neomagic.h revision 139749
1/*- 2 * Copyright (c) 1999 Cameron Grant <cg@freebsd.org> 3 * All rights reserved. 4 * 5 * Derived from the public domain Linux driver 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHERIN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THEPOSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD: head/sys/dev/sound/pci/neomagic.h 139749 2005-01-06 01:43:34Z imp $ 29 */ 30 31#ifndef _NM256_H_ 32#define _NM256_H_ 33 34/* The BIOS signature. */ 35#define NM_SIGNATURE 0x4e4d0000 36/* Signature mask. */ 37#define NM_SIG_MASK 0xffff0000 38 39/* Size of the second memory area. */ 40#define NM_PORT2_SIZE 4096 41 42/* The base offset of the mixer in the second memory area. */ 43#define NM_MIXER_OFFSET 0x600 44 45/* The base offset for the AC97 test */ 46#define NM_MIXER_PRESENCE 0xa06 47#define NM_PRESENCE_MASK 0x050 48#define NM_PRESENCE_VALUE 0x040 49 50/* The maximum size of a coefficient entry. */ 51#define NM_MAX_COEFFICIENT 0x5000 52 53/* The interrupt register. */ 54#define NM_INT_REG 0xa04 55/* And its bits. */ 56#define NM_PLAYBACK_INT 0x40 57#define NM_RECORD_INT 0x100 58#define NM_MISC_INT_1 0x4000 59#define NM_MISC_INT_2 0x1 60 61/* The AV's "mixer ready" status bit and location. */ 62#define NM_MIXER_STATUS_OFFSET 0xa04 63#define NM_MIXER_READY_MASK 0x0800 64 65/* 66 * For the ZX. It uses the same interrupt register, but it holds 32 67 * bits instead of 16. 68 */ 69#define NM2_PLAYBACK_INT 0x10000 70#define NM2_RECORD_INT 0x80000 71#define NM2_MISC_INT_1 0x8 72#define NM2_MISC_INT_2 0x2 73 74/* The ZX's "mixer ready" status bit and location. */ 75#define NM2_MIXER_STATUS_OFFSET 0xa06 76#define NM2_MIXER_READY_MASK 0x0800 77 78/* The playback registers start from here. */ 79#define NM_PLAYBACK_REG_OFFSET 0x0 80/* The record registers start from here. */ 81#define NM_RECORD_REG_OFFSET 0x200 82 83/* The rate register is located 2 bytes from the start of the register area. */ 84#define NM_RATE_REG_OFFSET 2 85 86/* Mono/stereo flag, number of bits on playback, and rate mask. */ 87#define NM_RATE_STEREO 1 88#define NM_RATE_BITS_16 2 89#define NM_RATE_MASK 0xf0 90 91/* Playback enable register. */ 92#define NM_PLAYBACK_ENABLE_REG (NM_PLAYBACK_REG_OFFSET + 0x1) 93#define NM_PLAYBACK_ENABLE_FLAG 1 94#define NM_PLAYBACK_ONESHOT 2 95#define NM_PLAYBACK_FREERUN 4 96 97/* Mutes the audio output. */ 98#define NM_AUDIO_MUTE_REG (NM_PLAYBACK_REG_OFFSET + 0x18) 99#define NM_AUDIO_MUTE_LEFT 0x8000 100#define NM_AUDIO_MUTE_RIGHT 0x0080 101#define NM_AUDIO_MUTE_BOTH 0x8080 102 103/* Recording enable register. */ 104#define NM_RECORD_ENABLE_REG (NM_RECORD_REG_OFFSET + 0) 105#define NM_RECORD_ENABLE_FLAG 1 106#define NM_RECORD_FREERUN 2 107 108#define NM_RBUFFER_START (NM_RECORD_REG_OFFSET + 0x4) 109#define NM_RBUFFER_END (NM_RECORD_REG_OFFSET + 0x10) 110#define NM_RBUFFER_WMARK (NM_RECORD_REG_OFFSET + 0xc) 111#define NM_RBUFFER_CURRP (NM_RECORD_REG_OFFSET + 0x8) 112 113#define NM_PBUFFER_START (NM_PLAYBACK_REG_OFFSET + 0x4) 114#define NM_PBUFFER_END (NM_PLAYBACK_REG_OFFSET + 0x14) 115#define NM_PBUFFER_WMARK (NM_PLAYBACK_REG_OFFSET + 0xc) 116#define NM_PBUFFER_CURRP (NM_PLAYBACK_REG_OFFSET + 0x8) 117 118 119#endif 120