drivers/media/platform/qcom/camss-8x16/camss-video.h

   1 /*
   2  * camss-video.h
   3  *
   4  * Qualcomm MSM Camera Subsystem - V4L2 device node
   5  *
   6  * Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
   7  * Copyright (C) 2015-2017 Linaro Ltd.
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 and
  11  * only version 2 as published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  */
  18 #ifndef QC_MSM_CAMSS_VIDEO_H
  19 #define QC_MSM_CAMSS_VIDEO_H
  20
  21 #include <linux/mutex.h>
  22 #include <linux/videodev2.h>
  23 #include <media/media-entity.h>
  24 #include <media/v4l2-dev.h>
  25 #include <media/v4l2-device.h>
  26 #include <media/v4l2-fh.h>
  27 #include <media/v4l2-mediabus.h>
  28 #include <media/videobuf2-v4l2.h>
  29
  30 struct camss_buffer {
  31         struct vb2_v4l2_buffer vb;
  32         dma_addr_t addr[3];
  33         struct list_head queue;
  34 };
  35
  36 struct camss_video;
  37
  38 struct camss_video_ops {
  39         int (*queue_buffer)(struct camss_video *vid, struct camss_buffer *buf);
  40         int (*flush_buffers)(struct camss_video *vid,
  41                              enum vb2_buffer_state state);
  42 };
  43
  44 struct camss_format_info;
  45
  46 struct camss_video {
  47         struct camss *camss;
  48         struct vb2_queue vb2_q;
  49         struct video_device vdev;
  50         struct media_pad pad;
  51         struct v4l2_format active_fmt;
  52         enum v4l2_buf_type type;
  53         struct media_pipeline pipe;
  54         const struct camss_video_ops *ops;
  55         struct mutex lock;
  56         struct mutex q_lock;
  57         unsigned int bpl_alignment;
  58         unsigned int line_based;
  59         const struct camss_format_info *formats;
  60         unsigned int nformats;
  61 };
  62
  63 void msm_video_stop_streaming(struct camss_video *video);
  64
  65 int msm_video_register(struct camss_video *video, struct v4l2_device *v4l2_dev,
  66                        const char *name, int is_pix);
  67
  68 void msm_video_unregister(struct camss_video *video);
  69
  70 #endif /* QC_MSM_CAMSS_VIDEO_H */