There are many codecs with the capability of jack detection. Usually, we create a jack on machine driver but there is no common function for machine driver to deliver the jack pointer to codec driver. snd_soc_codec_set_jack can be used for delivering the jack pointer to codec driver and enable the jack detection function. To make it work, codec driver need to define a callback function to receive the jack pointer and do all necessary procedure for enabling jack detection.
Signed-off-by: Bard Liao bardliao@realtek.com --- include/sound/soc.h | 4 ++++ sound/soc/soc-jack.c | 18 ++++++++++++++++++ 2 files changed, 22 insertions(+)
diff --git a/include/sound/soc.h b/include/sound/soc.h index 77ef074..864597d 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -434,6 +434,8 @@ int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, int source, unsigned int freq, int dir); int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, unsigned int freq_in, unsigned int freq_out); +int snd_soc_codec_set_jack(struct snd_soc_codec *codec, + struct snd_soc_jack *jack, void *data);
int snd_soc_register_card(struct snd_soc_card *card); int snd_soc_unregister_card(struct snd_soc_card *card); @@ -913,6 +915,8 @@ struct snd_soc_codec_driver { int clk_id, int source, unsigned int freq, int dir); int (*set_pll)(struct snd_soc_codec *codec, int pll_id, int source, unsigned int freq_in, unsigned int freq_out); + int (*set_jack)(struct snd_soc_codec *codec, + struct snd_soc_jack *jack, void *data);
/* codec IO */ struct regmap *(*get_regmap)(struct device *); diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c index a03dcbb9..7daf21f 100644 --- a/sound/soc/soc-jack.c +++ b/sound/soc/soc-jack.c @@ -23,6 +23,24 @@ #include <trace/events/asoc.h>
/** + * snd_soc_codec_set_jack - configure codec jack. + * @codec: CODEC + * @jack: structure to use for the jack + * @data: can be used if codec driver need extra data for configuring jack + * + * Configures and enables jack detection function. + */ +int snd_soc_codec_set_jack(struct snd_soc_codec *codec, + struct snd_soc_jack *jack, void *data) +{ + if (codec->driver->set_jack) + return codec->driver->set_jack(codec, jack, data); + else + return -EINVAL; +} +EXPORT_SYMBOL_GPL(snd_soc_codec_set_jack); + +/** * snd_soc_card_jack_new - Create a new jack * @card: ASoC card * @id: an identifying string for this jack