ac97_patch.c revision 119208
1/* 2 * Copyright 2002 FreeBSD, Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 */ 25 26#include <dev/sound/pcm/sound.h> 27#include <dev/sound/pcm/ac97.h> 28#include <dev/sound/pcm/ac97_patch.h> 29 30SND_DECLARE_FILE("$FreeBSD: head/sys/dev/sound/pcm/ac97_patch.c 119208 2003-08-21 15:44:55Z orion $"); 31 32void ad1886_patch(struct ac97_info* codec) 33{ 34#define AC97_AD_JACK_SPDIF 0x72 35 /* 36 * Presario700 workaround 37 * for Jack Sense/SPDIF Register misetting causing 38 * no audible output 39 * by Santiago Nullo 04/05/2002 40 */ 41 ac97_wrcd(codec, AC97_AD_JACK_SPDIF, 0x0010); 42} 43 44void ad198x_patch(struct ac97_info* codec) 45{ 46 ac97_wrcd(codec, 0x76, ac97_rdcd(codec, 0x76) | 0x0420); 47} 48 49