[src/trunk]: src/sys/dev/pci Force the codec into a known state before trying...

[mycroft <mycroft%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/3bff2105a4fe
branches:  trunk
changeset: 554987:3bff2105a4fe
user:      mycroft <mycroft%NetBSD.org@localhost>
date:      Thu Nov 06 07:13:33 2003 +0000

description:
Force the codec into a known state before trying to determine its speed.

diffstat:

 sys/dev/pci/auich.c |  12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)

diffs (43 lines):

diff -r b8823b179d27 -r 3bff2105a4fe sys/dev/pci/auich.c
--- a/sys/dev/pci/auich.c       Thu Nov 06 07:09:40 2003 +0000
+++ b/sys/dev/pci/auich.c       Thu Nov 06 07:13:33 2003 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: auich.c,v 1.53 2003/10/31 08:15:53 kent Exp $  */
+/*     $NetBSD: auich.c,v 1.54 2003/11/06 07:13:33 mycroft Exp $       */
 
 /*-
  * Copyright (c) 2000 The NetBSD Foundation, Inc.
@@ -118,7 +118,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: auich.c,v 1.53 2003/10/31 08:15:53 kent Exp $");
+__KERNEL_RCSID(0, "$NetBSD: auich.c,v 1.54 2003/11/06 07:13:33 mycroft Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -1440,6 +1440,7 @@
        uint32_t actual_48k_rate, bytes, ac97rate;
        void *temp_buffer;
        struct auich_dma *p;
+       u_long rate;
 
        /*
         * Grab audio from input for fixed interval and compare how
@@ -1448,9 +1449,16 @@
         * generated.
         */
 
+       /* Force the codec to a known state first. */
+       sc->codec_if->vtbl->set_clock(sc->codec_if, 48000);
+       rate = 48000;
+       sc->codec_if->vtbl->set_rate(sc->codec_if, AC97_REG_PCM_LR_ADC_RATE,
+           &rate);
+
        /* Setup a buffer */
        bytes = 64000;
        temp_buffer = auich_allocm(sc, AUMODE_RECORD, bytes, M_DEVBUF, M_WAITOK);
+
        for (p = sc->sc_dmas; p && KERNADDR(p) != temp_buffer; p = p->next)
                ;
        if (p == NULL) {