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ALSA: hda - Add control to suppress the dynamic pin-power for VIA

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Currently VIA driver controls the power-state of each pin per jack
detection.  But, it means that the power-state mismatch may occur when
the machine doesn't give the proper jack-detection.

For avoiding this problem, a new control element "Dynamic Power-Control"
is provided so that user can turn on/off the pin-power control.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2011-06-17 16:59:21 +02:00
parent 5f4b36d64d
commit 24088a58d6
1 changed files with 59 additions and 1 deletions
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60
sound/pci/hda/patch_via.c
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@ -153,6 +153,7 @@ struct via_spec {
unsigned int hp_independent_mode_index;
unsigned int smart51_enabled;
unsigned int dmic_enabled;
unsigned int no_pin_power_ctl;
enum VIA_HDA_CODEC codec_type;
/* work to check hp jack state */
@ -605,8 +606,12 @@ static void set_pin_power_state(struct hda_codec *codec, hda_nid_t nid,
unsigned no_presence = (def_conf & AC_DEFCFG_MISC)
>> AC_DEFCFG_MISC_SHIFT
& AC_DEFCFG_MISC_NO_PRESENCE; /* do not support pin sense */
unsigned present = snd_hda_jack_detect(codec, nid);
struct via_spec *spec = codec->spec;
unsigned present = 0;
no_presence |= spec->no_pin_power_ctl;
if (!no_presence)
present = snd_hda_jack_detect(codec, nid);
if ((spec->smart51_enabled && is_smart51_pins(spec, nid))
|| ((no_presence || present)
&& get_defcfg_connect(def_conf) != AC_JACK_PORT_NONE)) {
@ -618,6 +623,55 @@ static void set_pin_power_state(struct hda_codec *codec, hda_nid_t nid,
snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE, parm);
}
static int via_pin_power_ctl_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
static const char * const texts[] = {
"Disabled", "Enabled"
};
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
uinfo->value.enumerated.items = 2;
if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
strcpy(uinfo->value.enumerated.name,
texts[uinfo->value.enumerated.item]);
return 0;
}
static int via_pin_power_ctl_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
struct via_spec *spec = codec->spec;
ucontrol->value.enumerated.item[0] = !spec->no_pin_power_ctl;
return 0;
}
static int via_pin_power_ctl_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
struct via_spec *spec = codec->spec;
unsigned int val = !ucontrol->value.enumerated.item[0];
if (val == spec->no_pin_power_ctl)
return 0;
spec->no_pin_power_ctl = val;
set_widgets_power_state(codec);
return 1;
}
static const struct snd_kcontrol_new via_pin_power_ctl_enum = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Dynamic Power-Control",
.info = via_pin_power_ctl_info,
.get = via_pin_power_ctl_get,
.put = via_pin_power_ctl_put,
};
/*
* input MUX handling
*/
@ -1480,6 +1534,10 @@ static int via_build_controls(struct hda_codec *codec)
const struct snd_kcontrol_new *knew;
int err, i;
if (spec->set_widgets_power_state)
if (!via_clone_control(spec, &via_pin_power_ctl_enum))
return -ENOMEM;
for (i = 0; i < spec->num_mixers; i++) {
err = snd_hda_add_new_ctls(codec, spec->mixers[i]);
if (err < 0)