Initial Release
diff --git a/pico_sdk_init.cmake b/pico_sdk_init.cmake
new file mode 100644
index 0000000..63621d4
--- /dev/null
+++ b/pico_sdk_init.cmake
@@ -0,0 +1,54 @@
+# Initialize the PICO SDK
+# This file must be included prior to the project() call
+
+if (_PICO_SDK_INIT)
+ return()
+endif ()
+set(_PICO_SDK_INIT 1)
+
+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()
+
+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 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 is located at ${CMAKE_CURRENT_LIST_DIR}")
+
+include(pico_pre_load_platform)
+
+# todo perhaps this should be included by the platform instead?
+# We want to configure correct toolchain prior to project load
+include(pico_pre_load_toolchain)
+
+macro(pico_sdk_init)
+ if (NOT CMAKE_PROJECT_NAME)
+ message(WARNING "pico_sdk_init() should be called after the project is created (and languages added)")
+ endif()
+ add_subdirectory(${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)
+ message("Including custom CMakeLists.txt ${SHORT_NAME}")
+ add_subdirectory(${LIST_DIR} ${SHORT_NAME})
+ endforeach()
+endmacro()
+
