Date: Tue, 11 Jun 2002 07:10:04 -0700 (PDT) From: Colin Perkins <csp@isi.edu> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/39146: sound fails to load on some Thinkpad models Message-ID: <200206111410.g5BEA4626624@freefall.freebsd.org>
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The following reply was made to PR kern/39146; it has been noted by GNATS.
From: Colin Perkins <csp@isi.edu>
To: freebsd-gnats-submit@FreeBSD.org
Cc: daniel@pelleg.org
Subject: Re: kern/39146: sound fails to load on some Thinkpad models
Date: Tue, 11 Jun 2002 10:02:50 -0400
Try the following (from Orion Hodson <hodson@freebsd.org>, I just tweaked
it to work with reinit_mixer too)
Colin
Index: ac97.c
===================================================================
RCS file: /home/ncvs/src/sys/dev/sound/pcm/ac97.c,v
retrieving revision 1.5.2.9
diff -u -r1.5.2.9 ac97.c
--- ac97.c 2002/04/22 15:49:35 1.5.2.9
+++ ac97.c 2002/06/11 13:58:31
@@ -373,7 +373,18 @@
wrcd(codec, AC97_REG_POWER, (codec->flags & AC97_F_EAPD_INV)? 0x8000 : 0x0000);
wrcd(codec, AC97_REG_RESET, 0);
- DELAY(100000);
+ for(i = 0; i < 500; i++) {
+ static u_int32_t os = 0;
+ u_int32_t s = rdcd(codec, AC97_REG_POWER) & AC97_POWER_STATUS;
+ if (s == AC97_POWER_STATUS)
+ break;
+ if (s != os)
+ device_printf(codec->dev, "status 0x%02x %d\n", s, i);
+ os = s;
+ DELAY(10000);
+ }
+ device_printf(codec->dev, "Ready at %d\n", i);
+
wrcd(codec, AC97_REG_POWER, (codec->flags & AC97_F_EAPD_INV)? 0x8000 : 0x0000);
i = rdcd(codec, AC97_REG_RESET);
@@ -468,7 +479,17 @@
wrcd(codec, AC97_REG_POWER, (codec->flags & AC97_F_EAPD_INV)? 0x8000 : 0x0000);
wrcd(codec, AC97_REG_RESET, 0);
- DELAY(100000);
+ for (i = 0; i < 500; i++) {
+ static u_int32_t os = 0;
+ u_int32_t s = rdcd(codec, AC97_REG_POWER) & AC97_POWER_STATUS;
+ if (s == AC97_POWER_STATUS)
+ break;
+ if (s != os)
+ device_printf(codec->dev, "status 0x%02x %d\n", s, i);
+ os = s;
+ DELAY(10000);
+ }
+ device_printf(codec->dev, "Ready at %d\n", i);
wrcd(codec, AC97_REG_POWER, (codec->flags & AC97_F_EAPD_INV)? 0x8000 : 0x0000);
i = rdcd(codec, AC97_REG_RESET);
Index: ac97.h
===================================================================
RCS file: /home/ncvs/src/sys/dev/sound/pcm/ac97.h,v
retrieving revision 1.3.2.7
diff -u -r1.3.2.7 ac97.h
--- ac97.h 2002/04/22 15:49:35 1.3.2.7
+++ ac97.h 2002/06/11 13:58:54
@@ -56,6 +56,12 @@
#define AC97_REG_GEN 0x20
#define AC97_REG_3D 0x22
#define AC97_REG_POWER 0x26
+#define AC97_POWER_ADC (1 << 0)
+#define AC97_POWER_DAC (1 << 1)
+#define AC97_POWER_ANL (1 << 2)
+#define AC97_POWER_REF (1 << 3)
+#define AC97_POWER_STATUS (AC97_POWER_ADC | AC97_POWER_DAC | \
+ AC97_POWER_REF | AC97_POWER_ANL )
#define AC97_REGEXT_ID 0x28
#define AC97_EXTCAP_VRA (1 << 0)
#define AC97_EXTCAP_DRA (1 << 1)
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