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
73 	if (unlikely(queue->flags & UVC_QUEUE_DISCONNECTED))  in uvc_buffer_prepare()
89 	struct uvc_video_queue *queue = vb2_get_drv_priv(vb->vb2_queue);  in uvc_buffer_queue()  local
94 	spin_lock_irqsave(&queue->irqlock, flags);  in uvc_buffer_queue()
96 	if (likely(!(queue->flags & UVC_QUEUE_DISCONNECTED))) {  in uvc_buffer_queue()
97 		list_add_tail(&buf->queue, &queue->irqqueue);  in uvc_buffer_queue()
106 	spin_unlock_irqrestore(&queue->irqlock, flags);  in uvc_buffer_queue()
117 int uvcg_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type,  in uvcg_queue_init()  argument
122 	queue->queue.type = type;  in uvcg_queue_init()
123 	queue->queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;  in uvcg_queue_init()
124 	queue->queue.drv_priv = queue;  in uvcg_queue_init()
125 	queue->queue.buf_struct_size = sizeof(struct uvc_buffer);  in uvcg_queue_init()
126 	queue->queue.ops = &uvc_queue_qops;  in uvcg_queue_init()
127 	queue->queue.lock = lock;  in uvcg_queue_init()
128 	queue->queue.mem_ops = &vb2_vmalloc_memops;  in uvcg_queue_init()
129 	queue->queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC  in uvcg_queue_init()
131 	ret = vb2_queue_init(&queue->queue);  in uvcg_queue_init()
135 	spin_lock_init(&queue->irqlock);  in uvcg_queue_init()
136 	INIT_LIST_HEAD(&queue->irqqueue);  in uvcg_queue_init()
137 	queue->flags = 0;  in uvcg_queue_init()
145 void uvcg_free_buffers(struct uvc_video_queue *queue)  in uvcg_free_buffers()  argument
147 	vb2_queue_release(&queue->queue);  in uvcg_free_buffers()
153 int uvcg_alloc_buffers(struct uvc_video_queue *queue,  in uvcg_alloc_buffers()  argument
158 	ret = vb2_reqbufs(&queue->queue, rb);  in uvcg_alloc_buffers()
163 int uvcg_query_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *buf)  in uvcg_query_buffer()  argument
165 	return vb2_querybuf(&queue->queue, buf);  in uvcg_query_buffer()
168 int uvcg_queue_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *buf)  in uvcg_queue_buffer()  argument
173 	ret = vb2_qbuf(&queue->queue, buf);  in uvcg_queue_buffer()
177 	spin_lock_irqsave(&queue->irqlock, flags);  in uvcg_queue_buffer()
178 	ret = (queue->flags & UVC_QUEUE_PAUSED) != 0;  in uvcg_queue_buffer()
179 	queue->flags &= ~UVC_QUEUE_PAUSED;  in uvcg_queue_buffer()
180 	spin_unlock_irqrestore(&queue->irqlock, flags);  in uvcg_queue_buffer()
188 int uvcg_dequeue_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *buf,  in uvcg_dequeue_buffer()  argument
191 	return vb2_dqbuf(&queue->queue, buf, nonblocking);  in uvcg_dequeue_buffer()
200 unsigned int uvcg_queue_poll(struct uvc_video_queue *queue, struct file *file,  in uvcg_queue_poll()  argument
203 	return vb2_poll(&queue->queue, file, wait);  in uvcg_queue_poll()
206 int uvcg_queue_mmap(struct uvc_video_queue *queue, struct vm_area_struct *vma)  in uvcg_queue_mmap()  argument
208 	return vb2_mmap(&queue->queue, vma);  in uvcg_queue_mmap()
217 unsigned long uvcg_queue_get_unmapped_area(struct uvc_video_queue *queue,  in uvcg_queue_get_unmapped_area()  argument
220 	return vb2_get_unmapped_area(&queue->queue, 0, 0, pgoff, 0);  in uvcg_queue_get_unmapped_area()
236 void uvcg_queue_cancel(struct uvc_video_queue *queue, int disconnect)  in uvcg_queue_cancel()  argument
241 	spin_lock_irqsave(&queue->irqlock, flags);  in uvcg_queue_cancel()
242 	while (!list_empty(&queue->irqqueue)) {  in uvcg_queue_cancel()
243 		buf = list_first_entry(&queue->irqqueue, struct uvc_buffer,  in uvcg_queue_cancel()
244 				       queue);  in uvcg_queue_cancel()
245 		list_del(&buf->queue);  in uvcg_queue_cancel()
256 		queue->flags |= UVC_QUEUE_DISCONNECTED;  in uvcg_queue_cancel()
257 	spin_unlock_irqrestore(&queue->irqlock, flags);  in uvcg_queue_cancel()
277 int uvcg_queue_enable(struct uvc_video_queue *queue, int enable)  in uvcg_queue_enable()  argument
283 		ret = vb2_streamon(&queue->queue, queue->queue.type);  in uvcg_queue_enable()
287 		queue->sequence = 0;  in uvcg_queue_enable()
288 		queue->buf_used = 0;  in uvcg_queue_enable()
290 		ret = vb2_streamoff(&queue->queue, queue->queue.type);  in uvcg_queue_enable()
294 		spin_lock_irqsave(&queue->irqlock, flags);  in uvcg_queue_enable()
295 		INIT_LIST_HEAD(&queue->irqqueue);  in uvcg_queue_enable()
303 		queue->flags &= ~UVC_QUEUE_DISCONNECTED;  in uvcg_queue_enable()
304 		spin_unlock_irqrestore(&queue->irqlock, flags);  in uvcg_queue_enable()
311 struct uvc_buffer *uvcg_queue_next_buffer(struct uvc_video_queue *queue,  in uvcg_queue_next_buffer()  argument
316 	if ((queue->flags & UVC_QUEUE_DROP_INCOMPLETE) &&  in uvcg_queue_next_buffer()
323 	list_del(&buf->queue);  in uvcg_queue_next_buffer()
324 	if (!list_empty(&queue->irqqueue))  in uvcg_queue_next_buffer()
325 		nextbuf = list_first_entry(&queue->irqqueue, struct uvc_buffer,  in uvcg_queue_next_buffer()
326 					   queue);  in uvcg_queue_next_buffer()
331 	buf->buf.sequence = queue->sequence++;  in uvcg_queue_next_buffer()
340 struct uvc_buffer *uvcg_queue_head(struct uvc_video_queue *queue)  in uvcg_queue_head()  argument
344 	if (!list_empty(&queue->irqqueue))  in uvcg_queue_head()
345 		buf = list_first_entry(&queue->irqqueue, struct uvc_buffer,  in uvcg_queue_head()
346 				       queue);  in uvcg_queue_head()
348 		queue->flags |= UVC_QUEUE_PAUSED;  in uvcg_queue_head()