061e662345
Because of integer promotion the compiler is having a hard time generating
efficient code to calculate TIMER_DIFF* macros in some situations.
In the below example, the return value is "int", and this is causing the
trouble.
Example C code:
int __attribute__ ((noinline)) test(uint8_t current_timer, uint8_t start_timer)
{
return TIMER_DIFF_8(current_timer, start_timer);
}
BEFORE: (with -Os)
00004c40 <test>:
4c40: 28 2f mov r18, r24
4c42: 30 e0 ldi r19, 0x00 ; 0
4c44: 46 2f mov r20, r22
4c46: 50 e0 ldi r21, 0x00 ; 0
4c48: 86 17 cp r24, r22
4c4a: 20 f0 brcs .+8 ; 0x4c54 <test+0x14>
4c4c: c9 01 movw r24, r18
4c4e: 84 1b sub r24, r20
4c50: 95 0b sbc r25, r21
4c52: 08 95 ret
4c54: c9 01 movw r24, r18
4c56: 84 1b sub r24, r20
4c58: 95 0b sbc r25, r21
4c5a: 93 95 inc r25
4c5c: 08 95 ret
AFTER: (with -Os)
00004c40 <test>:
4c40: 86 1b sub r24, r22
4c42: 90 e0 ldi r25, 0x00 ; 0
4c44: 08 95 ret
Note: the example is showing -Os but improvements can be seen at all optimization levels,
including -O0. We never use -O0, but I tested it to make sure that no extra code is
generated in that case.
|
||
|---|---|---|
| .. | ||
| common | ||
| doc | ||
| protocol | ||
| tool | ||
| .gitignore | ||
| .gitmodules | ||
| common.mk | ||
| ldscript_keymap_avr5.x | ||
| ldscript_keymap_avr35.x | ||
| ldscript_keymap_avr51.x | ||
| protocol.mk | ||
| README.md | ||
| ring_buffer.h | ||
| rules.mk | ||
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/core
Updates
2017/05/30
Fixed Modifier/Layer key stuck problem. See this wiki entry. https://github.com/tmk/tmk_keyboard/wiki/FAQ-Keymap#modifierlayer-stuck If you need old keymap behaviour for some reason define NO_TRACK_KEY_PRESS in your config.h.
This is virtually equivalent to QMK PREVENT_STUCK_MODIFIERS. https://github.com/qmk/qmk_firmware/pull/182
2017/01/11
Changed action code for ACTION_LAYER_MODS and this may cause incompatibility with existent shared URL and downloaded firmwware of keymap editor. If you are using the action you just have to redefine it on keymap editor. Existent keymap code should not suffer.
2016/06/26
Keymap framework was updated. fn_actions[] should be defined as action_t instead of uint16_t. And default code for keymap handling is now included in core you just need define uint8_t keymaps[][MATRIX_ROWS][MATRIX_COLS] and action_t fn_actions[].
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 - 120 keys(+ 8 modifiers) simultaneously
- PS/2 mouse support - PS/2 mouse(TrackPoint) as composite device
- Keyboard protocols - PS/2, ADB, M0110, Sun and other old keyboard protocols
- 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. LUFA, PJRC 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
#define DESCRIPTION t.m.k. keyboard firmware for 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 | __________________
|| || |----------->| PJRC |v| | Keymap | | | ADB,M0110| Keys / /_/_/_/_/_/_/_/ /|
|| Host || | Console | iWRAP(BT)|e| | Mousekey | | | SUN/NEWS |<----------/ /_/_/_/_/_/_/_/ / /
||________||/.<-----------| UART |r| | Report | | | X68K/PC98| 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
- pjrc/ - PJRC USB stack
- vusb/ - Objective Development V-USB
- iwrap/ - Bluetooth HID for Bluegiga iWRAP
- ps2.c - PS/2 protocol
- adb.c - Apple Desktop Bus protocol
- m0110.c - Macintosh 128K/512K/Plus keyboard protocol
- news.c - Sony NEWS keyboard protocol
- x68k.c - Sharp X68000 keyboard protocol
- serial_soft.c - Asynchronous Serial protocol implemented by software
Coding Style
- Doesn't use Tab to indent, use 4-spaces instead.