projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 0e77e784 CC |
1 | /* |
| 2 | * ad73311.c -- ALSA Soc AD73311 codec support | |
| 3 | * | |
| 4 | * Copyright: Analog Device Inc. | |
| 5 | * Author: Cliff Cai <cliff.cai@analog.com> | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify it | |
| 8 | * under the terms of the GNU General Public License as published by the | |
| 9 | * Free Software Foundation; either version 2 of the License, or (at your | |
| 10 | * option) any later version. | |
| 0e77e784 CC |
11 | */ |
| 12 | ||
| 13 | #include <linux/init.h> | |
| 14 | #include <linux/module.h> | |
| 0e77e784 CC |
15 | #include <linux/kernel.h> |
| 16 | #include <linux/device.h> | |
| 17 | #include <sound/core.h> | |
| 18 | #include <sound/pcm.h> | |
| 19 | #include <sound/ac97_codec.h> | |
| 20 | #include <sound/initval.h> | |
| 21 | #include <sound/soc.h> | |
| 22 | ||
| 23 | #include "ad73311.h" | |
| 24 | ||
| 25 | struct snd_soc_dai ad73311_dai = { | |
| 26 | .name = "AD73311", | |
| 27 | .playback = { | |
| 28 | .stream_name = "Playback", | |
| 29 | .channels_min = 1, | |
| 30 | .channels_max = 1, | |
| 31 | .rates = SNDRV_PCM_RATE_8000, | |
| 32 | .formats = SNDRV_PCM_FMTBIT_S16_LE, }, | |
| 33 | .capture = { | |
| 34 | .stream_name = "Capture", | |
| 35 | .channels_min = 1, | |
| 36 | .channels_max = 1, | |
| 37 | .rates = SNDRV_PCM_RATE_8000, | |
| 38 | .formats = SNDRV_PCM_FMTBIT_S16_LE, }, | |
| 39 | }; | |
| 40 | EXPORT_SYMBOL_GPL(ad73311_dai); | |
| 41 | ||
| 42 | static int ad73311_soc_probe(struct platform_device *pdev) | |
| 43 | { | |
| 44 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
| 45 | struct snd_soc_codec *codec; | |
| 46 | int ret = 0; | |
| 47 | ||
| 48 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
| 49 | if (codec == NULL) | |
| 50 | return -ENOMEM; | |
| 51 | mutex_init(&codec->mutex); | |
| 52 | codec->name = "AD73311"; | |
| 53 | codec->owner = THIS_MODULE; | |
| 54 | codec->dai = &ad73311_dai; | |
| 55 | codec->num_dai = 1; | |
| 56 | socdev->codec = codec; | |
| 57 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
| 58 | INIT_LIST_HEAD(&codec->dapm_paths); | |
| 59 | ||
| 60 | /* register pcms */ | |
| 61 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); | |
| 62 | if (ret < 0) { | |
| 63 | printk(KERN_ERR "ad73311: failed to create pcms\n"); | |
| 64 | goto pcm_err; | |
| 65 | } | |
| 66 | ||
| 968a6025 | 67 | ret = snd_soc_init_card(socdev); |
| 0e77e784 CC |
68 | if (ret < 0) { |
| 69 | printk(KERN_ERR "ad73311: failed to register card\n"); | |
| 70 | goto register_err; | |
| 71 | } | |
| 72 | ||
| 73 | return ret; | |
| 74 | ||
| 75 | register_err: | |
| 76 | snd_soc_free_pcms(socdev); | |
| 77 | pcm_err: | |
| 78 | kfree(socdev->codec); | |
| 79 | socdev->codec = NULL; | |
| 80 | return ret; | |
| 81 | } | |
| 82 | ||
| 83 | static int ad73311_soc_remove(struct platform_device *pdev) | |
| 84 | { | |
| 85 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
| 86 | struct snd_soc_codec *codec = socdev->codec; | |
| 87 | ||
| 88 | if (codec == NULL) | |
| 89 | return 0; | |
| 90 | snd_soc_free_pcms(socdev); | |
| 91 | kfree(codec); | |
| 92 | return 0; | |
| 93 | } | |
| 94 | ||
| 95 | struct snd_soc_codec_device soc_codec_dev_ad73311 = { | |
| 96 | .probe = ad73311_soc_probe, | |
| 97 | .remove = ad73311_soc_remove, | |
| 98 | }; | |
| 99 | EXPORT_SYMBOL_GPL(soc_codec_dev_ad73311); | |
| 100 | ||
| c9b3a40f | 101 | static int __init ad73311_init(void) |
| 64089b84 MB |
102 | { |
| 103 | return snd_soc_register_dai(&ad73311_dai); | |
| 104 | } | |
| 105 | module_init(ad73311_init); | |
| 106 | ||
| 107 | static void __exit ad73311_exit(void) | |
| 108 | { | |
| 109 | snd_soc_unregister_dai(&ad73311_dai); | |
| 110 | } | |
| 111 | module_exit(ad73311_exit); | |
| 112 | ||
| 0e77e784 CC |
113 | MODULE_DESCRIPTION("ASoC ad73311 driver"); |
| 114 | MODULE_AUTHOR("Cliff Cai "); | |
| 115 | MODULE_LICENSE("GPL"); |