[alsa-devel] Sound issues with ALC269VB-based hardware

[Takashi Iwai]

At Tue, 17 Jul 2012 17:05:36 +0200,
Takashi Iwai wrote:
> 
> At Tue, 17 Jul 2012 15:11:09 +0200,
> Anisse Astier wrote:
> > 
> > Hi,
> > 
> > So I have this hardware that has a few issues (all tested with tiwai/sound for-next)
> > 
> > Audio out/speakers:
> >  - Audio does not work by default. It needs plugging a jack in either headphone or mic.
> >  - disabling "Enable Automute" does make it work. But then it doesn't mute when jack is plugged (obviously).
> > 
> > Mic:
> >  - needs model=laptop-dmic so that working "Internal Mic 1" appears
> >  - "Internal Mic" is useless.
> >  - no jack sense, need to select manually "Internal Mic 1" or "Mic" (external) as Input Source
> > 
> > Please find alsa-info.sh with and without model=laptop-dmic in attachement.
> 
> All sounds like that your BIOS setup is broken.
> 
> You have two internal mics on 0x12 and 0x19.  Judging from your
> comment, the pin 0x12 seems bogus.

BTW, this revealed a bug in the latest code.  Since phantom jack
renaming, the account of ctl name index seems broken.  With this
setup, the driver ended up with the duplicated internal mic phantom
jack controls.

So I applied the patch below now.


Takashi

---
From: Takashi Iwai <tiwai at suse.de>
Subject: [PATCH] ALSA: hda - Fix index number conflicts of phantom jacks

Since some jack controls may be renamed as phantom jacks, the existing
check for index conflicts doesn't work because it simply compares the
name with the last used name, assuming that the controls with the same
name continue.  Thus, it would result in the duplicated controls when
two or more phantom jacks with the very same type exist, and the
driver gives up with an error.

This patch fixes the problem by checking the index number conflicts
more intensively (but dumbly).

Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/pci/hda/hda_jack.c |   45 ++++++++++++++++++++++++++++++---------------
 1 file changed, 30 insertions(+), 15 deletions(-)

diff --git a/sound/pci/hda/hda_jack.c b/sound/pci/hda/hda_jack.c
index 60c976f..aaccc02 100644
--- a/sound/pci/hda/hda_jack.c
+++ b/sound/pci/hda/hda_jack.c
@@ -314,9 +314,28 @@ int snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid,
 }
 EXPORT_SYMBOL_HDA(snd_hda_jack_add_kctl);
 
+/* get the unique index number for the given kctl name */
+static int get_unique_index(struct hda_codec *codec, const char *name, int idx)
+{
+	struct hda_jack_tbl *jack;
+	int i, len = strlen(name);
+ again:
+	jack = codec->jacktbl.list;
+	for (i = 0; i < codec->jacktbl.used; i++, jack++) {
+		/* jack->kctl.id contains "XXX Jack" name string with index */
+		if (jack->kctl &&
+		    !strncmp(name, jack->kctl->id.name, len) &&
+		    !strcmp(" Jack", jack->kctl->id.name + len) &&
+		    jack->kctl->id.index == idx) {
+			idx++;
+			goto again;
+		}
+	}
+	return idx;
+}
+
 static int add_jack_kctl(struct hda_codec *codec, hda_nid_t nid,
-			 const struct auto_pin_cfg *cfg,
-			 char *lastname, int *lastidx)
+			 const struct auto_pin_cfg *cfg)
 {
 	unsigned int def_conf, conn;
 	char name[44];
@@ -336,10 +355,7 @@ static int add_jack_kctl(struct hda_codec *codec, hda_nid_t nid,
 	if (phantom_jack)
 		/* Example final name: "Internal Mic Phantom Jack" */
 		strncat(name, " Phantom", sizeof(name) - strlen(name) - 1);
-	if (!strcmp(name, lastname) && idx == *lastidx)
-		idx++;
-	strncpy(lastname, name, sizeof(name));
-	*lastidx = idx;
+	idx = get_unique_index(codec, name, idx);
 	err = __snd_hda_jack_add_kctl(codec, nid, name, idx, phantom_jack);
 	if (err < 0)
 		return err;
@@ -356,42 +372,41 @@ int snd_hda_jack_add_kctls(struct hda_codec *codec,
 			   const struct auto_pin_cfg *cfg)
 {
 	const hda_nid_t *p;
-	int i, err, lastidx = 0;
-	char lastname[44] = "";
+	int i, err;
 
 	for (i = 0, p = cfg->line_out_pins; i < cfg->line_outs; i++, p++) {
-		err = add_jack_kctl(codec, *p, cfg, lastname, &lastidx);
+		err = add_jack_kctl(codec, *p, cfg);
 		if (err < 0)
 			return err;
 	}
 	for (i = 0, p = cfg->hp_pins; i < cfg->hp_outs; i++, p++) {
 		if (*p == *cfg->line_out_pins) /* might be duplicated */
 			break;
-		err = add_jack_kctl(codec, *p, cfg, lastname, &lastidx);
+		err = add_jack_kctl(codec, *p, cfg);
 		if (err < 0)
 			return err;
 	}
 	for (i = 0, p = cfg->speaker_pins; i < cfg->speaker_outs; i++, p++) {
 		if (*p == *cfg->line_out_pins) /* might be duplicated */
 			break;
-		err = add_jack_kctl(codec, *p, cfg, lastname, &lastidx);
+		err = add_jack_kctl(codec, *p, cfg);
 		if (err < 0)
 			return err;
 	}
 	for (i = 0; i < cfg->num_inputs; i++) {
-		err = add_jack_kctl(codec, cfg->inputs[i].pin, cfg, lastname, &lastidx);
+		err = add_jack_kctl(codec, cfg->inputs[i].pin, cfg);
 		if (err < 0)
 			return err;
 	}
 	for (i = 0, p = cfg->dig_out_pins; i < cfg->dig_outs; i++, p++) {
-		err = add_jack_kctl(codec, *p, cfg, lastname, &lastidx);
+		err = add_jack_kctl(codec, *p, cfg);
 		if (err < 0)
 			return err;
 	}
-	err = add_jack_kctl(codec, cfg->dig_in_pin, cfg, lastname, &lastidx);
+	err = add_jack_kctl(codec, cfg->dig_in_pin, cfg);
 	if (err < 0)
 		return err;
-	err = add_jack_kctl(codec, cfg->mono_out_pin, cfg, lastname, &lastidx);
+	err = add_jack_kctl(codec, cfg->mono_out_pin, cfg);
 	if (err < 0)
 		return err;
 	return 0;
-- 
1.7.10.4