
-    #if _IS_EXT(88)
-      _WCASE(88);
-    #endif
-    #if _IS_EXT(89)
-      _WCASE(89);
-    #endif
-    #if _IS_EXT(90)
-      _WCASE(90);
-    #endif
-    #if _IS_EXT(91)
-      _WCASE(91);
-    #endif
-    #if _IS_EXT(92)
-      _WCASE(92);
-    #endif
-    #if _IS_EXT(93)
-      _WCASE(93);
-    #endif
-    #if _IS_EXT(94)
-      _WCASE(94);
-    #endif
-    #if _IS_EXT(95)
-      _WCASE(95);
-    #endif
-    #if _IS_EXT(96)
-      _WCASE(96);
-    #endif
-    #if _IS_EXT(97)
-      _WCASE(97);
-    #endif
-    #if _IS_EXT(98)
-      _WCASE(98);
-    #endif
-    #if _IS_EXT(99)
-      _WCASE(99);
-    #endif
-    #if _IS_EXT(100)
-      _WCASE(100);
-    #endif
-  }
-}
-
-uint8_t extDigitalRead(const int8_t pin) {
-  #define _RCASE(N) case N: return READ(N)
-  switch (pin) {
-    default: return digitalRead(pin);
-    #if _IS_EXT(70)
-      _RCASE(70);
-    #endif
-    #if _IS_EXT(71)
-      _RCASE(71);
-    #endif
-    #if _IS_EXT(72)
-      _RCASE(72);
-    #endif
-    #if _IS_EXT(73)
-      _RCASE(73);
-    #endif
-    #if _IS_EXT(74)
-      _RCASE(74);
-    #endif
-    #if _IS_EXT(75)
-      _RCASE(75);
-    #endif
-    #if _IS_EXT(76)
-      _RCASE(76);
-    #endif
-    #if _IS_EXT(77)
-      _RCASE(77);
-    #endif
-    #if _IS_EXT(78)
-      _RCASE(78);
-    #endif
-    #if _IS_EXT(79)
-      _RCASE(79);
-    #endif
-    #if _IS_EXT(80)
-      _RCASE(80);
-    #endif
-    #if _IS_EXT(81)
-      _RCASE(81);
-    #endif
-    #if _IS_EXT(82)
-      _RCASE(82);
-    #endif
-    #if _IS_EXT(83)
-      _RCASE(83);
-    #endif
-    #if _IS_EXT(84)
-      _RCASE(84);
-    #endif
-    #if _IS_EXT(85)
-      _RCASE(85);
-    #endif
-    #if _IS_EXT(86)
-      _RCASE(86);
-    #endif
-    #if _IS_EXT(87)
-      _RCASE(87);
-    #endif
-    #if _IS_EXT(88)
-      _RCASE(88);
-    #endif
-    #if _IS_EXT(89)
-      _RCASE(89);
-    #endif
-    #if _IS_EXT(90)
-      _RCASE(90);
-    #endif
-    #if _IS_EXT(91)
-      _RCASE(91);
-    #endif
-    #if _IS_EXT(92)
-      _RCASE(92);
-    #endif
-    #if _IS_EXT(93)
-      _RCASE(93);
-    #endif
-    #if _IS_EXT(94)
-      _RCASE(94);
-    #endif
-    #if _IS_EXT(95)
-      _RCASE(95);
-    #endif
-    #if _IS_EXT(96)
-      _RCASE(96);
-    #endif
-    #if _IS_EXT(97)
-      _RCASE(97);
-    #endif
-    #if _IS_EXT(98)
-      _RCASE(98);
-    #endif
-    #if _IS_EXT(99)
-      _RCASE(99);
-    #endif
-    #if _IS_EXT(100)
-      _RCASE(100);
-    #endif
-  }
-}
-
-#if 0
-/**
- * Set Timer 5 PWM frequency in Hz, from 3.8Hz up to ~16MHz
- * with a minimum resolution of 100 steps.
- *
- * DC values -1.0 to 1.0. Negative duty cycle inverts the pulse.
- */
-uint16_t set_pwm_frequency_hz(const float &hz, const float dca, const float dcb, const float dcc) {
-  float count = 0;
-  if (hz > 0 && (dca || dcb || dcc)) {
-    count = float(F_CPU) / hz;            // 1x prescaler, TOP for 16MHz base freq.
-    uint16_t prescaler;                   // Range of 30.5Hz (65535) 64.5KHz (>31)
-
-         if (count >= 255. * 256.) { prescaler = 1024; SET_CS(5, PRESCALER_1024); }
-    else if (count >= 255. * 64.)  { prescaler = 256;  SET_CS(5,  PRESCALER_256); }
-    else if (count >= 255. * 8.)   { prescaler = 64;   SET_CS(5,   PRESCALER_64); }
-    else if (count >= 255.)        { prescaler = 8;    SET_CS(5,    PRESCALER_8); }
-    else                           { prescaler = 1;    SET_CS(5,    PRESCALER_1); }
-
-    count /= float(prescaler);
-    const float pwm_top = round(count);   // Get the rounded count
-
-    ICR5 = (uint16_t)pwm_top - 1;         // Subtract 1 for TOP
-    OCR5A = pwm_top * ABS(dca);          // Update and scale DCs
-    OCR5B = pwm_top * ABS(dcb);
-    OCR5C = pwm_top * ABS(dcc);
-    _SET_COM(5, A, dca ? (dca < 0 ? COM_SET_CLEAR : COM_CLEAR_SET) : COM_NORMAL); // Set compare modes
-    _SET_COM(5, B, dcb ? (dcb < 0 ? COM_SET_CLEAR : COM_CLEAR_SET) : COM_NORMAL);
-    _SET_COM(5, C, dcc ? (dcc < 0 ? COM_SET_CLEAR : COM_CLEAR_SET) : COM_NORMAL);
-
-    SET_WGM(5, FAST_PWM_ICRn);            // Fast PWM with ICR5 as TOP
-
-    //SERIAL_ECHOLNPGM("Timer 5 Settings:");
-    //SERIAL_ECHOLNPAIR("  Prescaler=", prescaler);
-    //SERIAL_ECHOLNPAIR("        TOP=", ICR5);
-    //SERIAL_ECHOLNPAIR("      OCR5A=", OCR5A);
-    //SERIAL_ECHOLNPAIR("      OCR5B=", OCR5B);
-    //SERIAL_ECHOLNPAIR("      OCR5C=", OCR5C);
-  }
-  else {
-    // Restore the default for Timer 5
-    SET_WGM(5, PWM_PC_8);                 // PWM 8-bit (Phase Correct)
-    SET_COMS(5, NORMAL, NORMAL, NORMAL);  // Do nothing
-    SET_CS(5, PRESCALER_64);              // 16MHz / 64 = 250KHz
-    OCR5A = OCR5B = OCR5C = 0;
-  }
-  return round(count);
-}
-#endif
-
-#endif // FASTIO_EXT_START
-#endif // __AVR__

Marlin/src/HAL/AVR/fastio.h

@@ -1,373 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-/**
- * Fast I/O Routines for AVR
- * Use direct port manipulation to save scads of processor time.
- * Contributed by Triffid_Hunter and modified by Kliment, thinkyhead, Bob-the-Kuhn, et.al.
- */
-
-#include <avr/io.h>
-
-#if defined(__AVR_AT90USB1287__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1286P__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB646P__) || defined(__AVR_AT90USB647__)
-  #define AVR_AT90USB1286_FAMILY 1
-#elif defined(__AVR_ATmega644__) || defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644PA__) || defined(__AVR_ATmega1284P__)
-  #define AVR_ATmega1284_FAMILY 1
-#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
-  #define AVR_ATmega2560_FAMILY 1
-#elif defined(__AVR_ATmega1281__) || defined(__AVR_ATmega2561__)
-  #define AVR_ATmega2561_FAMILY 1
-#elif defined(__AVR_ATmega168__) || defined(__AVR_ATmega328__) || defined(__AVR_ATmega328P__)
-  #define AVR_ATmega328_FAMILY 1
-#endif
-
-/**
- * Include Ports and Functions
- */
-#if AVR_ATmega328_FAMILY
-  #include "fastio/fastio_168.h"
-#elif AVR_ATmega1284_FAMILY
-  #include "fastio/fastio_644.h"
-#elif AVR_ATmega2560_FAMILY
-  #include "fastio/fastio_1280.h"
-#elif AVR_AT90USB1286_FAMILY
-  #include "fastio/fastio_AT90USB.h"
-#elif AVR_ATmega2561_FAMILY
-  #include "fastio/fastio_1281.h"
-#else
-  #error "No FastIO definition for the selected AVR Board."
-#endif
-
-/**
- * Magic I/O routines
- *
- * Now you can simply SET_OUTPUT(PIN); WRITE(PIN, HIGH); WRITE(PIN, LOW);
- *
- * Why double up on these macros? see https://gcc.gnu.org/onlinedocs/cpp/Stringification.html
- */
-
-#define _READ(IO)             TEST(DIO ## IO ## _RPORT, DIO ## IO ## _PIN)
-
-#define _WRITE_NC(IO,V) do{ \
-  if (V) SBI(DIO ## IO ## _WPORT, DIO ## IO ## _PIN); \
-  else   CBI(DIO ## IO ## _WPORT, DIO ## IO ## _PIN); \
-}while(0)
-
-#define _WRITE_C(IO,V) do{ \
-  uint8_t port_bits = DIO ## IO ## _WPORT;                  /* Get a mask from the current port bits */ \
-  if (V) port_bits = ~port_bits;                            /* For setting bits, invert the mask */ \
-  DIO ## IO ## _RPORT = port_bits & _BV(DIO ## IO ## _PIN); /* Atomically toggle the output port bits */ \
-}while(0)
-
-#define _WRITE(IO,V)          do{ if (&(DIO ## IO ## _RPORT) < (uint8_t*)0x100) _WRITE_NC(IO,V); else _WRITE_C(IO,V); }while(0)
-
-#define _TOGGLE(IO)           (DIO ## IO ## _RPORT = _BV(DIO ## IO ## _PIN))
-
-#define _SET_INPUT(IO)        CBI(DIO ## IO ## _DDR, DIO ## IO ## _PIN)
-#define _SET_OUTPUT(IO)       SBI(DIO ## IO ## _DDR, DIO ## IO ## _PIN)
-
-#define _IS_INPUT(IO)         !TEST(DIO ## IO ## _DDR, DIO ## IO ## _PIN)
-#define _IS_OUTPUT(IO)        TEST(DIO ## IO ## _DDR, DIO ## IO ## _PIN)
-
-// digitalRead/Write wrappers
-#ifdef FASTIO_EXT_START
-  void extDigitalWrite(const int8_t pin, const uint8_t state);
-  uint8_t extDigitalRead(const int8_t pin);
-#else
-  #define extDigitalWrite(IO,V) digitalWrite(IO,V)
-  #define extDigitalRead(IO)    digitalRead(IO)
-#endif
-
-#define READ(IO)              _READ(IO)
-#define WRITE(IO,V)           _WRITE(IO,V)
-#define TOGGLE(IO)            _TOGGLE(IO)
-
-#define SET_INPUT(IO)         _SET_INPUT(IO)
-#define SET_INPUT_PULLUP(IO)  do{ _SET_INPUT(IO); _WRITE(IO, HIGH); }while(0)
-#define SET_INPUT_PULLDOWN    SET_INPUT
-#define SET_OUTPUT(IO)        _SET_OUTPUT(IO)
-#define SET_PWM               SET_OUTPUT
-
-#define IS_INPUT(IO)          _IS_INPUT(IO)
-#define IS_OUTPUT(IO)         _IS_OUTPUT(IO)
-
-#define OUT_WRITE(IO,V)       do{ SET_OUTPUT(IO); WRITE(IO,V); }while(0)
-
-/**
- * Timer and Interrupt Control
- */
-
-// Waveform Generation Modes
-enum WaveGenMode : char {
-  WGM_NORMAL,          //  0
-  WGM_PWM_PC_8,        //  1
-  WGM_PWM_PC_9,        //  2
-  WGM_PWM_PC_10,       //  3
-  WGM_CTC_OCRnA,       //  4  COM OCnx
-  WGM_FAST_PWM_8,      //  5
-  WGM_FAST_PWM_9,      //  6
-  WGM_FAST_PWM_10,     //  7
-  WGM_PWM_PC_FC_ICRn,  //  8
-  WGM_PWM_PC_FC_OCRnA, //  9  COM OCnA
-  WGM_PWM_PC_ICRn,     // 10
-  WGM_PWM_PC_OCRnA,    // 11  COM OCnA
-  WGM_CTC_ICRn,        // 12  COM OCnx
-  WGM_reserved,        // 13
-  WGM_FAST_PWM_ICRn,   // 14  COM OCnA
-  WGM_FAST_PWM_OCRnA   // 15  COM OCnA
-};
-
-// Wavefore Generation Modes (Timer 2 only)
-enum WaveGenMode2 : char {
-  WGM2_NORMAL,          // 0
-  WGM2_PWM_PC,          // 1
-  WGM2_CTC_OCR2A,       // 2
-  WGM2_FAST_PWM,        // 3
-  WGM2_reserved_1,      // 4
-  WGM2_PWM_PC_OCR2A,    // 5
-  WGM2_reserved_2,      // 6
-  WGM2_FAST_PWM_OCR2A,  // 7
-};
-
-// Compare Modes
-enum CompareMode : char {
-  COM_NORMAL,          //  0
-  COM_TOGGLE,          //  1  Non-PWM: OCnx ... Both PWM (WGM 9,11,14,15): OCnA only ... else NORMAL
-  COM_CLEAR_SET,       //  2  Non-PWM: OCnx ... Fast PWM: OCnx/Bottom ... PF-FC: OCnx Up/Down
-  COM_SET_CLEAR        //  3  Non-PWM: OCnx ... Fast PWM: OCnx/Bottom ... PF-FC: OCnx Up/Down
-};
-
-// Clock Sources
-enum ClockSource : char {
-  CS_NONE,             //  0
-  CS_PRESCALER_1,      //  1
-  CS_PRESCALER_8,      //  2
-  CS_PRESCALER_64,     //  3
-  CS_PRESCALER_256,    //  4
-  CS_PRESCALER_1024,   //  5
-  CS_EXT_FALLING,      //  6
-  CS_EXT_RISING        //  7
-};
-
-// Clock Sources (Timer 2 only)
-enum ClockSource2 : char {
-  CS2_NONE,            //  0
-  CS2_PRESCALER_1,     //  1
-  CS2_PRESCALER_8,     //  2
-  CS2_PRESCALER_32,    //  3
-  CS2_PRESCALER_64,    //  4
-  CS2_PRESCALER_128,   //  5
-  CS2_PRESCALER_256,   //  6
-  CS2_PRESCALER_1024   //  7
-};
-
-// Get interrupt bits in an orderly way
-// Ex: cs = GET_CS(0); coma1 = GET_COM(A,1);
-#define GET_WGM(T)   (((TCCR##T##A >> WGM##T##0) & 0x3) | ((TCCR##T##B >> WGM##T##2 << 2) & 0xC))
-#define GET_CS(T)    ((TCCR##T##B >> CS##T##0) & 0x7)
-#define GET_COM(T,Q) ((TCCR##T##Q >> COM##T##Q##0) & 0x3)
-#define GET_COMA(T)  GET_COM(T,A)
-#define GET_COMB(T)  GET_COM(T,B)
-#define GET_COMC(T)  GET_COM(T,C)
-#define GET_ICNC(T)  (!!(TCCR##T##B & _BV(ICNC##T)))
-#define GET_ICES(T)  (!!(TCCR##T##B & _BV(ICES##T)))
-#define GET_FOC(T,Q) (!!(TCCR##T##C & _BV(FOC##T##Q)))
-#define GET_FOCA(T)  GET_FOC(T,A)
-#define GET_FOCB(T)  GET_FOC(T,B)
-#define GET_FOCC(T)  GET_FOC(T,C)
-
-// Set Wave Generation Mode bits
-// Ex: SET_WGM(5,CTC_ICRn);
-#define _SET_WGM(T,V) do{ \
-    TCCR##T##A = (TCCR##T##A & ~(0x3 << WGM##T##0)) | (( int(V)       & 0x3) << WGM##T##0); \
-    TCCR##T##B = (TCCR##T##B & ~(0x3 << WGM##T##2)) | (((int(V) >> 2) & 0x3) << WGM##T##2); \
-  }while(0)
-#define SET_WGM(T,V) _SET_WGM(T,WGM_##V)
-// Runtime (see set_pwm_frequency):
-#define _SET_WGMnQ(TCCRnQ, V) do{ \
-    *(TCCRnQ)[0] = (*(TCCRnQ)[0] & ~(0x3 << 0)) | (( int(V)       & 0x3) << 0); \
-    *(TCCRnQ)[1] = (*(TCCRnQ)[1] & ~(0x3 << 3)) | (((int(V) >> 2) & 0x3) << 3); \
-  }while(0)
-
-// Set Clock Select bits
-// Ex: SET_CS3(PRESCALER_64);
-#define _SET_CS(T,V) (TCCR##T##B = (TCCR##T##B & ~(0x7 << CS##T##0)) | ((int(V) & 0x7) << CS##T##0))
-#define _SET_CS0(V) _SET_CS(0,V)
-#define _SET_CS1(V) _SET_CS(1,V)
-#ifdef TCCR2
-  #define _SET_CS2(V) (TCCR2 = (TCCR2 & ~(0x7 << CS20)) | (int(V) << CS20))
-#else
-  #define _SET_CS2(V) _SET_CS(2,V)
-#endif
-#define _SET_CS3(V) _SET_CS(3,V)
-#define _SET_CS4(V) _SET_CS(4,V)
-#define _SET_CS5(V) _SET_CS(5,V)
-#define SET_CS0(V) _SET_CS0(CS_##V)
-#define SET_CS1(V) _SET_CS1(CS_##V)
-#ifdef TCCR2
-  #define SET_CS2(V) _SET_CS2(CS2_##V)
-#else
-  #define SET_CS2(V) _SET_CS2(CS_##V)
-#endif
-#define SET_CS3(V) _SET_CS3(CS_##V)
-#define SET_CS4(V) _SET_CS4(CS_##V)
-#define SET_CS5(V) _SET_CS5(CS_##V)
-#define SET_CS(T,V) SET_CS##T(V)
-// Runtime (see set_pwm_frequency)
-#define _SET_CSn(TCCRnQ, V) do{ \
-    (*(TCCRnQ)[1] = (*(TCCRnQ[1]) & ~(0x7 << 0)) | ((int(V) & 0x7) << 0)); \
-  }while(0)
-
-// Set Compare Mode bits
-// Ex: SET_COMS(4,CLEAR_SET,CLEAR_SET,CLEAR_SET);
-#define _SET_COM(T,Q,V) (TCCR##T##Q = (TCCR##T##Q & ~(0x3 << COM##T##Q##0)) | (int(V) << COM##T##Q##0))
-#define SET_COM(T,Q,V) _SET_COM(T,Q,COM_##V)
-#define SET_COMA(T,V) SET_COM(T,A,V)
-#define SET_COMB(T,V) SET_COM(T,B,V)
-#define SET_COMC(T,V) SET_COM(T,C,V)
-#define SET_COMS(T,V1,V2,V3) do{ SET_COMA(T,V1); SET_COMB(T,V2); SET_COMC(T,V3); }while(0)
-// Runtime (see set_pwm_duty)
-#define _SET_COMnQ(TCCRnQ, Q, V) do{ \
-    (*(TCCRnQ)[0] = (*(TCCRnQ)[0] & ~(0x3 << (6-2*(Q)))) | (int(V) << (6-2*(Q)))); \
-  }while(0)
-
-// Set OCRnQ register
-// Runtime (see set_pwm_duty):
-#define _SET_OCRnQ(OCRnQ, Q, V) do{ \
-    (*(OCRnQ)[(Q)] = (0x0000) | (int(V) & 0xFFFF)); \
-  }while(0)
-
-// Set ICRn register (one per timer)
-// Runtime (see set_pwm_frequency)
-#define _SET_ICRn(ICRn, V) do{ \
-    (*(ICRn) = (0x0000) | (int(V) & 0xFFFF)); \
-  }while(0)
-
-// Set Noise Canceler bit
-// Ex: SET_ICNC(2,1)
-#define SET_ICNC(T,V) (TCCR##T##B = (V) ? TCCR##T##B | _BV(ICNC##T) : TCCR##T##B & ~_BV(ICNC##T))
-
-// Set Input Capture Edge Select bit
-// Ex: SET_ICES(5,0)
-#define SET_ICES(T,V) (TCCR##T##B = (V) ? TCCR##T##B | _BV(ICES##T) : TCCR##T##B & ~_BV(ICES##T))
-
-// Set Force Output Compare bit
-// Ex: SET_FOC(3,A,1)
-#define SET_FOC(T,Q,V) (TCCR##T##C = (V) ? TCCR##T##C | _BV(FOC##T##Q) : TCCR##T##C & ~_BV(FOC##T##Q))
-#define SET_FOCA(T,V) SET_FOC(T,A,V)
-#define SET_FOCB(T,V) SET_FOC(T,B,V)
-#define SET_FOCC(T,V) SET_FOC(T,C,V)
-
-#if 0
-
-/**
- * PWM availability macros
- */
-
-// Determine which harware PWMs are already in use
-#define _PWM_CHK_FAN_B(P) (P == E0_AUTO_FAN_PIN || P == E1_AUTO_FAN_PIN || P == E2_AUTO_FAN_PIN || P == E3_AUTO_FAN_PIN || P == E4_AUTO_FAN_PIN || P == E5_AUTO_FAN_PIN || P == E6_AUTO_FAN_PIN || P == E7_AUTO_FAN_PIN || P == CHAMBER_AUTO_FAN_PIN)
-#if PIN_EXISTS(CONTROLLER_FAN)
-  #define PWM_CHK_FAN_B(P) (_PWM_CHK_FAN_B(P) || P == CONTROLLER_FAN_PIN)
-#else
-  #define PWM_CHK_FAN_B(P) _PWM_CHK_FAN_B(P)
-#endif
-
-#if ANY_PIN(FAN, FAN1, FAN2, FAN3, FAN4, FAN5, FAN6, FAN7)
-  #if PIN_EXISTS(FAN7)
-    #define PWM_CHK_FAN_A(P) (P == FAN0_PIN || P == FAN1_PIN || P == FAN2_PIN || P == FAN3_PIN || P == FAN4_PIN || P == FAN5_PIN || P == FAN6_PIN || P == FAN7_PIN)
-  #elif PIN_EXISTS(FAN6)
-    #define PWM_CHK_FAN_A(P) (P == FAN0_PIN || P == FAN1_PIN || P == FAN2_PIN || P == FAN3_PIN || P == FAN4_PIN || P == FAN5_PIN || P == FAN6_PIN)
-  #elif PIN_EXISTS(FAN5)
-    #define PWM_CHK_FAN_A(P) (P == FAN0_PIN || P == FAN1_PIN || P == FAN2_PIN || P == FAN3_PIN || P == FAN4_PIN || P == FAN5_PIN)
-  #elif PIN_EXISTS(FAN4)
-    #define PWM_CHK_FAN_A(P) (P == FAN0_PIN || P == FAN1_PIN || P == FAN2_PIN || P == FAN3_PIN || P == FAN4_PIN)
-  #elif PIN_EXISTS(FAN3)
-    #define PWM_CHK_FAN_A(P) (P == FAN0_PIN || P == FAN1_PIN || P == FAN2_PIN || P == FAN3_PIN)
-  #elif PIN_EXISTS(FAN2)
-    #define PWM_CHK_FAN_A(P) (P == FAN0_PIN || P == FAN1_PIN || P == FAN2_PIN)
-  #elif PIN_EXISTS(FAN1)
-    #define PWM_CHK_FAN_A(P) (P == FAN0_PIN || P == FAN1_PIN)
-  #else
-    #define PWM_CHK_FAN_A(P) (P == FAN0_PIN)
-  #endif
-#else
-  #define PWM_CHK_FAN_A(P) false
-#endif
-
-#if HAS_MOTOR_CURRENT_PWM
-  #if PIN_EXISTS(MOTOR_CURRENT_PWM_XY)
-    #define PWM_CHK_MOTOR_CURRENT(P) (P == MOTOR_CURRENT_PWM_E || P == MOTOR_CURRENT_PWM_Z || P == MOTOR_CURRENT_PWM_XY)
-  #elif PIN_EXISTS(MOTOR_CURRENT_PWM_Z)
-    #define PWM_CHK_MOTOR_CURRENT(P) (P == MOTOR_CURRENT_PWM_E || P == MOTOR_CURRENT_PWM_Z)
-  #else
-    #define PWM_CHK_MOTOR_CURRENT(P) (P == MOTOR_CURRENT_PWM_E)
-  #endif
-#else
-  #define PWM_CHK_MOTOR_CURRENT(P) false
-#endif
-
-#ifdef NUM_SERVOS
-  #if AVR_ATmega2560_FAMILY
-    #define PWM_CHK_SERVO(P) (P == 5 || (NUM_SERVOS > 12 && P == 6) || (NUM_SERVOS > 24 && P == 46))  // PWMS 3A, 4A & 5A
-  #elif AVR_ATmega2561_FAMILY
-    #define PWM_CHK_SERVO(P)   (P == 5)  // PWM3A
-  #elif AVR_ATmega1284_FAMILY
-    #define PWM_CHK_SERVO(P)   false
-  #elif AVR_AT90USB1286_FAMILY
-    #define PWM_CHK_SERVO(P)   (P == 16) // PWM3A
-  #elif AVR_ATmega328_FAMILY
-    #define PWM_CHK_SERVO(P)   false
-  #endif
-#else
-  #define PWM_CHK_SERVO(P) false
-#endif
-
-#if ENABLED(BARICUDA)
-  #if HAS_HEATER_1 && HAS_HEATER_2
-    #define PWM_CHK_HEATER(P) (P == HEATER_1_PIN || P == HEATER_2_PIN)
-  #elif HAS_HEATER_1
-    #define PWM_CHK_HEATER(P) (P == HEATER_1_PIN)
-  #endif
-#else
-    #define PWM_CHK_HEATER(P) false
-#endif
-
-#define PWM_CHK(P) (PWM_CHK_HEATER(P) || PWM_CHK_SERVO(P) || PWM_CHK_MOTOR_CURRENT(P) || PWM_CHK_FAN_A(P) || PWM_CHK_FAN_B(P))
-
-#endif // PWM_CHK is not used in Marlin
-
-// define which hardware PWMs are available for the current CPU
-// all timer 1 PWMS deleted from this list because they are never available
-#if AVR_ATmega2560_FAMILY
-  #define PWM_PIN(P)  ((P >= 2 && P <= 10) || P == 13 || P == 44 || P == 45 || P == 46)
-#elif AVR_ATmega2561_FAMILY
-  #define PWM_PIN(P)  ((P >= 2 && P <= 6) || P == 9)
-#elif AVR_ATmega1284_FAMILY
-  #define PWM_PIN(P)  (P == 3 || P == 4 || P == 14 || P == 15)
-#elif AVR_AT90USB1286_FAMILY
-  #define PWM_PIN(P)  (P == 0 || P == 1 || P == 14 || P == 15 || P == 16 || P == 24)
-#elif AVR_ATmega328_FAMILY
-  #define PWM_PIN(P)  (P == 3 || P == 5 || P == 6 || P == 11)
-#else
-  #error "unknown CPU"
-#endif

Marlin/src/HAL/AVR/inc/Conditionals_LCD.h

@@ -1,26 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-#if HAS_SPI_TFT || HAS_FSMC_TFT
-  #error "Sorry! TFT displays are not available for HAL/AVR."
-#endif

Marlin/src/HAL/AVR/inc/Conditionals_adv.h

@@ -1,22 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once

Marlin/src/HAL/AVR/inc/Conditionals_post.h

@@ -1,22 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once

Marlin/src/HAL/AVR/inc/SanityCheck.h

@@ -1,58 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-/**
- * Test AVR-specific configuration values for errors at compile-time.
- */
-
-/**
- * Checks for FAST PWM
- */
-#if ENABLED(FAST_PWM_FAN) && (ENABLED(USE_OCR2A_AS_TOP) && defined(TCCR2))
-  #error "USE_OCR2A_AS_TOP does not apply to devices with a single output TIMER2"
-#endif
-
-/**
- * Sanity checks for Spindle / Laser PWM
- */
-#if ENABLED(SPINDLE_LASER_PWM)
-  #include "../ServoTimers.h"   // Needed to check timer availability (_useTimer3)
-  #if SPINDLE_LASER_PWM_PIN == 4 || WITHIN(SPINDLE_LASER_PWM_PIN, 11, 13)
-    #error "Counter/Timer for SPINDLE_LASER_PWM_PIN is used by a system interrupt."
-  #elif NUM_SERVOS > 0 && defined(_useTimer3) && (WITHIN(SPINDLE_LASER_PWM_PIN, 2, 3) || SPINDLE_LASER_PWM_PIN == 5)
-    #error "Counter/Timer for SPINDLE_LASER_PWM_PIN is used by the servo system."
-  #endif
-#elif defined(SPINDLE_LASER_FREQUENCY)
-  #error "SPINDLE_LASER_FREQUENCY requires SPINDLE_LASER_PWM."
-#endif
-
-/**
- * The Trinamic library includes SoftwareSerial.h, leading to a compile error.
- */
-#if BOTH(HAS_TRINAMIC_CONFIG, ENDSTOP_INTERRUPTS_FEATURE)
-  #error "TMCStepper includes SoftwareSerial.h which is incompatible with ENDSTOP_INTERRUPTS_FEATURE. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
-#endif
-
-#if BOTH(HAS_TMC_SW_SERIAL, MONITOR_DRIVER_STATUS)
-  #error "MONITOR_DRIVER_STATUS causes performance issues when used with SoftwareSerial-connected drivers. Disable MONITOR_DRIVER_STATUS or use hardware serial to continue."
-#endif

Marlin/src/HAL/AVR/pinsDebug.h

@@ -1,395 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-/**
- * PWM print routines for Atmel 8 bit AVR CPUs
- */
-
-#include "../../inc/MarlinConfig.h"
-
-#define NUMBER_PINS_TOTAL NUM_DIGITAL_PINS
-
-#if MB(BQ_ZUM_MEGA_3D, MIGHTYBOARD_REVE, MINIRAMBO, SCOOVO_X9H, TRIGORILLA_14)
-  #define AVR_ATmega2560_FAMILY_PLUS_70 1
-#endif
-
-#if AVR_AT90USB1286_FAMILY
-
-  // Working with Teensyduino extension so need to re-define some things
-  #include "pinsDebug_Teensyduino.h"
-  // Can't use the "digitalPinToPort" function from the Teensyduino type IDEs
-  // portModeRegister takes a different argument
-  #define digitalPinToTimer_DEBUG(p) digitalPinToTimer(p)
-  #define digitalPinToBitMask_DEBUG(p) digitalPinToBitMask(p)
-  #define digitalPinToPort_DEBUG(p) digitalPinToPort_Teensy(p)
-  #define GET_PINMODE(pin) (*portModeRegister(pin) & digitalPinToBitMask_DEBUG(pin))
-
-#elif AVR_ATmega2560_FAMILY_PLUS_70   // So we can access/display all the pins on boards using more than 70
-
-  #include "pinsDebug_plus_70.h"
-  #define digitalPinToTimer_DEBUG(p) digitalPinToTimer_plus_70(p)
-  #define digitalPinToBitMask_DEBUG(p) digitalPinToBitMask_plus_70(p)
-  #define digitalPinToPort_DEBUG(p) digitalPinToPort_plus_70(p)
-  bool GET_PINMODE(int8_t pin) {return *portModeRegister(digitalPinToPort_DEBUG(pin)) & digitalPinToBitMask_DEBUG(pin); }
-
-#else
-
-  #define digitalPinToTimer_DEBUG(p) digitalPinToTimer(p)
-  #define digitalPinToBitMask_DEBUG(p) digitalPinToBitMask(p)
-  #define digitalPinToPort_DEBUG(p) digitalPinToPort(p)
-  bool GET_PINMODE(int8_t pin) {return *portModeRegister(digitalPinToPort_DEBUG(pin)) & digitalPinToBitMask_DEBUG(pin); }
-  #define GET_ARRAY_PIN(p) pgm_read_byte(&pin_array[p].pin)
-
-#endif
-
-#define VALID_PIN(pin) (pin >= 0 && pin < NUM_DIGITAL_PINS ? 1 : 0)
-#if AVR_ATmega1284_FAMILY
-  #define DIGITAL_PIN_TO_ANALOG_PIN(P) int(analogInputToDigitalPin(0) - (P))
-  #define IS_ANALOG(P) ((P) >= analogInputToDigitalPin(7) && (P) <= analogInputToDigitalPin(0))
-#else
-  #define DIGITAL_PIN_TO_ANALOG_PIN(P) int((P) - analogInputToDigitalPin(0))
-  #define IS_ANALOG(P) ((P) >= analogInputToDigitalPin(0) && ((P) <= analogInputToDigitalPin(15) || (P) <= analogInputToDigitalPin(7)))
-#endif
-#define GET_ARRAY_PIN(p) pgm_read_byte(&pin_array[p].pin)
-#define MULTI_NAME_PAD 26 // space needed to be pretty if not first name assigned to a pin
-
-void PRINT_ARRAY_NAME(uint8_t x) {
-  char *name_mem_pointer = (char*)pgm_read_ptr(&pin_array[x].name);
-  LOOP_L_N(y, MAX_NAME_LENGTH) {
-    char temp_char = pgm_read_byte(name_mem_pointer + y);
-    if (temp_char != 0)
-      SERIAL_CHAR(temp_char);
-    else {
-      LOOP_L_N(i, MAX_NAME_LENGTH - y) SERIAL_CHAR(' ');
-      break;
-    }
-  }
-}
-
-#define GET_ARRAY_IS_DIGITAL(x)   pgm_read_byte(&pin_array[x].is_digital)
-
-
-#if defined(__AVR_ATmega1284P__)  // 1284 IDE extensions set this to the number of
-  #undef NUM_DIGITAL_PINS         // digital only pins while all other CPUs have it
-  #define NUM_DIGITAL_PINS 32     // set to digital only + digital/analog
-#endif
-
-#define PWM_PRINT(V) do{ sprintf_P(buffer, PSTR("PWM:  %4d"), V); SERIAL_ECHO(buffer); }while(0)
-#define PWM_CASE(N,Z)                                           \
-  case TIMER##N##Z:                                             \
-    if (TCCR##N##A & (_BV(COM##N##Z##1) | _BV(COM##N##Z##0))) { \
-      PWM_PRINT(OCR##N##Z);                                     \
-      return true;                                              \
-    } else return false
-
-
-
-/**
- * Print a pin's PWM status.
- * Return true if it's currently a PWM pin.
- */
-static bool pwm_status(uint8_t pin) {
-  char buffer[20];   // for the sprintf statements
-
-  switch (digitalPinToTimer_DEBUG(pin)) {
-
-    #if defined(TCCR0A) && defined(COM0A1)
-      #ifdef TIMER0A
-        #if !AVR_AT90USB1286_FAMILY  // not available in Teensyduino type IDEs
-          PWM_CASE(0, A);
-        #endif
-      #endif
-      PWM_CASE(0, B);
-    #endif
-
-    #if defined(TCCR1A) && defined(COM1A1)
-      PWM_CASE(1, A);
-      PWM_CASE(1, B);
-     #if defined(COM1C1) && defined(TIMER1C)
-      PWM_CASE(1, C);
-     #endif
-    #endif
-
-    #if defined(TCCR2A) && defined(COM2A1)
-      PWM_CASE(2, A);
-      PWM_CASE(2, B);
-    #endif
-
-    #if defined(TCCR3A) && defined(COM3A1)
-      PWM_CASE(3, A);
-      PWM_CASE(3, B);
-      #ifdef COM3C1
-        PWM_CASE(3, C);
-      #endif
-    #endif
-
-    #ifdef TCCR4A
-      PWM_CASE(4, A);
-      PWM_CASE(4, B);
-      PWM_CASE(4, C);
-    #endif
-
-    #if defined(TCCR5A) && defined(COM5A1)
-      PWM_CASE(5, A);
-      PWM_CASE(5, B);
-      PWM_CASE(5, C);
-    #endif
-
-    case NOT_ON_TIMER:
-    default:
-      return false;
-  }
-  SERIAL_ECHO_SP(2);
-} // pwm_status
-
-
-const volatile uint8_t* const PWM_other[][3] PROGMEM = {
-    { &TCCR0A, &TCCR0B, &TIMSK0 },
-    { &TCCR1A, &TCCR1B, &TIMSK1 },
-  #if defined(TCCR2A) && defined(COM2A1)
-    { &TCCR2A, &TCCR2B, &TIMSK2 },
-  #endif
-  #if defined(TCCR3A) && defined(COM3A1)
-    { &TCCR3A, &TCCR3B, &TIMSK3 },
-  #endif
-  #ifdef TCCR4A
-    { &TCCR4A, &TCCR4B, &TIMSK4 },
-  #endif
-  #if defined(TCCR5A) && defined(COM5A1)
-    { &TCCR5A, &TCCR5B, &TIMSK5 },
-  #endif
-};
-
-
-const volatile uint8_t* const PWM_OCR[][3] PROGMEM = {
-
-  #ifdef TIMER0A
-    { &OCR0A, &OCR0B, 0 },
-  #else
-    { 0, &OCR0B, 0 },
-  #endif
-
-  #if defined(COM1C1) && defined(TIMER1C)
-   { (const uint8_t*)&OCR1A, (const uint8_t*)&OCR1B, (const uint8_t*)&OCR1C },
-  #else
-   { (const uint8_t*)&OCR1A, (const uint8_t*)&OCR1B, 0 },
-  #endif
-
-  #if defined(TCCR2A) && defined(COM2A1)
-    { &OCR2A, &OCR2B, 0 },
-  #endif
-
-  #if defined(TCCR3A) && defined(COM3A1)
-    #ifdef COM3C1
-      { (const uint8_t*)&OCR3A, (const uint8_t*)&OCR3B, (const uint8_t*)&OCR3C },
-    #else
-      { (const uint8_t*)&OCR3A, (const uint8_t*)&OCR3B, 0 },
-    #endif
-  #endif
-
-  #ifdef TCCR4A
-    { (const uint8_t*)&OCR4A, (const uint8_t*)&OCR4B, (const uint8_t*)&OCR4C },
-  #endif
-
-  #if defined(TCCR5A) && defined(COM5A1)
-    { (const uint8_t*)&OCR5A, (const uint8_t*)&OCR5B, (const uint8_t*)&OCR5C },
-  #endif
-};
-
-
-#define TCCR_A(T)   pgm_read_word(&PWM_other[T][0])
-#define TCCR_B(T)   pgm_read_word(&PWM_other[T][1])
-#define TIMSK(T)    pgm_read_word(&PWM_other[T][2])
-#define CS_0       0
-#define CS_1       1
-#define CS_2       2
-#define WGM_0      0
-#define WGM_1      1
-#define WGM_2      3
-#define WGM_3      4
-#define TOIE       0
-
-#define OCR_VAL(T, L)   pgm_read_word(&PWM_OCR[T][L])
-
-static void err_is_counter()     { SERIAL_ECHOPGM("   non-standard PWM mode"); }
-static void err_is_interrupt()   { SERIAL_ECHOPGM("   compare interrupt enabled"); }
-static void err_prob_interrupt() { SERIAL_ECHOPGM("   overflow interrupt enabled"); }
-static void print_is_also_tied() { SERIAL_ECHOPGM(" is also tied to this pin"); SERIAL_ECHO_SP(14); }
-
-inline void com_print(const uint8_t N, const uint8_t Z) {
-  const uint8_t *TCCRA = (uint8_t*)TCCR_A(N);
-  SERIAL_ECHOPAIR("    COM", AS_CHAR('0' + N));
-  SERIAL_CHAR(Z);
-  SERIAL_ECHOPAIR(": ", int((*TCCRA >> (6 - Z * 2)) & 0x03));
-}
-
-void timer_prefix(uint8_t T, char L, uint8_t N) {  // T - timer    L - pwm  N - WGM bit layout
-  char buffer[20];   // for the sprintf statements
-  const uint8_t *TCCRB = (uint8_t*)TCCR_B(T),
-                *TCCRA = (uint8_t*)TCCR_A(T);
-  uint8_t WGM = (((*TCCRB & _BV(WGM_2)) >> 1) | (*TCCRA & (_BV(WGM_0) | _BV(WGM_1))));
-  if (N == 4) WGM |= ((*TCCRB & _BV(WGM_3)) >> 1);
-
-  SERIAL_ECHOPAIR("    TIMER", AS_CHAR(T + '0'));
-  SERIAL_CHAR(L);
-  SERIAL_ECHO_SP(3);
-
-  if (N == 3) {
-    const uint8_t *OCRVAL8 = (uint8_t*)OCR_VAL(T, L - 'A');
-    PWM_PRINT(*OCRVAL8);
-  }
-  else {
-    const uint16_t *OCRVAL16 = (uint16_t*)OCR_VAL(T, L - 'A');
-    PWM_PRINT(*OCRVAL16);
-  }
-  SERIAL_ECHOPAIR("    WGM: ", WGM);
-  com_print(T,L);
-  SERIAL_ECHOPAIR("    CS: ", (*TCCRB & (_BV(CS_0) | _BV(CS_1) | _BV(CS_2)) ));
-  SERIAL_ECHOPAIR("    TCCR", AS_CHAR(T + '0'), "A: ", *TCCRA);
-  SERIAL_ECHOPAIR("    TCCR", AS_CHAR(T + '0'), "B: ", *TCCRB);
-
-  const uint8_t *TMSK = (uint8_t*)TIMSK(T);
-  SERIAL_ECHOPAIR("    TIMSK", AS_CHAR(T + '0'), ": ", *TMSK);
-
-  const uint8_t OCIE = L - 'A' + 1;
-  if (N == 3) { if (WGM == 0 || WGM == 2 || WGM ==  4 || WGM ==  6) err_is_counter(); }
-  else        { if (WGM == 0 || WGM == 4 || WGM == 12 || WGM == 13) err_is_counter(); }
-  if (TEST(*TMSK, OCIE)) err_is_interrupt();
-  if (TEST(*TMSK, TOIE)) err_prob_interrupt();
-}
-
-static void pwm_details(uint8_t pin) {
-  switch (digitalPinToTimer_DEBUG(pin)) {
-
-    #if defined(TCCR0A) && defined(COM0A1)
-      #ifdef TIMER0A
-        #if !AVR_AT90USB1286_FAMILY  // not available in Teensyduino type IDEs
-          case TIMER0A: timer_prefix(0, 'A', 3); break;
-        #endif
-      #endif
-      case TIMER0B: timer_prefix(0, 'B', 3); break;
-    #endif
-
-    #if defined(TCCR1A) && defined(COM1A1)
-      case TIMER1A: timer_prefix(1, 'A', 4); break;
-      case TIMER1B: timer_prefix(1, 'B', 4); break;
-      #if defined(COM1C1) && defined(TIMER1C)
-        case TIMER1C: timer_prefix(1, 'C', 4); break;
-      #endif
-    #endif
-
-    #if defined(TCCR2A) && defined(COM2A1)
-      case TIMER2A: timer_prefix(2, 'A', 3); break;
-      case TIMER2B: timer_prefix(2, 'B', 3); break;
-    #endif
-
-    #if defined(TCCR3A) && defined(COM3A1)
-      case TIMER3A: timer_prefix(3, 'A', 4); break;
-      case TIMER3B: timer_prefix(3, 'B', 4); break;
-      #ifdef COM3C1
-        case TIMER3C: timer_prefix(3, 'C', 4); break;
-      #endif
-    #endif
-
-    #ifdef TCCR4A
-      case TIMER4A: timer_prefix(4, 'A', 4); break;
-      case TIMER4B: timer_prefix(4, 'B', 4); break;
-      case TIMER4C: timer_prefix(4, 'C', 4); break;
-    #endif
-
-    #if defined(TCCR5A) && defined(COM5A1)
-      case TIMER5A: timer_prefix(5, 'A', 4); break;
-      case TIMER5B: timer_prefix(5, 'B', 4); break;
-      case TIMER5C: timer_prefix(5, 'C', 4); break;
-    #endif
-
-    case NOT_ON_TIMER: break;
-
-  }
-  SERIAL_ECHOPGM("  ");
-
-  // on pins that have two PWMs, print info on second PWM
-  #if AVR_ATmega2560_FAMILY || AVR_AT90USB1286_FAMILY
-    // looking for port B7 - PWMs 0A and 1C
-    if (digitalPinToPort_DEBUG(pin) == 'B' - 64 && 0x80 == digitalPinToBitMask_DEBUG(pin)) {
-      #if !AVR_AT90USB1286_FAMILY
-        SERIAL_ECHOPGM("\n .");
-        SERIAL_ECHO_SP(18);
-        SERIAL_ECHOPGM("TIMER1C");
-        print_is_also_tied();
-        timer_prefix(1, 'C', 4);
-      #else
-        SERIAL_ECHOPGM("\n .");
-        SERIAL_ECHO_SP(18);
-        SERIAL_ECHOPGM("TIMER0A");
-        print_is_also_tied();
-        timer_prefix(0, 'A', 3);
-      #endif
-    }
-  #else
-    UNUSED(print_is_also_tied);
-  #endif
-} // pwm_details
-
-
-#ifndef digitalRead_mod                   // Use Teensyduino's version of digitalRead - it doesn't disable the PWMs
-  int digitalRead_mod(const int8_t pin) { // same as digitalRead except the PWM stop section has been removed
-    const uint8_t port = digitalPinToPort_DEBUG(pin);
-    return (port != NOT_A_PIN) && (*portInputRegister(port) & digitalPinToBitMask_DEBUG(pin)) ? HIGH : LOW;
-  }
-#endif
-
-#ifndef PRINT_PORT
-
-  void print_port(int8_t pin) {   // print port number
-    #ifdef digitalPinToPort_DEBUG
-      uint8_t x;
-      SERIAL_ECHOPGM("  Port: ");
-      #if AVR_AT90USB1286_FAMILY
-        x = (pin == 46 || pin == 47) ? 'E' : digitalPinToPort_DEBUG(pin) + 64;
-      #else
-        x = digitalPinToPort_DEBUG(pin) + 64;
-      #endif
-      SERIAL_CHAR(x);
-
-      #if AVR_AT90USB1286_FAMILY
-        if (pin == 46)
-          x = '2';
-        else if (pin == 47)
-          x = '3';
-        else {
-          uint8_t temp = digitalPinToBitMask_DEBUG(pin);
-          for (x = '0'; x < '9' && temp != 1; x++) temp >>= 1;
-        }
-      #else
-        uint8_t temp = digitalPinToBitMask_DEBUG(pin);
-        for (x = '0'; x < '9' && temp != 1; x++) temp >>= 1;
-      #endif
-      SERIAL_CHAR(x);
-    #else
-      SERIAL_ECHO_SP(10);
-    #endif
-  }
-
-  #define PRINT_PORT(p) print_port(p)
-
-#endif
-
-#define PRINT_PIN(p) do{ sprintf_P(buffer, PSTR("%3d "), p); SERIAL_ECHO(buffer); }while(0)

Marlin/src/HAL/AVR/spi_pins.h

@@ -1,65 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-/**
- * Define SPI Pins: SCK, MISO, MOSI, SS
- */
-#if defined(__AVR_ATmega168__) || defined(__AVR_ATmega328__) || defined(__AVR_ATmega328P__)
-  #define AVR_SCK_PIN  13
-  #define AVR_MISO_PIN 12
-  #define AVR_MOSI_PIN 11
-  #define AVR_SS_PIN   10
-#elif defined(__AVR_ATmega644__) || defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644PA__) || defined(__AVR_ATmega1284P__)
-  #define AVR_SCK_PIN  7
-  #define AVR_MISO_PIN 6
-  #define AVR_MOSI_PIN 5
-  #define AVR_SS_PIN   4
-#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
-  #define AVR_SCK_PIN  52
-  #define AVR_MISO_PIN 50
-  #define AVR_MOSI_PIN 51
-  #define AVR_SS_PIN   53
-#elif defined(__AVR_AT90USB1287__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__)
-  #define AVR_SCK_PIN  21
-  #define AVR_MISO_PIN 23
-  #define AVR_MOSI_PIN 22
-  #define AVR_SS_PIN   20
-#elif defined(__AVR_ATmega1281__) || defined(__AVR_ATmega2561__)
-  #define AVR_SCK_PIN  10
-  #define AVR_MISO_PIN 12
-  #define AVR_MOSI_PIN 11
-  #define AVR_SS_PIN   16
-#endif
-
-#ifndef SD_SCK_PIN
-  #define SD_SCK_PIN  AVR_SCK_PIN
-#endif
-#ifndef SD_MISO_PIN
-  #define SD_MISO_PIN AVR_MISO_PIN
-#endif
-#ifndef SD_MOSI_PIN
-  #define SD_MOSI_PIN AVR_MOSI_PIN
-#endif
-#ifndef SD_SS_PIN
-  #define SD_SS_PIN   AVR_SS_PIN
-#endif

Marlin/src/HAL/AVR/timers.h

@@ -1,260 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-#include <stdint.h>
-
-// ------------------------
-// Types
-// ------------------------
-
-typedef uint16_t hal_timer_t;
-#define HAL_TIMER_TYPE_MAX 0xFFFF
-
-// ------------------------
-// Defines
-// ------------------------
-
-#define HAL_TIMER_RATE          ((F_CPU) / 8)    // i.e., 2MHz or 2.5MHz
-
-#ifndef STEP_TIMER_NUM
-  #define STEP_TIMER_NUM        1
-#endif
-#ifndef PULSE_TIMER_NUM
-  #define PULSE_TIMER_NUM       STEP_TIMER_NUM
-#endif
-#ifndef TEMP_TIMER_NUM
-  #define TEMP_TIMER_NUM        0
-#endif
-
-#define TEMP_TIMER_FREQUENCY    ((F_CPU) / 64.0 / 256.0)
-
-#define STEPPER_TIMER_RATE      HAL_TIMER_RATE
-#define STEPPER_TIMER_PRESCALE  8
-#define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000) // Cannot be of type double
-
-#define PULSE_TIMER_RATE       STEPPER_TIMER_RATE   // frequency of pulse timer
-#define PULSE_TIMER_PRESCALE   STEPPER_TIMER_PRESCALE
-#define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US
-
-#define ENABLE_STEPPER_DRIVER_INTERRUPT()  SBI(TIMSK1, OCIE1A)
-#define DISABLE_STEPPER_DRIVER_INTERRUPT() CBI(TIMSK1, OCIE1A)
-#define STEPPER_ISR_ENABLED()             TEST(TIMSK1, OCIE1A)
-
-#define ENABLE_TEMPERATURE_INTERRUPT()     SBI(TIMSK0, OCIE0B)
-#define DISABLE_TEMPERATURE_INTERRUPT()    CBI(TIMSK0, OCIE0B)
-#define TEMPERATURE_ISR_ENABLED()         TEST(TIMSK0, OCIE0B)
-
-FORCE_INLINE void HAL_timer_start(const uint8_t timer_num, const uint32_t) {
-  switch (timer_num) {
-    case STEP_TIMER_NUM:
-      // waveform generation = 0100 = CTC
-      SET_WGM(1, CTC_OCRnA);
-
-      // output mode = 00 (disconnected)
-      SET_COMA(1, NORMAL);
-
-      // Set the timer pre-scaler
-      // Generally we use a divider of 8, resulting in a 2MHz timer
-      // frequency on a 16MHz MCU. If you are going to change this, be
-      // sure to regenerate speed_lookuptable.h with
-      // create_speed_lookuptable.py
-      SET_CS(1, PRESCALER_8);  //  CS 2 = 1/8 prescaler
-
-      // Init Stepper ISR to 122 Hz for quick starting
-      // (F_CPU) / (STEPPER_TIMER_PRESCALE) / frequency
-      OCR1A = 0x4000;
-      TCNT1 = 0;
-      break;
-
-    case TEMP_TIMER_NUM:
-      // Use timer0 for temperature measurement
-      // Interleave temperature interrupt with millies interrupt
-      OCR0B = 128;
-      break;
-  }
-}
-
-#define TIMER_OCR_1             OCR1A
-#define TIMER_COUNTER_1         TCNT1
-
-#define TIMER_OCR_0             OCR0A
-#define TIMER_COUNTER_0         TCNT0
-
-#define _CAT(a,V...) a##V
-#define HAL_timer_set_compare(timer, compare) (_CAT(TIMER_OCR_, timer) = compare)
-#define HAL_timer_get_compare(timer) _CAT(TIMER_OCR_, timer)
-#define HAL_timer_get_count(timer) _CAT(TIMER_COUNTER_, timer)
-
-/**
- * On AVR there is no hardware prioritization and preemption of
- * interrupts, so this emulates it. The UART has first priority
- * (otherwise, characters will be lost due to UART overflow).
- * Then: Stepper, Endstops, Temperature, and -finally- all others.
- */
-#define HAL_timer_isr_prologue(TIMER_NUM)
-#define HAL_timer_isr_epilogue(TIMER_NUM)
-
-/* 18 cycles maximum latency */
-#ifndef HAL_STEP_TIMER_ISR
-
-#define HAL_STEP_TIMER_ISR() \
-extern "C" void TIMER1_COMPA_vect() __attribute__ ((signal, naked, used, externally_visible)); \
-extern "C" void TIMER1_COMPA_vect_bottom() asm ("TIMER1_COMPA_vect_bottom") __attribute__ ((used, externally_visible, noinline)); \
-void TIMER1_COMPA_vect() { \
-  __asm__ __volatile__ ( \
-    A("push r16")                      /* 2 Save R16 */ \
-    A("in r16, __SREG__")              /* 1 Get SREG */ \
-    A("push r16")                      /* 2 Save SREG into stack */ \
-    A("lds r16, %[timsk0]")            /* 2 Load into R0 the Temperature timer Interrupt mask register */ \
-    A("push r16")                      /* 2 Save TIMSK0 into the stack */ \
-    A("andi r16,~%[msk0]")             /* 1 Disable the temperature ISR */ \
-    A("sts %[timsk0], r16")            /* 2 And set the new value */ \
-    A("lds r16, %[timsk1]")            /* 2 Load into R0 the stepper timer Interrupt mask register [TIMSK1] */ \
-    A("andi r16,~%[msk1]")             /* 1 Disable the stepper ISR */ \
-    A("sts %[timsk1], r16")            /* 2 And set the new value */ \
-    A("push r16")                      /* 2 Save TIMSK1 into stack */ \
-    A("in r16, 0x3B")                  /* 1 Get RAMPZ register */ \
-    A("push r16")                      /* 2 Save RAMPZ into stack */ \
-    A("in r16, 0x3C")                  /* 1 Get EIND register */ \
-    A("push r0")                       /* C runtime can modify all the following registers without restoring them */ \
-    A("push r1")                       \
-    A("push r18")                      \
-    A("push r19")                      \
-    A("push r20")                      \
-    A("push r21")                      \
-    A("push r22")                      \
-    A("push r23")                      \
-    A("push r24")                      \
-    A("push r25")                      \
-    A("push r26")                      \
-    A("push r27")                      \
-    A("push r30")                      \
-    A("push r31")                      \
-    A("clr r1")                        /* C runtime expects this register to be 0 */ \
-    A("call TIMER1_COMPA_vect_bottom") /* Call the bottom handler - No inlining allowed, otherwise registers used are not saved */   \
-    A("pop r31")                       \
-    A("pop r30")                       \
-    A("pop r27")                       \
-    A("pop r26")                       \
-    A("pop r25")                       \
-    A("pop r24")                       \
-    A("pop r23")                       \
-    A("pop r22")                       \
-    A("pop r21")                       \
-    A("pop r20")                       \
-    A("pop r19")                       \
-    A("pop r18")                       \
-    A("pop r1")                        \
-    A("pop r0")                        \
-    A("out 0x3C, r16")                 /* 1 Restore EIND register */ \
-    A("pop r16")                       /* 2 Get the original RAMPZ register value */ \
-    A("out 0x3B, r16")                 /* 1 Restore RAMPZ register to its original value */ \
-    A("pop r16")                       /* 2 Get the original TIMSK1 value but with stepper ISR disabled */ \
-    A("ori r16,%[msk1]")               /* 1 Reenable the stepper ISR */ \
-    A("cli")                           /* 1 Disable global interrupts - Reenabling Stepper ISR can reenter amd temperature can reenter, and we want that, if it happens, after this ISR has ended */ \
-    A("sts %[timsk1], r16")            /* 2 And restore the old value - This reenables the stepper ISR */ \
-    A("pop r16")                       /* 2 Get the temperature timer Interrupt mask register [TIMSK0] */ \
-    A("sts %[timsk0], r16")            /* 2 And restore the old value - This reenables the temperature ISR */ \
-    A("pop r16")                       /* 2 Get the old SREG value */ \
-    A("out __SREG__, r16")             /* 1 And restore the SREG value */ \
-    A("pop r16")                       /* 2 Restore R16 value */ \
-    A("reti")                          /* 4 Return from interrupt */ \
-    :                                   \
-    : [timsk0] "i" ((uint16_t)&TIMSK0), \
-      [timsk1] "i" ((uint16_t)&TIMSK1), \
-      [msk0] "M" ((uint8_t)(1<<OCIE0B)),\
-      [msk1] "M" ((uint8_t)(1<<OCIE1A)) \
-    : \
-  ); \
-} \
-void TIMER1_COMPA_vect_bottom()
-
-#endif // HAL_STEP_TIMER_ISR
-
-#ifndef HAL_TEMP_TIMER_ISR
-
-/* 14 cycles maximum latency */
-#define HAL_TEMP_TIMER_ISR() \
-extern "C" void TIMER0_COMPB_vect() __attribute__ ((signal, naked, used, externally_visible)); \
-extern "C" void TIMER0_COMPB_vect_bottom()  asm ("TIMER0_COMPB_vect_bottom") __attribute__ ((used, externally_visible, noinline)); \
-void TIMER0_COMPB_vect() { \
-  __asm__ __volatile__ ( \
-    A("push r16")                       /* 2 Save R16 */ \
-    A("in r16, __SREG__")               /* 1 Get SREG */ \
-    A("push r16")                       /* 2 Save SREG into stack */ \
-    A("lds r16, %[timsk0]")             /* 2 Load into R0 the Temperature timer Interrupt mask register */ \
-    A("andi r16,~%[msk0]")              /* 1 Disable the temperature ISR */ \
-    A("sts %[timsk0], r16")             /* 2 And set the new value */ \
-    A("sei")                            /* 1 Enable global interrupts - It is safe, as the temperature ISR is disabled, so we cannot reenter it */    \
-    A("push r16")                       /* 2 Save TIMSK0 into stack */ \
-    A("in r16, 0x3B")                   /* 1 Get RAMPZ register */ \
-    A("push r16")                       /* 2 Save RAMPZ into stack */ \
-    A("in r16, 0x3C")                   /* 1 Get EIND register */ \
-    A("push r0")                        /* C runtime can modify all the following registers without restoring them */ \
-    A("push r1")                        \
-    A("push r18")                       \
-    A("push r19")                       \
-    A("push r20")                       \
-    A("push r21")                       \
-    A("push r22")                       \
-    A("push r23")                       \
-    A("push r24")                       \
-    A("push r25")                       \
-    A("push r26")                       \
-    A("push r27")                       \
-    A("push r30")                       \
-    A("push r31")                       \
-    A("clr r1")                         /* C runtime expects this register to be 0 */ \
-    A("call TIMER0_COMPB_vect_bottom")  /* Call the bottom handler - No inlining allowed, otherwise registers used are not saved */   \
-    A("pop r31")                        \
-    A("pop r30")                        \
-    A("pop r27")                        \
-    A("pop r26")                        \
-    A("pop r25")                        \
-    A("pop r24")                        \
-    A("pop r23")                        \
-    A("pop r22")                        \
-    A("pop r21")                        \
-    A("pop r20")                        \
-    A("pop r19")                        \
-    A("pop r18")                        \
-    A("pop r1")                         \
-    A("pop r0")                         \
-    A("out 0x3C, r16")                  /* 1 Restore EIND register */ \
-    A("pop r16")                        /* 2 Get the original RAMPZ register value */ \
-    A("out 0x3B, r16")                  /* 1 Restore RAMPZ register to its original value */ \
-    A("pop r16")                        /* 2 Get the original TIMSK0 value but with temperature ISR disabled */ \
-    A("ori r16,%[msk0]")                /* 1 Enable temperature ISR */ \
-    A("cli")                            /* 1 Disable global interrupts - We must do this, as we will reenable the temperature ISR, and we don't want to reenter this handler until the current one is done */ \
-    A("sts %[timsk0], r16")             /* 2 And restore the old value */ \
-    A("pop r16")                        /* 2 Get the old SREG */ \
-    A("out __SREG__, r16")              /* 1 And restore the SREG value */ \
-    A("pop r16")                        /* 2 Restore R16 */ \
-    A("reti")                           /* 4 Return from interrupt */ \
-    :                                   \
-    : [timsk0] "i"((uint16_t)&TIMSK0),  \
-      [msk0] "M" ((uint8_t)(1<<OCIE0B)) \
-    : \
-  ); \
-} \
-void TIMER0_COMPB_vect_bottom()
-
-#endif // HAL_TEMP_TIMER_ISR

Marlin/src/HAL/AVR/watchdog.cpp

@@ -1,70 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#ifdef __AVR__
-
-#include "../../inc/MarlinConfig.h"
-
-#if ENABLED(USE_WATCHDOG)
-
-#include "watchdog.h"
-
-#include "../../MarlinCore.h"
-
-// Initialize watchdog with 8s timeout, if possible. Otherwise, make it 4s.
-void watchdog_init() {
-  #if ENABLED(WATCHDOG_DURATION_8S) && defined(WDTO_8S)
-    #define WDTO_NS WDTO_8S
-  #else
-    #define WDTO_NS WDTO_4S
-  #endif
-  #if ENABLED(WATCHDOG_RESET_MANUAL)
-    // Enable the watchdog timer, but only for the interrupt.
-    // Take care, as this requires the correct order of operation, with interrupts disabled.
-    // See the datasheet of any AVR chip for details.
-    wdt_reset();
-    cli();
-    _WD_CONTROL_REG = _BV(_WD_CHANGE_BIT) | _BV(WDE);
-    _WD_CONTROL_REG = _BV(WDIE) | (WDTO_NS & 0x07) | ((WDTO_NS & 0x08) << 2); // WDTO_NS directly does not work. bit 0-2 are consecutive in the register but the highest value bit is at bit 5
-                                                                              // So worked for up to WDTO_2S
-    sei();
-    wdt_reset();
-  #else
-    wdt_enable(WDTO_NS); // The function handles the upper bit correct.
-  #endif
-  //delay(10000); // test it!
-}
-
-//===========================================================================
-//=================================== ISR ===================================
-//===========================================================================
-
-// Watchdog timer interrupt, called if main program blocks >4sec and manual reset is enabled.
-#if ENABLED(WATCHDOG_RESET_MANUAL)
-  ISR(WDT_vect) {
-    sei();  // With the interrupt driven serial we need to allow interrupts.
-    SERIAL_ERROR_MSG(STR_WATCHDOG_FIRED);
-    minkill();  // interrupt-safe final kill and infinite loop
-  }
-#endif
-
-#endif // USE_WATCHDOG
-#endif // __AVR__

Marlin/src/HAL/AVR/watchdog.h

@@ -1,31 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-#include <avr/wdt.h>
-
-// Initialize watchdog with a 4 second interrupt time
-void watchdog_init();
-
-// Reset watchdog. MUST be called at least every 4 seconds after the
-// first watchdog_init or AVR will go into emergency procedures.
-inline void HAL_watchdog_refresh() { wdt_reset(); }

Marlin/src/HAL/DUE/DebugMonitor.cpp

@@ -1,342 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#ifdef ARDUINO_ARCH_SAM
-
-#include "../../core/macros.h"
-#include "../../core/serial.h"
-
-#include "../shared/backtrace/unwinder.h"
-#include "../shared/backtrace/unwmemaccess.h"
-
-#include <stdarg.h>
-
-// Debug monitor that dumps to the Programming port all status when
-// an exception or WDT timeout happens - And then resets the board
-
-// All the Monitor routines must run with interrupts disabled and
-// under an ISR execution context. That is why we cannot reuse the
-// Serial interrupt routines or any C runtime, as we don't know the
-// state we are when running them
-
-// A SW memory barrier, to ensure GCC does not overoptimize loops
-#define sw_barrier() __asm__ volatile("": : :"memory");
-
-// (re)initialize UART0 as a monitor output to 250000,n,8,1
-static void TXBegin() {
-
-  // Disable UART interrupt in NVIC
-  NVIC_DisableIRQ( UART_IRQn );
-
-  // We NEED memory barriers to ensure Interrupts are actually disabled!
-  // ( https://dzone.com/articles/nvic-disabling-interrupts-on-arm-cortex-m-and-the )
-  __DSB();
-  __ISB();
-
-  // Disable clock
-  pmc_disable_periph_clk( ID_UART );
-
-  // Configure PMC
-  pmc_enable_periph_clk( ID_UART );
-
-  // Disable PDC channel
-  UART->UART_PTCR = UART_PTCR_RXTDIS | UART_PTCR_TXTDIS;
-
-  // Reset and disable receiver and transmitter
-  UART->UART_CR = UART_CR_RSTRX | UART_CR_RSTTX | UART_CR_RXDIS | UART_CR_TXDIS;
-
-  // Configure mode: 8bit, No parity, 1 bit stop
-  UART->UART_MR = UART_MR_CHMODE_NORMAL | US_MR_CHRL_8_BIT | US_MR_NBSTOP_1_BIT | UART_MR_PAR_NO;
-
-  // Configure baudrate (asynchronous, no oversampling) to BAUDRATE bauds
-  UART->UART_BRGR = (SystemCoreClock / (BAUDRATE << 4));
-
-  // Enable receiver and transmitter
-  UART->UART_CR = UART_CR_RXEN | UART_CR_TXEN;
-}
-
-// Send character through UART with no interrupts
-static void TX(char c) {
-  while (!(UART->UART_SR & UART_SR_TXRDY)) { WDT_Restart(WDT); sw_barrier(); };
-  UART->UART_THR = c;
-}
-
-// Send String through UART
-static void TX(const char* s) {
-  while (*s) TX(*s++);
-}
-
-static void TXDigit(uint32_t d) {
-  if (d < 10) TX((char)(d+'0'));
-  else if (d < 16) TX((char)(d+'A'-10));
-  else TX('?');
-}
-
-// Send Hex number thru UART
-static void TXHex(uint32_t v) {
-  TX("0x");
-  for (uint8_t i = 0; i < 8; i++, v <<= 4)
-    TXDigit((v >> 28) & 0xF);
-}
-
-// Send Decimal number thru UART
-static void TXDec(uint32_t v) {
-  if (!v) {
-    TX('0');
-    return;
-  }
-
-  char nbrs[14];
-  char *p = &nbrs[0];
-  while (v != 0) {
-    *p++ = '0' + (v % 10);
-    v /= 10;
-  }
-  do {
-    p--;
-    TX(*p);
-  } while (p != &nbrs[0]);
-}
-
-// Dump a backtrace entry
-static bool UnwReportOut(void* ctx, const UnwReport* bte) {
-  int* p = (int*)ctx;
-
-  (*p)++;
-  TX('#'); TXDec(*p); TX(" : ");
-  TX(bte->name?bte->name:"unknown"); TX('@'); TXHex(bte->function);
-  TX('+'); TXDec(bte->address - bte->function);
-  TX(" PC:");TXHex(bte->address); TX('\n');
-  return true;
-}
-
-#ifdef UNW_DEBUG
-  void UnwPrintf(const char* format, ...) {
-    char dest[256];
-    va_list argptr;
-    va_start(argptr, format);
-    vsprintf(dest, format, argptr);
-    va_end(argptr);
-    TX(&dest[0]);
-  }
-#endif
-
-/* Table of function pointers for passing to the unwinder */
-static const UnwindCallbacks UnwCallbacks = {
-  UnwReportOut,
-  UnwReadW,
-  UnwReadH,
-  UnwReadB
-  #ifdef UNW_DEBUG
-   , UnwPrintf
-  #endif
-};
-
-/**
- * HardFaultHandler_C:
- * This is called from the HardFault_HandlerAsm with a pointer the Fault stack
- * as the parameter. We can then read the values from the stack and place them
- * into local variables for ease of reading.
- * We then read the various Fault Status and Address Registers to help decode
- * cause of the fault.
- * The function ends with a BKPT instruction to force control back into the debugger
- */
-extern "C"
-void HardFault_HandlerC(unsigned long *sp, unsigned long lr, unsigned long cause) {
-
-  static const char* causestr[] = {
-    "NMI","Hard","Mem","Bus","Usage","Debug","WDT","RSTC"
-  };
-
-  UnwindFrame btf;
-
-  // Dump report to the Programming port (interrupts are DISABLED)
-  TXBegin();
-  TX("\n\n## Software Fault detected ##\n");
-  TX("Cause: "); TX(causestr[cause]); TX('\n');
-
-  TX("R0   : "); TXHex(((unsigned long)sp[0])); TX('\n');
-  TX("R1   : "); TXHex(((unsigned long)sp[1])); TX('\n');
-  TX("R2   : "); TXHex(((unsigned long)sp[2])); TX('\n');
-  TX("R3   : "); TXHex(((unsigned long)sp[3])); TX('\n');
-  TX("R12  : "); TXHex(((unsigned long)sp[4])); TX('\n');
-  TX("LR   : "); TXHex(((unsigned long)sp[5])); TX('\n');
-  TX("PC   : "); TXHex(((unsigned long)sp[6])); TX('\n');
-  TX("PSR  : "); TXHex(((unsigned long)sp[7])); TX('\n');
-
-  // Configurable Fault Status Register
-  // Consists of MMSR, BFSR and UFSR
-  TX("CFSR : "); TXHex((*((volatile unsigned long *)(0xE000ED28)))); TX('\n');
-
-  // Hard Fault Status Register
-  TX("HFSR : "); TXHex((*((volatile unsigned long *)(0xE000ED2C)))); TX('\n');
-
-  // Debug Fault Status Register
-  TX("DFSR : "); TXHex((*((volatile unsigned long *)(0xE000ED30)))); TX('\n');
-
-  // Auxiliary Fault Status Register
-  TX("AFSR : "); TXHex((*((volatile unsigned long *)(0xE000ED3C)))); TX('\n');
-
-  // Read the Fault Address Registers. These may not contain valid values.
-  // Check BFARVALID/MMARVALID to see if they are valid values
-  // MemManage Fault Address Register
-  TX("MMAR : "); TXHex((*((volatile unsigned long *)(0xE000ED34)))); TX('\n');
-
-  // Bus Fault Address Register
-  TX("BFAR : "); TXHex((*((volatile unsigned long *)(0xE000ED38)))); TX('\n');
-
-  TX("ExcLR: "); TXHex(lr); TX('\n');
-  TX("ExcSP: "); TXHex((unsigned long)sp); TX('\n');
-
-  btf.sp = ((unsigned long)sp) + 8*4; // The original stack pointer
-  btf.fp = btf.sp;
-  btf.lr = ((unsigned long)sp[5]);
-  btf.pc = ((unsigned long)sp[6]) | 1; // Force Thumb, as CORTEX only support it
-
-  // Perform a backtrace
-  TX("\nBacktrace:\n\n");
-  int ctr = 0;
-  UnwindStart(&btf, &UnwCallbacks, &ctr);
-
-  // Disable all NVIC interrupts
-  NVIC->ICER[0] = 0xFFFFFFFF;
-  NVIC->ICER[1] = 0xFFFFFFFF;
-
-  // Relocate VTOR table to default position
-  SCB->VTOR = 0;
-
-  // Disable USB
-  otg_disable();
-
-  // Restart watchdog
-  WDT_Restart(WDT);
-
-  // Reset controller
-  NVIC_SystemReset();
-  for (;;) WDT_Restart(WDT);
-}
-
-__attribute__((naked)) void NMI_Handler() {
-  __asm__ __volatile__ (
-    ".syntax unified" "\n\t"
-    A("tst lr, #4")
-    A("ite eq")
-    A("mrseq r0, msp")
-    A("mrsne r0, psp")
-    A("mov r1,lr")
-    A("mov r2,#0")
-    A("b HardFault_HandlerC")
-  );
-}
-
-__attribute__((naked)) void HardFault_Handler() {
-  __asm__ __volatile__ (
-    ".syntax unified" "\n\t"
-    A("tst lr, #4")
-    A("ite eq")
-    A("mrseq r0, msp")
-    A("mrsne r0, psp")
-    A("mov r1,lr")
-    A("mov r2,#1")
-    A("b HardFault_HandlerC")
-  );
-}
-
-__attribute__((naked)) void MemManage_Handler() {
-  __asm__ __volatile__ (
-    ".syntax unified" "\n\t"
-    A("tst lr, #4")
-    A("ite eq")
-    A("mrseq r0, msp")
-    A("mrsne r0, psp")
-    A("mov r1,lr")
-    A("mov r2,#2")
-    A("b HardFault_HandlerC")
-  );
-}
-
-__attribute__((naked)) void BusFault_Handler() {
-  __asm__ __volatile__ (
-    ".syntax unified" "\n\t"
-    A("tst lr, #4")
-    A("ite eq")
-    A("mrseq r0, msp")
-    A("mrsne r0, psp")
-    A("mov r1,lr")
-    A("mov r2,#3")
-    A("b HardFault_HandlerC")
-  );
-}
-
-__attribute__((naked)) void UsageFault_Handler() {
-  __asm__ __volatile__ (
-    ".syntax unified" "\n\t"
-    A("tst lr, #4")
-    A("ite eq")
-    A("mrseq r0, msp")
-    A("mrsne r0, psp")
-    A("mov r1,lr")
-    A("mov r2,#4")
-    A("b HardFault_HandlerC")
-  );
-}
-
-__attribute__((naked)) void DebugMon_Handler() {
-  __asm__ __volatile__ (
-    ".syntax unified" "\n\t"
-    A("tst lr, #4")
-    A("ite eq")
-    A("mrseq r0, msp")
-    A("mrsne r0, psp")
-    A("mov r1,lr")
-    A("mov r2,#5")
-    A("b HardFault_HandlerC")
-  );
-}
-
-/* This is NOT an exception, it is an interrupt handler - Nevertheless, the framing is the same */
-__attribute__((naked)) void WDT_Handler() {
-  __asm__ __volatile__ (
-    ".syntax unified" "\n\t"
-    A("tst lr, #4")
-    A("ite eq")
-    A("mrseq r0, msp")
-    A("mrsne r0, psp")
-    A("mov r1,lr")
-    A("mov r2,#6")
-    A("b HardFault_HandlerC")
-  );
-}
-
-__attribute__((naked)) void RSTC_Handler() {
-  __asm__ __volatile__ (
-    ".syntax unified" "\n\t"
-    A("tst lr, #4")
-    A("ite eq")
-    A("mrseq r0, msp")
-    A("mrsne r0, psp")
-    A("mov r1,lr")
-    A("mov r2,#7")
-    A("b HardFault_HandlerC")
-  );
-}
-
-#endif // ARDUINO_ARCH_SAM

Marlin/src/HAL/DUE/HAL.cpp

@@ -1,112 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
-/**
- * HAL for Arduino Due and compatible (SAM3X8E)
- */
-
-#ifdef ARDUINO_ARCH_SAM
-
-#include "../../inc/MarlinConfig.h"
-#include "HAL.h"
-
-#include <Wire.h>
-#include "usb/usb_task.h"
-
-// ------------------------
-// Public Variables
-// ------------------------
-
-uint16_t HAL_adc_result;
-
-// ------------------------
-// Public functions
-// ------------------------
-
-// HAL initialization task
-void HAL_init() {
-  // Initialize the USB stack
-  #if ENABLED(SDSUPPORT)
-    OUT_WRITE(SDSS, HIGH);  // Try to set SDSS inactive before any other SPI users start up
-  #endif
-  usb_task_init();
-}
-
-// HAL idle task
-void HAL_idletask() {
-  // Perform USB stack housekeeping
-  usb_task_idle();
-}
-
-// Disable interrupts
-void cli() { noInterrupts(); }
-
-// Enable interrupts
-void sei() { interrupts(); }
-
-void HAL_clear_reset_source() { }
-
-uint8_t HAL_get_reset_source() {
-  switch ((RSTC->RSTC_SR >> 8) & 0x07) {
-    case 0: return RST_POWER_ON;
-    case 1: return RST_BACKUP;
-    case 2: return RST_WATCHDOG;
-    case 3: return RST_SOFTWARE;
-    case 4: return RST_EXTERNAL;
-    default: return 0;
-  }
-}
-
-void _delay_ms(const int delay_ms) {
-  // Todo: port for Due?
-  delay(delay_ms);
-}
-
-extern "C" {
-  extern unsigned int _ebss; // end of bss section
-}
-
-// Return free memory between end of heap (or end bss) and whatever is current
-int freeMemory() {
-  int free_memory, heap_end = (int)_sbrk(0);
-  return (int)&free_memory - (heap_end ?: (int)&_ebss);
-}
-
-// ------------------------
-// ADC
-// ------------------------
-
-void HAL_adc_start_conversion(const uint8_t ch) {
-  HAL_adc_result = analogRead(ch);
-}
-
-uint16_t HAL_adc_get_result() {
-  // nop
-  return HAL_adc_result;
-}
-
-// Forward the default serial port
-DefaultSerial MSerial(false, Serial);
-
-DefaultSerial1 MSerial1(false, Serial1);
-DefaultSerial2 MSerial2(false, Serial2);
-DefaultSerial3 MSerial3(false, Serial3);
-
-#endif // ARDUINO_ARCH_SAM

Marlin/src/HAL/DUE/HAL.h

@@ -1,182 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- *
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-/**
- * HAL for Arduino Due and compatible (SAM3X8E)
- */
-
-#define CPU_32_BIT
-
-#include "../shared/Marduino.h"
-#include "../shared/eeprom_if.h"
-#include "../shared/math_32bit.h"
-#include "../shared/HAL_SPI.h"
-#include "fastio.h"
-#include "watchdog.h"
-
-#include <stdint.h>
-
-#include "../../core/serial_hook.h"
-typedef ForwardSerial0Type< decltype(Serial) > DefaultSerial;
-extern DefaultSerial MSerial;
-
-typedef ForwardSerial0Type< decltype(Serial1) > DefaultSerial1;
-typedef ForwardSerial0Type< decltype(Serial2) > DefaultSerial2;
-typedef ForwardSerial0Type< decltype(Serial3) > DefaultSerial3;
-extern DefaultSerial1 MSerial1;
-extern DefaultSerial2 MSerial2;
-extern DefaultSerial3 MSerial3;
-
-#define _MSERIAL(X) MSerial##X
-#define MSERIAL(X) _MSERIAL(X)
-#define MSerial0 MSerial
-
-// Define MYSERIAL0/1 before MarlinSerial includes!
-#if SERIAL_PORT == -1 || ENABLED(EMERGENCY_PARSER)
-  #define MYSERIAL0 customizedSerial1
-#elif WITHIN(SERIAL_PORT, 0, 3)
-  #define MYSERIAL0 MSERIAL(SERIAL_PORT)
-#else
-  #error "The required SERIAL_PORT must be from -1 to 3. Please update your configuration."
-#endif
-
-#ifdef SERIAL_PORT_2
-  #if SERIAL_PORT_2 == -1 || ENABLED(EMERGENCY_PARSER)
-    #define MYSERIAL1 customizedSerial2
-  #elif WITHIN(SERIAL_PORT_2, 0, 3)
-    #define MYSERIAL1 MSERIAL(SERIAL_PORT_2)
-  #else
-    #error "SERIAL_PORT_2 must be from -1 to 3. Please update your configuration."
-  #endif
-#endif
-
-#ifdef MMU2_SERIAL_PORT
-  #if WITHIN(MMU2_SERIAL_PORT, 0, 3)
-    #define MMU2_SERIAL MSERIAL(MMU2_SERIAL_PORT)
-  #else
-    #error "MMU2_SERIAL_PORT must be from 0 to 3. Please update your configuration."
-  #endif
-#endif
-
-#ifdef LCD_SERIAL_PORT
-  #if LCD_SERIAL_PORT == -1
-    #define LCD_SERIAL lcdSerial
-  #elif WITHIN(LCD_SERIAL_PORT, 0, 3)
-    #define LCD_SERIAL MSERIAL(LCD_SERIAL_PORT)
-  #else
-    #error "LCD_SERIAL_PORT must be from -1 to 3. Please update your configuration."
-  #endif
-#endif
-
-#include "MarlinSerial.h"
-#include "MarlinSerialUSB.h"
-
-// On AVR this is in math.h?
-#define square(x) ((x)*(x))
-
-typedef int8_t pin_t;
-
-#define SHARED_SERVOS HAS_SERVOS
-#define HAL_SERVO_LIB Servo
-
-//
-// Interrupts
-//
-#define CRITICAL_SECTION_START()  uint32_t primask = __get_PRIMASK(); __disable_irq()
-#define CRITICAL_SECTION_END()    if (!primask) __enable_irq()
-#define ISRS_ENABLED() (!__get_PRIMASK())
-#define ENABLE_ISRS()  __enable_irq()
-#define DISABLE_ISRS() __disable_irq()
-
-void cli();                     // Disable interrupts
-void sei();                     // Enable interrupts
-
-void HAL_clear_reset_source();  // clear reset reason
-uint8_t HAL_get_reset_source(); // get reset reason
-
-inline void HAL_reboot() {}  // reboot the board or restart the bootloader
-
-//
-// ADC
-//
-extern uint16_t HAL_adc_result;     // result of last ADC conversion
-
-#ifndef analogInputToDigitalPin
-  #define analogInputToDigitalPin(p) ((p < 12U) ? (p) + 54U : -1)
-#endif
-
-#define HAL_ANALOG_SELECT(ch)
-
-inline void HAL_adc_init() {}//todo
-
-#define HAL_ADC_VREF         3.3
-#define HAL_ADC_RESOLUTION  10
-#define HAL_START_ADC(ch)   HAL_adc_start_conversion(ch)
-#define HAL_READ_ADC()      HAL_adc_result
-#define HAL_ADC_READY()     true
-
-void HAL_adc_start_conversion(const uint8_t ch);
-uint16_t HAL_adc_get_result();
-
-//
-// Pin Map
-//
-#define GET_PIN_MAP_PIN(index) index
-#define GET_PIN_MAP_INDEX(pin) pin
-#define PARSED_PIN_INDEX(code, dval) parser.intval(code, dval)
-
-//
-// Tone
-//
-void toneInit();
-void tone(const pin_t _pin, const unsigned int frequency, const unsigned long duration=0);
-void noTone(const pin_t _pin);
-
-// Enable hooks into idle and setup for HAL
-#define HAL_IDLETASK 1
-void HAL_idletask();
-void HAL_init();
-
-//
-// Utility functions
-//
-void _delay_ms(const int delay);
-
-#if GCC_VERSION <= 50000
-  #pragma GCC diagnostic push
-  #pragma GCC diagnostic ignored "-Wunused-function"
-#endif
-
-int freeMemory();
-
-#if GCC_VERSION <= 50000
-  #pragma GCC diagnostic pop
-#endif
-
-#ifdef __cplusplus
-  extern "C" {
-#endif
-char *dtostrf(double __val, signed char __width, unsigned char __prec, char *__s);
-#ifdef __cplusplus
-  }
-#endif

Marlin/src/HAL/DUE/HAL_SPI.cpp

@@ -1,825 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
-/**
- * Software SPI functions originally from Arduino Sd2Card Library
- * Copyright (c) 2009 by William Greiman
- *
- * Completely rewritten and tuned by Eduardo José Tagle in 2017/2018
- * in ARM thumb2 inline assembler and tuned for maximum speed and performance
- * allowing SPI clocks of up to 12 Mhz to increase SD card read/write performance
- */
-
-/**
- * HAL for Arduino Due and compatible (SAM3X8E)
- *
- * For ARDUINO_ARCH_SAM
- */
-
-#ifdef ARDUINO_ARCH_SAM
-
-#include "../../inc/MarlinConfig.h"
-#include "../shared/Delay.h"
-
-// ------------------------
-// Public functions
-// ------------------------
-
-#if EITHER(DUE_SOFTWARE_SPI, FORCE_SOFT_SPI)
-
-  // ------------------------
-  // Software SPI
-  // ------------------------
-
-  // Make sure GCC optimizes this file.
-  // Note that this line triggers a bug in GCC which is fixed by casting.
-  // See the note below.
-  #pragma GCC optimize (3)
-
-  typedef uint8_t (*pfnSpiTransfer)(uint8_t b);
-  typedef void    (*pfnSpiRxBlock)(uint8_t* buf, uint32_t nbyte);
-  typedef void    (*pfnSpiTxBlock)(const uint8_t* buf, uint32_t nbyte);
-
-  /* ---------------- Macros to be able to access definitions from asm */
-  #define _PORT(IO) DIO ##  IO ## _WPORT
-  #define _PIN_MASK(IO) MASK(DIO ## IO ## _PIN)
-  #define _PIN_SHIFT(IO) DIO ## IO ## _PIN
-  #define PORT(IO) _PORT(IO)
-  #define PIN_MASK(IO) _PIN_MASK(IO)
-  #define PIN_SHIFT(IO) _PIN_SHIFT(IO)
-
-  // run at ~8 .. ~10Mhz - Tx version (Rx data discarded)
-  static uint8_t spiTransferTx0(uint8_t bout) { // using Mode 0
-    uint32_t MOSI_PORT_PLUS30 = ((uint32_t) PORT(SD_MOSI_PIN)) + 0x30;  /* SODR of port */
-    uint32_t MOSI_MASK = PIN_MASK(SD_MOSI_PIN);
-    uint32_t SCK_PORT_PLUS30 = ((uint32_t) PORT(SD_SCK_PIN)) + 0x30;    /* SODR of port */
-    uint32_t SCK_MASK = PIN_MASK(SD_SCK_PIN);
-    uint32_t idx = 0;
-
-    /* Negate bout, as the assembler requires a negated value */
-    bout = ~bout;
-
-    /* The software SPI routine */
-    __asm__ __volatile__(
-      A(".syntax unified") // is to prevent CM0,CM1 non-unified syntax
-
-      /* Bit 7 */
-      A("ubfx %[idx],%[txval],#7,#1")                      /* Place bit 7 in bit 0 of idx*/
-
-      A("str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]")  /* Access the proper SODR or CODR registers based on that bit */
-      A("str %[sck_mask],[%[sck_port]]")                   /* SODR */
-      A("ubfx %[idx],%[txval],#6,#1")                      /* Place bit 6 in bit 0 of idx*/
-      A("str %[sck_mask],[%[sck_port],#0x4]")              /* CODR */
-
-      /* Bit 6 */
-      A("str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]")  /* Access the proper SODR or CODR registers based on that bit */
-      A("str %[sck_mask],[%[sck_port]]")                   /* SODR */
-      A("ubfx %[idx],%[txval],#5,#1")                      /* Place bit 5 in bit 0 of idx*/
-      A("str %[sck_mask],[%[sck_port],#0x4]")              /* CODR */
-
-      /* Bit 5 */
-      A("str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]")  /* Access the proper SODR or CODR registers based on that bit */
-      A("str %[sck_mask],[%[sck_port]]")                   /* SODR */
-      A("ubfx %[idx],%[txval],#4,#1")                      /* Place bit 4 in bit 0 of idx*/
-      A("str %[sck_mask],[%[sck_port],#0x4]")              /* CODR */
-
-      /* Bit 4 */
-      A("str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]")  /* Access the proper SODR or CODR registers based on that bit */
-      A("str %[sck_mask],[%[sck_port]]")                   /* SODR */
-      A("ubfx %[idx],%[txval],#3,#1")                      /* Place bit 3 in bit 0 of idx*/
-      A("str %[sck_mask],[%[sck_port],#0x4]")              /* CODR */
-
-      /* Bit 3 */
-      A("str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]")  /* Access the proper SODR or CODR registers based on that bit */
-      A("str %[sck_mask],[%[sck_port]]")                   /* SODR */
-      A("ubfx %[idx],%[txval],#2,#1")                      /* Place bit 2 in bit 0 of idx*/
-      A("str %[sck_mask],[%[sck_port],#0x4]")              /* CODR */
-
-      /* Bit 2 */
-      A("str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]")  /* Access the proper SODR or CODR registers based on that bit */
-      A("str %[sck_mask],[%[sck_port]]")                   /* SODR */
-      A("ubfx %[idx],%[txval],#1,#1")                      /* Place bit 1 in bit 0 of idx*/
-      A("str %[sck_mask],[%[sck_port],#0x4]")              /* CODR */
-
-      /* Bit 1 */
-      A("str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]")  /* Access the proper SODR or CODR registers based on that bit */
-      A("str %[sck_mask],[%[sck_port]]")                   /* SODR */
-      A("ubfx %[idx],%[txval],#0,#1")                      /* Place bit 0 in bit 0 of idx*/
-      A("str %[sck_mask],[%[sck_port],#0x4]")              /* CODR */
-
-      /* Bit 0 */
-      A("str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]")  /* Access the proper SODR or CODR registers based on that bit */
-      A("str %[sck_mask],[%[sck_port]]")                   /* SODR */
-      A("nop")                                             /* Result will be 0 */
-      A("str %[sck_mask],[%[sck_port],#0x4]")              /* CODR */
-
-      : [idx]"+r"( idx )
-      : [txval]"r"( bout ) ,
-        [mosi_mask]"r"( MOSI_MASK ),
-        [mosi_port]"r"( MOSI_PORT_PLUS30 ),
-        [sck_mask]"r"( SCK_MASK ),
-        [sck_port]"r"( SCK_PORT_PLUS30 )
-      : "cc"
-    );
-
-    return 0;
-  }
-
-   // Calculates the bit band alias address and returns a pointer address to word.
-   // addr: The byte address of bitbanding bit.
-   // bit:  The bit position of bitbanding bit.
-  #define BITBAND_ADDRESS(addr, bit) \
-    (((uint32_t)(addr) & 0xF0000000) + 0x02000000 + ((uint32_t)(addr)&0xFFFFF)*32 + (bit)*4)
-
-  // run at ~8 .. ~10Mhz - Rx version (Tx line not altered)
-  static uint8_t spiTransferRx0(uint8_t) { // using Mode 0
-    uint32_t bin = 0;
-    uint32_t work = 0;
-    uint32_t BITBAND_MISO_PORT = BITBAND_ADDRESS( ((uint32_t)PORT(SD_MISO_PIN))+0x3C, PIN_SHIFT(SD_MISO_PIN));  /* PDSR of port in bitband area */
-    uint32_t SCK_PORT_PLUS30 = ((uint32_t) PORT(SD_SCK_PIN)) + 0x30;    /* SODR of port */
-    uint32_t SCK_MASK = PIN_MASK(SD_SCK_PIN);
-
-    /* The software SPI routine */
-    __asm__ __volatile__(
-      A(".syntax unified") // is to prevent CM0,CM1 non-unified syntax
-
-      /* bit 7 */
-      A("str %[sck_mask],[%[sck_port]]")           /* SODR */
-      A("ldr %[work],[%[bitband_miso_port]]")      /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
-      A("str %[sck_mask],[%[sck_port],#0x4]")      /* CODR */
-      A("bfi %[bin],%[work],#7,#1")                /* Store read bit as the bit 7 */
-
-      /* bit 6 */
-      A("str %[sck_mask],[%[sck_port]]")           /* SODR */
-      A("ldr %[work],[%[bitband_miso_port]]")      /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
-      A("str %[sck_mask],[%[sck_port],#0x4]")      /* CODR */
-      A("bfi %[bin],%[work],#6,#1")                /* Store read bit as the bit 6 */
-
-      /* bit 5 */
-      A("str %[sck_mask],[%[sck_port]]")           /* SODR */
-      A("ldr %[work],[%[bitband_miso_port]]")      /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
-      A("str %[sck_mask],[%[sck_port],#0x4]")      /* CODR */
-      A("bfi %[bin],%[work],#5,#1")                /* Store read bit as the bit 5 */
-
-      /* bit 4 */
-      A("str %[sck_mask],[%[sck_port]]")           /* SODR */
-      A("ldr %[work],[%[bitband_miso_port]]")      /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
-      A("str %[sck_mask],[%[sck_port],#0x4]")      /* CODR */
-      A("bfi %[bin],%[work],#4,#1")                /* Store read bit as the bit 4 */
-
-      /* bit 3 */
-      A("str %[sck_mask],[%[sck_port]]")           /* SODR */
-      A("ldr %[work],[%[bitband_miso_port]]")      /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
-      A("str %[sck_mask],[%[sck_port],#0x4]")      /* CODR */
-      A("bfi %[bin],%[work],#3,#1")                /* Store read bit as the bit 3 */
-
-      /* bit 2 */
-      A("str %[sck_mask],[%[sck_port]]")           /* SODR */
-      A("ldr %[work],[%[bitband_miso_port]]")      /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
-      A("str %[sck_mask],[%[sck_port],#0x4]")      /* CODR */
-      A("bfi %[bin],%[work],#2,#1")                /* Store read bit as the bit 2 */
-
-      /* bit 1 */
-      A("str %[sck_mask],[%[sck_port]]")           /* SODR */
-      A("ldr %[work],[%[bitband_miso_port]]")      /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
-      A("str %[sck_mask],[%[sck_port],#0x4]")      /* CODR */
-      A("bfi %[bin],%[work],#1,#1")                /* Store read bit as the bit 1 */
-
-      /* bit 0 */
-      A("str %[sck_mask],[%[sck_port]]")           /* SODR */
-      A("ldr %[work],[%[bitband_miso_port]]")      /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
-      A("str %[sck_mask],[%[sck_port],#0x4]")      /* CODR */
-      A("bfi %[bin],%[work],#0,#1")                /* Store read bit as the bit 0 */
-
-      : [bin]"+r"(bin),
-        [work]"+r"(work)
-      : [bitband_miso_port]"r"( BITBAND_MISO_PORT ),
-        [sck_mask]"r"( SCK_MASK ),
-        [sck_port]"r"( SCK_PORT_PLUS30 )
-      : "cc"
-    );
-
-    return bin;
-  }
-
-  // run at ~4Mhz
-  static uint8_t spiTransfer1(uint8_t b) { // using Mode 0
-    int bits = 8;
-    do {
-      WRITE(SD_MOSI_PIN, b & 0x80);
-      b <<= 1;        // little setup time
-
-      WRITE(SD_SCK_PIN, HIGH);
-      DELAY_NS(125);  // 10 cycles @ 84mhz
-
-      b |= (READ(SD_MISO_PIN) != 0);
-
-      WRITE(SD_SCK_PIN, LOW);
-      DELAY_NS(125);  // 10 cycles @ 84mhz
-    } while (--bits);
-    return b;
-  }
-
-  // all the others
-  static uint32_t spiDelayCyclesX4 = 4 * (F_CPU) / 1000000; // 4µs => 125khz
-
-  static uint8_t spiTransferX(uint8_t b) { // using Mode 0
-    int bits = 8;
-    do {
-      WRITE(SD_MOSI_PIN, b & 0x80);
-      b <<= 1; // little setup time
-
-      WRITE(SD_SCK_PIN, HIGH);
-      DELAY_CYCLES(spiDelayCyclesX4);
-
-      b |= (READ(SD_MISO_PIN) != 0);
-
-      WRITE(SD_SCK_PIN, LOW);
-      DELAY_CYCLES(spiDelayCyclesX4);
-    } while (--bits);
-    return b;
-  }
-
-  // Pointers to generic functions for byte transfers
-
-  /**
-   * Note: The cast is unnecessary, but without it, this file triggers a GCC 4.8.3-2014 bug.
-   * Later GCC versions do not have this problem, but at this time (May 2018) Arduino still
-   * uses that buggy and obsolete GCC version!!
-   */
-  static pfnSpiTransfer spiTransferRx = (pfnSpiTransfer)spiTransferX;
-  static pfnSpiTransfer spiTransferTx = (pfnSpiTransfer)spiTransferX;
-
-  // Block transfers run at ~8 .. ~10Mhz - Tx version (Rx data discarded)
-  static void spiTxBlock0(const uint8_t* ptr, uint32_t todo) {
-    uint32_t MOSI_PORT_PLUS30 = ((uint32_t) PORT(SD_MOSI_PIN)) + 0x30;  /* SODR of port */
-    uint32_t MOSI_MASK = PIN_MASK(SD_MOSI_PIN);
-    uint32_t SCK_PORT_PLUS30 = ((uint32_t) PORT(SD_SCK_PIN)) + 0x30;    /* SODR of port */
-    uint32_t SCK_MASK = PIN_MASK(SD_SCK_PIN);
-    uint32_t work = 0;
-    uint32_t txval = 0;
-
-    /* The software SPI routine */
-    __asm__ __volatile__(
-      A(".syntax unified") // is to prevent CM0,CM1 non-unified syntax
-
-      L("loop%=")
-      A("ldrb.w %[txval], [%[ptr]], #1")                   /* Load value to send, increment buffer */
-      A("mvn %[txval],%[txval]")                           /* Negate value */
-
-      /* Bit 7 */
-      A("ubfx %[work],%[txval],#7,#1")                     /* Place bit 7 in bit 0 of work*/
-
-      A("str %[mosi_mask],[%[mosi_port], %[work],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
-      A("str %[sck_mask],[%[sck_port]]")                   /* SODR */
-      A("ubfx %[work],%[txval],#6,#1")                     /* Place bit 6 in bit 0 of work*/
-      A("str %[sck_mask],[%[sck_port],#0x4]")              /* CODR */
-
-      /* Bit 6 */
-      A("str %[mosi_mask],[%[mosi_port], %[work],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
-      A("str %[sck_mask],[%[sck_port]]")                   /* SODR */
-      A("ubfx %[work],%[txval],#5,#1")                     /* Place bit 5 in bit 0 of work*/
-      A("str %[sck_mask],[%[sck_port],#0x4]")              /* CODR */
-
-      /* Bit 5 */
-      A("str %[mosi_mask],[%[mosi_port], %[work],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
-      A("str %[sck_mask],[%[sck_port]]")                   /* SODR */
-      A("ubfx %[work],%[txval],#4,#1")                     /* Place bit 4 in bit 0 of work*/
-      A("str %[sck_mask],[%[sck_port],#0x4]")              /* CODR */
-
-      /* Bit 4 */
-      A("str %[mosi_mask],[%[mosi_port], %[work],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
-      A("str %[sck_mask],[%[sck_port]]")                   /* SODR */
-      A("ubfx %[work],%[txval],#3,#1")                     /* Place bit 3 in bit 0 of work*/
-      A("str %[sck_mask],[%[sck_port],#0x4]")              /* CODR */
-
-      /* Bit 3 */
-      A("str %[mosi_mask],[%[mosi_port], %[work],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
-      A("str %[sck_mask],[%[sck_port]]")                   /* SODR */
-      A("ubfx %[work],%[txval],#2,#1")                     /* Place bit 2 in bit 0 of work*/
-      A("str %[sck_mask],[%[sck_port],#0x4]")              /* CODR */
-
-      /* Bit 2 */
-      A("str %[mosi_mask],[%[mosi_port], %[work],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
-      A("str %[sck_mask],[%[sck_port]]")                   /* SODR */
-      A("ubfx %[work],%[txval],#1,#1")                     /* Place bit 1 in bit 0 of work*/
-      A("str %[sck_mask],[%[sck_port],#0x4]")              /* CODR */
-
-      /* Bit 1 */
-      A("str %[mosi_mask],[%[mosi_port], %[work],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
-      A("str %[sck_mask],[%[sck_port]]")                   /* SODR */
-      A("ubfx %[work],%[txval],#0,#1")                     /* Place bit 0 in bit 0 of work*/
-      A("str %[sck_mask],[%[sck_port],#0x4]")              /* CODR */
-
-      /* Bit 0 */
-      A("str %[mosi_mask],[%[mosi_port], %[work],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
-      A("str %[sck_mask],[%[sck_port]]")                   /* SODR */
-      A("subs %[todo],#1")                                 /* Decrement count of pending words to send, update status */
-      A("str %[sck_mask],[%[sck_port],#0x4]")              /* CODR */
-      A("bne.n loop%=")                                    /* Repeat until done */
-
-      : [ptr]"+r" ( ptr ) ,
-        [todo]"+r" ( todo ) ,
-        [work]"+r"( work ) ,
-        [txval]"+r"( txval )
-      : [mosi_mask]"r"( MOSI_MASK ),
-        [mosi_port]"r"( MOSI_PORT_PLUS30 ),
-        [sck_mask]"r"( SCK_MASK ),
-        [sck_port]"r"( SCK_PORT_PLUS30 )
-      : "cc"
-    );
-  }
-
-  static void spiRxBlock0(uint8_t* ptr, uint32_t todo) {
-    uint32_t bin = 0;
-    uint32_t work = 0;
-    uint32_t BITBAND_MISO_PORT = BITBAND_ADDRESS( ((uint32_t)PORT(SD_MISO_PIN))+0x3C, PIN_SHIFT(SD_MISO_PIN));  /* PDSR of port in bitband area */
-    uint32_t SCK_PORT_PLUS30 = ((uint32_t) PORT(SD_SCK_PIN)) + 0x30;    /* SODR of port */
-    uint32_t SCK_MASK = PIN_MASK(SD_SCK_PIN);
-
-    /* The software SPI routine */
-    __asm__ __volatile__(
-      A(".syntax unified")                  // is to prevent CM0,CM1 non-unified syntax
-
-      L("loop%=")
-
-      /* bit 7 */
-      A("str %[sck_mask],[%[sck_port]]")           /* SODR */
-      A("ldr %[work],[%[bitband_miso_port]]")      /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
-      A("str %[sck_mask],[%[sck_port],#0x4]")      /* CODR */
-      A("bfi %[bin],%[work],#7,#1")                /* Store read bit as the bit 7 */
-
-      /* bit 6 */
-      A("str %[sck_mask],[%[sck_port]]")           /* SODR */
-      A("ldr %[work],[%[bitband_miso_port]]")      /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
-      A("str %[sck_mask],[%[sck_port],#0x4]")      /* CODR */
-      A("bfi %[bin],%[work],#6,#1")                /* Store read bit as the bit 6 */
-
-      /* bit 5 */
-      A("str %[sck_mask],[%[sck_port]]")           /* SODR */
-      A("ldr %[work],[%[bitband_miso_port]]")      /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
-      A("str %[sck_mask],[%[sck_port],#0x4]")      /* CODR */
-      A("bfi %[bin],%[work],#5,#1")                /* Store read bit as the bit 5 */
-
-      /* bit 4 */
-      A("str %[sck_mask],[%[sck_port]]")           /* SODR */
-      A("ldr %[work],[%[bitband_miso_port]]")      /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
-      A("str %[sck_mask],[%[sck_port],#0x4]")      /* CODR */
-      A("bfi %[bin],%[work],#4,#1")                /* Store read bit as the bit 4 */
-
-      /* bit 3 */
-      A("str %[sck_mask],[%[sck_port]]")           /* SODR */
-      A("ldr %[work],[%[bitband_miso_port]]")      /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
-      A("str %[sck_mask],[%[sck_port],#0x4]")      /* CODR */
-      A("bfi %[bin],%[work],#3,#1")                /* Store read bit as the bit 3 */
-
-      /* bit 2 */
-      A("str %[sck_mask],[%[sck_port]]")           /* SODR */
-      A("ldr %[work],[%[bitband_miso_port]]")      /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
-      A("str %[sck_mask],[%[sck_port],#0x4]")      /* CODR */
-      A("bfi %[bin],%[work],#2,#1")                /* Store read bit as the bit 2 */
-
-      /* bit 1 */
-      A("str %[sck_mask],[%[sck_port]]")           /* SODR */
-      A("ldr %[work],[%[bitband_miso_port]]")      /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
-      A("str %[sck_mask],[%[sck_port],#0x4]")      /* CODR */
-      A("bfi %[bin],%[work],#1,#1")                /* Store read bit as the bit 1 */
-
-      /* bit 0 */
-      A("str %[sck_mask],[%[sck_port]]")           /* SODR */
-      A("ldr %[work],[%[bitband_miso_port]]")      /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
-      A("str %[sck_mask],[%[sck_port],#0x4]")      /* CODR */
-      A("bfi %[bin],%[work],#0,#1")                /* Store read bit as the bit 0 */
-
-      A("subs %[todo],#1")                         /* Decrement count of pending words to send, update status */
-      A("strb.w %[bin], [%[ptr]], #1")             /* Store read value into buffer, increment buffer pointer */
-      A("bne.n loop%=")                            /* Repeat until done */
-
-      : [ptr]"+r"(ptr),
-        [todo]"+r"(todo),
-        [bin]"+r"(bin),
-        [work]"+r"(work)
-      : [bitband_miso_port]"r"( BITBAND_MISO_PORT ),
-        [sck_mask]"r"( SCK_MASK ),
-        [sck_port]"r"( SCK_PORT_PLUS30 )
-      : "cc"
-    );
-  }
-
-  static void spiTxBlockX(const uint8_t* buf, uint32_t todo) {
-    do {
-      (void)spiTransferTx(*buf++);
-    } while (--todo);
-  }
-
-  static void spiRxBlockX(uint8_t* buf, uint32_t todo) {
-    do {
-      *buf++ = spiTransferRx(0xFF);
-    } while (--todo);
-  }
-
-  // Pointers to generic functions for block tranfers
-  static pfnSpiTxBlock spiTxBlock = (pfnSpiTxBlock)spiTxBlockX;
-  static pfnSpiRxBlock spiRxBlock = (pfnSpiRxBlock)spiRxBlockX;
-
-  #if MB(ALLIGATOR)
-    #define _SS_WRITE(S) WRITE(SD_SS_PIN, S)
-  #else
-    #define _SS_WRITE(S) NOOP
-  #endif
-
-  void spiBegin() {
-    SET_OUTPUT(SD_SS_PIN);
-    _SS_WRITE(HIGH);
-    SET_OUTPUT(SD_SCK_PIN);
-    SET_INPUT(SD_MISO_PIN);
-    SET_OUTPUT(SD_MOSI_PIN);
-  }
-
-  uint8_t spiRec() {
-    _SS_WRITE(LOW);
-    WRITE(SD_MOSI_PIN, HIGH); // Output 1s 1
-    uint8_t b = spiTransferRx(0xFF);
-    _SS_WRITE(HIGH);
-    return b;
-  }
-
-  void spiRead(uint8_t* buf, uint16_t nbyte) {
-    if (nbyte) {
-      _SS_WRITE(LOW);
-      WRITE(SD_MOSI_PIN, HIGH); // Output 1s 1
-      spiRxBlock(buf, nbyte);
-      _SS_WRITE(HIGH);
-    }
-  }
-
-  void spiSend(uint8_t b) {
-    _SS_WRITE(LOW);
-    (void)spiTransferTx(b);
-    _SS_WRITE(HIGH);
-  }
-
-  void spiSendBlock(uint8_t token, const uint8_t* buf) {
-    _SS_WRITE(LOW);
-    (void)spiTransferTx(token);
-    spiTxBlock(buf, 512);
-    _SS_WRITE(HIGH);
-  }
-
-  /**
-   * spiRate should be
-   *  0 :  8 - 10 MHz
-   *  1 :  4 - 5 MHz
-   *  2 :  2 - 2.5 MHz
-   *  3 :  1 - 1.25 MHz
-   *  4 :  500 - 625 kHz
-   *  5 :  250 - 312 kHz
-   *  6 :  125 - 156 kHz
-   */
-  void spiInit(uint8_t spiRate) {
-    switch (spiRate) {
-      case 0:
-        spiTransferTx = (pfnSpiTransfer)spiTransferTx0;
-        spiTransferRx = (pfnSpiTransfer)spiTransferRx0;
-        spiTxBlock = (pfnSpiTxBlock)spiTxBlock0;
-        spiRxBlock = (pfnSpiRxBlock)spiRxBlock0;
-        break;
-      case 1:
-        spiTransferTx = (pfnSpiTransfer)spiTransfer1;
-        spiTransferRx = (pfnSpiTransfer)spiTransfer1;
-        spiTxBlock = (pfnSpiTxBlock)spiTxBlockX;
-        spiRxBlock = (pfnSpiRxBlock)spiRxBlockX;
-        break;
-      default:
-        spiDelayCyclesX4 = ((F_CPU) / 1000000) >> (6 - spiRate) << 2; // spiRate of 2 gives the maximum error with current CPU
-        spiTransferTx = (pfnSpiTransfer)spiTransferX;
-        spiTransferRx = (pfnSpiTransfer)spiTransferX;
-        spiTxBlock = (pfnSpiTxBlock)spiTxBlockX;
-        spiRxBlock = (pfnSpiRxBlock)spiRxBlockX;
-        break;
-    }
-
-    _SS_WRITE(HIGH);
-    WRITE(SD_MOSI_PIN, HIGH);
-    WRITE(SD_SCK_PIN, LOW);
-  }
-
-  /** Begin SPI transaction, set clock, bit order, data mode */
-  void spiBeginTransaction(uint32_t spiClock, uint8_t bitOrder, uint8_t dataMode) {
-    // TODO: to be implemented
-  }
-
-  #pragma GCC reset_options
-
-#else // !SOFTWARE_SPI
-
-  #define WHILE_TX(N) while ((SPI0->SPI_SR & SPI_SR_TDRE) == (N))
-  #define WHILE_RX(N) while ((SPI0->SPI_SR & SPI_SR_RDRF) == (N))
-  #define FLUSH_TX() do{ WHILE_RX(1) SPI0->SPI_RDR; }while(0)
-
-  #if MB(ALLIGATOR)
-
-    // slave selects controlled by SPI controller
-    // doesn't support changing SPI speeds for SD card
-
-    // ------------------------
-    // hardware SPI
-    // ------------------------
-    static bool spiInitialized = false;
-
-    void spiInit(uint8_t spiRate) {
-      if (spiInitialized) return;
-
-      // 8.4 MHz, 4 MHz, 2 MHz, 1 MHz, 0.5 MHz, 0.329 MHz, 0.329 MHz
-      constexpr int spiDivider[] = { 10, 21, 42, 84, 168, 255, 255 };
-      if (spiRate > 6) spiRate = 1;
-
-      // Set SPI mode 1, clock, select not active after transfer, with delay between transfers
-      SPI_ConfigureNPCS(SPI0, SPI_CHAN_DAC,
-                        SPI_CSR_CSAAT | SPI_CSR_SCBR(spiDivider[spiRate]) |
-                        SPI_CSR_DLYBCT(1));
-      // Set SPI mode 0, clock, select not active after transfer, with delay between transfers
-      SPI_ConfigureNPCS(SPI0, SPI_CHAN_EEPROM1, SPI_CSR_NCPHA |
-                        SPI_CSR_CSAAT | SPI_CSR_SCBR(spiDivider[spiRate]) |
-                        SPI_CSR_DLYBCT(1));
-
-      // Set SPI mode 0, clock, select not active after transfer, with delay between transfers
-      SPI_ConfigureNPCS(SPI0, SPI_CHAN, SPI_CSR_NCPHA |
-                        SPI_CSR_CSAAT | SPI_CSR_SCBR(spiDivider[spiRate]) |
-                        SPI_CSR_DLYBCT(1));
-      SPI_Enable(SPI0);
-      spiInitialized = true;
-    }
-
-    void spiBegin() {
-      if (spiInitialized) return;
-
-      // Configure SPI pins
-      PIO_Configure(
-         g_APinDescription[SD_SCK_PIN].pPort,
-         g_APinDescription[SD_SCK_PIN].ulPinType,
-         g_APinDescription[SD_SCK_PIN].ulPin,
-         g_APinDescription[SD_SCK_PIN].ulPinConfiguration);
-      PIO_Configure(
-         g_APinDescription[SD_MOSI_PIN].pPort,
-         g_APinDescription[SD_MOSI_PIN].ulPinType,
-         g_APinDescription[SD_MOSI_PIN].ulPin,
-         g_APinDescription[SD_MOSI_PIN].ulPinConfiguration);
-      PIO_Configure(
-         g_APinDescription[SD_MISO_PIN].pPort,
-         g_APinDescription[SD_MISO_PIN].ulPinType,
-         g_APinDescription[SD_MISO_PIN].ulPin,
-         g_APinDescription[SD_MISO_PIN].ulPinConfiguration);
-
-      // set master mode, peripheral select, fault detection
-      SPI_Configure(SPI0, ID_SPI0, SPI_MR_MSTR | SPI_MR_MODFDIS | SPI_MR_PS);
-      SPI_Enable(SPI0);
-
-      SET_OUTPUT(DAC0_SYNC);
-      #if HAS_MULTI_EXTRUDER
-        SET_OUTPUT(DAC1_SYNC);
-        WRITE(DAC1_SYNC, HIGH);
-      #endif
-      SET_OUTPUT(SPI_EEPROM1_CS);
-      SET_OUTPUT(SPI_EEPROM2_CS);
-      SET_OUTPUT(SPI_FLASH_CS);
-      WRITE(DAC0_SYNC, HIGH);
-      WRITE(SPI_EEPROM1_CS, HIGH);
-      WRITE(SPI_EEPROM2_CS, HIGH);
-      WRITE(SPI_FLASH_CS, HIGH);
-      WRITE(SD_SS_PIN, HIGH);
-
-      OUT_WRITE(SDSS, LOW);
-
-      PIO_Configure(
-        g_APinDescription[SPI_PIN].pPort,
-        g_APinDescription[SPI_PIN].ulPinType,
-        g_APinDescription[SPI_PIN].ulPin,
-        g_APinDescription[SPI_PIN].ulPinConfiguration
-      );
-
-      spiInit(1);
-    }
-
-    // Read single byte from SPI
-    uint8_t spiRec() {
-      // write dummy byte with address and end transmission flag
-      SPI0->SPI_TDR = 0x000000FF | SPI_PCS(SPI_CHAN) | SPI_TDR_LASTXFER;
-
-      WHILE_TX(0);
-      WHILE_RX(0);
-
-      //DELAY_US(1U);
-      return SPI0->SPI_RDR;
-    }
-
-    uint8_t spiRec(uint32_t chan) {
-
-      WHILE_TX(0);
-      FLUSH_RX();
-
-      // write dummy byte with address and end transmission flag
-      SPI0->SPI_TDR = 0x000000FF | SPI_PCS(chan) | SPI_TDR_LASTXFER;
-      WHILE_RX(0);
-
-      return SPI0->SPI_RDR;
-    }
-
-    // Read from SPI into buffer
-    void spiRead(uint8_t* buf, uint16_t nbyte) {
-      if (!nbyte) return;
-      --nbyte;
-      for (int i = 0; i < nbyte; i++) {
-        //WHILE_TX(0);
-        SPI0->SPI_TDR = 0x000000FF | SPI_PCS(SPI_CHAN);
-        WHILE_RX(0);
-        buf[i] = SPI0->SPI_RDR;
-        //DELAY_US(1U);
-      }
-      buf[nbyte] = spiRec();
-    }
-
-    // Write single byte to SPI
-    void spiSend(const byte b) {
-      // write byte with address and end transmission flag
-      SPI0->SPI_TDR = (uint32_t)b | SPI_PCS(SPI_CHAN) | SPI_TDR_LASTXFER;
-      WHILE_TX(0);
-      WHILE_RX(0);
-      SPI0->SPI_RDR;
-      //DELAY_US(1U);
-    }
-
-    void spiSend(const uint8_t* buf, size_t nbyte) {
-      if (!nbyte) return;
-      --nbyte;
-      for (size_t i = 0; i < nbyte; i++) {
-        SPI0->SPI_TDR = (uint32_t)buf[i] | SPI_PCS(SPI_CHAN);
-        WHILE_TX(0);
-        WHILE_RX(0);
-        SPI0->SPI_RDR;
-        //DELAY_US(1U);
-      }
-      spiSend(buf[nbyte]);
-    }
-
-    void spiSend(uint32_t chan, byte b) {
-      WHILE_TX(0);
-      // write byte with address and end transmission flag
-      SPI0->SPI_TDR = (uint32_t)b | SPI_PCS(chan) | SPI_TDR_LASTXFER;
-      WHILE_RX(0);
-      FLUSH_RX();
-    }
-
-    void spiSend(uint32_t chan, const uint8_t* buf, size_t nbyte) {
-      if (!nbyte) return;
-      --nbyte;
-      for (size_t i = 0; i < nbyte; i++) {
-        WHILE_TX(0);
-        SPI0->SPI_TDR = (uint32_t)buf[i] | SPI_PCS(chan);
-        WHILE_RX(0);
-        FLUSH_RX();
-      }
-      spiSend(chan, buf[nbyte]);
-    }
-
-    // Write from buffer to SPI
-    void spiSendBlock(uint8_t token, const uint8_t* buf) {
-      SPI0->SPI_TDR = (uint32_t)token | SPI_PCS(SPI_CHAN);
-      WHILE_TX(0);
-      //WHILE_RX(0);
-      //SPI0->SPI_RDR;
-      for (int i = 0; i < 511; i++) {
-        SPI0->SPI_TDR = (uint32_t)buf[i] | SPI_PCS(SPI_CHAN);
-        WHILE_TX(0);
-        WHILE_RX(0);
-        SPI0->SPI_RDR;
-        //DELAY_US(1U);
-      }
-      spiSend(buf[511]);
-    }
-
-    /** Begin SPI transaction, set clock, bit order, data mode */
-    void spiBeginTransaction(uint32_t spiClock, uint8_t bitOrder, uint8_t dataMode) {
-      // TODO: to be implemented
-    }
-
-  #else // U8G compatible hardware SPI
-
-    #define SPI_MODE_0_DUE_HW 2  // DUE CPHA control bit is inverted
-    #define SPI_MODE_1_DUE_HW 3
-    #define SPI_MODE_2_DUE_HW 0
-    #define SPI_MODE_3_DUE_HW 1
-
-    /**
-     *  The DUE SPI controller is set up so the upper word of the longword
-     *  written to the transmit data register selects which SPI Chip Select
-     *  Register is used. This allows different streams to have different SPI
-     *  settings.
-     *
-     *  In practice it's spooky. Some combinations hang the system, while others
-     *  upset the peripheral device.
-     *
-     *  SPI mode should be the same for all streams. The FYSETC_MINI_12864 gets
-     *  upset if the clock phase changes after chip select goes active.
-     *
-     *  SPI_CSR_CSAAT should be set for all streams. If not the WHILE_TX(0)
-     *  macro returns immediately which can result in the SPI chip select going
-     *  inactive before all the data has been sent.
-     *
-     *  The TMC2130 library uses SPI0->SPI_CSR[3].
-     *
-     *  The U8G hardware SPI uses SPI0->SPI_CSR[0]. The system hangs and/or the
-     *  FYSETC_MINI_12864 gets upset if lower baud rates are used and the SD card
-     *  is inserted or removed.
-     *
-     *  The SD card uses SPI0->SPI_CSR[3]. Efforts were made to use [1] and [2]
-     *  but they all resulted in hangs or garbage on the LCD.
-     *
-     *  The SPI controlled chip selects are NOT enabled in the GPIO controller.
-     *  The application must control the chip select.
-     *
-     *  All of the above can be avoided by defining FORCE_SOFT_SPI to force the
-     *  display to use software SPI.
-     */
-
-    void spiInit(uint8_t spiRate=6) {  // Default to slowest rate if not specified)
-                                       // Also sets U8G SPI rate to 4MHz and the SPI mode to 3
-
-      // 8.4 MHz, 4 MHz, 2 MHz, 1 MHz, 0.5 MHz, 0.329 MHz, 0.329 MHz
-      constexpr int spiDivider[] = { 10, 21, 42, 84, 168, 255, 255 };
-      if (spiRate > 6) spiRate = 1;
-
-      // Enable PIOA and SPI0
-      REG_PMC_PCER0 = (1UL << ID_PIOA) | (1UL << ID_SPI0);
-
-      // Disable PIO on A26 and A27
-      REG_PIOA_PDR = 0x0C000000;
-      OUT_WRITE(SDSS, HIGH);
-
-      // Reset SPI0 (from sam lib)
-      SPI0->SPI_CR = SPI_CR_SPIDIS;
-      SPI0->SPI_CR = SPI_CR_SWRST;
-      SPI0->SPI_CR = SPI_CR_SWRST;
-      SPI0->SPI_CR = SPI_CR_SPIEN;
-
-      // TMC2103 compatible setup
-      // Master mode, no fault detection, PCS bits in data written to TDR select CSR register
-      SPI0->SPI_MR = SPI_MR_MSTR | SPI_MR_PS | SPI_MR_MODFDIS;
-      // SPI mode 3, 8 Bit data transfer, baud rate
-      SPI0->SPI_CSR[3] = SPI_CSR_SCBR(spiDivider[spiRate]) | SPI_CSR_CSAAT | SPI_MODE_3_DUE_HW;  // use same CSR as TMC2130
-      SPI0->SPI_CSR[0] = SPI_CSR_SCBR(spiDivider[1]) | SPI_CSR_CSAAT | SPI_MODE_3_DUE_HW;  // U8G default to 4MHz
-    }
-
-    void spiBegin() { spiInit(); }
-
-    static uint8_t spiTransfer(uint8_t data) {
-      WHILE_TX(0);
-      SPI0->SPI_TDR = (uint32_t)data | 0x00070000UL;  // Add TMC2130 PCS bits to every byte (use SPI0->SPI_CSR[3])
-      WHILE_TX(0);
-      WHILE_RX(0);
-      return SPI0->SPI_RDR;
-    }
-
-    uint8_t spiRec() { return (uint8_t)spiTransfer(0xFF); }
-
-    void spiRead(uint8_t* buf, uint16_t nbyte) {
-      for (int i = 0; i < nbyte; i++)
-        buf[i] = spiTransfer(0xFF);
-    }
-
-    void spiSend(uint8_t data) { spiTransfer(data); }
-
-    void spiSend(const uint8_t* buf, size_t nbyte) {
-      for (uint16_t i = 0; i < nbyte; i++)
-        spiTransfer(buf[i]);
-    }
-
-    void spiSendBlock(uint8_t token, const uint8_t* buf) {
-      spiTransfer(token);
-      for (uint16_t i = 0; i < 512; i++)
-        spiTransfer(buf[i]);
-    }
-
-  #endif // !ALLIGATOR
-#endif // !SOFTWARE_SPI
-
-#endif // ARDUINO_ARCH_SAM

Marlin/src/HAL/DUE/MarlinSerial.cpp

@@ -1,489 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
-/**
- * MarlinSerial_Due.cpp - Hardware serial library for Arduino DUE
- * Copyright (c) 2017 Eduardo José Tagle. All right reserved
- * Based on MarlinSerial for AVR, copyright (c) 2006 Nicholas Zambetti.  All right reserved.
- */
-#ifdef ARDUINO_ARCH_SAM
-
-#include "../../inc/MarlinConfig.h"
-
-#include "MarlinSerial.h"
-#include "InterruptVectors.h"
-#include "../../MarlinCore.h"
-
-template<typename Cfg> typename MarlinSerial<Cfg>::ring_buffer_r MarlinSerial<Cfg>::rx_buffer = { 0, 0, { 0 } };
-template<typename Cfg> typename MarlinSerial<Cfg>::ring_buffer_t MarlinSerial<Cfg>::tx_buffer = { 0 };
-template<typename Cfg> bool     MarlinSerial<Cfg>::_written = false;
-template<typename Cfg> uint8_t  MarlinSerial<Cfg>::xon_xoff_state = MarlinSerial<Cfg>::XON_XOFF_CHAR_SENT | MarlinSerial<Cfg>::XON_CHAR;
-template<typename Cfg> uint8_t  MarlinSerial<Cfg>::rx_dropped_bytes = 0;
-template<typename Cfg> uint8_t  MarlinSerial<Cfg>::rx_buffer_overruns = 0;
-template<typename Cfg> uint8_t  MarlinSerial<Cfg>::rx_framing_errors = 0;
-template<typename Cfg> typename MarlinSerial<Cfg>::ring_buffer_pos_t MarlinSerial<Cfg>::rx_max_enqueued = 0;
-
-// A SW memory barrier, to ensure GCC does not overoptimize loops
-#define sw_barrier() asm volatile("": : :"memory");
-
-#include "../../feature/e_parser.h"
-
-// (called with RX interrupts disabled)
-template<typename Cfg>
-FORCE_INLINE void MarlinSerial<Cfg>::store_rxd_char() {
-
-  static EmergencyParser::State emergency_state; // = EP_RESET
-
-  // Get the tail - Nothing can alter its value while we are at this ISR
-  const ring_buffer_pos_t t = rx_buffer.tail;
-
-  // Get the head pointer
-  ring_buffer_pos_t h = rx_buffer.head;
-
-  // Get the next element
-  ring_buffer_pos_t i = (ring_buffer_pos_t)(h + 1) & (ring_buffer_pos_t)(Cfg::RX_SIZE - 1);
-
-  // Read the character from the USART
-  uint8_t c = HWUART->UART_RHR;
-
-  if (Cfg::EMERGENCYPARSER) emergency_parser.update(emergency_state, c);
-
-  // If the character is to be stored at the index just before the tail
-  // (such that the head would advance to the current tail), the RX FIFO is
-  // full, so don't write the character or advance the head.
-  if (i != t) {
-    rx_buffer.buffer[h] = c;
-    h = i;
-  }
-  else if (Cfg::DROPPED_RX && !++rx_dropped_bytes)
-    --rx_dropped_bytes;
-
-  const ring_buffer_pos_t rx_count = (ring_buffer_pos_t)(h - t) & (ring_buffer_pos_t)(Cfg::RX_SIZE - 1);
-  // Calculate count of bytes stored into the RX buffer
-
-  // Keep track of the maximum count of enqueued bytes
-  if (Cfg::MAX_RX_QUEUED) NOLESS(rx_max_enqueued, rx_count);
-
-  if (Cfg::XONOFF) {
-    // If the last char that was sent was an XON
-    if ((xon_xoff_state & XON_XOFF_CHAR_MASK) == XON_CHAR) {
-
-      // Bytes stored into the RX buffer
-      const ring_buffer_pos_t rx_count = (ring_buffer_pos_t)(h - t) & (ring_buffer_pos_t)(Cfg::RX_SIZE - 1);
-
-      // If over 12.5% of RX buffer capacity, send XOFF before running out of
-      // RX buffer space .. 325 bytes @ 250kbits/s needed to let the host react
-      // and stop sending bytes. This translates to 13mS propagation time.
-      if (rx_count >= (Cfg::RX_SIZE) / 8) {
-
-        // At this point, definitely no TX interrupt was executing, since the TX isr can't be preempted.
-        // Don't enable the TX interrupt here as a means to trigger the XOFF char, because if it happens
-        // to be in the middle of trying to disable the RX interrupt in the main program, eventually the
-        // enabling of the TX interrupt could be undone. The ONLY reliable thing this can do to ensure
-        // the sending of the XOFF char is to send it HERE AND NOW.
-
-        // About to send the XOFF char
-        xon_xoff_state = XOFF_CHAR | XON_XOFF_CHAR_SENT;
-
-        // Wait until the TX register becomes empty and send it - Here there could be a problem
-        // - While waiting for the TX register to empty, the RX register could receive a new
-        //   character. This must also handle that situation!
-        uint32_t status;
-        while (!((status = HWUART->UART_SR) & UART_SR_TXRDY)) {
-
-          if (status & UART_SR_RXRDY) {
-            // We received a char while waiting for the TX buffer to be empty - Receive and process it!
-
-            i = (ring_buffer_pos_t)(h + 1) & (ring_buffer_pos_t)(Cfg::RX_SIZE - 1);
-
-            // Read the character from the USART
-            c = HWUART->UART_RHR;
-
-            if (Cfg::EMERGENCYPARSER) emergency_parser.update(emergency_state, c);
-
-            // If the character is to be stored at the index just before the tail
-            // (such that the head would advance to the current tail), the FIFO is
-            // full, so don't write the character or advance the head.
-            if (i != t) {
-              rx_buffer.buffer[h] = c;
-              h = i;
-            }
-            else if (Cfg::DROPPED_RX && !++rx_dropped_bytes)
-              --rx_dropped_bytes;
-          }
-          sw_barrier();
-        }
-
-        HWUART->UART_THR = XOFF_CHAR;
-
-        // At this point there could be a race condition between the write() function
-        // and this sending of the XOFF char. This interrupt could happen between the
-        // wait to be empty TX buffer loop and the actual write of the character. Since
-        // the TX buffer is full because it's sending the XOFF char, the only way to be
-        // sure the write() function will succeed is to wait for the XOFF char to be
-        // completely sent. Since an extra character could be received during the wait
-        // it must also be handled!
-        while (!((status = HWUART->UART_SR) & UART_SR_TXRDY)) {
-
-          if (status & UART_SR_RXRDY) {
-            // A char arrived while waiting for the TX buffer to be empty - Receive and process it!
-
-            i = (ring_buffer_pos_t)(h + 1) & (ring_buffer_pos_t)(Cfg::RX_SIZE - 1);
-
-            // Read the character from the USART
-            c = HWUART->UART_RHR;
-
-            if (Cfg::EMERGENCYPARSER) emergency_parser.update(emergency_state, c);
-
-            // If the character is to be stored at the index just before the tail
-            // (such that the head would advance to the current tail), the FIFO is
-            // full, so don't write the character or advance the head.
-            if (i != t) {
-              rx_buffer.buffer[h] = c;
-              h = i;
-            }
-            else if (Cfg::DROPPED_RX && !++rx_dropped_bytes)
-              --rx_dropped_bytes;
-          }
-          sw_barrier();
-        }
-
-        // At this point everything is ready. The write() function won't
-        // have any issues writing to the UART TX register if it needs to!
-      }
-    }
-  }
-
-  // Store the new head value
-  rx_buffer.head = h;
-}
-
-template<typename Cfg>
-FORCE_INLINE void MarlinSerial<Cfg>::_tx_thr_empty_irq() {
-  if (Cfg::TX_SIZE > 0) {
-    // Read positions
-    uint8_t t = tx_buffer.tail;
-    const uint8_t h = tx_buffer.head;
-
-    if (Cfg::XONOFF) {
-      // If an XON char is pending to be sent, do it now
-      if (xon_xoff_state == XON_CHAR) {
-
-        // Send the character
-        HWUART->UART_THR = XON_CHAR;
-
-        // Remember we sent it.
-        xon_xoff_state = XON_CHAR | XON_XOFF_CHAR_SENT;
-
-        // If nothing else to transmit, just disable TX interrupts.
-        if (h == t) HWUART->UART_IDR = UART_IDR_TXRDY;
-
-        return;
-      }
-    }
-
-    // If nothing to transmit, just disable TX interrupts. This could
-    // happen as the result of the non atomicity of the disabling of RX
-    // interrupts that could end reenabling TX interrupts as a side effect.
-    if (h == t) {
-      HWUART->UART_IDR = UART_IDR_TXRDY;
-      return;
-    }
-
-    // There is something to TX, Send the next byte
-    const uint8_t c = tx_buffer.buffer[t];
-    t = (t + 1) & (Cfg::TX_SIZE - 1);
-    HWUART->UART_THR = c;
-    tx_buffer.tail = t;
-
-    // Disable interrupts if there is nothing to transmit following this byte
-    if (h == t) HWUART->UART_IDR = UART_IDR_TXRDY;
-  }
-}
-
-template<typename Cfg>
-void MarlinSerial<Cfg>::UART_ISR() {
-  const uint32_t status = HWUART->UART_SR;
-
-  // Data received?
-  if (status & UART_SR_RXRDY) store_rxd_char();
-
-  if (Cfg::TX_SIZE > 0) {
-    // Something to send, and TX interrupts are enabled (meaning something to send)?
-    if ((status & UART_SR_TXRDY) && (HWUART->UART_IMR & UART_IMR_TXRDY)) _tx_thr_empty_irq();
-  }
-
-  // Acknowledge errors
-  if ((status & UART_SR_OVRE) || (status & UART_SR_FRAME)) {
-    if (Cfg::DROPPED_RX && (status & UART_SR_OVRE) && !++rx_dropped_bytes) --rx_dropped_bytes;
-    if (Cfg::RX_OVERRUNS && (status & UART_SR_OVRE) && !++rx_buffer_overruns) --rx_buffer_overruns;
-    if (Cfg::RX_FRAMING_ERRORS && (status & UART_SR_FRAME) && !++rx_framing_errors) --rx_framing_errors;
-
-    // TODO: error reporting outside ISR
-    HWUART->UART_CR = UART_CR_RSTSTA;
-  }
-}
-
-// Public Methods
-template<typename Cfg>
-void MarlinSerial<Cfg>::begin(const long baud_setting) {
-
-  // Disable UART interrupt in NVIC
-  NVIC_DisableIRQ( HWUART_IRQ );
-
-  // We NEED memory barriers to ensure Interrupts are actually disabled!
-  // ( https://dzone.com/articles/nvic-disabling-interrupts-on-arm-cortex-m-and-the )
-  __DSB();
-  __ISB();
-
-  // Disable clock
-  pmc_disable_periph_clk( HWUART_IRQ_ID );
-
-  // Configure PMC
-  pmc_enable_periph_clk( HWUART_IRQ_ID );
-
-  // Disable PDC channel
-  HWUART->UART_PTCR = UART_PTCR_RXTDIS | UART_PTCR_TXTDIS;
-
-  // Reset and disable receiver and transmitter
-  HWUART->UART_CR = UART_CR_RSTRX | UART_CR_RSTTX | UART_CR_RXDIS | UART_CR_TXDIS;
-
-  // Configure mode: 8bit, No parity, 1 bit stop
-  HWUART->UART_MR = UART_MR_CHMODE_NORMAL | US_MR_CHRL_8_BIT | US_MR_NBSTOP_1_BIT | UART_MR_PAR_NO;
-
-  // Configure baudrate (asynchronous, no oversampling)
-  HWUART->UART_BRGR = (SystemCoreClock / (baud_setting << 4));
-
-  // Configure interrupts
-  HWUART->UART_IDR = 0xFFFFFFFF;
-  HWUART->UART_IER = UART_IER_RXRDY | UART_IER_OVRE | UART_IER_FRAME;
-
-  // Install interrupt handler
-  install_isr(HWUART_IRQ, UART_ISR);
-
-  // Configure priority. We need a very high priority to avoid losing characters
-  // and we need to be able to preempt the Stepper ISR and everything else!
-  // (this could probably be fixed by using DMA with the Serial port)
-  NVIC_SetPriority(HWUART_IRQ, 1);
-
-  // Enable UART interrupt in NVIC
-  NVIC_EnableIRQ(HWUART_IRQ);
-
-  // Enable receiver and transmitter
-  HWUART->UART_CR = UART_CR_RXEN | UART_CR_TXEN;
-
-  if (Cfg::TX_SIZE > 0) _written = false;
-}
-
-template<typename Cfg>
-void MarlinSerial<Cfg>::end() {
-  // Disable UART interrupt in NVIC
-  NVIC_DisableIRQ( HWUART_IRQ );
-
-  // We NEED memory barriers to ensure Interrupts are actually disabled!
-  // ( https://dzone.com/articles/nvic-disabling-interrupts-on-arm-cortex-m-and-the )
-  __DSB();
-  __ISB();
-
-  pmc_disable_periph_clk( HWUART_IRQ_ID );
-}
-
-template<typename Cfg>
-int MarlinSerial<Cfg>::peek() {
-  const int v = rx_buffer.head == rx_buffer.tail ? -1 : rx_buffer.buffer[rx_buffer.tail];
-  return v;
-}
-
-template<typename Cfg>
-int MarlinSerial<Cfg>::read() {
-
-  const ring_buffer_pos_t h = rx_buffer.head;
-  ring_buffer_pos_t t = rx_buffer.tail;
-
-  if (h == t) return -1;
-
-  int v = rx_buffer.buffer[t];
-  t = (ring_buffer_pos_t)(t + 1) & (Cfg::RX_SIZE - 1);
-
-  // Advance tail
-  rx_buffer.tail = t;
-
-  if (Cfg::XONOFF) {
-    // If the XOFF char was sent, or about to be sent...
-    if ((xon_xoff_state & XON_XOFF_CHAR_MASK) == XOFF_CHAR) {
-      // Get count of bytes in the RX buffer
-      const ring_buffer_pos_t rx_count = (ring_buffer_pos_t)(h - t) & (ring_buffer_pos_t)(Cfg::RX_SIZE - 1);
-      // When below 10% of RX buffer capacity, send XON before running out of RX buffer bytes
-      if (rx_count < (Cfg::RX_SIZE) / 10) {
-        if (Cfg::TX_SIZE > 0) {
-          // Signal we want an XON character to be sent.
-          xon_xoff_state = XON_CHAR;
-          // Enable TX isr.
-          HWUART->UART_IER = UART_IER_TXRDY;
-        }
-        else {
-          // If not using TX interrupts, we must send the XON char now
-          xon_xoff_state = XON_CHAR | XON_XOFF_CHAR_SENT;
-          while (!(HWUART->UART_SR & UART_SR_TXRDY)) sw_barrier();
-          HWUART->UART_THR = XON_CHAR;
-        }
-      }
-    }
-  }
-
-  return v;
-}
-
-template<typename Cfg>
-typename MarlinSerial<Cfg>::ring_buffer_pos_t MarlinSerial<Cfg>::available() {
-  const ring_buffer_pos_t h = rx_buffer.head, t = rx_buffer.tail;
-  return (ring_buffer_pos_t)(Cfg::RX_SIZE + h - t) & (Cfg::RX_SIZE - 1);
-}
-
-template<typename Cfg>
-void MarlinSerial<Cfg>::flush() {
-  rx_buffer.tail = rx_buffer.head;
-
-  if (Cfg::XONOFF) {
-    if ((xon_xoff_state & XON_XOFF_CHAR_MASK) == XOFF_CHAR) {
-      if (Cfg::TX_SIZE > 0) {
-        // Signal we want an XON character to be sent.
-        xon_xoff_state = XON_CHAR;
-        // Enable TX isr.
-        HWUART->UART_IER = UART_IER_TXRDY;
-      }
-      else {
-        // If not using TX interrupts, we must send the XON char now
-        xon_xoff_state = XON_CHAR | XON_XOFF_CHAR_SENT;
-        while (!(HWUART->UART_SR & UART_SR_TXRDY)) sw_barrier();
-        HWUART->UART_THR = XON_CHAR;
-      }
-    }
-  }
-}
-
-template<typename Cfg>
-size_t MarlinSerial<Cfg>::write(const uint8_t c) {
-  _written = true;
-
-  if (Cfg::TX_SIZE == 0) {
-    while (!(HWUART->UART_SR & UART_SR_TXRDY)) sw_barrier();
-    HWUART->UART_THR = c;
-  }
-  else {
-
-    // If the TX interrupts are disabled and the data register
-    // is empty, just write the byte to the data register and
-    // be done. This shortcut helps significantly improve the
-    // effective datarate at high (>500kbit/s) bitrates, where
-    // interrupt overhead becomes a slowdown.
-    // Yes, there is a race condition between the sending of the
-    // XOFF char at the RX isr, but it is properly handled there
-    if (!(HWUART->UART_IMR & UART_IMR_TXRDY) && (HWUART->UART_SR & UART_SR_TXRDY)) {
-      HWUART->UART_THR = c;
-      return 1;
-    }
-
-    const uint8_t i = (tx_buffer.head + 1) & (Cfg::TX_SIZE - 1);
-
-    // If global interrupts are disabled (as the result of being called from an ISR)...
-    if (!ISRS_ENABLED()) {
-
-      // Make room by polling if it is possible to transmit, and do so!
-      while (i == tx_buffer.tail) {
-        // If we can transmit another byte, do it.
-        if (HWUART->UART_SR & UART_SR_TXRDY) _tx_thr_empty_irq();
-        // Make sure compiler rereads tx_buffer.tail
-        sw_barrier();
-      }
-    }
-    else {
-      // Interrupts are enabled, just wait until there is space
-      while (i == tx_buffer.tail) sw_barrier();
-    }
-
-    // Store new char. head is always safe to move
-    tx_buffer.buffer[tx_buffer.head] = c;
-    tx_buffer.head = i;
-
-    // Enable TX isr - Non atomic, but it will eventually enable TX isr
-    HWUART->UART_IER = UART_IER_TXRDY;
-  }
-  return 1;
-}
-
-template<typename Cfg>
-void MarlinSerial<Cfg>::flushTX() {
-  // TX
-
-  if (Cfg::TX_SIZE == 0) {
-    // No bytes written, no need to flush. This special case is needed since there's
-    // no way to force the TXC (transmit complete) bit to 1 during initialization.
-    if (!_written) return;
-
-    // Wait until everything was transmitted
-    while (!(HWUART->UART_SR & UART_SR_TXEMPTY)) sw_barrier();
-
-    // At this point nothing is queued anymore (DRIE is disabled) and
-    // the hardware finished transmission (TXC is set).
-
-  }
-  else {
-    // If we have never written a byte, no need to flush. This special
-    // case is needed since there is no way to force the TXC (transmit
-    // complete) bit to 1 during initialization
-    if (!_written) return;
-
-    // If global interrupts are disabled (as the result of being called from an ISR)...
-    if (!ISRS_ENABLED()) {
-
-      // Wait until everything was transmitted - We must do polling, as interrupts are disabled
-      while (tx_buffer.head != tx_buffer.tail || !(HWUART->UART_SR & UART_SR_TXEMPTY)) {
-        // If there is more space, send an extra character
-        if (HWUART->UART_SR & UART_SR_TXRDY) _tx_thr_empty_irq();
-        sw_barrier();
-      }
-
-    }
-    else {
-      // Wait until everything was transmitted
-      while (tx_buffer.head != tx_buffer.tail || !(HWUART->UART_SR & UART_SR_TXEMPTY)) sw_barrier();
-    }
-
-    // At this point nothing is queued anymore (DRIE is disabled) and
-    // the hardware finished transmission (TXC is set).
-  }
-}
-
-
-// If not using the USB port as serial port
-#if SERIAL_PORT >= 0
-  template class MarlinSerial< MarlinSerialCfg<SERIAL_PORT> >;
-  MSerialT customizedSerial1(MarlinSerialCfg<SERIAL_PORT>::EMERGENCYPARSER);
-#endif
-
-#if defined(SERIAL_PORT_2) && SERIAL_PORT_2 >= 0
-  template class MarlinSerial< MarlinSerialCfg<SERIAL_PORT_2> >;
-  MSerialT2 customizedSerial2(MarlinSerialCfg<SERIAL_PORT_2>::EMERGENCYPARSER);
-#endif
-
-#endif // ARDUINO_ARCH_SAM

Marlin/src/HAL/DUE/MarlinSerial.h

@@ -1,151 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-/**
- * MarlinSerial_Due.h - Hardware serial library for Arduino DUE
- * Copyright (c) 2017 Eduardo José Tagle. All right reserved
- * Based on MarlinSerial for AVR, copyright (c) 2006 Nicholas Zambetti.  All right reserved.
- */
-
-#include <WString.h>
-
-#include "../../inc/MarlinConfigPre.h"
-#include "../../core/serial_hook.h"
-
-// Define constants and variables for buffering incoming serial data.  We're
-// using a ring buffer (I think), in which rx_buffer_head is the index of the
-// location to which to write the next incoming character and rx_buffer_tail
-// is the index of the location from which to read.
-// 256 is the max limit due to uint8_t head and tail. Use only powers of 2. (...,16,32,64,128,256)
-#ifndef RX_BUFFER_SIZE
-  #define RX_BUFFER_SIZE 128
-#endif
-#ifndef TX_BUFFER_SIZE
-  #define TX_BUFFER_SIZE 32
-#endif
-
-//#if ENABLED(SERIAL_XON_XOFF) && RX_BUFFER_SIZE < 1024
-//  #error "SERIAL_XON_XOFF requires RX_BUFFER_SIZE >= 1024 for reliable transfers without drops."
-//#elif RX_BUFFER_SIZE && (RX_BUFFER_SIZE < 2 || !IS_POWER_OF_2(RX_BUFFER_SIZE))
-//  #error "RX_BUFFER_SIZE must be a power of 2 greater than 1."
-//#elif TX_BUFFER_SIZE && (TX_BUFFER_SIZE < 2 || TX_BUFFER_SIZE > 256 || !IS_POWER_OF_2(TX_BUFFER_SIZE))
-//  #error "TX_BUFFER_SIZE must be 0, a power of 2 greater than 1, and no greater than 256."
-//#endif
-
-// Templated type selector
-template<bool b, typename T, typename F> struct TypeSelector { typedef T type;} ;
-template<typename T, typename F> struct TypeSelector<false, T, F> { typedef F type; };
-
-// Templated structure wrapper
-template<typename S, unsigned int addr> struct StructWrapper {
-  constexpr StructWrapper(int) {}
-  FORCE_INLINE S* operator->() const { return (S*)addr; }
-};
-
-template<typename Cfg>
-class MarlinSerial {
-protected:
-  // Information for all supported UARTs
-  static constexpr uint32_t BASES[] = {0x400E0800U, 0x40098000U, 0x4009C000U, 0x400A0000U, 0x400A4000U};
-  static constexpr IRQn_Type IRQS[] = {  UART_IRQn, USART0_IRQn, USART1_IRQn, USART2_IRQn, USART3_IRQn};
-  static constexpr int    IRQ_IDS[] = {    ID_UART,   ID_USART0,   ID_USART1,   ID_USART2,   ID_USART3};
-
-  // Alias for shorter code
-  static constexpr StructWrapper<Uart,BASES[Cfg::PORT]> HWUART = 0;
-  static constexpr IRQn_Type HWUART_IRQ = IRQS[Cfg::PORT];
-  static constexpr int HWUART_IRQ_ID = IRQ_IDS[Cfg::PORT];
-
-  // Base size of type on buffer size
-  typedef typename TypeSelector<(Cfg::RX_SIZE>256), uint16_t, uint8_t>::type ring_buffer_pos_t;
-
-  struct ring_buffer_r {
-    volatile ring_buffer_pos_t head, tail;
-    unsigned char buffer[Cfg::RX_SIZE];
-  };
-
-  struct ring_buffer_t {
-    volatile uint8_t head, tail;
-    unsigned char buffer[Cfg::TX_SIZE];
-  };
-
-  static ring_buffer_r rx_buffer;
-  static ring_buffer_t tx_buffer;
-  static bool _written;
-
-  static constexpr uint8_t XON_XOFF_CHAR_SENT = 0x80,  // XON / XOFF Character was sent
-                           XON_XOFF_CHAR_MASK = 0x1F;  // XON / XOFF character to send
-
-  // XON / XOFF character definitions
-  static constexpr uint8_t XON_CHAR  = 17, XOFF_CHAR = 19;
-  static uint8_t xon_xoff_state,
-                 rx_dropped_bytes,
-                 rx_buffer_overruns,
-                 rx_framing_errors;
-  static ring_buffer_pos_t rx_max_enqueued;
-
-  FORCE_INLINE static void store_rxd_char();
-  FORCE_INLINE static void _tx_thr_empty_irq();
-  static void UART_ISR();
-
-public:
-  MarlinSerial() {};
-  static void begin(const long);
-  static void end();
-  static int peek();
-  static int read();
-  static void flush();
-  static ring_buffer_pos_t available();
-  static size_t write(const uint8_t c);
-  static void flushTX();
-
-  static inline bool emergency_parser_enabled() { return Cfg::EMERGENCYPARSER; }
-
-  FORCE_INLINE static uint8_t dropped() { return Cfg::DROPPED_RX ? rx_dropped_bytes : 0; }
-  FORCE_INLINE static uint8_t buffer_overruns() { return Cfg::RX_OVERRUNS ? rx_buffer_overruns : 0; }
-  FORCE_INLINE static uint8_t framing_errors() { return Cfg::RX_FRAMING_ERRORS ? rx_framing_errors : 0; }
-  FORCE_INLINE static ring_buffer_pos_t rxMaxEnqueued() { return Cfg::MAX_RX_QUEUED ? rx_max_enqueued : 0; }
-};
-
-// Serial port configuration
-template <uint8_t serial>
-struct MarlinSerialCfg {
-  static constexpr int PORT               = serial;
-  static constexpr unsigned int RX_SIZE   = RX_BUFFER_SIZE;
-  static constexpr unsigned int TX_SIZE   = TX_BUFFER_SIZE;
-  static constexpr bool XONOFF            = ENABLED(SERIAL_XON_XOFF);
-  static constexpr bool EMERGENCYPARSER   = ENABLED(EMERGENCY_PARSER);
-  static constexpr bool DROPPED_RX        = ENABLED(SERIAL_STATS_DROPPED_RX);
-  static constexpr bool RX_OVERRUNS       = ENABLED(SERIAL_STATS_RX_BUFFER_OVERRUNS);
-  static constexpr bool RX_FRAMING_ERRORS = ENABLED(SERIAL_STATS_RX_FRAMING_ERRORS);
-  static constexpr bool MAX_RX_QUEUED     = ENABLED(SERIAL_STATS_MAX_RX_QUEUED);
-};
-
-#if SERIAL_PORT >= 0
-  typedef Serial0Type< MarlinSerial< MarlinSerialCfg<SERIAL_PORT> > > MSerialT;
-  extern MSerialT customizedSerial1;
-#endif
-
-#if defined(SERIAL_PORT_2) && SERIAL_PORT_2 >= 0
-  typedef Serial0Type< MarlinSerial< MarlinSerialCfg<SERIAL_PORT_2> > > MSerialT2;
-  extern MSerialT2 customizedSerial2;
-#endif

Marlin/src/HAL/DUE/MarlinSerialUSB.cpp

@@ -1,140 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
-/**
- * MarlinSerial_Due.cpp - Hardware serial library for Arduino DUE
- * Copyright (c) 2017 Eduardo José Tagle. All right reserved
- * Based on MarlinSerial for AVR, copyright (c) 2006 Nicholas Zambetti.  All right reserved.
- */
-#ifdef ARDUINO_ARCH_SAM
-
-#include "../../inc/MarlinConfig.h"
-
-#if HAS_USB_SERIAL
-
-#include "MarlinSerialUSB.h"
-
-// Imports from Atmel USB Stack/CDC implementation
-extern "C" {
-  bool usb_task_cdc_isenabled();
-  bool usb_task_cdc_dtr_active();
-  bool udi_cdc_is_rx_ready();
-  int udi_cdc_getc();
-  bool udi_cdc_is_tx_ready();
-  int udi_cdc_putc(int value);
-};
-
-// Pending character
-static int pending_char = -1;
-
-// Public Methods
-void MarlinSerialUSB::begin(const long) {}
-
-void MarlinSerialUSB::end() {}
-
-int MarlinSerialUSB::peek() {
-  if (pending_char >= 0)
-    return pending_char;
-
-  // If USB CDC not enumerated or not configured on the PC side
-  if (!usb_task_cdc_isenabled())
-    return -1;
-
-  // If no bytes sent from the PC
-  if (!udi_cdc_is_rx_ready())
-    return -1;
-
-  pending_char = udi_cdc_getc();
-
-  TERN_(EMERGENCY_PARSER, emergency_parser.update(static_cast<MSerialT*>(this)->emergency_state, (char)pending_char));
-
-  return pending_char;
-}
-
-int MarlinSerialUSB::read() {
-  if (pending_char >= 0) {
-    int ret = pending_char;
-    pending_char = -1;
-    return ret;
-  }
-
-  // If USB CDC not enumerated or not configured on the PC side
-  if (!usb_task_cdc_isenabled())
-    return -1;
-
-  // If no bytes sent from the PC
-  if (!udi_cdc_is_rx_ready())
-    return -1;
-
-  int c = udi_cdc_getc();
-
-  TERN_(EMERGENCY_PARSER, emergency_parser.update(static_cast<MSerialT*>(this)->emergency_state, (char)c));
-
-  return c;
-}
-
-bool MarlinSerialUSB::available() {
-    /* If Pending chars */
-  return pending_char >= 0 ||
-    /* or USB CDC enumerated and configured on the PC side and some
-       bytes where sent to us */
-      (usb_task_cdc_isenabled() && udi_cdc_is_rx_ready());
-}
-
-void MarlinSerialUSB::flush() { }
-
-size_t MarlinSerialUSB::write(const uint8_t c) {
-
-  /* Do not even bother sending anything if USB CDC is not enumerated
-     or not configured on the PC side or there is no program on the PC
-     listening to our messages */
-  if (!usb_task_cdc_isenabled() || !usb_task_cdc_dtr_active())
-    return 0;
-
-  /* Wait until the PC has read the pending to be sent data */
-  while (usb_task_cdc_isenabled() &&
-         usb_task_cdc_dtr_active() &&
-        !udi_cdc_is_tx_ready()) {
-  };
-
-  /* Do not even bother sending anything if USB CDC is not enumerated
-     or not configured on the PC side or there is no program on the PC
-     listening to our messages at this point */
-  if (!usb_task_cdc_isenabled() || !usb_task_cdc_dtr_active())
-    return 0;
-
-  // Fifo full
-  //  udi_cdc_signal_overrun();
-  udi_cdc_putc(c);
-  return 1;
-}
-
-// Preinstantiate
-#if SERIAL_PORT == -1
-  MSerialT customizedSerial1(TERN0(EMERGENCY_PARSER, true));
-#endif
-#if SERIAL_PORT_2 == -1
-  MSerialT customizedSerial2(TERN0(EMERGENCY_PARSER, true));
-#endif
-
-#endif // HAS_USB_SERIAL
-#endif // ARDUINO_ARCH_SAM

Marlin/src/HAL/DUE/MarlinSerialUSB.h

@@ -1,63 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-/**
- * MarlinSerialUSB_Due.h - Hardware Serial over USB (CDC) library for Arduino DUE
- * Copyright (c) 2017 Eduardo José Tagle. All right reserved
- */
-
-#include "../../inc/MarlinConfig.h"
-#if HAS_USB_SERIAL
-
-#include <WString.h>
-#include "../../core/serial_hook.h"
-
-
-struct MarlinSerialUSB {
-  void begin(const long);
-  void end();
-  int peek();
-  int read();
-  void flush();
-  bool available();
-  size_t write(const uint8_t c);
-
-  #if ENABLED(SERIAL_STATS_DROPPED_RX)
-    FORCE_INLINE uint32_t dropped() { return 0; }
-  #endif
-
-  #if ENABLED(SERIAL_STATS_MAX_RX_QUEUED)
-    FORCE_INLINE int rxMaxEnqueued() { return 0; }
-  #endif
-};
-typedef Serial0Type<MarlinSerialUSB> MSerialT;
-
-#if SERIAL_PORT == -1
-  extern MSerialT customizedSerial1;
-#endif
-
-#if SERIAL_PORT_2 == -1
-  extern MSerialT customizedSerial2;
-#endif
-
-#endif // HAS_USB_SERIAL

Marlin/src/HAL/DUE/Servo.cpp

@@ -1,159 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
-/*
-  Copyright (c) 2013 Arduino LLC. All right reserved.
-
-  This library is free software; you can redistribute it and/or
-  modify it under the terms of the GNU Lesser General Public
-  License as published by the Free Software Foundation; either
-  version 2.1 of the License, or (at your option) any later version.
-
-  This library is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public
-  License along with this library; if not, write to the Free Software
-  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-*/
-
-#ifdef ARDUINO_ARCH_SAM
-
-#include "../../inc/MarlinConfig.h"
-
-#if HAS_SERVOS
-
-#include "../shared/servo.h"
-#include "../shared/servo_private.h"
-
-static volatile int8_t Channel[_Nbr_16timers];              // counter for the servo being pulsed for each timer (or -1 if refresh interval)
-
-// ------------------------
-/// Interrupt handler for the TC0 channel 1.
-// ------------------------
-void Servo_Handler(timer16_Sequence_t timer, Tc *pTc, uint8_t channel);
-
-#ifdef _useTimer1
-  void HANDLER_FOR_TIMER1() { Servo_Handler(_timer1, TC_FOR_TIMER1, CHANNEL_FOR_TIMER1); }
-#endif
-#ifdef _useTimer2
-  void HANDLER_FOR_TIMER2() { Servo_Handler(_timer2, TC_FOR_TIMER2, CHANNEL_FOR_TIMER2); }
-#endif
-#ifdef _useTimer3
-  void HANDLER_FOR_TIMER3() { Servo_Handler(_timer3, TC_FOR_TIMER3, CHANNEL_FOR_TIMER3); }
-#endif
-#ifdef _useTimer4
-  void HANDLER_FOR_TIMER4() { Servo_Handler(_timer4, TC_FOR_TIMER4, CHANNEL_FOR_TIMER4); }
-#endif
-#ifdef _useTimer5
-  void HANDLER_FOR_TIMER5() { Servo_Handler(_timer5, TC_FOR_TIMER5, CHANNEL_FOR_TIMER5); }
-#endif
-
-void Servo_Handler(timer16_Sequence_t timer, Tc *tc, uint8_t channel) {
-  // clear interrupt
-  tc->TC_CHANNEL[channel].TC_SR;
-  if (Channel[timer] < 0)
-    tc->TC_CHANNEL[channel].TC_CCR |= TC_CCR_SWTRG; // channel set to -1 indicated that refresh interval completed so reset the timer
-  else if (SERVO_INDEX(timer, Channel[timer]) < ServoCount && SERVO(timer, Channel[timer]).Pin.isActive)
-    extDigitalWrite(SERVO(timer, Channel[timer]).Pin.nbr, LOW); // pulse this channel low if activated
-
-  Channel[timer]++;    // increment to the next channel
-  if (SERVO_INDEX(timer, Channel[timer]) < ServoCount && Channel[timer] < SERVOS_PER_TIMER) {
-    tc->TC_CHANNEL[channel].TC_RA = tc->TC_CHANNEL[channel].TC_CV + SERVO(timer,Channel[timer]).ticks;
-    if (SERVO(timer,Channel[timer]).Pin.isActive)    // check if activated
-      extDigitalWrite(SERVO(timer, Channel[timer]).Pin.nbr, HIGH); // its an active channel so pulse it high
-  }
-  else {
-    // finished all channels so wait for the refresh period to expire before starting over
-    tc->TC_CHANNEL[channel].TC_RA =
-      tc->TC_CHANNEL[channel].TC_CV < usToTicks(REFRESH_INTERVAL) - 4
-        ? (unsigned int)usToTicks(REFRESH_INTERVAL) // allow a few ticks to ensure the next OCR1A not missed
-        : tc->TC_CHANNEL[channel].TC_CV + 4;        // at least REFRESH_INTERVAL has elapsed
-    Channel[timer] = -1; // this will get incremented at the end of the refresh period to start again at the first channel
-  }
-}
-
-static void _initISR(Tc *tc, uint32_t channel, uint32_t id, IRQn_Type irqn) {
-  pmc_enable_periph_clk(id);
-  TC_Configure(tc, channel,
-    TC_CMR_TCCLKS_TIMER_CLOCK3 | // MCK/32
-    TC_CMR_WAVE |                // Waveform mode
-    TC_CMR_WAVSEL_UP_RC );       // Counter running up and reset when equals to RC
-
-  /* 84MHz, MCK/32, for 1.5ms: 3937 */
-  TC_SetRA(tc, channel, 2625); // 1ms
-
-  /* Configure and enable interrupt */
-  NVIC_EnableIRQ(irqn);
-  // TC_IER_CPAS: RA Compare
-  tc->TC_CHANNEL[channel].TC_IER = TC_IER_CPAS;
-
-  // Enables the timer clock and performs a software reset to start the counting
-  TC_Start(tc, channel);
-}
-
-void initISR(timer16_Sequence_t timer) {
-  #ifdef _useTimer1
-    if (timer == _timer1)
-      _initISR(TC_FOR_TIMER1, CHANNEL_FOR_TIMER1, ID_TC_FOR_TIMER1, IRQn_FOR_TIMER1);
-  #endif
-  #ifdef _useTimer2
-    if (timer == _timer2)
-      _initISR(TC_FOR_TIMER2, CHANNEL_FOR_TIMER2, ID_TC_FOR_TIMER2, IRQn_FOR_TIMER2);
-  #endif
-  #ifdef _useTimer3
-    if (timer == _timer3)
-      _initISR(TC_FOR_TIMER3, CHANNEL_FOR_TIMER3, ID_TC_FOR_TIMER3, IRQn_FOR_TIMER3);
-  #endif
-  #ifdef _useTimer4
-    if (timer == _timer4)
-      _initISR(TC_FOR_TIMER4, CHANNEL_FOR_TIMER4, ID_TC_FOR_TIMER4, IRQn_FOR_TIMER4);
-  #endif
-  #ifdef _useTimer5
-    if (timer == _timer5)
-      _initISR(TC_FOR_TIMER5, CHANNEL_FOR_TIMER5, ID_TC_FOR_TIMER5, IRQn_FOR_TIMER5);
-  #endif
-}
-
-void finISR(timer16_Sequence_t) {
-  #ifdef _useTimer1
-    TC_Stop(TC_FOR_TIMER1, CHANNEL_FOR_TIMER1);
-  #endif
-  #ifdef _useTimer2
-    TC_Stop(TC_FOR_TIMER2, CHANNEL_FOR_TIMER2);
-  #endif
-  #ifdef _useTimer3
-    TC_Stop(TC_FOR_TIMER3, CHANNEL_FOR_TIMER3);
-  #endif
-  #ifdef _useTimer4
-    TC_Stop(TC_FOR_TIMER4, CHANNEL_FOR_TIMER4);
-  #endif
-  #ifdef _useTimer5
-    TC_Stop(TC_FOR_TIMER5, CHANNEL_FOR_TIMER5);
-  #endif
-}
-
-#endif // HAS_SERVOS
-
-#endif // ARDUINO_ARCH_SAM

Marlin/src/HAL/DUE/Tone.cpp

@@ -1,60 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * SAMD51 HAL developed by Giuliano Zaro (AKA GMagician)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
-/**
- * Description: Tone function for Arduino Due and compatible (SAM3X8E)
- * Derived from https://forum.arduino.cc/index.php?topic=136500.msg2903012#msg2903012
- */
-
-#ifdef ARDUINO_ARCH_SAM
-
-#include "../../inc/MarlinConfig.h"
-#include "HAL.h"
-
-static pin_t tone_pin;
-volatile static int32_t toggles;
-
-void tone(const pin_t _pin, const unsigned int frequency, const unsigned long duration) {
-  tone_pin = _pin;
-  toggles = 2 * frequency * duration / 1000;
-  HAL_timer_start(TONE_TIMER_NUM, 2 * frequency);
-}
-
-void noTone(const pin_t _pin) {
-  HAL_timer_disable_interrupt(TONE_TIMER_NUM);
-  extDigitalWrite(_pin, LOW);
-}
-
-HAL_TONE_TIMER_ISR() {
-  static uint8_t pin_state = 0;
-  HAL_timer_isr_prologue(TONE_TIMER_NUM);
-
-  if (toggles) {
-    toggles--;
-    extDigitalWrite(tone_pin, (pin_state ^= 1));
-  }
-  else noTone(tone_pin);                         // turn off interrupt
-}
-
-#endif // ARDUINO_ARCH_SAM

Marlin/src/HAL/DUE/eeprom_wired.cpp

@@ -1,77 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- *
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- * Copyright (c) 2016 Victor Perez victor_pv@hotmail.com
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#ifdef ARDUINO_ARCH_SAM
-
-#include "../../inc/MarlinConfig.h"
-
-#if USE_WIRED_EEPROM
-
-/**
- * PersistentStore for Arduino-style EEPROM interface
- * with simple implementations supplied by Marlin.
- */
-
-#include "../shared/eeprom_if.h"
-#include "../shared/eeprom_api.h"
-
-#ifndef MARLIN_EEPROM_SIZE
-  #error "MARLIN_EEPROM_SIZE is required for I2C / SPI EEPROM."
-#endif
-size_t PersistentStore::capacity()    { return MARLIN_EEPROM_SIZE; }
-bool PersistentStore::access_start()  { eeprom_init(); return true; }
-bool PersistentStore::access_finish() { return true; }
-
-bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
-  while (size--) {
-    uint8_t * const p = (uint8_t * const)pos;
-    uint8_t v = *value;
-    // EEPROM has only ~100,000 write cycles,
-    // so only write bytes that have changed!
-    if (v != eeprom_read_byte(p)) {
-      eeprom_write_byte(p, v);
-      delay(2);
-      if (eeprom_read_byte(p) != v) {
-        SERIAL_ECHO_MSG(STR_ERR_EEPROM_WRITE);
-        return true;
-      }
-    }
-    crc16(crc, &v, 1);
-    pos++;
-    value++;
-  }
-  return false;
-}
-
-bool PersistentStore::read_data(int &pos, uint8_t *value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
-  do {
-    uint8_t c = eeprom_read_byte((uint8_t*)pos);
-    if (writing) *value = c;
-    crc16(crc, &c, 1);
-    pos++;
-    value++;
-  } while (--size);
-  return false;
-}
-
-#endif // USE_WIRED_EEPROM
-#endif // ARDUINO_ARCH_SAM

Marlin/src/HAL/DUE/endstop_interrupts.h

@@ -1,67 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-/**
- * Endstop Interrupts
- *
- * Without endstop interrupts the endstop pins must be polled continually in
- * the temperature-ISR via endstops.update(), most of the time finding no change.
- * With this feature endstops.update() is called only when we know that at
- * least one endstop has changed state, saving valuable CPU cycles.
- *
- * This feature only works when all used endstop pins can generate an 'external interrupt'.
- *
- * Test whether pins issue interrupts on your board by flashing 'pin_interrupt_test.ino'.
- * (Located in Marlin/buildroot/share/pin_interrupt_test/pin_interrupt_test.ino)
- */
-
-#include "../../module/endstops.h"
-
-// One ISR for all EXT-Interrupts
-void endstop_ISR() { endstops.update(); }
-
-/**
- *  Endstop interrupts for Due based targets.
- *  On Due, all pins support external interrupt capability.
- */
-
-void setup_endstop_interrupts() {
-  #define _ATTACH(P) attachInterrupt(digitalPinToInterrupt(P), endstop_ISR, CHANGE)
-  TERN_(HAS_X_MAX, _ATTACH(X_MAX_PIN));
-  TERN_(HAS_X_MIN, _ATTACH(X_MIN_PIN));
-  TERN_(HAS_Y_MAX, _ATTACH(Y_MAX_PIN));
-  TERN_(HAS_Y_MIN, _ATTACH(Y_MIN_PIN));
-  TERN_(HAS_Z_MAX, _ATTACH(Z_MAX_PIN));
-  TERN_(HAS_Z_MIN, _ATTACH(Z_MIN_PIN));
-  TERN_(HAS_X2_MAX, _ATTACH(X2_MAX_PIN));
-  TERN_(HAS_X2_MIN, _ATTACH(X2_MIN_PIN));
-  TERN_(HAS_Y2_MAX, _ATTACH(Y2_MAX_PIN));
-  TERN_(HAS_Y2_MIN, _ATTACH(Y2_MIN_PIN));
-  TERN_(HAS_Z2_MAX, _ATTACH(Z2_MAX_PIN));
-  TERN_(HAS_Z2_MIN, _ATTACH(Z2_MIN_PIN));
-  TERN_(HAS_Z3_MAX, _ATTACH(Z3_MAX_PIN));
-  TERN_(HAS_Z3_MIN, _ATTACH(Z3_MIN_PIN));
-  TERN_(HAS_Z4_MAX, _ATTACH(Z4_MAX_PIN));
-  TERN_(HAS_Z4_MIN, _ATTACH(Z4_MIN_PIN));
-  TERN_(HAS_Z_MIN_PROBE_PIN, _ATTACH(Z_MIN_PROBE_PIN));
-}

Marlin/src/HAL/DUE/fastio.h

@@ -1,565 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-/**
- * Fast I/O Routines for SAM3X8E
- * Use direct port manipulation to save scads of processor time.
- * Contributed by Triffid_Hunter and modified by Kliment, thinkyhead, Bob-the-Kuhn, et.al.
- */
-
-/**
- * Description: Fast IO functions for Arduino Due and compatible (SAM3X8E)
- *
- * For ARDUINO_ARCH_SAM
- * Note the code here was specifically crafted by disassembling what GCC produces
- * out of it, so GCC is able to optimize it out as much as possible to the least
- * amount of instructions. Be very carefull if you modify them, as "clean code"
- * leads to less efficient compiled code!!
- */
-
-#include <pins_arduino.h>
-
-#include "../../inc/MarlinConfigPre.h"
-
-/**
- * Utility functions
- */
-
-// Due has 12 PWMs assigned to logical pins 2-13.
-// 6, 7, 8 & 9 come from the PWM controller. The others come from the timers.
-#define PWM_PIN(P)              WITHIN(P, 2, 13)
-
-#ifndef MASK
-  #define MASK(PIN) _BV(PIN)
-#endif
-
-/**
- * Magic I/O routines
- *
- * Now you can simply SET_OUTPUT(STEP); WRITE(STEP, HIGH); WRITE(STEP, LOW);
- *
- * Why double up on these macros? see https://gcc.gnu.org/onlinedocs/cpp/Stringification.html
- */
-
-// Read a pin
-#define _READ(IO) bool(DIO ## IO ## _WPORT -> PIO_PDSR & MASK(DIO ## IO ## _PIN))
-
-// Write to a pin
-#define _WRITE(IO,V) do { \
-  volatile Pio* port = (DIO ##  IO ## _WPORT); \
-  const uint32_t mask = MASK(DIO ## IO ## _PIN); \
-  if (V) port->PIO_SODR = mask; \
-  else port->PIO_CODR = mask; \
-}while(0)
-
-// Toggle a pin
-#define _TOGGLE(IO) _WRITE(IO, !READ(IO))
-
-#if MB(PRINTRBOARD_G2)
-
-  #include "fastio/G2_pins.h"
-
-  // Set pin as input
-  #define _SET_INPUT(IO) do{ \
-    pmc_enable_periph_clk(G2_g_APinDescription[IO].ulPeripheralId); \
-    PIO_Configure((DIO ## IO ## _WPORT), PIO_INPUT, MASK(DIO ## IO ## _PIN), 0); \
-  }while(0)
-
-  // Set pin as output
-  #define _SET_OUTPUT(IO) do{ \
-    uint32_t mask = MASK(G2_g_APinDescription[IO].ulPeripheralId); \
-    if ((PMC->PMC_PCSR0 & mask) != (mask)) PMC->PMC_PCER0 = mask; \
-    volatile Pio* port = (DIO ## IO ## _WPORT); \
-    mask = MASK(DIO ## IO ## _PIN); \
-    if (_READ(IO)) port->PIO_SODR = mask; \
-    else port->PIO_CODR = mask; \
-    port->PIO_IDR = mask; \
-    const uint32_t pin_config = G2_g_APinDescription[IO].ulPinConfiguration; \
-    if (pin_config & PIO_PULLUP) port->PIO_PUER = mask; \
-    else port->PIO_PUDR = mask; \
-    if (pin_config & PIO_OPENDRAIN) port->PIO_MDER = mask; \
-    else port->PIO_MDDR = mask; \
-    port->PIO_PER = mask; \
-    port->PIO_OER = mask; \
-    g_pinStatus[IO] = (g_pinStatus[IO] & 0xF0) | PIN_STATUS_DIGITAL_OUTPUT; \
-  }while(0)
-
- /**
-  *  Set pin as output with comments
-  *  #define _SET_OUTPUT(IO) do{ \
-  *    uint32_t mask = MASK(G2_g_APinDescription[IO].ulPeripheralId); \
-  *    if ((PMC->PMC_PCSR0 & mask ) != (mask))  PMC->PMC_PCER0 = mask; \  // enable PIO clock if not already enabled
-  *
-  *    volatile Pio* port = (DIO ##  IO ## _WPORT); \
-  *    const uint32_t mask = MASK(DIO ## IO ## _PIN); \
-  *    if (_READ(IO)) port->PIO_SODR = mask; \ // set output to match input BEFORE setting direction or will glitch the output
-  *    else port->PIO_CODR = mask; \
-  *
-  *    port->PIO_IDR = mask; \ // disable interrupt
-  *
-  *    uint32_t pin_config = G2_g_APinDescription[IO].ulPinConfiguration; \
-  *    if (pin_config & PIO_PULLUP) pPio->PIO_PUER = mask; \  // enable pullup if necessary
-  *    else  pPio->PIO_PUDR = mask; \
-  *
-  *    if (pin_config & PIO_OPENDRAIN) port->PIO_MDER = mask; \ // Enable multi-drive if necessary
-  *    else  port->PIO_MDDR = mask; \
-  *
-  *    port->PIO_PER = mask; \
-  *    port->PIO_OER = mask; \  // set to output
-  *
-  *    g_pinStatus[IO] = (g_pinStatus[IO] & 0xF0) | PIN_STATUS_DIGITAL_OUTPUT; \
-  *  }while(0)
-  */
-
-#else
-
-    // Set pin as input
-  #define _SET_INPUT(IO) do{ \
-    pmc_enable_periph_clk(g_APinDescription[IO].ulPeripheralId); \
-    PIO_Configure(digitalPinToPort(IO), PIO_INPUT, digitalPinToBitMask(IO), 0); \
-  }while(0)
-
-  // Set pin as output
-  #define _SET_OUTPUT(IO) do{ \
-    pmc_enable_periph_clk(g_APinDescription[IO].ulPeripheralId); \
-    PIO_Configure(digitalPinToPort(IO), _READ(IO) ? PIO_OUTPUT_1 : PIO_OUTPUT_0, digitalPinToBitMask(IO), g_APinDescription[IO].ulPinConfiguration); \
-    g_pinStatus[IO] = (g_pinStatus[IO] & 0xF0) | PIN_STATUS_DIGITAL_OUTPUT; \
-  }while(0)
-#endif
-
-// Set pin as input with pullup mode
-#define _PULLUP(IO,V)        pinMode(IO, (V) ? INPUT_PULLUP : INPUT)
-
-// Read a pin (wrapper)
-#define READ(IO)             _READ(IO)
-
-// Write to a pin (wrapper)
-#define WRITE(IO,V)          _WRITE(IO,V)
-
-// Toggle a pin (wrapper)
-#define TOGGLE(IO)           _TOGGLE(IO)
-
-// Set pin as input (wrapper)
-#define SET_INPUT(IO)        _SET_INPUT(IO)
-// Set pin as input with pullup (wrapper)
-#define SET_INPUT_PULLUP(IO) do{ _SET_INPUT(IO); _PULLUP(IO, HIGH); }while(0)
-// Set pin as input with pulldown (substitution)
-#define SET_INPUT_PULLDOWN   SET_INPUT
-
-// Set pin as output (wrapper) -  reads the pin and sets the output to that value
-#define SET_OUTPUT(IO)       _SET_OUTPUT(IO)
-// Set pin as PWM
-#define SET_PWM               SET_OUTPUT
-
-// Check if pin is an input
-#define IS_INPUT(IO)         ((digitalPinToPort(IO)->PIO_OSR & digitalPinToBitMask(IO)) == 0)
-// Check if pin is an output
-#define IS_OUTPUT(IO)        ((digitalPinToPort(IO)->PIO_OSR & digitalPinToBitMask(IO)) != 0)
-
-// Shorthand
-#define OUT_WRITE(IO,V)      do{ SET_OUTPUT(IO); WRITE(IO,V); }while(0)
-
-// digitalRead/Write wrappers
-#define extDigitalRead(IO)    digitalRead(IO)
-#define extDigitalWrite(IO,V) digitalWrite(IO,V)
-
-/**
- * Ports and functions
- * Added as necessary or if I feel like it- not a comprehensive list!
- */
-
-// UART
-#define RXD        DIO0
-#define TXD        DIO1
-
-// TWI (I2C)
-#define SCL        DIO21
-#define SDA        DIO20
-
-/**
- * pins
- */
-
-#define DIO0_PIN 8
-#define DIO0_WPORT PIOA
-
-#define DIO1_PIN 9
-#define DIO1_WPORT PIOA
-
-#define DIO2_PIN 25
-#define DIO2_WPORT PIOB
-
-#define DIO3_PIN 28
-#define DIO3_WPORT PIOC
-
-#define DIO4_PIN 26
-#define DIO4_WPORT PIOC
-
-#define DIO5_PIN 25
-#define DIO5_WPORT PIOC
-
-#define DIO6_PIN 24
-#define DIO6_WPORT PIOC
-
-#define DIO7_PIN 23
-#define DIO7_WPORT PIOC
-
-#define DIO8_PIN 22
-#define DIO8_WPORT PIOC
-
-#define DIO9_PIN 21
-#define DIO9_WPORT PIOC
-
-#define DIO10_PIN 29
-#define DIO10_WPORT PIOC
-
-#define DIO11_PIN 7
-#define DIO11_WPORT PIOD
-
-#define DIO12_PIN 8
-#define DIO12_WPORT PIOD
-
-#define DIO13_PIN 27
-#define DIO13_WPORT PIOB
-
-#define DIO14_PIN 4
-#define DIO14_WPORT PIOD
-
-#define DIO15_PIN 5
-#define DIO15_WPORT PIOD
-
-#define DIO16_PIN 13
-#define DIO16_WPORT PIOA
-
-#define DIO17_PIN 12
-#define DIO17_WPORT PIOA
-
-#define DIO18_PIN 11
-#define DIO18_WPORT PIOA
-
-#define DIO19_PIN 10
-#define DIO19_WPORT PIOA
-
-#define DIO20_PIN 12
-#define DIO20_WPORT PIOB
-
-#define DIO21_PIN 13
-#define DIO21_WPORT PIOB
-
-#define DIO22_PIN 26
-#define DIO22_WPORT PIOB
-
-#define DIO23_PIN 14
-#define DIO23_WPORT PIOA
-
-#define DIO24_PIN 15
-#define DIO24_WPORT PIOA
-
-#define DIO25_PIN 0
-#define DIO25_WPORT PIOD
-
-#define DIO26_PIN 1
-#define DIO26_WPORT PIOD
-
-#define DIO27_PIN 2
-#define DIO27_WPORT PIOD
-
-#define DIO28_PIN 3
-#define DIO28_WPORT PIOD
-
-#define DIO29_PIN 6
-#define DIO29_WPORT PIOD
-
-#define DIO30_PIN 9
-#define DIO30_WPORT PIOD
-
-#define DIO31_PIN 7
-#define DIO31_WPORT PIOA
-
-#define DIO32_PIN 10
-#define DIO32_WPORT PIOD
-
-#define DIO33_PIN 1
-#define DIO33_WPORT PIOC
-
-#if !MB(PRINTRBOARD_G2)    // normal DUE pin mapping
-
-  #define DIO34_PIN 2
-  #define DIO34_WPORT PIOC
-
-  #define DIO35_PIN 3
-  #define DIO35_WPORT PIOC
-
-  #define DIO36_PIN 4
-  #define DIO36_WPORT PIOC
-
-  #define DIO37_PIN 5
-  #define DIO37_WPORT PIOC
-
-  #define DIO38_PIN 6
-  #define DIO38_WPORT PIOC
-
-  #define DIO39_PIN 7
-  #define DIO39_WPORT PIOC
-
-  #define DIO40_PIN 8
-  #define DIO40_WPORT PIOC
-
-  #define DIO41_PIN 9
-  #define DIO41_WPORT PIOC
-
-#endif // !PRINTRBOARD_G2
-
-#define DIO42_PIN 19
-#define DIO42_WPORT PIOA
-
-#define DIO43_PIN 20
-#define DIO43_WPORT PIOA
-
-#define DIO44_PIN 19
-#define DIO44_WPORT PIOC
-
-#define DIO45_PIN 18
-#define DIO45_WPORT PIOC
-
-#define DIO46_PIN 17
-#define DIO46_WPORT PIOC
-
-#define DIO47_PIN 16
-#define DIO47_WPORT PIOC
-
-#define DIO48_PIN 15
-#define DIO48_WPORT PIOC
-
-#define DIO49_PIN 14
-#define DIO49_WPORT PIOC
-
-#define DIO50_PIN 13
-#define DIO50_WPORT PIOC
-
-#define DIO51_PIN 12
-#define DIO51_WPORT PIOC
-
-#define DIO52_PIN 21
-#define DIO52_WPORT PIOB
-
-#define DIO53_PIN 14
-#define DIO53_WPORT PIOB
-
-#define DIO54_PIN 16
-#define DIO54_WPORT PIOA
-
-#define DIO55_PIN 24
-#define DIO55_WPORT PIOA
-
-#define DIO56_PIN 23
-#define DIO56_WPORT PIOA
-
-#define DIO57_PIN 22
-#define DIO57_WPORT PIOA
-
-#define DIO58_PIN 6
-#define DIO58_WPORT PIOA
-
-#define DIO59_PIN 4
-#define DIO59_WPORT PIOA
-
-#define DIO60_PIN 3
-#define DIO60_WPORT PIOA
-
-#define DIO61_PIN 2
-#define DIO61_WPORT PIOA
-
-#define DIO62_PIN 17
-#define DIO62_WPORT PIOB
-
-#define DIO63_PIN 18
-#define DIO63_WPORT PIOB
-
-#define DIO64_PIN 19
-#define DIO64_WPORT PIOB
-
-#define DIO65_PIN 20
-#define DIO65_WPORT PIOB
-
-#define DIO66_PIN 15
-#define DIO66_WPORT PIOB
-
-#define DIO67_PIN 16
-#define DIO67_WPORT PIOB
-
-#define DIO68_PIN 1
-#define DIO68_WPORT PIOA
-
-#define DIO69_PIN 0
-#define DIO69_WPORT PIOA
-
-#define DIO70_PIN 17
-#define DIO70_WPORT PIOA
-
-#define DIO71_PIN 18
-#define DIO71_WPORT PIOA
-
-#define DIO72_PIN 30
-#define DIO72_WPORT PIOC
-
-#define DIO73_PIN 21
-#define DIO73_WPORT PIOA
-
-#define DIO74_PIN 25
-#define DIO74_WPORT PIOA
-
-#define DIO75_PIN 26
-#define DIO75_WPORT PIOA
-
-#define DIO76_PIN 27
-#define DIO76_WPORT PIOA
-
-#define DIO77_PIN 28
-#define DIO77_WPORT PIOA
-
-#define DIO78_PIN 23
-#define DIO78_WPORT PIOB
-
-#define DIO79_PIN 17
-#define DIO79_WPORT PIOA
-
-#define DIO80_PIN 12
-#define DIO80_WPORT PIOB
-
-#define DIO81_PIN 8
-#define DIO81_WPORT PIOA
-
-#define DIO82_PIN 11
-#define DIO82_WPORT PIOA
-
-#define DIO83_PIN 13
-#define DIO83_WPORT PIOA
-
-#define DIO84_PIN 4
-#define DIO84_WPORT PIOD
-
-#define DIO85_PIN 11
-#define DIO85_WPORT PIOB
-
-#define DIO86_PIN 21
-#define DIO86_WPORT PIOB
-
-#define DIO87_PIN 29
-#define DIO87_WPORT PIOA
-
-#define DIO88_PIN 15
-#define DIO88_WPORT PIOB
-
-#define DIO89_PIN 14
-#define DIO89_WPORT PIOB
-
-#define DIO90_PIN 1
-#define DIO90_WPORT PIOA
-
-#define DIO91_PIN 15
-#define DIO91_WPORT PIOB
-
-#ifdef ARDUINO_SAM_ARCHIM
-
-  #define DIO92_PIN 11
-  #define DIO92_WPORT PIOC
-
-  #define DIO93_PIN 2
-  #define DIO93_WPORT PIOB
-
-  #define DIO94_PIN 1
-  #define DIO94_WPORT PIOB
-
-  #define DIO95_PIN 0
-  #define DIO95_WPORT PIOB
-
-  #define DIO96_PIN 10
-  #define DIO96_WPORT PIOC
-
-  #define DIO97_PIN 24
-  #define DIO97_WPORT PIOB
-
-  #define DIO98_PIN 7
-  #define DIO98_WPORT PIOB
-
-  #define DIO99_PIN 6
-  #define DIO99_WPORT PIOB
-
-  #define DIO100_PIN 8
-  #define DIO100_WPORT PIOB
-
-  #define DIO101_PIN 5
-  #define DIO101_WPORT PIOB
-
-  #define DIO102_PIN 4
-  #define DIO102_WPORT PIOB
-
-  #define DIO103_PIN 3
-  #define DIO103_WPORT PIOB
-
-  #define DIO104_PIN 20
-  #define DIO104_WPORT PIOC
-
-  #define DIO105_PIN 22
-  #define DIO105_WPORT PIOB
-
-  #define DIO106_PIN 27
-  #define DIO106_WPORT PIOC
-
-  #define DIO107_PIN 10
-  #define DIO107_WPORT PIOB
-
-  #define DIO108_PIN 9
-  #define DIO108_WPORT PIOB
-
-#else // !ARDUINO_SAM_ARCHIM
-
-  #define DIO92_PIN 5
-  #define DIO92_WPORT PIOA
-
-  #define DIO93_PIN 12
-  #define DIO93_WPORT PIOB
-
-  #define DIO94_PIN 22
-  #define DIO94_WPORT PIOB
-
-  #define DIO95_PIN 23
-  #define DIO95_WPORT PIOB
-
-  #define DIO96_PIN 24
-  #define DIO96_WPORT PIOB
-
-  #define DIO97_PIN 20
-  #define DIO97_WPORT PIOC
-
-  #define DIO98_PIN 27
-  #define DIO98_WPORT PIOC
-
-  #define DIO99_PIN 10
-  #define DIO99_WPORT PIOC
-
-  #define DIO100_PIN 11
-  #define DIO100_WPORT PIOC
-
-#endif // !ARDUINO_SAM_ARCHIM

Marlin/src/HAL/DUE/fastio/G2_PWM.cpp

@@ -1,206 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
-/**
- * The PWM module is only used to generate interrupts at specified times. It
- * is NOT used to directly toggle pins. The ISR writes to the pin assigned to
- * that interrupt.
- *
- * All PWMs use the same repetition rate.  The G2 needs about 10KHz min in order to
- * not have obvious ripple on the Vref signals.
- *
- * The data structures are setup to minimize the computation done by the ISR which
- * minimizes ISR execution time.  Execution times are 0.8 to 1.1 microseconds.
- *
- * FIve PWM interrupt sources are used.  Channel 0 sets the base period.  All Vref
- * signals are set active when this counter overflows and resets to zero.  The compare
- * values in channels 1-4 are set to give the desired duty cycle for that Vref pin.
- * When counter 0 matches the compare value then that channel generates an interrupt.
- * The ISR checks the source of the interrupt and sets the corresponding pin inactive.
- *
- * Some jitter in the Vref signal is OK so the interrupt priority is left at its default value.
- */
-
-#include "../../../inc/MarlinConfig.h"
-
-#if MB(PRINTRBOARD_G2)
-
-#include "G2_PWM.h"
-
-#if PIN_EXISTS(MOTOR_CURRENT_PWM_X)
-  #define G2_PWM_X 1
-#else
-  #define G2_PWM_X 0
-#endif
-#if PIN_EXISTS(MOTOR_CURRENT_PWM_Y)
-  #define G2_PWM_Y 1
-#else
-  #define G2_PWM_Y 0
-#endif
-#if PIN_EXISTS(MOTOR_CURRENT_PWM_Z)
-  #define G2_PWM_Z 1
-#else
-  #define G2_PWM_Z 0
-#endif
-#if PIN_EXISTS(MOTOR_CURRENT_PWM_E)
-  #define G2_PWM_E 1
-#else
-  #define G2_PWM_E 0
-#endif
-#define G2_MASK_X(V) (G2_PWM_X * (V))
-#define G2_MASK_Y(V) (G2_PWM_Y * (V))
-#define G2_MASK_Z(V) (G2_PWM_Z * (V))
-#define G2_MASK_E(V) (G2_PWM_E * (V))
-
-volatile uint32_t *SODR_A = &PIOA->PIO_SODR,
-                  *SODR_B = &PIOB->PIO_SODR,
-                  *CODR_A = &PIOA->PIO_CODR,
-                  *CODR_B = &PIOB->PIO_CODR;
-
-PWM_map ISR_table[NUM_PWMS] = PWM_MAP_INIT;
-
-void Stepper::digipot_init() {
-
-  #if PIN_EXISTS(MOTOR_CURRENT_PWM_X)
-    OUT_WRITE(MOTOR_CURRENT_PWM_X_PIN, 0);  // init pins
-  #endif
-  #if PIN_EXISTS(MOTOR_CURRENT_PWM_Y)
-    OUT_WRITE(MOTOR_CURRENT_PWM_Y_PIN, 0);
-  #endif
-  #if G2_PWM_Z
-    OUT_WRITE(MOTOR_CURRENT_PWM_Z_PIN, 0);
-  #endif
-  #if G2_PWM_E
-    OUT_WRITE(MOTOR_CURRENT_PWM_E_PIN, 0);
-  #endif
-
-  #define WPKEY          (0x50574D << 8) // “PWM” in ASCII
-  #define WPCMD_DIS_SW   0  // command to disable Write Protect SW
-  #define WPRG_ALL       (PWM_WPCR_WPRG0 | PWM_WPCR_WPRG1 | PWM_WPCR_WPRG2 | PWM_WPCR_WPRG3 | PWM_WPCR_WPRG4 | PWM_WPCR_WPRG5)  // all Write Protect Groups
-
-  #define PWM_CLOCK_F    F_CPU / 1000000UL   // set clock to 1MHz
-
-  PMC->PMC_PCER1 = PMC_PCER1_PID36;                       // enable PWM controller clock (disabled on power up)
-
-  PWM->PWM_WPCR = WPKEY | WPRG_ALL | WPCMD_DIS_SW;        // enable setting of all PWM registers
-  PWM->PWM_CLK = PWM_CLOCK_F;                             // enable CLK_A and set it to 1MHz, leave CLK_B disabled
-  PWM->PWM_CH_NUM[0].PWM_CMR = 0b1011;                    // set channel 0 to Clock A input & to left aligned
-  if (G2_PWM_X) PWM->PWM_CH_NUM[1].PWM_CMR = 0b1011;      // set channel 1 to Clock A input & to left aligned
-  if (G2_PWM_Y) PWM->PWM_CH_NUM[2].PWM_CMR = 0b1011;      // set channel 2 to Clock A input & to left aligned
-  if (G2_PWM_Z) PWM->PWM_CH_NUM[3].PWM_CMR = 0b1011;      // set channel 3 to Clock A input & to left aligned
-  if (G2_PWM_E) PWM->PWM_CH_NUM[4].PWM_CMR = 0b1011;      // set channel 4 to Clock A input & to left aligned
-
-  PWM->PWM_CH_NUM[0].PWM_CPRD = PWM_PERIOD_US;            // set channel 0 Period
-
-  PWM->PWM_IER2 = PWM_IER1_CHID0;                         // generate interrupt when counter0 overflows
-  PWM->PWM_IER2 = PWM_IER2_CMPM0
-    | G2_MASK_X(PWM_IER2_CMPM1)
-    | G2_MASK_Y(PWM_IER2_CMPM2)
-    | G2_MASK_Z(PWM_IER2_CMPM3)
-    | G2_MASK_E(PWM_IER2_CMPM4)
-  ; // generate interrupt on compare event
-
-  if (G2_PWM_X) PWM->PWM_CMP[1].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[0])); // interrupt when counter0 == CMPV - used to set Motor 1 PWM inactive
-  if (G2_PWM_Y) PWM->PWM_CMP[2].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[0])); // interrupt when counter0 == CMPV - used to set Motor 2 PWM inactive
-  if (G2_PWM_Z) PWM->PWM_CMP[3].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[1])); // interrupt when counter0 == CMPV - used to set Motor 3 PWM inactive
-  if (G2_PWM_E) PWM->PWM_CMP[4].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[2])); // interrupt when counter0 == CMPV - used to set Motor 4 PWM inactive
-
-  if (G2_PWM_X) PWM->PWM_CMP[1].PWM_CMPM = 0x0001;  // enable compare event
-  if (G2_PWM_Y) PWM->PWM_CMP[2].PWM_CMPM = 0x0001;  // enable compare event
-  if (G2_PWM_Z) PWM->PWM_CMP[3].PWM_CMPM = 0x0001;  // enable compare event
-  if (G2_PWM_E) PWM->PWM_CMP[4].PWM_CMPM = 0x0001;  // enable compare event
-
-  PWM->PWM_SCM = PWM_SCM_UPDM_MODE0 | PWM_SCM_SYNC0
-    | G2_MASK_X(PWM_SCM_SYNC1)
-    | G2_MASK_Y(PWM_SCM_SYNC2)
-    | G2_MASK_Z(PWM_SCM_SYNC3)
-    | G2_MASK_E(PWM_SCM_SYNC4)
-  ; // sync 1-4 with 0, use mode 0 for updates
-
-  PWM->PWM_ENA = PWM_ENA_CHID0
-    | G2_MASK_X(PWM_ENA_CHID1)
-    | G2_MASK_Y(PWM_ENA_CHID2)
-    | G2_MASK_Z(PWM_ENA_CHID3)
-    | G2_MASK_E(PWM_ENA_CHID4)
-  ; // enable channels used by G2
-
-  PWM->PWM_IER1 = PWM_IER1_CHID0
-    | G2_MASK_X(PWM_IER1_CHID1)
-    | G2_MASK_Y(PWM_IER1_CHID2)
-    | G2_MASK_Z(PWM_IER1_CHID3)
-    | G2_MASK_E(PWM_IER1_CHID4)
-  ; // enable interrupts for channels used by G2
-
-  NVIC_EnableIRQ(PWM_IRQn);     // Enable interrupt handler
-  NVIC_SetPriority(PWM_IRQn, NVIC_EncodePriority(0, 10, 0));  // normal priority for PWM module (can stand some jitter on the Vref signals)
-}
-
-void Stepper::set_digipot_current(const uint8_t driver, const int16_t current) {
-
-  if (!(PWM->PWM_CH_NUM[0].PWM_CPRD == PWM_PERIOD_US)) digipot_init();  // Init PWM system if needed
-
-  switch (driver) {
-    case 0:
-      if (G2_PWM_X) PWM->PWM_CMP[1].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));    // update X & Y
-      if (G2_PWM_Y) PWM->PWM_CMP[2].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));
-      if (G2_PWM_X) PWM->PWM_CMP[1].PWM_CMPMUPD = 0x0001;  // enable compare event
-      if (G2_PWM_Y) PWM->PWM_CMP[2].PWM_CMPMUPD = 0x0001;  // enable compare event
-      if (G2_PWM_X || G2_PWM_Y) PWM->PWM_SCUC = PWM_SCUC_UPDULOCK; // tell the PWM controller to update the values on the next cycle
-      break;
-    case 1:
-      if (G2_PWM_Z) {
-        PWM->PWM_CMP[3].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));    // update Z
-        PWM->PWM_CMP[3].PWM_CMPMUPD = 0x0001;  // enable compare event
-        PWM->PWM_SCUC = PWM_SCUC_UPDULOCK; // tell the PWM controller to update the values on the next cycle
-      }
-      break;
-    default:
-      if (G2_PWM_E) {
-        PWM->PWM_CMP[4].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));    // update E
-        PWM->PWM_CMP[4].PWM_CMPMUPD = 0x0001;  // enable compare event
-        PWM->PWM_SCUC = PWM_SCUC_UPDULOCK; // tell the PWM controller to update the values on the next cycle
-      }
-      break;
-  }
-}
-
-volatile uint32_t PWM_ISR1_STATUS, PWM_ISR2_STATUS;
-
-void PWM_Handler() {
-  PWM_ISR1_STATUS = PWM->PWM_ISR1;
-  PWM_ISR2_STATUS = PWM->PWM_ISR2;
-  if (PWM_ISR1_STATUS & PWM_IER1_CHID0) {                                                         // CHAN_0 interrupt
-    if (G2_PWM_X) *ISR_table[0].set_register = ISR_table[0].write_mask;                           // set X to active
-    if (G2_PWM_Y) *ISR_table[1].set_register = ISR_table[1].write_mask;                           // set Y to active
-    if (G2_PWM_Z) *ISR_table[2].set_register = ISR_table[2].write_mask;                           // set Z to active
-    if (G2_PWM_E) *ISR_table[3].set_register = ISR_table[3].write_mask;                           // set E to active
-  }
-  else {
-    if (G2_PWM_X && (PWM_ISR2_STATUS & PWM_IER2_CMPM1)) *ISR_table[0].clr_register = ISR_table[0].write_mask; // set X to inactive
-    if (G2_PWM_Y && (PWM_ISR2_STATUS & PWM_IER2_CMPM2)) *ISR_table[1].clr_register = ISR_table[1].write_mask; // set Y to inactive
-    if (G2_PWM_Z && (PWM_ISR2_STATUS & PWM_IER2_CMPM3)) *ISR_table[2].clr_register = ISR_table[2].write_mask; // set Z to inactive
-    if (G2_PWM_E && (PWM_ISR2_STATUS & PWM_IER2_CMPM4)) *ISR_table[3].clr_register = ISR_table[3].write_mask; // set E to inactive
-  }
-  return;
-}
-
-#endif // PRINTRBOARD_G2

Marlin/src/HAL/DUE/inc/Conditionals_LCD.h

@@ -1,26 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-#if HAS_SPI_TFT || HAS_FSMC_TFT
-  #error "Sorry! TFT displays are not available for HAL/DUE."
-#endif

Marlin/src/HAL/DUE/inc/Conditionals_adv.h

@@ -1,22 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once

Marlin/src/HAL/DUE/inc/Conditionals_post.h

@@ -1,28 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-#if USE_FALLBACK_EEPROM
-  #define FLASH_EEPROM_EMULATION
-#elif EITHER(I2C_EEPROM, SPI_EEPROM)
-  #define USE_SHARED_EEPROM 1
-#endif

Marlin/src/HAL/DUE/inc/SanityCheck.h

@@ -1,61 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-/**
- * Test Arduino Due specific configuration values for errors at compile-time.
- */
-
-/**
- * HARDWARE VS. SOFTWARE SPI COMPATIBILITY
- *
- * DUE selects hardware vs. software SPI depending on whether one of the hardware-controllable SDSS pins is in use.
- *
- * The hardware SPI controller doesn't allow software SPIs to control any shared pins.
- *
- * When DUE software SPI is used then Trinamic drivers must use the TMC softSPI.
- *
- * When DUE hardware SPI is used then a Trinamic driver can use either its hardware SPI or, if there are no shared
- * pins, its software SPI.
- *
- * Usually the hardware SPI pins are only available to the LCD. This makes the DUE hard SPI used at the same time
- * as the TMC2130 soft SPI the most common setup.
- */
-#define _IS_HW_SPI(P) (defined(TMC_SW_##P) && (TMC_SW_##P == SD_MOSI_PIN || TMC_SW_##P == SD_MISO_PIN || TMC_SW_##P == SD_SCK_PIN))
-
-#if ENABLED(SDSUPPORT) && HAS_DRIVER(TMC2130)
-  #if ENABLED(TMC_USE_SW_SPI)
-    #if DISABLED(DUE_SOFTWARE_SPI) && (_IS_HW_SPI(MOSI) || _IS_HW_SPI(MISO) || _IS_HW_SPI(SCK))
-      #error "DUE hardware SPI is required but is incompatible with TMC2130 software SPI. Either disable TMC_USE_SW_SPI or use separate pins for the two SPIs."
-    #endif
-  #elif ENABLED(DUE_SOFTWARE_SPI)
-    #error "DUE software SPI is required but is incompatible with TMC2130 hardware SPI. Enable TMC_USE_SW_SPI to fix."
-  #endif
-#endif
-
-#if ENABLED(FAST_PWM_FAN) || SPINDLE_LASER_FREQUENCY
-  #error "Features requiring Hardware PWM (FAST_PWM_FAN, SPINDLE_LASER_FREQUENCY) are not yet supported on DUE."
-#endif
-
-#if HAS_TMC_SW_SERIAL
-  #error "TMC220x Software Serial is not supported on this platform."
-#endif

Marlin/src/HAL/DUE/pinsDebug.h

@@ -1,182 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
-/**
- * Support routines for Due
- */
-
-/**
- * Translation of routines & variables used by pinsDebug.h
- */
-
-#include "../shared/Marduino.h"
-
-/**
- * Due/Marlin quirks
- *
- * a) determining the state of a pin
- *     The Due/Arduino status definitions for the g_pinStatus[pin] array are:
- *       #define PIN_STATUS_DIGITAL_INPUT_PULLUP  (0x01)
- *       #define PIN_STATUS_DIGITAL_INPUT         (0x02)
- *       #define PIN_STATUS_DIGITAL_OUTPUT        (0x03)
- *       #define PIN_STATUS_ANALOG                (0x04)
- *       #define PIN_STATUS_PWM                   (0x05)
- *       #define PIN_STATUS_TIMER                 (0x06)
- *
- *     These are only valid if the following Due/Arduino provided functions are used:
- *       analogRead
- *       analogWrite
- *       digitalWrite
- *       pinMode
- *
- *     The FASTIO routines do not touch the g_pinStatus[pin] array.
- *
- *     The net result is that both the g_pinStatus[pin] array and the PIO_OSR register
- *     needs to be looked at when determining if a pin is an input or an output.
- *
- * b) Due has only pins 6, 7, 8 & 9 enabled for PWMs.  FYI - they run at 1KHz
- *
- * c) NUM_DIGITAL_PINS does not include the analog pins
- *
- * d) Pins 0-78 are defined for Due but 78 has a comment of "unconnected!".  78 is
- *    included just in case.
- */
-
-#define NUMBER_PINS_TOTAL PINS_COUNT
-
-#define digitalRead_mod(p) extDigitalRead(p)  // AVR digitalRead disabled PWM before it read the pin
-#define PRINT_PORT(p)
-#define PRINT_ARRAY_NAME(x) do{ sprintf_P(buffer, PSTR("%-" STRINGIFY(MAX_NAME_LENGTH) "s"), pin_array[x].name); SERIAL_ECHO(buffer); }while(0)
-#define PRINT_PIN(p) do{ sprintf_P(buffer, PSTR("%02d"), p); SERIAL_ECHO(buffer); }while(0)
-#define GET_ARRAY_PIN(p) pin_array[p].pin
-#define GET_ARRAY_IS_DIGITAL(p) pin_array[p].is_digital
-#define VALID_PIN(pin) (pin >= 0 && pin < (int8_t)NUMBER_PINS_TOTAL ? 1 : 0)
-#define DIGITAL_PIN_TO_ANALOG_PIN(p) int(p - analogInputToDigitalPin(0))
-#define IS_ANALOG(P) WITHIN(P, char(analogInputToDigitalPin(0)), char(analogInputToDigitalPin(NUM_ANALOG_INPUTS - 1)))
-#define pwm_status(pin) (((g_pinStatus[pin] & 0xF) == PIN_STATUS_PWM) && \
-                        ((g_APinDescription[pin].ulPinAttribute & PIN_ATTR_PWM) == PIN_ATTR_PWM))
-#define MULTI_NAME_PAD 14 // space needed to be pretty if not first name assigned to a pin
-
-bool GET_PINMODE(int8_t pin) {  // 1: output, 0: input
-  volatile Pio* port = g_APinDescription[pin].pPort;
-  uint32_t mask = g_APinDescription[pin].ulPin;
-  uint8_t pin_status = g_pinStatus[pin] & 0xF;
-  return (  (pin_status == 0 && (port->PIO_OSR & mask))
-          || pin_status == PIN_STATUS_DIGITAL_OUTPUT
-          || pwm_status(pin));
-}
-
-
-void pwm_details(int32_t pin) {
-  if (pwm_status(pin)) {
-    uint32_t chan = g_APinDescription[pin].ulPWMChannel;
-    SERIAL_ECHOPAIR("PWM = ", PWM_INTERFACE->PWM_CH_NUM[chan].PWM_CDTY);
-  }
-}
-
-/**
- * DUE Board pin   |  PORT  | Label
- * ----------------+--------+-------
- *   0             |  PA8   | "RX0"
- *   1             |  PA9   | "TX0"
- *   2       TIOA0 |  PB25  |
- *   3       TIOA7 |  PC28  |
- *   4       NPCS1 |  PA29  |
- *           TIOB6 |  PC26  |
- *   5       TIOA6 |  PC25  |
- *   6       PWML7 |  PC24  |
- *   7       PWML6 |  PC23  |
- *   8       PWML5 |  PC22  |
- *   9       PWML4 |  PC21  |
- *  10       NPCS0 |  PA28  |
- *           TIOB7 |  PC29  |
- *  11       TIOA8 |  PD7   |
- *  12       TIOB8 |  PD8   |
- *  13       TIOB0 |  PB27  | LED AMBER "L"
- *  14       TXD3  |  PD4   | "TX3"
- *  15       RXD3  |  PD5   | "RX3"
- *  16       TXD1  |  PA13  | "TX2"
- *  17       RXD1  |  PA12  | "RX2"
- *  18       TXD0  |  PA11  | "TX1"
- *  19       RXD0  |  PA10  | "RX1"
- *  20             |  PB12  | "SDA"
- *  21             |  PB13  | "SCL"
- *  22             |  PB26  |
- *  23             |  PA14  |
- *  24             |  PA15  |
- *  25             |  PD0   |
- *  26             |  PD1   |
- *  27             |  PD2   |
- *  28             |  PD3   |
- *  29             |  PD6   |
- *  30             |  PD9   |
- *  31             |  PA7   |
- *  32             |  PD10  |
- *  33             |  PC1   |
- *  34             |  PC2   |
- *  35             |  PC3   |
- *  36             |  PC4   |
- *  37             |  PC5   |
- *  38             |  PC6   |
- *  39             |  PC7   |
- *  40             |  PC8   |
- *  41             |  PC9   |
- *  42             |  PA19  |
- *  43             |  PA20  |
- *  44             |  PC19  |
- *  45             |  PC18  |
- *  46             |  PC17  |
- *  47             |  PC16  |
- *  48             |  PC15  |
- *  49             |  PC14  |
- *  50             |  PC13  |
- *  51             |  PC12  |
- *  52       NPCS2 |  PB21  |
- *  53             |  PB14  |
- *  54             |  PA16  | "A0"
- *  55             |  PA24  | "A1"
- *  56             |  PA23  | "A2"
- *  57             |  PA22  | "A3"
- *  58       TIOB2 |  PA6   | "A4"
- *  69             |  PA4   | "A5"
- *  60       TIOB1 |  PA3   | "A6"
- *  61       TIOA1 |  PA2   | "A7"
- *  62             |  PB17  | "A8"
- *  63             |  PB18  | "A9"
- *  64             |  PB19  | "A10"
- *  65             |  PB20  | "A11"
- *  66             |  PB15  | "DAC0"
- *  67             |  PB16  | "DAC1"
- *  68             |  PA1   | "CANRX"
- *  69             |  PA0   | "CANTX"
- *  70             |  PA17  | "SDA1"
- *  71             |  PA18  | "SCL1"
- *  72             |  PC30  | LED AMBER "RX"
- *  73             |  PA21  | LED AMBER "TX"
- *  74       MISO  |  PA25  |
- *  75       MOSI  |  PA26  |
- *  76       SCLK  |  PA27  |
- *  77       NPCS0 |  PA28  |
- *  78       NPCS3 |  PB23  | unconnected!
- *
- * USB pin         |  PORT
- * ----------------+--------
- *  ID             |  PB11
- *  VBOF           |  PB10
- */

Marlin/src/HAL/DUE/spi_pins.h

@@ -1,64 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-/**
- * Define SPI Pins: SCK, MISO, MOSI, SS
- *
- * Available chip select pins for HW SPI are 4 10 52 77
- */
-#if SDSS == 4 || SDSS == 10 || SDSS == 52 || SDSS == 77 || SDSS == 87
-  #if SDSS == 4
-    #define SPI_PIN         87
-    #define SPI_CHAN         1
-  #elif SDSS == 10
-    #define SPI_PIN         77
-    #define SPI_CHAN         0
-  #elif SDSS == 52
-    #define SPI_PIN         86
-    #define SPI_CHAN         2
-  #elif SDSS == 77
-    #define SPI_PIN         77
-    #define SPI_CHAN         0
-  #else
-    #define SPI_PIN         87
-    #define SPI_CHAN         1
-  #endif
-  #define SD_SCK_PIN        76
-  #define SD_MISO_PIN       74
-  #define SD_MOSI_PIN       75
-#else
-  // defaults
-  #define DUE_SOFTWARE_SPI
-  #ifndef SD_SCK_PIN
-    #define SD_SCK_PIN      52
-  #endif
-  #ifndef SD_MISO_PIN
-    #define SD_MISO_PIN     50
-  #endif
-  #ifndef SD_MOSI_PIN
-    #define SD_MOSI_PIN     51
-  #endif
-#endif
-
-/* A.28, A.29, B.21, C.26, C.29 */
-#define SD_SS_PIN         SDSS

Marlin/src/HAL/DUE/timers.cpp

@@ -1,132 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- *
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
-/**
- * HAL Timers for Arduino Due and compatible (SAM3X8E)
- */
-
-#ifdef ARDUINO_ARCH_SAM
-
-// ------------------------
-// Includes
-// ------------------------
-#include "../../inc/MarlinConfig.h"
-#include "HAL.h"
-
-// ------------------------
-// Local defines
-// ------------------------
-
-#define NUM_HARDWARE_TIMERS 9
-
-// ------------------------
-// Private Variables
-// ------------------------
-
-const tTimerConfig TimerConfig [NUM_HARDWARE_TIMERS] = {
-  { TC0, 0, TC0_IRQn,  3}, // 0 - [servo timer5]
-  { TC0, 1, TC1_IRQn,  0}, // 1
-  { TC0, 2, TC2_IRQn,  2}, // 2 - stepper
-  { TC1, 0, TC3_IRQn,  0}, // 3 - stepper for BOARD_ARCHIM1
-  { TC1, 1, TC4_IRQn, 15}, // 4 - temperature
-  { TC1, 2, TC5_IRQn,  3}, // 5 - [servo timer3]
-  { TC2, 0, TC6_IRQn, 14}, // 6 - tone
-  { TC2, 1, TC7_IRQn,  0}, // 7
-  { TC2, 2, TC8_IRQn,  0}, // 8
-};
-
-// ------------------------
-// Public functions
-// ------------------------
-
-/*
-  Timer_clock1: Prescaler 2 -> 42MHz
-  Timer_clock2: Prescaler 8 -> 10.5MHz
-  Timer_clock3: Prescaler 32 -> 2.625MHz
-  Timer_clock4: Prescaler 128 -> 656.25kHz
-*/
-
-void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency) {
-  Tc *tc = TimerConfig[timer_num].pTimerRegs;
-  IRQn_Type irq = TimerConfig[timer_num].IRQ_Id;
-  uint32_t channel = TimerConfig[timer_num].channel;
-
-  // Disable interrupt, just in case it was already enabled
-  NVIC_DisableIRQ(irq);
-
-  // We NEED memory barriers to ensure Interrupts are actually disabled!
-  // ( https://dzone.com/articles/nvic-disabling-interrupts-on-arm-cortex-m-and-the )
-  __DSB();
-  __ISB();
-
-  // Disable timer interrupt
-  tc->TC_CHANNEL[channel].TC_IDR = TC_IDR_CPCS;
-
-  // Stop timer, just in case, to be able to reconfigure it
-  TC_Stop(tc, channel);
-
-  pmc_set_writeprotect(false);
-  pmc_enable_periph_clk((uint32_t)irq);
-  NVIC_SetPriority(irq, TimerConfig [timer_num].priority);
-
-  // wave mode, reset counter on match with RC,
-  TC_Configure(tc, channel, TC_CMR_WAVE | TC_CMR_WAVSEL_UP_RC | TC_CMR_TCCLKS_TIMER_CLOCK1);
-
-  // Set compare value
-  TC_SetRC(tc, channel, VARIANT_MCK / 2 / frequency);
-
-  // And start timer
-  TC_Start(tc, channel);
-
-  // enable interrupt on RC compare
-  tc->TC_CHANNEL[channel].TC_IER = TC_IER_CPCS;
-
-  // Finally, enable IRQ
-  NVIC_EnableIRQ(irq);
-}
-
-void HAL_timer_enable_interrupt(const uint8_t timer_num) {
-  IRQn_Type irq = TimerConfig[timer_num].IRQ_Id;
-  NVIC_EnableIRQ(irq);
-}
-
-void HAL_timer_disable_interrupt(const uint8_t timer_num) {
-  IRQn_Type irq = TimerConfig[timer_num].IRQ_Id;
-  NVIC_DisableIRQ(irq);
-
-  // We NEED memory barriers to ensure Interrupts are actually disabled!
-  // ( https://dzone.com/articles/nvic-disabling-interrupts-on-arm-cortex-m-and-the )
-  __DSB();
-  __ISB();
-}
-
-// missing from CMSIS: Check if interrupt is enabled or not
-static bool NVIC_GetEnabledIRQ(IRQn_Type IRQn) {
-  return TEST(NVIC->ISER[uint32_t(IRQn) >> 5], uint32_t(IRQn) & 0x1F);
-}
-
-bool HAL_timer_interrupt_enabled(const uint8_t timer_num) {
-  IRQn_Type irq = TimerConfig[timer_num].IRQ_Id;
-  return NVIC_GetEnabledIRQ(irq);
-}
-
-#endif // ARDUINO_ARCH_SAM

Marlin/src/HAL/DUE/timers.h

@@ -1,128 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- *
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-/**
- * HAL Timers for Arduino Due and compatible (SAM3X8E)
- */
-
-#include <stdint.h>
-
-// ------------------------
-// Defines
-// ------------------------
-
-#define FORCE_INLINE __attribute__((always_inline)) inline
-
-typedef uint32_t hal_timer_t;
-#define HAL_TIMER_TYPE_MAX 0xFFFFFFFF
-
-#define HAL_TIMER_RATE         ((F_CPU) / 2)    // frequency of timers peripherals
-
-#ifndef STEP_TIMER_NUM
-  #define STEP_TIMER_NUM        2  // Timer Index for Stepper
-#endif
-#ifndef PULSE_TIMER_NUM
-  #define PULSE_TIMER_NUM       STEP_TIMER_NUM
-#endif
-#ifndef TEMP_TIMER_NUM
-  #define TEMP_TIMER_NUM        4  // Timer Index for Temperature
-#endif
-#ifndef TONE_TIMER_NUM
-  #define TONE_TIMER_NUM        6  // index of timer to use for beeper tones
-#endif
-
-#define TEMP_TIMER_FREQUENCY   1000 // temperature interrupt frequency
-
-#define STEPPER_TIMER_RATE     HAL_TIMER_RATE   // frequency of stepper timer (HAL_TIMER_RATE / STEPPER_TIMER_PRESCALE)
-#define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000) // stepper timer ticks per µs
-#define STEPPER_TIMER_PRESCALE (CYCLES_PER_MICROSECOND / STEPPER_TIMER_TICKS_PER_US)
-
-#define PULSE_TIMER_RATE       STEPPER_TIMER_RATE   // frequency of pulse timer
-#define PULSE_TIMER_PRESCALE   STEPPER_TIMER_PRESCALE
-#define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US
-
-#define ENABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_enable_interrupt(STEP_TIMER_NUM)
-#define DISABLE_STEPPER_DRIVER_INTERRUPT()  HAL_timer_disable_interrupt(STEP_TIMER_NUM)
-#define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(STEP_TIMER_NUM)
-
-#define ENABLE_TEMPERATURE_INTERRUPT()  HAL_timer_enable_interrupt(TEMP_TIMER_NUM)
-#define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(TEMP_TIMER_NUM)
-
-#ifndef HAL_STEP_TIMER_ISR
-  #define HAL_STEP_TIMER_ISR() void TC2_Handler()
-#endif
-#ifndef HAL_TEMP_TIMER_ISR
-  #define HAL_TEMP_TIMER_ISR() void TC4_Handler()
-#endif
-#ifndef HAL_TONE_TIMER_ISR
-  #define HAL_TONE_TIMER_ISR() void TC6_Handler()
-#endif
-
-// ------------------------
-// Types
-// ------------------------
-
-typedef struct {
-  Tc          *pTimerRegs;
-  uint16_t    channel;
-  IRQn_Type   IRQ_Id;
-  uint8_t     priority;
-} tTimerConfig;
-
-// ------------------------
-// Public Variables
-// ------------------------
-
-extern const tTimerConfig TimerConfig[];
-
-// ------------------------
-// Public functions
-// ------------------------
-
-void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency);
-
-FORCE_INLINE static void HAL_timer_set_compare(const uint8_t timer_num, const hal_timer_t compare) {
-  const tTimerConfig * const pConfig = &TimerConfig[timer_num];
-  pConfig->pTimerRegs->TC_CHANNEL[pConfig->channel].TC_RC = compare;
-}
-
-FORCE_INLINE static hal_timer_t HAL_timer_get_compare(const uint8_t timer_num) {
-  const tTimerConfig * const pConfig = &TimerConfig[timer_num];
-  return pConfig->pTimerRegs->TC_CHANNEL[pConfig->channel].TC_RC;
-}
-
-FORCE_INLINE static hal_timer_t HAL_timer_get_count(const uint8_t timer_num) {
-  const tTimerConfig * const pConfig = &TimerConfig[timer_num];
-  return pConfig->pTimerRegs->TC_CHANNEL[pConfig->channel].TC_CV;
-}
-
-void HAL_timer_enable_interrupt(const uint8_t timer_num);
-void HAL_timer_disable_interrupt(const uint8_t timer_num);
-bool HAL_timer_interrupt_enabled(const uint8_t timer_num);
-
-FORCE_INLINE static void HAL_timer_isr_prologue(const uint8_t timer_num) {
-  const tTimerConfig * const pConfig = &TimerConfig[timer_num];
-  // Reading the status register clears the interrupt flag
-  pConfig->pTimerRegs->TC_CHANNEL[pConfig->channel].TC_SR;
-}
-
-#define HAL_timer_isr_epilogue(TIMER_NUM)

Marlin/src/HAL/DUE/upload_extra_script.py

@@ -1,18 +0,0 @@
-#
-# Set upload_command
-#
-#  Windows: bossac.exe
-#  Other: leave unchanged
-#
-
-import platform
-current_OS = platform.system()
-
-if current_OS == 'Windows':
-
-	Import("env")
-
-	# Use bossac.exe on Windows
-	env.Replace(
-	    UPLOADCMD="bossac --info --unlock --write --verify --reset --erase -U false --boot $SOURCE"
-	)

Marlin/src/HAL/DUE/watchdog.cpp

@@ -1,114 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#ifdef ARDUINO_ARCH_SAM
-
-#include "../../inc/MarlinConfig.h"
-#include "../../MarlinCore.h"
-#include "watchdog.h"
-
-// Override Arduino runtime to either config or disable the watchdog
-//
-// We need to configure the watchdog as soon as possible in the boot
-// process, because watchdog initialization at hardware reset on SAM3X8E
-// is unreliable, and there is risk of unintended resets if we delay
-// that initialization to a later time.
-void watchdogSetup() {
-
-  #if ENABLED(USE_WATCHDOG)
-
-    // 4 seconds timeout
-    uint32_t timeout = TERN(WATCHDOG_DURATION_8S, 8000, 4000);
-
-    // Calculate timeout value in WDT counter ticks: This assumes
-    // the slow clock is running at 32.768 kHz watchdog
-    // frequency is therefore 32768 / 128 = 256 Hz
-    timeout = (timeout << 8) / 1000;
-    if (timeout == 0)
-      timeout = 1;
-    else if (timeout > 0xFFF)
-      timeout = 0xFFF;
-
-    // We want to enable the watchdog with the specified timeout
-    uint32_t value =
-      WDT_MR_WDV(timeout) |               // With the specified timeout
-      WDT_MR_WDD(timeout) |               // and no invalid write window
-    #if !(SAMV70 || SAMV71 || SAME70 || SAMS70)
-      WDT_MR_WDRPROC   |                  // WDT fault resets processor only - We want
-                                          // to keep PIO controller state
-    #endif
-      WDT_MR_WDDBGHLT  |                  // WDT stops in debug state.
-      WDT_MR_WDIDLEHLT;                   // WDT stops in idle state.
-
-    #if ENABLED(WATCHDOG_RESET_MANUAL)
-      // We enable the watchdog timer, but only for the interrupt.
-
-      // Configure WDT to only trigger an interrupt
-      value |= WDT_MR_WDFIEN;             // Enable WDT fault interrupt.
-
-      // Disable WDT interrupt (just in case, to avoid triggering it!)
-      NVIC_DisableIRQ(WDT_IRQn);
-
-      // We NEED memory barriers to ensure Interrupts are actually disabled!
-      // ( https://dzone.com/articles/nvic-disabling-interrupts-on-arm-cortex-m-and-the )
-      __DSB();
-      __ISB();
-
-      // Initialize WDT with the given parameters
-      WDT_Enable(WDT, value);
-
-      // Configure and enable WDT interrupt.
-      NVIC_ClearPendingIRQ(WDT_IRQn);
-      NVIC_SetPriority(WDT_IRQn, 0); // Use highest priority, so we detect all kinds of lockups
-      NVIC_EnableIRQ(WDT_IRQn);
-
-    #else
-
-      // a WDT fault triggers a reset
-      value |= WDT_MR_WDRSTEN;
-
-      // Initialize WDT with the given parameters
-      WDT_Enable(WDT, value);
-
-    #endif
-
-    // Reset the watchdog
-    WDT_Restart(WDT);
-
-  #else
-
-    // Make sure to completely disable the Watchdog
-    WDT_Disable(WDT);
-
-  #endif
-}
-
-#if ENABLED(USE_WATCHDOG)
-  // Initialize watchdog - On SAM3X, Watchdog was already configured
-  //  and enabled or disabled at startup, so no need to reconfigure it
-  //  here.
-  void watchdog_init() {
-    // Reset watchdog to start clean
-    WDT_Restart(WDT);
-  }
-#endif // USE_WATCHDOG
-
-#endif

Marlin/src/HAL/DUE/watchdog.h

@@ -1,33 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-// Arduino Due core now has watchdog support
-
-#include "HAL.h"
-
-// Initialize watchdog with a 4 second interrupt time
-void watchdog_init();
-
-// Reset watchdog. MUST be called at least every 4 seconds after the
-// first watchdog_init or AVR will go into emergency procedures.
-inline void HAL_watchdog_refresh() { watchdogReset(); }

Marlin/src/HAL/ESP32/FlushableHardwareSerial.cpp

@@ -1,30 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
-#include "FlushableHardwareSerial.h"
-
-#ifdef ARDUINO_ARCH_ESP32
-
-
-Serial0Type<FlushableHardwareSerial> flushableSerial(false, 0);
-
-#endif // ARDUINO_ARCH_ESP32

Marlin/src/HAL/ESP32/FlushableHardwareSerial.h

@@ -1,36 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-#ifdef ARDUINO_ARCH_ESP32
-
-#include <HardwareSerial.h>
-#include "../../core/serial_hook.h"
-
-class FlushableHardwareSerial : public HardwareSerial {
-public:
-  FlushableHardwareSerial(int uart_nr) : HardwareSerial(uart_nr) {}
-};
-
-extern Serial0Type<FlushableHardwareSerial> flushableSerial;
-
-#endif // ARDUINO_ARCH_ESP32

Marlin/src/HAL/ESP32/HAL.cpp

@@ -1,280 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#ifdef ARDUINO_ARCH_ESP32
-
-#include "../../inc/MarlinConfig.h"
-
-#include <rom/rtc.h>
-#include <driver/adc.h>
-#include <esp_adc_cal.h>
-#include <HardwareSerial.h>
-
-#if ENABLED(WIFISUPPORT)
-  #include <ESPAsyncWebServer.h>
-  #include "wifi.h"
-  #if ENABLED(OTASUPPORT)
-    #include "ota.h"
-  #endif
-  #if ENABLED(WEBSUPPORT)
-    #include "spiffs.h"
-    #include "web.h"
-  #endif
-#endif
-
-#if ENABLED(ESP3D_WIFISUPPORT)
-  DefaultSerial MSerial(false, Serial2Socket);
-#endif
-
-// ------------------------
-// Externs
-// ------------------------
-
-portMUX_TYPE spinlock = portMUX_INITIALIZER_UNLOCKED;
-
-// ------------------------
-// Local defines
-// ------------------------
-
-#define V_REF 1100
-
-// ------------------------
-// Public Variables
-// ------------------------
-
-uint16_t HAL_adc_result;
-
-// ------------------------
-// Private Variables
-// ------------------------
-
-esp_adc_cal_characteristics_t characteristics[ADC_ATTEN_MAX];
-adc_atten_t attenuations[ADC1_CHANNEL_MAX] = {};
-uint32_t thresholds[ADC_ATTEN_MAX];
-volatile int numPWMUsed = 0,
-             pwmPins[MAX_PWM_PINS],
-             pwmValues[MAX_PWM_PINS];
-
-// ------------------------
-// Public functions
-// ------------------------
-
-#if ENABLED(WIFI_CUSTOM_COMMAND)
-
-  bool wifi_custom_command(char * const command_ptr) {
-    #if ENABLED(ESP3D_WIFISUPPORT)
-      return esp3dlib.parse(command_ptr);
-    #else
-      UNUSED(command_ptr);
-      return false;
-    #endif
-  }
-
-#endif
-
-void HAL_init_board() {
-
-  #if ENABLED(ESP3D_WIFISUPPORT)
-    esp3dlib.init();
-  #elif ENABLED(WIFISUPPORT)
-    wifi_init();
-    TERN_(OTASUPPORT, OTA_init());
-    #if ENABLED(WEBSUPPORT)
-      spiffs_init();
-      web_init();
-    #endif
-    server.begin();
-  #endif
-
-  // ESP32 uses a GPIO matrix that allows pins to be assigned to hardware serial ports.
-  // The following code initializes hardware Serial1 and Serial2 to use user-defined pins
-  // if they have been defined.
-  #if defined(HARDWARE_SERIAL1_RX) && defined(HARDWARE_SERIAL1_TX)
-    HardwareSerial Serial1(1);
-    #ifdef TMC_BAUD_RATE  // use TMC_BAUD_RATE for Serial1 if defined
-      Serial1.begin(TMC_BAUD_RATE, SERIAL_8N1, HARDWARE_SERIAL1_RX, HARDWARE_SERIAL1_TX);
-    #else  // use default BAUDRATE if TMC_BAUD_RATE not defined
-      Serial1.begin(BAUDRATE, SERIAL_8N1, HARDWARE_SERIAL1_RX, HARDWARE_SERIAL1_TX);
-    #endif
-  #endif
-  #if defined(HARDWARE_SERIAL2_RX) && defined(HARDWARE_SERIAL2_TX)
-    HardwareSerial Serial2(2);
-    #ifdef TMC_BAUD_RATE  // use TMC_BAUD_RATE for Serial1 if defined
-      Serial2.begin(TMC_BAUD_RATE, SERIAL_8N1, HARDWARE_SERIAL2_RX, HARDWARE_SERIAL2_TX);
-    #else  // use default BAUDRATE if TMC_BAUD_RATE not defined
-      Serial2.begin(BAUDRATE, SERIAL_8N1, HARDWARE_SERIAL2_RX, HARDWARE_SERIAL2_TX);
-    #endif
-  #endif
-
-  // Initialize the i2s peripheral only if the I2S stepper stream is enabled.
-  // The following initialization is performed after Serial1 and Serial2 are defined as
-  // their native pins might conflict with the i2s stream even when they are remapped.
-  TERN_(I2S_STEPPER_STREAM, i2s_init());
-}
-
-void HAL_idletask() {
-  #if BOTH(WIFISUPPORT, OTASUPPORT)
-    OTA_handle();
-  #endif
-  TERN_(ESP3D_WIFISUPPORT, esp3dlib.idletask());
-}
-
-void HAL_clear_reset_source() { }
-
-uint8_t HAL_get_reset_source() { return rtc_get_reset_reason(1); }
-
-void _delay_ms(int delay_ms) { delay(delay_ms); }
-
-// return free memory between end of heap (or end bss) and whatever is current
-int freeMemory() { return ESP.getFreeHeap(); }
-
-// ------------------------
-// ADC
-// ------------------------
-#define ADC1_CHANNEL(pin) ADC1_GPIO ## pin ## _CHANNEL
-
-adc1_channel_t get_channel(int pin) {
-  switch (pin) {
-    case 39: return ADC1_CHANNEL(39);
-    case 36: return ADC1_CHANNEL(36);
-    case 35: return ADC1_CHANNEL(35);
-    case 34: return ADC1_CHANNEL(34);
-    case 33: return ADC1_CHANNEL(33);
-    case 32: return ADC1_CHANNEL(32);
-  }
-  return ADC1_CHANNEL_MAX;
-}
-
-void adc1_set_attenuation(adc1_channel_t chan, adc_atten_t atten) {
-  if (attenuations[chan] != atten) {
-    adc1_config_channel_atten(chan, atten);
-    attenuations[chan] = atten;
-  }
-}
-
-void HAL_adc_init() {
-  // Configure ADC
-  adc1_config_width(ADC_WIDTH_12Bit);
-
-  // Configure channels only if used as (re-)configuring a pin for ADC that is used elsewhere might have adverse effects
-  TERN_(HAS_TEMP_ADC_0, adc1_set_attenuation(get_channel(TEMP_0_PIN), ADC_ATTEN_11db));
-  TERN_(HAS_TEMP_ADC_1, adc1_set_attenuation(get_channel(TEMP_1_PIN), ADC_ATTEN_11db));
-  TERN_(HAS_TEMP_ADC_2, adc1_set_attenuation(get_channel(TEMP_2_PIN), ADC_ATTEN_11db));
-  TERN_(HAS_TEMP_ADC_3, adc1_set_attenuation(get_channel(TEMP_3_PIN), ADC_ATTEN_11db));
-  TERN_(HAS_TEMP_ADC_4, adc1_set_attenuation(get_channel(TEMP_4_PIN), ADC_ATTEN_11db));
-  TERN_(HAS_TEMP_ADC_5, adc1_set_attenuation(get_channel(TEMP_5_PIN), ADC_ATTEN_11db));
-  TERN_(HAS_TEMP_ADC_6, adc2_set_attenuation(get_channel(TEMP_6_PIN), ADC_ATTEN_11db));
-  TERN_(HAS_TEMP_ADC_7, adc3_set_attenuation(get_channel(TEMP_7_PIN), ADC_ATTEN_11db));
-  TERN_(HAS_HEATED_BED, adc1_set_attenuation(get_channel(TEMP_BED_PIN), ADC_ATTEN_11db));
-  TERN_(HAS_TEMP_CHAMBER, adc1_set_attenuation(get_channel(TEMP_CHAMBER_PIN), ADC_ATTEN_11db));
-  TERN_(FILAMENT_WIDTH_SENSOR, adc1_set_attenuation(get_channel(FILWIDTH_PIN), ADC_ATTEN_11db));
-
-  // Note that adc2 is shared with the WiFi module, which has higher priority, so the conversion may fail.
-  // That's why we're not setting it up here.
-
-  // Calculate ADC characteristics (i.e., gain and offset factors for each attenuation level)
-  for (int i = 0; i < ADC_ATTEN_MAX; i++) {
-    esp_adc_cal_characterize(ADC_UNIT_1, (adc_atten_t)i, ADC_WIDTH_BIT_12, V_REF, &characteristics[i]);
-
-    // Change attenuation 100mV below the calibrated threshold
-    thresholds[i] = esp_adc_cal_raw_to_voltage(4095, &characteristics[i]);
-  }
-}
-
-void HAL_adc_start_conversion(const uint8_t adc_pin) {
-  const adc1_channel_t chan = get_channel(adc_pin);
-  uint32_t mv;
-  esp_adc_cal_get_voltage((adc_channel_t)chan, &characteristics[attenuations[chan]], &mv);
-  HAL_adc_result = mv * 1023.0 / 3300.0;
-
-  // Change the attenuation level based on the new reading
-  adc_atten_t atten;
-  if (mv < thresholds[ADC_ATTEN_DB_0] - 100)
-    atten = ADC_ATTEN_DB_0;
-  else if (mv > thresholds[ADC_ATTEN_DB_0] - 50 && mv < thresholds[ADC_ATTEN_DB_2_5] - 100)
-    atten = ADC_ATTEN_DB_2_5;
-  else if (mv > thresholds[ADC_ATTEN_DB_2_5] - 50 && mv < thresholds[ADC_ATTEN_DB_6] - 100)
-    atten = ADC_ATTEN_DB_6;
-  else if (mv > thresholds[ADC_ATTEN_DB_6] - 50)
-    atten = ADC_ATTEN_DB_11;
-  else return;
-
-  adc1_set_attenuation(chan, atten);
-}
-
-void analogWrite(pin_t pin, int value) {
-  // Use ledc hardware for internal pins
-  if (pin < 34) {
-    static int cnt_channel = 1, pin_to_channel[40] = { 0 };
-    if (pin_to_channel[pin] == 0) {
-      ledcAttachPin(pin, cnt_channel);
-      ledcSetup(cnt_channel, 490, 8);
-      ledcWrite(cnt_channel, value);
-      pin_to_channel[pin] = cnt_channel++;
-    }
-    ledcWrite(pin_to_channel[pin], value);
-    return;
-  }
-
-  int idx = -1;
-
-  // Search Pin
-  for (int i = 0; i < numPWMUsed; ++i)
-    if (pwmPins[i] == pin) { idx = i; break; }
-
-  // not found ?
-  if (idx < 0) {
-    // No slots remaining
-    if (numPWMUsed >= MAX_PWM_PINS) return;
-
-    // Take new slot for pin
-    idx = numPWMUsed;
-    pwmPins[idx] = pin;
-    // Start timer on first use
-    if (idx == 0) HAL_timer_start(PWM_TIMER_NUM, PWM_TIMER_FREQUENCY);
-
-    ++numPWMUsed;
-  }
-
-  // Use 7bit internal value - add 1 to have 100% high at 255
-  pwmValues[idx] = (value + 1) / 2;
-}
-
-// Handle PWM timer interrupt
-HAL_PWM_TIMER_ISR() {
-  HAL_timer_isr_prologue(PWM_TIMER_NUM);
-
-  static uint8_t count = 0;
-
-  for (int i = 0; i < numPWMUsed; ++i) {
-    if (count == 0)                   // Start of interval
-      WRITE(pwmPins[i], pwmValues[i] ? HIGH : LOW);
-    else if (pwmValues[i] == count)   // End of duration
-      WRITE(pwmPins[i], LOW);
-  }
-
-  // 128 for 7 Bit resolution
-  count = (count + 1) & 0x7F;
-
-  HAL_timer_isr_epilogue(PWM_TIMER_NUM);
-}
-
-#endif // ARDUINO_ARCH_ESP32

Marlin/src/HAL/ESP32/HAL.h

@@ -1,184 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-/**
- * HAL for Espressif ESP32 WiFi
- */
-
-#define CPU_32_BIT
-
-#include <stdint.h>
-
-#include "../shared/Marduino.h"
-#include "../shared/math_32bit.h"
-#include "../shared/HAL_SPI.h"
-
-#include "fastio.h"
-#include "watchdog.h"
-#include "i2s.h"
-
-#if ENABLED(WIFISUPPORT)
-  #include "WebSocketSerial.h"
-#endif
-
-#if ENABLED(ESP3D_WIFISUPPORT)
-  #include "esp3dlib.h"
-#endif
-
-#include "FlushableHardwareSerial.h"
-
-// ------------------------
-// Defines
-// ------------------------
-
-extern portMUX_TYPE spinlock;
-
-#define MYSERIAL0 flushableSerial
-
-#if EITHER(WIFISUPPORT, ESP3D_WIFISUPPORT)
-  #if ENABLED(ESP3D_WIFISUPPORT)
-    typedef ForwardSerial0Type< decltype(Serial2Socket) > DefaultSerial;
-    extern DefaultSerial MSerial;
-    #define MYSERIAL1 MSerial
-  #else
-    #define MYSERIAL1 webSocketSerial
-  #endif
-#endif
-
-#define CRITICAL_SECTION_START() portENTER_CRITICAL(&spinlock)
-#define CRITICAL_SECTION_END()   portEXIT_CRITICAL(&spinlock)
-#define ISRS_ENABLED() (spinlock.owner == portMUX_FREE_VAL)
-#define ENABLE_ISRS()  if (spinlock.owner != portMUX_FREE_VAL) portEXIT_CRITICAL(&spinlock)
-#define DISABLE_ISRS() portENTER_CRITICAL(&spinlock)
-
-// ------------------------
-// Types
-// ------------------------
-
-typedef int16_t pin_t;
-
-#define HAL_SERVO_LIB Servo
-
-// ------------------------
-// Public Variables
-// ------------------------
-
-/** result of last ADC conversion */
-extern uint16_t HAL_adc_result;
-
-// ------------------------
-// Public functions
-// ------------------------
-
-//
-// Tone
-//
-void toneInit();
-void tone(const pin_t _pin, const unsigned int frequency, const unsigned long duration=0);
-void noTone(const pin_t _pin);
-
-// clear reset reason
-void HAL_clear_reset_source();
-
-// reset reason
-uint8_t HAL_get_reset_source();
-
-inline void HAL_reboot() {}  // reboot the board or restart the bootloader
-
-void _delay_ms(int delay);
-
-#if GCC_VERSION <= 50000
-  #pragma GCC diagnostic push
-  #pragma GCC diagnostic ignored "-Wunused-function"
-#endif
-
-int freeMemory();
-
-#if GCC_VERSION <= 50000
-  #pragma GCC diagnostic pop
-#endif
-
-void analogWrite(pin_t pin, int value);
-
-// ADC
-#define HAL_ANALOG_SELECT(pin)
-
-void HAL_adc_init();
-
-#define HAL_ADC_VREF         3.3
-#define HAL_ADC_RESOLUTION  10
-#define HAL_START_ADC(pin)  HAL_adc_start_conversion(pin)
-#define HAL_READ_ADC()      HAL_adc_result
-#define HAL_ADC_READY()     true
-
-void HAL_adc_start_conversion(const uint8_t adc_pin);
-
-#define GET_PIN_MAP_PIN(index) index
-#define GET_PIN_MAP_INDEX(pin) pin
-#define PARSED_PIN_INDEX(code, dval) parser.intval(code, dval)
-
-// Enable hooks into idle and setup for HAL
-#define HAL_IDLETASK 1
-#define BOARD_INIT() HAL_init_board();
-void HAL_idletask();
-inline void HAL_init() {}
-void HAL_init_board();
-
-//
-// Delay in cycles (used by DELAY_NS / DELAY_US)
-//
-FORCE_INLINE static void DELAY_CYCLES(uint32_t x) {
-  unsigned long start, ccount, stop;
-
-  /**
-   * It's important to care for race conditions (and overflows) here.
-   * Race condition example: If `stop` calculates to being close to the upper boundary of
-   * `uint32_t` and if at the same time a longer loop interruption kicks in (e.g. due to other
-   * FreeRTOS tasks or interrupts), `ccount` might overflow (and therefore be below `stop` again)
-   * without the loop ever being able to notice that `ccount` had already been above `stop` once
-   * (and that therefore the number of cycles to delay has already passed).
-   * As DELAY_CYCLES (through DELAY_NS / DELAY_US) is used by software SPI bit banging to drive
-   * LCDs and therefore might be called very, very often, this seemingly improbable situation did
-   * actually happen in reality. It resulted in apparently random print pauses of ~17.9 seconds
-   * (0x100000000 / 240 MHz) or multiples thereof, essentially ruining the current print by causing
-   * large blobs of filament.
-   */
-
-  __asm__ __volatile__ ( "rsr     %0, ccount" : "=a" (start) );
-  stop = start + x;
-  ccount = start;
-
-  if (stop >= start) {
-    // no overflow, so only loop while in between start and stop:
-    // 0x00000000 -----------------start****stop-- 0xFFFFFFFF
-    while (ccount >= start && ccount < stop) {
-      __asm__ __volatile__ ( "rsr     %0, ccount" : "=a" (ccount) );
-    }
-  }
-  else {
-    // stop did overflow, so only loop while outside of stop and start:
-    // 0x00000000 **stop-------------------start** 0xFFFFFFFF
-    while (ccount >= start || ccount < stop) {
-      __asm__ __volatile__ ( "rsr     %0, ccount" : "=a" (ccount) );
-    }
-  }
-
-}

Marlin/src/HAL/ESP32/HAL_SPI.cpp

@@ -1,115 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- * Copyright (c) 2017 Victor Perez
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#ifdef ARDUINO_ARCH_ESP32
-
-#include "../../inc/MarlinConfig.h"
-
-#include "../shared/HAL_SPI.h"
-
-#include <pins_arduino.h>
-#include <SPI.h>
-
-// ------------------------
-// Public Variables
-// ------------------------
-
-static SPISettings spiConfig;
-
-// ------------------------
-// Public functions
-// ------------------------
-
-#if ENABLED(SOFTWARE_SPI)
-
-  // ------------------------
-  // Software SPI
-  // ------------------------
-  #error "Software SPI not supported for ESP32. Use Hardware SPI."
-
-#else
-
-// ------------------------
-// Hardware SPI
-// ------------------------
-
-void spiBegin() {
-  #if !PIN_EXISTS(SD_SS)
-    #error "SD_SS_PIN not defined!"
-  #endif
-
-  OUT_WRITE(SD_SS_PIN, HIGH);
-}
-
-void spiInit(uint8_t spiRate) {
-  uint32_t clock;
-
-  switch (spiRate) {
-    case SPI_FULL_SPEED:      clock = 16000000; break;
-    case SPI_HALF_SPEED:      clock = 8000000;  break;
-    case SPI_QUARTER_SPEED:   clock = 4000000;  break;
-    case SPI_EIGHTH_SPEED:    clock = 2000000;  break;
-    case SPI_SIXTEENTH_SPEED: clock = 1000000;  break;
-    case SPI_SPEED_5:         clock = 500000;   break;
-    case SPI_SPEED_6:         clock = 250000;   break;
-    default:                  clock = 1000000; // Default from the SPI library
-  }
-
-  spiConfig = SPISettings(clock, MSBFIRST, SPI_MODE0);
-  SPI.begin();
-}
-
-uint8_t spiRec() {
-  SPI.beginTransaction(spiConfig);
-  uint8_t returnByte = SPI.transfer(0xFF);
-  SPI.endTransaction();
-  return returnByte;
-}
-
-void spiRead(uint8_t* buf, uint16_t nbyte) {
-  SPI.beginTransaction(spiConfig);
-  SPI.transferBytes(0, buf, nbyte);
-  SPI.endTransaction();
-}
-
-void spiSend(uint8_t b) {
-  SPI.beginTransaction(spiConfig);
-  SPI.transfer(b);
-  SPI.endTransaction();
-}
-
-void spiSendBlock(uint8_t token, const uint8_t* buf) {
-  SPI.beginTransaction(spiConfig);
-  SPI.transfer(token);
-  SPI.writeBytes(const_cast<uint8_t*>(buf), 512);
-  SPI.endTransaction();
-}
-
-void spiBeginTransaction(uint32_t spiClock, uint8_t bitOrder, uint8_t dataMode) {
-  spiConfig = SPISettings(spiClock, bitOrder, dataMode);
-
-  SPI.beginTransaction(spiConfig);
-}
-
-#endif // !SOFTWARE_SPI
-
-#endif // ARDUINO_ARCH_ESP32

Marlin/src/HAL/ESP32/Servo.cpp

@@ -1,69 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#ifdef ARDUINO_ARCH_ESP32
-
-#include "../../inc/MarlinConfig.h"
-
-#if HAS_SERVOS
-
-#include "Servo.h"
-
-// Adjacent channels (0/1, 2/3 etc.) share the same timer and therefore the same frequency and resolution settings on ESP32,
-// so we only allocate servo channels up high to avoid side effects with regards to analogWrite (fans, leds, laser pwm etc.)
-int Servo::channel_next_free = 12;
-
-Servo::Servo() {
-  channel = channel_next_free++;
-}
-
-int8_t Servo::attach(const int inPin) {
-  if (channel >= CHANNEL_MAX_NUM) return -1;
-  if (inPin > 0) pin = inPin;
-
-  ledcSetup(channel, 50, 16); // channel X, 50 Hz, 16-bit depth
-  ledcAttachPin(pin, channel);
-  return true;
-}
-
-void Servo::detach() { ledcDetachPin(pin); }
-
-int Servo::read() { return degrees; }
-
-void Servo::write(int inDegrees) {
-  degrees = constrain(inDegrees, MIN_ANGLE, MAX_ANGLE);
-  int us = map(degrees, MIN_ANGLE, MAX_ANGLE, MIN_PULSE_WIDTH, MAX_PULSE_WIDTH);
-  int duty = map(us, 0, TAU_USEC, 0, MAX_COMPARE);
-  ledcWrite(channel, duty);
-}
-
-void Servo::move(const int value) {
-  constexpr uint16_t servo_delay[] = SERVO_DELAY;
-  static_assert(COUNT(servo_delay) == NUM_SERVOS, "SERVO_DELAY must be an array NUM_SERVOS long.");
-  if (attach(0) >= 0) {
-    write(value);
-    safe_delay(servo_delay[channel]);
-    TERN_(DEACTIVATE_SERVOS_AFTER_MOVE, detach());
-  }
-}
-#endif // HAS_SERVOS
-
-#endif // ARDUINO_ARCH_ESP32

Marlin/src/HAL/ESP32/Servo.h

@@ -1,49 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-#include <Arduino.h>
-
-class Servo {
-  static const int MIN_ANGLE =   0,
-                   MAX_ANGLE = 180,
-                   MIN_PULSE_WIDTH =  544,  // Shortest pulse sent to a servo
-                   MAX_PULSE_WIDTH = 2400,  // Longest pulse sent to a servo
-                   TAU_MSEC = 20,
-                   TAU_USEC = (TAU_MSEC * 1000),
-                   MAX_COMPARE = _BV(16) - 1, // 65535
-                   CHANNEL_MAX_NUM = 16;
-
-public:
-  Servo();
-  int8_t attach(const int pin);   // attach the given pin to the next free channel, set pinMode, return channel number (-1 on fail)
-  void detach();
-  void write(int degrees);        // set angle
-  void move(const int degrees);   // attach the servo, then move to value
-  int read();                     // returns current pulse width as an angle between 0 and 180 degrees
-
-private:
-  static int channel_next_free;
-  int channel;
-  int pin;
-  int degrees;
-};

Marlin/src/HAL/ESP32/Tone.cpp

@@ -1,59 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * Copypaste of SAMD51 HAL developed by Giuliano Zaro (AKA GMagician)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
-/**
- * Description: Tone function for ESP32
- * Derived from https://forum.arduino.cc/index.php?topic=136500.msg2903012#msg2903012
- */
-
-#ifdef ARDUINO_ARCH_ESP32
-
-#include "../../inc/MarlinConfig.h"
-#include "HAL.h"
-
-static pin_t tone_pin;
-volatile static int32_t toggles;
-
-void tone(const pin_t _pin, const unsigned int frequency, const unsigned long duration) {
-  tone_pin = _pin;
-  toggles = 2 * frequency * duration / 1000;
-  HAL_timer_start(TONE_TIMER_NUM, 2 * frequency);
-}
-
-void noTone(const pin_t _pin) {
-  HAL_timer_disable_interrupt(TONE_TIMER_NUM);
-  WRITE(_pin, LOW);
-}
-
-HAL_TONE_TIMER_ISR() {
-  HAL_timer_isr_prologue(TONE_TIMER_NUM);
-
-  if (toggles) {
-    toggles--;
-    TOGGLE(tone_pin);
-  }
-  else noTone(tone_pin);                         // turn off interrupt
-}
-
-#endif // ARDUINO_ARCH_ESP32

Marlin/src/HAL/ESP32/eeprom.cpp

@@ -1,57 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#ifdef ARDUINO_ARCH_ESP32
-
-#include "../../inc/MarlinConfig.h"
-
-#if ENABLED(EEPROM_SETTINGS)
-
-#include "../shared/eeprom_api.h"
-#include <EEPROM.h>
-
-#ifndef MARLIN_EEPROM_SIZE
-  #define MARLIN_EEPROM_SIZE 0x1000 // 4KB
-#endif
-size_t PersistentStore::capacity()    { return MARLIN_EEPROM_SIZE; }
-
-bool PersistentStore::access_start()  { return EEPROM.begin(MARLIN_EEPROM_SIZE); }
-bool PersistentStore::access_finish() { EEPROM.end(); return true; }
-
-bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
-  for (size_t i = 0; i < size; i++) {
-    EEPROM.write(pos++, value[i]);
-    crc16(crc, &value[i], 1);
-  }
-  return false;
-}
-
-bool PersistentStore::read_data(int &pos, uint8_t *value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
-  for (size_t i = 0; i < size; i++) {
-    uint8_t c = EEPROM.read(pos++);
-    if (writing) value[i] = c;
-    crc16(crc, &c, 1);
-  }
-  return false;
-}
-
-#endif // EEPROM_SETTINGS
-#endif // ARDUINO_ARCH_ESP32

Marlin/src/HAL/ESP32/endstop_interrupts.h

@@ -1,62 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-/**
- * Endstop Interrupts
- *
- * Without endstop interrupts the endstop pins must be polled continually in
- * the stepper-ISR via endstops.update(), most of the time finding no change.
- * With this feature endstops.update() is called only when we know that at
- * least one endstop has changed state, saving valuable CPU cycles.
- *
- * This feature only works when all used endstop pins can generate an 'external interrupt'.
- *
- * Test whether pins issue interrupts on your board by flashing 'pin_interrupt_test.ino'.
- * (Located in Marlin/buildroot/share/pin_interrupt_test/pin_interrupt_test.ino)
- */
-
-#include "../../module/endstops.h"
-
-// One ISR for all EXT-Interrupts
-void ICACHE_RAM_ATTR endstop_ISR() { endstops.update(); }
-
-void setup_endstop_interrupts() {
-  #define _ATTACH(P) attachInterrupt(digitalPinToInterrupt(P), endstop_ISR, CHANGE)
-  TERN_(HAS_X_MAX, _ATTACH(X_MAX_PIN));
-  TERN_(HAS_X_MIN, _ATTACH(X_MIN_PIN));
-  TERN_(HAS_Y_MAX, _ATTACH(Y_MAX_PIN));
-  TERN_(HAS_Y_MIN, _ATTACH(Y_MIN_PIN));
-  TERN_(HAS_Z_MAX, _ATTACH(Z_MAX_PIN));
-  TERN_(HAS_Z_MIN, _ATTACH(Z_MIN_PIN));
-  TERN_(HAS_X2_MAX, _ATTACH(X2_MAX_PIN));
-  TERN_(HAS_X2_MIN, _ATTACH(X2_MIN_PIN));
-  TERN_(HAS_Y2_MAX, _ATTACH(Y2_MAX_PIN));
-  TERN_(HAS_Y2_MIN, _ATTACH(Y2_MIN_PIN));
-  TERN_(HAS_Z2_MAX, _ATTACH(Z2_MAX_PIN));
-  TERN_(HAS_Z2_MIN, _ATTACH(Z2_MIN_PIN));
-  TERN_(HAS_Z3_MAX, _ATTACH(Z3_MAX_PIN));
-  TERN_(HAS_Z3_MIN, _ATTACH(Z3_MIN_PIN));
-  TERN_(HAS_Z4_MAX, _ATTACH(Z4_MAX_PIN));
-  TERN_(HAS_Z4_MIN, _ATTACH(Z4_MIN_PIN));
-  TERN_(HAS_Z_MIN_PROBE_PIN, _ATTACH(Z_MIN_PROBE_PIN));
-}

Marlin/src/HAL/ESP32/fastio.h

@@ -1,87 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-#include "i2s.h"
-
-/**
- * Utility functions
- */
-
-// I2S expander pin mapping.
-#define IS_I2S_EXPANDER_PIN(IO) TEST(IO, 7)
-#define I2S_EXPANDER_PIN_INDEX(IO) (IO & 0x7F)
-
-// Set pin as input
-#define _SET_INPUT(IO)          pinMode(IO, INPUT)
-
-// Set pin as output
-#define _SET_OUTPUT(IO)         pinMode(IO, OUTPUT)
-
-// Set pin as input with pullup mode
-#define _PULLUP(IO, v)          pinMode(IO, v ? INPUT_PULLUP : INPUT)
-
-// Read a pin wrapper
-#define READ(IO)                (IS_I2S_EXPANDER_PIN(IO) ? i2s_state(I2S_EXPANDER_PIN_INDEX(IO)) : digitalRead(IO))
-
-// Write to a pin wrapper
-#define WRITE(IO, v)            (IS_I2S_EXPANDER_PIN(IO) ? i2s_write(I2S_EXPANDER_PIN_INDEX(IO), v) : digitalWrite(IO, v))
-
-// Set pin as input wrapper
-#define SET_INPUT(IO)           _SET_INPUT(IO)
-
-// Set pin as input with pullup wrapper
-#define SET_INPUT_PULLUP(IO)    do{ _SET_INPUT(IO); _PULLUP(IO, HIGH); }while(0)
-
-// Set pin as input with pulldown (substitution)
-#define SET_INPUT_PULLDOWN      SET_INPUT
-
-// Set pin as output wrapper
-#define SET_OUTPUT(IO)          do{ _SET_OUTPUT(IO); }while(0)
-
-// Set pin as PWM
-#define SET_PWM                 SET_OUTPUT
-
-// Set pin as output and init
-#define OUT_WRITE(IO,V)         do{ _SET_OUTPUT(IO); WRITE(IO,V); }while(0)
-
-// digitalRead/Write wrappers
-#define extDigitalRead(IO)      digitalRead(IO)
-#define extDigitalWrite(IO,V)   digitalWrite(IO,V)
-
-// PWM outputs
-#define PWM_PIN(P)              (P < 34 || P > 127) // NOTE Pins >= 34 are input only on ESP32, so they can't be used for output.
-
-// Toggle pin value
-#define TOGGLE(IO)              WRITE(IO, !READ(IO))
-
-//
-// Ports and functions
-//
-
-// UART
-#define RXD        3
-#define TXD        1
-
-// TWI (I2C)
-#define SCL        5
-#define SDA        4

Marlin/src/HAL/ESP32/inc/Conditionals_LCD.h

@@ -1,26 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-#if HAS_SPI_TFT || HAS_FSMC_TFT
-  #error "Sorry! TFT displays are not available for HAL/ESP32."
-#endif

Marlin/src/HAL/ESP32/inc/Conditionals_adv.h

@@ -1,22 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once

Marlin/src/HAL/ESP32/inc/Conditionals_post.h

@@ -1,22 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once

Marlin/src/HAL/ESP32/inc/SanityCheck.h

@@ -1,38 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-#if ENABLED(EMERGENCY_PARSER)
-  #error "EMERGENCY_PARSER is not yet implemented for ESP32. Disable EMERGENCY_PARSER to continue."
-#endif
-
-#if ENABLED(FAST_PWM_FAN) || SPINDLE_LASER_FREQUENCY
-  #error "Features requiring Hardware PWM (FAST_PWM_FAN, SPINDLE_LASER_FREQUENCY) are not yet supported on ESP32."
-#endif
-
-#if HAS_TMC_SW_SERIAL
-  #error "TMC220x Software Serial is not supported on this platform."
-#endif
-
-#if BOTH(WIFISUPPORT, ESP3D_WIFISUPPORT)
-  #error "Only enable one WiFi option, either WIFISUPPORT or ESP3D_WIFISUPPORT."
-#endif

Marlin/src/HAL/ESP32/spi_pins.h

@@ -1,24 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-#define SD_SS_PIN   SDSS
-#define SD_SCK_PIN  18
-#define SD_MISO_PIN 19
-#define SD_MOSI_PIN 23

Marlin/src/HAL/ESP32/timers.cpp

@@ -1,171 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#ifdef ARDUINO_ARCH_ESP32
-
-#include <stdio.h>
-#include <esp_types.h>
-#include <soc/timer_group_struct.h>
-#include <driver/periph_ctrl.h>
-#include <driver/timer.h>
-
-#include "../../inc/MarlinConfig.h"
-
-// ------------------------
-// Local defines
-// ------------------------
-
-#define NUM_HARDWARE_TIMERS 4
-
-// ------------------------
-// Private Variables
-// ------------------------
-
-static timg_dev_t *TG[2] = {&TIMERG0, &TIMERG1};
-
-const tTimerConfig TimerConfig [NUM_HARDWARE_TIMERS] = {
-  { TIMER_GROUP_0, TIMER_0, STEPPER_TIMER_PRESCALE, stepTC_Handler }, // 0 - Stepper
-  { TIMER_GROUP_0, TIMER_1,    TEMP_TIMER_PRESCALE, tempTC_Handler }, // 1 - Temperature
-  { TIMER_GROUP_1, TIMER_0,     PWM_TIMER_PRESCALE, pwmTC_Handler  }, // 2 - PWM
-  { TIMER_GROUP_1, TIMER_1,    TONE_TIMER_PRESCALE, toneTC_Handler }, // 3 - Tone
-};
-
-// ------------------------
-// Public functions
-// ------------------------
-
-void IRAM_ATTR timer_isr(void *para) {
-  const tTimerConfig& timer = TimerConfig[(int)para];
-
-  // Retrieve the interrupt status and the counter value
-  // from the timer that reported the interrupt
-  uint32_t intr_status = TG[timer.group]->int_st_timers.val;
-  TG[timer.group]->hw_timer[timer.idx].update = 1;
-
-  // Clear the interrupt
-  if (intr_status & BIT(timer.idx)) {
-    switch (timer.idx) {
-      case TIMER_0: TG[timer.group]->int_clr_timers.t0 = 1; break;
-      case TIMER_1: TG[timer.group]->int_clr_timers.t1 = 1; break;
-      case TIMER_MAX: break;
-    }
-  }
-
-  timer.fn();
-
-  // After the alarm has been triggered
-  // Enable it again so it gets triggered the next time
-  TG[timer.group]->hw_timer[timer.idx].config.alarm_en = TIMER_ALARM_EN;
-}
-
-/**
- * Enable and initialize the timer
- * @param timer_num timer number to initialize
- * @param frequency frequency of the timer
- */
-void HAL_timer_start(const uint8_t timer_num, uint32_t frequency) {
-  const tTimerConfig timer = TimerConfig[timer_num];
-
-  timer_config_t config;
-  config.divider     = timer.divider;
-  config.counter_dir = TIMER_COUNT_UP;
-  config.counter_en  = TIMER_PAUSE;
-  config.alarm_en    = TIMER_ALARM_EN;
-  config.intr_type   = TIMER_INTR_LEVEL;
-  config.auto_reload = true;
-
-  // Select and initialize the timer
-  timer_init(timer.group, timer.idx, &config);
-
-  // Timer counter initial value and auto reload on alarm
-  timer_set_counter_value(timer.group, timer.idx, 0x00000000ULL);
-
-  // Configure the alam value and the interrupt on alarm
-  timer_set_alarm_value(timer.group, timer.idx, (HAL_TIMER_RATE) / timer.divider / frequency - 1);
-
-  timer_enable_intr(timer.group, timer.idx);
-
-  timer_isr_register(timer.group, timer.idx, timer_isr, (void*)(uint32_t)timer_num, 0, nullptr);
-
-  timer_start(timer.group, timer.idx);
-}
-
-/**
- * Set the upper value of the timer, when the timer reaches this upper value the
- * interrupt should be triggered and the counter reset
- * @param timer_num timer number to set the count to
- * @param count     threshold at which the interrupt is triggered
- */
-void HAL_timer_set_compare(const uint8_t timer_num, hal_timer_t count) {
-  const tTimerConfig timer = TimerConfig[timer_num];
-  timer_set_alarm_value(timer.group, timer.idx, count);
-}
-
-/**
- * Get the current upper value of the timer
- * @param  timer_num timer number to get the count from
- * @return           the timer current threshold for the alarm to be triggered
- */
-hal_timer_t HAL_timer_get_compare(const uint8_t timer_num) {
-  const tTimerConfig timer = TimerConfig[timer_num];
-
-  uint64_t alarm_value;
-  timer_get_alarm_value(timer.group, timer.idx, &alarm_value);
-
-  return alarm_value;
-}
-
-/**
- * Get the current counter value between 0 and the maximum count (HAL_timer_set_count)
- * @param  timer_num timer number to get the current count
- * @return           the current counter of the alarm
- */
-hal_timer_t HAL_timer_get_count(const uint8_t timer_num) {
-  const tTimerConfig timer = TimerConfig[timer_num];
-  uint64_t counter_value;
-  timer_get_counter_value(timer.group, timer.idx, &counter_value);
-  return counter_value;
-}
-
-/**
- * Enable timer interrupt on the timer
- * @param timer_num timer number to enable interrupts on
- */
-void HAL_timer_enable_interrupt(const uint8_t timer_num) {
-  //const tTimerConfig timer = TimerConfig[timer_num];
-  //timer_enable_intr(timer.group, timer.idx);
-}
-
-/**
- * Disable timer interrupt on the timer
- * @param timer_num timer number to disable interrupts on
- */
-void HAL_timer_disable_interrupt(const uint8_t timer_num) {
-  //const tTimerConfig timer = TimerConfig[timer_num];
-  //timer_disable_intr(timer.group, timer.idx);
-}
-
-bool HAL_timer_interrupt_enabled(const uint8_t timer_num) {
-  const tTimerConfig timer = TimerConfig[timer_num];
-  return TG[timer.group]->int_ena.val | BIT(timer_num);
-}
-
-#endif // ARDUINO_ARCH_ESP32

Marlin/src/HAL/ESP32/timers.h

@@ -1,140 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-#include <stdint.h>
-#include <driver/timer.h>
-
-// ------------------------
-// Defines
-// ------------------------
-#define FORCE_INLINE __attribute__((always_inline)) inline
-
-typedef uint64_t hal_timer_t;
-#define HAL_TIMER_TYPE_MAX 0xFFFFFFFFFFFFFFFFULL
-
-#ifndef STEP_TIMER_NUM
-  #define STEP_TIMER_NUM        0  // Timer Index for Stepper
-#endif
-#ifndef PULSE_TIMER_NUM
-  #define PULSE_TIMER_NUM       STEP_TIMER_NUM
-#endif
-#ifndef TEMP_TIMER_NUM
-  #define TEMP_TIMER_NUM        1  // Timer Index for Temperature
-#endif
-#ifndef PWM_TIMER_NUM
-  #define PWM_TIMER_NUM         2  // index of timer to use for PWM outputs
-#endif
-#ifndef TONE_TIMER_NUM
-  #define TONE_TIMER_NUM        3  // index of timer for beeper tones
-#endif
-
-#define HAL_TIMER_RATE APB_CLK_FREQ // frequency of timer peripherals
-
-#if ENABLED(I2S_STEPPER_STREAM)
-  #define STEPPER_TIMER_PRESCALE     1
-  #define STEPPER_TIMER_RATE         250000                           // 250khz, 4µs pulses of i2s word clock
-  #define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000) // stepper timer ticks per µs // wrong would be 0.25
-#else
-  #define STEPPER_TIMER_PRESCALE     40
-  #define STEPPER_TIMER_RATE         ((HAL_TIMER_RATE) / (STEPPER_TIMER_PRESCALE)) // frequency of stepper timer, 2MHz
-  #define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000)              // stepper timer ticks per µs
-#endif
-
-#define STEP_TIMER_MIN_INTERVAL   8 // minimum time in µs between stepper interrupts
-
-#define TONE_TIMER_PRESCALE    1000 // Arbitrary value, no idea what i'm doing here
-
-#define TEMP_TIMER_PRESCALE    1000 // prescaler for setting Temp timer, 72Khz
-#define TEMP_TIMER_FREQUENCY   1000 // temperature interrupt frequency
-
-#define PWM_TIMER_PRESCALE       10
-#if ENABLED(FAST_PWM_FAN)
-  #define PWM_TIMER_FREQUENCY  FAST_PWM_FAN_FREQUENCY
-#else
-  #define PWM_TIMER_FREQUENCY  (50*128) // 50Hz and 7bit resolution
-#endif
-#define MAX_PWM_PINS             32 // Number of PWM pin-slots
-
-#define PULSE_TIMER_RATE         STEPPER_TIMER_RATE   // frequency of pulse timer
-#define PULSE_TIMER_PRESCALE     STEPPER_TIMER_PRESCALE
-#define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US
-
-#define ENABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_enable_interrupt(STEP_TIMER_NUM)
-#define DISABLE_STEPPER_DRIVER_INTERRUPT()  HAL_timer_disable_interrupt(STEP_TIMER_NUM)
-#define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(STEP_TIMER_NUM)
-
-#define ENABLE_TEMPERATURE_INTERRUPT()  HAL_timer_enable_interrupt(TEMP_TIMER_NUM)
-#define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(TEMP_TIMER_NUM)
-
-#ifndef HAL_TEMP_TIMER_ISR
-  #define HAL_TEMP_TIMER_ISR() extern "C" void tempTC_Handler()
-#endif
-#ifndef HAL_STEP_TIMER_ISR
-  #define HAL_STEP_TIMER_ISR() extern "C" void stepTC_Handler()
-#endif
-#ifndef HAL_PWM_TIMER_ISR
-  #define HAL_PWM_TIMER_ISR() extern "C" void pwmTC_Handler()
-#endif
-#ifndef HAL_TONE_TIMER_ISR
-  #define HAL_TONE_TIMER_ISR() extern "C" void toneTC_Handler()
-#endif
-
-extern "C" {
-  void tempTC_Handler();
-  void stepTC_Handler();
-  void pwmTC_Handler();
-  void toneTC_Handler();
-}
-
-// ------------------------
-// Types
-// ------------------------
-
-typedef struct {
-  timer_group_t  group;
-  timer_idx_t    idx;
-  uint32_t       divider;
-  void           (*fn)();
-} tTimerConfig;
-
-// ------------------------
-// Public Variables
-// ------------------------
-
-extern const tTimerConfig TimerConfig[];
-
-// ------------------------
-// Public functions
-// ------------------------
-
-void HAL_timer_start (const uint8_t timer_num, uint32_t frequency);
-void HAL_timer_set_compare(const uint8_t timer_num, const hal_timer_t count);
-hal_timer_t HAL_timer_get_compare(const uint8_t timer_num);
-hal_timer_t HAL_timer_get_count(const uint8_t timer_num);
-
-void HAL_timer_enable_interrupt(const uint8_t timer_num);
-void HAL_timer_disable_interrupt(const uint8_t timer_num);
-bool HAL_timer_interrupt_enabled(const uint8_t timer_num);
-
-#define HAL_timer_isr_prologue(TIMER_NUM)
-#define HAL_timer_isr_epilogue(TIMER_NUM)

Marlin/src/HAL/ESP32/watchdog.cpp

@@ -1,42 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#ifdef ARDUINO_ARCH_ESP32
-
-#include "../../inc/MarlinConfig.h"
-
-#if ENABLED(USE_WATCHDOG)
-
-#define WDT_TIMEOUT_US TERN(WATCHDOG_DURATION_8S, 8000000, 4000000) // 4 or 8 second timeout
-
-#include "watchdog.h"
-
-void watchdogSetup() {
-  // do whatever. don't remove this function.
-}
-
-void watchdog_init() {
-  // TODO
-}
-
-#endif // USE_WATCHDOG
-
-#endif // ARDUINO_ARCH_ESP32

Marlin/src/HAL/ESP32/watchdog.h

@@ -1,38 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-#ifdef __cplusplus
-  extern "C" {
-#endif
-
-    esp_err_t esp_task_wdt_reset();
-
-#ifdef __cplusplus
-  }
-#endif
-
-// Initialize watchdog with a 4 second interrupt time
-void watchdog_init();
-
-// Reset watchdog.
-inline void HAL_watchdog_refresh() { esp_task_wdt_reset(); }

Marlin/src/HAL/HAL.h

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -16,41 +16,17 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 #pragma once
 
 #include "platforms.h"
 
-#ifndef GCC_VERSION
-  #define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
-#endif
-
 #include HAL_PATH(.,HAL.h)
 
-#ifdef SERIAL_PORT_2
-  #define NUM_SERIAL 2
-#else
-  #define NUM_SERIAL 1
-#endif
-
-#define HAL_ADC_RANGE _BV(HAL_ADC_RESOLUTION)
-
-#ifndef I2C_ADDRESS
-  #define I2C_ADDRESS(A) uint8_t(A)
-#endif
-
-// Needed for AVR sprintf_P PROGMEM extension
-#ifndef S_FMT
-  #define S_FMT "%s"
-#endif
-
-// String helper
-#ifndef PGMSTR
-  #define PGMSTR(NAM,STR) const char NAM[] = STR
-#endif
-
 inline void watchdog_refresh() {
-  TERN_(USE_WATCHDOG, HAL_watchdog_refresh());
+  #if ENABLED(USE_WATCHDOG)
+    HAL_watchdog_refresh();
+  #endif
 }

Marlin/src/HAL/HAL_AVR/HAL.cpp

@@ -0,0 +1,79 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifdef __AVR__
+
+#include "../../inc/MarlinConfig.h"
+#include "HAL.h"
+
+// ------------------------
+// Public Variables
+// ------------------------
+
+//uint8_t MCUSR;
+
+// ------------------------
+// Public functions
+// ------------------------
+
+void HAL_init() {
+  // Init Servo Pins
+  #define INIT_SERVO(N) OUT_WRITE(SERVO##N##_PIN, LOW)
+  #if HAS_SERVO_0
+    INIT_SERVO(0);
+  #endif
+  #if HAS_SERVO_1
+    INIT_SERVO(1);
+  #endif
+  #if HAS_SERVO_2
+    INIT_SERVO(2);
+  #endif
+  #if HAS_SERVO_3
+    INIT_SERVO(3);
+  #endif
+}
+
+#if ENABLED(SDSUPPORT)
+
+  #include "../../sd/SdFatUtil.h"
+  int freeMemory() { return SdFatUtil::FreeRam(); }
+
+#else // !SDSUPPORT
+
+extern "C" {
+  extern char __bss_end;
+  extern char __heap_start;
+  extern void* __brkval;
+
+  int freeMemory() {
+    int free_memory;
+    if ((int)__brkval == 0)
+      free_memory = ((int)&free_memory) - ((int)&__bss_end);
+    else
+      free_memory = ((int)&free_memory) - ((int)__brkval);
+    return free_memory;
+  }
+}
+
+#endif // !SDSUPPORT
+
+#endif // __AVR__

Marlin/src/HAL/HAL_AVR/HAL.h

@@ -0,0 +1,401 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include "../shared/Marduino.h"
+#include "../shared/HAL_SPI.h"
+#include "fastio.h"
+#include "watchdog.h"
+#include "math.h"
+
+#ifdef USBCON
+  #include "HardwareSerial.h"
+#else
+  #define HardwareSerial_h // Hack to prevent HardwareSerial.h header inclusion
+  #include "MarlinSerial.h"
+#endif
+
+#include <stdint.h>
+#include <util/delay.h>
+#include <avr/eeprom.h>
+#include <avr/pgmspace.h>
+#include <avr/interrupt.h>
+#include <avr/io.h>
+
+#ifndef pgm_read_ptr
+  // Compatibility for avr-libc 1.8.0-4.1 included with Ubuntu for
+  // Windows Subsystem for Linux on Windows 10 as of 10/18/2019
+  #define pgm_read_ptr_far(address_long) (void*)__ELPM_word((uint32_t)(address_long)) 
+  #define pgm_read_ptr_near(address_short) (void*)__LPM_word((uint16_t)(address_short))
+  #define pgm_read_ptr(address_short) pgm_read_ptr_near(address_short)
+#endif
+
+// ------------------------
+// Defines
+// ------------------------
+
+//#define analogInputToDigitalPin(IO) IO
+
+#ifndef CRITICAL_SECTION_START
+  #define CRITICAL_SECTION_START  unsigned char _sreg = SREG; cli()
+  #define CRITICAL_SECTION_END    SREG = _sreg
+#endif
+#define ISRS_ENABLED() TEST(SREG, SREG_I)
+#define ENABLE_ISRS()  sei()
+#define DISABLE_ISRS() cli()
+
+// On AVR this is in math.h?
+//#define square(x) ((x)*(x))
+
+// ------------------------
+// Types
+// ------------------------
+
+typedef uint16_t hal_timer_t;
+#define HAL_TIMER_TYPE_MAX 0xFFFF
+
+typedef int8_t pin_t;
+
+#define SHARED_SERVOS HAS_SERVOS
+#define HAL_SERVO_LIB Servo
+
+// ------------------------
+// Public Variables
+// ------------------------
+
+//extern uint8_t MCUSR;
+
+// Serial ports
+#ifdef USBCON
+  #if ENABLED(BLUETOOTH)
+    #define MYSERIAL0 bluetoothSerial
+  #else
+    #define MYSERIAL0 Serial
+  #endif
+  #define NUM_SERIAL 1
+#else
+  #if !WITHIN(SERIAL_PORT, -1, 3)
+    #error "SERIAL_PORT must be from -1 to 3"
+  #endif
+
+  #define MYSERIAL0 customizedSerial1
+
+  #ifdef SERIAL_PORT_2
+    #if !WITHIN(SERIAL_PORT_2, -1, 3)
+      #error "SERIAL_PORT_2 must be from -1 to 3"
+    #elif SERIAL_PORT_2 == SERIAL_PORT
+      #error "SERIAL_PORT_2 must be different than SERIAL_PORT"
+    #endif
+    #define NUM_SERIAL 2
+    #define MYSERIAL1 customizedSerial2
+  #else
+    #define NUM_SERIAL 1
+  #endif
+#endif
+
+// ------------------------
+// Public functions
+// ------------------------
+
+void HAL_init();
+
+//void cli();
+
+//void _delay_ms(const int delay);
+
+inline void HAL_clear_reset_source() { MCUSR = 0; }
+inline uint8_t HAL_get_reset_source() { return MCUSR; }
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+extern "C" {
+  int freeMemory();
+}
+#pragma GCC diagnostic pop
+
+// timers
+#define HAL_TIMER_RATE          ((F_CPU) / 8)    // i.e., 2MHz or 2.5MHz
+
+#define STEP_TIMER_NUM          1
+#define TEMP_TIMER_NUM          0
+#define PULSE_TIMER_NUM         STEP_TIMER_NUM
+
+#define TEMP_TIMER_FREQUENCY    ((F_CPU) / 64.0 / 256.0)
+
+#define STEPPER_TIMER_RATE      HAL_TIMER_RATE
+#define STEPPER_TIMER_PRESCALE  8
+#define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000) // Cannot be of type double
+
+#define PULSE_TIMER_RATE       STEPPER_TIMER_RATE   // frequency of pulse timer
+#define PULSE_TIMER_PRESCALE   STEPPER_TIMER_PRESCALE
+#define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US
+
+#define ENABLE_STEPPER_DRIVER_INTERRUPT()  SBI(TIMSK1, OCIE1A)
+#define DISABLE_STEPPER_DRIVER_INTERRUPT() CBI(TIMSK1, OCIE1A)
+#define STEPPER_ISR_ENABLED()             TEST(TIMSK1, OCIE1A)
+
+#define ENABLE_TEMPERATURE_INTERRUPT()     SBI(TIMSK0, OCIE0B)
+#define DISABLE_TEMPERATURE_INTERRUPT()    CBI(TIMSK0, OCIE0B)
+#define TEMPERATURE_ISR_ENABLED()         TEST(TIMSK0, OCIE0B)
+
+FORCE_INLINE void HAL_timer_start(const uint8_t timer_num, const uint32_t) {
+  switch (timer_num) {
+    case STEP_TIMER_NUM:
+      // waveform generation = 0100 = CTC
+      SET_WGM(1, CTC_OCRnA);
+
+      // output mode = 00 (disconnected)
+      SET_COMA(1, NORMAL);
+
+      // Set the timer pre-scaler
+      // Generally we use a divider of 8, resulting in a 2MHz timer
+      // frequency on a 16MHz MCU. If you are going to change this, be
+      // sure to regenerate speed_lookuptable.h with
+      // create_speed_lookuptable.py
+      SET_CS(1, PRESCALER_8);  //  CS 2 = 1/8 prescaler
+
+      // Init Stepper ISR to 122 Hz for quick starting
+      // (F_CPU) / (STEPPER_TIMER_PRESCALE) / frequency
+      OCR1A = 0x4000;
+      TCNT1 = 0;
+      break;
+
+    case TEMP_TIMER_NUM:
+      // Use timer0 for temperature measurement
+      // Interleave temperature interrupt with millies interrupt
+      OCR0B = 128;
+      break;
+  }
+}
+
+#define TIMER_OCR_1             OCR1A
+#define TIMER_COUNTER_1         TCNT1
+
+#define TIMER_OCR_0             OCR0A
+#define TIMER_COUNTER_0         TCNT0
+
+#define _CAT(a,V...) a##V
+#define HAL_timer_set_compare(timer, compare) (_CAT(TIMER_OCR_, timer) = compare)
+#define HAL_timer_get_compare(timer) _CAT(TIMER_OCR_, timer)
+#define HAL_timer_get_count(timer) _CAT(TIMER_COUNTER_, timer)
+
+/**
+ * On AVR there is no hardware prioritization and preemption of
+ * interrupts, so this emulates it. The UART has first priority
+ * (otherwise, characters will be lost due to UART overflow).
+ * Then: Stepper, Endstops, Temperature, and -finally- all others.
+ */
+#define HAL_timer_isr_prologue(TIMER_NUM)
+#define HAL_timer_isr_epilogue(TIMER_NUM)
+
+/* 18 cycles maximum latency */
+#define HAL_STEP_TIMER_ISR() \
+extern "C" void TIMER1_COMPA_vect() __attribute__ ((signal, naked, used, externally_visible)); \
+extern "C" void TIMER1_COMPA_vect_bottom() asm ("TIMER1_COMPA_vect_bottom") __attribute__ ((used, externally_visible, noinline)); \
+void TIMER1_COMPA_vect() { \
+  __asm__ __volatile__ ( \
+    A("push r16")                      /* 2 Save R16 */ \
+    A("in r16, __SREG__")              /* 1 Get SREG */ \
+    A("push r16")                      /* 2 Save SREG into stack */ \
+    A("lds r16, %[timsk0]")            /* 2 Load into R0 the Temperature timer Interrupt mask register */ \
+    A("push r16")                      /* 2 Save TIMSK0 into the stack */ \
+    A("andi r16,~%[msk0]")             /* 1 Disable the temperature ISR */ \
+    A("sts %[timsk0], r16")            /* 2 And set the new value */ \
+    A("lds r16, %[timsk1]")            /* 2 Load into R0 the stepper timer Interrupt mask register [TIMSK1] */ \
+    A("andi r16,~%[msk1]")             /* 1 Disable the stepper ISR */ \
+    A("sts %[timsk1], r16")            /* 2 And set the new value */ \
+    A("push r16")                      /* 2 Save TIMSK1 into stack */ \
+    A("in r16, 0x3B")                  /* 1 Get RAMPZ register */ \
+    A("push r16")                      /* 2 Save RAMPZ into stack */ \
+    A("in r16, 0x3C")                  /* 1 Get EIND register */ \
+    A("push r0")                       /* C runtime can modify all the following registers without restoring them */ \
+    A("push r1")                       \
+    A("push r18")                      \
+    A("push r19")                      \
+    A("push r20")                      \
+    A("push r21")                      \
+    A("push r22")                      \
+    A("push r23")                      \
+    A("push r24")                      \
+    A("push r25")                      \
+    A("push r26")                      \
+    A("push r27")                      \
+    A("push r30")                      \
+    A("push r31")                      \
+    A("clr r1")                        /* C runtime expects this register to be 0 */ \
+    A("call TIMER1_COMPA_vect_bottom") /* Call the bottom handler - No inlining allowed, otherwise registers used are not saved */   \
+    A("pop r31")                       \
+    A("pop r30")                       \
+    A("pop r27")                       \
+    A("pop r26")                       \
+    A("pop r25")                       \
+    A("pop r24")                       \
+    A("pop r23")                       \
+    A("pop r22")                       \
+    A("pop r21")                       \
+    A("pop r20")                       \
+    A("pop r19")                       \
+    A("pop r18")                       \
+    A("pop r1")                        \
+    A("pop r0")                        \
+    A("out 0x3C, r16")                 /* 1 Restore EIND register */ \
+    A("pop r16")                       /* 2 Get the original RAMPZ register value */ \
+    A("out 0x3B, r16")                 /* 1 Restore RAMPZ register to its original value */ \
+    A("pop r16")                       /* 2 Get the original TIMSK1 value but with stepper ISR disabled */ \
+    A("ori r16,%[msk1]")               /* 1 Reenable the stepper ISR */ \
+    A("cli")                           /* 1 Disable global interrupts - Reenabling Stepper ISR can reenter amd temperature can reenter, and we want that, if it happens, after this ISR has ended */ \
+    A("sts %[timsk1], r16")            /* 2 And restore the old value - This reenables the stepper ISR */ \
+    A("pop r16")                       /* 2 Get the temperature timer Interrupt mask register [TIMSK0] */ \
+    A("sts %[timsk0], r16")            /* 2 And restore the old value - This reenables the temperature ISR */ \
+    A("pop r16")                       /* 2 Get the old SREG value */ \
+    A("out __SREG__, r16")             /* 1 And restore the SREG value */ \
+    A("pop r16")                       /* 2 Restore R16 value */ \
+    A("reti")                          /* 4 Return from interrupt */ \
+    :                                   \
+    : [timsk0] "i" ((uint16_t)&TIMSK0), \
+      [timsk1] "i" ((uint16_t)&TIMSK1), \
+      [msk0] "M" ((uint8_t)(1<<OCIE0B)),\
+      [msk1] "M" ((uint8_t)(1<<OCIE1A)) \
+    : \
+  ); \
+} \
+void TIMER1_COMPA_vect_bottom()
+
+/* 14 cycles maximum latency */
+#define HAL_TEMP_TIMER_ISR() \
+extern "C" void TIMER0_COMPB_vect() __attribute__ ((signal, naked, used, externally_visible)); \
+extern "C" void TIMER0_COMPB_vect_bottom()  asm ("TIMER0_COMPB_vect_bottom") __attribute__ ((used, externally_visible, noinline)); \
+void TIMER0_COMPB_vect() { \
+  __asm__ __volatile__ ( \
+    A("push r16")                       /* 2 Save R16 */ \
+    A("in r16, __SREG__")               /* 1 Get SREG */ \
+    A("push r16")                       /* 2 Save SREG into stack */ \
+    A("lds r16, %[timsk0]")             /* 2 Load into R0 the Temperature timer Interrupt mask register */ \
+    A("andi r16,~%[msk0]")              /* 1 Disable the temperature ISR */ \
+    A("sts %[timsk0], r16")             /* 2 And set the new value */ \
+    A("sei")                            /* 1 Enable global interrupts - It is safe, as the temperature ISR is disabled, so we cannot reenter it */    \
+    A("push r16")                       /* 2 Save TIMSK0 into stack */ \
+    A("in r16, 0x3B")                   /* 1 Get RAMPZ register */ \
+    A("push r16")                       /* 2 Save RAMPZ into stack */ \
+    A("in r16, 0x3C")                   /* 1 Get EIND register */ \
+    A("push r0")                        /* C runtime can modify all the following registers without restoring them */ \
+    A("push r1")                        \
+    A("push r18")                       \
+    A("push r19")                       \
+    A("push r20")                       \
+    A("push r21")                       \
+    A("push r22")                       \
+    A("push r23")                       \
+    A("push r24")                       \
+    A("push r25")                       \
+    A("push r26")                       \
+    A("push r27")                       \
+    A("push r30")                       \
+    A("push r31")                       \
+    A("clr r1")                         /* C runtime expects this register to be 0 */ \
+    A("call TIMER0_COMPB_vect_bottom")  /* Call the bottom handler - No inlining allowed, otherwise registers used are not saved */   \
+    A("pop r31")                        \
+    A("pop r30")                        \
+    A("pop r27")                        \
+    A("pop r26")                        \
+    A("pop r25")                        \
+    A("pop r24")                        \
+    A("pop r23")                        \
+    A("pop r22")                        \
+    A("pop r21")                        \
+    A("pop r20")                        \
+    A("pop r19")                        \
+    A("pop r18")                        \
+    A("pop r1")                         \
+    A("pop r0")                         \
+    A("out 0x3C, r16")                  /* 1 Restore EIND register */ \
+    A("pop r16")                        /* 2 Get the original RAMPZ register value */ \
+    A("out 0x3B, r16")                  /* 1 Restore RAMPZ register to its original value */ \
+    A("pop r16")                        /* 2 Get the original TIMSK0 value but with temperature ISR disabled */ \
+    A("ori r16,%[msk0]")                /* 1 Enable temperature ISR */ \
+    A("cli")                            /* 1 Disable global interrupts - We must do this, as we will reenable the temperature ISR, and we don't want to reenter this handler until the current one is done */ \
+    A("sts %[timsk0], r16")             /* 2 And restore the old value */ \
+    A("pop r16")                        /* 2 Get the old SREG */ \
+    A("out __SREG__, r16")              /* 1 And restore the SREG value */ \
+    A("pop r16")                        /* 2 Restore R16 */ \
+    A("reti")                           /* 4 Return from interrupt */ \
+    :                                   \
+    : [timsk0] "i"((uint16_t)&TIMSK0),  \
+      [msk0] "M" ((uint8_t)(1<<OCIE0B)) \
+    : \
+  ); \
+} \
+void TIMER0_COMPB_vect_bottom()
+
+// ADC
+#ifdef DIDR2
+  #define HAL_ANALOG_SELECT(pin) do{ if (pin < 8) SBI(DIDR0, pin); else SBI(DIDR2, pin & 0x07); }while(0)
+#else
+  #define HAL_ANALOG_SELECT(pin) do{ SBI(DIDR0, pin); }while(0)
+#endif
+
+inline void HAL_adc_init() {
+  ADCSRA = _BV(ADEN) | _BV(ADSC) | _BV(ADIF) | 0x07;
+  DIDR0 = 0;
+  #ifdef DIDR2
+    DIDR2 = 0;
+  #endif
+}
+
+#define SET_ADMUX_ADCSRA(pin) ADMUX = _BV(REFS0) | (pin & 0x07); SBI(ADCSRA, ADSC)
+#ifdef MUX5
+  #define HAL_START_ADC(pin) if (pin > 7) ADCSRB = _BV(MUX5); else ADCSRB = 0; SET_ADMUX_ADCSRA(pin)
+#else
+  #define HAL_START_ADC(pin) ADCSRB = 0; SET_ADMUX_ADCSRA(pin)
+#endif
+
+#define HAL_READ_ADC()  ADC
+#define HAL_ADC_READY() !TEST(ADCSRA, ADSC)
+
+#define GET_PIN_MAP_PIN(index) index
+#define GET_PIN_MAP_INDEX(pin) pin
+#define PARSED_PIN_INDEX(code, dval) parser.intval(code, dval)
+
+#define HAL_SENSITIVE_PINS 0, 1
+
+#ifdef __AVR_AT90USB1286__
+  #define JTAG_DISABLE() do{ MCUCR = 0x80; MCUCR = 0x80; }while(0)
+#endif
+
+// AVR compatibility
+#define strtof strtod
+
+/**
+ *  set_pwm_frequency
+ *  Sets the frequency of the timer corresponding to the provided pin
+ *  as close as possible to the provided desired frequency. Internally
+ *  calculates the required waveform generation mode, prescaler and
+ *  resolution values required and sets the timer registers accordingly.
+ *  NOTE that the frequency is applied to all pins on the timer (Ex OC3A, OC3B and OC3B)
+ *  NOTE that there are limitations, particularly if using TIMER2. (see Configuration_adv.h -> FAST FAN PWM Settings)
+ */
+void set_pwm_frequency(const pin_t pin, int f_desired);
+
+/**
+ * set_pwm_duty
+ *  Sets the PWM duty cycle of the provided pin to the provided value
+ *  Optionally allows inverting the duty cycle [default = false]
+ *  Optionally allows changing the maximum size of the provided value to enable finer PWM duty control [default = 255]
+ */
+void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size=255, const bool invert=false);

Marlin/src/HAL/HAL_AVR/HAL_SPI.cpp

@@ -0,0 +1,253 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Adapted from Arduino Sd2Card Library
+ * Copyright (c) 2009 by William Greiman
+ */
+
+/**
+ * HAL for AVR - SPI functions
+ */
+
+#ifdef __AVR__
+
+#include "../../inc/MarlinConfig.h"
+
+void spiBegin() {
+  OUT_WRITE(SS_PIN, HIGH);
+  SET_OUTPUT(SCK_PIN);
+  SET_INPUT(MISO_PIN);
+  SET_OUTPUT(MOSI_PIN);
+
+  #if DISABLED(SOFTWARE_SPI)
+    // SS must be in output mode even it is not chip select
+    //SET_OUTPUT(SS_PIN);
+    // set SS high - may be chip select for another SPI device
+    //#if SET_SPI_SS_HIGH
+      //WRITE(SS_PIN, HIGH);
+    //#endif
+    // set a default rate
+    spiInit(1);
+  #endif
+}
+
+#if NONE(SOFTWARE_SPI, FORCE_SOFT_SPI)
+
+  // ------------------------
+  // Hardware SPI
+  // ------------------------
+
+  // make sure SPCR rate is in expected bits
+  #if (SPR0 != 0 || SPR1 != 1)
+    #error "unexpected SPCR bits"
+  #endif
+
+  /**
+   * Initialize hardware SPI
+   * Set SCK rate to F_CPU/pow(2, 1 + spiRate) for spiRate [0,6]
+   */
+  void spiInit(uint8_t spiRate) {
+    // See avr processor documentation
+    CBI(
+      #ifdef PRR
+        PRR
+      #elif defined(PRR0)
+        PRR0
+      #endif
+        , PRSPI);
+
+    SPCR = _BV(SPE) | _BV(MSTR) | (spiRate >> 1);
+    SPSR = spiRate & 1 || spiRate == 6 ? 0 : _BV(SPI2X);
+  }
+
+  /** SPI receive a byte */
+  uint8_t spiRec() {
+    SPDR = 0xFF;
+    while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
+    return SPDR;
+  }
+
+  /** SPI read data  */
+  void spiRead(uint8_t* buf, uint16_t nbyte) {
+    if (nbyte-- == 0) return;
+    SPDR = 0xFF;
+    for (uint16_t i = 0; i < nbyte; i++) {
+      while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
+      buf[i] = SPDR;
+      SPDR = 0xFF;
+    }
+    while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
+    buf[nbyte] = SPDR;
+  }
+
+  /** SPI send a byte */
+  void spiSend(uint8_t b) {
+    SPDR = b;
+    while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
+  }
+
+  /** SPI send block  */
+  void spiSendBlock(uint8_t token, const uint8_t* buf) {
+    SPDR = token;
+    for (uint16_t i = 0; i < 512; i += 2) {
+      while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
+      SPDR = buf[i];
+      while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
+      SPDR = buf[i + 1];
+    }
+    while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
+  }
+
+
+  /** begin spi transaction */
+  void spiBeginTransaction(uint32_t spiClock, uint8_t bitOrder, uint8_t dataMode) {
+    // Based on Arduino SPI library
+    // Clock settings are defined as follows. Note that this shows SPI2X
+    // inverted, so the bits form increasing numbers. Also note that
+    // fosc/64 appears twice
+    // SPR1 SPR0 ~SPI2X Freq
+    //   0    0     0   fosc/2
+    //   0    0     1   fosc/4
+    //   0    1     0   fosc/8
+    //   0    1     1   fosc/16
+    //   1    0     0   fosc/32
+    //   1    0     1   fosc/64
+    //   1    1     0   fosc/64
+    //   1    1     1   fosc/128
+
+    // We find the fastest clock that is less than or equal to the
+    // given clock rate. The clock divider that results in clock_setting
+    // is 2 ^^ (clock_div + 1). If nothing is slow enough, we'll use the
+    // slowest (128 == 2 ^^ 7, so clock_div = 6).
+    uint8_t clockDiv;
+
+    // When the clock is known at compiletime, use this if-then-else
+    // cascade, which the compiler knows how to completely optimize
+    // away. When clock is not known, use a loop instead, which generates
+    // shorter code.
+    if (__builtin_constant_p(spiClock)) {
+      if (spiClock >= F_CPU / 2)       clockDiv = 0;
+      else if (spiClock >= F_CPU / 4)  clockDiv = 1;
+      else if (spiClock >= F_CPU / 8)  clockDiv = 2;
+      else if (spiClock >= F_CPU / 16) clockDiv = 3;
+      else if (spiClock >= F_CPU / 32) clockDiv = 4;
+      else if (spiClock >= F_CPU / 64) clockDiv = 5;
+      else                             clockDiv = 6;
+    }
+    else {
+      uint32_t clockSetting = F_CPU / 2;
+      clockDiv = 0;
+      while (clockDiv < 6 && spiClock < clockSetting) {
+        clockSetting /= 2;
+        clockDiv++;
+      }
+    }
+
+    // Compensate for the duplicate fosc/64
+    if (clockDiv == 6) clockDiv = 7;
+
+    // Invert the SPI2X bit
+    clockDiv ^= 0x1;
+
+    SPCR = _BV(SPE) | _BV(MSTR) | ((bitOrder == LSBFIRST) ? _BV(DORD) : 0) |
+      (dataMode << CPHA) | ((clockDiv >> 1) << SPR0);
+    SPSR = clockDiv | 0x01;
+  }
+
+
+#else // SOFTWARE_SPI || FORCE_SOFT_SPI
+
+  // ------------------------
+  // Software SPI
+  // ------------------------
+
+  // nop to tune soft SPI timing
+  #define nop asm volatile ("\tnop\n")
+
+  void spiInit(uint8_t) { /* do nothing */ }
+
+  // Begin SPI transaction, set clock, bit order, data mode
+  void spiBeginTransaction(uint32_t spiClock, uint8_t bitOrder, uint8_t dataMode) { /* do nothing */ }
+
+  // Soft SPI receive byte
+  uint8_t spiRec() {
+    uint8_t data = 0;
+    // no interrupts during byte receive - about 8µs
+    cli();
+    // output pin high - like sending 0xFF
+    WRITE(MOSI_PIN, HIGH);
+
+    for (uint8_t i = 0; i < 8; i++) {
+      WRITE(SCK_PIN, HIGH);
+
+      nop; // adjust so SCK is nice
+      nop;
+
+      data <<= 1;
+
+      if (READ(MISO_PIN)) data |= 1;
+
+      WRITE(SCK_PIN, LOW);
+    }
+
+    sei();
+    return data;
+  }
+
+  // Soft SPI read data
+  void spiRead(uint8_t* buf, uint16_t nbyte) {
+    for (uint16_t i = 0; i < nbyte; i++)
+      buf[i] = spiRec();
+  }
+
+  // Soft SPI send byte
+  void spiSend(uint8_t data) {
+    // no interrupts during byte send - about 8µs
+    cli();
+    for (uint8_t i = 0; i < 8; i++) {
+      WRITE(SCK_PIN, LOW);
+      WRITE(MOSI_PIN, data & 0x80);
+      data <<= 1;
+      WRITE(SCK_PIN, HIGH);
+    }
+
+    nop; // hold SCK high for a few ns
+    nop;
+    nop;
+    nop;
+
+    WRITE(SCK_PIN, LOW);
+
+    sei();
+  }
+
+  // Soft SPI send block
+  void spiSendBlock(uint8_t token, const uint8_t* buf) {
+    spiSend(token);
+    for (uint16_t i = 0; i < 512; i++)
+      spiSend(buf[i]);
+  }
+
+#endif // SOFTWARE_SPI || FORCE_SOFT_SPI
+
+#endif // __AVR__

Marlin/src/HAL/HAL_AVR/MarlinSerial.cpp

@@ -0,0 +1,765 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * MarlinSerial.cpp - Hardware serial library for Wiring
+ * Copyright (c) 2006 Nicholas Zambetti.  All right reserved.
+ *
+ * Modified 23 November 2006 by David A. Mellis
+ * Modified 28 September 2010 by Mark Sproul
+ * Modified 14 February 2016 by Andreas Hardtung (added tx buffer)
+ * Modified 01 October 2017 by Eduardo José Tagle (added XON/XOFF)
+ * Modified 10 June 2018 by Eduardo José Tagle (See #10991)
+ * Templatized 01 October 2018 by Eduardo José Tagle to allow multiple instances
+ */
+
+#ifdef __AVR__
+
+// Disable HardwareSerial.cpp to support chips without a UART (Attiny, etc.)
+
+#include "../../inc/MarlinConfig.h"
+
+#if !defined(USBCON) && (defined(UBRRH) || defined(UBRR0H) || defined(UBRR1H) || defined(UBRR2H) || defined(UBRR3H))
+
+  #include "MarlinSerial.h"
+  #include "../../Marlin.h"
+
+  template<typename Cfg> typename MarlinSerial<Cfg>::ring_buffer_r MarlinSerial<Cfg>::rx_buffer = { 0, 0, { 0 } };
+  template<typename Cfg> typename MarlinSerial<Cfg>::ring_buffer_t MarlinSerial<Cfg>::tx_buffer = { 0 };
+  template<typename Cfg> bool     MarlinSerial<Cfg>::_written = false;
+  template<typename Cfg> uint8_t  MarlinSerial<Cfg>::xon_xoff_state = MarlinSerial<Cfg>::XON_XOFF_CHAR_SENT | MarlinSerial<Cfg>::XON_CHAR;
+  template<typename Cfg> uint8_t  MarlinSerial<Cfg>::rx_dropped_bytes = 0;
+  template<typename Cfg> uint8_t  MarlinSerial<Cfg>::rx_buffer_overruns = 0;
+  template<typename Cfg> uint8_t  MarlinSerial<Cfg>::rx_framing_errors = 0;
+  template<typename Cfg> typename MarlinSerial<Cfg>::ring_buffer_pos_t MarlinSerial<Cfg>::rx_max_enqueued = 0;
+
+  // A SW memory barrier, to ensure GCC does not overoptimize loops
+  #define sw_barrier() asm volatile("": : :"memory");
+
+  #include "../../feature/emergency_parser.h"
+
+  // "Atomically" read the RX head index value without disabling interrupts:
+  // This MUST be called with RX interrupts enabled, and CAN'T be called
+  // from the RX ISR itself!
+  template<typename Cfg>
+  FORCE_INLINE typename MarlinSerial<Cfg>::ring_buffer_pos_t MarlinSerial<Cfg>::atomic_read_rx_head() {
+    if (Cfg::RX_SIZE > 256) {
+      // Keep reading until 2 consecutive reads return the same value,
+      // meaning there was no update in-between caused by an interrupt.
+      // This works because serial RX interrupts happen at a slower rate
+      // than successive reads of a variable, so 2 consecutive reads with
+      // the same value means no interrupt updated it.
+      ring_buffer_pos_t vold, vnew = rx_buffer.head;
+      sw_barrier();
+      do {
+        vold = vnew;
+        vnew = rx_buffer.head;
+        sw_barrier();
+      } while (vold != vnew);
+      return vnew;
+    }
+    else {
+      // With an 8bit index, reads are always atomic. No need for special handling
+      return rx_buffer.head;
+    }
+  }
+
+  template<typename Cfg>
+  volatile bool MarlinSerial<Cfg>::rx_tail_value_not_stable = false;
+  template<typename Cfg>
+  volatile uint16_t MarlinSerial<Cfg>::rx_tail_value_backup = 0;
+
+  // Set RX tail index, taking into account the RX ISR could interrupt
+  //  the write to this variable in the middle - So a backup strategy
+  //  is used to ensure reads of the correct values.
+  //    -Must NOT be called from the RX ISR -
+  template<typename Cfg>
+  FORCE_INLINE void MarlinSerial<Cfg>::atomic_set_rx_tail(typename MarlinSerial<Cfg>::ring_buffer_pos_t value) {
+    if (Cfg::RX_SIZE > 256) {
+      // Store the new value in the backup
+      rx_tail_value_backup = value;
+      sw_barrier();
+      // Flag we are about to change the true value
+      rx_tail_value_not_stable = true;
+      sw_barrier();
+      // Store the new value
+      rx_buffer.tail = value;
+      sw_barrier();
+      // Signal the new value is completely stored into the value
+      rx_tail_value_not_stable = false;
+      sw_barrier();
+    }
+    else
+      rx_buffer.tail = value;
+  }
+
+  // Get the RX tail index, taking into account the read could be
+  //  interrupting in the middle of the update of that index value
+  //    -Called from the RX ISR -
+  template<typename Cfg>
+  FORCE_INLINE typename MarlinSerial<Cfg>::ring_buffer_pos_t MarlinSerial<Cfg>::atomic_read_rx_tail() {
+    if (Cfg::RX_SIZE > 256) {
+      // If the true index is being modified, return the backup value
+      if (rx_tail_value_not_stable) return rx_tail_value_backup;
+    }
+    // The true index is stable, return it
+    return rx_buffer.tail;
+  }
+
+  // (called with RX interrupts disabled)
+  template<typename Cfg>
+  FORCE_INLINE void MarlinSerial<Cfg>::store_rxd_char() {
+
+    static EmergencyParser::State emergency_state; // = EP_RESET
+
+    // Get the tail - Nothing can alter its value while this ISR is executing, but there's
+    // a chance that this ISR interrupted the main process while it was updating the index.
+    // The backup mechanism ensures the correct value is always returned.
+    const ring_buffer_pos_t t = atomic_read_rx_tail();
+
+    // Get the head pointer - This ISR is the only one that modifies its value, so it's safe to read here
+    ring_buffer_pos_t h = rx_buffer.head;
+
+    // Get the next element
+    ring_buffer_pos_t i = (ring_buffer_pos_t)(h + 1) & (ring_buffer_pos_t)(Cfg::RX_SIZE - 1);
+
+    // This must read the R_UCSRA register before reading the received byte to detect error causes
+    if (Cfg::DROPPED_RX && B_DOR && !++rx_dropped_bytes) --rx_dropped_bytes;
+    if (Cfg::RX_OVERRUNS && B_DOR && !++rx_buffer_overruns) --rx_buffer_overruns;
+    if (Cfg::RX_FRAMING_ERRORS && B_FE && !++rx_framing_errors) --rx_framing_errors;
+
+    // Read the character from the USART
+    uint8_t c = R_UDR;
+
+    if (Cfg::EMERGENCYPARSER) emergency_parser.update(emergency_state, c);
+
+    // If the character is to be stored at the index just before the tail
+    // (such that the head would advance to the current tail), the RX FIFO is
+    // full, so don't write the character or advance the head.
+    if (i != t) {
+      rx_buffer.buffer[h] = c;
+      h = i;
+    }
+    else if (Cfg::DROPPED_RX && !++rx_dropped_bytes)
+      --rx_dropped_bytes;
+
+    if (Cfg::MAX_RX_QUEUED) {
+      // Calculate count of bytes stored into the RX buffer
+      const ring_buffer_pos_t rx_count = (ring_buffer_pos_t)(h - t) & (ring_buffer_pos_t)(Cfg::RX_SIZE - 1);
+
+      // Keep track of the maximum count of enqueued bytes
+      NOLESS(rx_max_enqueued, rx_count);
+    }
+
+    if (Cfg::XONOFF) {
+      // If the last char that was sent was an XON
+      if ((xon_xoff_state & XON_XOFF_CHAR_MASK) == XON_CHAR) {
+
+        // Bytes stored into the RX buffer
+        const ring_buffer_pos_t rx_count = (ring_buffer_pos_t)(h - t) & (ring_buffer_pos_t)(Cfg::RX_SIZE - 1);
+
+        // If over 12.5% of RX buffer capacity, send XOFF before running out of
+        // RX buffer space .. 325 bytes @ 250kbits/s needed to let the host react
+        // and stop sending bytes. This translates to 13mS propagation time.
+        if (rx_count >= (Cfg::RX_SIZE) / 8) {
+
+          // At this point, definitely no TX interrupt was executing, since the TX ISR can't be preempted.
+          // Don't enable the TX interrupt here as a means to trigger the XOFF char, because if it happens
+          // to be in the middle of trying to disable the RX interrupt in the main program, eventually the
+          // enabling of the TX interrupt could be undone. The ONLY reliable thing this can do to ensure
+          // the sending of the XOFF char is to send it HERE AND NOW.
+
+          // About to send the XOFF char
+          xon_xoff_state = XOFF_CHAR | XON_XOFF_CHAR_SENT;
+
+          // Wait until the TX register becomes empty and send it - Here there could be a problem
+          // - While waiting for the TX register to empty, the RX register could receive a new
+          //   character. This must also handle that situation!
+          while (!B_UDRE) {
+
+            if (B_RXC) {
+              // A char arrived while waiting for the TX buffer to be empty - Receive and process it!
+
+              i = (ring_buffer_pos_t)(h + 1) & (ring_buffer_pos_t)(Cfg::RX_SIZE - 1);
+
+              // Read the character from the USART
+              c = R_UDR;
+
+              if (Cfg::EMERGENCYPARSER) emergency_parser.update(emergency_state, c);
+
+              // If the character is to be stored at the index just before the tail
+              // (such that the head would advance to the current tail), the FIFO is
+              // full, so don't write the character or advance the head.
+              if (i != t) {
+                rx_buffer.buffer[h] = c;
+                h = i;
+              }
+              else if (Cfg::DROPPED_RX && !++rx_dropped_bytes)
+                --rx_dropped_bytes;
+            }
+            sw_barrier();
+          }
+
+          R_UDR = XOFF_CHAR;
+
+          // Clear the TXC bit -- "can be cleared by writing a one to its bit
+          // location". This makes sure flush() won't return until the bytes
+          // actually got written
+          B_TXC = 1;
+
+          // At this point there could be a race condition between the write() function
+          // and this sending of the XOFF char. This interrupt could happen between the
+          // wait to be empty TX buffer loop and the actual write of the character. Since
+          // the TX buffer is full because it's sending the XOFF char, the only way to be
+          // sure the write() function will succeed is to wait for the XOFF char to be
+          // completely sent. Since an extra character could be received during the wait
+          // it must also be handled!
+          while (!B_UDRE) {
+
+            if (B_RXC) {
+              // A char arrived while waiting for the TX buffer to be empty - Receive and process it!
+
+              i = (ring_buffer_pos_t)(h + 1) & (ring_buffer_pos_t)(Cfg::RX_SIZE - 1);
+
+              // Read the character from the USART
+              c = R_UDR;
+
+              if (Cfg::EMERGENCYPARSER)
+                emergency_parser.update(emergency_state, c);
+
+              // If the character is to be stored at the index just before the tail
+              // (such that the head would advance to the current tail), the FIFO is
+              // full, so don't write the character or advance the head.
+              if (i != t) {
+                rx_buffer.buffer[h] = c;
+                h = i;
+              }
+              else if (Cfg::DROPPED_RX && !++rx_dropped_bytes)
+                --rx_dropped_bytes;
+            }
+            sw_barrier();
+          }
+
+          // At this point everything is ready. The write() function won't
+          // have any issues writing to the UART TX register if it needs to!
+        }
+      }
+    }
+
+    // Store the new head value - The main loop will retry until the value is stable
+    rx_buffer.head = h;
+  }
+
+  // (called with TX irqs disabled)
+  template<typename Cfg>
+  FORCE_INLINE void MarlinSerial<Cfg>::_tx_udr_empty_irq() {
+    if (Cfg::TX_SIZE > 0) {
+      // Read positions
+      uint8_t t = tx_buffer.tail;
+      const uint8_t h = tx_buffer.head;
+
+      if (Cfg::XONOFF) {
+        // If an XON char is pending to be sent, do it now
+        if (xon_xoff_state == XON_CHAR) {
+
+          // Send the character
+          R_UDR = XON_CHAR;
+
+          // clear the TXC bit -- "can be cleared by writing a one to its bit
+          // location". This makes sure flush() won't return until the bytes
+          // actually got written
+          B_TXC = 1;
+
+          // Remember we sent it.
+          xon_xoff_state = XON_CHAR | XON_XOFF_CHAR_SENT;
+
+          // If nothing else to transmit, just disable TX interrupts.
+          if (h == t) B_UDRIE = 0; // (Non-atomic, could be reenabled by the main program, but eventually this will succeed)
+
+          return;
+        }
+      }
+
+      // If nothing to transmit, just disable TX interrupts. This could
+      // happen as the result of the non atomicity of the disabling of RX
+      // interrupts that could end reenabling TX interrupts as a side effect.
+      if (h == t) {
+        B_UDRIE = 0; // (Non-atomic, could be reenabled by the main program, but eventually this will succeed)
+        return;
+      }
+
+      // There is something to TX, Send the next byte
+      const uint8_t c = tx_buffer.buffer[t];
+      t = (t + 1) & (Cfg::TX_SIZE - 1);
+      R_UDR = c;
+      tx_buffer.tail = t;
+
+      // Clear the TXC bit (by writing a one to its bit location).
+      // Ensures flush() won't return until the bytes are actually written/
+      B_TXC = 1;
+
+      // Disable interrupts if there is nothing to transmit following this byte
+      if (h == t) B_UDRIE = 0; // (Non-atomic, could be reenabled by the main program, but eventually this will succeed)
+    }
+  }
+
+  // Public Methods
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::begin(const long baud) {
+    uint16_t baud_setting;
+    bool useU2X = true;
+
+    #if F_CPU == 16000000UL && SERIAL_PORT == 0
+      // Hard-coded exception for compatibility with the bootloader shipped
+      // with the Duemilanove and previous boards, and the firmware on the
+      // 8U2 on the Uno and Mega 2560.
+      if (baud == 57600) useU2X = false;
+    #endif
+
+    R_UCSRA = 0;
+    if (useU2X) {
+      B_U2X = 1;
+      baud_setting = (F_CPU / 4 / baud - 1) / 2;
+    }
+    else
+      baud_setting = (F_CPU / 8 / baud - 1) / 2;
+
+    // assign the baud_setting, a.k.a. ubbr (USART Baud Rate Register)
+    R_UBRRH = baud_setting >> 8;
+    R_UBRRL = baud_setting;
+
+    B_RXEN = 1;
+    B_TXEN = 1;
+    B_RXCIE = 1;
+    if (Cfg::TX_SIZE > 0) B_UDRIE = 0;
+    _written = false;
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::end() {
+    B_RXEN = 0;
+    B_TXEN = 0;
+    B_RXCIE = 0;
+    B_UDRIE = 0;
+  }
+
+  template<typename Cfg>
+  int MarlinSerial<Cfg>::peek() {
+    const ring_buffer_pos_t h = atomic_read_rx_head(), t = rx_buffer.tail;
+    return h == t ? -1 : rx_buffer.buffer[t];
+  }
+
+  template<typename Cfg>
+  int MarlinSerial<Cfg>::read() {
+    const ring_buffer_pos_t h = atomic_read_rx_head();
+
+    // Read the tail. Main thread owns it, so it is safe to directly read it
+    ring_buffer_pos_t t = rx_buffer.tail;
+
+    // If nothing to read, return now
+    if (h == t) return -1;
+
+    // Get the next char
+    const int v = rx_buffer.buffer[t];
+    t = (ring_buffer_pos_t)(t + 1) & (Cfg::RX_SIZE - 1);
+
+    // Advance tail - Making sure the RX ISR will always get an stable value, even
+    // if it interrupts the writing of the value of that variable in the middle.
+    atomic_set_rx_tail(t);
+
+    if (Cfg::XONOFF) {
+      // If the XOFF char was sent, or about to be sent...
+      if ((xon_xoff_state & XON_XOFF_CHAR_MASK) == XOFF_CHAR) {
+        // Get count of bytes in the RX buffer
+        const ring_buffer_pos_t rx_count = (ring_buffer_pos_t)(h - t) & (ring_buffer_pos_t)(Cfg::RX_SIZE - 1);
+        if (rx_count < (Cfg::RX_SIZE) / 10) {
+          if (Cfg::TX_SIZE > 0) {
+            // Signal we want an XON character to be sent.
+            xon_xoff_state = XON_CHAR;
+            // Enable TX ISR. Non atomic, but it will eventually enable them
+            B_UDRIE = 1;
+          }
+          else {
+            // If not using TX interrupts, we must send the XON char now
+            xon_xoff_state = XON_CHAR | XON_XOFF_CHAR_SENT;
+            while (!B_UDRE) sw_barrier();
+            R_UDR = XON_CHAR;
+          }
+        }
+      }
+    }
+
+    return v;
+  }
+
+  template<typename Cfg>
+  typename MarlinSerial<Cfg>::ring_buffer_pos_t MarlinSerial<Cfg>::available() {
+    const ring_buffer_pos_t h = atomic_read_rx_head(), t = rx_buffer.tail;
+    return (ring_buffer_pos_t)(Cfg::RX_SIZE + h - t) & (Cfg::RX_SIZE - 1);
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::flush() {
+
+    // Set the tail to the head:
+    //  - Read the RX head index in a safe way. (See atomic_read_rx_head.)
+    //  - Set the tail, making sure the RX ISR will always get a stable value, even
+    //    if it interrupts the writing of the value of that variable in the middle.
+    atomic_set_rx_tail(atomic_read_rx_head());
+
+    if (Cfg::XONOFF) {
+      // If the XOFF char was sent, or about to be sent...
+      if ((xon_xoff_state & XON_XOFF_CHAR_MASK) == XOFF_CHAR) {
+        if (Cfg::TX_SIZE > 0) {
+          // Signal we want an XON character to be sent.
+          xon_xoff_state = XON_CHAR;
+          // Enable TX ISR. Non atomic, but it will eventually enable it.
+          B_UDRIE = 1;
+        }
+        else {
+          // If not using TX interrupts, we must send the XON char now
+          xon_xoff_state = XON_CHAR | XON_XOFF_CHAR_SENT;
+          while (!B_UDRE) sw_barrier();
+          R_UDR = XON_CHAR;
+        }
+      }
+    }
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::write(const uint8_t c) {
+    if (Cfg::TX_SIZE == 0) {
+
+      _written = true;
+      while (!B_UDRE) sw_barrier();
+      R_UDR = c;
+
+    }
+    else {
+
+      _written = true;
+
+      // If the TX interrupts are disabled and the data register
+      // is empty, just write the byte to the data register and
+      // be done. This shortcut helps significantly improve the
+      // effective datarate at high (>500kbit/s) bitrates, where
+      // interrupt overhead becomes a slowdown.
+      // Yes, there is a race condition between the sending of the
+      // XOFF char at the RX ISR, but it is properly handled there
+      if (!B_UDRIE && B_UDRE) {
+        R_UDR = c;
+
+        // clear the TXC bit -- "can be cleared by writing a one to its bit
+        // location". This makes sure flush() won't return until the bytes
+        // actually got written
+        B_TXC = 1;
+        return;
+      }
+
+      const uint8_t i = (tx_buffer.head + 1) & (Cfg::TX_SIZE - 1);
+
+      // If global interrupts are disabled (as the result of being called from an ISR)...
+      if (!ISRS_ENABLED()) {
+
+        // Make room by polling if it is possible to transmit, and do so!
+        while (i == tx_buffer.tail) {
+
+          // If we can transmit another byte, do it.
+          if (B_UDRE) _tx_udr_empty_irq();
+
+          // Make sure compiler rereads tx_buffer.tail
+          sw_barrier();
+        }
+      }
+      else {
+        // Interrupts are enabled, just wait until there is space
+        while (i == tx_buffer.tail) sw_barrier();
+      }
+
+      // Store new char. head is always safe to move
+      tx_buffer.buffer[tx_buffer.head] = c;
+      tx_buffer.head = i;
+
+      // Enable TX ISR - Non atomic, but it will eventually enable TX ISR
+      B_UDRIE = 1;
+    }
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::flushTX() {
+
+    if (Cfg::TX_SIZE == 0) {
+      // No bytes written, no need to flush. This special case is needed since there's
+      // no way to force the TXC (transmit complete) bit to 1 during initialization.
+      if (!_written) return;
+
+      // Wait until everything was transmitted
+      while (!B_TXC) sw_barrier();
+
+      // At this point nothing is queued anymore (DRIE is disabled) and
+      // the hardware finished transmission (TXC is set).
+
+    }
+    else {
+
+      // No bytes written, no need to flush. This special case is needed since there's
+      // no way to force the TXC (transmit complete) bit to 1 during initialization.
+      if (!_written) return;
+
+      // If global interrupts are disabled (as the result of being called from an ISR)...
+      if (!ISRS_ENABLED()) {
+
+        // Wait until everything was transmitted - We must do polling, as interrupts are disabled
+        while (tx_buffer.head != tx_buffer.tail || !B_TXC) {
+
+          // If there is more space, send an extra character
+          if (B_UDRE) _tx_udr_empty_irq();
+
+          sw_barrier();
+        }
+
+      }
+      else {
+        // Wait until everything was transmitted
+        while (tx_buffer.head != tx_buffer.tail || !B_TXC) sw_barrier();
+      }
+
+      // At this point nothing is queued anymore (DRIE is disabled) and
+      // the hardware finished transmission (TXC is set).
+    }
+  }
+
+  /**
+   * Imports from print.h
+   */
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::print(char c, int base) {
+    print((long)c, base);
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::print(unsigned char b, int base) {
+    print((unsigned long)b, base);
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::print(int n, int base) {
+    print((long)n, base);
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::print(unsigned int n, int base) {
+    print((unsigned long)n, base);
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::print(long n, int base) {
+    if (base == 0) write(n);
+    else if (base == 10) {
+      if (n < 0) { print('-'); n = -n; }
+      printNumber(n, 10);
+    }
+    else
+      printNumber(n, base);
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::print(unsigned long n, int base) {
+    if (base == 0) write(n);
+    else printNumber(n, base);
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::print(double n, int digits) {
+    printFloat(n, digits);
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::println() {
+    print('\r');
+    print('\n');
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::println(const String& s) {
+    print(s);
+    println();
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::println(const char c[]) {
+    print(c);
+    println();
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::println(char c, int base) {
+    print(c, base);
+    println();
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::println(unsigned char b, int base) {
+    print(b, base);
+    println();
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::println(int n, int base) {
+    print(n, base);
+    println();
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::println(unsigned int n, int base) {
+    print(n, base);
+    println();
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::println(long n, int base) {
+    print(n, base);
+    println();
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::println(unsigned long n, int base) {
+    print(n, base);
+    println();
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::println(double n, int digits) {
+    print(n, digits);
+    println();
+  }
+
+  // Private Methods
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::printNumber(unsigned long n, uint8_t base) {
+    if (n) {
+      unsigned char buf[8 * sizeof(long)]; // Enough space for base 2
+      int8_t i = 0;
+      while (n) {
+        buf[i++] = n % base;
+        n /= base;
+      }
+      while (i--)
+        print((char)(buf[i] + (buf[i] < 10 ? '0' : 'A' - 10)));
+    }
+    else
+      print('0');
+  }
+
+  template<typename Cfg>
+  void MarlinSerial<Cfg>::printFloat(double number, uint8_t digits) {
+    // Handle negative numbers
+    if (number < 0.0) {
+      print('-');
+      number = -number;
+    }
+
+    // Round correctly so that print(1.999, 2) prints as "2.00"
+    double rounding = 0.5;
+    for (uint8_t i = 0; i < digits; ++i) rounding *= 0.1;
+    number += rounding;
+
+    // Extract the integer part of the number and print it
+    unsigned long int_part = (unsigned long)number;
+    double remainder = number - (double)int_part;
+    print(int_part);
+
+    // Print the decimal point, but only if there are digits beyond
+    if (digits) {
+      print('.');
+      // Extract digits from the remainder one at a time
+      while (digits--) {
+        remainder *= 10.0;
+        int toPrint = int(remainder);
+        print(toPrint);
+        remainder -= toPrint;
+      }
+    }
+  }
+
+  // Hookup ISR handlers
+  ISR(SERIAL_REGNAME(USART,SERIAL_PORT,_RX_vect)) {
+    MarlinSerial<MarlinSerialCfg<SERIAL_PORT>>::store_rxd_char();
+  }
+
+  ISR(SERIAL_REGNAME(USART,SERIAL_PORT,_UDRE_vect)) {
+    MarlinSerial<MarlinSerialCfg<SERIAL_PORT>>::_tx_udr_empty_irq();
+  }
+
+  // Preinstantiate
+  template class MarlinSerial<MarlinSerialCfg<SERIAL_PORT>>;
+
+  // Instantiate
+  MarlinSerial<MarlinSerialCfg<SERIAL_PORT>> customizedSerial1;
+
+  #ifdef SERIAL_PORT_2
+
+    // Hookup ISR handlers
+    ISR(SERIAL_REGNAME(USART,SERIAL_PORT_2,_RX_vect)) {
+      MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>>::store_rxd_char();
+    }
+
+    ISR(SERIAL_REGNAME(USART,SERIAL_PORT_2,_UDRE_vect)) {
+      MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>>::_tx_udr_empty_irq();
+    }
+
+    // Preinstantiate
+    template class MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>>;
+
+    // Instantiate
+    MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>> customizedSerial2;
+
+  #endif
+
+#endif // !USBCON && (UBRRH || UBRR0H || UBRR1H || UBRR2H || UBRR3H)
+
+#ifdef INTERNAL_SERIAL_PORT
+
+  ISR(SERIAL_REGNAME(USART,INTERNAL_SERIAL_PORT,_RX_vect)) {
+    MarlinSerial<MarlinInternalSerialCfg<INTERNAL_SERIAL_PORT>>::store_rxd_char();
+  }
+
+  ISR(SERIAL_REGNAME(USART,INTERNAL_SERIAL_PORT,_UDRE_vect)) {
+    MarlinSerial<MarlinInternalSerialCfg<INTERNAL_SERIAL_PORT>>::_tx_udr_empty_irq();
+  }
+
+  // Preinstantiate
+  template class MarlinSerial<MarlinInternalSerialCfg<INTERNAL_SERIAL_PORT>>;
+
+  // Instantiate
+  MarlinSerial<MarlinInternalSerialCfg<INTERNAL_SERIAL_PORT>> internalSerial;
+
+#endif
+
+// For AT90USB targets use the UART for BT interfacing
+#if defined(USBCON) && ENABLED(BLUETOOTH)
+  HardwareSerial bluetoothSerial;
+#endif
+
+#endif // __AVR__

Marlin/src/HAL/HAL_AVR/MarlinSerial.h

@@ -0,0 +1,298 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * MarlinSerial.h - Hardware serial library for Wiring
+ * Copyright (c) 2006 Nicholas Zambetti.  All right reserved.
+ *
+ * Modified 28 September 2010 by Mark Sproul
+ * Modified 14 February 2016 by Andreas Hardtung (added tx buffer)
+ * Modified 01 October 2017 by Eduardo José Tagle (added XON/XOFF)
+ * Templatized 01 October 2018 by Eduardo José Tagle to allow multiple instances
+ */
+
+#include "../shared/MarlinSerial.h"
+
+#include <WString.h>
+
+#ifndef SERIAL_PORT
+  #define SERIAL_PORT 0
+#endif
+
+#ifndef USBCON
+
+  // The presence of the UBRRH register is used to detect a UART.
+  #define UART_PRESENT(port) ((port == 0 && (defined(UBRRH) || defined(UBRR0H))) || \
+                              (port == 1 && defined(UBRR1H)) || (port == 2 && defined(UBRR2H)) || \
+                              (port == 3 && defined(UBRR3H)))
+
+  // These are macros to build serial port register names for the selected SERIAL_PORT (C preprocessor
+  // requires two levels of indirection to expand macro values properly)
+  #define SERIAL_REGNAME(registerbase,number,suffix) SERIAL_REGNAME_INTERNAL(registerbase,number,suffix)
+  #if SERIAL_PORT == 0 && (!defined(UBRR0H) || !defined(UDR0)) // use un-numbered registers if necessary
+    #define SERIAL_REGNAME_INTERNAL(registerbase,number,suffix) registerbase##suffix
+  #else
+    #define SERIAL_REGNAME_INTERNAL(registerbase,number,suffix) registerbase##number##suffix
+  #endif
+
+  // Registers used by MarlinSerial class (expanded depending on selected serial port)
+
+  // Templated 8bit register (generic)
+  #define UART_REGISTER_DECL_BASE(registerbase, suffix) \
+    template<int portNr> struct R_##registerbase##x##suffix {}
+
+  // Templated 8bit register (specialization for each port)
+  #define UART_REGISTER_DECL(port, registerbase, suffix) \
+    template<> struct R_##registerbase##x##suffix<port> { \
+      constexpr R_##registerbase##x##suffix(int) {} \
+      FORCE_INLINE void operator=(uint8_t newVal) const { SERIAL_REGNAME(registerbase,port,suffix) = newVal; } \
+      FORCE_INLINE operator uint8_t() const { return SERIAL_REGNAME(registerbase,port,suffix); } \
+    }
+
+  // Templated 1bit register (generic)
+  #define UART_BIT_DECL_BASE(registerbase, suffix, bit) \
+    template<int portNr>struct B_##bit##x {}
+
+  // Templated 1bit register (specialization for each port)
+  #define UART_BIT_DECL(port, registerbase, suffix, bit) \
+    template<> struct B_##bit##x<port> { \
+      constexpr B_##bit##x(int) {} \
+      FORCE_INLINE void operator=(int newVal) const { \
+        if (newVal) \
+          SBI(SERIAL_REGNAME(registerbase,port,suffix),SERIAL_REGNAME(bit,port,)); \
+        else \
+          CBI(SERIAL_REGNAME(registerbase,port,suffix),SERIAL_REGNAME(bit,port,)); \
+      } \
+      FORCE_INLINE operator bool() const { return TEST(SERIAL_REGNAME(registerbase,port,suffix),SERIAL_REGNAME(bit,port,)); } \
+    }
+
+  #define UART_DECL_BASE() \
+    UART_REGISTER_DECL_BASE(UCSR,A);\
+    UART_REGISTER_DECL_BASE(UDR,);\
+    UART_REGISTER_DECL_BASE(UBRR,H);\
+    UART_REGISTER_DECL_BASE(UBRR,L);\
+    UART_BIT_DECL_BASE(UCSR,B,RXEN);\
+    UART_BIT_DECL_BASE(UCSR,B,TXEN);\
+    UART_BIT_DECL_BASE(UCSR,A,TXC);\
+    UART_BIT_DECL_BASE(UCSR,B,RXCIE);\
+    UART_BIT_DECL_BASE(UCSR,A,UDRE);\
+    UART_BIT_DECL_BASE(UCSR,A,FE);\
+    UART_BIT_DECL_BASE(UCSR,A,DOR);\
+    UART_BIT_DECL_BASE(UCSR,B,UDRIE);\
+    UART_BIT_DECL_BASE(UCSR,A,RXC);\
+    UART_BIT_DECL_BASE(UCSR,A,U2X)
+
+  #define UART_DECL(port) \
+    UART_REGISTER_DECL(port,UCSR,A);\
+    UART_REGISTER_DECL(port,UDR,);\
+    UART_REGISTER_DECL(port,UBRR,H);\
+    UART_REGISTER_DECL(port,UBRR,L);\
+    UART_BIT_DECL(port,UCSR,B,RXEN);\
+    UART_BIT_DECL(port,UCSR,B,TXEN);\
+    UART_BIT_DECL(port,UCSR,A,TXC);\
+    UART_BIT_DECL(port,UCSR,B,RXCIE);\
+    UART_BIT_DECL(port,UCSR,A,UDRE);\
+    UART_BIT_DECL(port,UCSR,A,FE);\
+    UART_BIT_DECL(port,UCSR,A,DOR);\
+    UART_BIT_DECL(port,UCSR,B,UDRIE);\
+    UART_BIT_DECL(port,UCSR,A,RXC);\
+    UART_BIT_DECL(port,UCSR,A,U2X)
+
+  // Declare empty templates
+  UART_DECL_BASE();
+
+  // And all the specializations for each possible serial port
+  #if UART_PRESENT(0)
+    UART_DECL(0);
+  #endif
+  #if UART_PRESENT(1)
+    UART_DECL(1);
+  #endif
+  #if UART_PRESENT(2)
+    UART_DECL(2);
+  #endif
+  #if UART_PRESENT(3)
+    UART_DECL(3);
+  #endif
+
+  #define DEC 10
+  #define HEX 16
+  #define OCT 8
+  #define BIN 2
+  #define BYTE 0
+
+  // Templated type selector
+  template<bool b, typename T, typename F> struct TypeSelector { typedef T type;} ;
+  template<typename T, typename F> struct TypeSelector<false, T, F> { typedef F type; };
+
+  template<typename Cfg>
+  class MarlinSerial {
+  protected:
+    // Registers
+    static constexpr R_UCSRxA<Cfg::PORT> R_UCSRA = 0;
+    static constexpr R_UDRx<Cfg::PORT>   R_UDR   = 0;
+    static constexpr R_UBRRxH<Cfg::PORT> R_UBRRH = 0;
+    static constexpr R_UBRRxL<Cfg::PORT> R_UBRRL = 0;
+
+    // Bits
+    static constexpr B_RXENx<Cfg::PORT>  B_RXEN  = 0;
+    static constexpr B_TXENx<Cfg::PORT>  B_TXEN  = 0;
+    static constexpr B_TXCx<Cfg::PORT>   B_TXC   = 0;
+    static constexpr B_RXCIEx<Cfg::PORT> B_RXCIE = 0;
+    static constexpr B_UDREx<Cfg::PORT>  B_UDRE  = 0;
+    static constexpr B_FEx<Cfg::PORT>    B_FE    = 0;
+    static constexpr B_DORx<Cfg::PORT>   B_DOR   = 0;
+    static constexpr B_UDRIEx<Cfg::PORT> B_UDRIE = 0;
+    static constexpr B_RXCx<Cfg::PORT>   B_RXC   = 0;
+    static constexpr B_U2Xx<Cfg::PORT>   B_U2X   = 0;
+
+    // Base size of type on buffer size
+    typedef typename TypeSelector<(Cfg::RX_SIZE>256), uint16_t, uint8_t>::type ring_buffer_pos_t;
+
+    struct ring_buffer_r {
+      volatile ring_buffer_pos_t head, tail;
+      unsigned char buffer[Cfg::RX_SIZE];
+    };
+
+    struct ring_buffer_t {
+      volatile uint8_t head, tail;
+      unsigned char buffer[Cfg::TX_SIZE];
+    };
+
+    static ring_buffer_r rx_buffer;
+    static ring_buffer_t tx_buffer;
+    static bool _written;
+
+    static constexpr uint8_t XON_XOFF_CHAR_SENT = 0x80,  // XON / XOFF Character was sent
+                             XON_XOFF_CHAR_MASK = 0x1F;  // XON / XOFF character to send
+
+    // XON / XOFF character definitions
+    static constexpr uint8_t XON_CHAR  = 17, XOFF_CHAR = 19;
+    static uint8_t xon_xoff_state,
+                   rx_dropped_bytes,
+                   rx_buffer_overruns,
+                   rx_framing_errors;
+    static ring_buffer_pos_t rx_max_enqueued;
+
+    static FORCE_INLINE ring_buffer_pos_t atomic_read_rx_head();
+
+    static volatile bool rx_tail_value_not_stable;
+    static volatile uint16_t rx_tail_value_backup;
+
+    static FORCE_INLINE void atomic_set_rx_tail(ring_buffer_pos_t value);
+    static FORCE_INLINE ring_buffer_pos_t atomic_read_rx_tail();
+
+    public:
+
+    FORCE_INLINE static void store_rxd_char();
+    FORCE_INLINE static void _tx_udr_empty_irq();
+
+    public:
+      MarlinSerial() {};
+      static void begin(const long);
+      static void end();
+      static int peek();
+      static int read();
+      static void flush();
+      static ring_buffer_pos_t available();
+      static void write(const uint8_t c);
+      static void flushTX();
+
+      FORCE_INLINE static uint8_t dropped() { return Cfg::DROPPED_RX ? rx_dropped_bytes : 0; }
+      FORCE_INLINE static uint8_t buffer_overruns() { return Cfg::RX_OVERRUNS ? rx_buffer_overruns : 0; }
+      FORCE_INLINE static uint8_t framing_errors() { return Cfg::RX_FRAMING_ERRORS ? rx_framing_errors : 0; }
+      FORCE_INLINE static ring_buffer_pos_t rxMaxEnqueued() { return Cfg::MAX_RX_QUEUED ? rx_max_enqueued : 0; }
+
+      FORCE_INLINE static void write(const char* str) { while (*str) write(*str++); }
+      FORCE_INLINE static void write(const uint8_t* buffer, size_t size) { while (size--) write(*buffer++); }
+      FORCE_INLINE static void print(const String& s) { for (int i = 0; i < (int)s.length(); i++) write(s[i]); }
+      FORCE_INLINE static void print(const char* str) { write(str); }
+
+      static void print(char, int = BYTE);
+      static void print(unsigned char, int = BYTE);
+      static void print(int, int = DEC);
+      static void print(unsigned int, int = DEC);
+      static void print(long, int = DEC);
+      static void print(unsigned long, int = DEC);
+      static void print(double, int = 2);
+
+      static void println(const String& s);
+      static void println(const char[]);
+      static void println(char, int = BYTE);
+      static void println(unsigned char, int = BYTE);
+      static void println(int, int = DEC);
+      static void println(unsigned int, int = DEC);
+      static void println(long, int = DEC);
+      static void println(unsigned long, int = DEC);
+      static void println(double, int = 2);
+      static void println();
+      operator bool() { return true; }
+
+    private:
+      static void printNumber(unsigned long, const uint8_t);
+      static void printFloat(double, uint8_t);
+  };
+
+  template <uint8_t serial>
+  struct MarlinSerialCfg {
+    static constexpr int PORT               = serial;
+    static constexpr unsigned int RX_SIZE   = RX_BUFFER_SIZE;
+    static constexpr unsigned int TX_SIZE   = TX_BUFFER_SIZE;
+    static constexpr bool XONOFF            = bSERIAL_XON_XOFF;
+    static constexpr bool EMERGENCYPARSER   = bEMERGENCY_PARSER;
+    static constexpr bool DROPPED_RX        = bSERIAL_STATS_DROPPED_RX;
+    static constexpr bool RX_OVERRUNS       = bSERIAL_STATS_RX_BUFFER_OVERRUNS;
+    static constexpr bool RX_FRAMING_ERRORS = bSERIAL_STATS_RX_FRAMING_ERRORS;
+    static constexpr bool MAX_RX_QUEUED     = bSERIAL_STATS_MAX_RX_QUEUED;
+  };
+  extern MarlinSerial<MarlinSerialCfg<SERIAL_PORT>> customizedSerial1;
+
+  #ifdef SERIAL_PORT_2
+
+    extern MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>> customizedSerial2;
+
+  #endif
+
+#endif // !USBCON
+
+#ifdef INTERNAL_SERIAL_PORT
+  template <uint8_t serial>
+  struct MarlinInternalSerialCfg {
+    static constexpr int PORT               = serial;
+    static constexpr unsigned int RX_SIZE   = 32;
+    static constexpr unsigned int TX_SIZE   = 32;
+    static constexpr bool XONOFF            = false;
+    static constexpr bool EMERGENCYPARSER   = false;
+    static constexpr bool DROPPED_RX        = false;
+    static constexpr bool RX_OVERRUNS       = false;
+    static constexpr bool RX_FRAMING_ERRORS = false;
+    static constexpr bool MAX_RX_QUEUED     = false;
+  };
+
+  extern MarlinSerial<MarlinInternalSerialCfg<INTERNAL_SERIAL_PORT>> internalSerial;
+#endif
+
+// Use the UART for Bluetooth in AT90USB configurations
+#if defined(USBCON) && ENABLED(BLUETOOTH)
+  extern HardwareSerial bluetoothSerial;
+#endif

Marlin/src/HAL/HAL_AVR/Servo.cpp

@@ -0,0 +1,218 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * servo.cpp - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
+ * Copyright (c) 2009 Michael Margolis.  All right reserved.
+ */
+
+/**
+ * A servo is activated by creating an instance of the Servo class passing the desired pin to the attach() method.
+ * The servos are pulsed in the background using the value most recently written using the write() method
+ *
+ * Note that analogWrite of PWM on pins associated with the timer are disabled when the first servo is attached.
+ * Timers are seized as needed in groups of 12 servos - 24 servos use two timers, 48 servos will use four.
+ *
+ * The methods are:
+ *
+ * Servo - Class for manipulating servo motors connected to Arduino pins.
+ *
+ * attach(pin)           - Attach a servo motor to an i/o pin.
+ * attach(pin, min, max) - Attach to a pin, setting min and max values in microseconds
+ *                         Default min is 544, max is 2400
+ *
+ * write()               - Set the servo angle in degrees. (Invalid angles —over MIN_PULSE_WIDTH— are treated as µs.)
+ * writeMicroseconds()   - Set the servo pulse width in microseconds.
+ * move(pin, angle)      - Sequence of attach(pin), write(angle), safe_delay(servo_delay[servoIndex]).
+ *                         With DEACTIVATE_SERVOS_AFTER_MOVE it detaches after servo_delay[servoIndex].
+ * read()                - Get the last-written servo pulse width as an angle between 0 and 180.
+ * readMicroseconds()    - Get the last-written servo pulse width in microseconds.
+ * attached()            - Return true if a servo is attached.
+ * detach()              - Stop an attached servo from pulsing its i/o pin.
+ *
+ */
+
+#ifdef __AVR__
+
+#include "../../inc/MarlinConfig.h"
+
+#if HAS_SERVOS
+
+#include <avr/interrupt.h>
+
+#include "../shared/Marduino.h"
+#include "../shared/servo.h"
+#include "../shared/servo_private.h"
+
+static volatile int8_t Channel[_Nbr_16timers];              // counter for the servo being pulsed for each timer (or -1 if refresh interval)
+
+
+/************ static functions common to all instances ***********************/
+
+static inline void handle_interrupts(timer16_Sequence_t timer, volatile uint16_t* TCNTn, volatile uint16_t* OCRnA) {
+  if (Channel[timer] < 0)
+    *TCNTn = 0; // channel set to -1 indicated that refresh interval completed so reset the timer
+  else {
+    if (SERVO_INDEX(timer, Channel[timer]) < ServoCount && SERVO(timer, Channel[timer]).Pin.isActive)
+      extDigitalWrite(SERVO(timer, Channel[timer]).Pin.nbr, LOW); // pulse this channel low if activated
+  }
+
+  Channel[timer]++;    // increment to the next channel
+  if (SERVO_INDEX(timer, Channel[timer]) < ServoCount && Channel[timer] < SERVOS_PER_TIMER) {
+    *OCRnA = *TCNTn + SERVO(timer, Channel[timer]).ticks;
+    if (SERVO(timer, Channel[timer]).Pin.isActive)    // check if activated
+      extDigitalWrite(SERVO(timer, Channel[timer]).Pin.nbr, HIGH); // it's an active channel so pulse it high
+  }
+  else {
+    // finished all channels so wait for the refresh period to expire before starting over
+    if (((unsigned)*TCNTn) + 4 < usToTicks(REFRESH_INTERVAL))    // allow a few ticks to ensure the next OCR1A not missed
+      *OCRnA = (unsigned int)usToTicks(REFRESH_INTERVAL);
+    else
+      *OCRnA = *TCNTn + 4;  // at least REFRESH_INTERVAL has elapsed
+    Channel[timer] = -1; // this will get incremented at the end of the refresh period to start again at the first channel
+  }
+}
+
+#ifndef WIRING // Wiring pre-defines signal handlers so don't define any if compiling for the Wiring platform
+
+  // Interrupt handlers for Arduino
+  #ifdef _useTimer1
+    SIGNAL(TIMER1_COMPA_vect) { handle_interrupts(_timer1, &TCNT1, &OCR1A); }
+  #endif
+
+  #ifdef _useTimer3
+    SIGNAL(TIMER3_COMPA_vect) { handle_interrupts(_timer3, &TCNT3, &OCR3A); }
+  #endif
+
+  #ifdef _useTimer4
+    SIGNAL(TIMER4_COMPA_vect) { handle_interrupts(_timer4, &TCNT4, &OCR4A); }
+  #endif
+
+  #ifdef _useTimer5
+    SIGNAL(TIMER5_COMPA_vect) { handle_interrupts(_timer5, &TCNT5, &OCR5A); }
+  #endif
+
+#else // WIRING
+
+  // Interrupt handlers for Wiring
+  #ifdef _useTimer1
+    void Timer1Service() { handle_interrupts(_timer1, &TCNT1, &OCR1A); }
+  #endif
+  #ifdef _useTimer3
+    void Timer3Service() { handle_interrupts(_timer3, &TCNT3, &OCR3A); }
+  #endif
+
+#endif // WIRING
+
+/****************** end of static functions ******************************/
+
+void initISR(timer16_Sequence_t timer) {
+  #ifdef _useTimer1
+    if (timer == _timer1) {
+      TCCR1A = 0;             // normal counting mode
+      TCCR1B = _BV(CS11);     // set prescaler of 8
+      TCNT1 = 0;              // clear the timer count
+      #if defined(__AVR_ATmega8__) || defined(__AVR_ATmega128__)
+        SBI(TIFR, OCF1A);      // clear any pending interrupts;
+        SBI(TIMSK, OCIE1A);    // enable the output compare interrupt
+      #else
+        // here if not ATmega8 or ATmega128
+        SBI(TIFR1, OCF1A);     // clear any pending interrupts;
+        SBI(TIMSK1, OCIE1A);   // enable the output compare interrupt
+      #endif
+      #ifdef WIRING
+        timerAttach(TIMER1OUTCOMPAREA_INT, Timer1Service);
+      #endif
+    }
+  #endif
+
+  #ifdef _useTimer3
+    if (timer == _timer3) {
+      TCCR3A = 0;             // normal counting mode
+      TCCR3B = _BV(CS31);     // set prescaler of 8
+      TCNT3 = 0;              // clear the timer count
+      #ifdef __AVR_ATmega128__
+        SBI(TIFR, OCF3A);     // clear any pending interrupts;
+        SBI(ETIMSK, OCIE3A);  // enable the output compare interrupt
+      #else
+        SBI(TIFR3, OCF3A);   // clear any pending interrupts;
+        SBI(TIMSK3, OCIE3A); // enable the output compare interrupt
+      #endif
+      #ifdef WIRING
+        timerAttach(TIMER3OUTCOMPAREA_INT, Timer3Service);  // for Wiring platform only
+      #endif
+    }
+  #endif
+
+  #ifdef _useTimer4
+    if (timer == _timer4) {
+      TCCR4A = 0;             // normal counting mode
+      TCCR4B = _BV(CS41);     // set prescaler of 8
+      TCNT4 = 0;              // clear the timer count
+      TIFR4 = _BV(OCF4A);     // clear any pending interrupts;
+      TIMSK4 = _BV(OCIE4A);   // enable the output compare interrupt
+    }
+  #endif
+
+  #ifdef _useTimer5
+    if (timer == _timer5) {
+      TCCR5A = 0;             // normal counting mode
+      TCCR5B = _BV(CS51);     // set prescaler of 8
+      TCNT5 = 0;              // clear the timer count
+      TIFR5 = _BV(OCF5A);     // clear any pending interrupts;
+      TIMSK5 = _BV(OCIE5A);   // enable the output compare interrupt
+    }
+  #endif
+}
+
+void finISR(timer16_Sequence_t timer) {
+  // Disable use of the given timer
+  #ifdef WIRING
+    if (timer == _timer1) {
+      CBI(
+        #if defined(__AVR_ATmega1281__) || defined(__AVR_ATmega2561__)
+          TIMSK1
+        #else
+          TIMSK
+        #endif
+          , OCIE1A);    // disable timer 1 output compare interrupt
+      timerDetach(TIMER1OUTCOMPAREA_INT);
+    }
+    else if (timer == _timer3) {
+      CBI(
+        #if defined(__AVR_ATmega1281__) || defined(__AVR_ATmega2561__)
+          TIMSK3
+        #else
+          ETIMSK
+        #endif
+          , OCIE3A);    // disable the timer3 output compare A interrupt
+      timerDetach(TIMER3OUTCOMPAREA_INT);
+    }
+  #else // !WIRING
+    // For arduino - in future: call here to a currently undefined function to reset the timer
+    UNUSED(timer);
+  #endif
+}
+
+#endif // HAS_SERVOS
+
+#endif // __AVR__

Marlin/src/HAL/HAL_AVR/ServoTimers.h

@@ -0,0 +1,91 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * ServoTimers.h - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
+ * Copyright (c) 2009 Michael Margolis.  All right reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+/**
+ * Defines for 16 bit timers used with  Servo library
+ *
+ * If _useTimerX is defined then TimerX is a 16 bit timer on the current board
+ * timer16_Sequence_t enumerates the sequence that the timers should be allocated
+ * _Nbr_16timers indicates how many 16 bit timers are available.
+ */
+
+/**
+ * AVR Only definitions
+ * --------------------
+ */
+
+#define TRIM_DURATION           2   // compensation ticks to trim adjust for digitalWrite delays
+#define SERVO_TIMER_PRESCALER   8   // timer prescaler
+
+// Say which 16 bit timers can be used and in what order
+#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+  //#define _useTimer1
+  #define _useTimer3
+  #define _useTimer4
+  #if !HAS_MOTOR_CURRENT_PWM
+    #define _useTimer5 // Timer 5 is used for motor current PWM and can't be used for servos.
+  #endif
+#elif defined(__AVR_ATmega32U4__)
+  #define _useTimer3
+#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__)
+  #define _useTimer3
+#elif defined(__AVR_ATmega128__) || defined(__AVR_ATmega1281__) || defined(__AVR_ATmega1284P__) || defined(__AVR_ATmega2561__)
+  #define _useTimer3
+#else
+  // everything else
+#endif
+
+typedef enum {
+  #ifdef _useTimer1
+    _timer1,
+  #endif
+  #ifdef _useTimer3
+    _timer3,
+  #endif
+  #ifdef _useTimer4
+    _timer4,
+  #endif
+  #ifdef _useTimer5
+    _timer5,
+  #endif
+  _Nbr_16timers
+} timer16_Sequence_t;

Marlin/src/HAL/HAL_AVR/endstop_interrupts.h

@@ -0,0 +1,229 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * Endstop Interrupts
+ *
+ * Without endstop interrupts the endstop pins must be polled continually in
+ * the temperature-ISR via endstops.update(), most of the time finding no change.
+ * With this feature endstops.update() is called only when we know that at
+ * least one endstop has changed state, saving valuable CPU cycles.
+ *
+ * This feature only works when all used endstop pins can generate either an
+ * 'external interrupt' or a 'pin change interrupt'.
+ *
+ * Test whether pins issue interrupts on your board by flashing 'pin_interrupt_test.ino'.
+ * (Located in Marlin/buildroot/share/pin_interrupt_test/pin_interrupt_test.ino)
+ */
+
+#include "../../module/endstops.h"
+
+#include <stdint.h>
+
+// One ISR for all EXT-Interrupts
+void endstop_ISR() { endstops.update(); }
+
+/**
+ * Patch for pins_arduino.h (...\Arduino\hardware\arduino\avr\variants\mega\pins_arduino.h)
+ *
+ * These macros for the Arduino MEGA do not include the two connected pins on Port J (D13, D14).
+ * So we extend them here because these are the normal pins for Y_MIN and Y_MAX on RAMPS.
+ * There are more PCI-enabled processor pins on Port J, but they are not connected to Arduino MEGA.
+ */
+#if defined(ARDUINO_AVR_MEGA2560) || defined(ARDUINO_AVR_MEGA)
+  #undef  digitalPinToPCICR
+  #define digitalPinToPCICR(p)    ( WITHIN(p, 10, 15) || \
+                                    WITHIN(p, 50, 53) || \
+                                    WITHIN(p, 62, 69) ? &PCICR : nullptr )
+  #undef  digitalPinToPCICRbit
+  #define digitalPinToPCICRbit(p) ( WITHIN(p, 10, 13) || WITHIN(p, 50, 53) ? 0 : \
+                                    WITHIN(p, 14, 15) ? 1 : \
+                                    WITHIN(p, 62, 69) ? 2 : \
+                                    0 )
+  #undef  digitalPinToPCMSK
+  #define digitalPinToPCMSK(p)    ( WITHIN(p, 10, 13) || WITHIN(p, 50, 53) ? &PCMSK0 : \
+                                    WITHIN(p, 14, 15) ? &PCMSK1 : \
+                                    WITHIN(p, 62, 69) ? &PCMSK2 : \
+                                    nullptr )
+  #undef  digitalPinToPCMSKbit
+  #define digitalPinToPCMSKbit(p) ( WITHIN(p, 10, 13) ? ((p) - 6) : \
+                                    (p) == 14 || (p) == 51 ? 2 : \
+                                    (p) == 15 || (p) == 52 ? 1 : \
+                                    (p) == 50 ? 3 : \
+                                    (p) == 53 ? 0 : \
+                                    WITHIN(p, 62, 69) ? ((p) - 62) : \
+                                    0 )
+#endif
+
+
+// Install Pin change interrupt for a pin. Can be called multiple times.
+void pciSetup(const int8_t pin) {
+  if (digitalPinToPCMSK(pin) != nullptr) {
+    SBI(*digitalPinToPCMSK(pin), digitalPinToPCMSKbit(pin));  // enable pin
+    SBI(PCIFR, digitalPinToPCICRbit(pin)); // clear any outstanding interrupt
+    SBI(PCICR, digitalPinToPCICRbit(pin)); // enable interrupt for the group
+  }
+}
+
+// Handlers for pin change interrupts
+#ifdef PCINT0_vect
+  ISR(PCINT0_vect) { endstop_ISR(); }
+#endif
+
+#ifdef PCINT1_vect
+  ISR(PCINT1_vect, ISR_ALIASOF(PCINT0_vect));
+#endif
+
+#ifdef PCINT2_vect
+  ISR(PCINT2_vect, ISR_ALIASOF(PCINT0_vect));
+#endif
+
+#ifdef PCINT3_vect
+  ISR(PCINT3_vect, ISR_ALIASOF(PCINT0_vect));
+#endif
+
+void setup_endstop_interrupts() {
+  #define _ATTACH(P) attachInterrupt(digitalPinToInterrupt(P), endstop_ISR, CHANGE)
+  #if HAS_X_MAX
+    #if (digitalPinToInterrupt(X_MAX_PIN) != NOT_AN_INTERRUPT)
+      _ATTACH(X_MAX_PIN);
+    #else
+      static_assert(digitalPinToPCICR(X_MAX_PIN), "X_MAX_PIN is not interrupt-capable");
+      pciSetup(X_MAX_PIN);
+    #endif
+  #endif
+  #if HAS_X_MIN
+    #if (digitalPinToInterrupt(X_MIN_PIN) != NOT_AN_INTERRUPT)
+      _ATTACH(X_MIN_PIN);
+    #else
+      static_assert(digitalPinToPCICR(X_MIN_PIN), "X_MIN_PIN is not interrupt-capable");
+      pciSetup(X_MIN_PIN);
+    #endif
+  #endif
+  #if HAS_Y_MAX
+    #if (digitalPinToInterrupt(Y_MAX_PIN) != NOT_AN_INTERRUPT)
+      _ATTACH(Y_MAX_PIN);
+    #else
+      static_assert(digitalPinToPCICR(Y_MAX_PIN), "Y_MAX_PIN is not interrupt-capable");
+      pciSetup(Y_MAX_PIN);
+    #endif
+  #endif
+  #if HAS_Y_MIN
+    #if (digitalPinToInterrupt(Y_MIN_PIN) != NOT_AN_INTERRUPT)
+      _ATTACH(Y_MIN_PIN);
+    #else
+      static_assert(digitalPinToPCICR(Y_MIN_PIN), "Y_MIN_PIN is not interrupt-capable");
+      pciSetup(Y_MIN_PIN);
+    #endif
+  #endif
+  #if HAS_Z_MAX
+    #if (digitalPinToInterrupt(Z_MAX_PIN) != NOT_AN_INTERRUPT)
+      _ATTACH(Z_MAX_PIN);
+    #else
+      static_assert(digitalPinToPCICR(Z_MAX_PIN), "Z_MAX_PIN is not interrupt-capable");
+      pciSetup(Z_MAX_PIN);
+    #endif
+  #endif
+  #if HAS_Z_MIN
+    #if (digitalPinToInterrupt(Z_MIN_PIN) != NOT_AN_INTERRUPT)
+      _ATTACH(Z_MIN_PIN);
+    #else
+      static_assert(digitalPinToPCICR(Z_MIN_PIN), "Z_MIN_PIN is not interrupt-capable");
+      pciSetup(Z_MIN_PIN);
+    #endif
+  #endif
+  #if HAS_X2_MAX
+    #if (digitalPinToInterrupt(X2_MAX_PIN) != NOT_AN_INTERRUPT)
+      _ATTACH(X2_MAX_PIN);
+    #else
+      static_assert(digitalPinToPCICR(X2_MAX_PIN), "X2_MAX_PIN is not interrupt-capable");
+      pciSetup(X2_MAX_PIN);
+    #endif
+  #endif
+  #if HAS_X2_MIN
+    #if (digitalPinToInterrupt(X2_MIN_PIN) != NOT_AN_INTERRUPT)
+      _ATTACH(X2_MIN_PIN);
+    #else
+      static_assert(digitalPinToPCICR(X2_MIN_PIN), "X2_MIN_PIN is not interrupt-capable");
+      pciSetup(X2_MIN_PIN);
+    #endif
+  #endif
+  #if HAS_Y2_MAX
+    #if (digitalPinToInterrupt(Y2_MAX_PIN) != NOT_AN_INTERRUPT)
+      _ATTACH(Y2_MAX_PIN);
+    #else
+      static_assert(digitalPinToPCICR(Y2_MAX_PIN), "Y2_MAX_PIN is not interrupt-capable");
+      pciSetup(Y2_MAX_PIN);
+    #endif
+  #endif
+  #if HAS_Y2_MIN
+    #if (digitalPinToInterrupt(Y2_MIN_PIN) != NOT_AN_INTERRUPT)
+      _ATTACH(Y2_MIN_PIN);
+    #else
+      static_assert(digitalPinToPCICR(Y2_MIN_PIN), "Y2_MIN_PIN is not interrupt-capable");
+      pciSetup(Y2_MIN_PIN);
+    #endif
+  #endif
+  #if HAS_Z2_MAX
+    #if (digitalPinToInterrupt(Z2_MAX_PIN) != NOT_AN_INTERRUPT)
+      _ATTACH(Z2_MAX_PIN);
+    #else
+      static_assert(digitalPinToPCICR(Z2_MAX_PIN), "Z2_MAX_PIN is not interrupt-capable");
+      pciSetup(Z2_MAX_PIN);
+    #endif
+  #endif
+  #if HAS_Z2_MIN
+    #if (digitalPinToInterrupt(Z2_MIN_PIN) != NOT_AN_INTERRUPT)
+      _ATTACH(Z2_MIN_PIN);
+    #else
+      static_assert(digitalPinToPCICR(Z2_MIN_PIN), "Z2_MIN_PIN is not interrupt-capable");
+      pciSetup(Z2_MIN_PIN);
+    #endif
+  #endif
+  #if HAS_Z3_MAX
+    #if (digitalPinToInterrupt(Z3_MAX_PIN) != NOT_AN_INTERRUPT)
+      _ATTACH(Z3_MAX_PIN);
+    #else
+      static_assert(digitalPinToPCICR(Z3_MAX_PIN), "Z3_MAX_PIN is not interrupt-capable");
+      pciSetup(Z3_MAX_PIN);
+    #endif
+  #endif
+  #if HAS_Z3_MIN
+    #if (digitalPinToInterrupt(Z3_MIN_PIN) != NOT_AN_INTERRUPT)
+      _ATTACH(Z3_MIN_PIN);
+    #else
+      static_assert(digitalPinToPCICR(Z3_MIN_PIN), "Z3_MIN_PIN is not interrupt-capable");
+      pciSetup(Z3_MIN_PIN);
+    #endif
+  #endif
+  #if HAS_Z_MIN_PROBE_PIN
+    #if (digitalPinToInterrupt(Z_MIN_PROBE_PIN) != NOT_AN_INTERRUPT)
+      _ATTACH(Z_MIN_PROBE_PIN);
+    #else
+      static_assert(digitalPinToPCICR(Z_MIN_PROBE_PIN), "Z_MIN_PROBE_PIN is not interrupt-capable");
+      pciSetup(Z_MIN_PROBE_PIN);
+    #endif
+  #endif
+
+  // If we arrive here without raising an assertion, each pin has either an EXT-interrupt or a PCI.
+}

Marlin/src/HAL/HAL_AVR/fast_pwm.cpp

@@ -0,0 +1,282 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#ifdef __AVR__
+
+#include "../../inc/MarlinConfigPre.h"
+
+#if ENABLED(FAST_PWM_FAN) || SPINDLE_LASER_PWM
+
+#include "HAL.h"
+
+struct Timer {
+  volatile uint8_t* TCCRnQ[3];  // max 3 TCCR registers per timer
+  volatile uint16_t* OCRnQ[3];  // max 3 OCR registers per timer
+  volatile uint16_t* ICRn;      // max 1 ICR register per timer
+  uint8_t n;                    // the timer number [0->5]
+  uint8_t q;                    // the timer output [0->2] (A->C)
+};
+
+/**
+ * get_pwm_timer
+ *  Get the timer information and register of the provided pin.
+ *  Return a Timer struct containing this information.
+ *  Used by set_pwm_frequency, set_pwm_duty
+ */
+Timer get_pwm_timer(const pin_t pin) {
+  uint8_t q = 0;
+  switch (digitalPinToTimer(pin)) {
+    // Protect reserved timers (TIMER0 & TIMER1)
+    #ifdef TCCR0A
+      #if !AVR_AT90USB1286_FAMILY
+        case TIMER0A:
+      #endif
+      case TIMER0B:
+    #endif
+    #ifdef TCCR1A
+      case TIMER1A: case TIMER1B:
+    #endif
+                                        break;
+    #if defined(TCCR2) || defined(TCCR2A)
+      #ifdef TCCR2
+        case TIMER2: {
+          Timer timer = {
+            /*TCCRnQ*/  { &TCCR2, nullptr, nullptr },
+            /*OCRnQ*/   { (uint16_t*)&OCR2, nullptr, nullptr },
+            /*ICRn*/      nullptr,
+            /*n, q*/      2, 0
+          };
+        }
+      #elif defined(TCCR2A)
+        #if ENABLED(USE_OCR2A_AS_TOP)
+          case TIMER2A:   break; // protect TIMER2A
+          case TIMER2B: {
+            Timer timer = {
+              /*TCCRnQ*/  { &TCCR2A,  &TCCR2B,  nullptr },
+              /*OCRnQ*/   { (uint16_t*)&OCR2A, (uint16_t*)&OCR2B, nullptr },
+              /*ICRn*/      nullptr,
+              /*n, q*/      2, 1
+            };
+            return timer;
+          }
+        #else
+          case TIMER2B:   ++q;
+          case TIMER2A: {
+            Timer timer = {
+              /*TCCRnQ*/  { &TCCR2A,  &TCCR2B,  nullptr },
+              /*OCRnQ*/   { (uint16_t*)&OCR2A, (uint16_t*)&OCR2B, nullptr },
+              /*ICRn*/      nullptr,
+                            2, q
+            };
+            return timer;
+          }
+        #endif
+      #endif
+    #endif
+    #ifdef OCR3C
+      case TIMER3C:   ++q;
+      case TIMER3B:   ++q;
+      case TIMER3A: {
+        Timer timer = {
+          /*TCCRnQ*/  { &TCCR3A,  &TCCR3B,  &TCCR3C },
+          /*OCRnQ*/   { &OCR3A,   &OCR3B,   &OCR3C },
+          /*ICRn*/      &ICR3,
+          /*n, q*/      3, q
+        };
+        return timer;
+      }
+    #elif defined(OCR3B)
+      case TIMER3B:   ++q;
+      case TIMER3A: {
+        Timer timer = {
+          /*TCCRnQ*/  { &TCCR3A,  &TCCR3B,  nullptr },
+          /*OCRnQ*/   { &OCR3A,   &OCR3B,  nullptr },
+          /*ICRn*/      &ICR3,
+          /*n, q*/      3, q
+        };
+        return timer;
+      }
+    #endif
+    #ifdef TCCR4A
+      case TIMER4C:   ++q;
+      case TIMER4B:   ++q;
+      case TIMER4A: {
+        Timer timer = {
+          /*TCCRnQ*/  { &TCCR4A,  &TCCR4B,  &TCCR4C },
+          /*OCRnQ*/   { &OCR4A,   &OCR4B,   &OCR4C },
+          /*ICRn*/      &ICR4,
+          /*n, q*/      4, q
+        };
+        return timer;
+      }
+    #endif
+    #ifdef TCCR5A
+      case TIMER5C:   ++q;
+      case TIMER5B:   ++q;
+      case TIMER5A: {
+        Timer timer = {
+          /*TCCRnQ*/  { &TCCR5A,  &TCCR5B,  &TCCR5C },
+          /*OCRnQ*/   { &OCR5A,   &OCR5B,   &OCR5C },
+          /*ICRn*/      &ICR5,
+          /*n, q*/      5, q
+        };
+        return timer;
+      }
+    #endif
+  }
+  Timer timer = {
+      /*TCCRnQ*/  { nullptr, nullptr, nullptr },
+      /*OCRnQ*/   { nullptr, nullptr, nullptr },
+      /*ICRn*/      nullptr,
+                    0, 0
+  };
+  return timer;
+}
+
+void set_pwm_frequency(const pin_t pin, int f_desired) {
+  Timer timer = get_pwm_timer(pin);
+  if (timer.n == 0) return; // Don't proceed if protected timer or not recognised
+  uint16_t size;
+  if (timer.n == 2) size = 255; else size = 65535;
+
+  uint16_t res = 255;   // resolution (TOP value)
+  uint8_t j = 0;        // prescaler index
+  uint8_t wgm = 1;      // waveform generation mode
+
+  // Calculating the prescaler and resolution to use to achieve closest frequency
+  if (f_desired != 0) {
+    int f = (F_CPU) / (2 * 1024 * size) + 1; // Initialize frequency as lowest (non-zero) achievable
+    uint16_t prescaler[] = { 0, 1, 8, /*TIMER2 ONLY*/32, 64, /*TIMER2 ONLY*/128, 256, 1024 };
+
+    // loop over prescaler values
+    for (uint8_t i = 1; i < 8; i++) {
+      uint16_t res_temp_fast = 255, res_temp_phase_correct = 255;
+      if (timer.n == 2) {
+        // No resolution calculation for TIMER2 unless enabled USE_OCR2A_AS_TOP
+        #if ENABLED(USE_OCR2A_AS_TOP)
+          const uint16_t rtf = (F_CPU) / (prescaler[i] * f_desired);
+          res_temp_fast = rtf - 1;
+          res_temp_phase_correct = rtf / 2;
+        #endif
+      }
+      else {
+        // Skip TIMER2 specific prescalers when not TIMER2
+        if (i == 3 || i == 5) continue;
+        const uint16_t rtf = (F_CPU) / (prescaler[i] * f_desired);
+        res_temp_fast = rtf - 1;
+        res_temp_phase_correct = rtf / 2;
+      }
+
+      LIMIT(res_temp_fast, 1u, size);
+      LIMIT(res_temp_phase_correct, 1u, size);
+      // Calculate frequencies of test prescaler and resolution values
+      const int f_temp_fast = (F_CPU) / (prescaler[i] * (1 + res_temp_fast)),
+                f_temp_phase_correct = (F_CPU) / (2 * prescaler[i] * res_temp_phase_correct),
+                f_diff = ABS(f - f_desired),
+                f_fast_diff = ABS(f_temp_fast - f_desired),
+                f_phase_diff = ABS(f_temp_phase_correct - f_desired);
+
+      // If FAST values are closest to desired f
+      if (f_fast_diff < f_diff && f_fast_diff <= f_phase_diff) {
+        // Remember this combination
+        f = f_temp_fast;
+        res = res_temp_fast;
+        j = i;
+        // Set the Wave Generation Mode to FAST PWM
+        if (timer.n == 2) {
+          wgm = (
+            #if ENABLED(USE_OCR2A_AS_TOP)
+              WGM2_FAST_PWM_OCR2A
+            #else
+              WGM2_FAST_PWM
+            #endif
+          );
+        }
+        else wgm = WGM_FAST_PWM_ICRn;
+      }
+      // If PHASE CORRECT values are closes to desired f
+      else if (f_phase_diff < f_diff) {
+        f = f_temp_phase_correct;
+        res = res_temp_phase_correct;
+        j = i;
+        // Set the Wave Generation Mode to PWM PHASE CORRECT
+        if (timer.n == 2) {
+          wgm = (
+            #if ENABLED(USE_OCR2A_AS_TOP)
+              WGM2_PWM_PC_OCR2A
+            #else
+              WGM2_PWM_PC
+            #endif
+          );
+        }
+        else wgm = WGM_PWM_PC_ICRn;
+      }
+    }
+  }
+  _SET_WGMnQ(timer.TCCRnQ, wgm);
+  _SET_CSn(timer.TCCRnQ, j);
+
+  if (timer.n == 2) {
+    #if ENABLED(USE_OCR2A_AS_TOP)
+      _SET_OCRnQ(timer.OCRnQ, 0, res);  // Set OCR2A value (TOP) = res
+    #endif
+  }
+  else
+    _SET_ICRn(timer.ICRn, res);         // Set ICRn value (TOP) = res
+}
+
+void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size/*=255*/, const bool invert/*=false*/) {
+  // If v is 0 or v_size (max), digitalWrite to LOW or HIGH.
+  // Note that digitalWrite also disables pwm output for us (sets COM bit to 0)
+  if (v == 0)
+    digitalWrite(pin, invert);
+  else if (v == v_size)
+    digitalWrite(pin, !invert);
+  else {
+    Timer timer = get_pwm_timer(pin);
+    if (timer.n == 0) return; // Don't proceed if protected timer or not recognised
+    // Set compare output mode to CLEAR -> SET or SET -> CLEAR (if inverted)
+    _SET_COMnQ(timer.TCCRnQ, (timer.q
+        #ifdef TCCR2
+          + (timer.q == 2) // COM20 is on bit 4 of TCCR2, thus requires q + 1 in the macro
+        #endif
+      ), COM_CLEAR_SET + invert
+    );
+
+    uint16_t top;
+    if (timer.n == 2) { // if TIMER2
+      top = (
+        #if ENABLED(USE_OCR2A_AS_TOP)
+          *timer.OCRnQ[0] // top = OCR2A
+        #else
+          255 // top = 0xFF (max)
+        #endif
+      );
+    }
+    else
+      top = *timer.ICRn; // top = ICRn
+
+    _SET_OCRnQ(timer.OCRnQ, timer.q, v * float(top / v_size)); // Scale 8/16-bit v to top value
+  }
+}
+
+#endif // FAST_PWM_FAN || SPINDLE_LASER_PWM
+#endif // __AVR__

Marlin/src/HAL/HAL_AVR/fastio.cpp

@@ -0,0 +1,238 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Fast I/O for extended pins
+ */
+
+#ifdef __AVR__
+
+#include "fastio.h"
+
+#ifdef FASTIO_EXT_START
+
+#include "../shared/Marduino.h"
+
+#define _IS_EXT(P) WITHIN(P, FASTIO_EXT_START, FASTIO_EXT_END)
+
+void extDigitalWrite(const int8_t pin, const uint8_t state) {
+  #define _WCASE(N) case N: WRITE(N, state); break
+  switch (pin) {
+    default: digitalWrite(pin, state);
+    #if _IS_EXT(70)
+      _WCASE(70);
+    #endif
+    #if _IS_EXT(71)
+      _WCASE(71);
+    #endif
+    #if _IS_EXT(72)
+      _WCASE(72);
+    #endif
+    #if _IS_EXT(73)
+      _WCASE(73);
+    #endif
+    #if _IS_EXT(74)
+      _WCASE(74);
+    #endif
+    #if _IS_EXT(75)
+      _WCASE(75);
+    #endif
+    #if _IS_EXT(76)
+      _WCASE(76);
+    #endif
+    #if _IS_EXT(77)
+      _WCASE(77);
+    #endif
+    #if _IS_EXT(78)
+      _WCASE(78);
+    #endif
+    #if _IS_EXT(79)
+      _WCASE(79);
+    #endif
+    #if _IS_EXT(80)
+      _WCASE(80);
+    #endif
+    #if _IS_EXT(81)
+      _WCASE(81);
+    #endif
+    #if _IS_EXT(82)
+      _WCASE(82);
+    #endif
+    #if _IS_EXT(83)
+      _WCASE(83);
+    #endif
+    #if _IS_EXT(84)
+      _WCASE(84);
+    #endif
+    #if _IS_EXT(85)
+      _WCASE(85);
+    #endif
+    #if _IS_EXT(86)
+      _WCASE(86);
+    #endif
+    #if _IS_EXT(87)
+      _WCASE(87);
+    #endif
+    #if _IS_EXT(88)
+      _WCASE(88);
+    #endif
+    #if _IS_EXT(89)
+      _WCASE(89);
+    #endif
+    #if _IS_EXT(90)
+      _WCASE(90);
+    #endif
+    #if _IS_EXT(91)
+      _WCASE(91);
+    #endif
+    #if _IS_EXT(92)
+      _WCASE(92);
+    #endif
+    #if _IS_EXT(93)
+      _WCASE(93);
+    #endif
+    #if _IS_EXT(94)
+      _WCASE(94);
+    #endif
+    #if _IS_EXT(95)
+      _WCASE(95);
+    #endif
+    #if _IS_EXT(96)
+      _WCASE(96);
+    #endif
+    #if _IS_EXT(97)
+      _WCASE(97);
+    #endif
+    #if _IS_EXT(98)
+      _WCASE(98);
+    #endif
+    #if _IS_EXT(99)
+      _WCASE(99);
+    #endif
+    #if _IS_EXT(100)
+      _WCASE(100);
+    #endif
+  }
+}
+
+uint8_t extDigitalRead(const int8_t pin) {
+  #define _RCASE(N) case N: return READ(N)
+  switch (pin) {
+    default: return digitalRead(pin);
+    #if _IS_EXT(70)
+      _RCASE(70);
+    #endif
+    #if _IS_EXT(71)
+      _RCASE(71);
+    #endif
+    #if _IS_EXT(72)
+      _RCASE(72);
+    #endif
+    #if _IS_EXT(73)
+      _RCASE(73);
+    #endif
+    #if _IS_EXT(74)
+      _RCASE(74);
+    #endif
+    #if _IS_EXT(75)
+      _RCASE(75);
+    #endif
+    #if _IS_EXT(76)
+      _RCASE(76);
+    #endif
+    #if _IS_EXT(77)
+      _RCASE(77);
+    #endif
+    #if _IS_EXT(78)
+      _RCASE(78);
+    #endif
+    #if _IS_EXT(79)
+      _RCASE(79);
+    #endif
+    #if _IS_EXT(80)
+      _RCASE(80);
+    #endif
+    #if _IS_EXT(81)
+      _RCASE(81);
+    #endif
+    #if _IS_EXT(82)
+      _RCASE(82);
+    #endif
+    #if _IS_EXT(83)
+      _RCASE(83);
+    #endif
+    #if _IS_EXT(84)
+      _RCASE(84);
+    #endif
+    #if _IS_EXT(85)
+      _RCASE(85);
+    #endif
+    #if _IS_EXT(86)
+      _RCASE(86);
+    #endif
+    #if _IS_EXT(87)
+      _RCASE(87);
+    #endif
+    #if _IS_EXT(88)
+      _RCASE(88);
+    #endif
+    #if _IS_EXT(89)
+      _RCASE(89);
+    #endif
+    #if _IS_EXT(90)
+      _RCASE(90);
+    #endif
+    #if _IS_EXT(91)
+      _RCASE(91);
+    #endif
+    #if _IS_EXT(92)
+      _RCASE(92);
+    #endif
+    #if _IS_EXT(93)
+      _RCASE(93);
+    #endif
+    #if _IS_EXT(94)
+      _RCASE(94);
+    #endif
+    #if _IS_EXT(95)
+      _RCASE(95);
+    #endif
+    #if _IS_EXT(96)
+      _RCASE(96);
+    #endif
+    #if _IS_EXT(97)
+      _RCASE(97);
+    #endif
+    #if _IS_EXT(98)
+      _RCASE(98);
+    #endif
+    #if _IS_EXT(99)
+      _RCASE(99);
+    #endif
+    #if _IS_EXT(100)
+      _RCASE(100);
+    #endif
+  }
+}
+
+#endif // FASTIO_EXT_START
+#endif // __AVR__