This source file includes following definitions.
- cx18_buf_sync_for_cpu
- cx18_buf_sync_for_device
- cx18_mdl_sync_for_device
- cx18_mdl_swap
- cx18_enqueue
- cx18_push
1
2
3
4
5
6
7
8
9
10
11 #define CX18_DMA_UNMAPPED ((u32) -1)
12
13
14
15 static inline void cx18_buf_sync_for_cpu(struct cx18_stream *s,
16 struct cx18_buffer *buf)
17 {
18 pci_dma_sync_single_for_cpu(s->cx->pci_dev, buf->dma_handle,
19 s->buf_size, s->dma);
20 }
21
22 static inline void cx18_buf_sync_for_device(struct cx18_stream *s,
23 struct cx18_buffer *buf)
24 {
25 pci_dma_sync_single_for_device(s->cx->pci_dev, buf->dma_handle,
26 s->buf_size, s->dma);
27 }
28
29 void _cx18_mdl_sync_for_device(struct cx18_stream *s, struct cx18_mdl *mdl);
30
31 static inline void cx18_mdl_sync_for_device(struct cx18_stream *s,
32 struct cx18_mdl *mdl)
33 {
34 if (list_is_singular(&mdl->buf_list))
35 cx18_buf_sync_for_device(s, list_first_entry(&mdl->buf_list,
36 struct cx18_buffer,
37 list));
38 else
39 _cx18_mdl_sync_for_device(s, mdl);
40 }
41
42 void cx18_buf_swap(struct cx18_buffer *buf);
43 void _cx18_mdl_swap(struct cx18_mdl *mdl);
44
45 static inline void cx18_mdl_swap(struct cx18_mdl *mdl)
46 {
47 if (list_is_singular(&mdl->buf_list))
48 cx18_buf_swap(list_first_entry(&mdl->buf_list,
49 struct cx18_buffer, list));
50 else
51 _cx18_mdl_swap(mdl);
52 }
53
54
55 struct cx18_queue *_cx18_enqueue(struct cx18_stream *s, struct cx18_mdl *mdl,
56 struct cx18_queue *q, int to_front);
57
58 static inline
59 struct cx18_queue *cx18_enqueue(struct cx18_stream *s, struct cx18_mdl *mdl,
60 struct cx18_queue *q)
61 {
62 return _cx18_enqueue(s, mdl, q, 0);
63 }
64
65 static inline
66 struct cx18_queue *cx18_push(struct cx18_stream *s, struct cx18_mdl *mdl,
67 struct cx18_queue *q)
68 {
69 return _cx18_enqueue(s, mdl, q, 1);
70 }
71
72 void cx18_queue_init(struct cx18_queue *q);
73 struct cx18_mdl *cx18_dequeue(struct cx18_stream *s, struct cx18_queue *q);
74 struct cx18_mdl *cx18_queue_get_mdl(struct cx18_stream *s, u32 id,
75 u32 bytesused);
76 void cx18_flush_queues(struct cx18_stream *s);
77
78
79 void cx18_unload_queues(struct cx18_stream *s);
80 void cx18_load_queues(struct cx18_stream *s);
81
82
83 int cx18_stream_alloc(struct cx18_stream *s);
84 void cx18_stream_free(struct cx18_stream *s);