2 * ad73311.c -- ALSA Soc AD73311 codec support
4 * Copyright: Analog Device Inc.
5 * Author: Cliff Cai <cliff.cai@analog.com>
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.
13 #include <linux/init.h>
14 #include <linux/module.h>
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>
25 struct snd_soc_dai ad73311_dai = {
28 .stream_name = "Playback",
31 .rates = SNDRV_PCM_RATE_8000,
32 .formats = SNDRV_PCM_FMTBIT_S16_LE, },
34 .stream_name = "Capture",
37 .rates = SNDRV_PCM_RATE_8000,
38 .formats = SNDRV_PCM_FMTBIT_S16_LE, },
40 EXPORT_SYMBOL_GPL(ad73311_dai);
42 static int ad73311_soc_probe(struct platform_device *pdev)
44 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
45 struct snd_soc_codec *codec;
48 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
51 mutex_init(&codec->mutex);
52 codec->name = "AD73311";
53 codec->owner = THIS_MODULE;
54 codec->dai = &ad73311_dai;
56 socdev->card->codec = codec;
57 INIT_LIST_HEAD(&codec->dapm_widgets);
58 INIT_LIST_HEAD(&codec->dapm_paths);
61 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
63 printk(KERN_ERR "ad73311: failed to create pcms\n");
67 ret = snd_soc_init_card(socdev);
69 printk(KERN_ERR "ad73311: failed to register card\n");
76 snd_soc_free_pcms(socdev);
78 kfree(socdev->card->codec);
79 socdev->card->codec = NULL;
83 static int ad73311_soc_remove(struct platform_device *pdev)
85 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
86 struct snd_soc_codec *codec = socdev->card->codec;
90 snd_soc_free_pcms(socdev);
95 struct snd_soc_codec_device soc_codec_dev_ad73311 = {
96 .probe = ad73311_soc_probe,
97 .remove = ad73311_soc_remove,
99 EXPORT_SYMBOL_GPL(soc_codec_dev_ad73311);
101 static int __init ad73311_init(void)
103 return snd_soc_register_dai(&ad73311_dai);
105 module_init(ad73311_init);
107 static void __exit ad73311_exit(void)
109 snd_soc_unregister_dai(&ad73311_dai);
111 module_exit(ad73311_exit);
113 MODULE_DESCRIPTION("ASoC ad73311 driver");
114 MODULE_AUTHOR("Cliff Cai ");
115 MODULE_LICENSE("GPL");