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| author | Timofei V. Bondarenko <tim@ipi.ac.ru> | 2006-12-20 19:20:07 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2007-01-09 09:06:18 +0100 |
| commit | 8c670714223d58086695d007b76b3e3ead54e4f5 (patch) | |
| tree | d2a1010beb44676e193db7718ac3fbd08d1b7b21 /sound | |
| parent | 6afeb11de5b28e47adea1459c35e598bb98424d6 (diff) | |
| download | linux-8c670714223d58086695d007b76b3e3ead54e4f5.tar.gz linux-8c670714223d58086695d007b76b3e3ead54e4f5.tar.bz2 linux-8c670714223d58086695d007b76b3e3ead54e4f5.zip | |
[ALSA] _snd_cmipci_uswitch_put doesn't set zero flags
Playing with spdif output on cmipci i've noticed the SPDO5V option does
not change appropriate bits the register.
The _snd_cmipci_uswitch_put checks the change in flags in wrong way.
If 'active' state of an option corresponds to a _zero_ bits in a hw
register then function fails. The SPDO5V is the sample.
In the most cases 'active' state of option is set through an non-zerio
bits in a register. This case works fine.
The fix attached.
Unfortunately i was unable to change spdif output voltage anyway.
Although the register changes right at least.
From: Timofei V. Bondarenko <tim@ipi.ac.ru>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/cmipci.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c index 71c58df4af28..70face7e1048 100644 --- a/sound/pci/cmipci.c +++ b/sound/pci/cmipci.c @@ -2198,7 +2198,8 @@ static int _snd_cmipci_uswitch_put(struct snd_kcontrol *kcontrol, val = inb(cm->iobase + args->reg); else val = snd_cmipci_read(cm, args->reg); - change = (val & args->mask) != (ucontrol->value.integer.value[0] ? args->mask : 0); + change = (val & args->mask) != (ucontrol->value.integer.value[0] ? + args->mask_on : (args->mask & ~args->mask_on)); if (change) { val &= ~args->mask; if (ucontrol->value.integer.value[0]) |