diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2011-10-24 11:53:59 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-12-11 11:13:06 -0200 |
| commit | 6998b6fb4b1c8f320adeee938d399c4d8dcc90e2 (patch) | |
| tree | 2a8e7687fe177c526fb518f22aff497bb4fcd98c /drivers/media/video/uvc/uvcvideo.h | |
| parent | 3d95e932573c316ad56b8e2f283e26de0b9c891c (diff) | |
[media] uvcvideo: Use videobuf2-vmalloc
Replace the current video buffers queue implementation with
videobuf2-vmalloc.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/uvc/uvcvideo.h')
| -rw-r--r-- | drivers/media/video/uvc/uvcvideo.h | 33 |
1 files changed, 12 insertions, 21 deletions
diff --git a/drivers/media/video/uvc/uvcvideo.h b/drivers/media/video/uvc/uvcvideo.h index 55f917105b57..8448edc3eccd 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 @@ -319,13 +320,9 @@ 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; @@ -334,24 +331,17 @@ struct uvc_buffer { unsigned int bytesused; }; -#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; }; @@ -391,6 +381,7 @@ 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, @@ -520,8 +511,8 @@ 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, @@ -543,7 +534,7 @@ 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 */ |