| # Pre-initialize the Raspberry Pi Pico SDK, setting up the platform and toolchain and some CMake utility functions |
| # This file must be included prior to the project() call |
| |
| # Note: this file is perhaps named badly, as it provides a method pico_sdk_init which |
| # the enclosing project calls LATER to actually "initialize" the SDK (by including the CMakeLists.txt from this |
| # same directory) |
| |
| if (NOT TARGET _pico_sdk_pre_init_marker) |
| add_library(_pico_sdk_pre_init_marker INTERFACE) |
| |
| function(pico_is_top_level_project VAR) |
| string(TOLOWER ${CMAKE_CURRENT_LIST_DIR} __list_dir) |
| string(TOLOWER ${CMAKE_SOURCE_DIR} __source_dir) |
| if (__source_dir STREQUAL __list_dir) |
| set(${VAR} 1 PARENT_SCOPE) |
| else() |
| set(${VAR} 0 PARENT_SCOPE) |
| endif() |
| endfunction() |
| |
| function(pico_message_debug MESSAGE) |
| # The log-level system was added in CMake 3.15. |
| if(${CMAKE_VERSION} VERSION_LESS "3.15.0") |
| message(${MESSAGE}) |
| else() |
| message(DEBUG ${MESSAGE}) |
| endif() |
| endfunction() |
| |
| if (NOT PICO_SDK_PATH) |
| set(PICO_SDK_PATH ${CMAKE_CURRENT_LIST_DIR}) |
| endif () |
| |
| get_filename_component(PICO_SDK_PATH "${PICO_SDK_PATH}" REALPATH BASE_DIR "${CMAKE_BINARY_DIR}") |
| |
| set(PICO_SDK_PATH ${CMAKE_CURRENT_LIST_DIR} CACHE PATH "Path to the Raspberry Pi Pico SDK" FORCE) |
| |
| list(APPEND CMAKE_MODULE_PATH ${PICO_SDK_PATH}/cmake) |
| |
| include(${CMAKE_CURRENT_LIST_DIR}/pico_sdk_version.cmake) |
| include(pico_utils) |
| |
| message("PICO_SDK_PATH is ${CMAKE_CURRENT_LIST_DIR}") |
| macro(pico_sdk_init) |
| if (NOT CMAKE_PROJECT_NAME) |
| message(WARNING "pico_sdk_init() should be called after the project is created (and languages added)") |
| endif() |
| add_subdirectory(${PICO_SDK_PATH} pico-sdk) |
| endmacro() |
| |
| macro(add_sub_list_dirs var) |
| foreach(LIST_DIR IN LISTS ${var}) |
| get_filename_component(SHORT_NAME "${LIST_DIR}" NAME) |
| pico_message_debug("Including custom CMakeLists.txt ${SHORT_NAME}") |
| add_subdirectory(${LIST_DIR} ${SHORT_NAME}) |
| endforeach() |
| endmacro() |
| |
| macro(add_sub_list_files var) |
| foreach(LIST_FILE IN LISTS ${var}) |
| pico_message_debug("Including custom CMake file ${LIST_FILE}") |
| include(${LIST_FILE}) |
| endforeach() |
| endmacro() |
| |
| macro(pico_register_common_scope_var NAME) |
| if (NOT ${NAME} IN_LIST PICO_PROMOTE_COMMON_SCOPE_VARS) |
| list(APPEND PICO_PROMOTE_COMMON_SCOPE_VARS ${NAME}) |
| endif() |
| endmacro() |
| |
| set(PICO_PROMOTE_COMMON_SCOPE_VARS |
| PICO_INCLUDE_DIRS |
| PICO_SDK_POST_LIST_DIRS |
| PICO_SDK_POST_LIST_FILES |
| PICO_CONFIG_HEADER_FILES |
| PICO_RP2040_CONFIG_HEADER_FILES |
| ) |
| |
| macro(pico_promote_common_scope_vars) |
| set(PICO_PROMOTE_COMMON_SCOPE_VARS ${PICO_PROMOTE_COMMON_SCOPE_VARS} PARENT_SCOPE) |
| foreach(VAR IN LISTS PICO_PROMOTE_COMMON_SCOPE_VARS) |
| SET(${VAR} ${${VAR}} PARENT_SCOPE) |
| endforeach() |
| endmacro() |
| |
| include(pico_pre_load_platform) |
| |
| # We want to configure correct toolchain prior to project load |
| # todo perhaps this should be included by the platform instead? |
| include(pico_pre_load_toolchain) |
| endif() |