xref: /dragonfly/sys/dev/sound/pci/via82c686.h (revision 2a1ad637)
1 /*-
2  * Copyright (c) 2000 The NetBSD Foundation, Inc.
3  * All rights reserved.
4  *
5  * This code is derived from software contributed to The NetBSD Foundation
6  * by Tyler C. Sarna.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27  * POSSIBILITY OF SUCH DAMAGE.
28  *
29  * $FreeBSD: head/sys/dev/sound/pci/via82c686.h 192457 2009-05-20 18:31:11Z joel $
30  */
31 
32 #ifndef _VIA_H
33 #define _VIA_H
34 
35 /*
36  * VIA Technologies VT82C686A Southbridge Audio Driver
37  *
38  * Documentation links:
39  *
40  * ftp://ftp.alsa-project.org/pub/manuals/via/686a.pdf
41  * ftp://ftp.alsa-project.org/pub/manuals/general/ac97r21.pdf
42  * ftp://ftp.alsa-project.org/pub/manuals/ad/AD1881_0.pdf (example AC'97 codec)
43  */
44 
45 #define VIA_AC97STATUS		0x40
46 #define		VIA_AC97STATUS_RDY	0x01
47 #define		VIA_AC97STATUS_LOWPWR	0x02
48 #define		VIA_AC97STATUS_2RDY	0x04
49 
50 #define VIA_ACLINKCTRL		0x41
51 #define         VIA_ACLINK_EN		0x80     /* ac link enab */
52 #define         VIA_ACLINK_NRST		0x40     /* ~(ac reset) */
53 #define         VIA_ACLINK_SYNC		0x20     /* ac sync */
54 #define         VIA_ACLINK_VSR		0x08     /* var. samp. rate */
55 #define         VIA_ACLINK_SGD		0x04     /* SGD enab */
56 #define         VIA_ACLINK_FM		0x02     /* FM enab */
57 #define         VIA_ACLINK_SB		0x01     /* SB enab */
58 #define		VIA_ACLINK_DESIRED	(VIA_ACLINK_EN|VIA_ACLINK_NRST|VIA_ACLINK_VSR|VIA_ACLINK_SGD)
59 #define VIA_PCICONF_FUNC_EN	0x42
60 
61 #define VIA_PLAY_STAT                 0x00
62 #define VIA_RECORD_STAT               0x10
63 #define         VIA_RPSTAT_INTR               0x03
64 #define VIA_PLAY_CONTROL              0x01
65 #define VIA_RECORD_CONTROL            0x11
66 #define         VIA_RPCTRL_START              0x80
67 #define         VIA_RPCTRL_TERMINATE          0x40
68 #define VIA_PLAY_MODE                 0x02
69 #define VIA_RECORD_MODE               0x12
70 #define         VIA_RPMODE_INTR_FLAG          0x01
71 #define         VIA_RPMODE_INTR_EOL           0x02
72 #define         VIA_RPMODE_STEREO             0x10
73 #define         VIA_RPMODE_16BIT              0x20
74 #define         VIA_RPMODE_AUTOSTART          0x80
75 #define VIA_PLAY_DMAOPS_BASE          0x04
76 #define VIA_RECORD_DMAOPS_BASE        0x14
77 #define VIA_PLAY_DMAOPS_COUNT         0x0C
78 #define VIA_RECORD_DMAOPS_COUNT       0x1C
79 
80 #define VIA_CODEC_CTL                 0x80
81 #define         VIA_CODEC_READ                0x00800000
82 #define         VIA_CODEC_BUSY                0x01000000
83 #define         VIA_CODEC_PRIVALID            0x02000000
84 #define         VIA_CODEC_INDEX(x)            ((x)<<16)
85 
86 #endif /* _VIA_H */
87