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be461ba8 C |
1 | /* |
2 | * ALSA SoC SPDIF DIT driver | |
3 | * | |
4 | * This driver is used by controllers which can operate in DIT (SPDI/F) where | |
5 | * no codec is needed. This file provides stub codec that can be used | |
6 | * in these configurations. TI DaVinci Audio controller uses this driver. | |
7 | * | |
8 | * Author: Steve Chen, <schen@mvista.com> | |
9 | * Copyright: (C) 2009 MontaVista Software, Inc., <source@mvista.com> | |
10 | * Copyright: (C) 2009 Texas Instruments, India | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License version 2 as | |
14 | * published by the Free Software Foundation. | |
15 | */ | |
16 | ||
17 | #include <linux/module.h> | |
18 | #include <linux/moduleparam.h> | |
37a5ddf4 | 19 | #include <linux/slab.h> |
be461ba8 C |
20 | #include <sound/soc.h> |
21 | #include <sound/pcm.h> | |
3a642915 | 22 | #include <sound/initval.h> |
be461ba8 | 23 | |
0a0cf58d KH |
24 | MODULE_LICENSE("GPL"); |
25 | ||
be461ba8 C |
26 | #define STUB_RATES SNDRV_PCM_RATE_8000_96000 |
27 | #define STUB_FORMATS SNDRV_PCM_FMTBIT_S16_LE | |
28 | ||
3a642915 | 29 | |
f0fba2ad | 30 | static struct snd_soc_codec_driver soc_codec_spdif_dit; |
3a642915 | 31 | |
f0fba2ad LG |
32 | static struct snd_soc_dai_driver dit_stub_dai = { |
33 | .name = "dit-hifi", | |
be461ba8 C |
34 | .playback = { |
35 | .stream_name = "Playback", | |
36 | .channels_min = 1, | |
37 | .channels_max = 384, | |
38 | .rates = STUB_RATES, | |
39 | .formats = STUB_FORMATS, | |
40 | }, | |
41 | }; | |
42 | ||
43 | static int spdif_dit_probe(struct platform_device *pdev) | |
44 | { | |
f0fba2ad LG |
45 | return snd_soc_register_codec(&pdev->dev, &soc_codec_spdif_dit, |
46 | &dit_stub_dai, 1); | |
be461ba8 C |
47 | } |
48 | ||
49 | static int spdif_dit_remove(struct platform_device *pdev) | |
50 | { | |
f0fba2ad | 51 | snd_soc_unregister_codec(&pdev->dev); |
be461ba8 C |
52 | return 0; |
53 | } | |
54 | ||
55 | static struct platform_driver spdif_dit_driver = { | |
56 | .probe = spdif_dit_probe, | |
57 | .remove = spdif_dit_remove, | |
58 | .driver = { | |
59 | .name = "spdif-dit", | |
60 | .owner = THIS_MODULE, | |
61 | }, | |
62 | }; | |
63 | ||
64 | static int __init dit_modinit(void) | |
65 | { | |
66 | return platform_driver_register(&spdif_dit_driver); | |
67 | } | |
68 | ||
69 | static void __exit dit_exit(void) | |
70 | { | |
71 | platform_driver_unregister(&spdif_dit_driver); | |
72 | } | |
73 | ||
74 | module_init(dit_modinit); | |
75 | module_exit(dit_exit); | |
76 |