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- # 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 ${CMAKE_CURRENT_LIST_DIR}")
- include(pico_pre_load_platform)
- # We want to configure correct toolchain prior to project load
- # todo perhaps this should be included by the platform instead?
- include(pico_pre_load_toolchain)
- macro(pico_sdk_init)
- if (NOT CMAKE_PROJECT_NAME)
- message(WARNING "pico_sdk_init() should be called after the project is created (and languages added)")
- endif()
- add_subdirectory(${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()
- endif()
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