/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
* Controls header for NPCM video driver
*
* Copyright (C) 2022 Nuvoton Technologies
*/
#ifndef _LINUX_NPCM_VIDEO_H
#define _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 /* _LINUX_NPCM_VIDEO_H */
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