1 | /* $NetBSD: neoreg.h,v 1.1 2000/11/05 06:43:46 thorpej Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk> |
5 | * All rights reserved. |
6 | * |
7 | * Derived from the public domain Linux driver |
8 | * |
9 | * Redistribution and use in source and binary forms, with or without |
10 | * modification, are permitted provided that the following conditions |
11 | * are met: |
12 | * 1. Redistributions of source code must retain the above copyright |
13 | * notice, this list of conditions and the following disclaimer. |
14 | * 2. Redistributions in binary form must reproduce the above copyright |
15 | * notice, this list of conditions and the following disclaimer in the |
16 | * documentation and/or other materials provided with the distribution. |
17 | * |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
19 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
21 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
24 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
25 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHERIN CONTRACT, STRICT |
26 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
27 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THEPOSSIBILITY OF |
28 | * SUCH DAMAGE. |
29 | * |
30 | * OpenBSD: neoreg.h,v 1.1 2000/04/13 00:10:52 csapuntz Exp |
31 | */ |
32 | |
33 | #ifndef _DEV_PCI_NEOREG_H_ |
34 | #define _DEV_PCI_NEOREG_H_ |
35 | |
36 | /* The BIOS signature. */ |
37 | #define NM_SIGNATURE 0x4e4d0000 |
38 | /* Signature mask. */ |
39 | #define NM_SIG_MASK 0xffff0000 |
40 | |
41 | /* Size of the second memory area. */ |
42 | #define NM_PORT2_SIZE 4096 |
43 | |
44 | /* The base offset of the mixer in the second memory area. */ |
45 | #define NM_MIXER_OFFSET 0x600 |
46 | |
47 | /* The maximum size of a coefficient entry. */ |
48 | #define NM_MAX_COEFFICIENT 0x5000 |
49 | |
50 | /* The interrupt register. */ |
51 | #define NM_INT_REG 0xa04 |
52 | /* And its bits. */ |
53 | #define NM_PLAYBACK_INT 0x40 |
54 | #define NM_RECORD_INT 0x100 |
55 | #define NM_MISC_INT_1 0x4000 |
56 | #define NM_MISC_INT_2 0x1 |
57 | |
58 | /* The AV's "mixer ready" status bit and location. */ |
59 | #define NM_MIXER_STATUS_OFFSET 0xa04 |
60 | #define NM_MIXER_READY_MASK 0x0800 |
61 | |
62 | /* |
63 | * For the ZX. It uses the same interrupt register, but it holds 32 |
64 | * bits instead of 16. |
65 | */ |
66 | #define NM2_PLAYBACK_INT 0x10000 |
67 | #define NM2_RECORD_INT 0x80000 |
68 | #define NM2_MISC_INT_1 0x8 |
69 | #define NM2_MISC_INT_2 0x2 |
70 | |
71 | /* The ZX's "mixer ready" status bit and location. */ |
72 | #define NM2_MIXER_STATUS_OFFSET 0xa06 |
73 | #define NM2_MIXER_READY_MASK 0x0800 |
74 | |
75 | /* The playback registers start from here. */ |
76 | #define NM_PLAYBACK_REG_OFFSET 0x0 |
77 | /* The record registers start from here. */ |
78 | #define NM_RECORD_REG_OFFSET 0x200 |
79 | |
80 | /* The rate register is located 2 bytes from the start of the register area. */ |
81 | #define NM_RATE_REG_OFFSET 2 |
82 | |
83 | /* Mono/stereo flag, number of bits on playback, and rate mask. */ |
84 | #define NM_RATE_STEREO 1 |
85 | #define NM_RATE_BITS_16 2 |
86 | #define NM_RATE_MASK 0xf0 |
87 | |
88 | /* Playback enable register. */ |
89 | #define NM_PLAYBACK_ENABLE_REG (NM_PLAYBACK_REG_OFFSET + 0x1) |
90 | #define NM_PLAYBACK_ENABLE_FLAG 1 |
91 | #define NM_PLAYBACK_ONESHOT 2 |
92 | #define NM_PLAYBACK_FREERUN 4 |
93 | |
94 | /* Mutes the audio output. */ |
95 | #define NM_AUDIO_MUTE_REG (NM_PLAYBACK_REG_OFFSET + 0x18) |
96 | #define NM_AUDIO_MUTE_LEFT 0x8000 |
97 | #define NM_AUDIO_MUTE_RIGHT 0x0080 |
98 | #define NM_AUDIO_MUTE_BOTH 0x8080 |
99 | |
100 | /* Recording enable register. */ |
101 | #define NM_RECORD_ENABLE_REG (NM_RECORD_REG_OFFSET + 0) |
102 | #define NM_RECORD_ENABLE_FLAG 1 |
103 | #define NM_RECORD_FREERUN 2 |
104 | |
105 | #define NM_RBUFFER_START (NM_RECORD_REG_OFFSET + 0x4) |
106 | #define NM_RBUFFER_END (NM_RECORD_REG_OFFSET + 0x10) |
107 | #define NM_RBUFFER_WMARK (NM_RECORD_REG_OFFSET + 0xc) |
108 | #define NM_RBUFFER_CURRP (NM_RECORD_REG_OFFSET + 0x8) |
109 | |
110 | #define NM_PBUFFER_START (NM_PLAYBACK_REG_OFFSET + 0x4) |
111 | #define NM_PBUFFER_END (NM_PLAYBACK_REG_OFFSET + 0x14) |
112 | #define NM_PBUFFER_WMARK (NM_PLAYBACK_REG_OFFSET + 0xc) |
113 | #define NM_PBUFFER_CURRP (NM_PLAYBACK_REG_OFFSET + 0x8) |
114 | |
115 | #endif /* _DEV_PCI_NEOREG_H_ */ |
116 | |