drivers: video: Introduce video interface device

The main device that interface with application on memory.

Signed-off-by: Phi Bang Nguyen <[email protected]>

Author: ngphibang

cmake/linker_script/common/common-ram.cmake

@@ -127,6 +127,7 @@ endif()
 
 if(CONFIG_VIDEO)
   zephyr_iterable_section(NAME video_device GROUP DATA_REGION ${XIP_ALIGN_WITH_INPUT})
+  zephyr_iterable_section(NAME video_interface GROUP DATA_REGION ${XIP_ALIGN_WITH_INPUT})
 endif()
 
 if(CONFIG_LOG)

drivers/video/video.ld

@@ -1,3 +1,4 @@
 #include <zephyr/linker/iterable_sections.h>
 
 ITERABLE_SECTION_RAM(video_device, Z_LINK_ITERABLE_SUBALIGN)
+ITERABLE_SECTION_RAM(video_interface, Z_LINK_ITERABLE_SUBALIGN)

drivers/video/video_device.h

@@ -16,13 +16,22 @@ struct video_device {
 	sys_dlist_t ctrls;
 };
 
+struct video_interface {
+	const struct device *dev;
+};
+
 #define VIDEO_DEVICE_DEFINE(name, device, source)                                                  \
 	static STRUCT_SECTION_ITERABLE(video_device, name) = {                                     \
 		.dev = device,                                                                     \
 		.src_dev = source,                                                                 \
 		.ctrls = SYS_DLIST_STATIC_INIT(&name.ctrls),                                       \
 	}
 
+#define VIDEO_INTERFACE_DEFINE(name, device)                                                            \
+	static STRUCT_SECTION_ITERABLE(video_interface, name) = {                                \
+		.dev = device,                                                                     \
+	}
+
 struct video_device *video_find_vdev(const struct device *dev);
 
 #endif /* ZEPHYR_INCLUDE_DRIVERS_VIDEO_VIDEO_DEVICE_H_ */