1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
#ifndef XIVO_TDM_API_H
#define XIVO_TDM_API_H
/* XXX matches with ICP_HSSDRV_PORT_XHFC_MEGREZ_PROTO_XIVO_CONFIG */
#define XHFC_MEGREZ_PROTO_XIVO_CONFIG (4)
/* XXX matches with ICP_HSSDRV_PORT_LE89316_MEGREZ_PROTO_XIVO_CONFIG */
#define LE89316_MEGREZ_PROTO_XIVO_CONFIG (5)
/* fixed for now: */
#define XIVO_TDM_TS_NUM (32)
/* for audio propagation, xivo_tdm_cb will be called every ms (hopefully...) */
struct xivo_tdm_tick_cb_struct {
void (*tick)(void *data);
void *tick_data;
};
struct xivo_tdm_port;
/* TDM port allocation
* Returns a xivo_tdm_port pointer if available, else NULL. */
/* hardirq: no -- softirq: no -- user: yes */
struct xivo_tdm_port *xivo_tdm_get_port(int tdm_port_num);
/* TDM port release */
/* hardirq: no -- softirq: no -- user: yes */
void xivo_tdm_put_port(struct xivo_tdm_port *);
/* TDM port config + startup */
/* hardirq: no -- softirq: no -- user: yes */
int xivo_tdm_config_port(
struct xivo_tdm_port* xtp,
unsigned int port_config);
/* hardirq: no -- softirq: no -- user: yes */
void xivo_tdm_register_port0_started(
struct xivo_tdm_port* xtp,
void (*port0_started)(void *),
void *port0_started_data);
/* hardirq: no -- softirq: no -- user: yes */
int xivo_tdm_start_chans(
struct xivo_tdm_port* xtp,
u32 chans,
struct xivo_tdm_tick_cb_struct *cb_struct); // optional, can be null
void xivo_tdm_stop_chans(
struct xivo_tdm_port* xtp);
/* If cb_struct is NULL, the user has to regularly call
* xivo_tdm_receive(), xivo_tdm_transmit() and xivo_tdm_tick()
*/
/* hardirq: yes -- softirq: yes -- user: yes */
void xivo_tdm_receive(
struct xivo_tdm_port* xtp,
const unsigned int cnum,
u8 samples[8]);
/* hardirq: yes -- softirq: yes -- user: yes */
void xivo_tdm_transmit(
struct xivo_tdm_port* xtp,
const unsigned int cnum,
const u8 samples[8]);
/* hardirq: yes -- softirq: yes -- user: yes */
void xivo_tdm_tick(
struct xivo_tdm_port* xtp);
#endif /* XIVO_TDM_API_H */
|
