# You can get arduino compatibility code from Energia
# https://github.com/energia/Energia
#
# symlink/copy Energia/hardware/msp430/cores/msp430 to ./lib/msp430
# symlink/copy Energia/hardware/msp430/variants/launchpad ./lib/launchpad
# symlink/copy any other libraries you use into ./lib/
#
# put your own code into ./src/

# these can be configure to suite your environment
CC=msp430-gcc
CXX=msp430-g++
MCU=msp430g2553
MSPDEBUG_DRIVER=rf2500
CFLAGS=-c -g -Os -Wall -ffunction-sections -fdata-sections -mmcu=$(MCU) -DF_CPU=16000000L -MMD -DARDUINO=101 -DENERGIA=9 -Ilib/launchpad
CXXFLAGS=$(CFLAGS)

# create a list of objects from src/
SOURCES=$(wildcard src/*.c src/*.cpp)
OBJS_TMP=$(SOURCES:.c=.o)
OBJS=$(OBJS_TMP:.cpp=.o)
BUILD_OBJS=$(addprefix build/,$(OBJS))

# create a list of library objects
SOURCES_lib=$(wildcard lib/*/*.c lib/*/*.cpp)
OBJS_lib_TMP=$(SOURCES_lib:.c=.o)
OBJS_lib=$(OBJS_lib_TMP:.cpp=.o)
BUILD_OBJS_lib=$(addprefix build/,$(OBJS_lib))

CFLAGS += $(addprefix -I,$(sort $(dir $(SOURCES_lib))))

all: dirs build/main.elf

dirs:
	mkdir -p $(sort $(dir $(BUILD_OBJS) $(BUILD_OBJS_lib)))

build/%.o: %.cpp
	@echo " [CXX] $@: $<"
	@$(CXX) $(CXXFLAGS) $^ -o $@

build/%.o: %.c
	@echo " [CC]  $@: $<"
	@$(CC) $(CFLAGS) $^ -o $@

# copy together all lib code into core.a
build/lib/core.a: $(BUILD_OBJS_lib)
	@echo " [AR]  $@: $^"
	@msp430-ar rcs $@ $^

# link everything together
build/main.elf: $(BUILD_OBJS) build/lib/core.a
	@echo " [CC]  $@: $^"
	@$(CC) -Os -Wl,-gc-sections,-u,main -mmcu=$(MCU) -o $@ $^ -lm

# upload the result to the board
upload: all
	mspdebug $(MSPDEBUG_DRIVER) --force-reset "prog build/main.elf" "verify build/main.elf"

clean:
	rm -fr build

.PHONY: dirs all upload clean