On Tue, 12 Feb 2002, Takashi Iwai wrote:
> At Mon, 11 Feb 2002 14:15:59 +0000,
> Christof Damian wrote:
> >
> > Hello,
> > I already send the attached email to the alsa-user list, but haven't
> > got any response.
> >
> > After looking through ice1712.c I now realize that the DSP24 Value
> > might never have been tried with this driver. As it only mentions the
> > STDSP24, which is similar but not the same.
> >
> > Is this correct, or has anyone got this working ?
>
> The patch is apprently not enough.
> We need additional codes in snd_ice1712_ak4524_write() to send signals
> to ak4524 correctly.
> Most likely there are gpio bits for codec selection, data and clock
> lines. Looking at the photo of the card, the DSP24 Value looks like
> having fairly different usage of gpio. If we really have no info
> about this card, we need to guess from other cards how the connections
> are.. Well, it's not a good dream..
The patch is wrong. There is PIC accessing and initializating AK4524
codecs. I'm not sure, if we can drive analog codecs directly, because I
have no further information about DSP24 Value.
> > I am currently fiddling with the driver and have done this:
> >
> > --- pci/ice1712.c 9 Feb 2002 18:54:38 -0000 1.9
> > +++ pci/ice1712.c 11 Feb 2002 14:11:25 -0000
> > @@ -3750,6 +3750,10 @@
> >
> > /* determine I2C, DACs and ADCs */
> > switch (ice->eeprom.subvendor) {
> > + case ICE1712_SUBDEVICE_STDSP24:
> > + has_i2c = 1;
> > + ice->num_adcs = ice->num_dacs = ice->num_total_dacs =
> > 2;
> > + break;
> > case ICE1712_SUBDEVICE_AUDIOPHILE:
> > ice->ak4528 = 1;
> > /* follow thru */
> > @@ -3954,6 +3958,7 @@
> > case ICE1712_SUBDEVICE_DELTA66:
> > case ICE1712_SUBDEVICE_EWS88MT:
> > case ICE1712_SUBDEVICE_DMX6FIRE:
> > + case ICE1712_SUBDEVICE_STDSP24:
> > for (idx = 0; idx < ice->num_dacs; ++idx) {
> > snd_kcontrol_t ctl;
> > memset(&ctl, 0, sizeof(ctl));
> >
> > which gives me the IPGA scontrol in amixer and the "H/W Out 1+2" and the
> > DAC 0+1 and ADC 0+1 levels in "Analog Volume" in envy24control.
> >
> > not that i know what i am doing as i don't have any docs for this
> > card. I also don't know how to decide wheter the card is a DSP24 Value
> > or STDSP24 in ice1712.c
>
> Since your card was recognized as STDSP24, it means that both cards
> have the same sub vendor/device id. Thus it's difficult to guess
> which chip is. Perhaps trying to detect ak4524 at first, then one
> can recognize it as DSP24 Value or not.
I'm also not sure about differences between models, because the full
version expects some additional I/O boxes, but there is no way to detect
which (and if) a box is connected. The DSP24 Value version looks like a
card with simplified build-in I/O box.
I think that I have a contact to a guy from Taiwan (Hoontech) from Claus
Riethmueller, so I asked him for more information about differences
between DSP24 and DSP24 Value, but he has not replied.
Jaroslav
-----
Jaroslav Kysela <[EMAIL PROTECTED]>
SuSE Linux http://www.suse.com
ALSA Project http://www.alsa-project.org
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