Linux kernel & device driver programming

Cross-Referenced Linux and Device Driver Code

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Version: [ 2.6.11.8 ] [ 2.6.25 ] [ 2.6.25.8 ] [ 2.6.31.13 ] Architecture: [ i386 ]
  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 #define SND_NDEVS       256     /* Number of supported devices */
 57 
 58 #define DSP_DEFAULT_SPEED       8000
 59 
 60 #define MAX_AUDIO_DEV   5
 61 #define MAX_MIXER_DEV   5
 62 #define MAX_SYNTH_DEV   5
 63 #define MAX_MIDI_DEV    6
 64 #define MAX_TIMER_DEV   4
 65 
 66 struct address_info {
 67         int io_base;
 68         int irq;
 69         int dma;
 70         int dma2;
 71         int always_detect;      /* 1=Trust me, it's there */
 72         char *name;
 73         int driver_use_1;       /* Driver defined field 1 */
 74         int driver_use_2;       /* Driver defined field 2 */
 75         int *osp;       /* OS specific info */
 76         int card_subtype;       /* Driver specific. Usually 0 */
 77         void *memptr;           /* Module memory chainer */
 78         int slots[6];           /* To remember driver slot ids */
 79 };
 80 
 81 #define SYNTH_MAX_VOICES        32
 82 
 83 struct voice_alloc_info {
 84                 int max_voice;
 85                 int used_voices;
 86                 int ptr;                /* For device specific use */
 87                 unsigned short map[SYNTH_MAX_VOICES]; /* (ch << 8) | (note+1) */
 88                 int timestamp;
 89                 int alloc_times[SYNTH_MAX_VOICES];
 90         };
 91 
 92 struct channel_info {
 93                 int pgm_num;
 94                 int bender_value;
 95                 int bender_range;
 96                 unsigned char controllers[128];
 97         };
 98 
 99 /*
100  * Process wakeup reasons
101  */
102 #define WK_NONE         0x00
103 #define WK_WAKEUP       0x01
104 #define WK_TIMEOUT      0x02
105 #define WK_SIGNAL       0x04
106 #define WK_SLEEP        0x08
107 #define WK_SELECT       0x10
108 #define WK_ABORT        0x20
109 
110 #define OPEN_READ       PCM_ENABLE_INPUT
111 #define OPEN_WRITE      PCM_ENABLE_OUTPUT
112 #define OPEN_READWRITE  (OPEN_READ|OPEN_WRITE)
113 
114 #if OPEN_READ == FMODE_READ && OPEN_WRITE == FMODE_WRITE
115 
116 static inline int translate_mode(struct file *file)
117 {
118         return file->f_mode;
119 }
120 
121 #else
122 
123 static inline int translate_mode(struct file *file)
124 {
125         return ((file->f_mode & FMODE_READ) ? OPEN_READ : 0) |
126                 ((file->f_mode & FMODE_WRITE) ? OPEN_WRITE : 0);
127 }
128 
129 #endif
130 
131 
132 #include "sound_calls.h"
133 #include "dev_table.h"
134 
135 #ifndef DEB
136 #define DEB(x)
137 #endif
138 
139 #ifndef DDB
140 #define DDB(x) do {} while (0)
141 #endif
142 
143 #ifndef MDB
144 #ifdef MODULE
145 #define MDB(x) x
146 #else
147 #define MDB(x)
148 #endif
149 #endif
150 
151 #define TIMER_ARMED     121234
152 #define TIMER_NOT_ARMED 1
153 
154 #endif
155 
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