[patch 32/33] ALSA: hda - Fix wrong volumes in AD1988 auto-probe mode

Greg KH
2008-08-04T20:33:40Z

[-- Attachment #1: alsa-hda-fix-wrong-volumes-in-ad1988-auto-probe-mode.patch --]
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2.6.25-stable review patch. If anyone has any objections, please let us
know.

------------------

From: Takashi Iwai <tiwai@suse.de>

commit 43785eaeb1cfb8aed3cf8027f298b242f88fdc45 upstream

Don't create mixer volume elements for Headphone and Speaker if they
use the same DAC as normal line-outs on AD1988. Otherwise the amp
value gets screwed up, e.g.
https://bugzilla.novell.com/show_bug.cgi?id=398255

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
sound/pci/hda/patch_analog.c | 32 +++++++++++++++++++++-----------
1 file changed, 21 insertions(+), 11 deletions(-)

--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -2558,7 +2558,7 @@ static int ad1988_auto_create_extra_out(
{
struct ad198x_spec *spec = codec->spec;
hda_nid_t nid;
- int idx, err;
+ int i, idx, err;
char name[32];

if (! pin)
@@ -2566,16 +2566,26 @@ static int ad1988_auto_create_extra_out(

idx = ad1988_pin_idx(pin);
nid = ad1988_idx_to_dac(codec, idx);
- /* specify the DAC as the extra output */
- if (! spec->multiout.hp_nid)
- spec->multiout.hp_nid = nid;
- else
- spec->multiout.extra_out_nid[0] = nid;
- /* control HP volume/switch on the output mixer amp */
- sprintf(name, "%s Playback Volume", pfx);
- if ((err = add_control(spec, AD_CTL_WIDGET_VOL, name,
- HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_OUTPUT))) < 0)
- return err;
+ /* check whether the corresponding DAC was already taken */
+ for (i = 0; i < spec->autocfg.line_outs; i++) {
+ hda_nid_t pin = spec->autocfg.line_out_pins[i];
+ hda_nid_t dac = ad1988_idx_to_dac(codec, ad1988_pin_idx(pin));
+ if (dac == nid)
+ break;
+ }
+ if (i >= spec->autocfg.line_outs) {
+ /* specify the DAC as the extra output */
+ if (!spec->multiout.hp_nid)
+ spec->multiout.hp_nid = nid;
+ else
+ spec->multiout.extra_out_nid[0] = nid;
+ /* control HP volume/switch on the output mixer amp */
+ sprintf(name, "%s Playback Volume", pfx);
+ err = add_control(spec, AD_CTL_WIDGET_VOL, name,
+ HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_OUTPUT));
+ if (err < 0)
+ return err;
+ }
nid = ad1988_mixer_nids[idx];
sprintf(name, "%s Playback Switch", pfx);
if ((err = add_control(spec, AD_CTL_BIND_MUTE, name,

--