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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (c) 2016 MediaTek Inc.
4 * Author: PC Chen <pc.chen@mediatek.com>
5 * Tiffany Lin <tiffany.lin@mediatek.com>
6 */
7
8#ifndef _MTK_VCODEC_DEC_H_
9#define _MTK_VCODEC_DEC_H_
10
11#include <media/videobuf2-core.h>
12#include <media/v4l2-mem2mem.h>
13
14#define VCODEC_DEC_ALIGNED_64 64
15#define VCODEC_CAPABILITY_4K_DISABLED 0x10
16#define VCODEC_DEC_4K_CODED_WIDTH 4096U
17#define VCODEC_DEC_4K_CODED_HEIGHT 2304U
18#define MTK_VDEC_MAX_W 2048U
19#define MTK_VDEC_MAX_H 1088U
20#define MTK_VDEC_MIN_W 64U
21#define MTK_VDEC_MIN_H 64U
22
23#define MTK_VDEC_IRQ_STATUS_DEC_SUCCESS 0x10000
24
25/**
26 * struct vdec_fb - decoder frame buffer
27 * @base_y : Y plane memory info
28 * @base_c : C plane memory info
29 * @status : frame buffer status (vdec_fb_status)
30 */
31struct vdec_fb {
32 struct mtk_vcodec_mem base_y;
33 struct mtk_vcodec_mem base_c;
34 unsigned int status;
35};
36
37/**
38 * struct mtk_video_dec_buf - Private data related to each VB2 buffer.
39 * @m2m_buf: M2M buffer
40 * @list: link list
41 * @used: Capture buffer contain decoded frame data and keep in
42 * codec data structure
43 * @queued_in_vb2: Capture buffer is queue in vb2
44 * @queued_in_v4l2: Capture buffer is in v4l2 driver, but not in vb2
45 * queue yet
46 * @error: An unrecoverable error occurs on this buffer.
47 * @frame_buffer: Decode status, and buffer information of Capture buffer
48 * @bs_buffer: Output buffer info
49 *
50 * Note : These status information help us track and debug buffer state
51 */
52struct mtk_video_dec_buf {
53 struct v4l2_m2m_buffer m2m_buf;
54
55 bool used;
56 bool queued_in_vb2;
57 bool queued_in_v4l2;
58 bool error;
59
60 union {
61 struct vdec_fb frame_buffer;
62 struct mtk_vcodec_mem bs_buffer;
63 };
64};
65
66extern const struct v4l2_ioctl_ops mtk_vdec_ioctl_ops;
67extern const struct v4l2_m2m_ops mtk_vdec_m2m_ops;
68extern const struct media_device_ops mtk_vcodec_media_ops;
69extern const struct mtk_vcodec_dec_pdata mtk_vdec_8173_pdata;
70extern const struct mtk_vcodec_dec_pdata mtk_vdec_8183_pdata;
71extern const struct mtk_vcodec_dec_pdata mtk_lat_sig_core_pdata;
72extern const struct mtk_vcodec_dec_pdata mtk_vdec_single_core_pdata;
73
74
75/*
76 * mtk_vdec_lock/mtk_vdec_unlock are for ctx instance to
77 * get/release lock before/after access decoder hw.
78 * mtk_vdec_lock get decoder hw lock and set curr_ctx
79 * to ctx instance that get lock
80 */
81void mtk_vdec_unlock(struct mtk_vcodec_ctx *ctx);
82void mtk_vdec_lock(struct mtk_vcodec_ctx *ctx);
83int mtk_vcodec_dec_queue_init(void *priv, struct vb2_queue *src_vq,
84 struct vb2_queue *dst_vq);
85void mtk_vcodec_dec_set_default_params(struct mtk_vcodec_ctx *ctx);
86void mtk_vcodec_dec_release(struct mtk_vcodec_ctx *ctx);
87
88/*
89 * VB2 ops
90 */
91int vb2ops_vdec_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
92 unsigned int *nplanes, unsigned int sizes[],
93 struct device *alloc_devs[]);
94int vb2ops_vdec_buf_prepare(struct vb2_buffer *vb);
95void vb2ops_vdec_buf_finish(struct vb2_buffer *vb);
96int vb2ops_vdec_buf_init(struct vb2_buffer *vb);
97int vb2ops_vdec_start_streaming(struct vb2_queue *q, unsigned int count);
98void vb2ops_vdec_stop_streaming(struct vb2_queue *q);
99
100
101#endif /* _MTK_VCODEC_DEC_H_ */