Re: Intel8x0 still broken in 2.6.9-ac16

[Takashi Iwai <tiwai@suse.de>]

[-- Attachment #1: Type: text/plain, Size: 1074 bytes --]

At Fri, 17 Dec 2004 18:38:54 +0100,
David Gómez wrote:
> 
> Hi Takashi ;)
> 
> On Fri, 17 Dec 2004 16:39:28 +0100, Takashi Iwai <tiwai@suse.de> wrote:
> > > codec_write 0: semaphore is not ready for register 0x2
> > > codec_write 0: semaphore is not ready for register 0x2
> > > codec_write 0: semaphore is not ready for register 0x2
> > 
> > This implies that wrong SDI's are assigned to the codec or GLOB_STA
> > register shows something different.
> > 
> > Please attach /proc/asound/card0/intel8x0 and
> 
> [huma@miller] [~] % cat /proc/asound/card0/intel8x0 
> Intel8x0
> 
> Global control        : 0x00000000
> Global status         : 0x08700000
> SDM                   : 0x00000008
> AC'97 codecs ready    : none
> AC'97 codecs SDIN     : 0 0 0

The GLOB_STA register shows a weird value.
That's why codecs can't get probed.

Could you try the attached patch and check the kernel messages?

> 
> > /proc/asound/card0/codec97#0/* files for debugging.
> 
> 0-0/0: Conexant id 30

Ok, that's only a garbage.  Forget it...


Takashi

[-- Attachment #2: Type: text/plain, Size: 1122 bytes --]

Index: alsa-kernel/pci/intel8x0.c
===================================================================
RCS file: /suse/tiwai/cvs/alsa/alsa-kernel/pci/intel8x0.c,v
retrieving revision 1.179
diff -u -r1.179 intel8x0.c
--- alsa-kernel/pci/intel8x0.c	15 Dec 2004 15:23:13 -0000	1.179
+++ alsa-kernel/pci/intel8x0.c	20 Dec 2004 18:13:06 -0000
@@ -1952,6 +1952,7 @@
 				codecs++;
 			if (glob_sta & ICH_TCR)
 				codecs++;
+			printk(KERN_DEBUG "XXX codec probing: codecs = %d, glob_sta = 0x%08x\n", codecs, glob_sta);
 			chip->in_sdin_init = 1;
 			for (i = 0; i < codecs; i++) {
 				snd_intel8x0_codec_read_test(chip, i);
@@ -2142,6 +2143,7 @@
 			snd_printk(KERN_ERR "codec_ready: codec is not ready [0x%x]\n", igetdword(chip, ICHREG(GLOB_STA)));
 			return -EIO;
 		}
+		printk(KERN_DEBUG "XXX GLOB_STA reads 0x%08x\n", status);
 
 		if (chip->device_type == DEVICE_INTEL_ICH4)
 			/* ICH4 can have three codecs */
@@ -2156,6 +2158,7 @@
 			do_delay(chip);
 			status |= igetdword(chip, ICHREG(GLOB_STA)) & nstatus;
 		}
+		printk(KERN_DEBUG "XXX GLOB_STA reads end: 0x%08x\n", status);
 
 	} else {
 		/* resume phase */