mirror of
https://github.com/torvalds/linux.git
synced 2024-12-22 02:52:56 +00:00
baf98b0ad3
Despite using M2M in both the decoder and encoder, this driver used vb2_v4l2_buffer as its base buffer structure, and placed a list_head right after the buffer declaration in order to match the layout of a v4l2_m2m_buffer. This is very dangerous as it means the driver will break should the layout of v4l2_m2m_buffer change. Fix this by directly using v4l2_m2m_buffer and updating the sites that accessed the buffer accordingly. Signed-off-by: Alexandre Courbot <acourbot@chromium.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> [hverkuil-cisco@xs4all.nl: fix checkpatch warning] Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (c) 2016 MediaTek Inc.
|
|
* Author: PC Chen <pc.chen@mediatek.com>
|
|
* Tiffany Lin <tiffany.lin@mediatek.com>
|
|
*/
|
|
|
|
#ifndef _MTK_VCODEC_DEC_H_
|
|
#define _MTK_VCODEC_DEC_H_
|
|
|
|
#include <media/videobuf2-core.h>
|
|
#include <media/v4l2-mem2mem.h>
|
|
|
|
#define VCODEC_CAPABILITY_4K_DISABLED 0x10
|
|
#define VCODEC_DEC_4K_CODED_WIDTH 4096U
|
|
#define VCODEC_DEC_4K_CODED_HEIGHT 2304U
|
|
#define MTK_VDEC_MAX_W 2048U
|
|
#define MTK_VDEC_MAX_H 1088U
|
|
|
|
#define MTK_VDEC_IRQ_STATUS_DEC_SUCCESS 0x10000
|
|
|
|
/**
|
|
* struct vdec_fb - decoder frame buffer
|
|
* @base_y : Y plane memory info
|
|
* @base_c : C plane memory info
|
|
* @status : frame buffer status (vdec_fb_status)
|
|
*/
|
|
struct vdec_fb {
|
|
struct mtk_vcodec_mem base_y;
|
|
struct mtk_vcodec_mem base_c;
|
|
unsigned int status;
|
|
};
|
|
|
|
/**
|
|
* struct mtk_video_dec_buf - Private data related to each VB2 buffer.
|
|
* @m2m_buf: M2M buffer
|
|
* @list: link list
|
|
* @used: Capture buffer contain decoded frame data and keep in
|
|
* codec data structure
|
|
* @queued_in_vb2: Capture buffer is queue in vb2
|
|
* @queued_in_v4l2: Capture buffer is in v4l2 driver, but not in vb2
|
|
* queue yet
|
|
* @lastframe: Intput buffer is last buffer - EOS
|
|
* @error: An unrecoverable error occurs on this buffer.
|
|
* @frame_buffer: Decode status, and buffer information of Capture buffer
|
|
*
|
|
* Note : These status information help us track and debug buffer state
|
|
*/
|
|
struct mtk_video_dec_buf {
|
|
struct v4l2_m2m_buffer m2m_buf;
|
|
|
|
bool used;
|
|
bool queued_in_vb2;
|
|
bool queued_in_v4l2;
|
|
bool lastframe;
|
|
bool error;
|
|
struct vdec_fb frame_buffer;
|
|
};
|
|
|
|
extern const struct v4l2_ioctl_ops mtk_vdec_ioctl_ops;
|
|
extern const struct v4l2_m2m_ops mtk_vdec_m2m_ops;
|
|
|
|
|
|
/*
|
|
* mtk_vdec_lock/mtk_vdec_unlock are for ctx instance to
|
|
* get/release lock before/after access decoder hw.
|
|
* mtk_vdec_lock get decoder hw lock and set curr_ctx
|
|
* to ctx instance that get lock
|
|
*/
|
|
void mtk_vdec_unlock(struct mtk_vcodec_ctx *ctx);
|
|
void mtk_vdec_lock(struct mtk_vcodec_ctx *ctx);
|
|
int mtk_vcodec_dec_queue_init(void *priv, struct vb2_queue *src_vq,
|
|
struct vb2_queue *dst_vq);
|
|
void mtk_vcodec_dec_set_default_params(struct mtk_vcodec_ctx *ctx);
|
|
void mtk_vcodec_dec_release(struct mtk_vcodec_ctx *ctx);
|
|
int mtk_vcodec_dec_ctrls_setup(struct mtk_vcodec_ctx *ctx);
|
|
|
|
|
|
#endif /* _MTK_VCODEC_DEC_H_ */
|