Re: Re: Detection of ALC650 rev.E

[Takashi Iwai <tiwai@suse.de>]

At Wed, 27 Aug 2003 16:08:19 +0100,
James Courtier-Dutton wrote:
> 
> Takashi Iwai wrote:
> > At Tue, 26 Aug 2003 21:56:38 +0100,
> > James Courtier-Dutton wrote:
> > 
> >>>Can you point me at the code you used to detect it. I have some code 
> >>>here that is supposed to detect it, and I just want to compare it with 
> >>>your previous code before I bother sending it as a patch.
> >>>Cheers
> >>>James
> >>>
> >>>
> >>
> >>P.S. The code I have depends on the contents of AC97 register 0x6e.
> >>Source of this code is: -
> >>http://www.realtek.com.tw/downloads/dlac97-2.aspx?lineid=5&famid=12&series=8&Software=True 
> >>
> >>Then download the Linux driver. It is a version of the alsa kernel 
> >>drivers, but with modifications.
> >>
> >>/* reg = contents of AC97 reg 0x6e */
> >>switch(ac97->id & 0xfffffff0) {
> >>
> >><snip>
> >>
> >>case 0x414c4720:        // ALC650
> >>   if (((reg & 0x3f) > 0) && ((reg & 0x3f) < 3))
> >>     ac97->id = 0x414c4720;	// Early version.
> >>   else if (((reg & 0x3f) > 2) && ((reg & 0x3f) < 0x10))
> >>     ac97->id = 0x414c4721;          // D version
> >>   else if ((reg&0x30) == 0x10)
> >>     ac97->id = 0x414c4722;          // E version
> >>   else if ((reg&0x30) == 0x20)
> >>     ac97->id = 0x414c4723;          // F version
> >>   break;
> > 
> > 
> > oh, then it's apparently different.
> > i checked MULTICH register bits but it didn't work anyway.
> > 
> > the above looks better (hey where is such a thing described!).
> > could you send me a patch?
> > 
> > 
> > Takashi
> > 
> > 
> If you go to the realtek site (url above) and download the linux 
> drivers. They are source code, and look like a modified version of 
> alsa-driver.
> I just extracted the info from the realtek source code.

yep, that i know.  i did want to say "where is documetation!" ;)

for the time being, i have no time at all, so it'd be helpful if
anyone can send us a patch...


Takashi


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