via82c686.h revision 330897 
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-NetBSD
3 *
4 * Copyright (c) 2000 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Tyler C. Sarna.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 *
31 * $FreeBSD: stable/11/sys/dev/sound/pci/via82c686.h 330897 2018-03-14 03:19:51Z eadler $
32 */
33
34#ifndef _VIA_H
35#define _VIA_H
36
37/*
38 * VIA Technologies VT82C686A Southbridge Audio Driver
39 *
40 * Documentation links:
41 *
42 * ftp://ftp.alsa-project.org/pub/manuals/via/686a.pdf
43 * ftp://ftp.alsa-project.org/pub/manuals/general/ac97r21.pdf
44 * ftp://ftp.alsa-project.org/pub/manuals/ad/AD1881_0.pdf (example AC'97 codec)
45 */
46
47#define VIA_AC97STATUS		0x40
48#define		VIA_AC97STATUS_RDY	0x01
49#define		VIA_AC97STATUS_LOWPWR	0x02
50#define		VIA_AC97STATUS_2RDY	0x04
51
52#define VIA_ACLINKCTRL		0x41
53#define         VIA_ACLINK_EN		0x80     /* ac link enab */
54#define         VIA_ACLINK_NRST		0x40     /* ~(ac reset) */
55#define         VIA_ACLINK_SYNC		0x20     /* ac sync */
56#define         VIA_ACLINK_VSR		0x08     /* var. samp. rate */
57#define         VIA_ACLINK_SGD		0x04     /* SGD enab */
58#define         VIA_ACLINK_FM		0x02     /* FM enab */
59#define         VIA_ACLINK_SB		0x01     /* SB enab */
60#define		VIA_ACLINK_DESIRED	(VIA_ACLINK_EN|VIA_ACLINK_NRST|VIA_ACLINK_VSR|VIA_ACLINK_SGD)
61#define VIA_PCICONF_FUNC_EN	0x42
62
63#define VIA_PLAY_STAT                 0x00
64#define VIA_RECORD_STAT               0x10
65#define         VIA_RPSTAT_INTR               0x03
66#define VIA_PLAY_CONTROL              0x01
67#define VIA_RECORD_CONTROL            0x11
68#define         VIA_RPCTRL_START              0x80
69#define         VIA_RPCTRL_TERMINATE          0x40
70#define VIA_PLAY_MODE                 0x02
71#define VIA_RECORD_MODE               0x12
72#define         VIA_RPMODE_INTR_FLAG          0x01
73#define         VIA_RPMODE_INTR_EOL           0x02
74#define         VIA_RPMODE_STEREO             0x10
75#define         VIA_RPMODE_16BIT              0x20
76#define         VIA_RPMODE_AUTOSTART          0x80
77#define VIA_PLAY_DMAOPS_BASE          0x04
78#define VIA_RECORD_DMAOPS_BASE        0x14
79#define VIA_PLAY_DMAOPS_COUNT         0x0C
80#define VIA_RECORD_DMAOPS_COUNT       0x1C
81
82#define VIA_CODEC_CTL                 0x80
83#define         VIA_CODEC_READ                0x00800000
84#define         VIA_CODEC_BUSY                0x01000000
85#define         VIA_CODEC_PRIVALID            0x02000000
86#define         VIA_CODEC_INDEX(x)            ((x)<<16)
87
88#endif /* _VIA_H */
89