/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
* Controls header for NPCM video driver
*
* Copyright ( C ) 2022 Nuvoton Technologies
*/
#ifndef _UAPI_LINUX_NPCM_VIDEO_H
#define _UAPI_LINUX_NPCM_VIDEO_H
#include <linux/v4l2-controls.h>
/*
* Check Documentation / userspace - api / media / drivers / npcm - video . rst for control
* details .
*/
/*
* This control is meant to set the mode of NPCM Video Capture / Differentiation
* ( VCD ) engine .
*
* The VCD engine supports two modes :
* COMPLETE - Capture the next complete frame into memory .
* DIFF - Compare the incoming frame with the frame stored in memory , and
* updates the differentiated frame in memory .
*/
#define V4L2_CID_NPCM_CAPTURE_MODE (V4L2_CID_USER_NPCM_BASE + 0 )
enum v4l2_npcm_capture_mode {
V4L2_NPCM_CAPTURE_MODE_COMPLETE = 0 , /* COMPLETE mode */
V4L2_NPCM_CAPTURE_MODE_DIFF = 1 , /* DIFF mode */
};
/*
* This control is meant to get the count of compressed HEXTILE rectangles which
* is relevant to the number of differentiated frames if VCD is in DIFF mode .
* And the count will always be 1 if VCD is in COMPLETE mode .
*/
#define V4L2_CID_NPCM_RECT_COUNT (V4L2_CID_USER_NPCM_BASE + 1 )
#endif /* _UAPI_LINUX_NPCM_VIDEO_H */
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