sys/dev/sound/pci/neomagic.h

   1 /*
   2  * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
   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: src/sys/dev/sound/pci/neomagic.h,v 1.1.2.2 2002/04/22 15:49:32 cg Exp $
  29  * $DragonFly: src/sys/dev/sound/pci/neomagic.h,v 1.2 2003/06/17 04:28:30 dillon Exp $
  30  */
  31
  32 #ifndef _NM256_H_
  33 #define _NM256_H_
  34
  35 /* The BIOS signature. */
  36 #define NM_SIGNATURE 0x4e4d0000
  37 /* Signature mask. */
  38 #define NM_SIG_MASK 0xffff0000
  39
  40 /* Size of the second memory area. */
  41 #define NM_PORT2_SIZE 4096
  42
  43 /* The base offset of the mixer in the second memory area. */
  44 #define NM_MIXER_OFFSET 0x600
  45
  46 /* The base offset for the AC97 test */
  47 #define NM_MIXER_PRESENCE 0xa06
  48 #define NM_PRESENCE_MASK  0x050
  49 #define NM_PRESENCE_VALUE 0x040
  50
  51 /* The maximum size of a coefficient entry. */
  52 #define NM_MAX_COEFFICIENT 0x5000
  53
  54 /* The interrupt register. */
  55 #define NM_INT_REG 0xa04
  56 /* And its bits. */
  57 #define NM_PLAYBACK_INT 0x40
  58 #define NM_RECORD_INT 0x100
  59 #define NM_MISC_INT_1 0x4000
  60 #define NM_MISC_INT_2 0x1
  61
  62 /* The AV's "mixer ready" status bit and location. */
  63 #define NM_MIXER_STATUS_OFFSET 0xa04
  64 #define NM_MIXER_READY_MASK 0x0800
  65
  66 /*
  67  * For the ZX.  It uses the same interrupt register, but it holds 32
  68  * bits instead of 16.
  69  */
  70 #define NM2_PLAYBACK_INT 0x10000
  71 #define NM2_RECORD_INT 0x80000
  72 #define NM2_MISC_INT_1 0x8
  73 #define NM2_MISC_INT_2 0x2
  74
  75 /* The ZX's "mixer ready" status bit and location. */
  76 #define NM2_MIXER_STATUS_OFFSET 0xa06
  77 #define NM2_MIXER_READY_MASK 0x0800
  78
  79 /* The playback registers start from here. */
  80 #define NM_PLAYBACK_REG_OFFSET 0x0
  81 /* The record registers start from here. */
  82 #define NM_RECORD_REG_OFFSET 0x200
  83
  84 /* The rate register is located 2 bytes from the start of the register area. */
  85 #define NM_RATE_REG_OFFSET 2
  86
  87 /* Mono/stereo flag, number of bits on playback, and rate mask. */
  88 #define NM_RATE_STEREO 1
  89 #define NM_RATE_BITS_16 2
  90 #define NM_RATE_MASK 0xf0
  91
  92 /* Playback enable register. */
  93 #define NM_PLAYBACK_ENABLE_REG (NM_PLAYBACK_REG_OFFSET + 0x1)
  94 #define NM_PLAYBACK_ENABLE_FLAG 1
  95 #define NM_PLAYBACK_ONESHOT 2
  96 #define NM_PLAYBACK_FREERUN 4
  97
  98 /* Mutes the audio output. */
  99 #define NM_AUDIO_MUTE_REG (NM_PLAYBACK_REG_OFFSET + 0x18)
 100 #define NM_AUDIO_MUTE_LEFT 0x8000
 101 #define NM_AUDIO_MUTE_RIGHT 0x0080
 102 #define NM_AUDIO_MUTE_BOTH 0x8080
 103
 104 /* Recording enable register. */
 105 #define NM_RECORD_ENABLE_REG (NM_RECORD_REG_OFFSET + 0)
 106 #define NM_RECORD_ENABLE_FLAG 1
 107 #define NM_RECORD_FREERUN 2
 108
 109 #define NM_RBUFFER_START (NM_RECORD_REG_OFFSET + 0x4)
 110 #define NM_RBUFFER_END   (NM_RECORD_REG_OFFSET + 0x10)
 111 #define NM_RBUFFER_WMARK (NM_RECORD_REG_OFFSET + 0xc)
 112 #define NM_RBUFFER_CURRP (NM_RECORD_REG_OFFSET + 0x8)
 113
 114 #define NM_PBUFFER_START (NM_PLAYBACK_REG_OFFSET + 0x4)
 115 #define NM_PBUFFER_END   (NM_PLAYBACK_REG_OFFSET + 0x14)
 116 #define NM_PBUFFER_WMARK (NM_PLAYBACK_REG_OFFSET + 0xc)
 117 #define NM_PBUFFER_CURRP (NM_PLAYBACK_REG_OFFSET + 0x8)
 118
 119
 120 #endif