tinyUSB/hw/bsp/family_support.cmake

include_guard()

include(CMakePrintHelpers)

# TOP is path to root directory
set(TOP "${CMAKE_CURRENT_LIST_DIR}/../..")
get_filename_component(TOP ${TOP} ABSOLUTE)

# Default to gcc
if (NOT DEFINED TOOLCHAIN)
  set(TOOLCHAIN gcc)
endif ()

if (NOT FAMILY)
  message(FATAL_ERROR "You must set a FAMILY variable for the build (e.g. rp2040, eps32s2, esp32s3). You can do this via -DFAMILY=xxx on the cmake command line")
endif ()

if (NOT EXISTS ${CMAKE_CURRENT_LIST_DIR}/${FAMILY}/family.cmake)
  message(FATAL_ERROR "Family '${FAMILY}' is not known/supported")
endif()


function(family_filter RESULT DIR)
  get_filename_component(DIR ${DIR} ABSOLUTE BASE_DIR ${CMAKE_CURRENT_SOURCE_DIR})

  if (EXISTS "${DIR}/only.txt")
    file(READ "${DIR}/only.txt" ONLYS)
    # Replace newlines with semicolon so that it is treated as a list by CMake
    string(REPLACE "\n" ";" ONLYS_LINES ${ONLYS})

    # For each mcu
    foreach(MCU IN LISTS FAMILY_MCUS)
      # For each line in only.txt
      foreach(_line ${ONLYS_LINES})
        # If mcu:xxx exists for this mcu or board:xxx then include
        if (${_line} STREQUAL "mcu:${MCU}" OR ${_line} STREQUAL "board:${BOARD}")
          set(${RESULT} 1 PARENT_SCOPE)
          return()
        endif()
      endforeach()
    endforeach()

    # Didn't find it in only file so don't build
    set(${RESULT} 0 PARENT_SCOPE)

  elseif (EXISTS "${DIR}/skip.txt")
    file(READ "${DIR}/skip.txt" SKIPS)
    # Replace newlines with semicolon so that it is treated as a list by CMake
    string(REPLACE "\n" ";" SKIPS_LINES ${SKIPS})

    # For each mcu
    foreach(MCU IN LISTS FAMILY_MCUS)
      # For each line in only.txt
      foreach(_line ${SKIPS_LINES})
        # If mcu:xxx exists for this mcu then skip
        if (${_line} STREQUAL "mcu:${MCU}")
          set(${RESULT} 0 PARENT_SCOPE)
          return()
        endif()
      endforeach()
    endforeach()

    # Didn't find in skip file so build
    set(${RESULT} 1 PARENT_SCOPE)
  else()

    # Didn't find skip or only file so build
    set(${RESULT} 1 PARENT_SCOPE)
  endif()
endfunction()


function(family_add_subdirectory DIR)
  family_filter(SHOULD_ADD "${DIR}")
  if (SHOULD_ADD)
    add_subdirectory(${DIR})
  endif()
endfunction()


function(family_get_project_name OUTPUT_NAME DIR)
  get_filename_component(SHORT_NAME ${DIR} NAME)
  set(${OUTPUT_NAME} ${TINYUSB_FAMILY_PROJECT_NAME_PREFIX}${SHORT_NAME} PARENT_SCOPE)
endfunction()


function(family_initialize_project PROJECT DIR)
  # set output suffix to .elf (skip espressif and rp2040)
  if(NOT FAMILY STREQUAL "espressif" AND NOT FAMILY STREQUAL "rp2040")
    set(CMAKE_EXECUTABLE_SUFFIX .elf PARENT_SCOPE)
  endif()

  family_filter(ALLOWED "${DIR}")
  if (NOT ALLOWED)
    get_filename_component(SHORT_NAME ${DIR} NAME)
    message(FATAL_ERROR "${SHORT_NAME} is not supported on FAMILY=${FAMILY}")
  endif()
endfunction()


# Add segger rtt to example
function(family_add_segger_rtt TARGET)
  if (NOT TARGET segger_rtt)
    add_library(segger_rtt STATIC
      ${TOP}/lib/SEGGER_RTT/RTT/SEGGER_RTT.c
      )
    target_include_directories(segger_rtt PUBLIC ${TOP}/lib/SEGGER_RTT/RTT)
  endif()

  target_link_libraries(${TARGET} PUBLIC segger_rtt)
endfunction()

#------------------------------------
# Main target configure
#------------------------------------

# Add common configuration to example
function(family_configure_common TARGET)
  # run size after build
  add_custom_command(TARGET ${TARGET} POST_BUILD
    COMMAND ${CMAKE_SIZE} $<TARGET_FILE:${TARGET}>
    )

  if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
    # Generate map file
    target_link_options(${TARGET} PUBLIC
      # link map
      "LINKER:-Map=$<TARGET_FILE:${TARGET}>.map"
      )
  endif()

  # LOGGER
  if (DEFINED LOGGER)
    target_compile_definitions(${TARGET} PUBLIC LOGGER_${LOGGER})
    if(LOGGER STREQUAL "RTT" OR LOGGER STREQUAL "rtt")
      family_add_segger_rtt(${TARGET})
    endif ()
  endif ()

endfunction()


# configure an executable target to link to tinyusb in device mode, and add the board implementation
function(family_configure_device_example TARGET)
  # default implementation is empty, the function should be redefined in the FAMILY/family.cmake
endfunction()


# configure an executable target to link to tinyusb in host mode, and add the board implementation
function(family_configure_host_example TARGET)
  # default implementation is empty, the function should be redefined in the FAMILY/family.cmake
endfunction()


# Add tinyusb to example
function(family_add_tinyusb TARGET OPT_MCU)
  # tinyusb target is built for each example since it depends on example's tusb_config.h
  set(TINYUSB_TARGET_PREFIX ${TARGET}-)
  add_library(${TARGET}-tinyusb_config INTERFACE)

  target_include_directories(${TARGET}-tinyusb_config INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/src)
  target_compile_definitions(${TARGET}-tinyusb_config INTERFACE CFG_TUSB_MCU=${OPT_MCU})
  if (DEFINED LOG)
    target_compile_definitions(${TARGET}-tinyusb_config INTERFACE CFG_TUSB_DEBUG=${LOG})
  endif()

  # tinyusb's CMakeList.txt
  add_subdirectory(${TOP}/src ${CMAKE_CURRENT_BINARY_DIR}/tinyusb)
endfunction()


# Add freeRTOS support to example
function(family_add_freertos TARGET)
  # freeros config
  if (NOT TARGET freertos_config)
    add_library(freertos_config INTERFACE)
    target_include_directories(freertos_config INTERFACE
      ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${FAMILY}/FreeRTOSConfig
      )
  endif()

  # freertos kernel should be generic as freertos_config however, CMAKE complains with missing variable
  # such as CMAKE_C_COMPILE_OBJECT
  if (NOT TARGET freertos_kernel)
    add_subdirectory(${TOP}/lib/FreeRTOS-Kernel ${CMAKE_BINARY_DIR}/lib/freertos_kernel)
  endif ()

  # Add FreeRTOS option to tinyusb_config
  target_compile_definitions(${TARGET}-tinyusb_config INTERFACE
    CFG_TUSB_OS=OPT_OS_FREERTOS
    )
  # link tinyusb with freeRTOS kernel
  target_link_libraries(${TARGET}-tinyusb PUBLIC
    freertos_kernel
    )
  target_link_libraries(${TARGET} PUBLIC
    freertos_kernel
    )
endfunction()


function(family_add_default_example_warnings TARGET)
  target_compile_options(${TARGET} PUBLIC
    -Wall
    -Wextra
    -Werror
    -Wfatal-errors
    -Wdouble-promotion
    -Wfloat-equal
    -Wshadow
    -Wwrite-strings
    -Wsign-compare
    -Wmissing-format-attribute
    -Wunreachable-code
    -Wcast-align
    -Wcast-qual
    -Wnull-dereference
    -Wuninitialized
    -Wunused
    -Wredundant-decls
    #-Wstrict-prototypes
    #-Werror-implicit-function-declaration
    #-Wundef
    )

  if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
    if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 12.0)
      target_link_options(${TARGET} PUBLIC "LINKER:--no-warn-rwx-segments")
    endif()

    # GCC 10
    if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 10.0)
      target_compile_options(${TARGET} PUBLIC -Wconversion)
    endif()

    # GCC 8
    if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 8.0)
      target_compile_options(${TARGET} PUBLIC -Wcast-function-type -Wstrict-overflow)
    endif()

    # GCC 6
    if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 6.0)
      target_compile_options(${TARGET} PUBLIC -Wno-strict-aliasing)
    endif()
  endif()
endfunction()


# Add bin/hex output
function(family_add_bin_hex TARGET)
  add_custom_command(TARGET ${TARGET} POST_BUILD
    COMMAND ${CMAKE_OBJCOPY} -Obinary $<TARGET_FILE:${TARGET}> $<TARGET_FILE_DIR:${TARGET}>/${TARGET}.bin
    COMMAND ${CMAKE_OBJCOPY} -Oihex $<TARGET_FILE:${TARGET}> $<TARGET_FILE_DIR:${TARGET}>/${TARGET}.hex
    VERBATIM)
endfunction()


#----------------------------------
# Flashing target
#----------------------------------

# Add flash jlink target
function(family_flash_jlink TARGET)
  if (NOT DEFINED JLINKEXE)
    set(JLINKEXE JLinkExe)
  endif ()

  file(GENERATE
    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${TARGET}.jlink
    CONTENT "halt
loadfile $<TARGET_FILE:${TARGET}>
r
go
exit"
    )

  add_custom_target(${TARGET}-jlink
    DEPENDS ${TARGET}
    COMMAND ${JLINKEXE} -device ${JLINK_DEVICE} -if swd -JTAGConf -1,-1 -speed auto -CommandFile ${CMAKE_CURRENT_BINARY_DIR}/${TARGET}.jlink
    )
endfunction()


# Add flash stlink target
function(family_flash_stlink TARGET)
  if (NOT DEFINED STM32_PROGRAMMER_CLI)
    set(STM32_PROGRAMMER_CLI STM32_Programmer_CLI)
  endif ()

  add_custom_target(${TARGET}-stlink
    DEPENDS ${TARGET}
    COMMAND ${STM32_PROGRAMMER_CLI} --connect port=swd --write $<TARGET_FILE:${TARGET}> --go
    )
endfunction()


# Add flash pycod target
function(family_flash_pyocd TARGET)
  if (NOT DEFINED PYOC)
    set(PYOCD pyocd)
  endif ()

  add_custom_target(${TARGET}-pyocd
    DEPENDS ${TARGET}
    COMMAND ${PYOCD} flash -t ${PYOCD_TARGET} $<TARGET_FILE:${TARGET}>
    )
endfunction()


# Add flash using NXP's LinkServer (redserver)
# https://www.nxp.com/design/software/development-software/mcuxpresso-software-and-tools-/linkserver-for-microcontrollers:LINKERSERVER
function(family_flash_nxplink TARGET)
  if (NOT DEFINED LINKSERVER)
    set(LINKSERVER LinkServer)
  endif ()

  # LinkServer has a bug that can only execute with full path otherwise it throws:
  # realpath error: No such file or directory
  execute_process(COMMAND which ${LINKSERVER} OUTPUT_VARIABLE LINKSERVER_PATH OUTPUT_STRIP_TRAILING_WHITESPACE)

  add_custom_target(${TARGET}-nxplink
    DEPENDS ${TARGET}
    COMMAND ${LINKSERVER_PATH} flash ${NXPLINK_DEVICE} load $<TARGET_FILE:${TARGET}>
    )
endfunction()


# family specific: can override above functions
include(${CMAKE_CURRENT_LIST_DIR}/${FAMILY}/family.cmake)

if (NOT FAMILY_MCUS)
  set(FAMILY_MCUS ${FAMILY})
endif()

# save it in case of re-inclusion
set(FAMILY_MCUS ${FAMILY_MCUS} CACHE INTERNAL "")