Hi,
on my Epox 8K3A, there is a VT8233 together with an ALC201A Codec,
which does not work, as far I could figure out.
On Realtek HP I found as a Linux driver for that codec a modified
version of alsa-driver-0.5.11.
<-- snip from a97_codec.c -->
//====== added by hou 01/15/02
// { 0x414c4710, "ALC200/200P" },
{ 0x414c4320, "ALC100/100P" },
{ 0x414c4710, "ALC200" },
{ 0x414c4711, "ALC201" },
{ 0x414c4712, "ALC201A" },
{ 0x414c4713, "ALC201-G" },
{ 0x414c4720, "ALC650" },
{ 0x414c4721, "ALC650-D" },
{ 0x414c4730, "ALC101" },
{ 0x414c4740, "ALC202A-A" },
{ 0x414c4741, "ALC202-B" },
{ 0x414c4742, "ALC202A-C" },
{ 0x414c4750, "ALC250" },
and later on...
//==== added by hou 01/15/02
reg = snd_ac97_read(ac97, AC97_SIGMATEL_DAC2INVERT);
// printk("id 0x%8x, ext 0x%x.\n", ac97->id, reg);
switch(ac97->id & 0xfffffff0) {
case 0x414c4320:
case 0x414c4730:
case 0x414c4750:
ac97->id = ac97->id & 0xfffffff0;
break;
case 0x414c4710:
if ((reg & 0x0f) == 0)
ac97->id = 0x414c4710;
else if ((reg & 0x0ff) == 0x11)
ac97->id = 0x414c4711;
else if ((reg & 0x0ff) == 0x13)
ac97->id = 0x414c4712;
else if ((reg & 0x0ff) == 0x16)
ac97->id = 0x414c4713;
else
ac97->id = 0x414c4710;
break;
case 0x414c4720:
if (((reg & 0x0f) > 0) && ((reg & 0x0f) < 4))
ac97->id = 0x414c4720;
else if (((reg & 0x0f) > 3) && ((reg & 0x0f) < 8))
ac97->id = 0x414c4721;
As there are now these "bitmasks" in new ac97_codec.c, these chips can
be identified (as a start)...
Question: Is anybody working on that ALC stuff?
Regards,
Sassi
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