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Sergey Vlasov 1ea54e5052
ChibiOS USB: Add a dummy IN callback to work around LLD bugs (#18811) 
In #18631 some IN notification callbacks that were doing nothing were
removed, which should be a valid thing to do (ChibiOS HAL checks the
`in_cb` and `out_cb` pointers for being non-NULL before invoking those
optional callbacks).  However, it turned out that some less popular USB
LLDs (KINETIS and MIMXRT1062) have their own checks for those pointers,
and (incorrectly) skip the ChibiOS callback handling when those pointers
are NULL, which breaks the code for the `USB_USE_WAIT` configuration
option (the waiting thread never gets resumed if the corresponding
callback pointer is NULL).

Add those dummy callbacks again (but use a single function for all of
them instead of individual ones for each endpoint); this restores the
KINETIS and MIMXRT1062 boards to the working state while the LLDs are
getting fixed.
2022-10-22 18:16:09 +01:00
..
protocol ChibiOS USB: Add a dummy IN callback to work around LLD bugs (#18811) 2022-10-22 18:16:09 +01:00
protocol.mk
readme.md

readme.md

TMK Keyboard Firmware Core Library

This is a keyboard firmware library with some useful features for Atmel AVR and Cortex-M.

Source code is available here: https://github.com/tmk/tmk_keyboard/tree/master/tmk_core

Updates

2016/02/10

flabbergast's Chibios protocol was merged from https://github.com/flabbergast/tmk_keyboard/tree/chibios. See protocol/chibios/README.md. Chibios protocol supports Cortex-M such as STM32 and Kinetis.

2015/04/22

separated with TMK Keyboard Firmware Collection

Features

These features can be used in your keyboard.

  • Multi-layer Keymap - Multiple keyboard layouts with layer switching
  • Mouse key - Mouse control with keyboard
  • System Control Key - Power Down, Sleep, Wake Up and USB Remote Wake up
  • Media Control Key - Volume Down/Up, Mute, Next/Prev track, Play, Stop and etc
  • USB NKRO - 248 keys(+ 8 modifiers) simultaneously
  • PS/2 mouse support - PS/2 mouse(TrackPoint) as composite device
  • User Function - Customizable function of key with writing code
  • Macro - Very primitive at this time
  • Keyboard Tricks - Oneshot modifier and modifier with tapping feature
  • Debug Console - Messages for debug and interaction with firmware
  • Virtual DIP Switch - Configurations stored EEPROM(Boot Magic)
  • Locking CapsLock - Mechanical switch support for CapsLock
  • Breathing Sleep LED - Sleep indicator with charm during USB suspend
  • Backlight - Control backlight levels

TMK Keyboard Firmware Collection

Complete firmwares for various keyboards and protocol converters.

https://github.com/tmk/tmk_keyboard

License

GPLv2 or later. Some protocol files are under Modified BSD License. ChibiOS, LUFA and V-USB stack have their own license respectively.

Build Firmware and Program Controller

See doc/build.md.

Start Your Own Project

TBD

Config.h Options

1. USB vendor/product ID and device description

#define VENDOR_ID       0xFEED
#define PRODUCT_ID      0xBEEF
#define MANUFACTURER    t.m.k.
#define PRODUCT         Macway mod

2. Keyboard matrix configuration

#define MATRIX_ROWS 8
#define MATRIX_COLS 8
#define MATRIX_HAS_GHOST

Architecture

Architecture Diagram
                           +---------------+---------------+-------------+
                           |    Host       |   Keyboard    | Matrix, LED |
   ___________             |-----------+-+ +-------------+ | +-----------|
  /          /| Keys/Mouse | Protocol  |d| | Action      | | | Protocol  |
 /__________/ |<-----------|  LUFA     |r| |  Layer, Tap | | |  Matrix   |
 |.--------.| |   LED      |  V-USB    |i| |-------------| | |  PS/2,IBM |             __________________
 ||        || |----------->|  UART     |v| | Keymap      | | |           |  Keys      / /_/_/_/_/_/_/_/ /|
 ||  Host  || |  Console   |           |e| | Mousekey    | | |           |<----------/ /_/_/_/_/_/_/_/ / /
 ||________||/.<-----------|           |r| | Report      | | |           | Control  / /_/_/_/_/_/_/_/ / /
 `_========_'/|            |---------------------------------------------|-------->/___ /_______/ ___/ /
 |_o______o_|/             | Sendchar, Print, Debug, Command, ...        |         |_________________|/
                           +---------------------------------------------+              Keyboard

Debugging

Use PJRC's hid_listen to see debug messages. You can use the tool for debug even if firmware use LUFA stack.

You can use xprintf() to display debug info on hid_listen, see common/xprintf.h.

Files and Directories

Top

  • common/ - common codes
  • protocol/ - keyboard protocol support
  • doc/ - documents
  • common.mk - Makefile for common
  • protocol.mk - Makefile for protocol
  • rules.mk - Makefile for build rules

Common

  • host.h
  • host_driver.h
  • keyboard.h
  • command.h
  • keymap.h
  • action.h
  • keycode.h
  • matrix.h
  • led.h
  • mousekey.h
  • report.h
  • debug.h
  • print.h
  • bootloader.h
  • sendchar.h
  • timer.h
  • util.h

Keyboard Protocols

  • lufa/ - LUFA USB stack
  • vusb/ - Objective Development V-USB
  • ps2.c - PS/2 protocol
  • serial_soft.c - Asynchronous Serial protocol implemented by software

Coding Style

  • Doesn't use Tab to indent, use 4-spaces instead.