xref: /openbmc/linux/include/sound/gus.h (revision 7effbd18)
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 */
621