drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h

   1 /*
   2  * Copyright (c) 2016 MediaTek Inc.
   3  * Author: PC Chen <pc.chen@mediatek.com>
   4  *         Tiffany Lin <tiffany.lin@mediatek.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 #ifndef _MTK_VCODEC_DEC_H_
  17 #define _MTK_VCODEC_DEC_H_
  18
  19 #include <media/videobuf2-core.h>
  20 #include <media/videobuf2-v4l2.h>
  21
  22 #define VCODEC_CAPABILITY_4K_DISABLED   0x10
  23 #define VCODEC_DEC_4K_CODED_WIDTH       4096U
  24 #define VCODEC_DEC_4K_CODED_HEIGHT      2304U
  25 #define MTK_VDEC_MAX_W  2048U
  26 #define MTK_VDEC_MAX_H  1088U
  27
  28 #define MTK_VDEC_IRQ_STATUS_DEC_SUCCESS        0x10000
  29
  30 /**
  31  * struct vdec_fb  - decoder frame buffer
  32  * @base_y      : Y plane memory info
  33  * @base_c      : C plane memory info
  34  * @status      : frame buffer status (vdec_fb_status)
  35  */
  36 struct vdec_fb {
  37         struct mtk_vcodec_mem   base_y;
  38         struct mtk_vcodec_mem   base_c;
  39         unsigned int    status;
  40 };
  41
  42 /**
  43  * struct mtk_video_dec_buf - Private data related to each VB2 buffer.
  44  * @b:          VB2 buffer
  45  * @list:       link list
  46  * @used:       Capture buffer contain decoded frame data and keep in
  47  *                      codec data structure
  48  * @ready_to_display:   Capture buffer not display yet
  49  * @queued_in_vb2:      Capture buffer is queue in vb2
  50  * @queued_in_v4l2:     Capture buffer is in v4l2 driver, but not in vb2
  51  *                      queue yet
  52  * @lastframe:          Intput buffer is last buffer - EOS
  53  * @frame_buffer:       Decode status, and buffer information of Capture buffer
  54  *
  55  * Note : These status information help us track and debug buffer state
  56  */
  57 struct mtk_video_dec_buf {
  58         struct vb2_v4l2_buffer  vb;
  59         struct list_head        list;
  60
  61         bool    used;
  62         bool    ready_to_display;
  63         bool    queued_in_vb2;
  64         bool    queued_in_v4l2;
  65         bool    lastframe;
  66         struct vdec_fb  frame_buffer;
  67 };
  68
  69 extern const struct v4l2_ioctl_ops mtk_vdec_ioctl_ops;
  70 extern const struct v4l2_m2m_ops mtk_vdec_m2m_ops;
  71
  72
  73 /*
  74  * mtk_vdec_lock/mtk_vdec_unlock are for ctx instance to
  75  * get/release lock before/after access decoder hw.
  76  * mtk_vdec_lock get decoder hw lock and set curr_ctx
  77  * to ctx instance that get lock
  78  */
  79 void mtk_vdec_unlock(struct mtk_vcodec_ctx *ctx);
  80 void mtk_vdec_lock(struct mtk_vcodec_ctx *ctx);
  81 int mtk_vcodec_dec_queue_init(void *priv, struct vb2_queue *src_vq,
  82                            struct vb2_queue *dst_vq);
  83 void mtk_vcodec_dec_set_default_params(struct mtk_vcodec_ctx *ctx);
  84 void mtk_vcodec_dec_release(struct mtk_vcodec_ctx *ctx);
  85 int mtk_vcodec_dec_ctrls_setup(struct mtk_vcodec_ctx *ctx);
  86
  87
  88 #endif /* _MTK_VCODEC_DEC_H_ */