Update cmake file for IDB <= 5.3

Author: cnadler86

src/micropython.cmake

@@ -1,47 +1,73 @@
-# Include the py.cmake for additional macro micropy_gather_target_properties usage
 include(${MICROPY_DIR}/py/py.cmake)
 
-# Create an INTERFACE library for the camera module and sdd source files to the library
+# IDF version >= 5.4 not supported yet
+message(STATUS "IDF_VERSION: ${IDF_VER}")
+if (NOT IDF_VERSION_MINOR VERSION_LESS 4)
+    message(FATAL_ERROR "ESP-IDF version >= 5.4 or later is not supported by micropython with the esp32-camera yet. Please use IDF 5.2 or 5.3")
+endif()
+
 add_library(usermod_mp_camera INTERFACE)
+
 target_sources(usermod_mp_camera INTERFACE
     ${CMAKE_CURRENT_LIST_DIR}/modcamera.c
     ${CMAKE_CURRENT_LIST_DIR}/modcamera_api.c
 )
 
-if(NOT ESP32_CAMERA_DIR)
-    set(ESP32_CAMERA_DIR "${IDF_PATH}/components/esp32-camera")
-endif()
-
-message("Camera Dir: ${ESP32_CAMERA_DIR}")
+# Prefer user-defined ESP32_CAMERA_DIR if provided
+if(DEFINED ESP32_CAMERA_DIR AND EXISTS "${ESP32_CAMERA_DIR}")
+    message(STATUS "Using user-defined ESP32 Camera directory: ${ESP32_CAMERA_DIR}")
 
-if(EXISTS "${ESP32_CAMERA_DIR}")
     target_include_directories(usermod_mp_camera INTERFACE
         ${CMAKE_CURRENT_LIST_DIR}
         ${ESP32_CAMERA_DIR}/driver/include
-        ${ESP32_CAMERA_DIR}/driver/private_include
         ${ESP32_CAMERA_DIR}/conversions/include
+        ${ESP32_CAMERA_DIR}/driver/private_include
         ${ESP32_CAMERA_DIR}/conversions/private_include
         ${ESP32_CAMERA_DIR}/sensors/private_include
     )
+
+# If no manual directory is provided, try to fetch it from ESP-IDF
 else()
-    target_include_directories(usermod_mp_camera INTERFACE
-        ${CMAKE_CURRENT_LIST_DIR})
-endif()
+    idf_component_get_property(CAMERA_INCLUDES esp32-camera INCLUDE_DIRS)
+    idf_component_get_property(CAMERA_PRIV_INCLUDES esp32-camera PRIV_INCLUDE_DIRS)
+    idf_component_get_property(CAMERA_DIR esp32-camera COMPONENT_DIR)
 
-# Add the include directories to the target
-target_include_directories(usermod_mp_camera INTERFACE ${MOD_INCLUDES})
+    if(CAMERA_DIR)
+        message(STATUS "Using ESP32 Camera component from ESP-IDF: ${CAMERA_DIR}")
 
-# Add compile definitions if MICROPY_CAMERA_MODEL is defined
+        # Add public include directories from ESP-IDF
+        if(CAMERA_INCLUDES)
+            list(TRANSFORM CAMERA_INCLUDES PREPEND ${CAMERA_DIR}/)
+            target_include_directories(usermod_mp_camera INTERFACE ${CAMERA_INCLUDES})
+        endif()
+
+        # Add private include directories from ESP-IDF
+        if(CAMERA_PRIV_INCLUDES)
+            list(TRANSFORM CAMERA_PRIV_INCLUDES PREPEND ${CAMERA_DIR}/)
+            target_include_directories(usermod_mp_camera INTERFACE ${CAMERA_PRIV_INCLUDES})
+        endif()
+    else()
+        message(WARNING "ESP32 Camera component not found in ESP-IDF!")
+        target_include_directories(usermod_mp_camera PUBLIC ${CMAKE_CURRENT_LIST_DIR})
+    endif()
+endif()
+
+# Define MICROPY_CAMERA_MODEL if specified
 if (MICROPY_CAMERA_MODEL)
-    target_compile_definitions(usermod_mp_camera INTERFACE MICROPY_CAMERA_MODEL_${MICROPY_CAMERA_MODEL}=1)
+    target_compile_definitions(usermod_mp_camera INTERFACE 
+        MICROPY_CAMERA_MODEL_${MICROPY_CAMERA_MODEL}=1
+    )
 endif()
 
-# Add compile definitions if MP_CAMERA_DRIVER_VERSION is defined
+# Define MP_CAMERA_DRIVER_VERSION if specified
 if (MP_CAMERA_DRIVER_VERSION)
-    target_compile_definitions(usermod_mp_camera INTERFACE MP_CAMERA_DRIVER_VERSION=\"${MP_CAMERA_DRIVER_VERSION}\")
+    target_compile_definitions(usermod_mp_camera INTERFACE 
+        MP_CAMERA_DRIVER_VERSION=\"${MP_CAMERA_DRIVER_VERSION}\"
+    )
 endif()
 
-# Link the usermod_mp_camera library to the main usermod target
+# Link the camera module with the main usermod target
 target_link_libraries(usermod INTERFACE usermod_mp_camera)
 
+# Gather target properties for MicroPython build system
 micropy_gather_target_properties(usermod_mp_camera)