ALSA: hda - Fix IDT/STAC multiple HP detection

Due to the recent change for multiple HP as line-out switch, only
one of the multiple headphons (usually a wrong one) is toggled
and the other pins are still disabled.  This causes the silent output
problem on some Dell laptops.

Also, the hp_switch check is screwed up when a line-in or a mic-in
jack exists.  This is added as an additional output, but hp_switch
check doesn't take it into account.

This patch fixes these issues: simplify hp_switch check by using
the NID instead of bool, and clean up / fix the toggle of HP pins
in unsol event handler code.

Reference: Novell bnc#443267
	https://bugzilla.novell.com/show_bug.cgi?id=443267

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

1 files changed, 45 insertions, 14 deletions

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index a51160106df3..4300a679cd86 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -212,7 +212,7 @@ struct sigmatel_spec {
         /* i/o switches */
         unsigned int io_switch[2];
         unsigned int clfe_swap;
-        unsigned int hp_switch;
+        unsigned int hp_switch; /* NID of HP as line-out */
         unsigned int aloopback;
 
         struct hda_pcm pcm_rec[2];      /* PCM information */
@@ -2443,7 +2443,7 @@ static int stac92xx_hp_switch_get(struct snd_kcontrol *kcontrol,
         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
         struct sigmatel_spec *spec = codec->spec;
 
-        ucontrol->value.integer.value[0] = spec->hp_switch;
+        ucontrol->value.integer.value[0] = !!spec->hp_switch;
         return 0;
 }
 
@@ -2452,8 +2452,9 @@ static int stac92xx_hp_switch_put(struct snd_kcontrol *kcontrol,
 {
         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
         struct sigmatel_spec *spec = codec->spec;
-
-        spec->hp_switch = ucontrol->value.integer.value[0];
+        int nid = kcontrol->private_value;
+ 
+        spec->hp_switch = ucontrol->value.integer.value[0] ? nid : 0;
 
         /* check to be sure that the ports are upto date with
          * switch changes
@@ -2862,7 +2863,8 @@ static int stac92xx_auto_create_multi_out_ctls(struct hda_codec *codec,
         if (cfg->hp_outs > 1) {
                 err = stac92xx_add_control(spec,
                         STAC_CTL_WIDGET_HP_SWITCH,
-                        "Headphone as Line Out Switch", 0);
+                        "Headphone as Line Out Switch",
+                        cfg->hp_pins[cfg->hp_outs - 1]);
                 if (err < 0)
                         return err;
         }
@@ -3786,11 +3788,30 @@ static int get_hp_pin_presence(struct hda_codec *codec, hda_nid_t nid)
         return 0;
 }
 
+/* return non-zero if the hp-pin of the given array index isn't
+ * a jack-detection target
+ */
+static int no_hp_sensing(struct sigmatel_spec *spec, int i)
+{
+        struct auto_pin_cfg *cfg = &spec->autocfg;
+
+        /* ignore sensing of shared line and mic jacks */
+        if (spec->line_switch &&
+            cfg->hp_pins[i] == cfg->input_pins[AUTO_PIN_LINE])
+                return 1;
+        if (spec->mic_switch &&
+            cfg->hp_pins[i] == cfg->input_pins[AUTO_PIN_MIC])
+                return 1;
+        /* ignore if the pin is set as line-out */
+        if (cfg->hp_pins[i] == spec->hp_switch)
+                return 1;
+        return 0;
+}
+
 static void stac92xx_hp_detect(struct hda_codec *codec, unsigned int res)
 {
         struct sigmatel_spec *spec = codec->spec;
         struct auto_pin_cfg *cfg = &spec->autocfg;
-        int nid = cfg->hp_pins[cfg->hp_outs - 1];
         int i, presence;
 
         presence = 0;
@@ -3801,15 +3822,16 @@ static void stac92xx_hp_detect(struct hda_codec *codec, unsigned int res)
         for (i = 0; i < cfg->hp_outs; i++) {
                 if (presence)
                         break;
-                if (spec->hp_switch && cfg->hp_pins[i] == nid)
-                        break;
+                if (no_hp_sensing(spec, i))
+                        continue;
                 presence = get_hp_pin_presence(codec, cfg->hp_pins[i]);
         }
 
         if (presence) {
-                /* disable lineouts, enable hp */
+                /* disable lineouts */
                 if (spec->hp_switch)
-                        stac92xx_reset_pinctl(codec, nid, AC_PINCTL_OUT_EN);
+                        stac92xx_reset_pinctl(codec, spec->hp_switch,
+                                              AC_PINCTL_OUT_EN);
                 for (i = 0; i < cfg->line_outs; i++)
                         stac92xx_reset_pinctl(codec, cfg->line_out_pins[i],
                                                 AC_PINCTL_OUT_EN);
@@ -3821,9 +3843,10 @@ static void stac92xx_hp_detect(struct hda_codec *codec, unsigned int res)
                                 spec->gpio_dir, spec->gpio_data &
                                 ~spec->eapd_mask);
         } else {
-                /* enable lineouts, disable hp */
+                /* enable lineouts */
                 if (spec->hp_switch)
-                        stac92xx_set_pinctl(codec, nid, AC_PINCTL_OUT_EN);
+                        stac92xx_set_pinctl(codec, spec->hp_switch,
+                                            AC_PINCTL_OUT_EN);
                 for (i = 0; i < cfg->line_outs; i++)
                         stac92xx_set_pinctl(codec, cfg->line_out_pins[i],
                                                 AC_PINCTL_OUT_EN);
@@ -3835,8 +3858,16 @@ static void stac92xx_hp_detect(struct hda_codec *codec, unsigned int res)
                                 spec->gpio_dir, spec->gpio_data |
                                 spec->eapd_mask);
         }
-        if (!spec->hp_switch && cfg->hp_outs > 1 && presence)
-                stac92xx_set_pinctl(codec, nid, AC_PINCTL_OUT_EN);
+        /* toggle hp outs */
+        for (i = 0; i < cfg->hp_outs; i++) {
+                unsigned int val = AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN;
+                if (no_hp_sensing(spec, i))
+                        continue;
+                if (presence)
+                        stac92xx_set_pinctl(codec, cfg->hp_pins[i], val);
+                else
+                        stac92xx_reset_pinctl(codec, cfg->hp_pins[i], val);
+        }
 } 
 
 static void stac92xx_pin_sense(struct hda_codec *codec, int idx)