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 returns a valid value on
get_jack_type counts as jack device; set_jack is required
to add the jack to the device.
Signed-off-by: Astrid Rost <astrid.rost@xxxxxxxx>
---
include/sound/simple_card_utils.h | 3 ++
sound/soc/generic/simple-card-utils.c | 49 +++++++++++++++++++++++++++
sound/soc/generic/simple-card.c | 4 +++
3 files changed, 56 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..56552a616f21 100644
--- a/sound/soc/generic/simple-card-utils.c
+++ b/sound/soc/generic/simple-card-utils.c
@@ -786,6 +786,55 @@ 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 snd_soc_component *component;
+ int found_jack_index = 0;
+ int type = 0;
+ int num = 0;
+ int ret;
+
+ if (priv->aux_jacks)
+ return 0;
+
+ for_each_card_auxs(card, component) {
+ type = snd_soc_component_get_jack_type(component);
+ if (type > 0)
+ num++;
+ }
+ 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) {
+ char id[128];
+ struct snd_soc_jack *jack;
+
+ if (found_jack_index >= num)
+ break;
+
+ type = snd_soc_component_get_jack_type(component);
+ if (type <= 0)
+ continue;
+
+ /* create jack */
+ jack = &(priv->aux_jacks[found_jack_index++]);
+ 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;
}
--
2.30.2
