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Diffstat (limited to 'sound/soc/codecs/ac97.c')
-rw-r--r--sound/soc/codecs/ac97.c125
1 files changed, 51 insertions, 74 deletions
diff --git a/sound/soc/codecs/ac97.c b/sound/soc/codecs/ac97.c
index 1f5e57a4bb7a..3c087936aa57 100644
--- a/sound/soc/codecs/ac97.c
+++ b/sound/soc/codecs/ac97.c
@@ -21,17 +21,13 @@
#include <sound/ac97_codec.h>
#include <sound/initval.h>
#include <sound/soc.h>
-#include "ac97.h"
-
-#define AC97_VERSION "0.6"
static int ac97_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_codec *codec = socdev->card->codec;
+ struct snd_soc_codec *codec = rtd->codec;
int reg = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
AC97_PCM_FRONT_DAC_RATE : AC97_PCM_LR_ADC_RATE;
@@ -46,8 +42,8 @@ static struct snd_soc_dai_ops ac97_dai_ops = {
.prepare = ac97_prepare,
};
-struct snd_soc_dai ac97_dai = {
- .name = "AC97 HiFi",
+static struct snd_soc_dai_driver ac97_dai = {
+ .name = "ac97-hifi",
.ac97_control = 1,
.playback = {
.stream_name = "AC97 Playback",
@@ -63,7 +59,6 @@ struct snd_soc_dai ac97_dai = {
.formats = SND_SOC_STD_AC97_FMTS,},
.ops = &ac97_dai_ops,
};
-EXPORT_SYMBOL_GPL(ac97_dai);
static unsigned int ac97_read(struct snd_soc_codec *codec,
unsigned int reg)
@@ -78,95 +73,41 @@ static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
return 0;
}
-static int ac97_soc_probe(struct platform_device *pdev)
+static int ac97_soc_probe(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_card *card = socdev->card;
- struct snd_soc_codec *codec;
struct snd_ac97_bus *ac97_bus;
struct snd_ac97_template ac97_template;
- int i;
- int ret = 0;
-
- printk(KERN_INFO "AC97 SoC Audio Codec %s\n", AC97_VERSION);
-
- socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
- if (!socdev->card->codec)
- return -ENOMEM;
- codec = socdev->card->codec;
- mutex_init(&codec->mutex);
-
- codec->name = "AC97";
- codec->owner = THIS_MODULE;
- codec->dai = &ac97_dai;
- codec->num_dai = 1;
- codec->write = ac97_write;
- codec->read = ac97_read;
- 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)
- goto err;
+ int ret;
/* add codec as bus device for standard ac97 */
- ret = snd_ac97_bus(codec->card, 0, &soc_ac97_ops, NULL, &ac97_bus);
+ ret = snd_ac97_bus(codec->card->snd_card, 0, &soc_ac97_ops, NULL, &ac97_bus);
if (ret < 0)
- goto bus_err;
+ return ret;
memset(&ac97_template, 0, sizeof(struct snd_ac97_template));
ret = snd_ac97_mixer(ac97_bus, &ac97_template, &codec->ac97);
if (ret < 0)
- goto bus_err;
-
- for (i = 0; i < card->num_links; i++) {
- if (card->dai_link[i].codec_dai->ac97_control) {
- snd_ac97_dev_add_pdata(codec->ac97,
- card->dai_link[i].cpu_dai->ac97_pdata);
- }
- }
+ return ret;
return 0;
-
-bus_err:
- snd_soc_free_pcms(socdev);
-
-err:
- kfree(socdev->card->codec);
- socdev->card->codec = NULL;
- return ret;
}
-static int ac97_soc_remove(struct platform_device *pdev)
+static int ac97_soc_remove(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
-
- if (!codec)
- return 0;
-
- snd_soc_free_pcms(socdev);
- kfree(socdev->card->codec);
-
return 0;
}
#ifdef CONFIG_PM
-static int ac97_soc_suspend(struct platform_device *pdev, pm_message_t msg)
+static int ac97_soc_suspend(struct snd_soc_codec *codec, pm_message_t msg)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-
- snd_ac97_suspend(socdev->card->codec->ac97);
+ snd_ac97_suspend(codec->ac97);
return 0;
}
-static int ac97_soc_resume(struct platform_device *pdev)
+static int ac97_soc_resume(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-
- snd_ac97_resume(socdev->card->codec->ac97);
+ snd_ac97_resume(codec->ac97);
return 0;
}
@@ -175,14 +116,50 @@ static int ac97_soc_resume(struct platform_device *pdev)
#define ac97_soc_resume NULL
#endif
-struct snd_soc_codec_device soc_codec_dev_ac97 = {
+static struct snd_soc_codec_driver soc_codec_dev_ac97 = {
+ .write = ac97_write,
+ .read = ac97_read,
.probe = ac97_soc_probe,
.remove = ac97_soc_remove,
.suspend = ac97_soc_suspend,
.resume = ac97_soc_resume,
};
-EXPORT_SYMBOL_GPL(soc_codec_dev_ac97);
+
+static __devinit int ac97_probe(struct platform_device *pdev)
+{
+ return snd_soc_register_codec(&pdev->dev,
+ &soc_codec_dev_ac97, &ac97_dai, 1);
+}
+
+static int __devexit ac97_remove(struct platform_device *pdev)
+{
+ snd_soc_unregister_codec(&pdev->dev);
+ return 0;
+}
+
+static struct platform_driver ac97_codec_driver = {
+ .driver = {
+ .name = "ac97-codec",
+ .owner = THIS_MODULE,
+ },
+
+ .probe = ac97_probe,
+ .remove = __devexit_p(ac97_remove),
+};
+
+static int __init ac97_init(void)
+{
+ return platform_driver_register(&ac97_codec_driver);
+}
+module_init(ac97_init);
+
+static void __exit ac97_exit(void)
+{
+ platform_driver_unregister(&ac97_codec_driver);
+}
+module_exit(ac97_exit);
MODULE_DESCRIPTION("Soc Generic AC97 driver");
MODULE_AUTHOR("Liam Girdwood");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:ac97-codec");