aboutsummaryrefslogtreecommitdiff
path: root/drivers/media/video/uvc/uvcvideo.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/video/uvc/uvcvideo.h')
-rw-r--r--drivers/media/video/uvc/uvcvideo.h128
1 files changed, 105 insertions, 23 deletions
diff --git a/drivers/media/video/uvc/uvcvideo.h b/drivers/media/video/uvc/uvcvideo.h
index 4c1392ebcd4b..67f88d85bb16 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