Create controls for Nuvoton NPCM video driver to support setting capture mode of Video Capture/Differentiation (VCD) engine and getting the count of HEXTILE rectangles that is compressed by Encoding Compression Engine (ECE).
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| 1 | /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ | ||
| 2 | /* | ||
| 3 | * Controls header for NPCM video driver | ||
| 4 | * | ||
| 5 | * Copyright (C) 2022 Nuvoton Technologies | ||
| 6 | */ | ||
| 7 | |||
| 8 | #ifndef _UAPI_LINUX_NPCM_VIDEO_H | ||
| 9 | #define _UAPI_LINUX_NPCM_VIDEO_H | ||
| 10 | |||
| 11 | #include <linux/v4l2-controls.h> | ||
| 12 | |||
| 13 | /* | ||
| 14 | * Check Documentation/userspace-api/media/drivers/npcm-video.rst for control | ||
| 15 | * details. | ||
| 16 | */ | ||
| 17 | |||
| 18 | /* | ||
| 19 | * This control is meant to set the mode of NPCM Video Capture/Differentiation | ||
| 20 | * (VCD) engine. | ||
| 21 | * | ||
| 22 | * The VCD engine supports two modes: | ||
| 23 | * COMPLETE - Capture the next complete frame into memory. | ||
| 24 | * DIFF - Compare the incoming frame with the frame stored in memory, and | ||
| 25 | * updates the differentiated frame in memory. | ||
| 26 | */ | ||
| 27 | #define V4L2_CID_NPCM_CAPTURE_MODE (V4L2_CID_USER_NPCM_BASE + 0) | ||
| 28 | |||
| 29 | enum v4l2_npcm_capture_mode { | ||
| 30 | V4L2_NPCM_CAPTURE_MODE_COMPLETE = 0, /* COMPLETE mode */ | ||
| 31 | V4L2_NPCM_CAPTURE_MODE_DIFF = 1, /* DIFF mode */ | ||
| 32 | }; | ||
| 33 | |||
| 34 | /* | ||
| 35 | * This control is meant to get the count of compressed HEXTILE rectangles which | ||
| 36 | * is relevant to the number of differentiated frames if VCD is in DIFF mode. | ||
| 37 | * And the count will always be 1 if VCD is in COMPLETE mode. | ||
| 38 | */ | ||
| 39 | #define V4L2_CID_NPCM_RECT_COUNT (V4L2_CID_USER_NPCM_BASE + 1) | ||
| 40 | |||
| 41 | #endif /* _UAPI_LINUX_NPCM_VIDEO_H */ | ||