As promised: Soft volume mixer controller (doesn't work for me)

[Ariff Abdullah]

On Tue, 13 Sep 2005 22:34:23 +0200
Michael Nottebrock <lofi at freebsd.org> wrote:
> On Tuesday, 13. September 2005 01:58, Ariff Abdullah wrote:
> 
> > Note on giving feedback: Please include (before / after applying
> > patch):-
> 
> Before: PCM volume control is binary - 0 is silent, everything else is
> full  volume.
> 
> pcm0: <Intel ICH2 (82801BA)> port 0xe800-0xe83f,0xec00-0xecff irq 17
> at device  31.5 on pci0
> pcm0: <C-Media Electronics CMI9739 AC97 Codec>
> 
> Mixer vol      is currently set to 100:100
> Mixer pcm      is currently set to 100:100
> Mixer speaker  is currently set to   0:0
> Mixer line     is currently set to   0:0
> Mixer mic      is currently set to   0:0
> Mixer cd       is currently set to   0:0
> Mixer rec      is currently set to  11:11
> Mixer ogain    is currently set to  50:50
> Mixer line1    is currently set to   0:0
> Mixer phin     is currently set to   0:0
> Mixer phout    is currently set to   0:0
> Mixer video    is currently set to   0:0
> Recording source: line
> 
> pcm0 at pci0:31:5: class=0x040100 card=0x49611849 chip=0x24458086
> rev=0x05  hdr=0x00
>     vendor   = 'Intel Corporation'
>     device   = '82801BA/BAM (ICH2/ICH2-M) AC'97 Audio Controller'
>     class    = multimedia
>     subclass = audio
> 
> After: Complete silence, regardless of mixer setting.
> 
> pcm0: <Intel ICH2 (82801BA)> port 0xe800-0xe83f,0xec00-0xecff irq 17
> at device  31.5 on pci0
> pcm0: <C-Media Electronics CMI9739 AC97 Codec>
> 
> Mixer vol      is currently set to 100:100
> Mixer pcm      is currently set to 100:100
> Mixer speaker  is currently set to   0:0
> Mixer line     is currently set to   0:0
> Mixer mic      is currently set to   0:0
> Mixer cd       is currently set to   0:0
> Mixer rec      is currently set to  11:11
> Mixer ogain    is currently set to  50:50
> Mixer line1    is currently set to   0:0
> Mixer phin     is currently set to   0:0
> Mixer phout    is currently set to   0:0
> Mixer video    is currently set to   0:0
> 
> pcm0 at pci0:31:5: class=0x040100 card=0x49611849 chip=0x24458086
> rev=0x05  hdr=0x00
>     vendor   = 'Intel Corporation'
>     device   = '82801BA/BAM (ICH2/ICH2-M) AC'97 Audio Controller'
>     class    = multimedia
>     subclass = audio
> 
>

(sorry, I need uname -a as well..)

How about applying this one:

--- ac97.c.diff BEGIN ---
--- sys/dev/sound/pcm/ac97.c.orig	Wed Sep 14 04:54:36 2005
+++ sys/dev/sound/pcm/ac97.c	Wed Sep 14 05:00:10 2005
@@ -556,17 +556,25 @@
 #endif
 	switch (codec->id) {
 		case 0x434d4941:	/* CMI9738 */
+			ac97_wrcd(codec, AC97_MIX_PCM, 0x8000);
+			break;
 		case 0x434d4961:	/* CMI9739 */
+			ac97_wrcd(codec, AC97_MIX_MASTER, 0x8000);
+			ac97_wrcd(codec, AC97_MIX_PCM, 0x8000);
+			break;
 		case 0x434d4983:	/* CMI9761 */
-			bzero(&codec->mix[SOUND_MIXER_PCM],
-				sizeof(codec->mix[SOUND_MIXER_PCM]));
-			codec->flags |= AC97_F_SOFTVOL;
-			if (d)
-				d->flags |= SD_F_SOFTVOL;
+			ac97_wrcd(codec, AC97_MIX_MASTER, 0x8808);
+			ac97_wrcd(codec, AC97_MIX_PCM, 0x8808);
 			break;
 		default:
+			return;
 			break;
 	}
+	bzero(&codec->mix[SOUND_MIXER_PCM],
+		sizeof(codec->mix[SOUND_MIXER_PCM]));
+	codec->flags |= AC97_F_SOFTVOL;
+	if (d)
+		d->flags |= SD_F_SOFTVOL;
 }
 
 static const char*

--- ac97.c.diff END ---


--

Ariff Abdullah
MyBSD

http://www.MyBSD.org.my (IPv6/IPv4)
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