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intel_sst: Headphone Automute support 

When detected a Jack event, Audio sound routes between internal speaker
and headphone/headset automatically.

Signed-off-by: xingchao <xingchao.wang@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
xingchao 2011-05-03 17:34:13 +01:00 committed by Greg Kroah-Hartman
parent 26d3b2d973
commit 59bd2abe07
1 changed files with 15 additions and 0 deletions
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15
drivers/staging/intel_sst/intelmid_v2_control.c
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@ -995,6 +995,19 @@ static int nc_get_vol(int dev_id, int *value)
return retval;
}
static void hp_automute(enum snd_jack_types type, int present)
{
u8 in = DMIC;
u8 out = INTERNAL_SPKR;
if (present) {
if (type == SND_JACK_HEADSET)
in = HS_MIC;
out = STEREO_HEADPHONE;
}
nc_set_selected_input_dev(in);
nc_set_selected_output_dev(out);
}
static void nc_pmic_irq_cb(void *cb_data, u8 intsts)
{
u8 value = 0;
@ -1015,6 +1028,7 @@ static void nc_pmic_irq_cb(void *cb_data, u8 intsts)
present = (value == 0x1) ? 1 : 0;
jack_event_flag = 1;
mjack->jack.type = SND_JACK_HEADSET;
hp_automute(SND_JACK_HEADSET, present);
}
if (intsts & 0x2) {
@ -1023,6 +1037,7 @@ static void nc_pmic_irq_cb(void *cb_data, u8 intsts)
present = (value == 0x2) ? 1 : 0;
jack_event_flag = 1;
mjack->jack.type = SND_JACK_HEADPHONE;
hp_automute(SND_JACK_HEADPHONE, present);
}
if (intsts & 0x4) {