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ALSA: jack: extend snd_jack_new to support phantom jack 

Dont create input devices for phantom jacks.

Here, we extend snd_jack_new() to support phantom jack creating:
pass in a bool param for [non-]phantom flag, and a bool param
initial_jack to indicate whether we need to create a kctl at
this stage.

We can also add a kctl to the jack after its created meaning we
can now integrate the HDA and ASoC jacks.

Signed-off-by: Jie Yang <yang.jie@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Jie Yang 2015-04-27 21:20:58 +08:00 committed by Takashi Iwai
parent b8dd086674
commit 4e3f0dc658
5 changed files with 35 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/sound/jack.h
View File

@ -87,7 +87,7 @@ struct snd_jack {
#ifdef CONFIG_SND_JACK
int snd_jack_new(struct snd_card *card, const char *id, int type,
struct snd_jack **jack);
struct snd_jack **jack, bool initial_kctl, bool phantom_jack);
int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask);
void snd_jack_set_parent(struct snd_jack *jack, struct device *parent);
int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,
@ -97,7 +97,7 @@ void snd_jack_report(struct snd_jack *jack, int status);
#else
static inline int snd_jack_new(struct snd_card *card, const char *id, int type,
struct snd_jack **jack)
struct snd_jack **jack, bool initial_kctl, bool phantom_jack)
{
return 0;
}

44
sound/core/jack.c
View File

@ -191,6 +191,8 @@ EXPORT_SYMBOL(snd_jack_add_new_kctl);
* @type: a bitmask of enum snd_jack_type values that can be detected by
* this jack
* @jjack: Used to provide the allocated jack object to the caller.
* @initial_kctl: if true, create a kcontrol and add it to the jack list.
* @phantom_jack: Don't create a input device for phantom jacks.
*
* Creates a new jack object.
*
@ -198,9 +200,10 @@ EXPORT_SYMBOL(snd_jack_add_new_kctl);
* On success @jjack will be initialised.
*/
int snd_jack_new(struct snd_card *card, const char *id, int type,
struct snd_jack **jjack)
struct snd_jack **jjack, bool initial_kctl, bool phantom_jack)
{
struct snd_jack *jack;
struct snd_jack_kctl *jack_kctl = NULL;
int err;
int i;
static struct snd_device_ops ops = {
@ -209,27 +212,37 @@ int snd_jack_new(struct snd_card *card, const char *id, int type,
.dev_disconnect = snd_jack_dev_disconnect,
};
if (initial_kctl) {
jack_kctl = snd_jack_kctl_new(card, id, type);
if (!jack_kctl)
return -ENOMEM;
}
jack = kzalloc(sizeof(struct snd_jack), GFP_KERNEL);
if (jack == NULL)
return -ENOMEM;
jack->id = kstrdup(id, GFP_KERNEL);
jack->input_dev = input_allocate_device();
if (jack->input_dev == NULL) {
err = -ENOMEM;
goto fail_input;
/* don't creat input device for phantom jack */
if (!phantom_jack) {
jack->input_dev = input_allocate_device();
if (jack->input_dev == NULL) {
err = -ENOMEM;
goto fail_input;
}
jack->input_dev->phys = "ALSA";
jack->type = type;
for (i = 0; i < SND_JACK_SWITCH_TYPES; i++)
if (type & (1 << i))
input_set_capability(jack->input_dev, EV_SW,
jack_switch_types[i]);
}
jack->input_dev->phys = "ALSA";
jack->type = type;
for (i = 0; i < SND_JACK_SWITCH_TYPES; i++)
if (type & (1 << i))
input_set_capability(jack->input_dev, EV_SW,
jack_switch_types[i]);
err = snd_device_new(card, SNDRV_DEV_JACK, jack, &ops);
if (err < 0)
goto fail_input;
@ -237,6 +250,9 @@ int snd_jack_new(struct snd_card *card, const char *id, int type,
jack->card = card;
INIT_LIST_HEAD(&jack->kctl_list);
if (initial_kctl)
snd_jack_kctl_add(jack, jack_kctl);
*jjack = jack;
return 0;

2
sound/pci/hda/hda_jack.c
View File

@ -417,7 +417,7 @@ static int __snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid,
if (!phantom_jack) {
jack->type = get_input_jack_type(codec, nid);
err = snd_jack_new(codec->card, name, jack->type,
&jack->jack);
&jack->jack, false, false);
if (err < 0)
return err;
jack->jack->private_data = jack;

2
sound/pci/oxygen/xonar_wm87x6.c
View File

@ -286,7 +286,7 @@ static void xonar_ds_init(struct oxygen *chip)
xonar_enable_output(chip);
snd_jack_new(chip->card, "Headphone",
SND_JACK_HEADPHONE, &data->hp_jack);
SND_JACK_HEADPHONE, &data->hp_jack, false, false);
xonar_ds_handle_hp_jack(chip);
snd_component_add(chip->card, "WM8776");

2
sound/soc/soc-jack.c
View File

@ -48,7 +48,7 @@ int snd_soc_card_jack_new(struct snd_soc_card *card, const char *id, int type,
INIT_LIST_HEAD(&jack->jack_zones);
BLOCKING_INIT_NOTIFIER_HEAD(&jack->notifier);
ret = snd_jack_new(card->snd_card, id, type, &jack->jack);
ret = snd_jack_new(card->snd_card, id, type, &jack->jack, false, false);
if (ret)
return ret;