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