From b6b9b0eed534c8ca1e3579b051a0b83e9764077d Mon Sep 17 00:00:00 2001
From: Alex Hoffman <alxhoff@gmail.com>
Date: Tue, 23 Jun 2020 12:07:01 +0200
Subject: [PATCH] Cmake module to find STM32 Discovery library files

---
 cmake/FindSTM32Discovery.cmake | 52 ++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 cmake/FindSTM32Discovery.cmake

diff --git a/cmake/FindSTM32Discovery.cmake b/cmake/FindSTM32Discovery.cmake
new file mode 100644
index 00000000..5cb1faa9
--- /dev/null
+++ b/cmake/FindSTM32Discovery.cmake
@@ -0,0 +1,52 @@
+SET(DISCOVERY_COMPONENTS i2c_ee ioe l3gd20 lcd sdram)
+
+IF(NOT STM32Discovery_FIND_COMPONENTS)
+    SET(STM32Discovery_FIND_COMPONENTS ${DISCOVERY_COMPONENTS})
+    MESSAGE(STATUS "No STM32 Discovery components selected, using all: ${DISCOVERY_COMPONENTS}")
+ENDIF()
+
+SET(DISC_PREFIX stm32f429i_discovery)
+
+SET(DISC_HEADERS
+    ${DISC_PREFIX}.h
+    )
+
+SET(DISC_SRCS
+    ${DISC_PREFIX}.c
+    )
+
+FOREACH(cmp ${STM32Discovery_FIND_COMPONENTS})
+    LIST(FIND DISCOVERY_COMPONENTS ${cmp} DISC_FOUND_INDEX)
+    IF(${DISC_FOUND_INDEX} LESS 0)
+        MESSAGE(FATAL_ERROR "Unknown STM32 Discovery component: ${cmp}. Available components: ${DISCOVERY_COMPONENTS}")
+    ELSE()
+        LIST(APPEND DISC_HEADERS ${DISC_PREFIX}_${cmp}.h)
+        LIST(APPEND DISC_SRCS ${DISC_PREFIX}_${cmp}.c)
+    ENDIF()
+ENDFOREACH()
+
+LIST(REMOVE_DUPLICATES DISC_HEADERS)
+LIST(REMOVE_DUPLICATES DISC_SRCS)
+
+FOREACH(HEADER ${DISC_HEADERS})
+    FIND_PATH(STM32Discovery_INCLUDE_DIR ${DISC_HEADERS}
+        PATH_SUFFIXES Utilities
+        HINTS ${STM32Discovery_DIR}/Utilities/STM32F429I-Discovery
+        CMAKE_FIND_ROOT_PATH_BOTH
+        )
+ENDFOREACH()
+
+FOREACH(DISC_SRC ${DISC_SRCS})
+    STRING(MAKE_C_IDENTIFIER "${DISC_SRC}" DISC_SRC_CLEAN)
+    SET(DISC_${DISC_SRC_CLEAN}_FILE DISC_SRC_FILE-NOTFOUND)
+    FIND_FILE(DISC_${DISC_SRC_CLEAN}_FILE ${DISC_SRC}
+        PATH_SUFFIXES Utilities STM32F429I-Discovery
+        HINTS ${STM32Discovery_DIR}/Utilities/STM32F429I-Discovery
+        CMAKE_FIND_ROOT_PATH_BOTH
+        )
+    LIST(APPEND STM32Discovery_SOURCES ${DISC_${DISC_SRC_CLEAN}_FILE})
+ENDFOREACH()
+
+INCLUDE(FindPackageHandleStandardArgs)
+
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(STM32Discovery DEFAULT_MSG STM32Discovery_INCLUDE_DIR STM32Discovery_SOURCES)