Root/include/sound/gus.h

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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