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
76
77
|
/*
* ALSA SoC SPDIF DIR (Digital Interface Reciever) driver
*
* Based on ALSA SoC SPDIF DIT driver
*
* This driver is used by controllers which can operate in DIR (SPDI/F) where
* no codec is needed. This file provides stub codec that can be used
* in these configurations. SPEAr SPDIF IN Audio controller uses this driver.
*
* Author: Vipin Kumar, <vipin.kumar@st.com>
* Copyright: (C) 2012 ST Microelectronics
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/slab.h>
#include <sound/soc.h>
#include <sound/pcm.h>
#include <sound/initval.h>
#include <linux/of.h>
#define STUB_RATES SNDRV_PCM_RATE_8000_192000
#define STUB_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE)
static struct snd_soc_codec_driver soc_codec_spdif_dir;
static struct snd_soc_dai_driver dir_stub_dai = {
.name = "dir-hifi",
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 384,
.rates = STUB_RATES,
.formats = STUB_FORMATS,
},
};
static int spdif_dir_probe(struct platform_device *pdev)
{
return snd_soc_register_codec(&pdev->dev, &soc_codec_spdif_dir,
&dir_stub_dai, 1);
}
static int spdif_dir_remove(struct platform_device *pdev)
{
snd_soc_unregister_codec(&pdev->dev);
return 0;
}
#ifdef CONFIG_OF
static const struct of_device_id spdif_dir_dt_ids[] = {
{ .compatible = "linux,spdif-dir", },
{ }
};
MODULE_DEVICE_TABLE(of, spdif_dir_dt_ids);
#endif
static struct platform_driver spdif_dir_driver = {
.probe = spdif_dir_probe,
.remove = spdif_dir_remove,
.driver = {
.name = "spdif-dir",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(spdif_dir_dt_ids),
},
};
module_platform_driver(spdif_dir_driver);
MODULE_DESCRIPTION("ASoC SPDIF DIR driver");
MODULE_AUTHOR("Vipin Kumar <vipin.kumar@st.com>");
MODULE_LICENSE("GPL");
|
