xref: /dragonfly/sys/dev/sound/pci/via82c686.h (revision 984263bc)
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  * 3. All advertising materials mentioning features or use of this software
17  *    must display the following acknowledgement:
18  *      This product includes software developed by the NetBSD
19  *      Foundation, Inc. and its contributors.
20  * 4. Neither the name of The NetBSD Foundation nor the names of its
21  *    contributors may be used to endorse or promote products derived
22  *    from this software without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
25  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
26  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
27  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
28  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34  * POSSIBILITY OF SUCH DAMAGE.
35  *
36  * $FreeBSD: src/sys/dev/sound/pci/via82c686.h,v 1.1.2.7 2003/05/11 01:45:49 orion Exp $
37  */
38 
39 #ifndef _VIA_H
40 #define _VIA_H
41 
42 /*
43  * VIA Technologies VT82C686A Southbridge Audio Driver
44  *
45  * Documentation links:
46  *
47  * ftp://ftp.alsa-project.org/pub/manuals/via/686a.pdf
48  * ftp://ftp.alsa-project.org/pub/manuals/general/ac97r21.pdf
49  * ftp://ftp.alsa-project.org/pub/manuals/ad/AD1881_0.pdf (example AC'97 codec)
50  */
51 
52 #define VIA_AC97STATUS		0x40
53 #define		VIA_AC97STATUS_RDY	0x01
54 #define		VIA_AC97STATUS_LOWPWR	0x02
55 #define		VIA_AC97STATUS_2RDY	0x04
56 
57 #define VIA_ACLINKCTRL		0x41
58 #define         VIA_ACLINK_EN		0x80     /* ac link enab */
59 #define         VIA_ACLINK_NRST		0x40     /* ~(ac reset) */
60 #define         VIA_ACLINK_SYNC		0x20     /* ac sync */
61 #define         VIA_ACLINK_VSR		0x08     /* var. samp. rate */
62 #define         VIA_ACLINK_SGD		0x04     /* SGD enab */
63 #define         VIA_ACLINK_FM		0x02     /* FM enab */
64 #define         VIA_ACLINK_SB		0x01     /* SB enab */
65 #define		VIA_ACLINK_DESIRED	(VIA_ACLINK_EN|VIA_ACLINK_NRST|VIA_ACLINK_VSR|VIA_ACLINK_SGD)
66 #define VIA_PCICONF_FUNC_EN	0x42
67 
68 #define VIA_PLAY_STAT                 0x00
69 #define VIA_RECORD_STAT               0x10
70 #define         VIA_RPSTAT_INTR               0x03
71 #define VIA_PLAY_CONTROL              0x01
72 #define VIA_RECORD_CONTROL            0x11
73 #define         VIA_RPCTRL_START              0x80
74 #define         VIA_RPCTRL_TERMINATE          0x40
75 #define VIA_PLAY_MODE                 0x02
76 #define VIA_RECORD_MODE               0x12
77 #define         VIA_RPMODE_INTR_FLAG          0x01
78 #define         VIA_RPMODE_INTR_EOL           0x02
79 #define         VIA_RPMODE_STEREO             0x10
80 #define         VIA_RPMODE_16BIT              0x20
81 #define         VIA_RPMODE_AUTOSTART          0x80
82 #define VIA_PLAY_DMAOPS_BASE          0x04
83 #define VIA_RECORD_DMAOPS_BASE        0x14
84 #define VIA_PLAY_DMAOPS_COUNT         0x0C
85 #define VIA_RECORD_DMAOPS_COUNT       0x1C
86 
87 #define VIA_CODEC_CTL                 0x80
88 #define         VIA_CODEC_READ                0x00800000
89 #define         VIA_CODEC_BUSY                0x01000000
90 #define         VIA_CODEC_PRIVALID            0x02000000
91 #define         VIA_CODEC_INDEX(x)            ((x)<<16)
92 
93 #endif /* _VIA_H */
94