ALSA: hda - Add line-out jack detection on IDT/STAC codecs

Add the automatic mute of speakers via line-out jack plugging on
STAC/IDT codecs.  The feature is enabled when the HP detect is present.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 56 insertions, 14 deletions

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 9e192529e807..c7e5de6e394e 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -40,6 +40,7 @@ enum {
         STAC_INSERT_EVENT,
         STAC_PWR_EVENT,
         STAC_HP_EVENT,
+        STAC_LO_EVENT,
         STAC_MIC_EVENT,
 };
 
@@ -4345,6 +4346,14 @@ static int stac92xx_init(struct hda_codec *codec)
                         hda_nid_t nid = cfg->hp_pins[i];
                         enable_pin_detect(codec, nid, STAC_HP_EVENT);
                 }
+                if (cfg->line_out_type == AUTO_PIN_LINE_OUT) {
+                        /* enable pin-detect for line-outs as well */
+                        for (i = 0; i < cfg->hp_outs; i++) {
+                                hda_nid_t nid = cfg->hp_pins[i];
+                                enable_pin_detect(codec, nid, STAC_LO_EVENT);
+                        }
+                }
+
                 /* force to enable the first line-out; the others are set up
                  * in unsol_event
                  */
@@ -4543,6 +4552,48 @@ static int get_pin_presence(struct hda_codec *codec, hda_nid_t nid)
         return 0;
 }
 
+static void stac92xx_line_out_detect(struct hda_codec *codec,
+                                     int presence)
+{
+        struct sigmatel_spec *spec = codec->spec;
+        struct auto_pin_cfg *cfg = &spec->autocfg;
+        int i;
+
+        for (i = 0; i < cfg->line_outs; i++) {
+                if (presence)
+                        break;
+                presence = get_pin_presence(codec, cfg->line_out_pins[i]);
+                if (presence) {
+                        unsigned int pinctl;
+                        pinctl = snd_hda_codec_read(codec,
+                                                    cfg->line_out_pins[i], 0,
+                                            AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
+                        if (pinctl & AC_PINCTL_IN_EN)
+                                presence = 0; /* mic- or line-input */
+                }
+        }
+
+        if (presence) {
+                /* disable speakers */
+                for (i = 0; i < cfg->speaker_outs; i++)
+                        stac92xx_reset_pinctl(codec, cfg->speaker_pins[i],
+                                                AC_PINCTL_OUT_EN);
+                if (spec->eapd_mask && spec->eapd_switch)
+                        stac_gpio_set(codec, spec->gpio_mask,
+                                spec->gpio_dir, spec->gpio_data &
+                                ~spec->eapd_mask);
+        } else {
+                /* enable speakers */
+                for (i = 0; i < cfg->speaker_outs; i++)
+                        stac92xx_set_pinctl(codec, cfg->speaker_pins[i],
+                                                AC_PINCTL_OUT_EN);
+                if (spec->eapd_mask && spec->eapd_switch)
+                        stac_gpio_set(codec, spec->gpio_mask,
+                                spec->gpio_dir, spec->gpio_data |
+                                spec->eapd_mask);
+        }
+} 
+
 /* return non-zero if the hp-pin of the given array index isn't
  * a jack-detection target
  */
@@ -4595,13 +4646,6 @@ static void stac92xx_hp_detect(struct hda_codec *codec)
                 for (i = 0; i < cfg->line_outs; i++)
                         stac92xx_reset_pinctl(codec, cfg->line_out_pins[i],
                                                 AC_PINCTL_OUT_EN);
-                for (i = 0; i < cfg->speaker_outs; i++)
-                        stac92xx_reset_pinctl(codec, cfg->speaker_pins[i],
-                                                AC_PINCTL_OUT_EN);
-                if (spec->eapd_mask && spec->eapd_switch)
-                        stac_gpio_set(codec, spec->gpio_mask,
-                                spec->gpio_dir, spec->gpio_data &
-                                ~spec->eapd_mask);
         } else {
                 /* enable lineouts */
                 if (spec->hp_switch)
@@ -4610,14 +4654,8 @@ static void stac92xx_hp_detect(struct hda_codec *codec)
                 for (i = 0; i < cfg->line_outs; i++)
                         stac92xx_set_pinctl(codec, cfg->line_out_pins[i],
                                                 AC_PINCTL_OUT_EN);
-                for (i = 0; i < cfg->speaker_outs; i++)
-                        stac92xx_set_pinctl(codec, cfg->speaker_pins[i],
-                                                AC_PINCTL_OUT_EN);
-                if (spec->eapd_mask && spec->eapd_switch)
-                        stac_gpio_set(codec, spec->gpio_mask,
-                                spec->gpio_dir, spec->gpio_data |
-                                spec->eapd_mask);
         }
+        stac92xx_line_out_detect(codec, presence);
         /* toggle hp outs */
         for (i = 0; i < cfg->hp_outs; i++) {
                 unsigned int val = AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN;
@@ -4744,6 +4782,9 @@ static void stac92xx_unsol_event(struct hda_codec *codec, unsigned int res)
         case STAC_HP_EVENT:
                 stac92xx_hp_detect(codec);
                 break;
+        case STAC_LO_EVENT:
+                stac92xx_line_out_detect(codec, 0);
+                break;
         case STAC_MIC_EVENT:
                 stac92xx_mic_detect(codec);
                 break;
@@ -4751,6 +4792,7 @@ static void stac92xx_unsol_event(struct hda_codec *codec, unsigned int res)
 
         switch (event->type) {
         case STAC_HP_EVENT:
+        case STAC_LO_EVENT:
         case STAC_MIC_EVENT:
         case STAC_INSERT_EVENT:
         case STAC_PWR_EVENT: