blob: bb3355467eff86a74381a08311cf53b1a4ffe87c (
plain)
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
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Support for Digigram AlpX PCI-e boards
*
* Copyright (c) 2024 Digigram Digital (info@digigram.com)
*/
#ifndef _ALPX_STREAMS_EDF_H
#define _ALPX_STREAMS_EDF_H
#include <sound/pcm.h>
/* Structures */
enum alpx_pipe_status {
ALPX_PIPE_STATUS_IDLE = 0,
ALPX_PIPE_STATUS_RUNNING,
ALPX_PIPE_STATUS_STOPPING,
ALPX_PIPE_STATUS_STOPPED,
};
struct alpx_pipe {
u32 period_qty_on_start; /* 2^64-1 periods @ 192kHZ = 2M years ! , u32 => 0.2year , enough to debug*/
struct snd_pcm_substream *substream;
enum alpx_pipe_status status;
bool configured;
bool xdma_write;
};
/* Pipe */
int alpx_pipe_init(struct alpx_pipe *pipe, bool xdma_write);
/* Playback */
extern const struct snd_pcm_ops alpx_playback_ops;
int alpx_playback_open(struct snd_pcm_substream *substream);
int alpx_playback_close(struct snd_pcm_substream *substream);
int alpx_playback_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params);
int alpx_playback_hw_free(struct snd_pcm_substream *substream);
int alpx_playback_prepare(struct snd_pcm_substream *substream);
int alpx_playback_trigger(struct snd_pcm_substream *substream,
int command);
snd_pcm_uframes_t alpx_playback_pointer(struct snd_pcm_substream *substream);
/* Capture */
extern const struct snd_pcm_ops alpx_capture_ops;
int alpx_capture_open(struct snd_pcm_substream *substream);
int alpx_capture_close(struct snd_pcm_substream *substream);
int alpx_capture_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params);
int alpx_capture_hw_free(struct snd_pcm_substream *substream);
int alpx_capture_prepare(struct snd_pcm_substream *substream);
int alpx_capture_trigger(struct snd_pcm_substream *substream,
int command);
#endif
|
