From 4d4f7684e684bec319f166121463a88cd4a62703 Mon Sep 17 00:00:00 2001 From: fredizzimo Date: Fri, 1 Jul 2016 17:04:53 +0300 Subject: Add ChibiOS support for QMK (#465) * Modularity and gcc warnings fixes. * Add ChibiOS support (USB stack + support files). * Make usb_main more USB_DRIVER #define independent. * Move chibios to tool. * Implement jump-to-bootloader. * Small updates. * Fix bootloader-jump compiling. * Move AVR specific sleep_led.c into avr. * Add basic sleep_led for chibios. * Update chibios README. * NKRO fixes. * Rename some Makefile defines. * Move STM32 bootloader address config to separate .h file. * Add ARM Teensies bootloader code. * Fix chibios/usb_main GET_REPORT handing. * Add missing #include to keymap.c. * Make bootmagic.c code portable (_delay_ms -> wait_ms). * Move declaration of keymap_config. Should really not declare variables in .h files - since it's included in different .c files, a proper linker then complains that the same variable is declared more than once (once for each .c file that the offending .h is included in). * Add eeprom support for chibios/kinetis. * Rename chibios example keyboard. * Move chibios/cortex selection to local Makefiles. * Chibios: use WFI in idle. WIP suspend stuff. * ChibiOS/kinetis: sending remote wakeup. * ChibiOS/STM32: send remote wakeup. * Fix report size of boot protocol. * Fix drop key stroke Keyboard report should be checked if its transfer finishs successfully. Otherwise key stroke can be missing when other key event occurs before the last report transfer is done. Boot protocol 10ms interval probably causes this problem in case it receives key events in a row within the period. NKRO protocol suffers less or nothing due to its interval 1ms. * Chibios/usb_main: rename a variable for clarity. * Add correct chibios/bootloader_jump for infinity KB. * ChibiOS: make reset request more CMSISy. * Chibios: Add breathing sleep LED on Kinetis MCUs. * ChibiOS: Update infinity bootloader code to match updated ChibiOS. * ChibiOS: prettify/document sleep_led code. * Chibios: Remove the wait in the main loop. * Add maple mini code. * Do timeout when writing to CONSOLE EP queue. Fixes TMK bug #266. * Chibios: add 'core/protocol' to the makefiles' search path. * Chibios: Update to new USB API. * Chibios: add more guards for transmitting (fix a deadlock bug). * Add update for chibios in README * Chibios: Fix a HardFault bug (wait after start). * Chibios: cleanup usb_main code. * Chibios: Revert common.mk change (fix AVR linking problem). * core: Fix chibios user compile options Compile options can be defined in project Makefile such as UDEFS, UADEFS, UINCDIR, ULIBDIR and ULIBS. * Sysv format for ChibiOS arm-none-eabi-size Some new patches to ChibiOS puts heap as it's own section. So the berkeley format is now useless, as the heap will be included in the BSS report. The sysv format displays the bss size correctly. * Fix hard-coded path of CHIBIOS * Add support for new version of ChibiOS and Contrib The Kinetis support has moved to a separate Contrib repository in the newest version of Chibios. There has also been some structure changes. So this adds support for those, while maintaining back- wards compability. * Update ChibiOS instructions * Chibios: implement sleep LED for STM32. * Chibios: Update the main chibios README. * Chibios: fix STM32_BOOTLOADER_ADDRESS name. * Chibios: make the default bootloader_jump redefinable (weak). * Chibios: disable LTO (link-time optimisation). With LTO enabled, sometimes things fail for mysterious reasons (e.g. bootloader jump on WF with LEDs enabled), just because the linker optimisation is too aggressive. * Chibios: add default location for chibios-contrib. * ChibiOS: update mk to match chibios/master. * ChibiOS: update instructions.md. * Add chibi_onekey example. * Add comments to chibi_onekey Makefile. * Rename some Makefile defines. * Move STM32 bootloader address config to separate .h file. * Rename chibios example keyboard. * Move chibios/cortex selection to local Makefiles. * Add Teensy LC onekey example. * Chibios: use WFI in idle. WIP suspend stuff. * Update chibi/teensy instructions. * Update chibios/Teensy instructions. * Add infinity_chibios * Add keymap_hasu.c * Infinity_chibios: select correct bootloader_jump. * Infinity_chibios: improve comments. * Add generic STM32F103C8T6 example. * Add maple mini code. * STM32F103x fixes. * Add maple mini pinout pic. * Chibios: updates for 3.0.4 git. * Chibios: rename example stm32_onekey -> stm32_f072_onekey. * Chibios: add makefiles for Teensy 3.x examples. * Chibios: update Teensy 3.x instructions. * Chibios: Tsy LC is cortex-m0plus. * Chibios: add more guards for transmitting (fix a deadlock bug). * Change README for chibios * Chibios: update examples to current chibios git. Match the changes in mainline chibios: - update chconf.h - update supplied ld scripts structure - update Teensy instructions (switch to official chibios and introduce contrib) * Add ChibiOS and ChibiOS-Contrib submodules Also fix the makefile path for them. * Moves chibios keyboards to keyboards folder * First version of ChibiOS compilation Only the stm32_f072_onkey keyboard is ported at the moment. It compiles, but still doesn't link. * More chibios fixes It now compiles without warnings and links * Move the teensy_lc_onekey to the keyboards folder * Clean up the make file rule structure * Remove keymap_fn_to_action * Update more ChibiOS keyboards to QMK Most of them does not compile at the moment though. * Use older version of Chibios libraries The newest ones have problems with compilation * Remove USB_UNCONFIGURED event It isn't present in the older version of ChibiOS * Fix the infinity_chibios compilation * Fix potentially uninitialized variable * Add missing include * Fix the ChibiOS makefile * Fix some Chibios keyboard compilation * Revert the rules.mk file back to master version * Combine the chibios and AVR makefiles With just the required overrides in the respective platform specific one. * Slight makefile restrucuring Platform specific compiler options * Move avr specific targets out of the main rules * Fix ChibiOS objcopy The ChibiOS objcopy needs different parameters, so the parameters are moved to the corresponding platform rule file * Fix the objcopy for real this time The comands were moved around, so chibios used avr and the ohter way around. Also change the objsize output format * Fix the thumb flags * Fix the infinity hasu keymap * Per platform cpp flags * Add gcc-arm-none-eabi package to travis * Add arm-none-eabi-newlib to travis * Fix the name of the libnewlib-arm-none-eabi lib * Fix the ChibiOS paths So that they are properly relative, and builds don't generate extra folders * Fix the board path of stm32_f103_onekey * Only consider folders with Makefiles as subproject --- tmk_core/avr.mk | 185 ++++ tmk_core/chibios.mk | 154 +++ tmk_core/common.mk | 36 +- tmk_core/common/action_tapping.c | 2 +- tmk_core/common/avr/eeconfig.c | 56 - tmk_core/common/avr/sleep_led.c | 95 ++ tmk_core/common/bootmagic.c | 7 +- tmk_core/common/chibios/bootloader.c | 47 + tmk_core/common/chibios/eeprom.c | 588 ++++++++++ tmk_core/common/chibios/printf.c | 240 +++++ tmk_core/common/chibios/printf.h | 111 ++ tmk_core/common/chibios/sleep_led.c | 226 ++++ tmk_core/common/chibios/suspend.c | 65 ++ tmk_core/common/chibios/timer.c | 27 + tmk_core/common/command.c | 23 +- tmk_core/common/eeconfig.c | 56 + tmk_core/common/eeprom.h | 22 + tmk_core/common/magic.c | 4 +- tmk_core/common/print.c | 8 +- tmk_core/common/print.h | 10 +- tmk_core/common/progmem.h | 4 +- tmk_core/common/report.h | 5 + tmk_core/common/sleep_led.c | 95 -- tmk_core/common/wait.h | 8 +- tmk_core/protocol/chibios.mk | 10 + tmk_core/protocol/chibios/README.md | 55 + tmk_core/protocol/chibios/main.c | 147 +++ tmk_core/protocol/chibios/usb_main.c | 1372 ++++++++++++++++++++++++ tmk_core/protocol/chibios/usb_main.h | 139 +++ tmk_core/readme.md | 16 +- tmk_core/rules.mk | 220 +--- tmk_core/tool/chibios/.gitignore | 2 + tmk_core/tool/chibios/ch-bootloader-jump.patch | 116 ++ 33 files changed, 3757 insertions(+), 394 deletions(-) create mode 100644 tmk_core/avr.mk create mode 100644 tmk_core/chibios.mk delete mode 100644 tmk_core/common/avr/eeconfig.c create mode 100644 tmk_core/common/avr/sleep_led.c create mode 100644 tmk_core/common/chibios/bootloader.c create mode 100644 tmk_core/common/chibios/eeprom.c create mode 100644 tmk_core/common/chibios/printf.c create mode 100644 tmk_core/common/chibios/printf.h create mode 100644 tmk_core/common/chibios/sleep_led.c create mode 100644 tmk_core/common/chibios/suspend.c create mode 100644 tmk_core/common/chibios/timer.c create mode 100644 tmk_core/common/eeconfig.c create mode 100644 tmk_core/common/eeprom.h delete mode 100644 tmk_core/common/sleep_led.c create mode 100644 tmk_core/protocol/chibios.mk create mode 100644 tmk_core/protocol/chibios/README.md create mode 100644 tmk_core/protocol/chibios/main.c create mode 100644 tmk_core/protocol/chibios/usb_main.c create mode 100644 tmk_core/protocol/chibios/usb_main.h create mode 100644 tmk_core/tool/chibios/.gitignore create mode 100644 tmk_core/tool/chibios/ch-bootloader-jump.patch (limited to 'tmk_core') diff --git a/tmk_core/avr.mk b/tmk_core/avr.mk new file mode 100644 index 0000000000..72be5e6da1 --- /dev/null +++ b/tmk_core/avr.mk @@ -0,0 +1,185 @@ +# Hey Emacs, this is a -*- makefile -*- +############################################################################## +# Compiler settings +# +CC = avr-gcc +OBJCOPY = avr-objcopy +OBJDUMP = avr-objdump +SIZE = avr-size +AR = avr-ar rcs +NM = avr-nm +HEX = $(OBJCOPY) -O $(FORMAT) -R .eeprom -R .fuse -R .lock -R .signature +EEP = $(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 --no-change-warnings -O $(FORMAT) + + + +COMPILEFLAGS += -funsigned-char +COMPILEFLAGS += -funsigned-bitfields +COMPILEFLAGS += -ffunction-sections +COMPILEFLAGS += -fdata-sections +COMPILEFLAGS += -fpack-struct +COMPILEFLAGS += -fshort-enums + +CFLAGS += $(COMPILEFLAGS) +CFLAGS += -fno-inline-small-functions +CFLAGS += -fno-strict-aliasing + +CPPFLAGS += $(COMPILEFLAGS) +CPPFLAGS += -fno-exceptions + +LDFLAGS +=-Wl,--gc-sections + +OPT_DEFS += -DF_CPU=$(F_CPU)UL + +MCUFLAGS = -mmcu=$(MCU) + +# List any extra directories to look for libraries here. +# Each directory must be seperated by a space. +# Use forward slashes for directory separators. +# For a directory that has spaces, enclose it in quotes. +EXTRALIBDIRS = + + +#---------------- External Memory Options ---------------- + +# 64 KB of external RAM, starting after internal RAM (ATmega128!), +# used for variables (.data/.bss) and heap (malloc()). +#EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff + +# 64 KB of external RAM, starting after internal RAM (ATmega128!), +# only used for heap (malloc()). +#EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff + +EXTMEMOPTS = + +#---------------- Debugging Options ---------------- + +# Debugging format. +# Native formats for AVR-GCC's -g are dwarf-2 [default] or stabs. +# AVR Studio 4.10 requires dwarf-2. +# AVR [Extended] COFF format requires stabs, plus an avr-objcopy run. +DEBUG = dwarf-2 + +# For simulavr only - target MCU frequency. +DEBUG_MFREQ = $(F_CPU) + +# Set the DEBUG_UI to either gdb or insight. +# DEBUG_UI = gdb +DEBUG_UI = insight + +# Set the debugging back-end to either avarice, simulavr. +DEBUG_BACKEND = avarice +#DEBUG_BACKEND = simulavr + +# GDB Init Filename. +GDBINIT_FILE = __avr_gdbinit + +# When using avarice settings for the JTAG +JTAG_DEV = /dev/com1 + +# Debugging port used to communicate between GDB / avarice / simulavr. +DEBUG_PORT = 4242 + +# Debugging host used to communicate between GDB / avarice / simulavr, normally +# just set to localhost unless doing some sort of crazy debugging when +# avarice is running on a different computer. +DEBUG_HOST = localhost + +#============================================================================ +# Autodecct teensy loader +ifneq (, $(shell which teensy-loader-cli 2>/dev/null)) + TEENSY_LOADER_CLI = teensy-loader-cli +else + TEENSY_LOADER_CLI = teensy_loader_cli +endif + +# Program the device. +program: $(BUILD_DIR)/$(TARGET).hex $(BUILD_DIR)/$(TARGET).eep + $(PROGRAM_CMD) + +teensy: $(BUILD_DIR)/$(TARGET).hex + $(TEENSY_LOADER_CLI) -mmcu=$(MCU) -w -v $(BUILD_DIR)/$(TARGET).hex + +flip: $(BUILD_DIR)/$(TARGET).hex + batchisp -hardware usb -device $(MCU) -operation erase f + batchisp -hardware usb -device $(MCU) -operation loadbuffer $(BUILD_DIR)/$(TARGET).hex program + batchisp -hardware usb -device $(MCU) -operation start reset 0 + +dfu: $(BUILD_DIR)/$(TARGET).hex sizeafter +ifneq (, $(findstring 0.7, $(shell dfu-programmer --version 2>&1))) + dfu-programmer $(MCU) erase --force +else + dfu-programmer $(MCU) erase +endif + dfu-programmer $(MCU) flash $(BUILD_DIR)/$(TARGET).hex + dfu-programmer $(MCU) reset + +dfu-start: + dfu-programmer $(MCU) reset + dfu-programmer $(MCU) start + +flip-ee: $(BUILD_DIR)/$(TARGET).hex $(BUILD_DIR)/$(TARGET).eep + $(COPY) $(BUILD_DIR)/$(TARGET).eep $(BUILD_DIR)/$(TARGET)eep.hex + batchisp -hardware usb -device $(MCU) -operation memory EEPROM erase + batchisp -hardware usb -device $(MCU) -operation memory EEPROM loadbuffer $(BUILD_DIR)/$(TARGET)eep.hex program + batchisp -hardware usb -device $(MCU) -operation start reset 0 + $(REMOVE) $(BUILD_DIR)/$(TARGET)eep.hex + +dfu-ee: $(BUILD_DIR)/$(TARGET).hex $(BUILD_DIR)/$(TARGET).eep +ifneq (, $(findstring 0.7, $(shell dfu-programmer --version 2>&1))) + dfu-programmer $(MCU) flash --eeprom $(BUILD_DIR)/$(TARGET).eep +else + dfu-programmer $(MCU) flash-eeprom $(BUILD_DIR)/$(TARGET).eep +endif + dfu-programmer $(MCU) reset + + +# Generate avr-gdb config/init file which does the following: +# define the reset signal, load the target file, connect to target, and set +# a breakpoint at main(). +gdb-config: + @$(REMOVE) $(GDBINIT_FILE) + @echo define reset >> $(GDBINIT_FILE) + @echo SIGNAL SIGHUP >> $(GDBINIT_FILE) + @echo end >> $(GDBINIT_FILE) + @echo file $(BUILD_DIR)/$(TARGET).elf >> $(GDBINIT_FILE) + @echo target remote $(DEBUG_HOST):$(DEBUG_PORT) >> $(GDBINIT_FILE) +ifeq ($(DEBUG_BACKEND),simulavr) + @echo load >> $(GDBINIT_FILE) +endif + @echo break main >> $(GDBINIT_FILE) + +debug: gdb-config $(BUILD_DIR)/$(TARGET).elf +ifeq ($(DEBUG_BACKEND), avarice) + @echo Starting AVaRICE - Press enter when "waiting to connect" message displays. + @$(WINSHELL) /c start avarice --jtag $(JTAG_DEV) --erase --program --file \ + $(BUILD_DIR)/$(TARGET).elf $(DEBUG_HOST):$(DEBUG_PORT) + @$(WINSHELL) /c pause + +else + @$(WINSHELL) /c start simulavr --gdbserver --device $(MCU) --clock-freq \ + $(DEBUG_MFREQ) --port $(DEBUG_PORT) +endif + @$(WINSHELL) /c start avr-$(DEBUG_UI) --command=$(GDBINIT_FILE) + + + + +# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB. +COFFCONVERT = $(OBJCOPY) --debugging +COFFCONVERT += --change-section-address .data-0x800000 +COFFCONVERT += --change-section-address .bss-0x800000 +COFFCONVERT += --change-section-address .noinit-0x800000 +COFFCONVERT += --change-section-address .eeprom-0x810000 + + + +coff: $(BUILD_DIR)/$(TARGET).elf + @$(SECHO) $(MSG_COFF) $(BUILD_DIR)/$(TARGET).cof + $(COFFCONVERT) -O coff-avr $< $(BUILD_DIR)/$(TARGET).cof + + +extcoff: $(BUILD_DIR)/$(TARGET).elf + @$(SECHO) $(MSG_EXTENDED_COFF) $(BUILD_DIR)/$(TARGET).cof + $(COFFCONVERT) -O coff-ext-avr $< $(BUILD_DIR)/$(TARGET).cof + diff --git a/tmk_core/chibios.mk b/tmk_core/chibios.mk new file mode 100644 index 0000000000..0abb933a8d --- /dev/null +++ b/tmk_core/chibios.mk @@ -0,0 +1,154 @@ +# Hey Emacs, this is a -*- makefile -*- +############################################################################## +# 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 = $(TOP_DIR)/lib/chibios +CHIBIOS_CONTRIB = $(TOP_DIR)/lib/chibios-contrib +# Startup files. Try a few different locations, for compability with old versions and +# for things hardware in the contrib repository +STARTUP_MK = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC/mk/startup_$(MCU_STARTUP).mk +ifeq ("$(wildcard $(STARTUP_MK))","") + STARTUP_MK = $(CHIBIOS)/os/common/startup/ARMCMx/compilers/GCC/mk/startup_$(MCU_STARTUP).mk + ifeq ("$(wildcard $(STARTUP_MK))","") + STARTUP_MK = $(CHIBIOS_CONTRIB)/os/common/startup/ARMCMx/compilers/GCC/mk/startup_$(MCU_STARTUP).mk + endif +endif +include $(STARTUP_MK) +# HAL-OSAL files (optional). +include $(CHIBIOS)/os/hal/hal.mk + +PLATFORM_MK = $(CHIBIOS)/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)/platform.mk +ifeq ("$(wildcard $(PLATFORM_MK))","") +PLATFORM_MK = $(CHIBIOS_CONTRIB)/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)/platform.mk +endif +include $(PLATFORM_MK) + + +BOARD_MK = $(KEYBOARD_PATH)/boards/$(BOARD)/board.mk +ifeq ("$(wildcard $(BOARD_MK))","") + BOARD_MK = $(CHIBIOS)/os/hal/boards/$(BOARD)/board.mk + ifeq ("$(wildcard $(BOARD_MK))","") + BOARD_MK = $(CHIBIOS_CONTRIB)/os/hal/boards/$(BOARD)/board.mk + endif +endif +include $(BOARD_MK) +include $(CHIBIOS)/os/hal/osal/rt/osal.mk +# RTOS files (optional). +include $(CHIBIOS)/os/rt/rt.mk +# Compability with old version +PORT_V = $(CHIBIOS)/os/rt/ports/ARMCMx/compilers/GCC/mk/port_v$(ARMV)m.mk +ifeq ("$(wildcard $(PORT_V))","") +PORT_V = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC/mk/port_v$(ARMV)m.mk +endif +include $(PORT_V) +# Other files (optional). +include $(CHIBIOS)/os/hal/lib/streams/streams.mk + +RULESPATH = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC +ifeq ("$(wildcard $(RULESPATH)/rules.mk)","") +RULESPATH = $(CHIBIOS)/os/common/startup/ARMCMx/compilers/GCC +endif + +# Define linker script file here +ifneq ("$(wildcard $(KEYBOARD_PATH)/ld/$(MCU_LDSCRIPT).ld)","") +LDSCRIPT = $(KEYBOARD_PATH)/ld/$(MCU_LDSCRIPT).ld +else +LDSCRIPT = $(STARTUPLD)/$(MCU_LDSCRIPT).ld +endif + +CHIBISRC = $(STARTUPSRC) \ + $(KERNSRC) \ + $(PORTSRC) \ + $(OSALSRC) \ + $(HALSRC) \ + $(PLATFORMSRC) \ + $(BOARDSRC) \ + $(STREAMSSRC) \ + $(STARTUPASM) \ + $(PORTASM) \ + $(OSALASM) + +SRC += $(patsubst $(TOP_DIR)/%,%,$(CHIBISRC)) + +EXTRAINCDIRS += $(CHIBIOS)/os/license \ + $(STARTUPINC) $(KERNINC) $(PORTINC) $(OSALINC) \ + $(HALINC) $(PLATFORMINC) $(BOARDINC) $(TESTINC) \ + $(STREAMSINC) $(CHIBIOS)/os/various + +# +# Project, sources and paths +############################################################################## + + +############################################################################## +# Compiler settings +# +CC = arm-none-eabi-gcc +OBJCOPY = arm-none-eabi-objcopy +OBJDUMP = arm-none-eabi-objdump +SIZE = arm-none-eabi-size +AR = arm-none-eabi-ar +NM = arm-none-eabi-nm +HEX = $(OBJCOPY) -O $(FORMAT) +EEP = + +THUMBFLAGS = -DTHUMB_PRESENT -mno-thumb-interwork -DTHUMB_NO_INTERWORKING -mthumb -DTHUMB + +COMPILEFLAGS += -fomit-frame-pointer +COMPILEFLAGS += -falign-functions=16 +COMPILEFLAGS += -ffunction-sections +COMPILEFLAGS += -fdata-sections +COMPILEFLAGS += -fno-common +COMPILEFLAGS += $(THUMBFLAGS) + +CFLAGS += $(COMPILEFLAGS) + +ASFLAGS += $(THUMBFLAGS) + +CPPFLAGS += $(COMPILEFLAGS) +CPPFLAGS += -fno-rtti + +LDFLAGS +=-Wl,--gc-sections +LDFLAGS += -mno-thumb-interwork -mthumb +LDSYMBOLS =,--defsym=__process_stack_size__=$(USE_PROCESS_STACKSIZE) +LDSYMBOLS :=$(LDSYMBOLS),--defsym=__main_stack_size__=$(USE_EXCEPTIONS_STACKSIZE) +LDFLAGS += -Wl,--script=$(LDSCRIPT)$(LDSYMBOLS) + +OPT_DEFS += -DPROTOCOL_CHIBIOS + +MCUFLAGS = -mcpu=$(MCU) + +DEBUG = gdb + +# Define ASM defines here +# bootloader definitions may be used in the startup .s file +ifneq ("$(wildcard $(KEYBOARD_PATH)/bootloader_defs.h)","") + OPT_DEFS += -include $(KEYBOARD_PATH)/bootloader_defs.h +else ifneq ("$(wildcard $(KEYBOARD_PATH)/boards/$(BOARD)/bootloader_defs.h)","") + OPT_DEFS += -include $(KEYBOARD_PATH)/boards/$(BOARD)/bootloader_defs.h +endif + +# List any extra directories to look for libraries here. +EXTRALIBDIRS = $(RULESPATH)/ld \ No newline at end of file diff --git a/tmk_core/common.mk b/tmk_core/common.mk index f2a22e4f8c..d71fba9bc1 100644 --- a/tmk_core/common.mk +++ b/tmk_core/common.mk @@ -1,4 +1,10 @@ COMMON_DIR = common +ifeq ($(PLATFORM),AVR) + PLATFORM_COMMON_DIR = $(COMMON_DIR)/avr +else ifeq ($(PLATFORM),CHIBIOS) + PLATFORM_COMMON_DIR = $(COMMON_DIR)/chibios +endif + SRC += $(COMMON_DIR)/host.c \ $(COMMON_DIR)/keyboard.c \ $(COMMON_DIR)/action.c \ @@ -9,21 +15,29 @@ SRC += $(COMMON_DIR)/host.c \ $(COMMON_DIR)/print.c \ $(COMMON_DIR)/debug.c \ $(COMMON_DIR)/util.c \ - $(COMMON_DIR)/avr/suspend.c \ - $(COMMON_DIR)/avr/xprintf.S \ - $(COMMON_DIR)/avr/timer.c \ - $(COMMON_DIR)/avr/bootloader.c + $(COMMON_DIR)/eeconfig.c \ + $(PLATFORM_COMMON_DIR)/suspend.c \ + $(PLATFORM_COMMON_DIR)/timer.c \ + $(PLATFORM_COMMON_DIR)/bootloader.c \ + +ifeq ($(PLATFORM),AVR) + SRC += $(PLATFORM_COMMON_DIR)/xprintf.S +endif + +ifeq ($(PLATFORM),CHIBIOS) + SRC += $(PLATFORM_COMMON_DIR)/printf.c + SRC += $(PLATFORM_COMMON_DIR)/eeprom.c +endif + # Option modules ifeq ($(strip $(BOOTMAGIC_ENABLE)), yes) OPT_DEFS += -DBOOTMAGIC_ENABLE SRC += $(COMMON_DIR)/bootmagic.c - SRC += $(COMMON_DIR)/avr/eeconfig.c else OPT_DEFS += -DMAGIC_ENABLE SRC += $(COMMON_DIR)/magic.c - SRC += $(COMMON_DIR)/avr/eeconfig.c endif ifeq ($(strip $(MOUSEKEY_ENABLE)), yes) @@ -57,14 +71,13 @@ ifeq ($(strip $(USB_6KRO_ENABLE)), yes) endif ifeq ($(strip $(SLEEP_LED_ENABLE)), yes) - SRC += $(COMMON_DIR)/sleep_led.c + SRC += $(PLATFORM_COMMON_DIR)/sleep_led.c OPT_DEFS += -DSLEEP_LED_ENABLE OPT_DEFS += -DNO_SUSPEND_POWER_DOWN endif ifeq ($(strip $(BACKLIGHT_ENABLE)), yes) SRC += $(COMMON_DIR)/backlight.c - SRC += $(COMMON_DIR)/avr/eeconfig.c OPT_DEFS += -DBACKLIGHT_ENABLE endif @@ -87,6 +100,13 @@ endif # Version string OPT_DEFS += -DVERSION=$(shell (git describe --always --dirty || echo 'unknown') 2> /dev/null) +# Bootloader address +ifdef STM32_BOOTLOADER_ADDRESS + OPT_DEFS += -DSTM32_BOOTLOADER_ADDRESS=$(STM32_BOOTLOADER_ADDRESS) +endif # Search Path VPATH += $(TMK_PATH)/$(COMMON_DIR) +ifeq ($(PLATFORM),CHIBIOS) +VPATH += $(TMK_PATH)/$(COMMON_DIR)/chibios +endif \ No newline at end of file diff --git a/tmk_core/common/action_tapping.c b/tmk_core/common/action_tapping.c index ff78d7f2ab..e16e11be7f 100644 --- a/tmk_core/common/action_tapping.c +++ b/tmk_core/common/action_tapping.c @@ -257,7 +257,7 @@ bool process_tapping(keyrecord_t *keyp) return true; } } else { - if (!IS_NOEVENT(event)) debug("Tapping: other key just after tap.\n"); + if (!IS_NOEVENT(event)) debug("Tapping: other key just after tap.\n") {}; process_record(keyp); return true; } diff --git a/tmk_core/common/avr/eeconfig.c b/tmk_core/common/avr/eeconfig.c deleted file mode 100644 index 656938fb33..0000000000 --- a/tmk_core/common/avr/eeconfig.c +++ /dev/null @@ -1,56 +0,0 @@ -#include -#include -#include -#include "eeconfig.h" - -void eeconfig_init(void) -{ - eeprom_update_word(EECONFIG_MAGIC, EECONFIG_MAGIC_NUMBER); - eeprom_update_byte(EECONFIG_DEBUG, 0); - eeprom_update_byte(EECONFIG_DEFAULT_LAYER, 0); - eeprom_update_byte(EECONFIG_KEYMAP, 0); - eeprom_update_byte(EECONFIG_MOUSEKEY_ACCEL, 0); -#ifdef BACKLIGHT_ENABLE - eeprom_update_byte(EECONFIG_BACKLIGHT, 0); -#endif -#ifdef AUDIO_ENABLE - eeprom_update_byte(EECONFIG_AUDIO, 0xFF); // On by default -#endif -#ifdef RGBLIGHT_ENABLE - eeprom_update_dword(EECONFIG_RGBLIGHT, 0); -#endif -} - -void eeconfig_enable(void) -{ - eeprom_update_word(EECONFIG_MAGIC, EECONFIG_MAGIC_NUMBER); -} - -void eeconfig_disable(void) -{ - eeprom_update_word(EECONFIG_MAGIC, 0xFFFF); -} - -bool eeconfig_is_enabled(void) -{ - return (eeprom_read_word(EECONFIG_MAGIC) == EECONFIG_MAGIC_NUMBER); -} - -uint8_t eeconfig_read_debug(void) { return eeprom_read_byte(EECONFIG_DEBUG); } -void eeconfig_update_debug(uint8_t val) { eeprom_update_byte(EECONFIG_DEBUG, val); } - -uint8_t eeconfig_read_default_layer(void) { return eeprom_read_byte(EECONFIG_DEFAULT_LAYER); } -void eeconfig_update_default_layer(uint8_t val) { eeprom_update_byte(EECONFIG_DEFAULT_LAYER, val); } - -uint8_t eeconfig_read_keymap(void) { return eeprom_read_byte(EECONFIG_KEYMAP); } -void eeconfig_update_keymap(uint8_t val) { eeprom_update_byte(EECONFIG_KEYMAP, val); } - -#ifdef BACKLIGHT_ENABLE -uint8_t eeconfig_read_backlight(void) { return eeprom_read_byte(EECONFIG_BACKLIGHT); } -void eeconfig_update_backlight(uint8_t val) { eeprom_update_byte(EECONFIG_BACKLIGHT, val); } -#endif - -#ifdef AUDIO_ENABLE -uint8_t eeconfig_read_audio(void) { return eeprom_read_byte(EECONFIG_AUDIO); } -void eeconfig_update_audio(uint8_t val) { eeprom_update_byte(EECONFIG_AUDIO, val); } -#endif diff --git a/tmk_core/common/avr/sleep_led.c b/tmk_core/common/avr/sleep_led.c new file mode 100644 index 0000000000..dab3eb0f3c --- /dev/null +++ b/tmk_core/common/avr/sleep_led.c @@ -0,0 +1,95 @@ +#include +#include +#include +#include +#include "led.h" +#include "sleep_led.h" + +/* Software PWM + * ______ ______ __ + * | ON |___OFF___| ON |___OFF___| .... + * |<-------------->|<-------------->|<- .... + * PWM period PWM period + * + * 256 interrupts/period[resolution] + * 64 periods/second[frequency] + * 256*64 interrupts/second + * F_CPU/(256*64) clocks/interrupt + */ +#define SLEEP_LED_TIMER_TOP F_CPU/(256*64) + +void sleep_led_init(void) +{ + /* Timer1 setup */ + /* CTC mode */ + TCCR1B |= _BV(WGM12); + /* Clock selelct: clk/1 */ + TCCR1B |= _BV(CS10); + /* Set TOP value */ + uint8_t sreg = SREG; + cli(); + OCR1AH = (SLEEP_LED_TIMER_TOP>>8)&0xff; + OCR1AL = SLEEP_LED_TIMER_TOP&0xff; + SREG = sreg; +} + +void sleep_led_enable(void) +{ + /* Enable Compare Match Interrupt */ + TIMSK1 |= _BV(OCIE1A); +} + +void sleep_led_disable(void) +{ + /* Disable Compare Match Interrupt */ + TIMSK1 &= ~_BV(OCIE1A); +} + +void sleep_led_toggle(void) +{ + /* Disable Compare Match Interrupt */ + TIMSK1 ^= _BV(OCIE1A); +} + + +/* Breathing Sleep LED brighness(PWM On period) table + * (64[steps] * 4[duration]) / 64[PWM periods/s] = 4 second breath cycle + * + * http://www.wolframalpha.com/input/?i=%28sin%28+x%2F64*pi%29**8+*+255%2C+x%3D0+to+63 + * (0..63).each {|x| p ((sin(x/64.0*PI)**8)*255).to_i } + */ +static const uint8_t breathing_table[64] PROGMEM = { +0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 4, 6, 10, +15, 23, 32, 44, 58, 74, 93, 113, 135, 157, 179, 199, 218, 233, 245, 252, +255, 252, 245, 233, 218, 199, 179, 157, 135, 113, 93, 74, 58, 44, 32, 23, +15, 10, 6, 4, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +ISR(TIMER1_COMPA_vect) +{ + /* Software PWM + * timer:1111 1111 1111 1111 + * \_____/\/ \_______/____ count(0-255) + * \ \______________ duration of step(4) + * \__________________ index of step table(0-63) + */ + static union { + uint16_t row; + struct { + uint8_t count:8; + uint8_t duration:2; + uint8_t index:6; + } pwm; + } timer = { .row = 0 }; + + timer.row++; + + // LED on + if (timer.pwm.count == 0) { + led_set(1< #include -#include +#include "wait.h" #include "matrix.h" #include "bootloader.h" #include "debug.h" @@ -10,6 +10,7 @@ #include "eeconfig.h" #include "bootmagic.h" +keymap_config_t keymap_config; void bootmagic(void) { @@ -19,9 +20,9 @@ void bootmagic(void) } /* do scans in case of bounce */ - print("boogmagic scan: ... "); + print("bootmagic scan: ... "); uint8_t scan = 100; - while (scan--) { matrix_scan(); _delay_ms(10); } + while (scan--) { matrix_scan(); wait_ms(10); } print("done.\n"); /* bootmagic skip */ diff --git a/tmk_core/common/chibios/bootloader.c b/tmk_core/common/chibios/bootloader.c new file mode 100644 index 0000000000..8a533ab6f6 --- /dev/null +++ b/tmk_core/common/chibios/bootloader.c @@ -0,0 +1,47 @@ +#include "bootloader.h" + +#include "ch.h" +#include "hal.h" + +#ifdef STM32_BOOTLOADER_ADDRESS +/* STM32 */ + +#if defined(STM32F0XX) +/* This code should be checked whether it runs correctly on platforms */ +#define SYMVAL(sym) (uint32_t)(((uint8_t *)&(sym)) - ((uint8_t *)0)) +extern uint32_t __ram0_end__; + +void bootloader_jump(void) { + *((unsigned long *)(SYMVAL(__ram0_end__) - 4)) = 0xDEADBEEF; // set magic flag => reset handler will jump into boot loader + NVIC_SystemReset(); +} + +#else /* defined(STM32F0XX) */ +#error Check that the bootloader code works on your platform and add it to bootloader.c! +#endif /* defined(STM32F0XX) */ + +#elif defined(KL2x) || defined(K20x) /* STM32_BOOTLOADER_ADDRESS */ +/* Kinetis */ + +#if defined(KIIBOHD_BOOTLOADER) +/* Kiibohd Bootloader (MCHCK and Infinity KB) */ +#define SCB_AIRCR_VECTKEY_WRITEMAGIC 0x05FA0000 +const uint8_t sys_reset_to_loader_magic[] = "\xff\x00\x7fRESET TO LOADER\x7f\x00\xff"; +void bootloader_jump(void) { + __builtin_memcpy((void *)VBAT, (const void *)sys_reset_to_loader_magic, sizeof(sys_reset_to_loader_magic)); + // request reset + SCB->AIRCR = SCB_AIRCR_VECTKEY_WRITEMAGIC | SCB_AIRCR_SYSRESETREQ_Msk; +} + +#else /* defined(KIIBOHD_BOOTLOADER) */ +/* Default for Kinetis - expecting an ARM Teensy */ +void bootloader_jump(void) { + chThdSleepMilliseconds(100); + __BKPT(0); +} +#endif /* defined(KIIBOHD_BOOTLOADER) */ + +#else /* neither STM32 nor KINETIS */ +__attribute__((weak)) +void bootloader_jump(void) {} +#endif \ No newline at end of file diff --git a/tmk_core/common/chibios/eeprom.c b/tmk_core/common/chibios/eeprom.c new file mode 100644 index 0000000000..5ff8ee86f4 --- /dev/null +++ b/tmk_core/common/chibios/eeprom.c @@ -0,0 +1,588 @@ +#include "ch.h" +#include "hal.h" + +#include "eeconfig.h" + +/*************************************/ +/* Hardware backend */ +/* */ +/* Code from PJRC/Teensyduino */ +/*************************************/ + +/* Teensyduino Core Library + * http://www.pjrc.com/teensy/ + * Copyright (c) 2013 PJRC.COM, LLC. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * 1. The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * 2. If the Software is incorporated into a build system that allows + * selection among a list of target devices, then similar target + * devices manufactured by PJRC.COM must be included in the list of + * target devices and selectable in the same manner. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + + +#if defined(K20x) /* chip selection */ +/* Teensy 3.0, 3.1, 3.2; mchck; infinity keyboard */ + +// The EEPROM is really RAM with a hardware-based backup system to +// flash memory. Selecting a smaller size EEPROM allows more wear +// leveling, for higher write endurance. If you edit this file, +// set this to the smallest size your application can use. Also, +// due to Freescale's implementation, writing 16 or 32 bit words +// (aligned to 2 or 4 byte boundaries) has twice the endurance +// compared to writing 8 bit bytes. +// +#define EEPROM_SIZE 32 + +// Writing unaligned 16 or 32 bit data is handled automatically when +// this is defined, but at a cost of extra code size. Without this, +// any unaligned write will cause a hard fault exception! If you're +// absolutely sure all 16 and 32 bit writes will be aligned, you can +// remove the extra unnecessary code. +// +#define HANDLE_UNALIGNED_WRITES + +// Minimum EEPROM Endurance +// ------------------------ +#if (EEPROM_SIZE == 2048) // 35000 writes/byte or 70000 writes/word + #define EEESIZE 0x33 +#elif (EEPROM_SIZE == 1024) // 75000 writes/byte or 150000 writes/word + #define EEESIZE 0x34 +#elif (EEPROM_SIZE == 512) // 155000 writes/byte or 310000 writes/word + #define EEESIZE 0x35 +#elif (EEPROM_SIZE == 256) // 315000 writes/byte or 630000 writes/word + #define EEESIZE 0x36 +#elif (EEPROM_SIZE == 128) // 635000 writes/byte or 1270000 writes/word + #define EEESIZE 0x37 +#elif (EEPROM_SIZE == 64) // 1275000 writes/byte or 2550000 writes/word + #define EEESIZE 0x38 +#elif (EEPROM_SIZE == 32) // 2555000 writes/byte or 5110000 writes/word + #define EEESIZE 0x39 +#endif + +void eeprom_initialize(void) +{ + uint32_t count=0; + uint16_t do_flash_cmd[] = { + 0xf06f, 0x037f, 0x7003, 0x7803, + 0xf013, 0x0f80, 0xd0fb, 0x4770}; + uint8_t status; + + if (FTFL->FCNFG & FTFL_FCNFG_RAMRDY) { + // FlexRAM is configured as traditional RAM + // We need to reconfigure for EEPROM usage + FTFL->FCCOB0 = 0x80; // PGMPART = Program Partition Command + FTFL->FCCOB4 = EEESIZE; // EEPROM Size + FTFL->FCCOB5 = 0x03; // 0K for Dataflash, 32K for EEPROM backup + __disable_irq(); + // do_flash_cmd() must execute from RAM. Luckily the C syntax is simple... + (*((void (*)(volatile uint8_t *))((uint32_t)do_flash_cmd | 1)))(&(FTFL->FSTAT)); + __enable_irq(); + status = FTFL->FSTAT; + if (status & (FTFL_FSTAT_RDCOLERR|FTFL_FSTAT_ACCERR|FTFL_FSTAT_FPVIOL)) { + FTFL->FSTAT = (status & (FTFL_FSTAT_RDCOLERR|FTFL_FSTAT_ACCERR|FTFL_FSTAT_FPVIOL)); + return; // error + } + } + // wait for eeprom to become ready (is this really necessary?) + while (!(FTFL->FCNFG & FTFL_FCNFG_EEERDY)) { + if (++count > 20000) break; + } +} + +#define FlexRAM ((uint8_t *)0x14000000) + +uint8_t eeprom_read_byte(const uint8_t *addr) +{ + uint32_t offset = (uint32_t)addr; + if (offset >= EEPROM_SIZE) return 0; + if (!(FTFL->FCNFG & FTFL_FCNFG_EEERDY)) eeprom_initialize(); + return FlexRAM[offset]; +} + +uint16_t eeprom_read_word(const uint16_t *addr) +{ + uint32_t offset = (uint32_t)addr; + if (offset >= EEPROM_SIZE-1) return 0; + if (!(FTFL->FCNFG & FTFL_FCNFG_EEERDY)) eeprom_initialize(); + return *(uint16_t *)(&FlexRAM[offset]); +} + +uint32_t eeprom_read_dword(const uint32_t *addr) +{ + uint32_t offset = (uint32_t)addr; + if (offset >= EEPROM_SIZE-3) return 0; + if (!(FTFL->FCNFG & FTFL_FCNFG_EEERDY)) eeprom_initialize(); + return *(uint32_t *)(&FlexRAM[offset]); +} + +void eeprom_read_block(void *buf, const void *addr, uint32_t len) +{ + uint32_t offset = (uint32_t)addr; + uint8_t *dest = (uint8_t *)buf; + uint32_t end = offset + len; + + if (!(FTFL->FCNFG & FTFL_FCNFG_EEERDY)) eeprom_initialize(); + if (end > EEPROM_SIZE) end = EEPROM_SIZE; + while (offset < end) { + *dest++ = FlexRAM[offset++]; + } +} + +int eeprom_is_ready(void) +{ + return (FTFL->FCNFG & FTFL_FCNFG_EEERDY) ? 1 : 0; +} + +static void flexram_wait(void) +{ + while (!(FTFL->FCNFG & FTFL_FCNFG_EEERDY)) { + // TODO: timeout + } +} + +void eeprom_write_byte(uint8_t *addr, uint8_t value) +{ + uint32_t offset = (uint32_t)addr; + + if (offset >= EEPROM_SIZE) return; + if (!(FTFL->FCNFG & FTFL_FCNFG_EEERDY)) eeprom_initialize(); + if (FlexRAM[offset] != value) { + FlexRAM[offset] = value; + flexram_wait(); + } +} + +void eeprom_write_word(uint16_t *addr, uint16_t value) +{ + uint32_t offset = (uint32_t)addr; + + if (offset >= EEPROM_SIZE-1) return; + if (!(FTFL->FCNFG & FTFL_FCNFG_EEERDY)) eeprom_initialize(); +#ifdef HANDLE_UNALIGNED_WRITES + if ((offset & 1) == 0) { +#endif + if (*(uint16_t *)(&FlexRAM[offset]) != value) { + *(uint16_t *)(&FlexRAM[offset]) = value; + flexram_wait(); + } +#ifdef HANDLE_UNALIGNED_WRITES + } else { + if (FlexRAM[offset] != value) { + FlexRAM[offset] = value; + flexram_wait(); + } + if (FlexRAM[offset + 1] != (value >> 8)) { + FlexRAM[offset + 1] = value >> 8; + flexram_wait(); + } + } +#endif +} + +void eeprom_write_dword(uint32_t *addr, uint32_t value) +{ + uint32_t offset = (uint32_t)addr; + + if (offset >= EEPROM_SIZE-3) return; + if (!(FTFL->FCNFG & FTFL_FCNFG_EEERDY)) eeprom_initialize(); +#ifdef HANDLE_UNALIGNED_WRITES + switch (offset & 3) { + case 0: +#endif + if (*(uint32_t *)(&FlexRAM[offset]) != value) { + *(uint32_t *)(&FlexRAM[offset]) = value; + flexram_wait(); + } + return; +#ifdef HANDLE_UNALIGNED_WRITES + case 2: + if (*(uint16_t *)(&FlexRAM[offset]) != value) { + *(uint16_t *)(&FlexRAM[offset]) = value; + flexram_wait(); + } + if (*(uint16_t *)(&FlexRAM[offset + 2]) != (value >> 16)) { + *(uint16_t *)(&FlexRAM[offset + 2]) = value >> 16; + flexram_wait(); + } + return; + default: + if (FlexRAM[offset] != value) { + FlexRAM[offset] = value; + flexram_wait(); + } + if (*(uint16_t *)(&FlexRAM[offset + 1]) != (value >> 8)) { + *(uint16_t *)(&FlexRAM[offset + 1]) = value >> 8; + flexram_wait(); + } + if (FlexRAM[offset + 3] != (value >> 24)) { + FlexRAM[offset + 3] = value >> 24; + flexram_wait(); + } + } +#endif +} + +void eeprom_write_block(const void *buf, void *addr, uint32_t len) +{ + uint32_t offset = (uint32_t)addr; + const uint8_t *src = (const uint8_t *)buf; + + if (offset >= EEPROM_SIZE) return; + if (!(FTFL->FCNFG & FTFL_FCNFG_EEERDY)) eeprom_initialize(); + if (len >= EEPROM_SIZE) len = EEPROM_SIZE; + if (offset + len >= EEPROM_SIZE) len = EEPROM_SIZE - offset; + while (len > 0) { + uint32_t lsb = offset & 3; + if (lsb == 0 && len >= 4) { + // write aligned 32 bits + uint32_t val32; + val32 = *src++; + val32 |= (*src++ << 8); + val32 |= (*src++ << 16); + val32 |= (*src++ << 24); + if (*(uint32_t *)(&FlexRAM[offset]) != val32) { + *(uint32_t *)(&FlexRAM[offset]) = val32; + flexram_wait(); + } + offset += 4; + len -= 4; + } else if ((lsb == 0 || lsb == 2) && len >= 2) { + // write aligned 16 bits + uint16_t val16; + val16 = *src++; + val16 |= (*src++ << 8); + if (*(uint16_t *)(&FlexRAM[offset]) != val16) { + *(uint16_t *)(&FlexRAM[offset]) = val16; + flexram_wait(); + } + offset += 2; + len -= 2; + } else { + // write 8 bits + uint8_t val8 = *src++; + if (FlexRAM[offset] != val8) { + FlexRAM[offset] = val8; + flexram_wait(); + } + offset++; + len--; + } + } +} + +/* +void do_flash_cmd(volatile uint8_t *fstat) +{ + *fstat = 0x80; + while ((*fstat & 0x80) == 0) ; // wait +} +00000000 : + 0: f06f 037f mvn.w r3, #127 ; 0x7f + 4: 7003 strb r3, [r0, #0] + 6: 7803 ldrb r3, [r0, #0] + 8: f013 0f80 tst.w r3, #128 ; 0x80 + c: d0fb beq.n 6 + e: 4770 bx lr +*/ + +#elif defined(KL2x) /* chip selection */ +/* Teensy LC (emulated) */ + +#define SYMVAL(sym) (uint32_t)(((uint8_t *)&(sym)) - ((uint8_t *)0)) + +extern uint32_t __eeprom_workarea_start__; +extern uint32_t __eeprom_workarea_end__; + +#define EEPROM_SIZE 128 + +static uint32_t flashend = 0; + +void eeprom_initialize(void) +{ + const uint16_t *p = (uint16_t *)SYMVAL(__eeprom_workarea_start__); + + do { + if (*p++ == 0xFFFF) { + flashend = (uint32_t)(p - 2); + return; + } + } while (p < (uint16_t *)SYMVAL(__eeprom_workarea_end__)); + flashend = (uint32_t)((uint16_t *)SYMVAL(__eeprom_workarea_end__) - 1); +} + +uint8_t eeprom_read_byte(const uint8_t *addr) +{ + uint32_t offset = (uint32_t)addr; + const uint16_t *p = (uint16_t *)SYMVAL(__eeprom_workarea_start__); + const uint16_t *end = (const uint16_t *)((uint32_t)flashend); + uint16_t val; + uint8_t data=0xFF; + + if (!end) { + eeprom_initialize(); + end = (const uint16_t *)((uint32_t)flashend); + } + if (offset < EEPROM_SIZE) { + while (p <= end) { + val = *p++; + if ((val & 255) == offset) data = val >> 8; + } + } + return data; +} + +static void flash_write(const uint16_t *code, uint32_t addr, uint32_t data) +{ + // with great power comes great responsibility.... + uint32_t stat; + *(uint32_t *)&(FTFA->FCCOB3) = 0x06000000 | (addr & 0x00FFFFFC); + *(uint32_t *)&(FTFA->FCCOB7) = data; + __disable_irq(); + (*((void (*)(volatile uint8_t *))((uint32_t)code | 1)))(&(FTFA->FSTAT)); + __enable_irq(); + stat = FTFA->FSTAT & (FTFA_FSTAT_RDCOLERR|FTFA_FSTAT_ACCERR|FTFA_FSTAT_FPVIOL); + if (stat) { + FTFA->FSTAT = stat; + } + MCM->PLACR |= MCM_PLACR_CFCC; +} + +void eeprom_write_byte(uint8_t *addr, uint8_t data) +{ + uint32_t offset = (uint32_t)addr; + const uint16_t *p, *end = (const uint16_t *)((uint32_t)flashend); + uint32_t i, val, flashaddr; + uint16_t do_flash_cmd[] = { + 0x2380, 0x7003, 0x7803, 0xb25b, 0x2b00, 0xdafb, 0x4770}; + uint8_t buf[EEPROM_SIZE]; + + if (offset >= EEPROM_SIZE) return; + if (!end) { + eeprom_initialize(); + end = (const uint16_t *)((uint32_t)flashend); + } + if (++end < (uint16_t *)SYMVAL(__eeprom_workarea_end__)) { + val = (data << 8) | offset; + flashaddr = (uint32_t)end; + flashend = flashaddr; + if ((flashaddr & 2) == 0) { + val |= 0xFFFF0000; + } else { + val <<= 16; + val |= 0x0000FFFF; + } + flash_write(do_flash_cmd, flashaddr, val); + } else { + for (i=0; i < EEPROM_SIZE; i++) { + buf[i] = 0xFF; + } + val = 0; + for (p = (uint16_t *)SYMVAL(__eeprom_workarea_start__); p < (uint16_t *)SYMVAL(__eeprom_workarea_end__); p++) { + val = *p; + if ((val & 255) < EEPROM_SIZE) { + buf[val & 255] = val >> 8; + } + } + buf[offset] = data; + for (flashaddr=(uint32_t)(uint16_t *)SYMVAL(__eeprom_workarea_start__); flashaddr < (uint32_t)(uint16_t *)SYMVAL(__eeprom_workarea_end__); flashaddr += 1024) { + *(uint32_t *)&(FTFA->FCCOB3) = 0x09000000 | flashaddr; + __disable_irq(); + (*((void (*)(volatile uint8_t *))((uint32_t)do_flash_cmd | 1)))(&(FTFA->FSTAT)); + __enable_irq(); + val = FTFA->FSTAT & (FTFA_FSTAT_RDCOLERR|FTFA_FSTAT_ACCERR|FTFA_FSTAT_FPVIOL);; + if (val) FTFA->FSTAT = val; + MCM->PLACR |= MCM_PLACR_CFCC; + } + flashaddr=(uint32_t)(uint16_t *)SYMVAL(__eeprom_workarea_start__); + for (i=0; i < EEPROM_SIZE; i++) { + if (buf[i] == 0xFF) continue; + if ((flashaddr & 2) == 0) { + val = (buf[i] << 8) | i; + } else { + val = val | (buf[i] << 24) | (i << 16); + flash_write(do_flash_cmd, flashaddr, val); + } + flashaddr += 2; + } + flashend = flashaddr; + if ((flashaddr & 2)) { + val |= 0xFFFF0000; + flash_write(do_flash_cmd, flashaddr, val); + } + } +} + +/* +void do_flash_cmd(volatile uint8_t *fstat) +{ + *fstat = 0x80; + while ((*fstat & 0x80) == 0) ; // wait +} +00000000 : + 0: 2380 movs r3, #128 ; 0x80 + 2: 7003 strb r3, [r0, #0] + 4: 7803 ldrb r3, [r0, #0] + 6: b25b sxtb r3, r3 + 8: 2b00 cmp r3, #0 + a: dafb bge.n 4 + c: 4770 bx lr +*/ + + +uint16_t eeprom_read_word(const uint16_t *addr) +{ + const uint8_t *p = (const uint8_t *)addr; + return eeprom_read_byte(p) | (eeprom_read_byte(p+1) << 8); +} + +uint32_t eeprom_read_dword(const uint32_t *addr) +{ + const uint8_t *p = (const uint8_t *)addr; + return eeprom_read_byte(p) | (eeprom_read_byte(p+1) << 8) + | (eeprom_read_byte(p+2) << 16) | (eeprom_read_byte(p+3) << 24); +} + +void eeprom_read_block(void *buf, const void *addr, uint32_t len) +{ + const uint8_t *p = (const uint8_t *)addr; + uint8_t *dest = (uint8_t *)buf; + while (len--) { + *dest++ = eeprom_read_byte(p++); + } +} + +int eeprom_is_ready(void) +{ + return 1; +} + +void eeprom_write_word(uint16_t *addr, uint16_t value) +{ + uint8_t *p = (uint8_t *)addr; + eeprom_write_byte(p++, value); + eeprom_write_byte(p, value >> 8); +} + +void eeprom_write_dword(uint32_t *addr, uint32_t value) +{ + uint8_t *p = (uint8_t *)addr; + eeprom_write_byte(p++, value); + eeprom_write_byte(p++, value >> 8); + eeprom_write_byte(p++, value >> 16); + eeprom_write_byte(p, value >> 24); +} + +void eeprom_write_block(const void *buf, void *addr, uint32_t len) +{ + uint8_t *p = (uint8_t *)addr; + const uint8_t *src = (const uint8_t *)buf; + while (len--) { + eeprom_write_byte(p++, *src++); + } +} + +#else +// No EEPROM supported, so emulate it + +#define EEPROM_SIZE 32 +static uint8_t buffer[EEPROM_SIZE]; + +uint8_t eeprom_read_byte(const uint8_t *addr) { + uint32_t offset = (uint32_t)addr; + return buffer[offset]; +} + +void eeprom_write_byte(uint8_t *addr, uint8_t value) { + uint32_t offset = (uint32_t)addr; + buffer[offset] = value; +} + +uint16_t eeprom_read_word(const uint16_t *addr) { + const uint8_t *p = (const uint8_t *)addr; + return eeprom_read_byte(p) | (eeprom_read_byte(p+1) << 8); +} + +uint32_t eeprom_read_dword(const uint32_t *addr) { + const uint8_t *p = (const uint8_t *)addr; + return eeprom_read_byte(p) | (eeprom_read_byte(p+1) << 8) + | (eeprom_read_byte(p+2) << 16) | (eeprom_read_byte(p+3) << 24); +} + +void eeprom_read_block(void *buf, const void *addr, uint32_t len) { + const uint8_t *p = (const uint8_t *)addr; + uint8_t *dest = (uint8_t *)buf; + while (len--) { + *dest++ = eeprom_read_byte(p++); + } +} + +void eeprom_write_word(uint16_t *addr, uint16_t value) { + uint8_t *p = (uint8_t *)addr; + eeprom_write_byte(p++, value); + eeprom_write_byte(p, value >> 8); +} + +void eeprom_write_dword(uint32_t *addr, uint32_t value) { + uint8_t *p = (uint8_t *)addr; + eeprom_write_byte(p++, value); + eeprom_write_byte(p++, value >> 8); + eeprom_write_byte(p++, value >> 16); + eeprom_write_byte(p, value >> 24); +} + +void eeprom_write_block(const void *buf, void *addr, uint32_t len) { + uint8_t *p = (uint8_t *)addr; + const uint8_t *src = (const uint8_t *)buf; + while (len--) { + eeprom_write_byte(p++, *src++); + } +} + +#endif /* chip selection */ +// The update functions just calls write for now, but could probably be optimized + +void eeprom_update_byte(uint8_t *addr, uint8_t value) { + eeprom_write_byte(addr, value); +} + +void eeprom_update_word(uint16_t *addr, uint16_t value) { + uint8_t *p = (uint8_t *)addr; + eeprom_write_byte(p++, value); + eeprom_write_byte(p, value >> 8); +} + +void eeprom_update_dword(uint32_t *addr, uint32_t value) { + uint8_t *p = (uint8_t *)addr; + eeprom_write_byte(p++, value); + eeprom_write_byte(p++, value >> 8); + eeprom_write_byte(p++, value >> 16); + eeprom_write_byte(p, value >> 24); +} + +void eeprom_update_block(const void *buf, void *addr, uint32_t len) { + uint8_t *p = (uint8_t *)addr; + const uint8_t *src = (const uint8_t *)buf; + while (len--) { + eeprom_write_byte(p++, *src++); + } +} diff --git a/tmk_core/common/chibios/printf.c b/tmk_core/common/chibios/printf.c new file mode 100644 index 0000000000..72e3d4f8c4 --- /dev/null +++ b/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); + } diff --git a/tmk_core/common/chibios/printf.h b/tmk_core/common/chibios/printf.h new file mode 100644 index 0000000000..678a100c6e --- /dev/null +++ b/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 + +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 diff --git a/tmk_core/common/chibios/sleep_led.c b/tmk_core/common/chibios/sleep_led.c new file mode 100644 index 0000000000..4c35cfcbac --- /dev/null +++ b/tmk_core/common/chibios/sleep_led.c @@ -0,0 +1,226 @@ +#include "ch.h" +#include "hal.h" + +#include "led.h" +#include "sleep_led.h" + +/* All right, we go the "software" way: timer, toggle LED in interrupt. + * Based on hasu's code for AVRs. + * Use LP timer on Kinetises, TIM14 on STM32F0. + */ + +#if defined(KL2x) || defined(K20x) + +/* Use Low Power Timer (LPTMR) */ +#define TIMER_INTERRUPT_VECTOR KINETIS_LPTMR0_IRQ_VECTOR +#define RESET_COUNTER LPTMR0->CSR |= LPTMRx_CSR_TCF + +#elif defined(STM32F0XX) + +/* Use TIM14 manually */ +#define TIMER_INTERRUPT_VECTOR STM32_TIM14_HANDLER +#define RESET_COUNTER STM32_TIM14->SR &= ~STM32_TIM_SR_UIF + +#endif + +#if defined(KL2x) || defined(K20x) || defined(STM32F0XX) /* common parts for timers/interrupts */ + +/* Breathing Sleep LED brighness(PWM On period) table + * (64[steps] * 4[duration]) / 64[PWM periods/s] = 4 second breath cycle + * + * http://www.wolframalpha.com/input/?i=%28sin%28+x%2F64*pi%29**8+*+255%2C+x%3D0+to+63 + * (0..63).each {|x| p ((sin(x/64.0*PI)**8)*255).to_i } + */ +static const uint8_t breathing_table[64] = { +0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 4, 6, 10, +15, 23, 32, 44, 58, 74, 93, 113, 135, 157, 179, 199, 218, 233, 245, 252, +255, 252, 245, 233, 218, 199, 179, 157, 135, 113, 93, 74, 58, 44, 32, 23, +15, 10, 6, 4, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +/* interrupt handler */ +OSAL_IRQ_HANDLER(TIMER_INTERRUPT_VECTOR) { + OSAL_IRQ_PROLOGUE(); + + /* Software PWM + * timer:1111 1111 1111 1111 + * \_____/\/ \_______/____ count(0-255) + * \ \______________ duration of step(4) + * \__________________ index of step table(0-63) + */ + + // this works for cca 65536 irqs/sec + static union { + uint16_t row; + struct { + uint8_t count:8; + uint8_t duration:2; + uint8_t index:6; + } pwm; + } timer = { .row = 0 }; + + timer.row++; + + // LED on + if (timer.pwm.count == 0) { + led_set(1<SCGC5 |= SIM_SCGC5_LPTMR; + /* Reset LPTMR settings */ + LPTMR0->CSR = 0; + /* Set the compare value */ + LPTMR0->CMR = 0; // trigger on counter value (i.e. every time) + + /* Set up clock source and prescaler */ + /* Software PWM + * ______ ______ __ + * | ON |___OFF___| ON |___OFF___| .... + * |<-------------->|<-------------->|<- .... + * PWM period PWM period + * + * R interrupts/period[resolution] + * F periods/second[frequency] + * R * F interrupts/second + */ + + /* === OPTION 1 === */ + #if 0 + // 1kHz LPO + // No prescaler => 1024 irqs/sec + // Note: this is too slow for a smooth breathe + LPTMR0->PSR = LPTMRx_PSR_PCS(LPTMR_CLOCK_LPO)|LPTMRx_PSR_PBYP; + #endif /* OPTION 1 */ + + /* === OPTION 2 === */ + #if 1 + // nMHz IRC (n=4 on KL25Z, KL26Z and K20x; n=2 or 8 on KL27Z) + MCG->C2 |= MCG_C2_IRCS; // fast (4MHz) internal ref clock + #if defined(KL27) // divide the 8MHz IRC by 2, to have the same MCGIRCLK speed as others + MCG->MC |= MCG_MC_LIRC_DIV2_DIV2; + #endif /* KL27 */ + MCG->C1 |= MCG_C1_IRCLKEN; // enable internal ref clock + // to work in stop mode, also MCG_C1_IREFSTEN + // Divide 4MHz by 2^N (N=6) => 62500 irqs/sec => + // => approx F=61, R=256, duration = 4 + LPTMR0->PSR = LPTMRx_PSR_PCS(LPTMR_CLOCK_MCGIRCLK)|LPTMRx_PSR_PRESCALE(6); + #endif /* OPTION 2 */ + + /* === OPTION 3 === */ + #if 0 + // OSC output (external crystal), usually 8MHz or 16MHz + OSC0->CR |= OSC_CR_ERCLKEN; // enable ext ref clock + // to work in stop mode, also OSC_CR_EREFSTEN + // Divide by 2^N + LPTMR0->PSR = LPTMRx_PSR_PCS(LPTMR_CLOCK_OSCERCLK)|LPTMRx_PSR_PRESCALE(7); + #endif /* OPTION 3 */ + /* === END OPTIONS === */ + + /* Interrupt on TCF set (compare flag) */ + nvicEnableVector(LPTMR0_IRQn, 2); // vector, priority + LPTMR0->CSR |= LPTMRx_CSR_TIE; +} + +void sleep_led_enable(void) { + /* Enable the timer */ + LPTMR0->CSR |= LPTMRx_CSR_TEN; +} + +void sleep_led_disable(void) { + /* Disable the timer */ + LPTMR0->CSR &= ~LPTMRx_CSR_TEN; +} + +void sleep_led_toggle(void) { + /* Toggle the timer */ + LPTMR0->CSR ^= LPTMRx_CSR_TEN; +} + +#elif defined(STM32F0XX) /* platform selection: STM32F0XX */ + +/* Initiali