| Vipin Kumar | cdf6052 | 2012-06-28 12:31:37 +0530 | [diff] [blame] | 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"); |