2 * Copyright 2002 FreeBSD, Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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.
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
25 * $FreeBSD: src/sys/dev/sound/pcm/ac97_patch.c,v 1.3.2.1 2005/12/30 19:55:54 netchild Exp $
26 * $DragonFly: src/sys/dev/sound/pcm/ac97_patch.c,v 1.4 2007/01/04 21:47:03 corecode Exp $
29 #include <dev/sound/pcm/sound.h>
30 #include <dev/sound/pcm/ac97.h>
31 #include <dev/sound/pcm/ac97_patch.h>
33 SND_DECLARE_FILE("$DragonFly: src/sys/dev/sound/pcm/ac97_patch.c,v 1.4 2007/01/04 21:47:03 corecode Exp $");
35 void ad1886_patch(struct ac97_info* codec)
37 #define AC97_AD_JACK_SPDIF 0x72
39 * Presario700 workaround
40 * for Jack Sense/SPDIF Register misetting causing
42 * by Santiago Nullo 04/05/2002
44 ac97_wrcd(codec, AC97_AD_JACK_SPDIF, 0x0010);
47 void ad198x_patch(struct ac97_info* codec)
49 ac97_wrcd(codec, 0x76, ac97_rdcd(codec, 0x76) | 0x0420);
52 void cmi9739_patch(struct ac97_info* codec)
55 * Few laptops (notably ASUS W1000N) need extra register
56 * initialization to power up the internal speakers.
58 ac97_wrcd(codec, AC97_REG_POWER, 0x000f);
59 ac97_wrcd(codec, AC97_MIXEXT_CLFE, 0x0000);
60 ac97_wrcd(codec, 0x64, 0x7110);