48 	struct uvc_video_queue *queue = vb2_get_drv_priv(vq);  in uvc_queue_setup()  local
49 	struct uvc_video *video = container_of(queue, struct uvc_video, queue);  in uvc_queue_setup()
63 	struct uvc_video_queue *queue = vb2_get_drv_priv(vb->vb2_queue);  in uvc_buffer_prepare()  local
72 	if (unlikely(queue->flags & UVC_QUEUE_DISCONNECTED))  in uvc_buffer_prepare()
88 	struct uvc_video_queue *queue = vb2_get_drv_priv(vb->vb2_queue);  in uvc_buffer_queue()  local
92 	spin_lock_irqsave(&queue->irqlock, flags);  in uvc_buffer_queue()
94 	if (likely(!(queue->flags & UVC_QUEUE_DISCONNECTED))) {  in uvc_buffer_queue()
95 		list_add_tail(&buf->queue, &queue->irqqueue);  in uvc_buffer_queue()
104 	spin_unlock_irqrestore(&queue->irqlock, flags);  in uvc_buffer_queue()
115 int uvcg_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type,  in uvcg_queue_init()  argument
120 	queue->queue.type = type;  in uvcg_queue_init()
121 	queue->queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;  in uvcg_queue_init()
122 	queue->queue.drv_priv = queue;  in uvcg_queue_init()
123 	queue->queue.buf_struct_size = sizeof(struct uvc_buffer);  in uvcg_queue_init()
124 	queue->queue.ops = &uvc_queue_qops;  in uvcg_queue_init()
125 	queue->queue.lock = lock;  in uvcg_queue_init()
126 	queue->queue.mem_ops = &vb2_vmalloc_memops;  in uvcg_queue_init()
127 	queue->queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC  in uvcg_queue_init()
129 	ret = vb2_queue_init(&queue->queue);  in uvcg_queue_init()
133 	spin_lock_init(&queue->irqlock);  in uvcg_queue_init()
134 	INIT_LIST_HEAD(&queue->irqqueue);  in uvcg_queue_init()
135 	queue->flags = 0;  in uvcg_queue_init()
143 void uvcg_free_buffers(struct uvc_video_queue *queue)  in uvcg_free_buffers()  argument
145 	vb2_queue_release(&queue->queue);  in uvcg_free_buffers()
151 int uvcg_alloc_buffers(struct uvc_video_queue *queue,  in uvcg_alloc_buffers()  argument
156 	ret = vb2_reqbufs(&queue->queue, rb);  in uvcg_alloc_buffers()
161 int uvcg_query_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *buf)  in uvcg_query_buffer()  argument
163 	return vb2_querybuf(&queue->queue, buf);  in uvcg_query_buffer()
166 int uvcg_queue_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *buf)  in uvcg_queue_buffer()  argument
171 	ret = vb2_qbuf(&queue->queue, buf);  in uvcg_queue_buffer()
175 	spin_lock_irqsave(&queue->irqlock, flags);  in uvcg_queue_buffer()
176 	ret = (queue->flags & UVC_QUEUE_PAUSED) != 0;  in uvcg_queue_buffer()
177 	queue->flags &= ~UVC_QUEUE_PAUSED;  in uvcg_queue_buffer()
178 	spin_unlock_irqrestore(&queue->irqlock, flags);  in uvcg_queue_buffer()
186 int uvcg_dequeue_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *buf,  in uvcg_dequeue_buffer()  argument
189 	return vb2_dqbuf(&queue->queue, buf, nonblocking);  in uvcg_dequeue_buffer()
198 unsigned int uvcg_queue_poll(struct uvc_video_queue *queue, struct file *file,  in uvcg_queue_poll()  argument
201 	return vb2_poll(&queue->queue, file, wait);  in uvcg_queue_poll()
204 int uvcg_queue_mmap(struct uvc_video_queue *queue, struct vm_area_struct *vma)  in uvcg_queue_mmap()  argument
206 	return vb2_mmap(&queue->queue, vma);  in uvcg_queue_mmap()
215 unsigned long uvcg_queue_get_unmapped_area(struct uvc_video_queue *queue,  in uvcg_queue_get_unmapped_area()  argument
218 	return vb2_get_unmapped_area(&queue->queue, 0, 0, pgoff, 0);  in uvcg_queue_get_unmapped_area()
234 void uvcg_queue_cancel(struct uvc_video_queue *queue, int disconnect)  in uvcg_queue_cancel()  argument
239 	spin_lock_irqsave(&queue->irqlock, flags);  in uvcg_queue_cancel()
240 	while (!list_empty(&queue->irqqueue)) {  in uvcg_queue_cancel()
241 		buf = list_first_entry(&queue->irqqueue, struct uvc_buffer,  in uvcg_queue_cancel()
242 				       queue);  in uvcg_queue_cancel()
243 		list_del(&buf->queue);  in uvcg_queue_cancel()
254 		queue->flags |= UVC_QUEUE_DISCONNECTED;  in uvcg_queue_cancel()
255 	spin_unlock_irqrestore(&queue->irqlock, flags);  in uvcg_queue_cancel()
275 int uvcg_queue_enable(struct uvc_video_queue *queue, int enable)  in uvcg_queue_enable()  argument
281 		ret = vb2_streamon(&queue->queue, queue->queue.type);  in uvcg_queue_enable()
285 		queue->sequence = 0;  in uvcg_queue_enable()
286 		queue->buf_used = 0;  in uvcg_queue_enable()
288 		ret = vb2_streamoff(&queue->queue, queue->queue.type);  in uvcg_queue_enable()
292 		spin_lock_irqsave(&queue->irqlock, flags);  in uvcg_queue_enable()
293 		INIT_LIST_HEAD(&queue->irqqueue);  in uvcg_queue_enable()
301 		queue->flags &= ~UVC_QUEUE_DISCONNECTED;  in uvcg_queue_enable()
302 		spin_unlock_irqrestore(&queue->irqlock, flags);  in uvcg_queue_enable()
309 struct uvc_buffer *uvcg_queue_next_buffer(struct uvc_video_queue *queue,  in uvcg_queue_next_buffer()  argument
314 	if ((queue->flags & UVC_QUEUE_DROP_INCOMPLETE) &&  in uvcg_queue_next_buffer()
321 	list_del(&buf->queue);  in uvcg_queue_next_buffer()
322 	if (!list_empty(&queue->irqqueue))  in uvcg_queue_next_buffer()
323 		nextbuf = list_first_entry(&queue->irqqueue, struct uvc_buffer,  in uvcg_queue_next_buffer()
324 					   queue);  in uvcg_queue_next_buffer()
329 	buf->buf.v4l2_buf.sequence = queue->sequence++;  in uvcg_queue_next_buffer()
338 struct uvc_buffer *uvcg_queue_head(struct uvc_video_queue *queue)  in uvcg_queue_head()  argument
342 	if (!list_empty(&queue->irqqueue))  in uvcg_queue_head()
343 		buf = list_first_entry(&queue->irqqueue, struct uvc_buffer,  in uvcg_queue_head()
344 				       queue);  in uvcg_queue_head()
346 		queue->flags |= UVC_QUEUE_PAUSED;  in uvcg_queue_head()