include/sound/ainstr_iw.h

   1 /*
   2  *  Advanced Linux Sound Architecture
   3  *
   4  *  InterWave FFFF Instrument Format
   5  *  Copyright (c) 1994-99 by Jaroslav Kysela <perex@perex.cz>
   6  *
   7  *
   8  *   This program is free software; you can redistribute it and/or modify
   9  *   it under the terms of the GNU General Public License as published by
  10  *   the Free Software Foundation; either version 2 of the License, or
  11  *   (at your option) any later version.
  12  *
  13  *   This program is distributed in the hope that it will be useful,
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *   GNU General Public License for more details.
  17  *
  18  *   You should have received a copy of the GNU General Public License
  19  *   along with this program; if not, write to the Free Software
  20  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21  *
  22  */
  23
  24 #ifndef __SOUND_AINSTR_IW_H
  25 #define __SOUND_AINSTR_IW_H
  26
  27 #ifndef __KERNEL__
  28 #include <asm/types.h>
  29 #include <asm/byteorder.h>
  30 #endif
  31
  32 /*
  33  *  share types (share ID 1)
  34  */
  35
  36 #define IWFFFF_SHARE_FILE               0
  37
  38 /*
  39  *  wave formats
  40  */
  41
  42 #define IWFFFF_WAVE_16BIT               0x0001  /* 16-bit wave */
  43 #define IWFFFF_WAVE_UNSIGNED            0x0002  /* unsigned wave */
  44 #define IWFFFF_WAVE_INVERT              0x0002  /* same as unsigned wave */
  45 #define IWFFFF_WAVE_BACKWARD            0x0004  /* backward mode (maybe used for reverb or ping-ping loop) */
  46 #define IWFFFF_WAVE_LOOP                0x0008  /* loop mode */
  47 #define IWFFFF_WAVE_BIDIR               0x0010  /* bidirectional mode */
  48 #define IWFFFF_WAVE_ULAW                0x0020  /* uLaw compressed wave */
  49 #define IWFFFF_WAVE_RAM                 0x0040  /* wave is _preloaded_ in RAM (it is used for ROM simulation) */
  50 #define IWFFFF_WAVE_ROM                 0x0080  /* wave is in ROM */
  51 #define IWFFFF_WAVE_STEREO              0x0100  /* wave is stereo */
  52
  53 /*
  54  *  Wavetable definitions
  55  */
  56
  57 struct iwffff_wave {
  58         unsigned int share_id[4];       /* share id - zero = no sharing */
  59         unsigned int format;            /* wave format */
  60
  61         struct {
  62                 unsigned int number;    /* some other ID for this wave */
  63                 unsigned int memory;    /* begin of waveform in onboard memory */
  64                 unsigned char *ptr;     /* pointer to waveform in system memory */
  65         } address;
  66
  67         unsigned int size;              /* size of waveform in samples */
  68         unsigned int start;             /* start offset in samples * 16 (lowest 4 bits - fraction) */
  69         unsigned int loop_start;        /* bits loop start offset in samples * 16 (lowest 4 bits - fraction) */
  70         unsigned int loop_end;          /* loop start offset in samples * 16 (lowest 4 bits - fraction) */
  71         unsigned short loop_repeat;     /* loop repeat - 0 = forever */
  72         unsigned int sample_ratio;      /* sample ratio (44100 * 1024 / rate) */
  73         unsigned char attenuation;      /* 0 - 127 (no corresponding midi controller) */
  74         unsigned char low_note;         /* lower frequency range for this waveform */
  75         unsigned char high_note;        /* higher frequency range for this waveform */
  76         unsigned char pad;
  77
  78         struct iwffff_wave *next;
  79 };
  80
  81 /*
  82  *  Layer
  83  */
  84
  85 #define IWFFFF_LFO_SHAPE_TRIANGLE       0
  86 #define IWFFFF_LFO_SHAPE_POSTRIANGLE    1
  87
  88 struct iwffff_lfo {
  89         unsigned short freq;            /* (0-2047) 0.01Hz - 21.5Hz */
  90         signed short depth;             /* volume +- (0-255) 0.48675dB/step */
  91         signed short sweep;             /* 0 - 950 deciseconds */
  92         unsigned char shape;            /* see to IWFFFF_LFO_SHAPE_XXXX */
  93         unsigned char delay;            /* 0 - 255 deciseconds */
  94 };
  95
  96 #define IWFFFF_ENV_FLAG_RETRIGGER       0x0001  /* flag - retrigger */
  97
  98 #define IWFFFF_ENV_MODE_ONE_SHOT        0x0001  /* mode - one shot */
  99 #define IWFFFF_ENV_MODE_SUSTAIN         0x0002  /* mode - sustain */
 100 #define IWFFFF_ENV_MODE_NO_SUSTAIN      0x0003  /* mode - no sustain */
 101
 102 #define IWFFFF_ENV_INDEX_VELOCITY       0x0001  /* index - velocity */
 103 #define IWFFFF_ENV_INDEX_FREQUENCY      0x0002  /* index - frequency */
 104
 105 struct iwffff_env_point {
 106         unsigned short offset;
 107         unsigned short rate;
 108 };
 109
 110 struct iwffff_env_record {
 111         unsigned short nattack;
 112         unsigned short nrelease;
 113         unsigned short sustain_offset;
 114         unsigned short sustain_rate;
 115         unsigned short release_rate;
 116         unsigned char hirange;
 117         unsigned char pad;
 118         struct iwffff_env_record *next;
 119         /* points are stored here */
 120         /* count of points = nattack + nrelease */
 121 };
 122
 123 struct iwffff_env {
 124         unsigned char flags;
 125         unsigned char mode;
 126         unsigned char index;
 127         unsigned char pad;
 128         struct iwffff_env_record *record;
 129 };
 130
 131 #define IWFFFF_LAYER_FLAG_RETRIGGER     0x0001  /* retrigger */
 132
 133 #define IWFFFF_LAYER_VELOCITY_TIME      0x0000  /* velocity mode = time */
 134 #define IWFFFF_LAYER_VELOCITY_RATE      0x0001  /* velocity mode = rate */
 135
 136 #define IWFFFF_LAYER_EVENT_KUP          0x0000  /* layer event - key up */
 137 #define IWFFFF_LAYER_EVENT_KDOWN        0x0001  /* layer event - key down */
 138 #define IWFFFF_LAYER_EVENT_RETRIG       0x0002  /* layer event - retrigger */
 139 #define IWFFFF_LAYER_EVENT_LEGATO       0x0003  /* layer event - legato */
 140
 141 struct iwffff_layer {
 142         unsigned char flags;
 143         unsigned char velocity_mode;
 144         unsigned char layer_event;
 145         unsigned char low_range;        /* range for layer based */
 146         unsigned char high_range;       /* on either velocity or frequency */
 147         unsigned char pan;              /* pan offset from CC1 (0 left - 127 right) */
 148         unsigned char pan_freq_scale;   /* position based on frequency (0-127) */
 149         unsigned char attenuation;      /* 0-127 (no corresponding midi controller) */
 150         struct iwffff_lfo tremolo;              /* tremolo effect */
 151         struct iwffff_lfo vibrato;              /* vibrato effect */
 152         unsigned short freq_scale;      /* 0-2048, 1024 is equal to semitone scaling */
 153         unsigned char freq_center;      /* center for keyboard frequency scaling */
 154         unsigned char pad;
 155         struct iwffff_env penv;         /* pitch envelope */
 156         struct iwffff_env venv;         /* volume envelope */
 157
 158         struct iwffff_wave *wave;
 159         struct iwffff_layer *next;
 160 };
 161
 162 /*
 163  *  Instrument
 164  */
 165
 166 #define IWFFFF_EXCLUDE_NONE             0x0000  /* exclusion mode - none */
 167 #define IWFFFF_EXCLUDE_SINGLE           0x0001  /* exclude single - single note from the instrument group */
 168 #define IWFFFF_EXCLUDE_MULTIPLE         0x0002  /* exclude multiple - stop only same note from this instrument */
 169
 170 #define IWFFFF_LAYER_NONE               0x0000  /* not layered */
 171 #define IWFFFF_LAYER_ON                 0x0001  /* layered */
 172 #define IWFFFF_LAYER_VELOCITY           0x0002  /* layered by velocity */
 173 #define IWFFFF_LAYER_FREQUENCY          0x0003  /* layered by frequency */
 174
 175 #define IWFFFF_EFFECT_NONE              0
 176 #define IWFFFF_EFFECT_REVERB            1
 177 #define IWFFFF_EFFECT_CHORUS            2
 178 #define IWFFFF_EFFECT_ECHO              3
 179
 180 struct iwffff_instrument {
 181         unsigned short exclusion;
 182         unsigned short layer_type;
 183         unsigned short exclusion_group; /* 0 - none, 1-65535 */
 184
 185         unsigned char effect1;          /* effect 1 */
 186         unsigned char effect1_depth;    /* 0-127 */
 187         unsigned char effect2;          /* effect 2 */
 188         unsigned char effect2_depth;    /* 0-127 */
 189
 190         struct iwffff_layer *layer;             /* first layer */
 191 };
 192
 193 /*
 194  *
 195  *    Kernel <-> user space
 196  *    Hardware (CPU) independent section
 197  *
 198  *    * = zero or more
 199  *    + = one or more
 200  *
 201  *    iwffff_xinstrument                IWFFFF_STRU_INSTR
 202  *      +iwffff_xlayer                  IWFFFF_STRU_LAYER
 203  *        *iwffff_xenv_record           IWFFFF_STRU_ENV_RECT (tremolo)
 204  *        *iwffff_xenv_record           IWFFFF_STRU_EVN_RECT (vibrato)
 205  *          +iwffff_xwave               IWFFFF_STRU_WAVE
 206  *
 207  */
 208
 209 #define IWFFFF_STRU_WAVE        __cpu_to_be32(('W'<<24)|('A'<<16)|('V'<<8)|'E')
 210 #define IWFFFF_STRU_ENV_RECP    __cpu_to_be32(('E'<<24)|('N'<<16)|('R'<<8)|'P')
 211 #define IWFFFF_STRU_ENV_RECV    __cpu_to_be32(('E'<<24)|('N'<<16)|('R'<<8)|'V')
 212 #define IWFFFF_STRU_LAYER       __cpu_to_be32(('L'<<24)|('A'<<16)|('Y'<<8)|'R')
 213 #define IWFFFF_STRU_INSTR       __cpu_to_be32(('I'<<24)|('N'<<16)|('S'<<8)|'T')
 214
 215 /*
 216  *  Wavetable definitions
 217  */
 218
 219 struct iwffff_xwave {
 220         __u32 stype;                    /* structure type */
 221
 222         __u32 share_id[4];              /* share id - zero = no sharing */
 223
 224         __u32 format;                   /* wave format */
 225         __u32 offset;                   /* offset to ROM (address) */
 226
 227         __u32 size;                     /* size of waveform in samples */
 228         __u32 start;                    /* start offset in samples * 16 (lowest 4 bits - fraction) */
 229         __u32 loop_start;               /* bits loop start offset in samples * 16 (lowest 4 bits - fraction) */
 230         __u32 loop_end;                 /* loop start offset in samples * 16 (lowest 4 bits - fraction) */
 231         __u16 loop_repeat;              /* loop repeat - 0 = forever */
 232         __u32 sample_ratio;             /* sample ratio (44100 * 1024 / rate) */
 233         __u8 attenuation;               /* 0 - 127 (no corresponding midi controller) */
 234         __u8 low_note;                  /* lower frequency range for this waveform */
 235         __u8 high_note;                 /* higher frequency range for this waveform */
 236         __u8 pad;
 237 };
 238
 239 /*
 240  *  Layer
 241  */
 242
 243 struct iwffff_xlfo {
 244         __u16 freq;                     /* (0-2047) 0.01Hz - 21.5Hz */
 245         __s16 depth;                    /* volume +- (0-255) 0.48675dB/step */
 246         __s16 sweep;                    /* 0 - 950 deciseconds */
 247         __u8 shape;                     /* see to ULTRA_IW_LFO_SHAPE_XXXX */
 248         __u8 delay;                     /* 0 - 255 deciseconds */
 249 };
 250
 251 struct iwffff_xenv_point {
 252         __u16 offset;
 253         __u16 rate;
 254 };
 255
 256 struct iwffff_xenv_record {
 257         __u32 stype;
 258         __u16 nattack;
 259         __u16 nrelease;
 260         __u16 sustain_offset;
 261         __u16 sustain_rate;
 262         __u16 release_rate;
 263         __u8 hirange;
 264         __u8 pad;
 265         /* points are stored here.. */
 266         /* count of points = nattack + nrelease */
 267 };
 268
 269 struct iwffff_xenv {
 270         __u8 flags;
 271         __u8 mode;
 272         __u8 index;
 273         __u8 pad;
 274 };
 275
 276 struct iwffff_xlayer {
 277         __u32 stype;
 278         __u8 flags;
 279         __u8 velocity_mode;
 280         __u8 layer_event;
 281         __u8 low_range;                 /* range for layer based */
 282         __u8 high_range;                /* on either velocity or frequency */
 283         __u8 pan;                       /* pan offset from CC1 (0 left - 127 right) */
 284         __u8 pan_freq_scale;            /* position based on frequency (0-127) */
 285         __u8 attenuation;               /* 0-127 (no corresponding midi controller) */
 286         struct iwffff_xlfo tremolo;             /* tremolo effect */
 287         struct iwffff_xlfo vibrato;             /* vibrato effect */
 288         __u16 freq_scale;               /* 0-2048, 1024 is equal to semitone scaling */
 289         __u8 freq_center;               /* center for keyboard frequency scaling */
 290         __u8 pad;
 291         struct iwffff_xenv penv;                /* pitch envelope */
 292         struct iwffff_xenv venv;                /* volume envelope */
 293 };
 294
 295 /*
 296  *  Instrument
 297  */
 298
 299 struct iwffff_xinstrument {
 300         __u32 stype;
 301
 302         __u16 exclusion;
 303         __u16 layer_type;
 304         __u16 exclusion_group;          /* 0 - none, 1-65535 */
 305
 306         __u8 effect1;                   /* effect 1 */
 307         __u8 effect1_depth;             /* 0-127 */
 308         __u8 effect2;                   /* effect 2 */
 309         __u8 effect2_depth;             /* 0-127 */
 310 };
 311
 312 /*
 313  *  ROM support
 314  *    InterWave ROMs are Little-Endian (x86)
 315  */
 316
 317 #define IWFFFF_ROM_HDR_SIZE     512
 318
 319 struct iwffff_rom_header {
 320         __u8 iwave[8];
 321         __u8 revision;
 322         __u8 series_number;
 323         __u8 series_name[16];
 324         __u8 date[10];
 325         __u16 vendor_revision_major;
 326         __u16 vendor_revision_minor;
 327         __u32 rom_size;
 328         __u8 copyright[128];
 329         __u8 vendor_name[64];
 330         __u8 description[128];
 331 };
 332
 333 /*
 334  *  Instrument info
 335  */
 336
 337 #define IWFFFF_INFO_LFO_VIBRATO         (1<<0)
 338 #define IWFFFF_INFO_LFO_VIBRATO_SHAPE   (1<<1)
 339 #define IWFFFF_INFO_LFO_TREMOLO         (1<<2)
 340 #define IWFFFF_INFO_LFO_TREMOLO_SHAPE   (1<<3)
 341
 342 struct iwffff_info {
 343         unsigned int format;            /* supported format bits */
 344         unsigned int effects;           /* supported effects (1 << IWFFFF_EFFECT*) */
 345         unsigned int lfos;              /* LFO effects */
 346         unsigned int max8_len;          /* maximum 8-bit wave length */
 347         unsigned int max16_len;         /* maximum 16-bit wave length */
 348 };
 349
 350 #ifdef __KERNEL__
 351
 352 #include "seq_instr.h"
 353
 354 struct snd_iwffff_ops {
 355         void *private_data;
 356         int (*info)(void *private_data, struct iwffff_info *info);
 357         int (*put_sample)(void *private_data, struct iwffff_wave *wave,
 358                           char __user *data, long len, int atomic);
 359         int (*get_sample)(void *private_data, struct iwffff_wave *wave,
 360                           char __user *data, long len, int atomic);
 361         int (*remove_sample)(void *private_data, struct iwffff_wave *wave,
 362                              int atomic);
 363         void (*notify)(void *private_data, struct snd_seq_kinstr *instr, int what);
 364         struct snd_seq_kinstr_ops kops;
 365 };
 366
 367 int snd_seq_iwffff_init(struct snd_iwffff_ops *ops,
 368                         void *private_data,
 369                         struct snd_seq_kinstr_ops *next);
 370
 371 #endif
 372
 373 /* typedefs for compatibility to user-space */
 374 typedef struct iwffff_xwave iwffff_xwave_t;
 375 typedef struct iwffff_xlfo iwffff_xlfo_t;
 376 typedef struct iwffff_xenv_point iwffff_xenv_point_t;
 377 typedef struct iwffff_xenv_record iwffff_xenv_record_t;
 378 typedef struct iwffff_xenv iwffff_xenv_t;
 379 typedef struct iwffff_xlayer iwffff_xlayer_t;
 380 typedef struct iwffff_xinstrument iwffff_xinstrument_t;
 381 typedef struct iwffff_rom_header iwffff_rom_header_t;
 382 typedef struct iwffff_info iwffff_info_t;
 383
 384 #endif /* __SOUND_AINSTR_IW_H */