drivers/sound/sound_config.h

   1 /* sound_config.h
   2  *
   3  * A driver for sound cards, misc. configuration parameters.
   4  */
   5 /*
   6  * Copyright (C) by Hannu Savolainen 1993-1997
   7  *
   8  * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
   9  * Version 2 (June 1991). See the "COPYING" file distributed with this software
  10  * for more info.
  11  */
  12
  13
  14 #ifndef  _SOUND_CONFIG_H_
  15 #define  _SOUND_CONFIG_H_
  16
  17 #include <linux/config.h>
  18 #include <linux/fs.h>
  19 #include <linux/sound.h>
  20
  21 #include "os.h"
  22 #include "soundvers.h"
  23
  24
  25 #ifndef SND_DEFAULT_ENABLE
  26 #define SND_DEFAULT_ENABLE      1
  27 #endif
  28
  29 #ifndef MAX_REALTIME_FACTOR
  30 #define MAX_REALTIME_FACTOR     4
  31 #endif
  32
  33 /*
  34  * Use always 64k buffer size. There is no reason to use shorter.
  35  */
  36 #undef DSP_BUFFSIZE
  37 #define DSP_BUFFSIZE            (64*1024)
  38
  39 #ifndef DSP_BUFFCOUNT
  40 #define DSP_BUFFCOUNT           1       /* 1 is recommended. */
  41 #endif
  42
  43 #define FM_MONO         0x388   /* This is the I/O address used by AdLib */
  44
  45 #ifndef CONFIG_PAS_BASE
  46 #define CONFIG_PAS_BASE 0x388
  47 #endif
  48
  49 /* SEQ_MAX_QUEUE is the maximum number of sequencer events buffered by the
  50    driver. (There is no need to alter this) */
  51 #define SEQ_MAX_QUEUE   1024
  52
  53 #define SBFM_MAXINSTR           (256)   /* Size of the FM Instrument bank */
  54 /* 128 instruments for general MIDI setup and 16 unassigned      */
  55
  56 /*
  57  * Minor numbers for the sound driver.
  58  *
  59  * Unfortunately Creative called the codec chip of SB as a DSP. For this
  60  * reason the /dev/dsp is reserved for digitized audio use. There is a
  61  * device for true DSP processors but it will be called something else.
  62  * In v3.0 it's /dev/sndproc but this could be a temporary solution.
  63  */
  64
  65 #define SND_NDEVS       256     /* Number of supported devices */
  66 #define SND_DEV_CTL     0       /* Control port /dev/mixer */
  67 #define SND_DEV_SEQ     1       /* Sequencer output /dev/sequencer (FM
  68                                    synthesizer and MIDI output) */
  69 #define SND_DEV_MIDIN   2       /* Raw midi access */
  70 #define SND_DEV_DSP     3       /* Digitized voice /dev/dsp */
  71 #define SND_DEV_AUDIO   4       /* Sparc compatible /dev/audio */
  72 #define SND_DEV_DSP16   5       /* Like /dev/dsp but 16 bits/sample */
  73 #define SND_DEV_STATUS  6       /* /dev/sndstat */
  74 #define SND_DEV_AWFM    7       /* Reserved */
  75 #define SND_DEV_SEQ2    8       /* /dev/sequencer, level 2 interface */
  76 #define SND_DEV_SNDPROC 9       /* /dev/sndproc for programmable devices */
  77 #define SND_DEV_PSS     SND_DEV_SNDPROC
  78
  79 #define DSP_DEFAULT_SPEED       8000
  80
  81 #define MAX_AUDIO_DEV   5
  82 #define MAX_MIXER_DEV   5
  83 #define MAX_SYNTH_DEV   5
  84 #define MAX_MIDI_DEV    6
  85 #define MAX_TIMER_DEV   4
  86
  87 struct address_info {
  88         int io_base;
  89         int irq;
  90         int dma;
  91         int dma2;
  92         int always_detect;      /* 1=Trust me, it's there */
  93         char *name;
  94         int driver_use_1;       /* Driver defined field 1 */
  95         int driver_use_2;       /* Driver defined field 2 */
  96         int *osp;       /* OS specific info */
  97         int card_subtype;       /* Driver specific. Usually 0 */
  98         void *memptr;           /* Module memory chainer */
  99         int slots[6];           /* To remember driver slot ids */
 100 };
 101
 102 #define SYNTH_MAX_VOICES        32
 103
 104 struct voice_alloc_info {
 105                 int max_voice;
 106                 int used_voices;
 107                 int ptr;                /* For device specific use */
 108                 unsigned short map[SYNTH_MAX_VOICES]; /* (ch << 8) | (note+1) */
 109                 int timestamp;
 110                 int alloc_times[SYNTH_MAX_VOICES];
 111         };
 112
 113 struct channel_info {
 114                 int pgm_num;
 115                 int bender_value;
 116                 int bender_range;
 117                 unsigned char controllers[128];
 118         };
 119
 120 /*
 121  * Process wakeup reasons
 122  */
 123 #define WK_NONE         0x00
 124 #define WK_WAKEUP       0x01
 125 #define WK_TIMEOUT      0x02
 126 #define WK_SIGNAL       0x04
 127 #define WK_SLEEP        0x08
 128 #define WK_SELECT       0x10
 129 #define WK_ABORT        0x20
 130
 131 #define OPEN_READ       PCM_ENABLE_INPUT
 132 #define OPEN_WRITE      PCM_ENABLE_OUTPUT
 133 #define OPEN_READWRITE  (OPEN_READ|OPEN_WRITE)
 134
 135 #if OPEN_READ == FMODE_READ && OPEN_WRITE == FMODE_WRITE
 136
 137 extern __inline__ int translate_mode(struct file *file)
 138 {
 139         return file->f_mode;
 140 }
 141
 142 #else
 143
 144 extern __inline__ int translate_mode(struct file *file)
 145 {
 146         return ((file->f_mode & FMODE_READ) ? OPEN_READ : 0) |
 147                 ((file->f_mode & FMODE_WRITE) ? OPEN_WRITE : 0);
 148 }
 149
 150 #endif
 151
 152
 153 #include "sound_calls.h"
 154 #include "dev_table.h"
 155
 156 #ifndef DEB
 157 #define DEB(x)
 158 #endif
 159
 160 #ifndef DDB
 161 #define DDB(x) {}
 162 #endif
 163
 164 #ifndef MDB
 165 #ifdef MODULE
 166 #define MDB(x) x
 167 #else
 168 #define MDB(x)
 169 #endif
 170 #endif
 171
 172 #define TIMER_ARMED     121234
 173 #define TIMER_NOT_ARMED 1
 174
 175 #endif