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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Broadcom BM2835 V4L2 driver
*
* Copyright © 2013 Raspberry Pi (Trading) Ltd.
*
* Authors: Vincent Sanders @ Collabora
* Dave Stevenson @ Broadcom
* (now dave.stevenson@raspberrypi.org)
* Simon Mellor @ Broadcom
* Luke Diamand @ Broadcom
*
* core driver device
*/
#define V4L2_CTRL_COUNT 29 /* number of v4l controls */
enum {
COMP_CAMERA = 0,
COMP_PREVIEW,
COMP_IMAGE_ENCODE,
COMP_VIDEO_ENCODE,
COMP_COUNT
};
enum {
CAM_PORT_PREVIEW = 0,
CAM_PORT_VIDEO,
CAM_PORT_CAPTURE,
CAM_PORT_COUNT
};
#define PREVIEW_LAYER 2
extern int bcm2835_v4l2_debug;
struct bm2835_mmal_dev {
/* v4l2 devices */
struct v4l2_device v4l2_dev;
struct video_device vdev;
struct mutex mutex;
/* controls */
struct v4l2_ctrl_handler ctrl_handler;
struct v4l2_ctrl *ctrls[V4L2_CTRL_COUNT];
enum v4l2_scene_mode scene_mode;
struct mmal_colourfx colourfx;
int hflip;
int vflip;
int red_gain;
int blue_gain;
enum mmal_parameter_exposuremode exposure_mode_user;
enum v4l2_exposure_auto_type exposure_mode_v4l2_user;
/* active exposure mode may differ if selected via a scene mode */
enum mmal_parameter_exposuremode exposure_mode_active;
enum mmal_parameter_exposuremeteringmode metering_mode;
unsigned int manual_shutter_speed;
bool exp_auto_priority;
bool manual_iso_enabled;
u32 iso;
/* allocated mmal instance and components */
struct vchiq_mmal_instance *instance;
struct vchiq_mmal_component *component[COMP_COUNT];
int camera_use_count;
struct v4l2_window overlay;
struct {
unsigned int width; /* width */
unsigned int height; /* height */
unsigned int stride; /* stride */
unsigned int buffersize; /* buffer size with padding */
struct mmal_fmt *fmt;
struct v4l2_fract timeperframe;
/* H264 encode bitrate */
int encode_bitrate;
/* H264 bitrate mode. CBR/VBR */
int encode_bitrate_mode;
/* H264 profile */
enum v4l2_mpeg_video_h264_profile enc_profile;
/* H264 level */
enum v4l2_mpeg_video_h264_level enc_level;
/* JPEG Q-factor */
int q_factor;
struct vb2_queue vb_vidq;
/* VC start timestamp for streaming */
s64 vc_start_timestamp;
/* Kernel start timestamp for streaming */
ktime_t kernel_start_ts;
/* Sequence number of last buffer */
u32 sequence;
struct vchiq_mmal_port *port; /* port being used for capture */
/* camera port being used for capture */
struct vchiq_mmal_port *camera_port;
/* component being used for encode */
struct vchiq_mmal_component *encode_component;
/* number of frames remaining which driver should capture */
unsigned int frame_count;
/* last frame completion */
struct completion frame_cmplt;
} capture;
unsigned int camera_num;
unsigned int max_width;
unsigned int max_height;
unsigned int rgb_bgr_swapped;
};
int bm2835_mmal_init_controls(
struct bm2835_mmal_dev *dev,
struct v4l2_ctrl_handler *hdl);
int bm2835_mmal_set_all_camera_controls(struct bm2835_mmal_dev *dev);
int set_framerate_params(struct bm2835_mmal_dev *dev);
/* Debug helpers */
#define v4l2_dump_pix_format(level, debug, dev, pix_fmt, desc) \
{ \
v4l2_dbg(level, debug, dev, \
"%s: w %u h %u field %u pfmt 0x%x bpl %u sz_img %u colorspace 0x%x priv %u\n", \
desc, \
(pix_fmt)->width, (pix_fmt)->height, (pix_fmt)->field, \
(pix_fmt)->pixelformat, (pix_fmt)->bytesperline, \
(pix_fmt)->sizeimage, (pix_fmt)->colorspace, (pix_fmt)->priv); \
}
#define v4l2_dump_win_format(level, debug, dev, win_fmt, desc) \
{ \
v4l2_dbg(level, debug, dev, \
"%s: w %u h %u l %u t %u field %u chromakey %06X clip %p " \
"clipcount %u bitmap %p\n", \
desc, \
(win_fmt)->w.width, (win_fmt)->w.height, \
(win_fmt)->w.left, (win_fmt)->w.top, \
(win_fmt)->field, \
(win_fmt)->chromakey, \
(win_fmt)->clips, (win_fmt)->clipcount, \
(win_fmt)->bitmap); \
}
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