cmake_minimum_required(VERSION 3.29)

project(pico-stm32-playground LANGUAGES C ASM)

set(CMAKE_C_STANDARD 11)
set(CMAKE_C_STANDARD_REQUIRED ON)
set(CMAKE_C_EXTENSIONS ON)

# Set up STM32 HAL
set(STM32_HAL_DEFINES
    STM32F103xB
    HSE_VALUE=16000000U
)

set(HAL_DIR ${CMAKE_CURRENT_SOURCE_DIR}/HAL)

add_library(stm32-hal STATIC)

target_include_directories(stm32-hal PUBLIC
    ${HAL_DIR}/Drivers/CMSIS/Include
    ${HAL_DIR}/Drivers/CMSIS/Device/ST/STM32F1xx/Include
    ${HAL_DIR}/Drivers/STM32F1xx_HAL_Driver/Inc
    include/
)

target_compile_definitions(stm32-hal PUBLIC
    ${STM32_HAL_DEFINES}
)

target_sources(stm32-hal PRIVATE
    # LL drivers
    ${HAL_DIR}/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_adc.c
    ${HAL_DIR}/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_crc.c
    ${HAL_DIR}/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_dma.c
    ${HAL_DIR}/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_exti.c
    ${HAL_DIR}/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_gpio.c
    ${HAL_DIR}/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_i2c.c
    ${HAL_DIR}/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_pwr.c
    ${HAL_DIR}/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_rcc.c
    ${HAL_DIR}/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_rtc.c
    ${HAL_DIR}/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_spi.c
    ${HAL_DIR}/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_tim.c
    ${HAL_DIR}/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_usart.c
    ${HAL_DIR}/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_utils.c
    # Startup code
    ${HAL_DIR}/Drivers/CMSIS/Device/ST/STM32F1xx/Source/Templates/gcc/startup_stm32f103xb.s
    ${HAL_DIR}/Drivers/CMSIS/Device/ST/STM32F1xx/Source/Templates/system_stm32f1xx.c
)

# Set up target executable
add_executable(pico-stm32-playground)

target_link_libraries(pico-stm32-playground
    PRIVATE stm32-hal
)

target_sources(pico-stm32-playground PRIVATE
    src/main.c
)

# clang-format
add_custom_target(check-format
    find include/ src/ -iname '*.[ch]' -exec clang-format -Werror --dry-run {} +
    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
)
add_custom_target(clang-format
    find include/ src/ -iname '*.[ch]' -exec clang-format -i {} +
    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
)