projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 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"); |