Re: [Alsa-devel] Re: Detection of ALC650 rev.E

[James Courtier-Dutton]

James Courtier-Dutton wrote:
Takashi Iwai wrote:

At Tue, 26 Aug 2003 19:00:38 +0100,
James Courtier-Dutton wrote:
Takashi Iwai wrote:

At Wed, 21 May 2003 08:04:44 +0200,
p z oooo wrote:

Hi,

I tested code and it doesn't work :-(.
When I deleted code to detect ALC650 rev.E, it worked perfect. :-)
May be:
1) MSI uses ALC650 rev.E and stil uses gpio0 to switch mic power 
on/off
2) detection code for ALC650 rev.E is wrong


most likely the latter...
perhaps chaging GPIO0 won't affect the behavior of rev.E.
i'll remove it.
thanks,

Takashi


How is the ALC650 rev.E detected? I could not see anything in the 
alc650 pdf specifications to indicate how to detect the ALC650 rev.E 
or not.


no, the detection code was removed (as written above), because it
simply didn't work as expected :)
please let me know if you have any idea how to detect it.
Takashi


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;


-------------------------------------------------------
This SF.net email is sponsored by: VM Ware
With VMware you can run multiple operating systems on a single machine.
WITHOUT REBOOTING! Mix Linux / Windows / Novell virtual machines
at the same time. Free trial click here:http://www.vmware.com/wl/offer/358/0
_______________________________________________
Alsa-devel mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/alsa-devel