linux/include/sound/gus.h
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   1#ifndef __SOUND_GUS_H
   2#define __SOUND_GUS_H
   3
   4/*
   5 *  Global structures used for GUS part of ALSA driver
   6 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   7 *
   8 *
   9 *   This program is free software; you can redistribute it and/or modify
  10 *   it under the terms of the GNU General Public License as published by
  11 *   the Free Software Foundation; either version 2 of the License, or
  12 *   (at your option) any later version.
  13 *
  14 *   This program is distributed in the hope that it will be useful,
  15 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 *   GNU General Public License for more details.
  18 *
  19 *   You should have received a copy of the GNU General Public License
  20 *   along with this program; if not, write to the Free Software
  21 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  22 *
  23 */
  24
  25#include <sound/pcm.h>
  26#include <sound/rawmidi.h>
  27#include <sound/timer.h>
  28#include <sound/seq_midi_emul.h>
  29#include <sound/seq_device.h>
  30#include <asm/io.h>
  31
  32/* IO ports */
  33
  34#define GUSP(gus, x)                    ((gus)->gf1.port + SNDRV_g_u_s_##x)
  35
  36#define SNDRV_g_u_s_MIDICTRL            (0x320-0x220)
  37#define SNDRV_g_u_s_MIDISTAT            (0x320-0x220)
  38#define SNDRV_g_u_s_MIDIDATA            (0x321-0x220)
  39
  40#define SNDRV_g_u_s_GF1PAGE             (0x322-0x220)
  41#define SNDRV_g_u_s_GF1REGSEL           (0x323-0x220)
  42#define SNDRV_g_u_s_GF1DATALOW          (0x324-0x220)
  43#define SNDRV_g_u_s_GF1DATAHIGH         (0x325-0x220)
  44#define SNDRV_g_u_s_IRQSTAT             (0x226-0x220)
  45#define SNDRV_g_u_s_TIMERCNTRL          (0x228-0x220)
  46#define SNDRV_g_u_s_TIMERDATA           (0x229-0x220)
  47#define SNDRV_g_u_s_DRAM                (0x327-0x220)
  48#define SNDRV_g_u_s_MIXCNTRLREG         (0x220-0x220)
  49#define SNDRV_g_u_s_IRQDMACNTRLREG      (0x22b-0x220)
  50#define SNDRV_g_u_s_REGCNTRLS           (0x22f-0x220)
  51#define SNDRV_g_u_s_BOARDVERSION        (0x726-0x220)
  52#define SNDRV_g_u_s_MIXCNTRLPORT        (0x726-0x220)
  53#define SNDRV_g_u_s_IVER                (0x325-0x220)
  54#define SNDRV_g_u_s_MIXDATAPORT         (0x326-0x220)
  55#define SNDRV_g_u_s_MAXCNTRLPORT        (0x326-0x220)
  56
  57/* GF1 registers */
  58
  59/* global registers */
  60#define SNDRV_GF1_GB_ACTIVE_VOICES              0x0e
  61#define SNDRV_GF1_GB_VOICES_IRQ                 0x0f
  62#define SNDRV_GF1_GB_GLOBAL_MODE                0x19
  63#define SNDRV_GF1_GW_LFO_BASE                   0x1a
  64#define SNDRV_GF1_GB_VOICES_IRQ_READ            0x1f
  65#define SNDRV_GF1_GB_DRAM_DMA_CONTROL           0x41
  66#define SNDRV_GF1_GW_DRAM_DMA_LOW               0x42
  67#define SNDRV_GF1_GW_DRAM_IO_LOW                0x43
  68#define SNDRV_GF1_GB_DRAM_IO_HIGH               0x44
  69#define SNDRV_GF1_GB_SOUND_BLASTER_CONTROL      0x45
  70#define SNDRV_GF1_GB_ADLIB_TIMER_1              0x46
  71#define SNDRV_GF1_GB_ADLIB_TIMER_2              0x47
  72#define SNDRV_GF1_GB_RECORD_RATE                0x48
  73#define SNDRV_GF1_GB_REC_DMA_CONTROL            0x49
  74#define SNDRV_GF1_GB_JOYSTICK_DAC_LEVEL         0x4b
  75#define SNDRV_GF1_GB_RESET                      0x4c
  76#define SNDRV_GF1_GB_DRAM_DMA_HIGH              0x50
  77#define SNDRV_GF1_GW_DRAM_IO16                  0x51
  78#define SNDRV_GF1_GW_MEMORY_CONFIG              0x52
  79#define SNDRV_GF1_GB_MEMORY_CONTROL             0x53
  80#define SNDRV_GF1_GW_FIFO_RECORD_BASE_ADDR      0x54
  81#define SNDRV_GF1_GW_FIFO_PLAY_BASE_ADDR        0x55
  82#define SNDRV_GF1_GW_FIFO_SIZE                  0x56
  83#define SNDRV_GF1_GW_INTERLEAVE                 0x57
  84#define SNDRV_GF1_GB_COMPATIBILITY              0x59
  85#define SNDRV_GF1_GB_DECODE_CONTROL             0x5a
  86#define SNDRV_GF1_GB_VERSION_NUMBER             0x5b
  87#define SNDRV_GF1_GB_MPU401_CONTROL_A           0x5c
  88#define SNDRV_GF1_GB_MPU401_CONTROL_B           0x5d
  89#define SNDRV_GF1_GB_EMULATION_IRQ              0x60
  90/* voice specific registers */
  91#define SNDRV_GF1_VB_ADDRESS_CONTROL            0x00
  92#define SNDRV_GF1_VW_FREQUENCY                  0x01
  93#define SNDRV_GF1_VW_START_HIGH                 0x02
  94#define SNDRV_GF1_VW_START_LOW                  0x03
  95#define SNDRV_GF1_VA_START                      SNDRV_GF1_VW_START_HIGH
  96#define SNDRV_GF1_VW_END_HIGH                   0x04
  97#define SNDRV_GF1_VW_END_LOW                    0x05
  98#define SNDRV_GF1_VA_END                        SNDRV_GF1_VW_END_HIGH
  99#define SNDRV_GF1_VB_VOLUME_RATE                0x06
 100#define SNDRV_GF1_VB_VOLUME_START               0x07
 101#define SNDRV_GF1_VB_VOLUME_END                 0x08
 102#define SNDRV_GF1_VW_VOLUME                     0x09
 103#define SNDRV_GF1_VW_CURRENT_HIGH               0x0a
 104#define SNDRV_GF1_VW_CURRENT_LOW                0x0b
 105#define SNDRV_GF1_VA_CURRENT                    SNDRV_GF1_VW_CURRENT_HIGH
 106#define SNDRV_GF1_VB_PAN                        0x0c
 107#define SNDRV_GF1_VW_OFFSET_RIGHT               0x0c
 108#define SNDRV_GF1_VB_VOLUME_CONTROL             0x0d
 109#define SNDRV_GF1_VB_UPPER_ADDRESS              0x10
 110#define SNDRV_GF1_VW_EFFECT_HIGH                0x11
 111#define SNDRV_GF1_VW_EFFECT_LOW                 0x12
 112#define SNDRV_GF1_VA_EFFECT                     SNDRV_GF1_VW_EFFECT_HIGH
 113#define SNDRV_GF1_VW_OFFSET_LEFT                0x13
 114#define SNDRV_GF1_VB_ACCUMULATOR                0x14
 115#define SNDRV_GF1_VB_MODE                       0x15
 116#define SNDRV_GF1_VW_EFFECT_VOLUME              0x16
 117#define SNDRV_GF1_VB_FREQUENCY_LFO              0x17
 118#define SNDRV_GF1_VB_VOLUME_LFO                 0x18
 119#define SNDRV_GF1_VW_OFFSET_RIGHT_FINAL         0x1b
 120#define SNDRV_GF1_VW_OFFSET_LEFT_FINAL          0x1c
 121#define SNDRV_GF1_VW_EFFECT_VOLUME_FINAL        0x1d
 122
 123/* ICS registers */
 124
 125#define SNDRV_ICS_MIC_DEV               0
 126#define SNDRV_ICS_LINE_DEV              1
 127#define SNDRV_ICS_CD_DEV                2
 128#define SNDRV_ICS_GF1_DEV               3
 129#define SNDRV_ICS_NONE_DEV              4
 130#define SNDRV_ICS_MASTER_DEV            5
 131
 132/* LFO */
 133
 134#define SNDRV_LFO_TREMOLO               0
 135#define SNDRV_LFO_VIBRATO               1
 136
 137/* misc */
 138
 139#define SNDRV_GF1_DMA_UNSIGNED  0x80
 140#define SNDRV_GF1_DMA_16BIT     0x40
 141#define SNDRV_GF1_DMA_IRQ       0x20
 142#define SNDRV_GF1_DMA_WIDTH16   0x04
 143#define SNDRV_GF1_DMA_READ      0x02    /* read from GUS's DRAM */
 144#define SNDRV_GF1_DMA_ENABLE    0x01
 145
 146/* ramp ranges */
 147
 148#define SNDRV_GF1_ATTEN(x)      (snd_gf1_atten_table[x])
 149#define SNDRV_GF1_MIN_VOLUME    1800
 150#define SNDRV_GF1_MAX_VOLUME    4095
 151#define SNDRV_GF1_MIN_OFFSET    (SNDRV_GF1_MIN_VOLUME>>4)
 152#define SNDRV_GF1_MAX_OFFSET    255
 153#define SNDRV_GF1_MAX_TDEPTH    90
 154
 155/* defines for memory manager */
 156
 157#define SNDRV_GF1_MEM_BLOCK_16BIT       0x0001
 158
 159#define SNDRV_GF1_MEM_OWNER_DRIVER      0x0001
 160#define SNDRV_GF1_MEM_OWNER_WAVE_SIMPLE 0x0002
 161#define SNDRV_GF1_MEM_OWNER_WAVE_GF1    0x0003
 162#define SNDRV_GF1_MEM_OWNER_WAVE_IWFFFF 0x0004
 163
 164/* constants for interrupt handlers */
 165
 166#define SNDRV_GF1_HANDLER_MIDI_OUT      0x00010000
 167#define SNDRV_GF1_HANDLER_MIDI_IN       0x00020000
 168#define SNDRV_GF1_HANDLER_TIMER1        0x00040000
 169#define SNDRV_GF1_HANDLER_TIMER2        0x00080000
 170#define SNDRV_GF1_HANDLER_VOICE         0x00100000
 171#define SNDRV_GF1_HANDLER_DMA_WRITE     0x00200000
 172#define SNDRV_GF1_HANDLER_DMA_READ      0x00400000
 173#define SNDRV_GF1_HANDLER_ALL           (0xffff0000&~SNDRV_GF1_HANDLER_VOICE)
 174
 175/* constants for DMA flags */
 176
 177#define SNDRV_GF1_DMA_TRIGGER           1
 178
 179/* --- */
 180
 181struct snd_gus_card;
 182
 183/* GF1 specific structure */
 184
 185struct snd_gf1_bank_info {
 186        unsigned int address;
 187        unsigned int size;
 188};
 189
 190struct snd_gf1_mem_block {
 191        unsigned short flags;   /* flags - SNDRV_GF1_MEM_BLOCK_XXXX */
 192        unsigned short owner;   /* owner - SNDRV_GF1_MEM_OWNER_XXXX */
 193        unsigned int share;     /* share count */
 194        unsigned int share_id[4]; /* share ID */
 195        unsigned int ptr;
 196        unsigned int size;
 197        char *name;
 198        struct snd_gf1_mem_block *next;
 199        struct snd_gf1_mem_block *prev;
 200};
 201
 202struct snd_gf1_mem {
 203        struct snd_gf1_bank_info banks_8[4];
 204        struct snd_gf1_bank_info banks_16[4];
 205        struct snd_gf1_mem_block *first;
 206        struct snd_gf1_mem_block *last;
 207        struct mutex memory_mutex;
 208};
 209
 210struct snd_gf1_dma_block {
 211        void *buffer;           /* buffer in computer's RAM */
 212        unsigned long buf_addr; /* buffer address */
 213        unsigned int addr;      /* address in onboard memory */
 214        unsigned int count;     /* count in bytes */
 215        unsigned int cmd;       /* DMA command (format) */
 216        void (*ack)(struct snd_gus_card * gus, void *private_data);
 217        void *private_data;
 218        struct snd_gf1_dma_block *next;
 219};
 220
 221struct snd_gus_port {
 222        struct snd_midi_channel_set * chset;
 223        struct snd_gus_card * gus;
 224        int mode;               /* operation mode */
 225        int client;             /* sequencer client number */
 226        int port;               /* sequencer port number */
 227        unsigned int midi_has_voices: 1;
 228};
 229
 230struct snd_gus_voice;
 231
 232#define SNDRV_GF1_VOICE_TYPE_PCM        0
 233#define SNDRV_GF1_VOICE_TYPE_SYNTH      1
 234#define SNDRV_GF1_VOICE_TYPE_MIDI       2
 235
 236#define SNDRV_GF1_VFLG_RUNNING          (1<<0)
 237#define SNDRV_GF1_VFLG_EFFECT_TIMER1    (1<<1)
 238#define SNDRV_GF1_VFLG_PAN              (1<<2)
 239
 240enum snd_gus_volume_state {
 241        VENV_BEFORE,
 242        VENV_ATTACK,
 243        VENV_SUSTAIN,
 244        VENV_RELEASE,
 245        VENV_DONE,
 246        VENV_VOLUME
 247};
 248
 249struct snd_gus_voice {
 250        int number;
 251        unsigned int use: 1,
 252            pcm: 1,
 253            synth:1,
 254            midi: 1;
 255        unsigned int flags;
 256        unsigned char client;
 257        unsigned char port;
 258        unsigned char index;
 259        unsigned char pad;
 260        
 261#ifdef CONFIG_SND_DEBUG
 262        unsigned int interrupt_stat_wave;
 263        unsigned int interrupt_stat_volume;
 264#endif
 265        void (*handler_wave) (struct snd_gus_card * gus, struct snd_gus_voice * voice);
 266        void (*handler_volume) (struct snd_gus_card * gus, struct snd_gus_voice * voice);
 267        void (*handler_effect) (struct snd_gus_card * gus, struct snd_gus_voice * voice);
 268        void (*volume_change) (struct snd_gus_card * gus);
 269
 270        struct snd_gus_sample_ops *sample_ops;
 271
 272        /* running status / registers */
 273
 274        unsigned short fc_register;
 275        unsigned short fc_lfo;
 276        unsigned short gf1_volume;
 277        unsigned char control;
 278        unsigned char mode;
 279        unsigned char gf1_pan;
 280        unsigned char effect_accumulator;
 281        unsigned char volume_control;
 282        unsigned char venv_value_next;
 283        enum snd_gus_volume_state venv_state;
 284        enum snd_gus_volume_state venv_state_prev;
 285        unsigned short vlo;
 286        unsigned short vro;
 287        unsigned short gf1_effect_volume;
 288        
 289        /* --- */
 290
 291        void *private_data;
 292        void (*private_free)(struct snd_gus_voice *voice);
 293};
 294
 295struct snd_gf1 {
 296
 297        unsigned int enh_mode:1,        /* enhanced mode (GFA1) */
 298                     hw_lfo:1,          /* use hardware LFO */
 299                     sw_lfo:1,          /* use software LFO */
 300                     effect:1;          /* use effect voices */
 301
 302        unsigned long port;             /* port of GF1 chip */
 303        struct resource *res_port1;
 304        struct resource *res_port2;
 305        int irq;                        /* IRQ number */
 306        int dma1;                       /* DMA1 number */
 307        int dma2;                       /* DMA2 number */
 308        unsigned int memory;            /* GUS's DRAM size in bytes */
 309        unsigned int rom_memory;        /* GUS's ROM size in bytes */
 310        unsigned int rom_present;       /* bitmask */
 311        unsigned int rom_banks;         /* GUS's ROM banks */
 312
 313        struct snd_gf1_mem mem_alloc;
 314
 315        /* registers */
 316        unsigned short reg_page;
 317        unsigned short reg_regsel;
 318        unsigned short reg_data8;
 319        unsigned short reg_data16;
 320        unsigned short reg_irqstat;
 321        unsigned short reg_dram;
 322        unsigned short reg_timerctrl;
 323        unsigned short reg_timerdata;
 324        unsigned char ics_regs[6][2];
 325        /* --------- */
 326
 327        unsigned char active_voices;    /* active voices */
 328        unsigned char active_voice;     /* selected voice (GF1PAGE register) */
 329
 330        struct snd_gus_voice voices[32];        /* GF1 voices */
 331
 332        unsigned int default_voice_address;
 333
 334        unsigned short playback_freq;   /* GF1 playback (mixing) frequency */
 335        unsigned short mode;            /* see to SNDRV_GF1_MODE_XXXX */
 336        unsigned char volume_ramp;
 337        unsigned char smooth_pan;
 338        unsigned char full_range_pan;
 339        unsigned char pad0;
 340
 341        unsigned char *lfos;
 342
 343        /* interrupt handlers */
 344
 345        void (*interrupt_handler_midi_out) (struct snd_gus_card * gus);
 346        void (*interrupt_handler_midi_in) (struct snd_gus_card * gus);
 347        void (*interrupt_handler_timer1) (struct snd_gus_card * gus);
 348        void (*interrupt_handler_timer2) (struct snd_gus_card * gus);
 349        void (*interrupt_handler_dma_write) (struct snd_gus_card * gus);
 350        void (*interrupt_handler_dma_read) (struct snd_gus_card * gus);
 351
 352#ifdef CONFIG_SND_DEBUG
 353        unsigned int interrupt_stat_midi_out;
 354        unsigned int interrupt_stat_midi_in;
 355        unsigned int interrupt_stat_timer1;
 356        unsigned int interrupt_stat_timer2;
 357        unsigned int interrupt_stat_dma_write;
 358        unsigned int interrupt_stat_dma_read;
 359        unsigned int interrupt_stat_voice_lost;
 360#endif
 361
 362        /* synthesizer */
 363
 364        int seq_client;
 365        struct snd_gus_port seq_ports[4];
 366
 367        /* timer */
 368
 369        unsigned short timer_enabled;
 370        struct snd_timer *timer1;
 371        struct snd_timer *timer2;
 372
 373        /* midi */
 374
 375        unsigned short uart_cmd;
 376        unsigned int uart_framing;
 377        unsigned int uart_overrun;
 378
 379        /* dma operations */
 380
 381        unsigned int dma_flags;
 382        unsigned int dma_shared;
 383        struct snd_gf1_dma_block *dma_data_pcm;
 384        struct snd_gf1_dma_block *dma_data_pcm_last;
 385        struct snd_gf1_dma_block *dma_data_synth;
 386        struct snd_gf1_dma_block *dma_data_synth_last;
 387        void (*dma_ack)(struct snd_gus_card * gus, void *private_data);
 388        void *dma_private_data;
 389
 390        /* pcm */
 391        int pcm_channels;
 392        int pcm_alloc_voices;
 393        unsigned short pcm_volume_level_left;
 394        unsigned short pcm_volume_level_right;
 395        unsigned short pcm_volume_level_left1;
 396        unsigned short pcm_volume_level_right1;
 397                                
 398        unsigned char pcm_rcntrl_reg;
 399        unsigned char pad_end;
 400};
 401
 402/* main structure for GUS card */
 403
 404struct snd_gus_card {
 405        struct snd_card *card;
 406
 407        unsigned int
 408         initialized: 1,                /* resources were initialized */
 409         equal_irq:1,                   /* GF1 and CODEC shares IRQ (GUS MAX only) */
 410         equal_dma:1,                   /* if dma channels are equal (not valid for daughter board) */
 411         ics_flag:1,                    /* have we ICS mixer chip */
 412         ics_flipped:1,                 /* ICS mixer have flipped some channels? */
 413         codec_flag:1,                  /* have we CODEC chip? */
 414         max_flag:1,                    /* have we GUS MAX card? */
 415         max_ctrl_flag:1,               /* have we original GUS MAX card? */
 416         daughter_flag:1,               /* have we daughter board? */
 417         interwave:1,                   /* hey - we have InterWave card */
 418         ess_flag:1,                    /* ESS chip found... GUS Extreme */
 419         ace_flag:1,                    /* GUS ACE detected */
 420         uart_enable:1;                 /* enable MIDI UART */
 421        unsigned short revision;        /* revision of chip */
 422        unsigned short max_cntrl_val;   /* GUS MAX control value */
 423        unsigned short mix_cntrl_reg;   /* mixer control register */
 424        unsigned short joystick_dac;    /* joystick DAC level */
 425        int timer_dev;                  /* timer device */
 426
 427        struct snd_gf1 gf1;     /* gf1 specific variables */
 428        struct snd_pcm *pcm;
 429        struct snd_pcm_substream *pcm_cap_substream;
 430        unsigned int c_dma_size;
 431        unsigned int c_period_size;
 432        unsigned int c_pos;
 433
 434        struct snd_rawmidi *midi_uart;
 435        struct snd_rawmidi_substream *midi_substream_output;
 436        struct snd_rawmidi_substream *midi_substream_input;
 437
 438        spinlock_t reg_lock;
 439        spinlock_t voice_alloc;
 440        spinlock_t active_voice_lock;
 441        spinlock_t event_lock;
 442        spinlock_t dma_lock;
 443        spinlock_t pcm_volume_level_lock;
 444        spinlock_t uart_cmd_lock;
 445        struct mutex dma_mutex;
 446        struct mutex register_mutex;
 447};
 448
 449/* I/O functions for GF1/InterWave chip - gus_io.c */
 450
 451static inline void snd_gf1_select_voice(struct snd_gus_card * gus, int voice)
 452{
 453        unsigned long flags;
 454
 455        spin_lock_irqsave(&gus->active_voice_lock, flags);
 456        if (voice != gus->gf1.active_voice) {
 457                gus->gf1.active_voice = voice;
 458                outb(voice, GUSP(gus, GF1PAGE));
 459        }
 460        spin_unlock_irqrestore(&gus->active_voice_lock, flags);
 461}
 462
 463static inline void snd_gf1_uart_cmd(struct snd_gus_card * gus, unsigned char b)
 464{
 465        outb(gus->gf1.uart_cmd = b, GUSP(gus, MIDICTRL));
 466}
 467
 468static inline unsigned char snd_gf1_uart_stat(struct snd_gus_card * gus)
 469{
 470        return inb(GUSP(gus, MIDISTAT));
 471}
 472
 473static inline void snd_gf1_uart_put(struct snd_gus_card * gus, unsigned char b)
 474{
 475        outb(b, GUSP(gus, MIDIDATA));
 476}
 477
 478static inline unsigned char snd_gf1_uart_get(struct snd_gus_card * gus)
 479{
 480        return inb(GUSP(gus, MIDIDATA));
 481}
 482
 483extern void snd_gf1_delay(struct snd_gus_card * gus);
 484
 485extern void snd_gf1_ctrl_stop(struct snd_gus_card * gus, unsigned char reg);
 486
 487extern void snd_gf1_write8(struct snd_gus_card * gus, unsigned char reg, unsigned char data);
 488extern unsigned char snd_gf1_look8(struct snd_gus_card * gus, unsigned char reg);
 489static inline unsigned char snd_gf1_read8(struct snd_gus_card * gus, unsigned char reg)
 490{
 491        return snd_gf1_look8(gus, reg | 0x80);
 492}
 493extern void snd_gf1_write16(struct snd_gus_card * gus, unsigned char reg, unsigned int data);
 494extern unsigned short snd_gf1_look16(struct snd_gus_card * gus, unsigned char reg);
 495static inline unsigned short snd_gf1_read16(struct snd_gus_card * gus, unsigned char reg)
 496{
 497        return snd_gf1_look16(gus, reg | 0x80);
 498}
 499extern void snd_gf1_adlib_write(struct snd_gus_card * gus, unsigned char reg, unsigned char data);
 500extern void snd_gf1_dram_addr(struct snd_gus_card * gus, unsigned int addr);
 501extern void snd_gf1_poke(struct snd_gus_card * gus, unsigned int addr, unsigned char data);
 502extern unsigned char snd_gf1_peek(struct snd_gus_card * gus, unsigned int addr);
 503extern void snd_gf1_write_addr(struct snd_gus_card * gus, unsigned char reg, unsigned int addr, short w_16bit);
 504extern unsigned int snd_gf1_read_addr(struct snd_gus_card * gus, unsigned char reg, short w_16bit);
 505extern void snd_gf1_i_ctrl_stop(struct snd_gus_card * gus, unsigned char reg);
 506extern void snd_gf1_i_write8(struct snd_gus_card * gus, unsigned char reg, unsigned char data);
 507extern unsigned char snd_gf1_i_look8(struct snd_gus_card * gus, unsigned char reg);
 508extern void snd_gf1_i_write16(struct snd_gus_card * gus, unsigned char reg, unsigned int data);
 509static inline unsigned char snd_gf1_i_read8(struct snd_gus_card * gus, unsigned char reg)
 510{
 511        return snd_gf1_i_look8(gus, reg | 0x80);
 512}
 513extern unsigned short snd_gf1_i_look16(struct snd_gus_card * gus, unsigned char reg);
 514static inline unsigned short snd_gf1_i_read16(struct snd_gus_card * gus, unsigned char reg)
 515{
 516        return snd_gf1_i_look16(gus, reg | 0x80);
 517}
 518
 519extern void snd_gf1_select_active_voices(struct snd_gus_card * gus);
 520
 521/* gus_lfo.c */
 522
 523struct _SND_IW_LFO_PROGRAM {
 524        unsigned short freq_and_control;
 525        unsigned char depth_final;
 526        unsigned char depth_inc;
 527        unsigned short twave;
 528        unsigned short depth;
 529};
 530
 531#if 0
 532extern irqreturn_t snd_gf1_lfo_effect_interrupt(struct snd_gus_card * gus, snd_gf1_voice_t * voice);
 533#endif
 534extern void snd_gf1_lfo_init(struct snd_gus_card * gus);
 535extern void snd_gf1_lfo_done(struct snd_gus_card * gus);
 536extern void snd_gf1_lfo_program(struct snd_gus_card * gus, int voice, int lfo_type, struct _SND_IW_LFO_PROGRAM *program);
 537extern void snd_gf1_lfo_enable(struct snd_gus_card * gus, int voice, int lfo_type);
 538extern void snd_gf1_lfo_disable(struct snd_gus_card * gus, int voice, int lfo_type);
 539extern void snd_gf1_lfo_change_freq(struct snd_gus_card * gus, int voice, int lfo_type, int freq);
 540extern void snd_gf1_lfo_change_depth(struct snd_gus_card * gus, int voice, int lfo_type, int depth);
 541extern void snd_gf1_lfo_setup(struct snd_gus_card * gus, int voice, int lfo_type, int freq, int current_depth, int depth, int sweep, int shape);
 542extern void snd_gf1_lfo_shutdown(struct snd_gus_card * gus, int voice, int lfo_type);
 543#if 0
 544extern void snd_gf1_lfo_command(struct snd_gus_card * gus, int voice, unsigned char *command);
 545#endif
 546
 547/* gus_mem.c */
 548
 549void snd_gf1_mem_lock(struct snd_gf1_mem * alloc, int xup);
 550int snd_gf1_mem_xfree(struct snd_gf1_mem * alloc, struct snd_gf1_mem_block * block);
 551struct snd_gf1_mem_block *snd_gf1_mem_alloc(struct snd_gf1_mem * alloc, int owner,
 552                                       char *name, int size, int w_16,
 553                                       int align, unsigned int *share_id);
 554int snd_gf1_mem_free(struct snd_gf1_mem * alloc, unsigned int address);
 555int snd_gf1_mem_free_owner(struct snd_gf1_mem * alloc, int owner);
 556int snd_gf1_mem_init(struct snd_gus_card * gus);
 557int snd_gf1_mem_done(struct snd_gus_card * gus);
 558
 559/* gus_mem_proc.c */
 560
 561int snd_gf1_mem_proc_init(struct snd_gus_card * gus);
 562
 563/* gus_dma.c */
 564
 565int snd_gf1_dma_init(struct snd_gus_card * gus);
 566int snd_gf1_dma_done(struct snd_gus_card * gus);
 567int snd_gf1_dma_transfer_block(struct snd_gus_card * gus,
 568                               struct snd_gf1_dma_block * block,
 569                               int atomic,
 570                               int synth);
 571
 572/* gus_volume.c */
 573
 574unsigned short snd_gf1_lvol_to_gvol_raw(unsigned int vol);
 575unsigned short snd_gf1_translate_freq(struct snd_gus_card * gus, unsigned int freq2);
 576
 577/* gus_reset.c */
 578
 579void snd_gf1_set_default_handlers(struct snd_gus_card * gus, unsigned int what);
 580void snd_gf1_smart_stop_voice(struct snd_gus_card * gus, unsigned short voice);
 581void snd_gf1_stop_voice(struct snd_gus_card * gus, unsigned short voice);
 582void snd_gf1_stop_voices(struct snd_gus_card * gus, unsigned short v_min, unsigned short v_max);
 583struct snd_gus_voice *snd_gf1_alloc_voice(struct snd_gus_card * gus, int type, int client, int port);
 584void snd_gf1_free_voice(struct snd_gus_card * gus, struct snd_gus_voice *voice);
 585int snd_gf1_start(struct snd_gus_card * gus);
 586int snd_gf1_stop(struct snd_gus_card * gus);
 587
 588/* gus_mixer.c */
 589
 590int snd_gf1_new_mixer(struct snd_gus_card * gus);
 591
 592/* gus_pcm.c */
 593
 594int snd_gf1_pcm_new(struct snd_gus_card * gus, int pcm_dev, int control_index, struct snd_pcm ** rpcm);
 595
 596#ifdef CONFIG_SND_DEBUG
 597extern void snd_gf1_print_voice_registers(struct snd_gus_card * gus);
 598#endif
 599
 600/* gus.c */
 601
 602int snd_gus_use_inc(struct snd_gus_card * gus);
 603void snd_gus_use_dec(struct snd_gus_card * gus);
 604int snd_gus_create(struct snd_card *card,
 605                   unsigned long port,
 606                   int irq, int dma1, int dma2,
 607                   int timer_dev,
 608                   int voices,
 609                   int pcm_channels,
 610                   int effect,
 611                   struct snd_gus_card ** rgus);
 612int snd_gus_initialize(struct snd_gus_card * gus);
 613
 614/* gus_irq.c */
 615
 616irqreturn_t snd_gus_interrupt(int irq, void *dev_id);
 617#ifdef CONFIG_SND_DEBUG
 618void snd_gus_irq_profile_init(struct snd_gus_card *gus);
 619#endif
 620
 621/* gus_uart.c */
 622
 623int snd_gf1_rawmidi_new(struct snd_gus_card * gus, int device, struct snd_rawmidi **rrawmidi);
 624
 625/* gus_dram.c */
 626int snd_gus_dram_write(struct snd_gus_card *gus, char __user *ptr,
 627                       unsigned int addr, unsigned int size);
 628int snd_gus_dram_read(struct snd_gus_card *gus, char __user *ptr,
 629                      unsigned int addr, unsigned int size, int rom);
 630
 631#endif /* __SOUND_GUS_H */
 632
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