Hi Takashi,
On Thu, Sep 07, 2006 at 04:52:58PM +0200, Takashi Iwai wrote:
> I confirmed that the same behavior appears on AK4524.
> So, it makes much more sense to combine ADC and IPGA controls to a
> single control.
Great, this should simplify things considerably.
> The patch below is the final version I have on my local tree.
> Please check whether it works for you.
It works nice. I now get
Simple mixer control 'PCM',0
Capabilities: pvolume cvolume cswitch cswitch-joined
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 127 Capture 0 - 151
Front Left: Playback 127 [100%] Capture 0 [0%] [on]
Front Right: Playback 127 [100%] Capture 151 [100%] [on]
One remaining problem: Unfortunatly left and right volume are
exchanged when recording. When I record with the setting above (using
arecord) and then replay the recording with aplay all the sound comes
from the left (!) speaker.
I reactivated my register write spying patch and got
reg4 <- 00
reg5 <- 98
for the setting above. So the actual register writes seem to be ok.
It seems that register 5 corresponds to the left channel (and 4 to the
right channel) on the revolution 5.1 card.
Otherwise everything seems fine.
Minor nit: the code (from ak4xxx-adda.c)
/* register 4 & 5 */
if (ak->type == SND_AK5365)
knew.private_value =
AK_COMPOSE(idx/2, (idx%2) + 4, 0, 151) |
AK_VOL_CVT | AK_IPGA;
else
knew.private_value =
AK_COMPOSE(idx/2, (idx%2) + 4, 0, 163) |
AK_VOL_CVT | AK_IPGA;
looks unnecessarily complicated. The AK5365 has just two channels, so
shouldn't it be just as follows?
/* register 4 & 5 */
if (ak->type == SND_AK5365)
knew.private_value =
AK_COMPOSE(0, idx + 4, 0, 151) |
AK_VOL_CVT | AK_IPGA;
else
knew.private_value =
AK_COMPOSE(idx/2, (idx%2) + 4, 0, 163) |
AK_VOL_CVT | AK_IPGA;
> FYI, the second patch is for envy24control to make it work correctly
> after changing ADC ranges.
I only tried envy24control a long time ago. Then it didn't recognise my
card and I ignored it afterwards. Is it useful? Should I give this a try?
Many thanks,
Jochen
--
http://seehuhn.de/
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