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ALSA: hda - Add snd_hda_get_input_pin_label() helper function

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Added snd_hda_get_input_pin_label() helper function to return the
string that can be used for control or capture-source ids.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2010-08-30 13:00:16 +02:00
parent 75e0eb24ee
commit d7b1ae9d88
2 changed files with 26 additions and 1 deletions
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25
sound/pci/hda/hda_codec.c
View File

@ -4654,12 +4654,35 @@ int snd_hda_parse_pin_def_config(struct hda_codec *codec,
}
EXPORT_SYMBOL_HDA(snd_hda_parse_pin_def_config);
/* labels for input pins */
/* labels for input pins - for obsoleted config stuff */
const char *auto_pin_cfg_labels[AUTO_PIN_LAST] = {
"Mic", "Front Mic", "Line", "Front Line", "CD", "Aux"
};
EXPORT_SYMBOL_HDA(auto_pin_cfg_labels);
static const char *input_labels[AUTO_PIN_LAST][4] = {
{ "Mic", "Mic 2", "Mic 3", "Mic 4" },
{ "Front Mic", "Front Mic 2", "Front Mic 3", "Front Mic 4" },
{ "Line", "Line 2", "Line 3", "Line 4" },
{ "Front Line", "Front Line 2", "Front Line 3", "Front Line 4" },
{ "CD", "CD 2", "CD 3", "CD 4" },
{ "Aux", "Aux 2", "Aux 3", "Aux 4" },
};
const char *snd_hda_get_input_pin_label(const struct auto_pin_cfg *cfg,
int input)
{
int type = cfg->inputs[input].type;
int idx;
for (idx = 0; idx < 3 && --input >= 0; idx++) {
if (type != cfg->inputs[input].type)
break;
}
return input_labels[type][idx];
}
EXPORT_SYMBOL_HDA(snd_hda_get_input_pin_label);
#ifdef CONFIG_PM
/*

2
sound/pci/hda/hda_local.h
View File

@ -391,6 +391,8 @@ struct auto_pin_cfg_item {
};
struct auto_pin_cfg;
const char *snd_hda_get_input_pin_label(const struct auto_pin_cfg *cfg,
int input);
struct auto_pin_cfg {
int line_outs;