Rough implementation of USB host

cmake/FindUSBHost.cmake

@@ -0,0 +1,117 @@
+IF(NOT STM32Cube_DIR)
+    SET(STM32Cube_DIR "/opt/STM32Cube_FW_F1_V1.2.0")
+    MESSAGE(STATUS "No STM32Cube_DIR specified, using default: " ${STM32Cube_DIR})
+ENDIF()
+
+SET(USBHost_HEADERS 
+    Core/Inc/usbh_ctlreq.h
+    Core/Inc/usbh_ioreq.h
+    Core/Inc/usbh_core.h
+    Core/Src/usbh_pipes.h
+)
+
+SET(USBHost_SRC
+    Core/Src/usbh_ctlreq.c
+    Core/Src/usbh_core.c
+    Core/Src/usbh_ioreq.c
+    Core/Src/usbh_pipes.c
+)
+
+SET(USBHost_COMPONENTS CDC AUDIO MSC HID MTP)
+
+ADD_DEFINITIONS(-DUSE_USB_HS)
+ADD_DEFINITIONS(-DUSE_HAL_DRIVER)
+
+SET(USBHost_COMPONENTS_CDC_HEADERS
+    Class/CDC/Inc/usbh_cdc.h
+)
+SET(USBHost_COMPONENTS_CDC_SOURCES
+    Class/CDC/Src/usbh_cdc.c
+)
+
+SET(USBHost_COMPONENTS_AUDIO_HEADERS
+    Class/AUDIO/Inc/usbh_audio.h
+)
+SET(USBHost_COMPONENTS_AUDIO_SOURCES
+    Class/AUDIO/Src/usbh_audio.c
+)
+
+SET(USBHost_COMPONENTS_MSC_HEADERS
+    Class/MSC/Inc/usbh_msc_scsi.h
+#    Class/MSC/Inc/usbh_msc_data.h
+    Class/MSC/Inc/usbh_msc.h
+    Class/MSC/Inc/usbh_msc_bot.h
+)
+SET(USBHost_COMPONENTS_MSC_SOURCES
+    Class/MSC/Src/usbh_msc.c
+#    Class/MSC/Src/usbh_msc_data.c
+    Class/MSC/Src/usbh_msc_bot.c
+    Class/MSC/Src/usbh_msc_scsi.c
+)
+
+SET(USBHost_COMPONENTS_HID_HEADERS  
+    Class/HID/Inc/usbh_hid_keybd.h
+    Class/HID/Inc/usbh_hid_mouse.h
+    Class/HID/Inc/usbh_hid_parser.h
+    Class/HID/Inc/usbh_hid_usage.h
+    Class/HID/Inc/usbh_hid.h
+)
+SET(USBHost_COMPONENTS_HID_SOURCES
+    Class/HID/Src/usbh_hid_keybd.c
+    Class/HID/Src/usbh_hid_mouse.c
+    Class/HID/Src/usbh_hid_parser.c
+    Class/HID/Src/usbh_hid.c
+)
+
+SET(USBHost_COMPONENTS_MTP_HEADERS
+    Class/MTP/Inc/usbh_mtp_ptp.h
+    Class/MTP/Inc/usbh_mtp.h
+)
+SET(USBHost_COMPONENTS_MTP_SOURCES
+    Class/MTP/Src/usbh_mtp_ptp.c
+    Class/MTP/Src/usbh_mtp.c
+)
+
+IF(NOT USBHost_FIND_COMPONENTS)
+    SET(USBHost_FIND_COMPONENTS ${USBHost_COMPONENTS})
+    MESSAGE(STATUS "No USBHost components selected, using all: ${USBHost_FIND_COMPONENTS}")
+ENDIF()
+
+MESSAGE(STATUS "USBHost components: ${USBHost_FIND_COMPONENTS}")
+
+FOREACH(cmp ${USBHost_FIND_COMPONENTS})
+    LIST(FIND USBHost_COMPONENTS ${cmp} USBHost_FOUND_INDEX)
+    IF(${USBHost_FOUND_INDEX} LESS 0)
+        MESSAGE(FATAL_ERROR "Unknown USBHost component: ${cmp}. Available components: ${USBHost_COMPONENTS}")
+    ENDIF()
+    LIST(FIND USBHost_COMPONENTS ${cmp} USBHost_FOUND_INDEX)
+    IF(NOT (${USBHost_FOUND_INDEX} LESS 0))
+        LIST(APPEND USBHost_HEADERS ${USBHost_COMPONENTS_${cmp}_HEADERS})
+        LIST(APPEND USBHost_SRC ${USBHost_COMPONENTS_${cmp}_SOURCES})
+    ENDIF()
+ENDFOREACH()
+
+LIST(REMOVE_DUPLICATES USBHost_HEADERS)
+LIST(REMOVE_DUPLICATES USBHost_SRC)
+
+FOREACH(INC ${USBHost_HEADERS})
+    SET(INC_FILE INC_FILE-NOTFOUND)
+    GET_FILENAME_COMPONENT(INC_FILE ${STM32Cube_DIR}/Middlewares/ST/STM32_USB_Host_Library/${INC} DIRECTORY)
+    MESSAGE(STATUS "Found ${INC}: ${INC_FILE}")
+    LIST(APPEND USBHost_INCLUDE_DIRS ${INC_FILE})
+ENDFOREACH()
+LIST(REMOVE_DUPLICATES USBHost_INCLUDE_DIRS)
+
+FOREACH(SRC ${USBHost_SRC})
+    SET(SRC_FILE SRC_FILE-NOTFOUND)
+    FIND_FILE(SRC_FILE ${SRC}
+        HINTS ${STM32Cube_DIR}/Middlewares/ST/STM32_USB_Host_Library
+        CMAKE_FIND_ROOT_PATH_BOTH
+    )
+    MESSAGE(STATUS "Found ${SRC}: ${SRC_FILE}")
+    LIST(APPEND USBHost_SOURCES ${SRC_FILE})
+ENDFOREACH()
+
+INCLUDE(FindPackageHandleStandardArgs)
+
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(USBHost DEFAULT_MSG USBHost_INCLUDE_DIRS USBHost_SOURCES)