[alsa-devel] [RFC 16/16] ASoC: multi-component - Wolfson WM97xx AC97 CODECs
Liam Girdwood
lrg at slimlogic.co.uk
Fri Jun 25 19:53:03 CEST 2010
Move Wolfson WM97xx AC97 CODECs to multi-component model.
This patch changes the probe() and remove() of the CODEC drivers as follows:-
o Make CODEC driver a platform device (non MFD codecs only)
o Moved all struct snd_soc_codec list, mutex, etc initialiasation to core.
o Removed all static codec pointers (drivers now support > 1 codec dev)
o snd_soc_register_pcms() now done by core.
o snd_soc_register_dai() folded into snd_soc_register_codec().
o codec cache can now be malloc()ed by core.
Signed-off-by: Liam Girdwood <lrg at slimlogic.co.uk>
---
sound/soc/codecs/wm9705.c | 114 ++++++++++++++++++-----------------------
sound/soc/codecs/wm9705.h | 4 +-
sound/soc/codecs/wm9712.c | 122 +++++++++++++++++++-------------------------
sound/soc/codecs/wm9712.h | 4 +-
sound/soc/codecs/wm9713.c | 125 ++++++++++++++++++++-------------------------
sound/soc/codecs/wm9713.h | 4 +-
6 files changed, 166 insertions(+), 207 deletions(-)
diff --git a/sound/soc/codecs/wm9705.c b/sound/soc/codecs/wm9705.c
index 8793341..17df388 100644
--- a/sound/soc/codecs/wm9705.c
+++ b/sound/soc/codecs/wm9705.c
@@ -248,8 +248,7 @@ static int ac97_prepare(struct snd_pcm_substream *substream,
{
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;
u16 vra;
@@ -273,7 +272,7 @@ static struct snd_soc_dai_ops wm9705_dai_ops = {
.prepare = ac97_prepare,
};
-struct snd_soc_dai wm9705_dai[] = {
+struct snd_soc_dai_driver wm9705_dai[] = {
{
.name = "AC97 HiFi",
.ac97_control = 1,
@@ -318,20 +317,15 @@ static int wm9705_reset(struct snd_soc_codec *codec)
}
#ifdef CONFIG_PM
-static int wm9705_soc_suspend(struct platform_device *pdev, pm_message_t msg)
+static int wm9705_soc_suspend(struct snd_soc_codec *codec, pm_message_t msg)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
-
soc_ac97_ops.write(codec->ac97, AC97_POWERDOWN, 0xffff);
return 0;
}
-static int wm9705_soc_resume(struct platform_device *pdev)
+static int wm9705_soc_resume(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
int i, ret;
u16 *cache = codec->reg_cache;
@@ -352,49 +346,18 @@ static int wm9705_soc_resume(struct platform_device *pdev)
#define wm9705_soc_resume NULL
#endif
-static int wm9705_soc_probe(struct platform_device *pdev)
+static int wm9705_soc_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 "WM9705 SoC Audio Codec\n");
- 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(wm9705_reg, sizeof(wm9705_reg), GFP_KERNEL);
- if (codec->reg_cache == NULL) {
- ret = -ENOMEM;
- goto cache_err;
- }
- codec->reg_cache_size = sizeof(wm9705_reg);
- codec->reg_cache_step = 2;
-
- codec->name = "WM9705";
- codec->owner = THIS_MODULE;
- codec->dai = wm9705_dai;
- codec->num_dai = ARRAY_SIZE(wm9705_dai);
- codec->write = ac97_write;
- codec->read = ac97_read;
- 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) {
printk(KERN_ERR "wm9705: failed to register AC97 codec\n");
- goto codec_err;
+ return ret;
}
- /* register pcms */
- ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
- if (ret < 0)
- goto pcm_err;
-
ret = wm9705_reset(codec);
if (ret)
goto reset_err;
@@ -406,41 +369,66 @@ static int wm9705_soc_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->reg_cache);
-cache_err:
- kfree(socdev->card->codec);
- socdev->card->codec = NULL;
return ret;
}
-static int wm9705_soc_remove(struct platform_device *pdev)
+static int wm9705_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 == NULL)
- return 0;
-
- snd_soc_dapm_free(socdev);
- 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_wm9705 = {
+struct snd_soc_codec_driver soc_codec_dev_wm9705 = {
+ .name = "wm9705",
+ .owner = THIS_MODULE,
.probe = wm9705_soc_probe,
.remove = wm9705_soc_remove,
.suspend = wm9705_soc_suspend,
- .resume = wm9705_soc_resume,
+ .resume = wm9705_soc_resume,
+ .read = ac97_read,
+ .write = ac97_write,
+ .reg_cache_size = sizeof(wm9705_reg),
+ .reg_word_size = sizeof(u16),
+ .reg_cache_step = 2,
+ .reg_cache_default = wm9705_reg,
};
EXPORT_SYMBOL_GPL(soc_codec_dev_wm9705);
+static __devinit int wm9705_probe(struct platform_device *pdev)
+{
+ return snd_soc_register_codec(&pdev->dev, pdev->id,
+ &soc_codec_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai));
+}
+
+static int __devexit wm9705_remove(struct platform_device *pdev)
+{
+ snd_soc_unregister_codec(&pdev->dev, pdev->id);
+ return 0;
+}
+
+static struct platform_driver wm9705_codec_driver = {
+ .driver = {
+ .name = "wm9705-codec",
+ .owner = THIS_MODULE,
+ },
+
+ .probe = wm9705_probe,
+ .remove = __devexit_p(wm9705_remove),
+};
+
+static int __init wm9705_init(void)
+{
+ return platform_driver_register(&wm9705_codec_driver);
+}
+module_init(wm9705_init);
+
+static void __exit wm9705_exit(void)
+{
+ platform_driver_unregister(&wm9705_codec_driver);
+}
+module_exit(wm9705_exit);
+
MODULE_DESCRIPTION("ASoC WM9705 driver");
MODULE_AUTHOR("Ian Molton");
MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/codecs/wm9705.h b/sound/soc/codecs/wm9705.h
index d380f11..189249e 100644
--- a/sound/soc/codecs/wm9705.h
+++ b/sound/soc/codecs/wm9705.h
@@ -8,7 +8,7 @@
#define WM9705_DAI_AC97_HIFI 0
#define WM9705_DAI_AC97_AUX 1
-extern struct snd_soc_dai wm9705_dai[2];
-extern struct snd_soc_codec_device soc_codec_dev_wm9705;
+extern struct snd_soc_dai_driver wm9705_dai[2];
+extern struct snd_soc_codec_driver soc_codec_dev_wm9705;
#endif
diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c
index 28790a2..2adb9d8 100644
--- a/sound/soc/codecs/wm9712.c
+++ b/sound/soc/codecs/wm9712.c
@@ -478,8 +478,7 @@ static int ac97_prepare(struct snd_pcm_substream *substream,
{
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;
u16 vra;
@@ -499,8 +498,7 @@ static int ac97_aux_prepare(struct snd_pcm_substream *substream,
{
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;
u16 vra, xsle;
vra = ac97_read(codec, AC97_EXTENDED_STATUS);
@@ -526,7 +524,7 @@ static struct snd_soc_dai_ops wm9712_dai_ops_aux = {
.prepare = ac97_aux_prepare,
};
-struct snd_soc_dai wm9712_dai[] = {
+struct snd_soc_dai_driver wm9712_dai[] = {
{
.name = "AC97 HiFi",
.ac97_control = 1,
@@ -597,20 +595,15 @@ err:
return -EIO;
}
-static int wm9712_soc_suspend(struct platform_device *pdev,
+static int wm9712_soc_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;
-
wm9712_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}
-static int wm9712_soc_resume(struct platform_device *pdev)
+static int wm9712_soc_resume(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
int i, ret;
u16 *cache = codec->reg_cache;
@@ -635,51 +628,18 @@ static int wm9712_soc_resume(struct platform_device *pdev)
return ret;
}
-static int wm9712_soc_probe(struct platform_device *pdev)
+static int wm9712_soc_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 "WM9711/WM9712 SoC Audio Codec %s\n", WM9712_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(wm9712_reg, sizeof(wm9712_reg), GFP_KERNEL);
-
- if (codec->reg_cache == NULL) {
- ret = -ENOMEM;
- goto cache_err;
- }
- codec->reg_cache_size = sizeof(wm9712_reg);
- codec->reg_cache_step = 2;
-
- codec->name = "WM9712";
- codec->owner = THIS_MODULE;
- codec->dai = wm9712_dai;
- codec->num_dai = ARRAY_SIZE(wm9712_dai);
- codec->write = ac97_write;
- codec->read = ac97_read;
- codec->set_bias_level = wm9712_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) {
printk(KERN_ERR "wm9712: failed to register AC97 codec\n");
- goto codec_err;
+ return ret;
}
- /* register pcms */
- ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
- if (ret < 0)
- goto pcm_err;
-
ret = wm9712_reset(codec, 0);
if (ret < 0) {
printk(KERN_ERR "Failed to reset WM9712: AC97 link error\n");
@@ -697,43 +657,67 @@ static int wm9712_soc_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->reg_cache);
-
-cache_err:
- kfree(socdev->card->codec);
- socdev->card->codec = NULL;
return ret;
}
-static int wm9712_soc_remove(struct platform_device *pdev)
+static int wm9712_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 == NULL)
- return 0;
-
- snd_soc_dapm_free(socdev);
- 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_wm9712 = {
+struct snd_soc_codec_driver soc_codec_dev_wm9712 = {
+ .name = "wm9712",
+ .owner = THIS_MODULE,
.probe = wm9712_soc_probe,
.remove = wm9712_soc_remove,
.suspend = wm9712_soc_suspend,
- .resume = wm9712_soc_resume,
+ .resume = wm9712_soc_resume,
+ .read = ac97_read,
+ .write = ac97_write,
+ .set_bias_level = wm9712_set_bias_level,
+ .reg_cache_size = sizeof(wm9712_reg),
+ .reg_word_size = sizeof(u16),
+ .reg_cache_step = 2,
+ .reg_cache_default = wm9712_reg,
};
EXPORT_SYMBOL_GPL(soc_codec_dev_wm9712);
+static __devinit int wm9712_probe(struct platform_device *pdev)
+{
+ return snd_soc_register_codec(&pdev->dev, pdev->id,
+ &soc_codec_dev_wm9712, wm9712_dai, ARRAY_SIZE(wm9712_dai));
+}
+
+static int __devexit wm9712_remove(struct platform_device *pdev)
+{
+ snd_soc_unregister_codec(&pdev->dev, pdev->id);
+ return 0;
+}
+
+static struct platform_driver wm9712_codec_driver = {
+ .driver = {
+ .name = "wm9712-codec",
+ .owner = THIS_MODULE,
+ },
+
+ .probe = wm9712_probe,
+ .remove = __devexit_p(wm9712_remove),
+};
+
+static int __init wm9712_init(void)
+{
+ return platform_driver_register(&wm9712_codec_driver);
+}
+module_init(wm9712_init);
+
+static void __exit wm9712_exit(void)
+{
+ platform_driver_unregister(&wm9712_codec_driver);
+}
+module_exit(wm9712_exit);
+
MODULE_DESCRIPTION("ASoC WM9711/WM9712 driver");
MODULE_AUTHOR("Liam Girdwood");
MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/wm9712.h b/sound/soc/codecs/wm9712.h
index d29e8a1..a275bf7 100644
--- a/sound/soc/codecs/wm9712.h
+++ b/sound/soc/codecs/wm9712.h
@@ -8,7 +8,7 @@
#define WM9712_DAI_AC97_HIFI 0
#define WM9712_DAI_AC97_AUX 1
-extern struct snd_soc_dai wm9712_dai[2];
-extern struct snd_soc_codec_device soc_codec_dev_wm9712;
+extern struct snd_soc_dai_driver wm9712_dai[2];
+extern struct snd_soc_codec_driver soc_codec_dev_wm9712;
#endif
diff --git a/sound/soc/codecs/wm9713.c b/sound/soc/codecs/wm9713.c
index 34e0c91..44c6a9a 100644
--- a/sound/soc/codecs/wm9713.c
+++ b/sound/soc/codecs/wm9713.c
@@ -1057,7 +1057,7 @@ static struct snd_soc_dai_ops wm9713_dai_ops_voice = {
.set_tristate = wm9713_set_dai_tristate,
};
-struct snd_soc_dai wm9713_dai[] = {
+struct snd_soc_dai_driver wm9713_dai[] = {
{
.name = "AC97 HiFi",
.ac97_control = 1,
@@ -1152,11 +1152,9 @@ static int wm9713_set_bias_level(struct snd_soc_codec *codec,
return 0;
}
-static int wm9713_soc_suspend(struct platform_device *pdev,
+static int wm9713_soc_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;
u16 reg;
/* Disable everything except touchpanel - that will be handled
@@ -1171,10 +1169,8 @@ static int wm9713_soc_suspend(struct platform_device *pdev,
return 0;
}
-static int wm9713_soc_resume(struct platform_device *pdev)
+static int wm9713_soc_resume(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
struct wm9713_priv *wm9713 = snd_soc_codec_get_drvdata(codec);
int i, ret;
u16 *cache = codec->reg_cache;
@@ -1204,53 +1200,20 @@ static int wm9713_soc_resume(struct platform_device *pdev)
return ret;
}
-static int wm9713_soc_probe(struct platform_device *pdev)
+static int wm9713_soc_probe(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec;
+ struct wm9713_priv *wm9713;
int ret = 0, reg;
- socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec),
- GFP_KERNEL);
- if (socdev->card->codec == NULL)
+ wm9713 = kzalloc(sizeof(struct wm9713_priv), GFP_KERNEL);
+ if (wm9713 == NULL)
return -ENOMEM;
- codec = socdev->card->codec;
- mutex_init(&codec->mutex);
-
- codec->reg_cache = kmemdup(wm9713_reg, sizeof(wm9713_reg), GFP_KERNEL);
- if (codec->reg_cache == NULL) {
- ret = -ENOMEM;
- goto cache_err;
- }
- codec->reg_cache_size = sizeof(wm9713_reg);
- codec->reg_cache_step = 2;
-
- snd_soc_codec_set_drvdata(codec, kzalloc(sizeof(struct wm9713_priv),
- GFP_KERNEL));
- if (snd_soc_codec_get_drvdata(codec) == NULL) {
- ret = -ENOMEM;
- goto priv_err;
- }
-
- codec->name = "WM9713";
- codec->owner = THIS_MODULE;
- codec->dai = wm9713_dai;
- codec->num_dai = ARRAY_SIZE(wm9713_dai);
- codec->write = ac97_write;
- codec->read = ac97_read;
- codec->set_bias_level = wm9713_set_bias_level;
- INIT_LIST_HEAD(&codec->dapm_widgets);
- INIT_LIST_HEAD(&codec->dapm_paths);
+ snd_soc_codec_set_drvdata(codec, wm9713);
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 */
wm9713_reset(codec, 0);
@@ -1273,47 +1236,71 @@ static int wm9713_soc_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(snd_soc_codec_get_drvdata(codec));
-
-priv_err:
- kfree(codec->reg_cache);
-
-cache_err:
- kfree(socdev->card->codec);
- socdev->card->codec = NULL;
+ kfree(wm9713);
return ret;
}
-static int wm9713_soc_remove(struct platform_device *pdev)
+static int wm9713_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 == NULL)
- return 0;
-
- snd_soc_dapm_free(socdev);
- snd_soc_free_pcms(socdev);
+ struct wm9713_priv *wm9713 = snd_soc_codec_get_drvdata(codec);
snd_soc_free_ac97_codec(codec);
- kfree(snd_soc_codec_get_drvdata(codec));
- kfree(codec->reg_cache);
- kfree(codec);
+ kfree(wm9713);
return 0;
}
-struct snd_soc_codec_device soc_codec_dev_wm9713 = {
+struct snd_soc_codec_driver soc_codec_dev_wm9713 = {
+ .name = "WM9713",
+ .owner = THIS_MODULE,
.probe = wm9713_soc_probe,
.remove = wm9713_soc_remove,
.suspend = wm9713_soc_suspend,
.resume = wm9713_soc_resume,
+ .read = ac97_read,
+ .write = ac97_write,
+ .set_bias_level = wm9713_set_bias_level,
+ .reg_cache_size = sizeof(wm9713_reg),
+ .reg_word_size = sizeof(u16),
+ .reg_cache_step = 2,
+ .reg_cache_default = wm9713_reg,
};
EXPORT_SYMBOL_GPL(soc_codec_dev_wm9713);
+static __devinit int wm9713_probe(struct platform_device *pdev)
+{
+ return snd_soc_register_codec(&pdev->dev, pdev->id,
+ &soc_codec_dev_wm9713, wm9713_dai, ARRAY_SIZE(wm9713_dai));
+}
+
+static int __devexit wm9713_remove(struct platform_device *pdev)
+{
+ snd_soc_unregister_codec(&pdev->dev, pdev->id);
+ return 0;
+}
+
+static struct platform_driver wm9713_codec_driver = {
+ .driver = {
+ .name = "wm9713-codec",
+ .owner = THIS_MODULE,
+ },
+
+ .probe = wm9713_probe,
+ .remove = __devexit_p(wm9713_remove),
+};
+
+static int __init wm9713_init(void)
+{
+ return platform_driver_register(&wm9713_codec_driver);
+}
+module_init(wm9713_init);
+
+static void __exit wm9713_exit(void)
+{
+ platform_driver_unregister(&wm9713_codec_driver);
+}
+module_exit(wm9713_exit);
+
MODULE_DESCRIPTION("ASoC WM9713/WM9714 driver");
MODULE_AUTHOR("Liam Girdwood");
MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/wm9713.h b/sound/soc/codecs/wm9713.h
index 63b8d81..0a38180 100644
--- a/sound/soc/codecs/wm9713.h
+++ b/sound/soc/codecs/wm9713.h
@@ -45,8 +45,8 @@
#define WM9713_DAI_AC97_AUX 1
#define WM9713_DAI_PCM_VOICE 2
-extern struct snd_soc_codec_device soc_codec_dev_wm9713;
-extern struct snd_soc_dai wm9713_dai[3];
+extern struct snd_soc_codec_driver soc_codec_dev_wm9713;
+extern struct snd_soc_dai_driver wm9713_dai[3];
int wm9713_reset(struct snd_soc_codec *codec, int try_warm);
--
1.7.0.4
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