mirror of
https://github.com/adulau/aha.git
synced 2024-12-29 12:16:20 +00:00
6627a653bc
This is a further stage on the road to refactoring away the ASoC platform device. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
115 lines
2.7 KiB
C
115 lines
2.7 KiB
C
/*
|
|
* ad73311.c -- ALSA Soc AD73311 codec support
|
|
*
|
|
* Copyright: Analog Device Inc.
|
|
* Author: Cliff Cai <cliff.cai@analog.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/device.h>
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/ac97_codec.h>
|
|
#include <sound/initval.h>
|
|
#include <sound/soc.h>
|
|
|
|
#include "ad73311.h"
|
|
|
|
struct snd_soc_dai ad73311_dai = {
|
|
.name = "AD73311",
|
|
.playback = {
|
|
.stream_name = "Playback",
|
|
.channels_min = 1,
|
|
.channels_max = 1,
|
|
.rates = SNDRV_PCM_RATE_8000,
|
|
.formats = SNDRV_PCM_FMTBIT_S16_LE, },
|
|
.capture = {
|
|
.stream_name = "Capture",
|
|
.channels_min = 1,
|
|
.channels_max = 1,
|
|
.rates = SNDRV_PCM_RATE_8000,
|
|
.formats = SNDRV_PCM_FMTBIT_S16_LE, },
|
|
};
|
|
EXPORT_SYMBOL_GPL(ad73311_dai);
|
|
|
|
static int ad73311_soc_probe(struct platform_device *pdev)
|
|
{
|
|
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
|
struct snd_soc_codec *codec;
|
|
int ret = 0;
|
|
|
|
codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
|
|
if (codec == NULL)
|
|
return -ENOMEM;
|
|
mutex_init(&codec->mutex);
|
|
codec->name = "AD73311";
|
|
codec->owner = THIS_MODULE;
|
|
codec->dai = &ad73311_dai;
|
|
codec->num_dai = 1;
|
|
socdev->card->codec = codec;
|
|
INIT_LIST_HEAD(&codec->dapm_widgets);
|
|
INIT_LIST_HEAD(&codec->dapm_paths);
|
|
|
|
/* register pcms */
|
|
ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "ad73311: failed to create pcms\n");
|
|
goto pcm_err;
|
|
}
|
|
|
|
ret = snd_soc_init_card(socdev);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "ad73311: failed to register card\n");
|
|
goto register_err;
|
|
}
|
|
|
|
return ret;
|
|
|
|
register_err:
|
|
snd_soc_free_pcms(socdev);
|
|
pcm_err:
|
|
kfree(socdev->card->codec);
|
|
socdev->card->codec = NULL;
|
|
return ret;
|
|
}
|
|
|
|
static int ad73311_soc_remove(struct platform_device *pdev)
|
|
{
|
|
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
|
struct snd_soc_codec *codec = socdev->card->codec;
|
|
|
|
if (codec == NULL)
|
|
return 0;
|
|
snd_soc_free_pcms(socdev);
|
|
kfree(codec);
|
|
return 0;
|
|
}
|
|
|
|
struct snd_soc_codec_device soc_codec_dev_ad73311 = {
|
|
.probe = ad73311_soc_probe,
|
|
.remove = ad73311_soc_remove,
|
|
};
|
|
EXPORT_SYMBOL_GPL(soc_codec_dev_ad73311);
|
|
|
|
static int __init ad73311_init(void)
|
|
{
|
|
return snd_soc_register_dai(&ad73311_dai);
|
|
}
|
|
module_init(ad73311_init);
|
|
|
|
static void __exit ad73311_exit(void)
|
|
{
|
|
snd_soc_unregister_dai(&ad73311_dai);
|
|
}
|
|
module_exit(ad73311_exit);
|
|
|
|
MODULE_DESCRIPTION("ASoC ad73311 driver");
|
|
MODULE_AUTHOR("Cliff Cai ");
|
|
MODULE_LICENSE("GPL");
|