LXR linux/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Broadcom BM2835 V4L2 driver
   4 *
   5 * Copyright © 2013 Raspberry Pi (Trading) Ltd.
   6 *
   7 * Authors: Vincent Sanders @ Collabora
   8 *          Dave Stevenson @ Broadcom
   9 *              (now dave.stevenson@raspberrypi.org)
  10 *          Simon Mellor @ Broadcom
  11 *          Luke Diamand @ Broadcom
  12 *
  13 * core driver device
  14 */
  15
  16#define V4L2_CTRL_COUNT 29 /* number of v4l controls */
  17
  18enum {
  19        COMP_CAMERA = 0,
  20        COMP_PREVIEW,
  21        COMP_IMAGE_ENCODE,
  22        COMP_VIDEO_ENCODE,
  23        COMP_COUNT
  24};
  25
  26enum {
  27        CAM_PORT_PREVIEW = 0,
  28        CAM_PORT_VIDEO,
  29        CAM_PORT_CAPTURE,
  30        CAM_PORT_COUNT
  31};
  32
  33extern int bcm2835_v4l2_debug;
  34
  35struct bm2835_mmal_dev {
  36        /* v4l2 devices */
  37        struct v4l2_device v4l2_dev;
  38        struct video_device vdev;
  39        struct mutex mutex;
  40
  41        /* controls */
  42        struct v4l2_ctrl_handler ctrl_handler;
  43        struct v4l2_ctrl *ctrls[V4L2_CTRL_COUNT];
  44        enum v4l2_scene_mode scene_mode;
  45        struct mmal_colourfx colourfx;
  46        int hflip;
  47        int vflip;
  48        int red_gain;
  49        int blue_gain;
  50        enum mmal_parameter_exposuremode exposure_mode_user;
  51        enum v4l2_exposure_auto_type exposure_mode_v4l2_user;
  52        /* active exposure mode may differ if selected via a scene mode */
  53        enum mmal_parameter_exposuremode exposure_mode_active;
  54        enum mmal_parameter_exposuremeteringmode metering_mode;
  55        unsigned int manual_shutter_speed;
  56        bool exp_auto_priority;
  57        bool manual_iso_enabled;
  58        u32 iso;
  59
  60        /* allocated mmal instance and components */
  61        struct vchiq_mmal_instance *instance;
  62        struct vchiq_mmal_component *component[COMP_COUNT];
  63        int camera_use_count;
  64
  65        struct v4l2_window overlay;
  66
  67        struct {
  68                unsigned int width;  /* width */
  69                unsigned int height;  /* height */
  70                unsigned int stride;  /* stride */
  71                unsigned int buffersize; /* buffer size with padding */
  72                struct mmal_fmt *fmt;
  73                struct v4l2_fract timeperframe;
  74
  75                /* H264 encode bitrate */
  76                int encode_bitrate;
  77                /* H264 bitrate mode. CBR/VBR */
  78                int encode_bitrate_mode;
  79                /* H264 profile */
  80                enum v4l2_mpeg_video_h264_profile enc_profile;
  81                /* H264 level */
  82                enum v4l2_mpeg_video_h264_level enc_level;
  83                /* JPEG Q-factor */
  84                int q_factor;
  85
  86                struct vb2_queue vb_vidq;
  87
  88                /* VC start timestamp for streaming */
  89                s64 vc_start_timestamp;
  90                /* Kernel start timestamp for streaming */
  91                ktime_t kernel_start_ts;
  92                /* Sequence number of last buffer */
  93                u32 sequence;
  94
  95                struct vchiq_mmal_port *port; /* port being used for capture */
  96                /* camera port being used for capture */
  97                struct vchiq_mmal_port *camera_port;
  98                /* component being used for encode */
  99                struct vchiq_mmal_component *encode_component;
 100                /* number of frames remaining which driver should capture */
 101                unsigned int frame_count;
 102                /* last frame completion */
 103                struct completion frame_cmplt;
 104
 105        } capture;
 106
 107        unsigned int camera_num;
 108        unsigned int max_width;
 109        unsigned int max_height;
 110        unsigned int rgb_bgr_swapped;
 111};
 112
 113int bm2835_mmal_init_controls(
 114                        struct bm2835_mmal_dev *dev,
 115                        struct v4l2_ctrl_handler *hdl);
 116
 117int bm2835_mmal_set_all_camera_controls(struct bm2835_mmal_dev *dev);
 118int set_framerate_params(struct bm2835_mmal_dev *dev);
 119
 120/* Debug helpers */
 121
 122#define v4l2_dump_pix_format(level, debug, dev, pix_fmt, desc)  \
 123{       \
 124        v4l2_dbg(level, debug, dev,     \
 125"%s: w %u h %u field %u pfmt 0x%x bpl %u sz_img %u colorspace 0x%x priv %u\n", \
 126                desc,   \
 127                (pix_fmt)->width, (pix_fmt)->height, (pix_fmt)->field,  \
 128                (pix_fmt)->pixelformat, (pix_fmt)->bytesperline,        \
 129                (pix_fmt)->sizeimage, (pix_fmt)->colorspace, (pix_fmt)->priv); \
 130}
 131
 132#define v4l2_dump_win_format(level, debug, dev, win_fmt, desc)  \
 133{       \
 134        v4l2_dbg(level, debug, dev,     \
 135"%s: w %u h %u l %u t %u  field %u chromakey %06X clip %p " \
 136"clipcount %u bitmap %p\n", \
 137                desc,   \
 138                (win_fmt)->w.width, (win_fmt)->w.height, \
 139                (win_fmt)->w.left, (win_fmt)->w.top, \
 140                (win_fmt)->field,       \
 141                (win_fmt)->chromakey,   \
 142                (win_fmt)->clips, (win_fmt)->clipcount, \
 143                (win_fmt)->bitmap); \
 144}
 145