Add a generic way to create jack inputs for auxiliary jack detection drivers (e.g. via i2c, spi), which are not part of any real codec. The simple-card can be used as combining card driver to add the jacks, no new one is required.
Create a jack (for input-events) for jack devices in the auxiliary device list (aux_devs). A device which has the functions set_jack and get_jack_supported_type counts as jack device.
Add a devicetree entry, in case not all input types are required. simple-card,aux-jack-types: Array of snd_jack_type to create jack-input-event for jack devices in aux-devs. If the setting is 0, the supported type of the device is used.
Signed-off-by: Astrid Rost astrid.rost@axis.com --- include/sound/simple_card_utils.h | 3 ++ sound/soc/generic/simple-card-utils.c | 63 +++++++++++++++++++++++++++ sound/soc/generic/simple-card.c | 4 ++ 3 files changed, 70 insertions(+)
diff --git a/include/sound/simple_card_utils.h b/include/sound/simple_card_utils.h index 38590f1ae9ee..a3f3f3aa9e6e 100644 --- a/include/sound/simple_card_utils.h +++ b/include/sound/simple_card_utils.h @@ -69,6 +69,7 @@ struct asoc_simple_priv { } *dai_props; struct asoc_simple_jack hp_jack; struct asoc_simple_jack mic_jack; + struct snd_soc_jack *aux_jacks; struct snd_soc_dai_link *dai_link; struct asoc_simple_dai *dais; struct snd_soc_dai_link_component *dlcs; @@ -187,6 +188,8 @@ int asoc_simple_parse_pin_switches(struct snd_soc_card *card, int asoc_simple_init_jack(struct snd_soc_card *card, struct asoc_simple_jack *sjack, int is_hp, char *prefix, char *pin); +int asoc_simple_init_aux_jacks(struct asoc_simple_priv *priv, + char *prefix); int asoc_simple_init_priv(struct asoc_simple_priv *priv, struct link_info *li); int asoc_simple_remove(struct platform_device *pdev); diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index e35becce9635..668123549fbf 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -786,6 +786,69 @@ int asoc_simple_init_jack(struct snd_soc_card *card, } EXPORT_SYMBOL_GPL(asoc_simple_init_jack);
+int asoc_simple_init_aux_jacks(struct asoc_simple_priv *priv, char *prefix) +{ + struct snd_soc_card *card = simple_priv_to_card(priv); + struct device *dev = card->dev; + struct snd_soc_component *component; + char prop[128]; + int found_jack_index = 0; + int num = 0; + int ret; + + if (priv->aux_jacks) + return 0; + + snprintf(prop, sizeof(prop), "%saux-jack-types", prefix); + num = of_property_count_u32_elems(dev->of_node, prop); + if (num < 1) + return 0; + + priv->aux_jacks = devm_kcalloc(card->dev, num, + sizeof(struct snd_soc_jack), GFP_KERNEL); + if (!priv->aux_jacks) + return -ENOMEM; + + for_each_card_auxs(card, component) { + if (found_jack_index >= num) + break; + + if (component->driver->set_jack && + component->driver->get_jack_supported_type) { + char id[128]; + int type = 0; + struct snd_soc_jack *jack = + &(priv->aux_jacks[found_jack_index]); + int type_supp_mask = + snd_soc_component_get_jack_supported_type( + component); + + ret = of_property_read_u32_index( + dev->of_node, prop, found_jack_index++, &type); + if (ret) + continue; + + if (type) + type &= type_supp_mask; /* use only supported types */ + else + type = type_supp_mask; /* use all supported types */ + + if (!type) + continue; + + /* create jack */ + snprintf(id, sizeof(id), "%s-jack", component->name); + ret = snd_soc_card_jack_new(card, id, type, jack); + if (ret) + continue; + + (void)snd_soc_component_set_jack(component, jack, NULL); + } + } + return 0; +} +EXPORT_SYMBOL_GPL(asoc_simple_init_aux_jacks); + int asoc_simple_init_priv(struct asoc_simple_priv *priv, struct link_info *li) { diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c index feb55b66239b..e98932c16754 100644 --- a/sound/soc/generic/simple-card.c +++ b/sound/soc/generic/simple-card.c @@ -623,6 +623,10 @@ static int simple_soc_probe(struct snd_soc_card *card) if (ret < 0) return ret;
+ ret = asoc_simple_init_aux_jacks(priv, PREFIX); + if (ret < 0) + return ret; + return 0; }