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Diffstat (limited to 'drivers/media/video/cx18/cx18-queue.h')
-rw-r--r--drivers/media/video/cx18/cx18-queue.h22
1 files changed, 19 insertions, 3 deletions
diff --git a/drivers/media/video/cx18/cx18-queue.h b/drivers/media/video/cx18/cx18-queue.h
index 7f93bb13c09f..456cec3bc28f 100644
--- a/drivers/media/video/cx18/cx18-queue.h
+++ b/drivers/media/video/cx18/cx18-queue.h
@@ -4,6 +4,7 @@
4 * Derived from ivtv-queue.h 4 * Derived from ivtv-queue.h
5 * 5 *
6 * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> 6 * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
7 * Copyright (C) 2008 Andy Walls <awalls@radix.net>
7 * 8 *
8 * This program is free software; you can redistribute it and/or modify 9 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by 10 * it under the terms of the GNU General Public License as published by
@@ -42,11 +43,26 @@ static inline void cx18_buf_sync_for_device(struct cx18_stream *s,
42void cx18_buf_swap(struct cx18_buffer *buf); 43void cx18_buf_swap(struct cx18_buffer *buf);
43 44
44/* cx18_queue utility functions */ 45/* cx18_queue utility functions */
46struct cx18_queue *_cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf,
47 struct cx18_queue *q, int to_front);
48
49static inline
50struct cx18_queue *cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf,
51 struct cx18_queue *q)
52{
53 return _cx18_enqueue(s, buf, q, 0); /* FIFO */
54}
55
56static inline
57struct cx18_queue *cx18_push(struct cx18_stream *s, struct cx18_buffer *buf,
58 struct cx18_queue *q)
59{
60 return _cx18_enqueue(s, buf, q, 1); /* LIFO */
61}
62
45void cx18_queue_init(struct cx18_queue *q); 63void cx18_queue_init(struct cx18_queue *q);
46void cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf,
47 struct cx18_queue *q);
48struct cx18_buffer *cx18_dequeue(struct cx18_stream *s, struct cx18_queue *q); 64struct cx18_buffer *cx18_dequeue(struct cx18_stream *s, struct cx18_queue *q);
49struct cx18_buffer *cx18_queue_get_buf_irq(struct cx18_stream *s, u32 id, 65struct cx18_buffer *cx18_queue_get_buf(struct cx18_stream *s, u32 id,
50 u32 bytesused); 66 u32 bytesused);
51void cx18_flush_queues(struct cx18_stream *s); 67void cx18_flush_queues(struct cx18_stream *s);
52 68