linux/include/sound/gus.h
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   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2#ifndef __SOUND_GUS_H
   3#define __SOUND_GUS_H
   4
   5/*
   6 *  Global structures used for GUS part of ALSA driver
   7 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   8 */
   9
  10#include <sound/pcm.h>
  11#include <sound/rawmidi.h>
  12#include <sound/timer.h>
  13#include <sound/seq_midi_emul.h>
  14#include <sound/seq_device.h>
  15#include <linux/io.h>
  16
  17/* IO ports */
  18
  19#define GUSP(gus, x)                    ((gus)->gf1.port + SNDRV_g_u_s_##x)
  20
  21#define SNDRV_g_u_s_MIDICTRL            (0x320-0x220)
  22#define SNDRV_g_u_s_MIDISTAT            (0x320-0x220)
  23#define SNDRV_g_u_s_MIDIDATA            (0x321-0x220)
  24
  25#define SNDRV_g_u_s_GF1PAGE             (0x322-0x220)
  26#define SNDRV_g_u_s_GF1REGSEL           (0x323-0x220)
  27#define SNDRV_g_u_s_GF1DATALOW          (0x324-0x220)
  28#define SNDRV_g_u_s_GF1DATAHIGH         (0x325-0x220)
  29#define SNDRV_g_u_s_IRQSTAT             (0x226-0x220)
  30#define SNDRV_g_u_s_TIMERCNTRL          (0x228-0x220)
  31#define SNDRV_g_u_s_TIMERDATA           (0x229-0x220)
  32#define SNDRV_g_u_s_DRAM                (0x327-0x220)
  33#define SNDRV_g_u_s_MIXCNTRLREG         (0x220-0x220)
  34#define SNDRV_g_u_s_IRQDMACNTRLREG      (0x22b-0x220)
  35#define SNDRV_g_u_s_REGCNTRLS           (0x22f-0x220)
  36#define SNDRV_g_u_s_BOARDVERSION        (0x726-0x220)
  37#define SNDRV_g_u_s_MIXCNTRLPORT        (0x726-0x220)
  38#define SNDRV_g_u_s_IVER                (0x325-0x220)
  39#define SNDRV_g_u_s_MIXDATAPORT         (0x326-0x220)
  40#define SNDRV_g_u_s_MAXCNTRLPORT        (0x326-0x220)
  41
  42/* GF1 registers */
  43
  44/* global registers */
  45#define SNDRV_GF1_GB_ACTIVE_VOICES              0x0e
  46#define SNDRV_GF1_GB_VOICES_IRQ                 0x0f
  47#define SNDRV_GF1_GB_GLOBAL_MODE                0x19
  48#define SNDRV_GF1_GW_LFO_BASE                   0x1a
  49#define SNDRV_GF1_GB_VOICES_IRQ_READ            0x1f
  50#define SNDRV_GF1_GB_DRAM_DMA_CONTROL           0x41
  51#define SNDRV_GF1_GW_DRAM_DMA_LOW               0x42
  52#define SNDRV_GF1_GW_DRAM_IO_LOW                0x43
  53#define SNDRV_GF1_GB_DRAM_IO_HIGH               0x44
  54#define SNDRV_GF1_GB_SOUND_BLASTER_CONTROL      0x45
  55#define SNDRV_GF1_GB_ADLIB_TIMER_1              0x46
  56#define SNDRV_GF1_GB_ADLIB_TIMER_2              0x47
  57#define SNDRV_GF1_GB_RECORD_RATE                0x48
  58#define SNDRV_GF1_GB_REC_DMA_CONTROL            0x49
  59#define SNDRV_GF1_GB_JOYSTICK_DAC_LEVEL         0x4b
  60#define SNDRV_GF1_GB_RESET                      0x4c
  61#define SNDRV_GF1_GB_DRAM_DMA_HIGH              0x50
  62#define SNDRV_GF1_GW_DRAM_IO16                  0x51
  63#define SNDRV_GF1_GW_MEMORY_CONFIG              0x52
  64#define SNDRV_GF1_GB_MEMORY_CONTROL             0x53
  65#define SNDRV_GF1_GW_FIFO_RECORD_BASE_ADDR      0x54
  66#define SNDRV_GF1_GW_FIFO_PLAY_BASE_ADDR        0x55
  67#define SNDRV_GF1_GW_FIFO_SIZE                  0x56
  68#define SNDRV_GF1_GW_INTERLEAVE                 0x57
  69#define SNDRV_GF1_GB_COMPATIBILITY              0x59
  70#define SNDRV_GF1_GB_DECODE_CONTROL             0x5a
  71#define SNDRV_GF1_GB_VERSION_NUMBER             0x5b
  72#define SNDRV_GF1_GB_MPU401_CONTROL_A           0x5c
  73#define SNDRV_GF1_GB_MPU401_CONTROL_B           0x5d
  74#define SNDRV_GF1_GB_EMULATION_IRQ              0x60
  75/* voice specific registers */
  76#define SNDRV_GF1_VB_ADDRESS_CONTROL            0x00
  77#define SNDRV_GF1_VW_FREQUENCY                  0x01
  78#define SNDRV_GF1_VW_START_HIGH                 0x02
  79#define SNDRV_GF1_VW_START_LOW                  0x03
  80#define SNDRV_GF1_VA_START                      SNDRV_GF1_VW_START_HIGH
  81#define SNDRV_GF1_VW_END_HIGH                   0x04
  82#define SNDRV_GF1_VW_END_LOW                    0x05
  83#define SNDRV_GF1_VA_END                        SNDRV_GF1_VW_END_HIGH
  84#define SNDRV_GF1_VB_VOLUME_RATE                0x06
  85#define SNDRV_GF1_VB_VOLUME_START               0x07
  86#define SNDRV_GF1_VB_VOLUME_END                 0x08
  87#define SNDRV_GF1_VW_VOLUME                     0x09
  88#define SNDRV_GF1_VW_CURRENT_HIGH               0x0a
  89#define SNDRV_GF1_VW_CURRENT_LOW                0x0b
  90#define SNDRV_GF1_VA_CURRENT                    SNDRV_GF1_VW_CURRENT_HIGH
  91#define SNDRV_GF1_VB_PAN                        0x0c
  92#define SNDRV_GF1_VW_OFFSET_RIGHT               0x0c
  93#define SNDRV_GF1_VB_VOLUME_CONTROL             0x0d
  94#define SNDRV_GF1_VB_UPPER_ADDRESS              0x10
  95#define SNDRV_GF1_VW_EFFECT_HIGH                0x11
  96#define SNDRV_GF1_VW_EFFECT_LOW                 0x12
  97#define SNDRV_GF1_VA_EFFECT                     SNDRV_GF1_VW_EFFECT_HIGH
  98#define SNDRV_GF1_VW_OFFSET_LEFT                0x13
  99#define SNDRV_GF1_VB_ACCUMULATOR                0x14
 100#define SNDRV_GF1_VB_MODE                       0x15
 101#define SNDRV_GF1_VW_EFFECT_VOLUME              0x16
 102#define SNDRV_GF1_VB_FREQUENCY_LFO              0x17
 103#define SNDRV_GF1_VB_VOLUME_LFO                 0x18
 104#define SNDRV_GF1_VW_OFFSET_RIGHT_FINAL         0x1b
 105#define SNDRV_GF1_VW_OFFSET_LEFT_FINAL          0x1c
 106#define SNDRV_GF1_VW_EFFECT_VOLUME_FINAL        0x1d
 107
 108/* ICS registers */
 109
 110#define SNDRV_ICS_MIC_DEV               0
 111#define SNDRV_ICS_LINE_DEV              1
 112#define SNDRV_ICS_CD_DEV                2
 113#define SNDRV_ICS_GF1_DEV               3
 114#define SNDRV_ICS_NONE_DEV              4
 115#define SNDRV_ICS_MASTER_DEV            5
 116
 117/* LFO */
 118
 119#define SNDRV_LFO_TREMOLO               0
 120#define SNDRV_LFO_VIBRATO               1
 121
 122/* misc */
 123
 124#define SNDRV_GF1_DMA_UNSIGNED  0x80
 125#define SNDRV_GF1_DMA_16BIT     0x40
 126#define SNDRV_GF1_DMA_IRQ       0x20
 127#define SNDRV_GF1_DMA_WIDTH16   0x04
 128#define SNDRV_GF1_DMA_READ      0x02    /* read from GUS's DRAM */
 129#define SNDRV_GF1_DMA_ENABLE    0x01
 130
 131/* ramp ranges */
 132
 133#define SNDRV_GF1_ATTEN(x)      (snd_gf1_atten_table[x])
 134#define SNDRV_GF1_MIN_VOLUME    1800
 135#define SNDRV_GF1_MAX_VOLUME    4095
 136#define SNDRV_GF1_MIN_OFFSET    (SNDRV_GF1_MIN_VOLUME>>4)
 137#define SNDRV_GF1_MAX_OFFSET    255
 138#define SNDRV_GF1_MAX_TDEPTH    90
 139
 140/* defines for memory manager */
 141
 142#define SNDRV_GF1_MEM_BLOCK_16BIT       0x0001
 143
 144#define SNDRV_GF1_MEM_OWNER_DRIVER      0x0001
 145#define SNDRV_GF1_MEM_OWNER_WAVE_SIMPLE 0x0002
 146#define SNDRV_GF1_MEM_OWNER_WAVE_GF1    0x0003
 147#define SNDRV_GF1_MEM_OWNER_WAVE_IWFFFF 0x0004
 148
 149/* constants for interrupt handlers */
 150
 151#define SNDRV_GF1_HANDLER_MIDI_OUT      0x00010000
 152#define SNDRV_GF1_HANDLER_MIDI_IN       0x00020000
 153#define SNDRV_GF1_HANDLER_TIMER1        0x00040000
 154#define SNDRV_GF1_HANDLER_TIMER2        0x00080000
 155#define SNDRV_GF1_HANDLER_VOICE         0x00100000
 156#define SNDRV_GF1_HANDLER_DMA_WRITE     0x00200000
 157#define SNDRV_GF1_HANDLER_DMA_READ      0x00400000
 158#define SNDRV_GF1_HANDLER_ALL           (0xffff0000&~SNDRV_GF1_HANDLER_VOICE)
 159
 160/* constants for DMA flags */
 161
 162#define SNDRV_GF1_DMA_TRIGGER           1
 163
 164/* --- */
 165
 166struct snd_gus_card;
 167
 168/* GF1 specific structure */
 169
 170struct snd_gf1_bank_info {
 171        unsigned int address;
 172        unsigned int size;
 173};
 174
 175struct snd_gf1_mem_block {
 176        unsigned short flags;   /* flags - SNDRV_GF1_MEM_BLOCK_XXXX */
 177        unsigned short owner;   /* owner - SNDRV_GF1_MEM_OWNER_XXXX */
 178        unsigned int share;     /* share count */
 179        unsigned int share_id[4]; /* share ID */
 180        unsigned int ptr;
 181        unsigned int size;
 182        char *name;
 183        struct snd_gf1_mem_block *next;
 184        struct snd_gf1_mem_block *prev;
 185};
 186
 187struct snd_gf1_mem {
 188        struct snd_gf1_bank_info banks_8[4];
 189        struct snd_gf1_bank_info banks_16[4];
 190        struct snd_gf1_mem_block *first;
 191        struct snd_gf1_mem_block *last;
 192        struct mutex memory_mutex;
 193};
 194
 195struct snd_gf1_dma_block {
 196        void *buffer;           /* buffer in computer's RAM */
 197        unsigned long buf_addr; /* buffer address */
 198        unsigned int addr;      /* address in onboard memory */
 199        unsigned int count;     /* count in bytes */
 200        unsigned int cmd;       /* DMA command (format) */
 201        void (*ack)(struct snd_gus_card * gus, void *private_data);
 202        void *private_data;
 203        struct snd_gf1_dma_block *next;
 204};
 205
 206struct snd_gus_port {
 207        struct snd_midi_channel_set * chset;
 208        struct snd_gus_card * gus;
 209        int mode;               /* operation mode */
 210        int client;             /* sequencer client number */
 211        int port;               /* sequencer port number */
 212        unsigned int midi_has_voices: 1;
 213};
 214
 215struct snd_gus_voice;
 216
 217#define SNDRV_GF1_VOICE_TYPE_PCM        0
 218#define SNDRV_GF1_VOICE_TYPE_SYNTH      1
 219#define SNDRV_GF1_VOICE_TYPE_MIDI       2
 220
 221#define SNDRV_GF1_VFLG_RUNNING          (1<<0)
 222#define SNDRV_GF1_VFLG_EFFECT_TIMER1    (1<<1)
 223#define SNDRV_GF1_VFLG_PAN              (1<<2)
 224
 225enum snd_gus_volume_state {
 226        VENV_BEFORE,
 227        VENV_ATTACK,
 228        VENV_SUSTAIN,
 229        VENV_RELEASE,
 230        VENV_DONE,
 231        VENV_VOLUME
 232};
 233
 234struct snd_gus_voice {
 235        int number;
 236        unsigned int use: 1,
 237            pcm: 1,
 238            synth:1,
 239            midi: 1;
 240        unsigned int flags;
 241        unsigned char client;
 242        unsigned char port;
 243        unsigned char index;
 244        unsigned char pad;
 245        
 246#ifdef CONFIG_SND_DEBUG
 247        unsigned int interrupt_stat_wave;
 248        unsigned int interrupt_stat_volume;
 249#endif
 250        void (*handler_wave) (struct snd_gus_card * gus, struct snd_gus_voice * voice);
 251        void (*handler_volume) (struct snd_gus_card * gus, struct snd_gus_voice * voice);
 252        void (*handler_effect) (struct snd_gus_card * gus, struct snd_gus_voice * voice);
 253        void (*volume_change) (struct snd_gus_card * gus);
 254
 255        struct snd_gus_sample_ops *sample_ops;
 256
 257        /* running status / registers */
 258
 259        unsigned short fc_register;
 260        unsigned short fc_lfo;
 261        unsigned short gf1_volume;
 262        unsigned char control;
 263        unsigned char mode;
 264        unsigned char gf1_pan;
 265        unsigned char effect_accumulator;
 266        unsigned char volume_control;
 267        unsigned char venv_value_next;
 268        enum snd_gus_volume_state venv_state;
 269        enum snd_gus_volume_state venv_state_prev;
 270        unsigned short vlo;
 271        unsigned short vro;
 272        unsigned short gf1_effect_volume;
 273        
 274        /* --- */
 275
 276        void *private_data;
 277        void (*private_free)(struct snd_gus_voice *voice);
 278};
 279
 280struct snd_gf1 {
 281
 282        unsigned int enh_mode:1,        /* enhanced mode (GFA1) */
 283                     hw_lfo:1,          /* use hardware LFO */
 284                     sw_lfo:1,          /* use software LFO */
 285                     effect:1;          /* use effect voices */
 286
 287        unsigned long port;             /* port of GF1 chip */
 288        struct resource *res_port1;
 289        struct resource *res_port2;
 290        int irq;                        /* IRQ number */
 291        int dma1;                       /* DMA1 number */
 292        int dma2;                       /* DMA2 number */
 293        unsigned int memory;            /* GUS's DRAM size in bytes */
 294        unsigned int rom_memory;        /* GUS's ROM size in bytes */
 295        unsigned int rom_present;       /* bitmask */
 296        unsigned int rom_banks;         /* GUS's ROM banks */
 297
 298        struct snd_gf1_mem mem_alloc;
 299
 300        /* registers */
 301        unsigned short reg_page;
 302        unsigned short reg_regsel;
 303        unsigned short reg_data8;
 304        unsigned short reg_data16;
 305        unsigned short reg_irqstat;
 306        unsigned short reg_dram;
 307        unsigned short reg_timerctrl;
 308        unsigned short reg_timerdata;
 309        unsigned char ics_regs[6][2];
 310        /* --------- */
 311
 312        unsigned char active_voices;    /* active voices */
 313        unsigned char active_voice;     /* selected voice (GF1PAGE register) */
 314
 315        struct snd_gus_voice voices[32];        /* GF1 voices */
 316
 317        unsigned int default_voice_address;
 318
 319        unsigned short playback_freq;   /* GF1 playback (mixing) frequency */
 320        unsigned short mode;            /* see to SNDRV_GF1_MODE_XXXX */
 321        unsigned char volume_ramp;
 322        unsigned char smooth_pan;
 323        unsigned char full_range_pan;
 324        unsigned char pad0;
 325
 326        unsigned char *lfos;
 327
 328        /* interrupt handlers */
 329
 330        void (*interrupt_handler_midi_out) (struct snd_gus_card * gus);
 331        void (*interrupt_handler_midi_in) (struct snd_gus_card * gus);
 332        void (*interrupt_handler_timer1) (struct snd_gus_card * gus);
 333        void (*interrupt_handler_timer2) (struct snd_gus_card * gus);
 334        void (*interrupt_handler_dma_write) (struct snd_gus_card * gus);
 335        void (*interrupt_handler_dma_read) (struct snd_gus_card * gus);
 336
 337#ifdef CONFIG_SND_DEBUG
 338        unsigned int interrupt_stat_midi_out;
 339        unsigned int interrupt_stat_midi_in;
 340        unsigned int interrupt_stat_timer1;
 341        unsigned int interrupt_stat_timer2;
 342        unsigned int interrupt_stat_dma_write;
 343        unsigned int interrupt_stat_dma_read;
 344        unsigned int interrupt_stat_voice_lost;
 345#endif
 346
 347        /* synthesizer */
 348
 349        int seq_client;
 350        struct snd_gus_port seq_ports[4];
 351
 352        /* timer */
 353
 354        unsigned short timer_enabled;
 355        struct snd_timer *timer1;
 356        struct snd_timer *timer2;
 357
 358        /* midi */
 359
 360        unsigned short uart_cmd;
 361        unsigned int uart_framing;
 362        unsigned int uart_overrun;
 363
 364        /* dma operations */
 365
 366        unsigned int dma_flags;
 367        unsigned int dma_shared;
 368        struct snd_gf1_dma_block *dma_data_pcm;
 369        struct snd_gf1_dma_block *dma_data_pcm_last;
 370        struct snd_gf1_dma_block *dma_data_synth;
 371        struct snd_gf1_dma_block *dma_data_synth_last;
 372        void (*dma_ack)(struct snd_gus_card * gus, void *private_data);
 373        void *dma_private_data;
 374
 375        /* pcm */
 376        int pcm_channels;
 377        int pcm_alloc_voices;
 378        unsigned short pcm_volume_level_left;
 379        unsigned short pcm_volume_level_right;
 380        unsigned short pcm_volume_level_left1;
 381        unsigned short pcm_volume_level_right1;
 382                                
 383        unsigned char pcm_rcntrl_reg;
 384        unsigned char pad_end;
 385};
 386
 387/* main structure for GUS card */
 388
 389struct snd_gus_card {
 390        struct snd_card *card;
 391
 392        unsigned int
 393         initialized: 1,                /* resources were initialized */
 394         equal_irq:1,                   /* GF1 and CODEC shares IRQ (GUS MAX only) */
 395         equal_dma:1,                   /* if dma channels are equal (not valid for daughter board) */
 396         ics_flag:1,                    /* have we ICS mixer chip */
 397         ics_flipped:1,                 /* ICS mixer have flipped some channels? */
 398         codec_flag:1,                  /* have we CODEC chip? */
 399         max_flag:1,                    /* have we GUS MAX card? */
 400         max_ctrl_flag:1,               /* have we original GUS MAX card? */
 401         daughter_flag:1,               /* have we daughter board? */
 402         interwave:1,                   /* hey - we have InterWave card */
 403         ess_flag:1,                    /* ESS chip found... GUS Extreme */
 404         ace_flag:1,                    /* GUS ACE detected */
 405         uart_enable:1;                 /* enable MIDI UART */
 406        unsigned short revision;        /* revision of chip */
 407        unsigned short max_cntrl_val;   /* GUS MAX control value */
 408        unsigned short mix_cntrl_reg;   /* mixer control register */
 409        unsigned short joystick_dac;    /* joystick DAC level */
 410        int timer_dev;                  /* timer device */
 411
 412        struct snd_gf1 gf1;     /* gf1 specific variables */
 413        struct snd_pcm *pcm;
 414        struct snd_pcm_substream *pcm_cap_substream;
 415        unsigned int c_dma_size;
 416        unsigned int c_period_size;
 417        unsigned int c_pos;
 418
 419        struct snd_rawmidi *midi_uart;
 420        struct snd_rawmidi_substream *midi_substream_output;
 421        struct snd_rawmidi_substream *midi_substream_input;
 422
 423        spinlock_t reg_lock;
 424        spinlock_t voice_alloc;
 425        spinlock_t active_voice_lock;
 426        spinlock_t event_lock;
 427        spinlock_t dma_lock;
 428        spinlock_t pcm_volume_level_lock;
 429        spinlock_t uart_cmd_lock;
 430        struct mutex dma_mutex;
 431        struct mutex register_mutex;
 432};
 433
 434/* I/O functions for GF1/InterWave chip - gus_io.c */
 435
 436static inline void snd_gf1_select_voice(struct snd_gus_card * gus, int voice)
 437{
 438        unsigned long flags;
 439
 440        spin_lock_irqsave(&gus->active_voice_lock, flags);
 441        if (voice != gus->gf1.active_voice) {
 442                gus->gf1.active_voice = voice;
 443                outb(voice, GUSP(gus, GF1PAGE));
 444        }
 445        spin_unlock_irqrestore(&gus->active_voice_lock, flags);
 446}
 447
 448static inline void snd_gf1_uart_cmd(struct snd_gus_card * gus, unsigned char b)
 449{
 450        outb(gus->gf1.uart_cmd = b, GUSP(gus, MIDICTRL));
 451}
 452
 453static inline unsigned char snd_gf1_uart_stat(struct snd_gus_card * gus)
 454{
 455        return inb(GUSP(gus, MIDISTAT));
 456}
 457
 458static inline void snd_gf1_uart_put(struct snd_gus_card * gus, unsigned char b)
 459{
 460        outb(b, GUSP(gus, MIDIDATA));
 461}
 462
 463static inline unsigned char snd_gf1_uart_get(struct snd_gus_card * gus)
 464{
 465        return inb(GUSP(gus, MIDIDATA));
 466}
 467
 468extern void snd_gf1_delay(struct snd_gus_card * gus);
 469
 470extern void snd_gf1_ctrl_stop(struct snd_gus_card * gus, unsigned char reg);
 471
 472extern void snd_gf1_write8(struct snd_gus_card * gus, unsigned char reg, unsigned char data);
 473extern unsigned char snd_gf1_look8(struct snd_gus_card * gus, unsigned char reg);
 474static inline unsigned char snd_gf1_read8(struct snd_gus_card * gus, unsigned char reg)
 475{
 476        return snd_gf1_look8(gus, reg | 0x80);
 477}
 478extern void snd_gf1_write16(struct snd_gus_card * gus, unsigned char reg, unsigned int data);
 479extern unsigned short snd_gf1_look16(struct snd_gus_card * gus, unsigned char reg);
 480static inline unsigned short snd_gf1_read16(struct snd_gus_card * gus, unsigned char reg)
 481{
 482        return snd_gf1_look16(gus, reg | 0x80);
 483}
 484extern void snd_gf1_adlib_write(struct snd_gus_card * gus, unsigned char reg, unsigned char data);
 485extern void snd_gf1_dram_addr(struct snd_gus_card * gus, unsigned int addr);
 486extern void snd_gf1_poke(struct snd_gus_card * gus, unsigned int addr, unsigned char data);
 487extern unsigned char snd_gf1_peek(struct snd_gus_card * gus, unsigned int addr);
 488extern void snd_gf1_write_addr(struct snd_gus_card * gus, unsigned char reg, unsigned int addr, short w_16bit);
 489extern unsigned int snd_gf1_read_addr(struct snd_gus_card * gus, unsigned char reg, short w_16bit);
 490extern void snd_gf1_i_ctrl_stop(struct snd_gus_card * gus, unsigned char reg);
 491extern void snd_gf1_i_write8(struct snd_gus_card * gus, unsigned char reg, unsigned char data);
 492extern unsigned char snd_gf1_i_look8(struct snd_gus_card * gus, unsigned char reg);
 493extern void snd_gf1_i_write16(struct snd_gus_card * gus, unsigned char reg, unsigned int data);
 494static inline unsigned char snd_gf1_i_read8(struct snd_gus_card * gus, unsigned char reg)
 495{
 496        return snd_gf1_i_look8(gus, reg | 0x80);
 497}
 498extern unsigned short snd_gf1_i_look16(struct snd_gus_card * gus, unsigned char reg);
 499static inline unsigned short snd_gf1_i_read16(struct snd_gus_card * gus, unsigned char reg)
 500{
 501        return snd_gf1_i_look16(gus, reg | 0x80);
 502}
 503
 504extern void snd_gf1_select_active_voices(struct snd_gus_card * gus);
 505
 506/* gus_lfo.c */
 507
 508struct _SND_IW_LFO_PROGRAM {
 509        unsigned short freq_and_control;
 510        unsigned char depth_final;
 511        unsigned char depth_inc;
 512        unsigned short twave;
 513        unsigned short depth;
 514};
 515
 516#if 0
 517extern irqreturn_t snd_gf1_lfo_effect_interrupt(struct snd_gus_card * gus, snd_gf1_voice_t * voice);
 518#endif
 519extern void snd_gf1_lfo_init(struct snd_gus_card * gus);
 520extern void snd_gf1_lfo_done(struct snd_gus_card * gus);
 521extern void snd_gf1_lfo_program(struct snd_gus_card * gus, int voice, int lfo_type, struct _SND_IW_LFO_PROGRAM *program);
 522extern void snd_gf1_lfo_enable(struct snd_gus_card * gus, int voice, int lfo_type);
 523extern void snd_gf1_lfo_disable(struct snd_gus_card * gus, int voice, int lfo_type);
 524extern void snd_gf1_lfo_change_freq(struct snd_gus_card * gus, int voice, int lfo_type, int freq);
 525extern void snd_gf1_lfo_change_depth(struct snd_gus_card * gus, int voice, int lfo_type, int depth);
 526extern 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);
 527extern void snd_gf1_lfo_shutdown(struct snd_gus_card * gus, int voice, int lfo_type);
 528#if 0
 529extern void snd_gf1_lfo_command(struct snd_gus_card * gus, int voice, unsigned char *command);
 530#endif
 531
 532/* gus_mem.c */
 533
 534void snd_gf1_mem_lock(struct snd_gf1_mem * alloc, int xup);
 535int snd_gf1_mem_xfree(struct snd_gf1_mem * alloc, struct snd_gf1_mem_block * block);
 536struct snd_gf1_mem_block *snd_gf1_mem_alloc(struct snd_gf1_mem * alloc, int owner,
 537                                       char *name, int size, int w_16,
 538                                       int align, unsigned int *share_id);
 539int snd_gf1_mem_free(struct snd_gf1_mem * alloc, unsigned int address);
 540int snd_gf1_mem_free_owner(struct snd_gf1_mem * alloc, int owner);
 541int snd_gf1_mem_init(struct snd_gus_card * gus);
 542int snd_gf1_mem_done(struct snd_gus_card * gus);
 543
 544/* gus_mem_proc.c */
 545
 546int snd_gf1_mem_proc_init(struct snd_gus_card * gus);
 547
 548/* gus_dma.c */
 549
 550int snd_gf1_dma_init(struct snd_gus_card * gus);
 551int snd_gf1_dma_done(struct snd_gus_card * gus);
 552int snd_gf1_dma_transfer_block(struct snd_gus_card * gus,
 553                               struct snd_gf1_dma_block * block,
 554                               int atomic,
 555                               int synth);
 556
 557/* gus_volume.c */
 558
 559unsigned short snd_gf1_lvol_to_gvol_raw(unsigned int vol);
 560unsigned short snd_gf1_translate_freq(struct snd_gus_card * gus, unsigned int freq2);
 561
 562/* gus_reset.c */
 563
 564void snd_gf1_set_default_handlers(struct snd_gus_card * gus, unsigned int what);
 565void snd_gf1_smart_stop_voice(struct snd_gus_card * gus, unsigned short voice);
 566void snd_gf1_stop_voice(struct snd_gus_card * gus, unsigned short voice);
 567void snd_gf1_stop_voices(struct snd_gus_card * gus, unsigned short v_min, unsigned short v_max);
 568struct snd_gus_voice *snd_gf1_alloc_voice(struct snd_gus_card * gus, int type, int client, int port);
 569void snd_gf1_free_voice(struct snd_gus_card * gus, struct snd_gus_voice *voice);
 570int snd_gf1_start(struct snd_gus_card * gus);
 571int snd_gf1_stop(struct snd_gus_card * gus);
 572
 573/* gus_mixer.c */
 574
 575int snd_gf1_new_mixer(struct snd_gus_card * gus);
 576
 577/* gus_pcm.c */
 578
 579int snd_gf1_pcm_new(struct snd_gus_card *gus, int pcm_dev, int control_index);
 580
 581#ifdef CONFIG_SND_DEBUG
 582extern void snd_gf1_print_voice_registers(struct snd_gus_card * gus);
 583#endif
 584
 585/* gus.c */
 586
 587int snd_gus_use_inc(struct snd_gus_card * gus);
 588void snd_gus_use_dec(struct snd_gus_card * gus);
 589int snd_gus_create(struct snd_card *card,
 590                   unsigned long port,
 591                   int irq, int dma1, int dma2,
 592                   int timer_dev,
 593                   int voices,
 594                   int pcm_channels,
 595                   int effect,
 596                   struct snd_gus_card ** rgus);
 597int snd_gus_initialize(struct snd_gus_card * gus);
 598
 599/* gus_irq.c */
 600
 601irqreturn_t snd_gus_interrupt(int irq, void *dev_id);
 602#ifdef CONFIG_SND_DEBUG
 603void snd_gus_irq_profile_init(struct snd_gus_card *gus);
 604#endif
 605
 606/* gus_uart.c */
 607
 608int snd_gf1_rawmidi_new(struct snd_gus_card *gus, int device);
 609
 610/* gus_dram.c */
 611int snd_gus_dram_write(struct snd_gus_card *gus, char __user *ptr,
 612                       unsigned int addr, unsigned int size);
 613int snd_gus_dram_read(struct snd_gus_card *gus, char __user *ptr,
 614                      unsigned int addr, unsigned int size, int rom);
 615
 616#endif /* __SOUND_GUS_H */
 617
Hosted by Missing Link Electronics. The original LXR software by the LXR community, this experimental version by lxr@linux.no.