[Meego-kernel] [PATCH 3/4] sst: automute internal speaker when mic is inserted

[Lu Guanqun]

From: Wang Xingchao <xingchao.wang at intel.com>

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

Signed-off-by: xingchao <xingchao.wang at intel.com>
Reviewed-by: Wu Fengguang <fengguang.wu at intel.com>
---
 drivers/staging/intel_sst/intelmid_v2_control.c |   17 +++++++++++++++++
 1 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/drivers/staging/intel_sst/intelmid_v2_control.c b/drivers/staging/intel_sst/intelmid_v2_control.c
index b7be5a2..61a9dab 100644
--- a/drivers/staging/intel_sst/intelmid_v2_control.c
+++ b/drivers/staging/intel_sst/intelmid_v2_control.c
@@ -1012,6 +1012,21 @@ 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_MICROPHONE)
+			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;
@@ -1032,6 +1047,7 @@ 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) {
@@ -1040,6 +1056,7 @@ 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) {
-- 
1.7.2.3