Moved generic codecs to multi-component model.
This patch changes the probe() and remove() of the CODEC drivers as follows:-
o Make CODEC driver a platform driver 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@slimlogic.co.uk --- sound/soc/codecs/ac97.c | 124 +++++++++++++++------------------- sound/soc/codecs/ac97.h | 4 +- sound/soc/codecs/spdif_transciever.c | 102 ++-------------------------- sound/soc/codecs/spdif_transciever.h | 4 +- 4 files changed, 65 insertions(+), 169 deletions(-)
diff --git a/sound/soc/codecs/ac97.c b/sound/soc/codecs/ac97.c index 1f5e57a..cc0b697 100644 --- a/sound/soc/codecs/ac97.c +++ b/sound/soc/codecs/ac97.c @@ -21,7 +21,6 @@ #include <sound/ac97_codec.h> #include <sound/initval.h> #include <sound/soc.h> -#include "ac97.h"
#define AC97_VERSION "0.6"
@@ -30,8 +29,7 @@ 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 = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? AC97_PCM_FRONT_DAC_RATE : AC97_PCM_LR_ADC_RATE; @@ -46,8 +44,8 @@ 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 +61,6 @@ 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 +75,49 @@ 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; + int ret;
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; + ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0); + if (ret < 0) { + printk(KERN_ERR "ASoC: failed to init gen ac97 glue\n"); + return 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->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; } @@ -175,13 +126,48 @@ 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"); diff --git a/sound/soc/codecs/ac97.h b/sound/soc/codecs/ac97.h index 281aa42..a924659 100644 --- a/sound/soc/codecs/ac97.h +++ b/sound/soc/codecs/ac97.h @@ -13,7 +13,7 @@ #ifndef __LINUX_SND_SOC_AC97_H #define __LINUX_SND_SOC_AC97_H
-extern struct snd_soc_codec_device soc_codec_dev_ac97; -extern struct snd_soc_dai ac97_dai; +extern struct snd_soc_codec_driver soc_codec_dev_ac97; +extern struct snd_soc_dai_driver ac97_dai;
#endif diff --git a/sound/soc/codecs/spdif_transciever.c b/sound/soc/codecs/spdif_transciever.c index 9119836..4c32b54 100644 --- a/sound/soc/codecs/spdif_transciever.c +++ b/sound/soc/codecs/spdif_transciever.c @@ -21,57 +21,16 @@ #include <sound/pcm.h> #include <sound/initval.h>
-#include "spdif_transciever.h" - MODULE_LICENSE("GPL");
#define STUB_RATES SNDRV_PCM_RATE_8000_96000 #define STUB_FORMATS SNDRV_PCM_FMTBIT_S16_LE
-static struct snd_soc_codec *spdif_dit_codec; - -static int spdif_dit_codec_probe(struct platform_device *pdev) -{ - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec; - int ret; - - if (spdif_dit_codec == NULL) { - dev_err(&pdev->dev, "Codec device not registered\n"); - return -ENODEV; - } - - socdev->card->codec = spdif_dit_codec; - codec = spdif_dit_codec; - - ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); - if (ret < 0) { - dev_err(codec->dev, "failed to create pcms: %d\n", ret); - goto err_create_pcms; - } - - return 0; - -err_create_pcms: - return ret; -} - -static int spdif_dit_codec_remove(struct platform_device *pdev) -{ - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - - snd_soc_free_pcms(socdev); - - return 0; -}
-struct snd_soc_codec_device soc_codec_dev_spdif_dit = { - .probe = spdif_dit_codec_probe, - .remove = spdif_dit_codec_remove, -}; EXPORT_SYMBOL_GPL(soc_codec_dev_spdif_dit); +static struct snd_soc_codec_driver soc_codec_spdif_dit;
-struct snd_soc_dai dit_stub_dai = { - .name = "DIT", +static struct snd_soc_dai_driver dit_stub_dai = { + .name = "dit-hifi", .playback = { .stream_name = "Playback", .channels_min = 1, @@ -80,65 +39,16 @@ struct snd_soc_dai dit_stub_dai = { .formats = STUB_FORMATS, }, }; -EXPORT_SYMBOL_GPL(dit_stub_dai);
static int spdif_dit_probe(struct platform_device *pdev) { - struct snd_soc_codec *codec; - int ret; - - if (spdif_dit_codec) { - dev_err(&pdev->dev, "Another Codec is registered\n"); - ret = -EINVAL; - goto err_reg_codec; - } - - codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); - if (codec == NULL) - return -ENOMEM; - - codec->dev = &pdev->dev; - - mutex_init(&codec->mutex); - - INIT_LIST_HEAD(&codec->dapm_widgets); - INIT_LIST_HEAD(&codec->dapm_paths); - - codec->name = "spdif-dit"; - codec->owner = THIS_MODULE; - codec->dai = &dit_stub_dai; - codec->num_dai = 1; - - spdif_dit_codec = codec; - - ret = snd_soc_register_codec(codec); - if (ret < 0) { - dev_err(codec->dev, "Failed to register codec: %d\n", ret); - goto err_reg_codec; - } - - dit_stub_dai.dev = &pdev->dev; - ret = snd_soc_register_dai(&dit_stub_dai); - if (ret < 0) { - dev_err(codec->dev, "Failed to register dai: %d\n", ret); - goto err_reg_dai; - } - - return 0; - -err_reg_dai: - snd_soc_unregister_codec(codec); -err_reg_codec: - kfree(spdif_dit_codec); - return ret; + return snd_soc_register_codec(&pdev->dev, &soc_codec_spdif_dit, + &dit_stub_dai, 1); }
static int spdif_dit_remove(struct platform_device *pdev) { - snd_soc_unregister_dai(&dit_stub_dai); - snd_soc_unregister_codec(spdif_dit_codec); - kfree(spdif_dit_codec); - spdif_dit_codec = NULL; + snd_soc_unregister_codec(&pdev->dev); return 0; }
diff --git a/sound/soc/codecs/spdif_transciever.h b/sound/soc/codecs/spdif_transciever.h index 1e10212..d686191 100644 --- a/sound/soc/codecs/spdif_transciever.h +++ b/sound/soc/codecs/spdif_transciever.h @@ -12,7 +12,7 @@ #ifndef CODEC_STUBS_H #define CODEC_STUBS_H
-extern struct snd_soc_codec_device soc_codec_dev_spdif_dit; -extern struct snd_soc_dai dit_stub_dai; +extern struct snd_soc_codec_driver soc_codec_spdif_dit; +extern struct snd_soc_dai_driver dit_stub_dai;
#endif /* CODEC_STUBS_H */