ASoC: Decouple DAPM from CODECs
[linux-2.6.git] / sound / soc / codecs / stac9766.c
index bbc72c2..8aad3a2 100644 (file)
@@ -15,6 +15,7 @@
  */
 
 #include <linux/init.h>
+#include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/device.h>
 #include <sound/core.h>
@@ -23,8 +24,8 @@
 #include <sound/initval.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
+#include <sound/soc-dapm.h>
 #include <sound/tlv.h>
-#include <sound/soc-of-simple.h>
 
 #include "stac9766.h"
 
@@ -191,6 +192,7 @@ static int ac97_analog_prepare(struct snd_pcm_substream *substream,
        vra = stac9766_ac97_read(codec, AC97_EXTENDED_STATUS);
 
        vra |= 0x1; /* enable variable rate audio */
+       vra &= ~0x4; /* disable SPDIF output */
 
        stac9766_ac97_write(codec, AC97_EXTENDED_STATUS, vra);
 
@@ -221,22 +223,6 @@ static int ac97_digital_prepare(struct snd_pcm_substream *substream,
        return stac9766_ac97_write(codec, reg, runtime->rate);
 }
 
-static int ac97_digital_trigger(struct snd_pcm_substream *substream,
-                               int cmd, struct snd_soc_dai *dai)
-{
-       struct snd_soc_codec *codec = dai->codec;
-       unsigned short vra;
-
-       switch (cmd) {
-       case SNDRV_PCM_TRIGGER_STOP:
-               vra = stac9766_ac97_read(codec, AC97_EXTENDED_STATUS);
-               vra &= !0x04;
-               stac9766_ac97_write(codec, AC97_EXTENDED_STATUS, vra);
-               break;
-       }
-       return 0;
-}
-
 static int stac9766_set_bias_level(struct snd_soc_codec *codec,
                                   enum snd_soc_bias_level level)
 {
@@ -251,7 +237,7 @@ static int stac9766_set_bias_level(struct snd_soc_codec *codec,
                stac9766_ac97_write(codec, AC97_POWERDOWN, 0xffff);
                break;
        }
-       codec->bias_level = level;
+       codec->dapm.bias_level = level;
        return 0;
 }
 
@@ -271,20 +257,15 @@ static int stac9766_reset(struct snd_soc_codec *codec, int try_warm)
        return 0;
 }
 
-static int stac9766_codec_suspend(struct platform_device *pdev,
+static int stac9766_codec_suspend(struct snd_soc_codec *codec,
                                  pm_message_t state)
 {
-       struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-       struct snd_soc_codec *codec = socdev->card->codec;
-
        stac9766_set_bias_level(codec, SND_SOC_BIAS_OFF);
        return 0;
 }
 
-static int stac9766_codec_resume(struct platform_device *pdev)
+static int stac9766_codec_resume(struct snd_soc_codec *codec)
 {
-       struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-       struct snd_soc_codec *codec = socdev->card->codec;
        u16 id, reset;
 
        reset = 0;
@@ -303,9 +284,6 @@ reset:
        }
        stac9766_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
-       if (codec->suspend_bias_level == SND_SOC_BIAS_ON)
-               stac9766_set_bias_level(codec, SND_SOC_BIAS_ON);
-
        return 0;
 }
 
@@ -315,13 +293,11 @@ static struct snd_soc_dai_ops stac9766_dai_ops_analog = {
 
 static struct snd_soc_dai_ops stac9766_dai_ops_digital = {
        .prepare = ac97_digital_prepare,
-       .trigger = ac97_digital_trigger,
 };
 
-struct snd_soc_dai stac9766_dai[] = {
+static struct snd_soc_dai_driver stac9766_dai[] = {
 {
-       .name = "stac9766 analog",
-       .id = 0,
+       .name = "stac9766-hifi-analog",
        .ac97_control = 1,
 
        /* stream cababilities */
@@ -343,8 +319,7 @@ struct snd_soc_dai stac9766_dai[] = {
        .ops = &stac9766_dai_ops_analog,
 },
 {
-       .name = "stac9766 IEC958",
-       .id = 1,
+       .name = "stac9766-hifi-IEC958",
        .ac97_control = 1,
 
        /* stream cababilities */
@@ -360,57 +335,24 @@ struct snd_soc_dai stac9766_dai[] = {
        .ops = &stac9766_dai_ops_digital,
 }
 };
-EXPORT_SYMBOL_GPL(stac9766_dai);
 
-static int stac9766_codec_probe(struct platform_device *pdev)
+static int stac9766_codec_probe(struct snd_soc_codec *codec)
 {
-       struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-       struct snd_soc_codec *codec;
        int ret = 0;
 
        printk(KERN_INFO "STAC9766 SoC Audio Codec %s\n", STAC9766_VERSION);
 
-       socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
-       if (socdev->card->codec == NULL)
-               return -ENOMEM;
-       codec = socdev->card->codec;
-       mutex_init(&codec->mutex);
-
-       codec->reg_cache = kmemdup(stac9766_reg, sizeof(stac9766_reg),
-                                  GFP_KERNEL);
-       if (codec->reg_cache == NULL) {
-               ret = -ENOMEM;
-               goto cache_err;
-       }
-       codec->reg_cache_size = sizeof(stac9766_reg);
-       codec->reg_cache_step = 2;
-
-       codec->name = "STAC9766";
-       codec->owner = THIS_MODULE;
-       codec->dai = stac9766_dai;
-       codec->num_dai = ARRAY_SIZE(stac9766_dai);
-       codec->write = stac9766_ac97_write;
-       codec->read = stac9766_ac97_read;
-       codec->set_bias_level = stac9766_set_bias_level;
-       INIT_LIST_HEAD(&codec->dapm_widgets);
-       INIT_LIST_HEAD(&codec->dapm_paths);
-
        ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
        if (ret < 0)
                goto codec_err;
 
-       /* register pcms */
-       ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
-       if (ret < 0)
-               goto pcm_err;
-
        /* do a cold reset for the controller and then try
         * a warm reset followed by an optional cold reset for codec */
        stac9766_reset(codec, 0);
        ret = stac9766_reset(codec, 1);
        if (ret < 0) {
                printk(KERN_ERR "Failed to reset STAC9766: AC97 link error\n");
-               goto reset_err;
+               goto codec_err;
        }
 
        stac9766_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
@@ -420,40 +362,63 @@ static int stac9766_codec_probe(struct platform_device *pdev)
 
        return 0;
 
-reset_err:
-       snd_soc_free_pcms(socdev);
-pcm_err:
-       snd_soc_free_ac97_codec(codec);
 codec_err:
-       kfree(codec->private_data);
-cache_err:
-       kfree(socdev->card->codec);
-       socdev->card->codec = NULL;
+       snd_soc_free_ac97_codec(codec);
        return ret;
 }
 
-static int stac9766_codec_remove(struct platform_device *pdev)
+static int stac9766_codec_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 == NULL)
-               return 0;
-
-       snd_soc_free_pcms(socdev);
        snd_soc_free_ac97_codec(codec);
-       kfree(codec->reg_cache);
-       kfree(codec);
        return 0;
 }
 
-struct snd_soc_codec_device soc_codec_dev_stac9766 = {
+static struct snd_soc_codec_driver soc_codec_dev_stac9766 = {
+       .write = stac9766_ac97_write,
+       .read = stac9766_ac97_read,
+       .set_bias_level = stac9766_set_bias_level,
        .probe = stac9766_codec_probe,
        .remove = stac9766_codec_remove,
        .suspend = stac9766_codec_suspend,
        .resume = stac9766_codec_resume,
+       .reg_cache_size = sizeof(stac9766_reg),
+       .reg_word_size = sizeof(u16),
+       .reg_cache_step = 2,
+};
+
+static __devinit int stac9766_probe(struct platform_device *pdev)
+{
+       return snd_soc_register_codec(&pdev->dev,
+                       &soc_codec_dev_stac9766, stac9766_dai, ARRAY_SIZE(stac9766_dai));
+}
+
+static int __devexit stac9766_remove(struct platform_device *pdev)
+{
+       snd_soc_unregister_codec(&pdev->dev);
+       return 0;
+}
+
+static struct platform_driver stac9766_codec_driver = {
+       .driver = {
+                       .name = "stac9766-codec",
+                       .owner = THIS_MODULE,
+       },
+
+       .probe = stac9766_probe,
+       .remove = __devexit_p(stac9766_remove),
 };
-EXPORT_SYMBOL_GPL(soc_codec_dev_stac9766);
+
+static int __init stac9766_init(void)
+{
+       return platform_driver_register(&stac9766_codec_driver);
+}
+module_init(stac9766_init);
+
+static void __exit stac9766_exit(void)
+{
+       platform_driver_unregister(&stac9766_codec_driver);
+}
+module_exit(stac9766_exit);
 
 MODULE_DESCRIPTION("ASoC stac9766 driver");
 MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");