1/* 2 * vsp1_video.h -- R-Car VSP1 Video Node 3 * 4 * Copyright (C) 2013-2015 Renesas Electronics Corporation 5 * 6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 */ 13#ifndef __VSP1_VIDEO_H__ 14#define __VSP1_VIDEO_H__ 15 16#include <linux/list.h> 17#include <linux/spinlock.h> 18#include <linux/wait.h> 19 20#include <media/media-entity.h> 21#include <media/videobuf2-v4l2.h> 22 23struct vsp1_video; 24 25/* 26 * struct vsp1_format_info - VSP1 video format description 27 * @mbus: media bus format code 28 * @fourcc: V4L2 pixel format FCC identifier 29 * @planes: number of planes 30 * @bpp: bits per pixel 31 * @hwfmt: VSP1 hardware format 32 * @swap_yc: the Y and C components are swapped (Y comes before C) 33 * @swap_uv: the U and V components are swapped (V comes before U) 34 * @hsub: horizontal subsampling factor 35 * @vsub: vertical subsampling factor 36 * @alpha: has an alpha channel 37 */ 38struct vsp1_format_info { 39 u32 fourcc; 40 unsigned int mbus; 41 unsigned int hwfmt; 42 unsigned int swap; 43 unsigned int planes; 44 unsigned int bpp[3]; 45 bool swap_yc; 46 bool swap_uv; 47 unsigned int hsub; 48 unsigned int vsub; 49 bool alpha; 50}; 51 52enum vsp1_pipeline_state { 53 VSP1_PIPELINE_STOPPED, 54 VSP1_PIPELINE_RUNNING, 55 VSP1_PIPELINE_STOPPING, 56}; 57 58/* 59 * struct vsp1_pipeline - A VSP1 hardware pipeline 60 * @media: the media pipeline 61 * @irqlock: protects the pipeline state 62 * @lock: protects the pipeline use count and stream count 63 */ 64struct vsp1_pipeline { 65 struct media_pipeline pipe; 66 67 spinlock_t irqlock; 68 enum vsp1_pipeline_state state; 69 wait_queue_head_t wq; 70 71 struct mutex lock; 72 unsigned int use_count; 73 unsigned int stream_count; 74 unsigned int buffers_ready; 75 76 unsigned int num_video; 77 unsigned int num_inputs; 78 struct vsp1_rwpf *inputs[VSP1_MAX_RPF]; 79 struct vsp1_rwpf *output; 80 struct vsp1_entity *bru; 81 struct vsp1_entity *lif; 82 struct vsp1_entity *uds; 83 struct vsp1_entity *uds_input; 84 85 struct list_head entities; 86}; 87 88static inline struct vsp1_pipeline *to_vsp1_pipeline(struct media_entity *e) 89{ 90 if (likely(e->pipe)) 91 return container_of(e->pipe, struct vsp1_pipeline, pipe); 92 else 93 return NULL; 94} 95 96struct vsp1_video_buffer { 97 struct vb2_v4l2_buffer buf; 98 struct list_head queue; 99 100 dma_addr_t addr[3]; 101 unsigned int length[3]; 102}; 103 104static inline struct vsp1_video_buffer * 105to_vsp1_video_buffer(struct vb2_v4l2_buffer *vbuf) 106{ 107 return container_of(vbuf, struct vsp1_video_buffer, buf); 108} 109 110struct vsp1_video_operations { 111 void (*queue)(struct vsp1_video *video, struct vsp1_video_buffer *buf); 112}; 113 114struct vsp1_video { 115 struct vsp1_device *vsp1; 116 struct vsp1_entity *rwpf; 117 118 const struct vsp1_video_operations *ops; 119 120 struct video_device video; 121 enum v4l2_buf_type type; 122 struct media_pad pad; 123 124 struct mutex lock; 125 struct v4l2_pix_format_mplane format; 126 const struct vsp1_format_info *fmtinfo; 127 128 struct vsp1_pipeline pipe; 129 unsigned int pipe_index; 130 131 struct vb2_queue queue; 132 void *alloc_ctx; 133 spinlock_t irqlock; 134 struct list_head irqqueue; 135 unsigned int sequence; 136}; 137 138static inline struct vsp1_video *to_vsp1_video(struct video_device *vdev) 139{ 140 return container_of(vdev, struct vsp1_video, video); 141} 142 143int vsp1_video_init(struct vsp1_video *video, struct vsp1_entity *rwpf); 144void vsp1_video_cleanup(struct vsp1_video *video); 145 146void vsp1_pipeline_frame_end(struct vsp1_pipeline *pipe); 147 148void vsp1_pipeline_propagate_alpha(struct vsp1_pipeline *pipe, 149 struct vsp1_entity *input, 150 unsigned int alpha); 151 152void vsp1_pipelines_suspend(struct vsp1_device *vsp1); 153void vsp1_pipelines_resume(struct vsp1_device *vsp1); 154 155#endif /* __VSP1_VIDEO_H__ */ 156