cmake_minimum_required(VERSION 3.24)

# Set the project name and version
project(spirx VERSION 1.0)

# Use debug or release libs
if(CMAKE_BUILD_TYPE STREQUAL "Release")
    set(BUILD_PROFILE "release")
else()
    set(BUILD_PROFILE "debug")
endif()

if(NOT DEFINED BOARD)
    set(BOARD "j721e_evm")
endif()

# Set the target processor
if(NOT DEFINED TARGET_PROCESSOR)
    set(TARGET_PROCESSOR "r5f")  # Modify this according to your target processor (R5F or A72, etc.)
elseif(NOT "${TARGET_PROCESSOR}" STREQUAL "r5f")
    message(FATAL_ERROR "TARGET_PROCESSOR=${TARGET_PROCESSOR} is not supported for this project.")
endif()

# Set the target core
# mcu1_0 mcu1_1 are no longer supported
set(SUPPORTED_CORES mcu2_0 mcu2_1)
if(NOT DEFINED TARGET_CORE)
    set(TARGET_CORE "mcu2_1")
elseif(NOT "${TARGET_CORE}" IN_LIST SUPPORTED_CORES)
    message(FATAL_ERROR "TARGET_CORE=${TARGET_CORE} not in supported core list.")
endif()

# Append to additional build options
if("${TARGET_CORE}" STREQUAL "mcu2_0")
    set(ADDITIONAL_BUILD_OPTS "${ADDITIONAL_BUILD_OPTS} -DBUILD_MCU2_0 -DBUILD_MCU")
elseif("${TARGET_CORE}" STREQUAL "mcu2_1")
    set(ADDITIONAL_BUILD_OPTS "${ADDITIONAL_BUILD_OPTS} -DBUILD_MCU2_1 -DBUILD_MCU")
endif()

# Specify the C compiler and flags
set(CMAKE_C_COMPILER "$ENV{TI_TOOLCHAIN_PATH}/bin/tiarmclang")
set(CMAKE_CXX_COMPILER "$ENV{TI_TOOLCHAIN_PATH}/bin/tiarmclang")
set(CMAKE_LINKER "$ENV{TI_TOOLCHAIN_PATH}/bin/tiarmclang")
set(LIBC_AR "$ENV{TI_TOOLCHAIN_PATH}/lib/libc.a") 

# Specify the C flags (e.g., optimization, architecture)
set(CMAKE_C_FLAGS "-g -DMAKEFILE_BUILD -fno-strict-aliasing -EL -mfloat-abi=hard -mfpu=vfpv3-d16 -mcpu=cortex-r5 -mthumb -march=thumbv7r -DFREERTOS -DSOC_J721E -Dj721e_evm=j721e_evm ${ADDITIONAL_BUILD_OPTS}")
set(CMAKE_CXX_FLAGS "-DMAKEFILE_BUILD -fno-strict-aliasing -EL -mfloat-abi=hard -mfpu=vfpv3-d16 -mcpu=cortex-r5 -mthumb -march=thumbv7r -DFREERTOS -DSOC_J721E -Dj721e_evm=j721e_evm ${ADDITIONAL_BUILD_OPTS}")

# Set PDK_SOURCE_DIR
if(NOT DEFINED PDK_SOURCE_DIR)
    set(PDK_SOURCE_DIR "$ENV{TI_SDK_PATH}/pdk_jacinto_10_01_00_25")
endif()

set(SPI_LIB "${CMAKE_SOURCE_DIR}/lib/${BUILD_PROFILE}/wx.spi.aer5f")

# Add the include directories for Processor SDK and PDK
include_directories(
    ${PDK_SOURCE_DIR}/packages
    ${CMAKE_CURRENT_SOURCE_DIR}
    ${CMAKE_SOURCE_DIR}/board/src/
    ${CMAKE_SOURCE_DIR}/board/src/j721e_evm/include
    ${CMAKE_CURRENT_SOURCE_DIR}/src/
    ${PDK_SOURCE_DIR}/packages/ti/csl/
    ${PDK_SOURCE_DIR}/packages/ti/csl/arch/r5/
    ${PDK_SOURCE_DIR}/packages/ti/csl/arch/r5/src/startup/
    ${PDK_SOURCE_DIR}/packages/ti/kernel/freertos/config/j721e/r5f/
)

if("${TARGET_CORE}" STREQUAL "mcu2_0" OR "${TARGET_CORE}" STREQUAL "mcu2_1")
    set(ADDITIONAL_LIBS
        "${PDK_SOURCE_DIR}/packages/ti/build/j721e/linker_r5_freertos.lds"
    )
else()
    message(FATAL_ERROR "Core not yet supported.")
endif()

# Add the source files
set(SOURCES
    ${CMAKE_CURRENT_SOURCE_DIR}/main.c
)

# Add the source to the executable
add_executable(${PROJECT_NAME} ${SOURCES})

set(GROUPED_LIBS 
    "${PDK_SOURCE_DIR}/packages/ti/csl/lib/j721e/${TARGET_PROCESSOR}/${BUILD_PROFILE}/ti.csl.aer5f"
    "${PDK_SOURCE_DIR}/packages/ti/drv/uart/lib/j721e/${TARGET_PROCESSOR}/${BUILD_PROFILE}/ti.drv.uart.aer5f"
    "${PDK_SOURCE_DIR}/packages/ti/drv/i2c/lib/j721e/${TARGET_PROCESSOR}/${BUILD_PROFILE}/ti.drv.i2c.aer5f"
    "${PDK_SOURCE_DIR}/packages/ti/drv/udma/lib/j721e/${TARGET_CORE}/${BUILD_PROFILE}/udma.aer5f"
    "${PDK_SOURCE_DIR}/packages/ti/drv/gpio/lib/j721e/${TARGET_PROCESSOR}/${BUILD_PROFILE}/ti.drv.gpio.aer5f"
    "${PDK_SOURCE_DIR}/packages/ti/drv/pmic/lib/j721e_evm/${TARGET_PROCESSOR}/${BUILD_PROFILE}/pmic.aer5f"
    "${PDK_SOURCE_DIR}/packages/ti/drv/pm/lib/j721e/${TARGET_PROCESSOR}/${BUILD_PROFILE}/pm_lib.aer5f"
    "${PDK_SOURCE_DIR}/packages/ti/board/lib/j721e_evm/${TARGET_PROCESSOR}/${BUILD_PROFILE}/ti.board.aer5f"
    # "${CMAKE_SOURCE_DIR}/../../lib/${BUILD_PROFILE}/j721e_board.aer5f"
    "${PDK_SOURCE_DIR}/packages/ti/drv/sciclient/lib/j721e/${TARGET_CORE}/${BUILD_PROFILE}/sciclient.aer5f"
    "${PDK_SOURCE_DIR}/packages/ti/osal/lib/freertos/j721e/${TARGET_PROCESSOR}/${BUILD_PROFILE}/ti.osal.aer5f"
    "${PDK_SOURCE_DIR}/packages/ti/kernel/lib/j721e/${TARGET_CORE}/${BUILD_PROFILE}/ti.kernel.freertos.aer5f"
    "${PDK_SOURCE_DIR}/packages/ti/csl/lib/j721e/${TARGET_PROCESSOR}/${BUILD_PROFILE}/ti.csl.init.aer5f"
    "${PDK_SOURCE_DIR}/packages/ti/drv/spi/lib/j721e/r5f/${BUILD_PROFILE}/ti.drv.spi.aer5f"
    # "${CMAKE_SOURCE_DIR}/../../lib/${BUILD_PROFILE}/wx.spi.aer5f"
    "${LIBC_AR}"
)

# Link the necessary libraries (adjust paths to your SDK)
target_link_libraries(${PROJECT_NAME}
    "${ADDITIONAL_LIBS}"
    $<LINK_GROUP:RESCAN, ${GROUPED_LIBS}>
)

# Define the required linker flags (for linking in startup files, etc.)
target_link_options(${PROJECT_NAME} PRIVATE 
    -Werror 
    -Wl,-q 
    -Wl,-u,_c_int00 
    -Wl,--display_error_number 
    -Wl,--use_memcpy=fast 
    -Wl,--use_memset=fast 
    -Wl,--diag_suppress=10063-D 
    -Wl,--diag_suppress=10068-D 
    -Wl,--diag_suppress=10083-D 
    -Wl,-c 
    -mcpu=cortex-r5 
    -march=armv7-r 
    -Wl,--diag_suppress=10230-D  
    -Wl,-x 
    -Wl,--zero_init=on
)

# Set the output directory
set(EXECUTABLE_OUTPUT_PATH ${CMAKE_BINARY_DIR}/bin)

# Set the post-build commands (e.g., copy binaries to specific folder)
add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
    COMMAND ${CMAKE_COMMAND} -E copy ${EXECUTABLE_OUTPUT_PATH}/${PROJECT_NAME} ${CMAKE_SOURCE_DIR}/bin/${BUILD_PROFILE}/${PROJECT_NAME}_${TARGET_PROCESSOR}_${TARGET_CORE}.xer5f
)