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

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * camss-video.h
   4  *
   5  * Qualcomm MSM Camera Subsystem - V4L2 device node
   6  *
   7  * Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
   8  * Copyright (C) 2015-2018 Linaro Ltd.
   9  */
  10 #ifndef QC_MSM_CAMSS_VIDEO_H
  11 #define QC_MSM_CAMSS_VIDEO_H
  12
  13 #include <linux/mutex.h>
  14 #include <linux/videodev2.h>
  15 #include <media/media-entity.h>
  16 #include <media/v4l2-dev.h>
  17 #include <media/v4l2-device.h>
  18 #include <media/v4l2-fh.h>
  19 #include <media/v4l2-mediabus.h>
  20 #include <media/videobuf2-v4l2.h>
  21
  22 struct camss_buffer {
  23         struct vb2_v4l2_buffer vb;
  24         dma_addr_t addr[3];
  25         struct list_head queue;
  26 };
  27
  28 struct camss_video;
  29
  30 struct camss_video_ops {
  31         int (*queue_buffer)(struct camss_video *vid, struct camss_buffer *buf);
  32         int (*flush_buffers)(struct camss_video *vid,
  33                              enum vb2_buffer_state state);
  34 };
  35
  36 struct camss_format_info;
  37
  38 struct camss_video {
  39         struct camss *camss;
  40         struct vb2_queue vb2_q;
  41         struct video_device vdev;
  42         struct media_pad pad;
  43         struct v4l2_format active_fmt;
  44         enum v4l2_buf_type type;
  45         struct media_pipeline pipe;
  46         const struct camss_video_ops *ops;
  47         struct mutex lock;
  48         struct mutex q_lock;
  49         unsigned int bpl_alignment;
  50         unsigned int line_based;
  51         const struct camss_format_info *formats;
  52         unsigned int nformats;
  53 };
  54
  55 void msm_video_stop_streaming(struct camss_video *video);
  56
  57 int msm_video_register(struct camss_video *video, struct v4l2_device *v4l2_dev,
  58                        const char *name, int is_pix);
  59
  60 void msm_video_unregister(struct camss_video *video);
  61
  62 #endif /* QC_MSM_CAMSS_VIDEO_H */