Re: Re: Detection of ALC650 rev.E

[Takashi Iwai <tiwai@suse.de>]

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


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