The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/oplreg.h

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    1 /*      $NetBSD: oplreg.h,v 1.6 2008/04/28 20:23:51 martin Exp $        */
    2 
    3 /*
    4  * Copyright (c) 1997 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Lennart Augustsson (augustss@NetBSD.org).
    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 
   32 /* Offsets from base address */
   33 #define OPL_L                           0
   34 #define OPL_R                           2
   35 
   36 /* Offsets from base+[OPL_L|OPL_R] */
   37 #define OPL_STATUS                      0
   38 #define   OPL_STATUS_IRQ                0x80
   39 #define   OPL_STATUS_FT1                0x40
   40 #define   OPL_STATUS_FT2                0x20
   41 #define   OPL_STATUS_MASK               0xE0
   42 #define OPL_ADDR                        0
   43 #define OPL_DATA                        1
   44 
   45 #define OPL_TEST                        0x01
   46 #define   OPL_ENABLE_WAVE_SELECT        0x20
   47 
   48 #define OPL_TIMER1                      0x02
   49 #define OPL_TIMER2                      0x03
   50 
   51 #define OPL_TIMER_CONTROL               0x04    /* Left */
   52 #define   OPL_TIMER1_START              0x01
   53 #define   OPL_TIMER2_START              0x02
   54 #define   OPL_TIMER2_MASK               0x20
   55 #define   OPL_TIMER1_MASK               0x40
   56 #define   OPL_IRQ_RESET                 0x80
   57 
   58 #define OPL_CONNECTION_SELECT           0x04    /* Right */
   59 #define   OPL_NOCONNECTION              0x00
   60 #define   OPL_R_4OP_0                   0x01
   61 #define   OPL_R_4OP_1                   0x02
   62 #define   OPL_R_4OP_2                   0x04
   63 #define   OPL_L_4OP_0                   0x08
   64 #define   OPL_L_4OP_1                   0x10
   65 #define   OPL_L_4OP_2                   0x20
   66 
   67 #define OPL_MODE                        0x05    /* Right */
   68 #define   OPL3_ENABLE                   0x01
   69 #define   OPL4_ENABLE                   0x02
   70 
   71 #define OPL_KBD_SPLIT                   0x08    /* Left */
   72 #define   OPL_KEYBOARD_SPLIT            0x40
   73 #define   OPL_COMPOSITE_SINE_WAVE_MODE  0x80
   74 
   75 #define OPL_PERCUSSION                  0xbd    /* Left */
   76 #define   OPL_NOPERCUSSION              0x00
   77 #define   OPL_HIHAT                     0x01
   78 #define   OPL_CYMBAL                    0x02
   79 #define   OPL_TOMTOM                    0x04
   80 #define   OPL_SNAREDRUM                 0x08
   81 #define   OPL_BASSDRUM                  0x10
   82 #define   OPL_PERCUSSION_ENABLE         0x20
   83 #define   OPL_VIBRATO_DEPTH             0x40
   84 #define   OPL_TREMOLO_DEPTH             0x80
   85 
   86 /*
   87  * Offsets to the register banks for operators.
   88  */
   89 /* AM/VIB/EG/KSR/Multiple (0x20 to 0x35) */
   90 #define OPL_AM_VIB                      0x20
   91 #define   OPL_KSR                       0x10
   92 #define   OPL_SUSTAIN                   0x20
   93 #define   OPL_VIBRATO                   0x40
   94 #define   OPL_TREMOLO                   0x80
   95 #define   OPL_MULTIPLE_MASK             0x0f
   96 
   97 /* KSL/Total level (0x40 to 0x55) */
   98 #define OPL_KSL_LEVEL                   0x40
   99 #define   OPL_KSL_MASK                  0xc0    /* Envelope scaling bits */
  100 #define   OPL_TOTAL_LEVEL_MASK          0x3f    /* Strength (volume) of OP */
  101 
  102 /* Attack / Decay rate (0x60 to 0x75) */
  103 #define OPL_ATTACK_DECAY                0x60
  104 #define   OPL_ATTACK_MASK               0xf0
  105 #define   DECAY_MASK                    0x0f
  106 
  107 /* Sustain level / Release rate (0x80 to 0x95) */
  108 #define OPL_SUSTAIN_RELEASE             0x80
  109 #define   OPL_SUSTAIN_MASK              0xf0
  110 #define   OPL_RELEASE_MASK              0x0f
  111 
  112 /* Wave select (0xE0 to 0xF5) */
  113 #define OPL_WAVE_SELECT                 0xe0
  114 
  115 #define OPL_MAXREG                      0xf5
  116 
  117 /*
  118  * Offsets to the register banks for voices.
  119  */
  120 /* F-Number low bits (0xA0 to 0xA8). */
  121 #define OPL_FNUM_LOW                    0xa0
  122 
  123 /* F-number high bits / Key on / Block (octave) (0xB0 to 0xB8) */
  124 #define OPL_KEYON_BLOCK                 0xb0
  125 #define   OPL_KEYON_BIT                 0x20
  126 #define   OPL_BLOCKNUM_MASK             0x1c
  127 #define   OPL_FNUM_HIGH_MASK            0x03
  128 
  129 /* Feedback / Connection (0xc0 to 0xc8) */
  130 #define OPL_FEEDBACK_CONNECTION         0xc0
  131 #define   OPL_FEEDBACK_MASK             0x0e
  132 #define   OPL_CONNECTION_BIT            0x01
  133 #define   OPL_STEREO_BITS               0x30    /* OPL-3 only */
  134 #define     OPL_VOICE_TO_LEFT           0x10
  135 #define     OPL_VOICE_TO_RIGHT          0x20
  136 
  137 #define OPL2_NVOICE 9
  138 #define OPL3_NVOICE 18

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