cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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mtk_vcodec_dec.h (3149B)

      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_ */