40 uvc_queue_to_stream(struct uvc_video_queue *queue)  in uvc_queue_to_stream()  argument
42 	return container_of(queue, struct uvc_streaming, queue);  in uvc_queue_to_stream()
50 static void uvc_queue_return_buffers(struct uvc_video_queue *queue,  in uvc_queue_return_buffers()  argument
57 	while (!list_empty(&queue->irqqueue)) {  in uvc_queue_return_buffers()
58 		struct uvc_buffer *buf = list_first_entry(&queue->irqqueue,  in uvc_queue_return_buffers()
60 							  queue);  in uvc_queue_return_buffers()
61 		list_del(&buf->queue);  in uvc_queue_return_buffers()
75 	struct uvc_video_queue *queue = vb2_get_drv_priv(vq);  in uvc_queue_setup()  local
76 	struct uvc_streaming *stream = uvc_queue_to_stream(queue);  in uvc_queue_setup()
92 	struct uvc_video_queue *queue = vb2_get_drv_priv(vb->vb2_queue);  in uvc_buffer_prepare()  local
101 	if (unlikely(queue->flags & UVC_QUEUE_DISCONNECTED))  in uvc_buffer_prepare()
118 	struct uvc_video_queue *queue = vb2_get_drv_priv(vb->vb2_queue);  in uvc_buffer_queue()  local
122 	spin_lock_irqsave(&queue->irqlock, flags);  in uvc_buffer_queue()
123 	if (likely(!(queue->flags & UVC_QUEUE_DISCONNECTED))) {  in uvc_buffer_queue()
124 		list_add_tail(&buf->queue, &queue->irqqueue);  in uvc_buffer_queue()
133 	spin_unlock_irqrestore(&queue->irqlock, flags);  in uvc_buffer_queue()
138 	struct uvc_video_queue *queue = vb2_get_drv_priv(vb->vb2_queue);  in uvc_buffer_finish()  local
139 	struct uvc_streaming *stream = uvc_queue_to_stream(queue);  in uvc_buffer_finish()
148 	struct uvc_video_queue *queue = vb2_get_drv_priv(vq);  in uvc_start_streaming()  local
149 	struct uvc_streaming *stream = uvc_queue_to_stream(queue);  in uvc_start_streaming()
153 	queue->buf_used = 0;  in uvc_start_streaming()
159 	spin_lock_irqsave(&queue->irqlock, flags);  in uvc_start_streaming()
160 	uvc_queue_return_buffers(queue, UVC_BUF_STATE_QUEUED);  in uvc_start_streaming()
161 	spin_unlock_irqrestore(&queue->irqlock, flags);  in uvc_start_streaming()
168 	struct uvc_video_queue *queue = vb2_get_drv_priv(vq);  in uvc_stop_streaming()  local
169 	struct uvc_streaming *stream = uvc_queue_to_stream(queue);  in uvc_stop_streaming()
174 	spin_lock_irqsave(&queue->irqlock, flags);  in uvc_stop_streaming()
175 	uvc_queue_return_buffers(queue, UVC_BUF_STATE_ERROR);  in uvc_stop_streaming()
176 	spin_unlock_irqrestore(&queue->irqlock, flags);  in uvc_stop_streaming()
190 int uvc_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type,  in uvc_queue_init()  argument
195 	queue->queue.type = type;  in uvc_queue_init()
196 	queue->queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;  in uvc_queue_init()
197 	queue->queue.drv_priv = queue;  in uvc_queue_init()
198 	queue->queue.buf_struct_size = sizeof(struct uvc_buffer);  in uvc_queue_init()
199 	queue->queue.ops = &uvc_queue_qops;  in uvc_queue_init()
200 	queue->queue.mem_ops = &vb2_vmalloc_memops;  in uvc_queue_init()
201 	queue->queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC  in uvc_queue_init()
203 	queue->queue.lock = &queue->mutex;  in uvc_queue_init()
204 	ret = vb2_queue_init(&queue->queue);  in uvc_queue_init()
208 	mutex_init(&queue->mutex);  in uvc_queue_init()
209 	spin_lock_init(&queue->irqlock);  in uvc_queue_init()
210 	INIT_LIST_HEAD(&queue->irqqueue);  in uvc_queue_init()
211 	queue->flags = drop_corrupted ? UVC_QUEUE_DROP_CORRUPTED : 0;  in uvc_queue_init()
216 void uvc_queue_release(struct uvc_video_queue *queue)  in uvc_queue_release()  argument
218 	mutex_lock(&queue->mutex);  in uvc_queue_release()
219 	vb2_queue_release(&queue->queue);  in uvc_queue_release()
220 	mutex_unlock(&queue->mutex);  in uvc_queue_release()
227 int uvc_request_buffers(struct uvc_video_queue *queue,  in uvc_request_buffers()  argument
232 	mutex_lock(&queue->mutex);  in uvc_request_buffers()
233 	ret = vb2_reqbufs(&queue->queue, rb);  in uvc_request_buffers()
234 	mutex_unlock(&queue->mutex);  in uvc_request_buffers()
239 int uvc_query_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *buf)  in uvc_query_buffer()  argument
243 	mutex_lock(&queue->mutex);  in uvc_query_buffer()
244 	ret = vb2_querybuf(&queue->queue, buf);  in uvc_query_buffer()
245 	mutex_unlock(&queue->mutex);  in uvc_query_buffer()
250 int uvc_create_buffers(struct uvc_video_queue *queue,  in uvc_create_buffers()  argument
255 	mutex_lock(&queue->mutex);  in uvc_create_buffers()
256 	ret = vb2_create_bufs(&queue->queue, cb);  in uvc_create_buffers()
257 	mutex_unlock(&queue->mutex);  in uvc_create_buffers()
262 int uvc_queue_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *buf)  in uvc_queue_buffer()  argument
266 	mutex_lock(&queue->mutex);  in uvc_queue_buffer()
267 	ret = vb2_qbuf(&queue->queue, buf);  in uvc_queue_buffer()
268 	mutex_unlock(&queue->mutex);  in uvc_queue_buffer()
273 int uvc_dequeue_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *buf,  in uvc_dequeue_buffer()  argument
278 	mutex_lock(&queue->mutex);  in uvc_dequeue_buffer()
279 	ret = vb2_dqbuf(&queue->queue, buf, nonblocking);  in uvc_dequeue_buffer()
280 	mutex_unlock(&queue->mutex);  in uvc_dequeue_buffer()
285 int uvc_queue_streamon(struct uvc_video_queue *queue, enum v4l2_buf_type type)  in uvc_queue_streamon()  argument
289 	mutex_lock(&queue->mutex);  in uvc_queue_streamon()
290 	ret = vb2_streamon(&queue->queue, type);  in uvc_queue_streamon()
291 	mutex_unlock(&queue->mutex);  in uvc_queue_streamon()
296 int uvc_queue_streamoff(struct uvc_video_queue *queue, enum v4l2_buf_type type)  in uvc_queue_streamoff()  argument
300 	mutex_lock(&queue->mutex);  in uvc_queue_streamoff()
301 	ret = vb2_streamoff(&queue->queue, type);  in uvc_queue_streamoff()
302 	mutex_unlock(&queue->mutex);  in uvc_queue_streamoff()
307 int uvc_queue_mmap(struct uvc_video_queue *queue, struct vm_area_struct *vma)  in uvc_queue_mmap()  argument
309 	return vb2_mmap(&queue->queue, vma);  in uvc_queue_mmap()
313 unsigned long uvc_queue_get_unmapped_area(struct uvc_video_queue *queue,  in uvc_queue_get_unmapped_area()  argument
316 	return vb2_get_unmapped_area(&queue->queue, 0, 0, pgoff, 0);  in uvc_queue_get_unmapped_area()
320 unsigned int uvc_queue_poll(struct uvc_video_queue *queue, struct file *file,  in uvc_queue_poll()  argument
325 	mutex_lock(&queue->mutex);  in uvc_queue_poll()
326 	ret = vb2_poll(&queue->queue, file, wait);  in uvc_queue_poll()
327 	mutex_unlock(&queue->mutex);  in uvc_queue_poll()
339 int uvc_queue_allocated(struct uvc_video_queue *queue)  in uvc_queue_allocated()  argument
343 	mutex_lock(&queue->mutex);  in uvc_queue_allocated()
344 	allocated = vb2_is_busy(&queue->queue);  in uvc_queue_allocated()
345 	mutex_unlock(&queue->mutex);  in uvc_queue_allocated()
362 void uvc_queue_cancel(struct uvc_video_queue *queue, int disconnect)  in uvc_queue_cancel()  argument
366 	spin_lock_irqsave(&queue->irqlock, flags);  in uvc_queue_cancel()
367 	uvc_queue_return_buffers(queue, UVC_BUF_STATE_ERROR);  in uvc_queue_cancel()
375 		queue->flags |= UVC_QUEUE_DISCONNECTED;  in uvc_queue_cancel()
376 	spin_unlock_irqrestore(&queue->irqlock, flags);  in uvc_queue_cancel()
379 struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue,  in uvc_queue_next_buffer()  argument
385 	if ((queue->flags & UVC_QUEUE_DROP_CORRUPTED) && buf->error) {  in uvc_queue_next_buffer()
393 	spin_lock_irqsave(&queue->irqlock, flags);  in uvc_queue_next_buffer()
394 	list_del(&buf->queue);  in uvc_queue_next_buffer()
395 	if (!list_empty(&queue->irqqueue))  in uvc_queue_next_buffer()
396 		nextbuf = list_first_entry(&queue->irqqueue, struct uvc_buffer,  in uvc_queue_next_buffer()
397 					   queue);  in uvc_queue_next_buffer()
400 	spin_unlock_irqrestore(&queue->irqlock, flags);  in uvc_queue_next_buffer()