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authorDavid S. Miller <davem@davemloft.net>2009-12-12 04:12:17 +0300
committerDavid S. Miller <davem@davemloft.net>2009-12-12 04:12:17 +0300
commit501706565b2d4d2d40d0d301d5411ede099b8a6f (patch)
tree142a18bf1f1e74a09dbfa27540b893ade0fd797d /drivers/media/video/cx18/cx18-queue.h
parente93737b0f0159a61772894943199fd3b6f315641 (diff)
parent2fe77b81c77eed92c4c0439f74c8148a295b4a86 (diff)
downloadlinux-501706565b2d4d2d40d0d301d5411ede099b8a6f.tar.xz
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts: include/net/tcp.h
Diffstat (limited to 'drivers/media/video/cx18/cx18-queue.h')
-rw-r--r--drivers/media/video/cx18/cx18-queue.h41
1 files changed, 34 insertions, 7 deletions
diff --git a/drivers/media/video/cx18/cx18-queue.h b/drivers/media/video/cx18/cx18-queue.h
index 4de06269d88f..88a6d34ad3bb 100644
--- a/drivers/media/video/cx18/cx18-queue.h
+++ b/drivers/media/video/cx18/cx18-queue.h
@@ -40,32 +40,59 @@ static inline void cx18_buf_sync_for_device(struct cx18_stream *s,
s->buf_size, s->dma);
}
+void _cx18_mdl_sync_for_device(struct cx18_stream *s, struct cx18_mdl *mdl);
+
+static inline void cx18_mdl_sync_for_device(struct cx18_stream *s,
+ struct cx18_mdl *mdl)
+{
+ if (list_is_singular(&mdl->buf_list))
+ cx18_buf_sync_for_device(s, list_first_entry(&mdl->buf_list,
+ struct cx18_buffer,
+ list));
+ else
+ _cx18_mdl_sync_for_device(s, mdl);
+}
+
void cx18_buf_swap(struct cx18_buffer *buf);
+void _cx18_mdl_swap(struct cx18_mdl *mdl);
+
+static inline void cx18_mdl_swap(struct cx18_mdl *mdl)
+{
+ if (list_is_singular(&mdl->buf_list))
+ cx18_buf_swap(list_first_entry(&mdl->buf_list,
+ struct cx18_buffer, list));
+ else
+ _cx18_mdl_swap(mdl);
+}
/* cx18_queue utility functions */
-struct cx18_queue *_cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf,
+struct cx18_queue *_cx18_enqueue(struct cx18_stream *s, struct cx18_mdl *mdl,
struct cx18_queue *q, int to_front);
static inline
-struct cx18_queue *cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf,
+struct cx18_queue *cx18_enqueue(struct cx18_stream *s, struct cx18_mdl *mdl,
struct cx18_queue *q)
{
- return _cx18_enqueue(s, buf, q, 0); /* FIFO */
+ return _cx18_enqueue(s, mdl, q, 0); /* FIFO */
}
static inline
-struct cx18_queue *cx18_push(struct cx18_stream *s, struct cx18_buffer *buf,
+struct cx18_queue *cx18_push(struct cx18_stream *s, struct cx18_mdl *mdl,
struct cx18_queue *q)
{
- return _cx18_enqueue(s, buf, q, 1); /* LIFO */
+ return _cx18_enqueue(s, mdl, q, 1); /* LIFO */
}
void cx18_queue_init(struct cx18_queue *q);
-struct cx18_buffer *cx18_dequeue(struct cx18_stream *s, struct cx18_queue *q);
-struct cx18_buffer *cx18_queue_get_buf(struct cx18_stream *s, u32 id,
+struct cx18_mdl *cx18_dequeue(struct cx18_stream *s, struct cx18_queue *q);
+struct cx18_mdl *cx18_queue_get_mdl(struct cx18_stream *s, u32 id,
u32 bytesused);
void cx18_flush_queues(struct cx18_stream *s);
+/* queue MDL reconfiguration helpers */
+void cx18_unload_queues(struct cx18_stream *s);
+void cx18_load_queues(struct cx18_stream *s);
+
/* cx18_stream utility functions */
int cx18_stream_alloc(struct cx18_stream *s);
void cx18_stream_free(struct cx18_stream *s);