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// SPDX-License-Identifier: GPL-2.0
//
// soc-card.c
//
// Copyright (C) 2019 Renesas Electronics Corp.
// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
//
#include <sound/soc.h>
#include <sound/jack.h>
#define soc_card_ret(dai, ret) _soc_card_ret(dai, __func__, ret)
static inline int _soc_card_ret(struct snd_soc_card *card,
const char *func, int ret)
{
switch (ret) {
case -EPROBE_DEFER:
case -ENOTSUPP:
case 0:
break;
default:
dev_err(card->dev,
"ASoC: error at %s on %s: %d\n",
func, card->name, ret);
}
return ret;
}
struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card,
const char *name)
{
struct snd_card *card = soc_card->snd_card;
struct snd_kcontrol *kctl;
if (unlikely(!name))
return NULL;
list_for_each_entry(kctl, &card->controls, list)
if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name)))
return kctl;
return NULL;
}
EXPORT_SYMBOL_GPL(snd_soc_card_get_kcontrol);
/**
* snd_soc_card_jack_new - Create a new jack
* @card: ASoC card
* @id: an identifying string for this jack
* @type: a bitmask of enum snd_jack_type values that can be detected by
* this jack
* @jack: structure to use for the jack
* @pins: Array of jack pins to be added to the jack or NULL
* @num_pins: Number of elements in the @pins array
*
* Creates a new jack object.
*
* Returns zero if successful, or a negative error code on failure.
* On success jack will be initialised.
*/
int snd_soc_card_jack_new(struct snd_soc_card *card, const char *id, int type,
struct snd_soc_jack *jack,
struct snd_soc_jack_pin *pins, unsigned int num_pins)
{
int ret;
mutex_init(&jack->mutex);
jack->card = card;
INIT_LIST_HEAD(&jack->pins);
INIT_LIST_HEAD(&jack->jack_zones);
BLOCKING_INIT_NOTIFIER_HEAD(&jack->notifier);
ret = snd_jack_new(card->snd_card, id, type, &jack->jack, false, false);
if (ret)
goto end;
if (num_pins)
ret = snd_soc_jack_add_pins(jack, num_pins, pins);
end:
return soc_card_ret(card, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_card_jack_new);
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