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cdf60525 VK |
1 | /* |
2 | * ALSA SoC SPDIF DIR (Digital Interface Reciever) driver | |
3 | * | |
4 | * Based on ALSA SoC SPDIF DIT driver | |
5 | * | |
6 | * This driver is used by controllers which can operate in DIR (SPDI/F) where | |
7 | * no codec is needed. This file provides stub codec that can be used | |
8 | * in these configurations. SPEAr SPDIF IN Audio controller uses this driver. | |
9 | * | |
10 | * Author: Vipin Kumar, <vipin.kumar@st.com> | |
11 | * Copyright: (C) 2012 ST Microelectronics | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or modify | |
14 | * it under the terms of the GNU General Public License version 2 as | |
15 | * published by the Free Software Foundation. | |
16 | */ | |
17 | ||
18 | #include <linux/module.h> | |
19 | #include <linux/moduleparam.h> | |
20 | #include <linux/slab.h> | |
21 | #include <sound/soc.h> | |
22 | #include <sound/pcm.h> | |
23 | #include <sound/initval.h> | |
24 | ||
25 | #define STUB_RATES SNDRV_PCM_RATE_8000_192000 | |
26 | #define STUB_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ | |
27 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) | |
28 | ||
29 | static struct snd_soc_codec_driver soc_codec_spdif_dir; | |
30 | ||
31 | static struct snd_soc_dai_driver dir_stub_dai = { | |
32 | .name = "dir-hifi", | |
33 | .capture = { | |
34 | .stream_name = "Capture", | |
35 | .channels_min = 1, | |
36 | .channels_max = 384, | |
37 | .rates = STUB_RATES, | |
38 | .formats = STUB_FORMATS, | |
39 | }, | |
40 | }; | |
41 | ||
42 | static int spdif_dir_probe(struct platform_device *pdev) | |
43 | { | |
44 | return snd_soc_register_codec(&pdev->dev, &soc_codec_spdif_dir, | |
45 | &dir_stub_dai, 1); | |
46 | } | |
47 | ||
48 | static int spdif_dir_remove(struct platform_device *pdev) | |
49 | { | |
50 | snd_soc_unregister_codec(&pdev->dev); | |
51 | return 0; | |
52 | } | |
53 | ||
54 | static struct platform_driver spdif_dir_driver = { | |
55 | .probe = spdif_dir_probe, | |
56 | .remove = spdif_dir_remove, | |
57 | .driver = { | |
58 | .name = "spdif-dir", | |
59 | .owner = THIS_MODULE, | |
60 | }, | |
61 | }; | |
62 | ||
63 | module_platform_driver(spdif_dir_driver); | |
64 | ||
65 | MODULE_DESCRIPTION("ASoC SPDIF DIR driver"); | |
66 | MODULE_AUTHOR("Vipin Kumar <vipin.kumar@st.com>"); | |
67 | MODULE_LICENSE("GPL"); |