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TOMOYO Linux Cross Reference
Linux/include/sound/gus.h

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  1 #ifndef __SOUND_GUS_H
  2 #define __SOUND_GUS_H
  3 
  4 /*
  5  *  Global structures used for GUS part of ALSA driver
  6  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
  7  *
  8  *
  9  *   This program is free software; you can redistribute it and/or modify
 10  *   it under the terms of the GNU General Public License as published by
 11  *   the Free Software Foundation; either version 2 of the License, or
 12  *   (at your option) any later version.
 13  *
 14  *   This program is distributed in the hope that it will be useful,
 15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 17  *   GNU General Public License for more details.
 18  *
 19  *   You should have received a copy of the GNU General Public License
 20  *   along with this program; if not, write to the Free Software
 21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 22  *
 23  */
 24 
 25 #include <sound/pcm.h>
 26 #include <sound/rawmidi.h>
 27 #include <sound/timer.h>
 28 #include <sound/seq_midi_emul.h>
 29 #include <sound/seq_device.h>
 30 #include <linux/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);
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);
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 */
632 

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