Add support for platform automation

.github/workflows/rp2040-build.yml

@@ -34,6 +34,7 @@ jobs:
        uses: actions/checkout@v4.1.6
        with:
          repository: raspberrypi/pico-sdk
+         ref: 2.2.0
          path: _integ/rp2040-pico-sdk/pico-sdk
 
      - name: Link CMRX source

cmake/CMRX.cmake

@@ -1,13 +1,36 @@
 cmake_minimum_required(VERSION 3.18)
 
+
 find_program(PYTHON_EXE NAMES python3 python REQUIRED DOC "Python 3 executable")
 
+if (DEFINED CMRX_DEVICE)
+    set(DEVICE "${CMRX_DEVICE}")
+    string(LENGTH "${CMRX_DEVICE}" _DEV_LEN)
+    set(_DEV_PREFIX_LEN 2)
+    while(_DEV_PREFIX_LEN LESS _DEV_LEN)
+        string(SUBSTRING "${CMRX_DEVICE}" 0 ${_DEV_PREFIX_LEN} _DEV_PREFIX)
+        string(TOLOWER "${_DEV_PREFIX}" _DEV_PREFIX)
+        set(PLATFORM_SCRIPT "${CMAKE_CURRENT_LIST_DIR}/platform/${_DEV_PREFIX}.cmake")
+        if (EXISTS ${PLATFORM_SCRIPT})
+            include(${PLATFORM_SCRIPT})
+            break()
+        endif()
+        math(EXPR _DEV_PREFIX_LEN "${_DEV_PREFIX_LEN} + 1")
+    endwhile()
+endif()
+
 if ("${CMRX_ARCH}" STREQUAL "")
-    message(FATAL_ERROR "CMRX_ARCH not defined! Please define target architecture to be used!")
+    get_property(CMRX_ARCH GLOBAL PROPERTY CMRX_ARCH)
+    if (NOT DEFINED CMRX_ARCH)
+        message(FATAL_ERROR "CMRX_ARCH not defined! Please define target architecture to be used!")
+    endif()
 endif()
 
 if ("${CMRX_HAL}" STREQUAL "")
-    message(FATAL_ERROR "CMRX_HAL not defined! Please define target HAL to be used!")
+    get_property(CMRX_HAL GLOBAL PROPERTY CMRX_HAL)
+    if (NOT DEFINED CMRX_HAL)
+        message(FATAL_ERROR "CMRX_HAL not defined! Please define target HAL to be used!")
+    endif()
 endif()
 
 option(SW_TESTING_BUILD "Enabled hosted build. This can be used to build hosted unit tests." FALSE)

cmake/platform/rp2.cmake

@@ -0,0 +1,31 @@
+# Module automating support for PicoSDK-based projects for RP2xxx family of microcontrollers
+string(TOLOWER "${CMRX_DEVICE}" PICO_DEVICE)
+string(TOUPPER "${CMRX_DEVICE}" DEVICE)
+
+if (NOT DEFINED PICO_SDK_PATH)
+    message(FATAL_ERROR "Pico SDK path not defined! Set variable `PICO_SDK_PATH` to point to Pico SDK location.")
+endif()
+
+if (DEFINED CMRX_LINKER_FILE)
+    if (NOT EXISTS "${CMRX_LINKER_FILE}")
+        message(FATAL_ERROR "Specified linker file doesn't exist: ${CMRX_LINKER_FILE}")
+    endif()
+else()
+    set(CMSIS_LINKER_FILE "${CMRX_LINKER_FILE}")
+    set(CMSIS_LINKER_FILE ${PICO_SDK_PATH}/rp2_common/pico_crt0/${PICO_DEVICE}/memmap_default.ld)
+    if (NOT EXISTS "{CMSIS_LINKER_FILE}")
+        # In the past, PicoSDK changed the location of linker files at least once
+        message(FATAL_ERROR "Unable to find Pico SDK linker file for ${DEVICE}! Check Pico SDK installation and compatibility!")
+    endif()
+endif()
+
+set(CMSIS_ROOT ${PICO_SDK_PATH}/src/rp2_common/cmsis/stub/CMSIS)
+if (NOT EXISTS "${CMSIS_ROOT}")
+    message(FATAL_ERROR "Unable to find Pico SDK CMSIS headers! Check Pico SDK installation and compatibility!")
+endif()
+
+include(../FindCMSIS.cmake)
+
+set_property(GLOBAL PROPERTY CMRX_ARCH arm)
+set_property(GLOBAL PROPERTY CMRX_HAL cmsis)
+

cmake/platform/stm32.cmake

@@ -0,0 +1,45 @@
+# Module automating support for CubeMX-based projects for STM32 family of microcontrollers
+
+set_property(GLOBAL PROPERTY CMRX_ARCH arm)
+set_property(GLOBAL PROPERTY CMRX_HAL cmsis)
+set(DEVICE ${CMRX_DEVICE})
+string(TOUPPER "${CMRX_DEVICE}" _CMRX_DEVICE_UPCASE)
+add_definitions(-D${_CMRX_DEVICE_UPCASE})
+string(SUBSTRING "${CMRX_DEVICE}" 0 7 _STM_FAMILY)
+string(TOLOWER "${_STM_FAMILY}" _STM_FAMILY)
+
+set(SYSTEM_INCLUDE_FILENAME system_${_STM_FAMILY}xx.h)
+
+# Assume default CubeMX CMake project layout
+if (NOT EXISTS ${CMAKE_SOURCE_DIR}/Drivers/CMSIS)
+    message(FATAL_ERROR "CubeMX CMSIS package not found! STM32 platform support assumes default CubeMX project layout. Reorganize project or use manual HAL integration")
+endif()
+
+set(CMSIS_ROOT ${CMAKE_SOURCE_DIR}/Drivers/CMSIS)
+
+if (DEFINED CMRX_LINKER_FILE)
+    if (NOT EXISTS "${CMRX_LINKER_FILE}")
+        message(FATAL_ERROR "Specified linker file doesn't exist: ${CMRX_LINKER_FILE}")
+    endif()
+    set(CMSIS_LINKER_FILE "${CMRX_LINKER_FILE}")
+else()
+    file(GLOB CMSIS_LINKER_FILE LIST_DIRECTORIES false "${CMAKE_SOURCE_DIR}/${_STM_FAMILY}*.ld")
+    list(LENGTH CMSIS_LINKER_FILE _LINKER_FILES_FOUND)
+    if (NOT "${_LINKER_FILES_FOUND}" STREQUAL 1)
+        message(FATAL_ERROR "Unable to identify project linker file automatically! Either set variable `CMRX_LINKER_FILE` to contain path to linker file used or place exactly one linker file having pattern ${_STM_FAMILY}*.ld into ${CMAKE_SOURCE_DIR}")
+    endif()
+endif()
+
+include(${CMAKE_CURRENT_LIST_DIR}/../FindCMSIS.cmake)
+
+if (NOT TARGET stm32cubemx)
+    message(FATAL_ERROR "Target stm32cubemx not defined! Please, add directory cmake/stm32cubemx before including CMRX CMake module so CubeMX can be detected properly.")
+endif()
+
+get_target_property(CUBEMX_INCLUDE_DIRECTORIES stm32cubemx INTERFACE_INCLUDE_DIRECTORIES)
+get_target_property(CUBEMX_COMPILE_DEFINITIONS stm32cubemx INTERFACE_COMPILE_DEFINITIONS)
+
+add_library(stm32cubemx_headers INTERFACE)
+target_include_directories(stm32cubemx_headers INTERFACE ${CUBEMX_INCLUDE_DIRECTORIES})
+target_compile_definitions(stm32cubemx_headers INTERFACE ${CUBEMX_COMPILE_DEFINITIONS})
+