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>

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 9e19252..c7e5de6 100644 (file)
--- 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: