include_guard()

include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)

set(MCU_VARIANT tm4c${MCU_SUB_VARIANT})
set(MCU_VARIANT_UPPER TM4C${MCU_SUB_VARIANT})

set(SDK_DIR ${TOP}/hw/mcu/ti/tm4c)
set(CMSIS_DIR ${TOP}/lib/CMSIS_5)

# toolchain set up
set(CMAKE_SYSTEM_CPU cortex-m4 CACHE INTERNAL "System Processor")
set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/arm_${TOOLCHAIN}.cmake)

set(FAMILY_MCUS TM4C CACHE INTERNAL "")

#------------------------------------
# Startup & Linker script
#------------------------------------
set(LD_FILE_Clang ${LD_FILE_GNU})
set(STARTUP_FILE_GNU ${SDK_DIR}/Source/GCC/${MCU_VARIANT}_startup.c)
set(STARTUP_FILE_Clang ${STARTUP_FILE_GNU})
set(STARTUP_FILE_IAR ${SDK_DIR}/Source/IAR/${MCU_VARIANT}_startup.c)
#------------------------------------
# Board Target
#------------------------------------
function(family_add_board BOARD_TARGET)
  add_library(${BOARD_TARGET} STATIC
    ${SDK_DIR}/Source/system_${MCU_VARIANT_UPPER}.c
    )
  target_include_directories(${BOARD_TARGET} PUBLIC
    ${SDK_DIR}/Include
    ${CMSIS_DIR}/CMSIS/Core/Include
    )

  update_board(${BOARD_TARGET})
endfunction()

#------------------------------------
# Functions
#------------------------------------
function(family_configure_example TARGET RTOS)
  family_configure_common(${TARGET} ${RTOS})
  family_add_tinyusb(${TARGET} OPT_MCU_TM4C${MCU_SUB_VARIANT})

  target_sources(${TARGET} PUBLIC
    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/family.c
    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../board.c
    ${TOP}/src/portable/mentor/musb/dcd_musb.c
    ${TOP}/src/portable/mentor/musb/hcd_musb.c
    ${STARTUP_FILE_${CMAKE_C_COMPILER_ID}}
    )
  target_include_directories(${TARGET} PUBLIC
    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../../
    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/boards/${BOARD}
    )

  if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
    target_link_options(${TARGET} PUBLIC
      "LINKER:--script=${LD_FILE_GNU}"
      --specs=nosys.specs --specs=nano.specs
      )
  elseif (CMAKE_C_COMPILER_ID STREQUAL "Clang")
    message(FATAL_ERROR "Clang is not supported")
  elseif (CMAKE_C_COMPILER_ID STREQUAL "IAR")
    target_link_options(${TARGET} PUBLIC
      "LINKER:--config=${LD_FILE_IAR}"
      )
  endif ()

  if (CMAKE_C_COMPILER_ID STREQUAL "GNU" OR CMAKE_C_COMPILER_ID STREQUAL "Clang")
    set_source_files_properties(${CMAKE_CURRENT_FUNCTION_LIST_DIR}/family.c PROPERTIES COMPILE_FLAGS "-Wno-missing-prototypes")
    set_source_files_properties(${STARTUP_FILE_${CMAKE_C_COMPILER_ID}} PROPERTIES
      SKIP_LINTING ON
      COMPILE_OPTIONS -w)
  endif ()

  # Flashing
  family_add_bin_hex(${TARGET})
  family_flash_jlink(${TARGET})
  family_flash_lm4flash(${TARGET})
  # family_flash_uniflash(${TARGET})
endfunction()