project(cmake_stm32f469 C CXX ASM)
cmake_minimum_required(VERSION 3.5.0)


set(ELF_FILE ${PROJECT_NAME}.elf)
set(HEX_FILE ${PROJECT_NAME}.hex)
set(BIN_FILE ${PROJECT_NAME}.bin)
set(HEX_FILEPATH ${CMAKE_BINARY_DIR}/${HEX_FILE})
set(BIN_FILEPATH ${CMAKE_BINARY_DIR}/${BIN_FILE})
set(ELF_FILEPATH ${CMAKE_BINARY_DIR}/${ELF_FILE})

set(CFG_FILEPATH ${CMAKE_SOURCE_DIR}/stm32f469discovery.cfg)

file(GLOB_RECURSE GENERATED_SOURCES ${CMAKE_SOURCE_DIR}/Src/*.c)
list(REMOVE_ITEM GENERATED_SOURCES ${CMAKE_SOURCE_DIR}/Src/main.c)
file(GLOB_RECURSE GENERATED_HEADERS ${CMAKE_SOURCE_DIR}/Inc/*.h)

file(GLOB_RECURSE CUBE_SOURCES ${CMAKE_SOURCE_DIR}/Drivers/STM32F4xx_HAL_Driver/Src/*.c
     ${CMAKE_SOURCE_DIR}/Middlewares/Third_Party/FatFs/src/*.c
     ${CMAKE_SOURCE_DIR}/Middlewares/Third_Party/FatFs/src/option/*.c)
file(GLOB_RECURSE CUBE_HEADERS ${CMAKE_SOURCE_DIR}/Drivers/STM32F4xx_HAL_Driver/Inc/Legacy/*.h
     ${CMAKE_SOURCE_DIR}/Drivers/STM32F4xx_HAL_Driver/*.h
     ${CMAKE_SOURCE_DIR}/Drivers/CMSIS/Device/ST/STM32F4xx/Include/*.h
     ${CMAKE_SOURCE_DIR}/Middlewares/Third_Party/FatFs/src/*.h)
list(FILTER CUBE_SOURCES EXCLUDE REGEX "${CMAKE_SOURCE_DIR}/Drivers/STM32F4xx_HAL_Driver/Src/.+_template.c")

file(GLOB_RECURSE HAL_SOURCES ${CMAKE_SOURCE_DIR}/Srcpp/Hal/*.cpp ${CMAKE_SOURCE_DIR}/Srcpp/Hal/*.c)
file(GLOB_RECURSE APP_SOURCES ${CMAKE_SOURCE_DIR}/Srcpp/App/*.cpp ${CMAKE_SOURCE_DIR}/Srcpp/App/*.c)
file(GLOB USER_MAIN ${CMAKE_SOURCE_DIR}/Srcpp/main.cpp)


file(GLOB_RECURSE HAL_APP_HEADERS ${CMAKE_SOURCE_DIR}/Incpp/*.hpp ${CMAKE_SOURCE_DIR}/Incpp/*.h)

SET(C_FLAGS "-std=gnu99")
SET(CXX_FLAGS "-std=gnu++11")
SET(COMMON_FLAGS "-DSTM32F469xx -DUSE_HAL_DRIVER")
SET(CMAKE_C_FLAGS "${COMMON_FLAGS} ${C_FLAGS}")
SET(CMAKE_CXX_FLAGS "${COMMON_FLAGS} ${CXX_FLAGS}")

include_directories(Inc)
include_directories(Drivers/STM32F4xx_HAL_Driver/Inc)
include_directories(Drivers/STM32F4xx_HAL_Driver/Inc/Legacy)
include_directories(Drivers/CMSIS/Include)
include_directories(Drivers/CMSIS/Device/ST/STM32F4xx/Include)
include_directories(Middlewares/Third_Party/FatFs/src)
include_directories(Drivers/CMSIS/Device/ST/STM32F4xx/Include)
include_directories(Incpp)

SET(LINKER_SCRIPT ${CMAKE_SOURCE_DIR}/STM32F469NIHx_FLASH.ld)
SET(COMMON_FLAGS "${COMMON_FLAGS} -O0 -mcpu=cortex-m4 -mthumb -mfpu=fpv4-sp-d16 -mfloat-abi=soft -ffunction-sections -fmessage-length=0 \
    -specs=rdimon.specs -lc -lrdimon")
SET(CMAKE_C_FLAGS "${COMMON_FLAGS} ${C_FLAGS}")
SET(CMAKE_CXX_FLAGS "${COMMON_FLAGS} ${CXX_FLAGS}")
SET(CMAKE_EXE_LINKER_FLAGS "-Wl,-gc-sections -T${LINKER_SCRIPT}")

include(CMakeForceCompiler)


SET(CMAKE_C_COMPILER arm-none-eabi-gcc)
SET(CMAKE_CXX_COMPILER arm-none-eabi-g++)
SET(CMAKE_ASM_COMPILER arm-none-eabi-as)
SET(CMAKE_OBJECT_COPY arm-none-eabi-objcopy)
SET(CMAKE_OBJECT_SIZE arm-none-eabi-size)

add_library(CMSIS
            ${CMAKE_SOURCE_DIR}/Src/system_stm32f4xx.c
            ${CMAKE_SOURCE_DIR}/startup_stm32f469xx.s)


add_executable(${ELF_FILE} ${USER_MAIN} ${HAL_SOURCES} ${APP_SOURCES} ${HAL_APP_HEADERS} ${GENERATED_SOURCES} ${GENERATED_HEADERS}
               ${CUBE_SOURCES} ${CUBE_HEADERS} ${LINKER_SCRIPT})

target_link_libraries(${ELF_FILE} CMSIS m)

add_custom_target(run_all
                  DEPENDS
                  ${ELF_FILE}
                  run_tests)

add_custom_command(TARGET ${ELF_FILE} POST_BUILD
                   COMMENT "Target size: ${ELF_FILE}"
                   COMMAND ${CMAKE_OBJECT_SIZE} ${PROJECT_NAME}.elf)

add_custom_command(TARGET ${ELF_FILE} POST_BUILD
                   COMMENT "Building: ${HEX_FILE}"
                   COMMAND ${CMAKE_OBJECT_COPY} -Oihex $<TARGET_FILE:${ELF_FILE}> ${HEX_FILEPATH})

add_custom_command(TARGET ${ELF_FILE} POST_BUILD
                   COMMENT "Building: ${BIN_FILE}"
                   COMMAND ${CMAKE_OBJECT_COPY} -Obinary $<TARGET_FILE:${ELF_FILE}> ${BIN_FILEPATH})


add_custom_target(flash-stm COMMENT "FLASH_STM" COMMAND st-flash write ${BIN_FILEPATH} 0x08000000 DEPENDS ${ELF_FILE})