include/sound/gus.h

   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
 166 struct snd_gus_card;
 167
 168 /* GF1 specific structure */
 169
 170 struct snd_gf1_bank_info {
 171         unsigned int address;
 172         unsigned int size;
 173 };
 174
 175 struct 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
 187 struct 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
 195 struct 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
 206 struct 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
 215 struct 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
 225 enum snd_gus_volume_state {
 226         VENV_BEFORE,
 227         VENV_ATTACK,
 228         VENV_SUSTAIN,
 229         VENV_RELEASE,
 230         VENV_DONE,
 231         VENV_VOLUME
 232 };
 233
 234 struct 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
 280 struct 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
 389 struct 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
 436 static 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
 448 static 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
 453 static inline unsigned char snd_gf1_uart_stat(struct snd_gus_card * gus)
 454 {
 455         return inb(GUSP(gus, MIDISTAT));
 456 }
 457
 458 static inline void snd_gf1_uart_put(struct snd_gus_card * gus, unsigned char b)
 459 {
 460         outb(b, GUSP(gus, MIDIDATA));
 461 }
 462
 463 static inline unsigned char snd_gf1_uart_get(struct snd_gus_card * gus)
 464 {
 465         return inb(GUSP(gus, MIDIDATA));
 466 }
 467
 468 extern void snd_gf1_delay(struct snd_gus_card * gus);
 469
 470 extern void snd_gf1_ctrl_stop(struct snd_gus_card * gus, unsigned char reg);
 471
 472 extern void snd_gf1_write8(struct snd_gus_card * gus, unsigned char reg, unsigned char data);
 473 extern unsigned char snd_gf1_look8(struct snd_gus_card * gus, unsigned char reg);
 474 static inline unsigned char snd_gf1_read8(struct snd_gus_card * gus, unsigned char reg)
 475 {
 476         return snd_gf1_look8(gus, reg | 0x80);
 477 }
 478 extern void snd_gf1_write16(struct snd_gus_card * gus, unsigned char reg, unsigned int data);
 479 extern unsigned short snd_gf1_look16(struct snd_gus_card * gus, unsigned char reg);
 480 static inline unsigned short snd_gf1_read16(struct snd_gus_card * gus, unsigned char reg)
 481 {
 482         return snd_gf1_look16(gus, reg | 0x80);
 483 }
 484 extern void snd_gf1_adlib_write(struct snd_gus_card * gus, unsigned char reg, unsigned char data);
 485 extern void snd_gf1_dram_addr(struct snd_gus_card * gus, unsigned int addr);
 486 extern void snd_gf1_poke(struct snd_gus_card * gus, unsigned int addr, unsigned char data);
 487 extern unsigned char snd_gf1_peek(struct snd_gus_card * gus, unsigned int addr);
 488 extern void snd_gf1_write_addr(struct snd_gus_card * gus, unsigned char reg, unsigned int addr, short w_16bit);
 489 extern unsigned int snd_gf1_read_addr(struct snd_gus_card * gus, unsigned char reg, short w_16bit);
 490 extern void snd_gf1_i_ctrl_stop(struct snd_gus_card * gus, unsigned char reg);
 491 extern void snd_gf1_i_write8(struct snd_gus_card * gus, unsigned char reg, unsigned char data);
 492 extern unsigned char snd_gf1_i_look8(struct snd_gus_card * gus, unsigned char reg);
 493 extern void snd_gf1_i_write16(struct snd_gus_card * gus, unsigned char reg, unsigned int data);
 494 static 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 }
 498 extern unsigned short snd_gf1_i_look16(struct snd_gus_card * gus, unsigned char reg);
 499 static 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
 504 extern void snd_gf1_select_active_voices(struct snd_gus_card * gus);
 505
 506 /* gus_lfo.c */
 507
 508 struct _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
 517 extern irqreturn_t snd_gf1_lfo_effect_interrupt(struct snd_gus_card * gus, snd_gf1_voice_t * voice);
 518 #endif
 519 extern void snd_gf1_lfo_init(struct snd_gus_card * gus);
 520 extern void snd_gf1_lfo_done(struct snd_gus_card * gus);
 521 extern void snd_gf1_lfo_program(struct snd_gus_card * gus, int voice, int lfo_type, struct _SND_IW_LFO_PROGRAM *program);
 522 extern void snd_gf1_lfo_enable(struct snd_gus_card * gus, int voice, int lfo_type);
 523 extern void snd_gf1_lfo_disable(struct snd_gus_card * gus, int voice, int lfo_type);
 524 extern void snd_gf1_lfo_change_freq(struct snd_gus_card * gus, int voice, int lfo_type, int freq);
 525 extern void snd_gf1_lfo_change_depth(struct snd_gus_card * gus, int voice, int lfo_type, int depth);
 526 extern 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);
 527 extern void snd_gf1_lfo_shutdown(struct snd_gus_card * gus, int voice, int lfo_type);
 528 #if 0
 529 extern void snd_gf1_lfo_command(struct snd_gus_card * gus, int voice, unsigned char *command);
 530 #endif
 531
 532 /* gus_mem.c */
 533
 534 void snd_gf1_mem_lock(struct snd_gf1_mem * alloc, int xup);
 535 int snd_gf1_mem_xfree(struct snd_gf1_mem * alloc, struct snd_gf1_mem_block * block);
 536 struct 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);
 539 int snd_gf1_mem_free(struct snd_gf1_mem * alloc, unsigned int address);
 540 int snd_gf1_mem_free_owner(struct snd_gf1_mem * alloc, int owner);
 541 int snd_gf1_mem_init(struct snd_gus_card * gus);
 542 int snd_gf1_mem_done(struct snd_gus_card * gus);
 543
 544 /* gus_mem_proc.c */
 545
 546 int snd_gf1_mem_proc_init(struct snd_gus_card * gus);
 547
 548 /* gus_dma.c */
 549
 550 int snd_gf1_dma_init(struct snd_gus_card * gus);
 551 int snd_gf1_dma_done(struct snd_gus_card * gus);
 552 int 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
 559 unsigned short snd_gf1_lvol_to_gvol_raw(unsigned int vol);
 560 unsigned short snd_gf1_translate_freq(struct snd_gus_card * gus, unsigned int freq2);
 561
 562 /* gus_reset.c */
 563
 564 void snd_gf1_set_default_handlers(struct snd_gus_card * gus, unsigned int what);
 565 void snd_gf1_smart_stop_voice(struct snd_gus_card * gus, unsigned short voice);
 566 void snd_gf1_stop_voice(struct snd_gus_card * gus, unsigned short voice);
 567 void snd_gf1_stop_voices(struct snd_gus_card * gus, unsigned short v_min, unsigned short v_max);
 568 struct snd_gus_voice *snd_gf1_alloc_voice(struct snd_gus_card * gus, int type, int client, int port);
 569 void snd_gf1_free_voice(struct snd_gus_card * gus, struct snd_gus_voice *voice);
 570 int snd_gf1_start(struct snd_gus_card * gus);
 571 int snd_gf1_stop(struct snd_gus_card * gus);
 572
 573 /* gus_mixer.c */
 574
 575 int snd_gf1_new_mixer(struct snd_gus_card * gus);
 576
 577 /* gus_pcm.c */
 578
 579 int snd_gf1_pcm_new(struct snd_gus_card *gus, int pcm_dev, int control_index);
 580
 581 #ifdef CONFIG_SND_DEBUG
 582 extern void snd_gf1_print_voice_registers(struct snd_gus_card * gus);
 583 #endif
 584
 585 /* gus.c */
 586
 587 int snd_gus_use_inc(struct snd_gus_card * gus);
 588 void snd_gus_use_dec(struct snd_gus_card * gus);
 589 int 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);
 597 int snd_gus_initialize(struct snd_gus_card * gus);
 598
 599 /* gus_irq.c */
 600
 601 irqreturn_t snd_gus_interrupt(int irq, void *dev_id);
 602 #ifdef CONFIG_SND_DEBUG
 603 void snd_gus_irq_profile_init(struct snd_gus_card *gus);
 604 #endif
 605
 606 /* gus_uart.c */
 607
 608 int snd_gf1_rawmidi_new(struct snd_gus_card *gus, int device);
 609
 610 /* gus_dram.c */
 611 int snd_gus_dram_write(struct snd_gus_card *gus, char __user *ptr,
 612                        unsigned int addr, unsigned int size);
 613 int snd_gus_dram_read(struct snd_gus_card *gus, char __user *ptr,
 614                       unsigned int addr, unsigned int size, int rom);
 615
 616 /* gus_timer.c */
 617 void snd_gf1_timers_init(struct snd_gus_card *gus);
 618 void snd_gf1_timers_done(struct snd_gus_card *gus);
 619
 620 #endif /* __SOUND_GUS_H */