diff options
| -rw-r--r-- | include/sound/soc.h | 5 | ||||
| -rw-r--r-- | sound/soc/soc-core.c | 43 |
2 files changed, 48 insertions, 0 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h index ce3661d07c2..f86e455d382 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -161,6 +161,8 @@ extern struct snd_ac97_bus_ops soc_ac97_ops; int snd_soc_register_platform(struct snd_soc_platform *platform); void snd_soc_unregister_platform(struct snd_soc_platform *platform); +int snd_soc_register_codec(struct snd_soc_codec *codec); +void snd_soc_unregister_codec(struct snd_soc_codec *codec); /* pcm <-> DAI connect */ void snd_soc_free_pcms(struct snd_soc_device *socdev); @@ -247,6 +249,9 @@ struct snd_soc_codec { char *name; struct module *owner; struct mutex mutex; + struct device *dev; + + struct list_head list; /* callbacks */ int (*set_bias_level)(struct snd_soc_codec *, diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 4d2db7cfaf4..b098c0b4c58 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -47,6 +47,7 @@ static DEFINE_MUTEX(client_mutex); static LIST_HEAD(card_list); static LIST_HEAD(dai_list); static LIST_HEAD(platform_list); +static LIST_HEAD(codec_list); static int snd_soc_register_card(struct snd_soc_card *card); static int snd_soc_unregister_card(struct snd_soc_card *card); @@ -2224,6 +2225,48 @@ void snd_soc_unregister_platform(struct snd_soc_platform *platform) } EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); +/** + * snd_soc_register_codec - Register a codec with the ASoC core + * + * @param codec codec to register + */ +int snd_soc_register_codec(struct snd_soc_codec *codec) +{ + if (!codec->name) + return -EINVAL; + + /* The device should become mandatory over time */ + if (!codec->dev) + printk(KERN_WARNING "No device for codec %s\n", codec->name); + + INIT_LIST_HEAD(&codec->list); + + mutex_lock(&client_mutex); + list_add(&codec->list, &codec_list); + snd_soc_instantiate_cards(); + mutex_unlock(&client_mutex); + + pr_debug("Registered codec '%s'\n", codec->name); + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_register_codec); + +/** + * snd_soc_unregister_codec - Unregister a codec from the ASoC core + * + * @param codec codec to unregister + */ +void snd_soc_unregister_codec(struct snd_soc_codec *codec) +{ + mutex_lock(&client_mutex); + list_del(&codec->list); + mutex_unlock(&client_mutex); + + pr_debug("Unregistered codec '%s'\n", codec->name); +} +EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); + static int __init snd_soc_init(void) { #ifdef CONFIG_DEBUG_FS |