new driver blinkenlights

1 files changed, 175 insertions, 56 deletions

diff --git a/driver_fw/Makefile b/driver_fw/Makefile
index 85bc4c7..c9393bf 100644
--- a/driver_fw/Makefile
+++ b/driver_fw/Makefile
@@ -1,73 +1,192 @@
-CUBE_PATH 		?= $(wildcard ~)/ref/stm32cube/STM32CubeF0
-CMSIS_PATH 		?= $(CUBE_PATH)/Drivers/CMSIS
-CMSIS_DEV_PATH  ?= $(CMSIS_PATH)/Device/ST/STM32F0xx
-HAL_PATH   		?= $(CUBE_PATH)/Drivers/STM32F0xx_HAL_Driver
 
-MAC_ADDR        ?= 0xdeadbeef
+########################################################################################################################
+# Dependency directories
+########################################################################################################################
 
-CC      := arm-none-eabi-gcc
-LD      := arm-none-eabi-ld
-OBJCOPY := arm-none-eabi-objcopy
-OBJDUMP := arm-none-eabi-objdump
-SIZE    := arm-none-eabi-size
+MUSL_DIR			?= upstream/musl
 
-CFLAGS  = -g -Wall -std=gnu11 -O0 -fdump-rtl-expand -Wno-discarded-qualifiers
-CFLAGS += -mlittle-endian -mcpu=cortex-m0 -mthumb
-#CFLAGS += -ffunction-sections -fdata-sections
-LDFLAGS = -nostartfiles
-#LDFLAGS += -specs=rdimon.specs -DSEMIHOSTING
-LDFLAGS += -Wl,-Map=main.map -nostdlib
-#LDFLAGS += -Wl,--gc-sections 
-LIBS = -lgcc
-#LIBS += -lrdimon
+########################################################################################################################
+# Algorithm parameters
+########################################################################################################################
 
-# Technically we're using an STM32F030F4, but apart from the TSSOP20 package that one is largely identical to the
-# STM32F030*6 and there is no separate device header provided for it, so we're faking a *6 device here. This is
-# even documented in stm32f0xx.h. Thanks ST!
-CFLAGS += -DSTM32F030x6 -DHSE_VALUE=8000000 -DMAC_ADDR=$(MAC_ADDR)
+# - none -
 
-LDFLAGS += -Tstm32_flash.ld
-CFLAGS += -I$(CMSIS_DEV_PATH)/Include -I$(CMSIS_PATH)/Include -I$(HAL_PATH)/Inc -Iconfig -I../common
-#LDFLAGS += -L$(CMSIS_PATH)/Lib/GCC -larm_cortexM0l_math
+########################################################################################################################
+# High-level build parameters
+########################################################################################################################
 
-SOURCES = main.c startup_stm32f030x6.s system_stm32f0xx.c base.c $(HAL_PATH)/Src/stm32f0xx_ll_utils.c cmsis_exports.c \
-		  ../common/8b10b.c serial.c mac.c i2c.c lcd1602.c mcp9801.c ina226.c mini-printf.c
+DEBUG			?= 1
+OPT				?= 0
 
-###################################################
+BUILDDIR 		?= build
+BINARY 			:= main.elf
+LDSCRIPT 		:= generic_stm32.ld
+DEVICE 			:= STM32G070RB
 
-.PHONY: program clean
 
-all: main.elf
+########################################################################################################################
+# Sources
+########################################################################################################################
 
-.clang:
-	echo flags = $(CFLAGS) > .clang 
+ASM_SOURCES 		:= startup.s
 
-cmsis_exports.c: $(CMSIS_DEV_PATH)/Include/stm32f030x6.h $(CMSIS_PATH)/Include/core_cm0.h
-	python3 gen_cmsis_exports.py $^ > $@
+C_SOURCES		 	:= src/main.c
 
-%.o: %.c
-	$(CC) -c $(CFLAGS) -o $@ $^
-#	$(CC) -E $(CFLAGS) -o $(@:.o=.pp) $^
+CPP_SOURCES			:= # - none -
 
-%.o: %.s
-	$(CC) -c $(CFLAGS) -o $@ $^
-#	$(CC) -E $(CFLAGS) -o $(@:.o=.pp) $^
+MUSL_SOURCES		:= # - none -
+MUSL_SOURCES		:= $(addprefix $(MUSL_DIR)/src/,$(MUSL_SOURCES))
+
+C_SOURCES += $(MUSL_SOURCES)
+
+
+########################################################################################################################
+# Low-level build parameters
+########################################################################################################################
+
+PREFIX		?= arm-none-eabi-
+
+HOSTCC		:= gcc
+CC			:= $(PREFIX)gcc
+CPP			:= $(PREFIX)cpp
+CXX			:= $(PREFIX)g++
+LD			:= $(PREFIX)gcc
+AR			:= $(PREFIX)ar
+AS			:= $(PREFIX)as
+SIZE		:= $(PREFIX)size
+NM			:= $(PREFIX)nm
+OBJCOPY		:= $(PREFIX)objcopy
+OBJDUMP		:= $(PREFIX)objdump
+GDB			:= $(PREFIX)gdb
+
+HOST_CC				?= $(HOST_PREFIX)gcc
+HOST_CXX			?= $(HOST_PREFIX)g++
+HOST_LD				?= $(HOST_PREFIX)gcc
+HOST_AR				?= $(HOST_PREFIX)ar
+HOST_AS				?= $(HOST_PREFIX)as
+HOST_OBJCOPY		?= $(HOST_PREFIX)objcopy
+HOST_OBJDUMP		?= $(HOST_PREFIX)objdump
+
+PYTHON3 ?= python3
+DOT		?= dot
+
+MUSL_DIR_ABS			:= $(abspath $(MUSL_DIR))
+CMSIS_DEVICE_DIR_ABS	:= $(abspath $(CMSIS_DEVICE_DIR))
+
+DEVICE_FAMILY	:= $(shell echo $(DEVICE) | grep -Eio 'STM32[a-z]{1,2}[0-9]'|cut -c 6-)
+DEVICE_DEFINES 	:= -DSTM32$(DEVICE_FAMILY) $(addprefix -D,$(shell cat stm32_buildinfo.defines))
+
+ARCH_FLAGS		?= -mthumb -mcpu=cortex-m0 -mfloat-abi=soft
+SYSTEM_FLAGS	?= -nostdlib -ffreestanding -nostartfiles
+
+COMMON_CFLAGS	+= -I$(abspath include)
+COMMON_CFLAGS	+= -I$(BUILDDIR)
+
+CFLAGS			+= -I$(abspath tools/musl_include_shims)
+CFLAGS			+= -I$(abspath upstream/libusb_stm32/inc)
+CFLAGS			+= -I$(CMSIS_DEVICE_DIR_ABS)/Include
+
+CFLAGS			+= $(ARCH_FLAGS) $(SYSTEM_FLAGS)
+CFLAGS			+= -fno-common -ffunction-sections -fdata-sections
+
+COMMON_CFLAGS	+= -O$(OPT) -std=gnu2x -g
+COMMON_CFLAGS 	+= $(DEVICE_DEFINES)
+COMMON_CFLAGS 	+= -DDEBUG=$(DEBUG)
+
+HOST_CFLAGS		+= $(COMMON_CFLAGS)
+
+# for musl
+CFLAGS			+= -Dhidden=
+
+SIM_CFLAGS	+= -lm -DSIMULATION
+SIM_CFLAGS	+= -Wall -Wextra -Wpedantic -Wshadow -Wimplicit-function-declaration -Wundef -Wno-unused-parameter
+
+INT_CFLAGS	+= -Wall -Wextra -Wpedantic -Wshadow -Wimplicit-function-declaration -Wundef -Wno-unused-parameter
+INT_CFLAGS	+= -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes
+
+CXXFLAGS	+= -Os -g
+CXXFLAGS	+= $(ARCH_FLAGS) $(SYSTEM_FLAGS)
+CXXFLAGS	+= -fno-common -ffunction-sections -fdata-sections
+CXXFLAGS	+= -Wall -Wextra -Wshadow -Wundef -Wredundant-decls
+CXXFLAGS	+= -I.
+
+LDFLAGS			+= $(ARCH_FLAGS) $(SYSTEM_FLAGS)
+
+LIBS		+= -lgcc
+#LDFLAGS		+= -Wl,--gc-sections
+
+LINKMEM_FLAGS ?= --trim-stubs=startup.o --trace-sections .isr_vector --highlight-subdirs $(BUILDDIR)
+
+OBJS := $(addprefix $(BUILDDIR)/,$(C_SOURCES:.c=.o) $(CXX_SOURCES:.cpp=.o) $(ASM_SOURCES:.s=.o))
+ALL_OBJS := $(OBJS)
+ALL_OBJS += $(BUILDDIR)/system.o
+# Add generated source here.
+
+########################################################################################################################
+# Rules
+########################################################################################################################
+
+all: binsize
+
+.PHONY: binsize
+binsize: $(BUILDDIR)/$(BINARY) $(BUILDDIR)/$(BINARY:.elf=-symbol-sizes.pdf)
+	$(LD) -T$(LDSCRIPT) $(LDFLAGS) -Wl,--print-memory-usage -o /dev/null $(ALL_OBJS) $(LIBS)
+	@echo
+	@echo "▐▬▬▬▌ SyMbOL sIzE HiGhScORe LiSt ▐▬▬▬▌"
+	$(NM) --print-size --size-sort --radix=d $< | tail -n 20
+
+.PRECIOUS: $(BUILDDIR)/$(BINARY) 
+$(BUILDDIR)/$(BINARY) $(BUILDDIR)/$(BINARY:.elf=.map) &: $(ALL_OBJS)
+	$(LD) -T$(LDSCRIPT) $(LDFLAGS) -o $@ -Wl,-Map=$(BUILDDIR)/$(BINARY:.elf=.map) $(ALL_OBJS) $(LIBS)
+
+build/$(BINARY:.elf=-symbol-sizes.dot): $(ALL_OBJS)
+	$(PYTHON3) tools/linkmem.py $(LINKMEM_FLAGS) $(LD) -T$(LDSCRIPT) $(LDFLAGS) $^ $(LIBS) > $@
+
+%.pdf: %.dot
+	$(DOT) -T pdf $< -o $@
 
 %.dot: %.elf
-	r2 -a arm -qc 'aa;agC' $< 2>/dev/null >$@
-
-main.elf: $(SOURCES)
-	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)
-	$(OBJCOPY) -O ihex $@ $(@:.elf=.hex)
-	$(OBJCOPY) -O binary $@ $(@:.elf=.bin)
-	$(OBJDUMP) -St $@ >$(@:.elf=.lst)
-	$(SIZE) $@
-	
-program: main.elf openocd.cfg
-	openocd -f openocd.cfg -c "program $< verify reset exit"
+	r2 -a arm -qc 'aa;agRd' $< 2>/dev/null >$@
 
-clean:
-	rm -f **.o **.pp
-	rm -f main.elf main.hex main.bin main.map main.lst
-	rm -f **.expand
+$(BUILDDIR)/src/%.o: src/%.s
+	mkdir -p $(@D)
+	$(CC) $(COMMON_CFLAGS) $(CFLAGS) $(INT_CFLAGS) -o $@ -c $<
+
+$(BUILDDIR)/src/%.o: src/%.c
+	mkdir -p $(@D)
+	$(CC) $(COMMON_CFLAGS) $(CFLAGS) $(INT_CFLAGS) -o $@ -c $<
+
+$(BUILDDIR)/src/%.o: src/%.cpp
+	mkdir -p $(@D)
+	$(CXX) $(CXXFLAGS) -o $@ -c $<
 
+$(BUILDDIR)/%.o: %.c
+	mkdir -p $(@D)
+	$(CC) $(COMMON_CFLAGS) $(CFLAGS) $(EXT_CFLAGS) -o $@ -c $<
+
+$(BUILDDIR)/%.o: %.s
+	mkdir -p $(@D)
+	$(CC) $(COMMON_CFLAGS) $(CFLAGS) $(EXT_CFLAGS) -o $@ -c $<
+
+venv:
+	test -d venv || python3 -m venv --system-site-packages venv
+	source venv/bin/activate && pip install cxxfilt pyelftools libarchive matplotlib
+
+clean:
+	rm -rf $(BUILDDIR)/src
+	rm -f $(BUILDDIR)/**.o
+	rm -f $(BUILDDIR)/$(BINARY)
+	rm -f $(BUILDDIR)/$(BINARY:.elf=.map)
+	rm -f $(BUILDDIR)/$(BINARY:.elf=-symbol-sizes.dot)
+	rm -f $(BUILDDIR)/$(BINARY:.elf=-symbol-sizes.pdf)
+	rm -f $(BUILDDIR)/crc32_test
+	rm -f $(BUILDDIR)/microcobs_test_sg
+	rm -f $(BUILDDIR)/microcobs_test
+	rm -f $(BUILDDIR)/microcobs_decode_test
+
+mrproper: clean
+	rm -rf build
+
+.PHONY: clean mrproper
+
+-include $(OBJS:.o=.d)