Add ChibiOS support (USB stack + support files).

tmk_core/common/chibios/bootloader.c

@@ -0,0 +1,7 @@
+/* TODO */
+/* ... chip dependent ... */
+
+#include "bootloader.h"
+
+
+void bootloader_jump(void) {}

tmk_core/common/chibios/printf.c

@@ -0,0 +1,240 @@
+/*
+ * found at: http://www.sparetimelabs.com/tinyprintf/tinyprintf.php
+ * and:      http://www.sparetimelabs.com/printfrevisited/printfrevisited.php
+ */
+
+/*
+File: printf.c
+
+Copyright (C) 2004  Kustaa Nyholm
+
+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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+*/
+
+#include "printf.h"
+
+typedef void (*putcf) (void*,char);
+static putcf stdout_putf;
+static void* stdout_putp;
+
+// this adds cca 400 bytes
+#define PRINTF_LONG_SUPPORT
+
+#ifdef PRINTF_LONG_SUPPORT
+
+static void uli2a(unsigned long int num, unsigned int base, int uc,char * bf)
+    {
+    int n=0;
+    unsigned int d=1;
+    while (num/d >= base)
+        d*=base;         
+    while (d!=0) {
+        int dgt = num / d;
+        num%=d;
+        d/=base;
+        if (n || dgt>0|| d==0) {
+            *bf++ = dgt+(dgt<10 ? '0' : (uc ? 'A' : 'a')-10);
+            ++n;
+            }
+        }
+    *bf=0;
+    }
+
+static void li2a (long num, char * bf)
+    {
+    if (num<0) {
+        num=-num;
+        *bf++ = '-';
+        }
+    uli2a(num,10,0,bf);
+    }
+
+#endif
+
+static void ui2a(unsigned int num, unsigned int base, int uc,char * bf)
+    {
+    int n=0;
+    unsigned int d=1;
+    while (num/d >= base)
+        d*=base;        
+    while (d!=0) {
+        int dgt = num / d;
+        num%= d;
+        d/=base;
+        if (n || dgt>0 || d==0) {
+            *bf++ = dgt+(dgt<10 ? '0' : (uc ? 'A' : 'a')-10);
+            ++n;
+            }
+        }
+    *bf=0;
+    }
+
+static void i2a (int num, char * bf)
+    {
+    if (num<0) {
+        num=-num;
+        *bf++ = '-';
+        }
+    ui2a(num,10,0,bf);
+    }
+
+static int a2d(char ch)
+    {
+    if (ch>='0' && ch<='9') 
+        return ch-'0';
+    else if (ch>='a' && ch<='f')
+        return ch-'a'+10;
+    else if (ch>='A' && ch<='F')
+        return ch-'A'+10;
+    else return -1;
+    }
+
+static char a2i(char ch, char** src,int base,int* nump)
+    {
+    char* p= *src;
+    int num=0;
+    int digit;
+    while ((digit=a2d(ch))>=0) {
+        if (digit>base) break;
+        num=num*base+digit;
+        ch=*p++;
+        }
+    *src=p;
+    *nump=num;
+    return ch;
+    }
+
+static void putchw(void* putp,putcf putf,int n, char z, char* bf)
+    {
+    char fc=z? '0' : ' ';
+    char ch;
+    char* p=bf;
+    while (*p++ && n > 0)
+        n--;
+    while (n-- > 0) 
+        putf(putp,fc);
+    while ((ch= *bf++))
+        putf(putp,ch);
+    }
+
+void tfp_format(void* putp,putcf putf,char *fmt, va_list va)
+    {
+    char bf[12];
+    
+    char ch;
+
+
+    while ((ch=*(fmt++))) {
+        if (ch!='%') 
+            putf(putp,ch);
+        else {
+            char lz=0;
+#ifdef  PRINTF_LONG_SUPPORT
+            char lng=0;
+#endif
+            int w=0;
+            ch=*(fmt++);
+            if (ch=='0') {
+                ch=*(fmt++);
+                lz=1;
+                }
+            if (ch>='0' && ch<='9') {
+                ch=a2i(ch,&fmt,10,&w);
+                }
+#ifdef  PRINTF_LONG_SUPPORT
+            if (ch=='l') {
+                ch=*(fmt++);
+                lng=1;
+            }
+#endif
+            switch (ch) {
+                case 0: 
+                    goto abort;
+                case 'u' : {
+#ifdef  PRINTF_LONG_SUPPORT
+                    if (lng)
+                        uli2a(va_arg(va, unsigned long int),10,0,bf);
+                    else
+#endif
+                    ui2a(va_arg(va, unsigned int),10,0,bf);
+                    putchw(putp,putf,w,lz,bf);
+                    break;
+                    }
+                case 'd' :  {
+#ifdef  PRINTF_LONG_SUPPORT
+                    if (lng)
+                        li2a(va_arg(va, unsigned long int),bf);
+                    else
+#endif
+                    i2a(va_arg(va, int),bf);
+                    putchw(putp,putf,w,lz,bf);
+                    break;
+                    }
+                case 'x': case 'X' : 
+#ifdef  PRINTF_LONG_SUPPORT
+                    if (lng)
+                        uli2a(va_arg(va, unsigned long int),16,(ch=='X'),bf);
+                    else
+#endif
+                    ui2a(va_arg(va, unsigned int),16,(ch=='X'),bf);
+                    putchw(putp,putf,w,lz,bf);
+                    break;
+                case 'c' : 
+                    putf(putp,(char)(va_arg(va, int)));
+                    break;
+                case 's' : 
+                    putchw(putp,putf,w,0,va_arg(va, char*));
+                    break;
+                case '%' :
+                    putf(putp,ch);
+                default:
+                    break;
+                }
+            }
+        }
+    abort:;
+    }
+
+
+void init_printf(void* putp,void (*putf) (void*,char))
+    {
+    stdout_putf=putf;
+    stdout_putp=putp;
+    }
+
+void tfp_printf(char *fmt, ...)
+    {
+    va_list va;
+    va_start(va,fmt);
+    tfp_format(stdout_putp,stdout_putf,fmt,va);
+    va_end(va);
+    }
+
+static void putcp(void* p,char c)
+    {
+    *(*((char**)p))++ = c;
+    }
+
+
+
+void tfp_sprintf(char* s,char *fmt, ...)
+    {
+    va_list va;
+    va_start(va,fmt);
+    tfp_format(&s,putcp,fmt,va);
+    putcp(&s,0);
+    va_end(va);
+    }

tmk_core/common/chibios/printf.h

@@ -0,0 +1,111 @@
+/*
+ * found at: http://www.sparetimelabs.com/tinyprintf/tinyprintf.php
+ * and:      http://www.sparetimelabs.com/printfrevisited/printfrevisited.php
+ */
+
+/*
+File: printf.h
+
+Copyright (C) 2004  Kustaa Nyholm
+
+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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+This library is realy just two files: 'printf.h' and 'printf.c'.
+
+They provide a simple and small (+200 loc) printf functionality to 
+be used in embedded systems.
+
+I've found them so usefull in debugging that I do not bother with a 
+debugger at all.
+
+They are distributed in source form, so to use them, just compile them 
+into your project. 
+
+Two printf variants are provided: printf and sprintf. 
+
+The formats supported by this implementation are: 'd' 'u' 'c' 's' 'x' 'X'.
+
+Zero padding and field width are also supported.
+
+If the library is compiled with 'PRINTF_SUPPORT_LONG' defined then the 
+long specifier is also
+supported. Note that this will pull in some long math routines (pun intended!)
+and thus make your executable noticably longer.
+
+The memory foot print of course depends on the target cpu, compiler and 
+compiler options, but a rough guestimate (based on a H8S target) is about 
+1.4 kB for code and some twenty 'int's and 'char's, say 60 bytes of stack space. 
+Not too bad. Your milage may vary. By hacking the source code you can 
+get rid of some hunred bytes, I'm sure, but personally I feel the balance of 
+functionality and flexibility versus  code size is close to optimal for
+many embedded systems.
+
+To use the printf you need to supply your own character output function, 
+something like :
+
+	void putc ( void* p, char c)
+		{
+		while (!SERIAL_PORT_EMPTY) ;
+		SERIAL_PORT_TX_REGISTER = c;
+		}
+
+Before you can call printf you need to initialize it to use your 
+character output function with something like:
+
+	init_printf(NULL,putc);
+
+Notice the 'NULL' in 'init_printf' and the parameter 'void* p' in 'putc', 
+the NULL (or any pointer) you pass into the 'init_printf' will eventually be 
+passed to your 'putc' routine. This allows you to pass some storage space (or 
+anything realy) to the character output function, if necessary. 
+This is not often needed but it was implemented like that because it made 
+implementing the sprintf function so neat (look at the source code).
+
+The code is re-entrant, except for the 'init_printf' function, so it 
+is safe to call it from interupts too, although this may result in mixed output. 
+If you rely on re-entrancy, take care that your 'putc' function is re-entrant!
+
+The printf and sprintf functions are actually macros that translate to 
+'tfp_printf' and 'tfp_sprintf'. This makes it possible
+to use them along with 'stdio.h' printf's in a single source file. 
+You just need to undef the names before you include the 'stdio.h'.
+Note that these are not function like macros, so if you have variables
+or struct members with these names, things will explode in your face.
+Without variadic macros this is the best we can do to wrap these
+fucnction. If it is a problem just give up the macros and use the
+functions directly or rename them.
+
+For further details see source code.
+
+regs Kusti, 23.10.2004
+*/
+
+
+#ifndef __TFP_PRINTF__
+#define __TFP_PRINTF__
+
+#include <stdarg.h>
+
+void init_printf(void* putp,void (*putf) (void*,char));
+
+void tfp_printf(char *fmt, ...);
+void tfp_sprintf(char* s,char *fmt, ...);
+
+void tfp_format(void* putp,void (*putf) (void*,char),char *fmt, va_list va);
+
+#define printf tfp_printf 
+#define sprintf tfp_sprintf 
+
+#endif

tmk_core/common/chibios/suspend.c

@@ -0,0 +1,8 @@
+/* TODO */
+
+#include <stdbool.h>
+
+
+void suspend_power_down(void) {}
+bool suspend_wakeup_condition(void) { return true; }
+void suspend_wakeup_init(void) {}

tmk_core/common/chibios/timer.c

@@ -0,0 +1,27 @@
+#include "ch.h"
+
+#include "timer.h"
+
+void timer_init(void) {}
+
+void timer_clear(void) {}
+
+uint16_t timer_read(void)
+{
+    return (uint16_t)ST2MS(chVTGetSystemTime());
+}
+
+uint32_t timer_read32(void)
+{
+    return ST2MS(chVTGetSystemTime());
+}
+
+uint16_t timer_elapsed(uint16_t last)
+{
+    return (uint16_t)(ST2MS(chVTTimeElapsedSinceX(MS2ST(last))));
+}
+
+uint32_t timer_elapsed32(uint32_t last)
+{
+	return ST2MS(chVTTimeElapsedSinceX(MS2ST(last)));
+}

tmk_core/common/command.c

@@ -287,6 +287,9 @@ static bool command_common(uint8_t code)
 #ifdef PROTOCOL_VUSB
             " VUSB"
 #endif
+#ifdef PROTOCOL_CHIBIOS
+            " CHIBIOS"
+#endif
 #ifdef BOOTMAGIC_ENABLE
             " BOOTMAGIC"
 #endif

tmk_core/common/print.c

@@ -38,11 +38,15 @@ void print_set_sendchar(int8_t (*sendchar_func)(uint8_t))
     xdev_out(sendchar_func);
 }
 
-#elif defined(__arm__)
+#elif defined(PROTOCOL_CHIBIOS) /* __AVR__ */
+
+// don't need anything extra
+
+#elif defined(__arm__) /* __AVR__ */
 
 // TODO
 //void print_set_sendchar(int8_t (*sendchar_func)(uint8_t)) { }
 
-#endif
+#endif /* __AVR__ */
 
 #endif

tmk_core/common/print.h

@@ -47,7 +47,15 @@ extern "C"
 /* function pointer of sendchar to be used by print utility */
 void print_set_sendchar(int8_t (*print_sendchar_func)(uint8_t));
 
-#elif defined(__arm__)
+#elif defined(PROTOCOL_CHIBIOS) /* __AVR__ */
+
+#include "chibios/printf.h"
+
+#define print(s)    printf(s)
+#define println(s)  printf(s "\r\n")
+#define xprintf  printf
+
+#elif defined(__arm__) /* __AVR__ */
 
 #include "mbed/xprintf.h"
 

tmk_core/common/wait.h

@@ -9,9 +9,13 @@ extern "C" {
 #   include <util/delay.h>
 #   define wait_ms(ms)  _delay_ms(ms)
 #   define wait_us(us)  _delay_us(us)
-#elif defined(__arm__)
+#elif defined(PROTOCOL_CHIBIOS) /* __AVR__ */
+#   include "ch.h"
+#   define wait_ms(ms) chThdSleepMilliseconds(ms)
+#   define wait_us(us) chThdSleepMicroseconds(us)
+#elif defined(__arm__) /* __AVR__ */
 #   include "wait_api.h"
-#endif
+#endif /* __AVR__ */
 
 #ifdef __cplusplus
 }

tmk_core/protocol/chibios/.gitignore

@@ -0,0 +1 @@
+chibios

tmk_core/protocol/chibios/README.md

@@ -0,0 +1,25 @@
+## USB stack implementation using ChibiOS
+
+### Notes
+
+- To use, unpack or symlink ChibiOS here, to `chibios`.
+- For gcc options, inspect `chibios.mk`. For instance, I enabled `-Wno-missing-field-initializers`, because TMK common bits generated a lot of hits on that.
+Also pay attention to `-O0` (enabled for debugging); for deployment use `-O2`.
+- USB string descriptors are a mess. I did not find a way to cleanly generate the right structures from actual strings, so the definitions in individual keyboards' `config.h` are ugly as heck.
+- There are some random constants left so far, e.g. 5ms sleep between calling `keyboard_task` in `main.c`. There should be no such in `usb_main.c`. Everything is based on timers/interrupts/kernel scheduling (well except `keyboard_task`), so no periodically called things (again, except `keyboard_task`, which is just how TMK is designed).
+- It is easy to add some code for testing (e.g. blink LED, do stuff on button press, etc...) - just create another thread in `main.c`, it will run independently of the keyboard business.
+- The USB stack works pretty completely; however there are bits of other TMK stuff that are not done yet:
+
+### Immediate todo
+
+- suspend / sleep led
+
+### Missing / not working (TMK vs ChibiOS bits)
+
+- eeprom / bootmagic (will be chip dependent)
+- bootloader jump (chip dependent)
+
+### Tried with
+
+- ChibiOS 3.0.1 and ST F072RB DISCOVERY board.
+- Need to test on other STM32 chips (F3, F4) to make it as much chip-independent as possible.

tmk_core/protocol/chibios/chibios.mk

@@ -0,0 +1,225 @@
+##############################################################################
+# Build global options
+# NOTE: Can be overridden externally.
+#
+
+# Compiler options here.
+ifeq ($(USE_OPT),)
+  USE_OPT = -O0 -ggdb -fomit-frame-pointer -falign-functions=16 -std=gnu99 -DPROTOCOL_CHIBIOS
+endif
+
+# C specific options here (added to USE_OPT).
+ifeq ($(USE_COPT),)
+  USE_COPT =
+endif
+
+# include specific config.h?
+ifdef CONFIG_H
+    USE_COPT += -include $(CONFIG_H)
+endif
+
+# C++ specific options here (added to USE_OPT).
+ifeq ($(USE_CPPOPT),)
+  USE_CPPOPT = -fno-rtti
+endif
+
+# Enable this if you want the linker to remove unused code and data
+ifeq ($(USE_LINK_GC),)
+  USE_LINK_GC = yes
+endif
+
+# Linker extra options here.
+ifeq ($(USE_LDOPT),)
+  USE_LDOPT =
+endif
+
+# Enable this if you want link time optimizations (LTO)
+ifeq ($(USE_LTO),)
+  USE_LTO = yes
+endif
+
+# If enabled, this option allows to compile the application in THUMB mode.
+ifeq ($(USE_THUMB),)
+  USE_THUMB = yes
+endif
+
+# Enable this if you want to see the full log while compiling.
+ifeq ($(USE_VERBOSE_COMPILE),)
+  USE_VERBOSE_COMPILE = no
+endif
+
+# If enabled, this option makes the build process faster by not compiling
+# modules not used in the current configuration.
+ifeq ($(USE_SMART_BUILD),)
+  USE_SMART_BUILD = yes
+endif
+
+#
+# Build global options
+##############################################################################
+
+##############################################################################
+# Architecture or project specific options
+#
+
+# Stack size to be allocated to the Cortex-M process stack. This stack is
+# the stack used by the main() thread.
+ifeq ($(USE_PROCESS_STACKSIZE),)
+  USE_PROCESS_STACKSIZE = 0x200
+endif
+
+# Stack size to the allocated to the Cortex-M main/exceptions stack. This
+# stack is used for processing interrupts and exceptions.
+ifeq ($(USE_EXCEPTIONS_STACKSIZE),)
+  USE_EXCEPTIONS_STACKSIZE = 0x400
+endif
+
+#
+# Architecture or project specific options
+##############################################################################
+
+##############################################################################
+# Project, sources and paths
+#
+
+# Imported source files and paths
+CHIBIOS = $(TMK_DIR)/protocol/chibios/chibios
+# Startup files.
+include $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC/mk/startup_$(shell echo $(MCU_SERIES) | tr '[:upper:]' '[:lower:]').mk
+# HAL-OSAL files (optional).
+include $(CHIBIOS)/os/hal/hal.mk
+include $(CHIBIOS)/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)/platform.mk
+ifneq ("$(wildcard $(TARGET_DIR)/boards/$(BOARD))","")
+	include $(TARGET_DIR)/boards/$(BOARD)/board.mk
+else
+	include $(CHIBIOS)/os/hal/boards/$(BOARD)/board.mk
+endif
+include $(CHIBIOS)/os/hal/osal/rt/osal.mk
+# RTOS files (optional).
+include $(CHIBIOS)/os/rt/rt.mk
+include $(CHIBIOS)/os/rt/ports/ARMCMx/compilers/GCC/mk/port_v6m.mk
+# Other files (optional).
+
+# Define linker script file here
+ifneq ("$(wildcard $(TARGET_DIR)/ld/$(MCU_MODEL_FAMILY).ld)","")
+LDSCRIPT = $(TARGET_DIR)/ld/$(MCU_MODEL_FAMILY).ld
+else
+LDSCRIPT = $(STARTUPLD)/$(MCU_MODEL_FAMILY).ld
+endif
+
+# C sources that can be compiled in ARM or THUMB mode depending on the global
+# setting.
+CSRC = $(STARTUPSRC) \
+       $(KERNSRC) \
+       $(PORTSRC) \
+       $(OSALSRC) \
+       $(HALSRC) \
+       $(PLATFORMSRC) \
+       $(BOARDSRC) \
+       $(CHIBIOS)/os/hal/lib/streams/chprintf.c \
+       $(TMK_DIR)/protocol/chibios/usb_main.c \
+       $(TMK_DIR)/protocol/chibios/main.c \
+       $(SRC)
+
+# C++ sources that can be compiled in ARM or THUMB mode depending on the global
+# setting.
+CPPSRC =
+
+# C sources to be compiled in ARM mode regardless of the global setting.
+# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler
+#       option that results in lower performance and larger code size.
+ACSRC =
+
+# C++ sources to be compiled in ARM mode regardless of the global setting.
+# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler
+#       option that results in lower performance and larger code size.
+ACPPSRC =
+
+# C sources to be compiled in THUMB mode regardless of the global setting.
+# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler
+#       option that results in lower performance and larger code size.
+TCSRC =
+
+# C sources to be compiled in THUMB mode regardless of the global setting.
+# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler
+#       option that results in lower performance and larger code size.
+TCPPSRC =
+
+# List ASM source files here
+ASMSRC = $(STARTUPASM) $(PORTASM) $(OSALASM)
+
+INCDIR = $(STARTUPINC) $(KERNINC) $(PORTINC) $(OSALINC) \
+         $(HALINC) $(PLATFORMINC) $(BOARDINC) $(TESTINC) \
+         $(CHIBIOS)/os/hal/lib/streams $(CHIBIOS)/os/various \
+         $(TMK_DIR) $(COMMON_DIR) $(TMK_DIR)/protocol/chibios \
+         $(TARGET_DIR)
+
+#
+# Project, sources and paths
+##############################################################################
+
+##############################################################################
+# Compiler settings
+#
+
+MCU  = cortex-m0
+
+#TRGT = arm-elf-
+TRGT = arm-none-eabi-
+CC   = $(TRGT)gcc
+CPPC = $(TRGT)g++
+# Enable loading with g++ only if you need C++ runtime support.
+# NOTE: You can use C++ even without C++ support if you are careful. C++
+#       runtime support makes code size explode.
+LD   = $(TRGT)gcc
+#LD   = $(TRGT)g++
+CP   = $(TRGT)objcopy
+AS   = $(TRGT)gcc -x assembler-with-cpp
+AR   = $(TRGT)ar
+OD   = $(TRGT)objdump
+SZ   = $(TRGT)size
+HEX  = $(CP) -O ihex
+BIN  = $(CP) -O binary
+
+# ARM-specific options here
+AOPT =
+
+# THUMB-specific options here
+TOPT = -mthumb -DTHUMB
+
+# Define C warning options here
+CWARN = -Wall -Wextra -Wundef -Wstrict-prototypes -Wno-missing-field-initializers
+
+# Define C++ warning options here
+CPPWARN = -Wall -Wextra -Wundef
+
+#
+# Compiler settings
+##############################################################################
+
+##############################################################################
+# Start of user section
+#
+
+# List all user C define here, like -D_DEBUG=1
+## Select which interfaces to include here!
+UDEFS = $(OPT_DEFS)
+
+# Define ASM defines here
+UADEFS =
+
+# List all user directories here
+UINCDIR =
+
+# List the user directory to look for the libraries here
+ULIBDIR =
+
+# List all user libraries here
+ULIBS =
+
+#
+# End of user defines
+##############################################################################
+
+RULESPATH = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC
+include $(RULESPATH)/rules.mk

tmk_core/protocol/chibios/main.c

@@ -0,0 +1,91 @@
+/*
+ * (c) 2015 flabberast <s3+flabbergast@sdfeu.org>
+ *
+ * Based on the following work:
+ *  - Guillaume Duc's raw hid example (MIT License)
+ *    https://github.com/guiduc/usb-hid-chibios-example
+ *  - PJRC Teensy examples (MIT License)
+ *    https://www.pjrc.com/teensy/usb_keyboard.html
+ *  - hasu's TMK keyboard code (GPL v2 and some code Modified BSD)
+ *    https://github.com/tmk/tmk_keyboard/
+ *  - ChibiOS demo code (Apache 2.0 License)
+ *    http://www.chibios.org
+ *
+ * Since some GPL'd code is used, this work is licensed under
+ * GPL v2 or later.
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+#include "usb_main.h"
+
+/* TMK includes */
+#include "report.h"
+#include "host.h"
+#include "host_driver.h"
+#include "keyboard.h"
+#include "action.h"
+#include "led.h"
+#include "sendchar.h"
+#include "debug.h"
+#ifdef SLEEP_LED_ENABLE
+#include "sleep_led.h"
+#endif
+#include "suspend.h"
+
+
+/* -------------------------
+ *   TMK host driver defs
+ * -------------------------
+ */
+
+host_driver_t chibios_driver = {
+  keyboard_leds,
+  send_keyboard,
+  send_mouse,
+  send_system,
+  send_consumer
+};
+
+/* Main thread
+ */
+int main(void) {
+  /* ChibiOS/RT init */
+  halInit();
+  chSysInit();
+
+  palSetPad(GPIOC, GPIOC_LED_BLUE);
+  chThdSleepMilliseconds(400);
+  palClearPad(GPIOC, GPIOC_LED_BLUE);
+
+  /* Init USB */
+  init_usb_driver();
+
+  /* init printf */
+  init_printf(NULL,sendchar_pf);
+
+  /* Wait until the USB is active */
+  while(USB_DRIVER.state != USB_ACTIVE)
+    chThdSleepMilliseconds(50);
+
+  print("USB configured.\n");
+
+  /* init TMK modules */
+  keyboard_init();
+  host_set_driver(&chibios_driver);
+
+#ifdef SLEEP_LED_ENABLE
+    sleep_led_init();
+#endif
+
+  print("Keyboard start.\n");
+
+  /* Main loop */
+  while(true) {
+    /* TODO: check for suspended event */
+
+    keyboard_task();
+    chThdSleepMilliseconds(5);
+  }
+}

tmk_core/protocol/chibios/usb_main.h

@@ -0,0 +1,149 @@
+/*
+ * (c) 2015 flabberast <s3+flabbergast@sdfeu.org>
+ *
+ * Based on the following work:
+ *  - Guillaume Duc's raw hid example (MIT License)
+ *    https://github.com/guiduc/usb-hid-chibios-example
+ *  - PJRC Teensy examples (MIT License)
+ *    https://www.pjrc.com/teensy/usb_keyboard.html
+ *  - hasu's TMK keyboard code (GPL v2 and some code Modified BSD)
+ *    https://github.com/tmk/tmk_keyboard/
+ *  - ChibiOS demo code (Apache 2.0 License)
+ *    http://www.chibios.org
+ *
+ * Since some GPL'd code is used, this work is licensed under
+ * GPL v2 or later.
+ */
+
+
+#ifndef _USB_MAIN_H_
+#define _USB_MAIN_H_
+
+#include "ch.h"
+#include "hal.h"
+
+/* -------------------------
+ * General USB driver header
+ * -------------------------
+ */
+
+/* The USB driver to use */
+#define USB_DRIVER USBD1
+
+/* Initialize the USB driver and bus */
+void init_usb_driver(void);
+
+/* ---------------
+ * Keyboard header
+ * ---------------
+ */
+
+/* main keyboard (6kro) */
+#define KBD_INTERFACE   0
+#define KBD_ENDPOINT    1
+#define KBD_SIZE        8
+#define KBD_REPORT_KEYS   (KBD_SIZE - 2)
+
+/* secondary keyboard */
+#ifdef NKRO_ENABLE
+#define NKRO_INTERFACE    4
+#define NKRO_ENDPOINT     5
+#define NKRO_SIZE         16
+#define NKRO_REPORT_KEYS  (NKRO_SIZE - 1)
+#endif
+
+/* this defines report_keyboard_t and computes REPORT_SIZE defines */
+#include "report.h"
+
+/* extern report_keyboard_t keyboard_report_sent; */
+
+/* keyboard IN request callback handler */
+void kbd_in_cb(USBDriver *usbp, usbep_t ep);
+
+/* start-of-frame handler */
+void kbd_sof_cb(USBDriver *usbp);
+
+#ifdef NKRO_ENABLE
+/* nkro IN callback hander */
+void nkro_in_cb(USBDriver *usbp, usbep_t ep);
+#endif /* NKRO_ENABLE */
+
+/* ------------
+ * Mouse header
+ * ------------
+ */
+
+#ifdef MOUSE_ENABLE
+
+#define MOUSE_INTERFACE         1
+#define MOUSE_ENDPOINT          2
+#define MOUSE_SIZE              8
+
+/* mouse IN request callback handler */
+void mouse_in_cb(USBDriver *usbp, usbep_t ep);
+#endif /* MOUSE_ENABLE */
+
+/* ---------------
+ * Extrakey header
+ * ---------------
+ */
+
+#ifdef EXTRAKEY_ENABLE
+
+#define EXTRA_INTERFACE         3
+#define EXTRA_ENDPOINT          4
+#define EXTRA_SIZE              8
+
+/* extrakey IN request callback handler */
+void extra_in_cb(USBDriver *usbp, usbep_t ep);
+
+/* extra report structure */
+typedef struct {
+  uint8_t report_id;
+  uint16_t usage;
+} __attribute__ ((packed)) report_extra_t;
+#endif /* EXTRAKEY_ENABLE */
+
+/* --------------
+ * Console header
+ * --------------
+ */
+
+#ifdef CONSOLE_ENABLE
+
+#define CONSOLE_INTERFACE      2
+#define CONSOLE_ENDPOINT       3
+#define CONSOLE_SIZE           16
+
+/* Number of IN reports that can be stored inside the output queue */
+#define CONSOLE_QUEUE_CAPACITY 2
+#define CONSOLE_QUEUE_BUFFER_SIZE (CONSOLE_QUEUE_CAPACITY * CONSOLE_SIZE)
+
+/* Console flush time */
+#define CONSOLE_FLUSH_MS 50
+
+/* Putchar over the USB console */
+int8_t sendchar(uint8_t c);
+/* wrapper for printf lib */
+
+/* Flush output (send everything immediately) */
+void console_flush_output(void);
+
+/* console IN request callback handler */
+void console_in_cb(USBDriver *usbp, usbep_t ep);
+#endif /* CONSOLE_ENABLE */
+
+void sendchar_pf(void *p, char c);
+
+/* ---------------------------
+ * Host driver functions (TMK)
+ * ---------------------------
+ */
+
+uint8_t keyboard_leds(void);
+void send_keyboard(report_keyboard_t *report);
+void send_mouse(report_mouse_t *report);
+void send_system(uint16_t data);
+void send_consumer(uint16_t data);
+
+#endif /* _USB_MAIN_H_ */

tmk_core/tool/chibios/common.mk

@@ -0,0 +1,86 @@
+COMMON_DIR = $(TMK_DIR)/common
+SRC +=	$(COMMON_DIR)/host.c \
+	$(COMMON_DIR)/keyboard.c \
+	$(COMMON_DIR)/action.c \
+	$(COMMON_DIR)/action_tapping.c \
+	$(COMMON_DIR)/action_macro.c \
+	$(COMMON_DIR)/action_layer.c \
+	$(COMMON_DIR)/action_util.c \
+	$(COMMON_DIR)/keymap.c \
+	$(COMMON_DIR)/print.c \
+	$(COMMON_DIR)/debug.c \
+	$(COMMON_DIR)/util.c \
+	$(COMMON_DIR)/chibios/suspend.c \
+	$(COMMON_DIR)/chibios/printf.c \
+	$(COMMON_DIR)/chibios/timer.c \
+	$(COMMON_DIR)/chibios/bootloader.c
+
+
+# Option modules
+ifdef BOOTMAGIC_ENABLE
+    $(error Bootmagic Not Supported)
+    SRC += $(COMMON_DIR)/bootmagic.c
+    SRC += $(COMMON_DIR)/chibios/eeconfig.c
+    OPT_DEFS += -DBOOTMAGIC_ENABLE
+endif
+
+ifdef MOUSEKEY_ENABLE
+    SRC += $(COMMON_DIR)/mousekey.c
+    OPT_DEFS += -DMOUSEKEY_ENABLE
+    OPT_DEFS += -DMOUSE_ENABLE
+endif
+
+ifdef EXTRAKEY_ENABLE
+    OPT_DEFS += -DEXTRAKEY_ENABLE
+endif
+
+ifdef CONSOLE_ENABLE
+    OPT_DEFS += -DCONSOLE_ENABLE
+else
+    OPT_DEFS += -DNO_PRINT
+    OPT_DEFS += -DNO_DEBUG
+endif
+
+ifdef COMMAND_ENABLE
+    SRC += $(COMMON_DIR)/command.c
+    OPT_DEFS += -DCOMMAND_ENABLE
+endif
+
+ifdef NKRO_ENABLE
+    OPT_DEFS += -DNKRO_ENABLE
+endif
+
+ifdef USB_6KRO_ENABLE
+    OPT_DEFS += -DUSB_6KRO_ENABLE
+endif
+
+ifdef SLEEP_LED_ENABLE
+    $(error Sleep LED Not Supported)
+    SRC += $(COMMON_DIR)/sleep_led.c
+    OPT_DEFS += -DSLEEP_LED_ENABLE
+    OPT_DEFS += -DNO_SUSPEND_POWER_DOWN
+endif
+
+ifdef BACKLIGHT_ENABLE
+    SRC += $(COMMON_DIR)/backlight.c
+    OPT_DEFS += -DBACKLIGHT_ENABLE
+endif
+
+ifdef KEYMAP_SECTION_ENABLE
+    OPT_DEFS += -DKEYMAP_SECTION_ENABLE
+
+    ifeq ($(strip $(MCU)),atmega32u2)
+	EXTRALDFLAGS = -Wl,-L$(TMK_DIR),-Tldscript_keymap_avr35.x
+    else ifeq ($(strip $(MCU)),atmega32u4)
+	EXTRALDFLAGS = -Wl,-L$(TMK_DIR),-Tldscript_keymap_avr5.x
+    else
+	EXTRALDFLAGS = $(error no ldscript for keymap section)
+    endif
+endif
+
+# Version string
+OPT_DEFS += -DVERSION=$(shell (git describe --always --dirty || echo 'unknown') 2> /dev/null)
+
+
+# Search Path
+VPATH += $(TMK_DIR)/common