ac97_patch.c revision 150829 
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 150829 2005-10-02 15:50:22Z netchild $");
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
49void cmi9739_patch(struct ac97_info* codec)
50{
51	/*
52	 * Few laptops (notably ASUS W1000N) need extra register
53	 * initialization to power up the internal speakers.
54	 */
55	ac97_wrcd(codec, AC97_REG_POWER, 0x000f);
56	ac97_wrcd(codec, AC97_MIXEXT_CLFE, 0x0000);
57	ac97_wrcd(codec, 0x64, 0x7110);
58}
59