diff options
Diffstat (limited to 'drivers/media/video/uvc/uvcvideo.h')
| -rw-r--r-- | drivers/media/video/uvc/uvcvideo.h | 128 |
1 files changed, 105 insertions, 23 deletions
diff --git a/drivers/media/video/uvc/uvcvideo.h b/drivers/media/video/uvc/uvcvideo.h index 4c1392e..67f88d8 100644 --- a/drivers/media/video/uvc/uvcvideo.h +++ b/drivers/media/video/uvc/uvcvideo.h @@ -13,6 +13,7 @@ #include <linux/videodev2.h> #include <media/media-device.h> #include <media/v4l2-device.h> +#include <media/videobuf2-core.h> /* -------------------------------------------------------------------------- * UVC constants @@ -113,6 +114,7 @@ /* Maximum allowed number of control mappings per device */ #define UVC_MAX_CONTROL_MAPPINGS 1024 +#define UVC_MAX_CONTROL_MENU_ENTRIES 32 /* Devices quirks */ #define UVC_QUIRK_STATUS_INTERVAL 0x00000001 @@ -319,35 +321,30 @@ enum uvc_buffer_state { }; struct uvc_buffer { - unsigned long vma_use_count; - struct list_head stream; - - /* Touched by interrupt handler. */ - struct v4l2_buffer buf; + struct vb2_buffer buf; struct list_head queue; - wait_queue_head_t wait; + enum uvc_buffer_state state; unsigned int error; + + void *mem; + unsigned int length; + unsigned int bytesused; + + u32 pts; }; -#define UVC_QUEUE_STREAMING (1 << 0) -#define UVC_QUEUE_DISCONNECTED (1 << 1) -#define UVC_QUEUE_DROP_CORRUPTED (1 << 2) +#define UVC_QUEUE_DISCONNECTED (1 << 0) +#define UVC_QUEUE_DROP_CORRUPTED (1 << 1) struct uvc_video_queue { - enum v4l2_buf_type type; + struct vb2_queue queue; + struct mutex mutex; /* Protects queue */ - void *mem; unsigned int flags; - - unsigned int count; - unsigned int buf_size; unsigned int buf_used; - struct uvc_buffer buffer[UVC_MAX_VIDEO_BUFFERS]; - struct mutex mutex; /* protects buffers and mainqueue */ - spinlock_t irqlock; /* protects irqqueue */ - struct list_head mainqueue; + spinlock_t irqlock; /* Protects irqqueue */ struct list_head irqqueue; }; @@ -362,6 +359,51 @@ struct uvc_video_chain { struct mutex ctrl_mutex; /* Protects ctrl.info */ }; +struct uvc_stats_frame { + unsigned int size; /* Number of bytes captured */ + unsigned int first_data; /* Index of the first non-empty packet */ + + unsigned int nb_packets; /* Number of packets */ + unsigned int nb_empty; /* Number of empty packets */ + unsigned int nb_invalid; /* Number of packets with an invalid header */ + unsigned int nb_errors; /* Number of packets with the error bit set */ + + unsigned int nb_pts; /* Number of packets with a PTS timestamp */ + unsigned int nb_pts_diffs; /* Number of PTS differences inside a frame */ + unsigned int last_pts_diff; /* Index of the last PTS difference */ + bool has_initial_pts; /* Whether the first non-empty packet has a PTS */ + bool has_early_pts; /* Whether a PTS is present before the first non-empty packet */ + u32 pts; /* PTS of the last packet */ + + unsigned int nb_scr; /* Number of packets with a SCR timestamp */ + unsigned int nb_scr_diffs; /* Number of SCR.STC differences inside a frame */ + u16 scr_sof; /* SCR.SOF of the last packet */ + u32 scr_stc; /* SCR.STC of the last packet */ +}; + +struct uvc_stats_stream { + struct timespec start_ts; /* Stream start timestamp */ + struct timespec stop_ts; /* Stream stop timestamp */ + + unsigned int nb_frames; /* Number of frames */ + + unsigned int nb_packets; /* Number of packets */ + unsigned int nb_empty; /* Number of empty packets */ + unsigned int nb_invalid; /* Number of packets with an invalid header */ + unsigned int nb_errors; /* Number of packets with the error bit set */ + + unsigned int nb_pts_constant; /* Number of frames with constant PTS */ + unsigned int nb_pts_early; /* Number of frames with early PTS */ + unsigned int nb_pts_initial; /* Number of frames with initial PTS */ + + unsigned int nb_scr_count_ok; /* Number of frames with at least one SCR per non empty packet */ + unsigned int nb_scr_diffs_ok; /* Number of frames with varying SCR.STC */ + unsigned int scr_sof_count; /* STC.SOF counter accumulated since stream start */ + unsigned int scr_sof; /* STC.SOF of the last packet */ + unsigned int min_sof; /* Minimum STC.SOF value */ + unsigned int max_sof; /* Maximum STC.SOF value */ +}; + struct uvc_streaming { struct list_head list; struct uvc_device *dev; @@ -387,6 +429,7 @@ struct uvc_streaming { */ struct mutex mutex; + /* Buffers queue. */ unsigned int frozen : 1; struct uvc_video_queue queue; void (*decode) (struct urb *urb, struct uvc_streaming *video, @@ -408,6 +451,32 @@ struct uvc_streaming { __u32 sequence; __u8 last_fid; + + /* debugfs */ + struct dentry *debugfs_dir; + struct { + struct uvc_stats_frame frame; + struct uvc_stats_stream stream; + } stats; + + /* Timestamps support. */ + struct uvc_clock { + struct uvc_clock_sample { + u32 dev_stc; + u16 dev_sof; + struct timespec host_ts; + u16 host_sof; + } *samples; + + unsigned int head; + unsigned int count; + unsigned int size; + + u16 last_sof; + u16 sof_offset; + + spinlock_t lock; + } clock; }; enum uvc_device_state { @@ -479,9 +548,12 @@ struct uvc_driver { #define UVC_TRACE_SUSPEND (1 << 8) #define UVC_TRACE_STATUS (1 << 9) #define UVC_TRACE_VIDEO (1 << 10) +#define UVC_TRACE_STATS (1 << 11) +#define UVC_TRACE_CLOCK (1 << 12) #define UVC_WARN_MINMAX 0 #define UVC_WARN_PROBE_DEF 1 +#define UVC_WARN_XU_GET_RES 2 extern unsigned int uvc_clock_param; extern unsigned int uvc_no_drop_param; @@ -516,8 +588,8 @@ extern struct uvc_entity *uvc_entity_by_id(struct uvc_device *dev, int id); extern void uvc_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type, int drop_corrupted); extern int uvc_alloc_buffers(struct uvc_video_queue *queue, - unsigned int nbuffers, unsigned int buflength); -extern int uvc_free_buffers(struct uvc_video_queue *queue); + struct v4l2_requestbuffers *rb); +extern void uvc_free_buffers(struct uvc_video_queue *queue); extern int uvc_query_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *v4l2_buf); extern int uvc_queue_buffer(struct uvc_video_queue *queue, @@ -539,7 +611,7 @@ extern unsigned long uvc_queue_get_unmapped_area(struct uvc_video_queue *queue, extern int uvc_queue_allocated(struct uvc_video_queue *queue); static inline int uvc_queue_streaming(struct uvc_video_queue *queue) { - return queue->flags & UVC_QUEUE_STREAMING; + return vb2_is_streaming(&queue->queue); } /* V4L2 interface */ @@ -556,10 +628,11 @@ extern int uvc_video_resume(struct uvc_streaming *stream, int reset); extern int uvc_video_enable(struct uvc_streaming *stream, int enable); extern int uvc_probe_video(struct uvc_streaming *stream, struct uvc_streaming_control *probe); -extern int uvc_commit_video(struct uvc_streaming *stream, - struct uvc_streaming_control *ctrl); extern int uvc_query_ctrl(struct uvc_device *dev, __u8 query, __u8 unit, __u8 intfnum, __u8 cs, void *data, __u16 size); +void uvc_video_clock_update(struct uvc_streaming *stream, + struct v4l2_buffer *v4l2_buf, + struct uvc_buffer *buf); /* Status */ extern int uvc_status_init(struct uvc_device *dev); @@ -612,4 +685,13 @@ extern struct usb_host_endpoint *uvc_find_endpoint( void uvc_video_decode_isight(struct urb *urb, struct uvc_streaming *stream, struct uvc_buffer *buf); +/* debugfs and statistics */ +int uvc_debugfs_init(void); +void uvc_debugfs_cleanup(void); +int uvc_debugfs_init_stream(struct uvc_streaming *stream); +void uvc_debugfs_cleanup_stream(struct uvc_streaming *stream); + +size_t uvc_video_stats_dump(struct uvc_streaming *stream, char *buf, + size_t size); + #endif |
