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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 <[email protected]>
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 
181 struct snd_gus_card;
182 
183 /* GF1 specific structure */
184 
185 struct snd_gf1_bank_info {
186  unsigned int address;
187  unsigned int size;
188 };
189 
190 struct 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 
202 struct 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 
210 struct 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 
221 struct 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 
230 struct 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 
240 enum snd_gus_volume_state {
241  VENV_BEFORE,
242  VENV_ATTACK,
243  VENV_SUSTAIN,
244  VENV_RELEASE,
245  VENV_DONE,
246  VENV_VOLUME
247 };
248 
249 struct 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 
295 struct 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 
404 struct 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 
451 static 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 
463 static 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 
468 static inline unsigned char snd_gf1_uart_stat(struct snd_gus_card * gus)
469 {
470  return inb(GUSP(gus, MIDISTAT));
471 }
472 
473 static inline void snd_gf1_uart_put(struct snd_gus_card * gus, unsigned char b)
474 {
475  outb(b, GUSP(gus, MIDIDATA));
476 }
477 
478 static inline unsigned char snd_gf1_uart_get(struct snd_gus_card * gus)
479 {
480  return inb(GUSP(gus, MIDIDATA));
481 }
482 
483 extern void snd_gf1_delay(struct snd_gus_card * gus);
484 
485 extern void snd_gf1_ctrl_stop(struct snd_gus_card * gus, unsigned char reg);
486 
487 extern void snd_gf1_write8(struct snd_gus_card * gus, unsigned char reg, unsigned char data);
488 extern unsigned char snd_gf1_look8(struct snd_gus_card * gus, unsigned char reg);
489 static inline unsigned char snd_gf1_read8(struct snd_gus_card * gus, unsigned char reg)
490 {
491  return snd_gf1_look8(gus, reg | 0x80);
492 }
493 extern void snd_gf1_write16(struct snd_gus_card * gus, unsigned char reg, unsigned int data);
494 extern unsigned short snd_gf1_look16(struct snd_gus_card * gus, unsigned char reg);
495 static inline unsigned short snd_gf1_read16(struct snd_gus_card * gus, unsigned char reg)
496 {
497  return snd_gf1_look16(gus, reg | 0x80);
498 }
499 extern void snd_gf1_adlib_write(struct snd_gus_card * gus, unsigned char reg, unsigned char data);
500 extern void snd_gf1_dram_addr(struct snd_gus_card * gus, unsigned int addr);
501 extern void snd_gf1_poke(struct snd_gus_card * gus, unsigned int addr, unsigned char data);
502 extern unsigned char snd_gf1_peek(struct snd_gus_card * gus, unsigned int addr);
503 extern void snd_gf1_write_addr(struct snd_gus_card * gus, unsigned char reg, unsigned int addr, short w_16bit);
504 extern unsigned int snd_gf1_read_addr(struct snd_gus_card * gus, unsigned char reg, short w_16bit);
505 extern void snd_gf1_i_ctrl_stop(struct snd_gus_card * gus, unsigned char reg);
506 extern void snd_gf1_i_write8(struct snd_gus_card * gus, unsigned char reg, unsigned char data);
507 extern unsigned char snd_gf1_i_look8(struct snd_gus_card * gus, unsigned char reg);
508 extern void snd_gf1_i_write16(struct snd_gus_card * gus, unsigned char reg, unsigned int data);
509 static 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 }
513 extern unsigned short snd_gf1_i_look16(struct snd_gus_card * gus, unsigned char reg);
514 static 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 
519 extern void snd_gf1_select_active_voices(struct snd_gus_card * gus);
520 
521 /* gus_lfo.c */
522 
523 struct _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
532 extern irqreturn_t snd_gf1_lfo_effect_interrupt(struct snd_gus_card * gus, snd_gf1_voice_t * voice);
533 #endif
534 extern void snd_gf1_lfo_init(struct snd_gus_card * gus);
535 extern void snd_gf1_lfo_done(struct snd_gus_card * gus);
536 extern void snd_gf1_lfo_program(struct snd_gus_card * gus, int voice, int lfo_type, struct _SND_IW_LFO_PROGRAM *program);
537 extern void snd_gf1_lfo_enable(struct snd_gus_card * gus, int voice, int lfo_type);
538 extern void snd_gf1_lfo_disable(struct snd_gus_card * gus, int voice, int lfo_type);
539 extern void snd_gf1_lfo_change_freq(struct snd_gus_card * gus, int voice, int lfo_type, int freq);
540 extern void snd_gf1_lfo_change_depth(struct snd_gus_card * gus, int voice, int lfo_type, int depth);
541 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);
542 extern void snd_gf1_lfo_shutdown(struct snd_gus_card * gus, int voice, int lfo_type);
543 #if 0
544 extern void snd_gf1_lfo_command(struct snd_gus_card * gus, int voice, unsigned char *command);
545 #endif
546 
547 /* gus_mem.c */
548 
549 void snd_gf1_mem_lock(struct snd_gf1_mem * alloc, int xup);
550 int snd_gf1_mem_xfree(struct snd_gf1_mem * alloc, struct snd_gf1_mem_block * block);
551 struct 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);
554 int snd_gf1_mem_free(struct snd_gf1_mem * alloc, unsigned int address);
555 int snd_gf1_mem_free_owner(struct snd_gf1_mem * alloc, int owner);
556 int snd_gf1_mem_init(struct snd_gus_card * gus);
557 int snd_gf1_mem_done(struct snd_gus_card * gus);
558 
559 /* gus_mem_proc.c */
560 
561 int snd_gf1_mem_proc_init(struct snd_gus_card * gus);
562 
563 /* gus_dma.c */
564 
565 int snd_gf1_dma_init(struct snd_gus_card * gus);
566 int snd_gf1_dma_done(struct snd_gus_card * gus);
567 int 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 
574 unsigned short snd_gf1_lvol_to_gvol_raw(unsigned int vol);
575 unsigned short snd_gf1_translate_freq(struct snd_gus_card * gus, unsigned int freq2);
576 
577 /* gus_reset.c */
578 
579 void snd_gf1_set_default_handlers(struct snd_gus_card * gus, unsigned int what);
580 void snd_gf1_smart_stop_voice(struct snd_gus_card * gus, unsigned short voice);
581 void snd_gf1_stop_voice(struct snd_gus_card * gus, unsigned short voice);
582 void snd_gf1_stop_voices(struct snd_gus_card * gus, unsigned short v_min, unsigned short v_max);
583 struct snd_gus_voice *snd_gf1_alloc_voice(struct snd_gus_card * gus, int type, int client, int port);
584 void snd_gf1_free_voice(struct snd_gus_card * gus, struct snd_gus_voice *voice);
585 int snd_gf1_start(struct snd_gus_card * gus);
586 int snd_gf1_stop(struct snd_gus_card * gus);
587 
588 /* gus_mixer.c */
589 
590 int snd_gf1_new_mixer(struct snd_gus_card * gus);
591 
592 /* gus_pcm.c */
593 
594 int 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
597 extern void snd_gf1_print_voice_registers(struct snd_gus_card * gus);
598 #endif
599 
600 /* gus.c */
601 
602 int snd_gus_use_inc(struct snd_gus_card * gus);
603 void snd_gus_use_dec(struct snd_gus_card * gus);
604 int 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);
612 int snd_gus_initialize(struct snd_gus_card * gus);
613 
614 /* gus_irq.c */
615 
616 irqreturn_t snd_gus_interrupt(int irq, void *dev_id);
617 #ifdef CONFIG_SND_DEBUG
618 void snd_gus_irq_profile_init(struct snd_gus_card *gus);
619 #endif
620 
621 /* gus_uart.c */
622 
623 int snd_gf1_rawmidi_new(struct snd_gus_card * gus, int device, struct snd_rawmidi **rrawmidi);
624 
625 /* gus_dram.c */
626 int snd_gus_dram_write(struct snd_gus_card *gus, char __user *ptr,
627  unsigned int addr, unsigned int size);
628 int 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 */
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