FreeBSD kernel sound device code
via82c686.h
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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 * $FreeBSD$
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 */