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1da177e4 LT |
1 | #ifndef __SOUND_OPL3_H |
2 | #define __SOUND_OPL3_H | |
3 | ||
4 | /* | |
5 | * Definitions of the OPL-3 registers. | |
6 | * | |
c1017a4c | 7 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz>, |
1da177e4 LT |
8 | * Hannu Savolainen 1993-1996 |
9 | * | |
10 | * | |
11 | * The OPL-3 mode is switched on by writing 0x01, to the offset 5 | |
12 | * of the right side. | |
13 | * | |
14 | * Another special register at the right side is at offset 4. It contains | |
15 | * a bit mask defining which voices are used as 4 OP voices. | |
16 | * | |
17 | * The percussive mode is implemented in the left side only. | |
18 | * | |
19 | * With the above exceptions the both sides can be operated independently. | |
20 | * | |
21 | * A 4 OP voice can be created by setting the corresponding | |
22 | * bit at offset 4 of the right side. | |
23 | * | |
24 | * For example setting the rightmost bit (0x01) changes the | |
25 | * first voice on the right side to the 4 OP mode. The fourth | |
26 | * voice is made inaccessible. | |
27 | * | |
28 | * If a voice is set to the 2 OP mode, it works like 2 OP modes | |
29 | * of the original YM3812 (AdLib). In addition the voice can | |
30 | * be connected the left, right or both stereo channels. It can | |
31 | * even be left unconnected. This works with 4 OP voices also. | |
32 | * | |
33 | * The stereo connection bits are located in the FEEDBACK_CONNECTION | |
34 | * register of the voice (0xC0-0xC8). In 4 OP voices these bits are | |
35 | * in the second half of the voice. | |
36 | * | |
37 | * | |
38 | * This program is free software; you can redistribute it and/or modify | |
39 | * it under the terms of the GNU General Public License as published by | |
40 | * the Free Software Foundation; either version 2 of the License, or | |
41 | * (at your option) any later version. | |
42 | * | |
43 | * This program is distributed in the hope that it will be useful, | |
44 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
45 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
46 | * GNU General Public License for more details. | |
47 | * | |
48 | * You should have received a copy of the GNU General Public License | |
49 | * along with this program; if not, write to the Free Software | |
50 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
51 | * | |
52 | */ | |
53 | ||
54 | #include "driver.h" | |
55 | #include <linux/time.h> | |
ef9f0a42 | 56 | #include <linux/mutex.h> |
1da177e4 LT |
57 | #include "core.h" |
58 | #include "hwdep.h" | |
59 | #include "timer.h" | |
60 | #include "seq_midi_emul.h" | |
61 | #ifdef CONFIG_SND_SEQUENCER_OSS | |
62 | #include "seq_oss.h" | |
63 | #include "seq_oss_legacy.h" | |
64 | #endif | |
65 | #include "seq_device.h" | |
224a0332 | 66 | #include "asound_fm.h" |
1da177e4 LT |
67 | |
68 | /* | |
69 | * Register numbers for the global registers | |
70 | */ | |
71 | ||
72 | #define OPL3_REG_TEST 0x01 | |
73 | #define OPL3_ENABLE_WAVE_SELECT 0x20 | |
74 | ||
75 | #define OPL3_REG_TIMER1 0x02 | |
76 | #define OPL3_REG_TIMER2 0x03 | |
77 | #define OPL3_REG_TIMER_CONTROL 0x04 /* Left side */ | |
78 | #define OPL3_IRQ_RESET 0x80 | |
79 | #define OPL3_TIMER1_MASK 0x40 | |
80 | #define OPL3_TIMER2_MASK 0x20 | |
81 | #define OPL3_TIMER1_START 0x01 | |
82 | #define OPL3_TIMER2_START 0x02 | |
83 | ||
84 | #define OPL3_REG_CONNECTION_SELECT 0x04 /* Right side */ | |
85 | #define OPL3_LEFT_4OP_0 0x01 | |
86 | #define OPL3_LEFT_4OP_1 0x02 | |
87 | #define OPL3_LEFT_4OP_2 0x04 | |
88 | #define OPL3_RIGHT_4OP_0 0x08 | |
89 | #define OPL3_RIGHT_4OP_1 0x10 | |
90 | #define OPL3_RIGHT_4OP_2 0x20 | |
91 | ||
92 | #define OPL3_REG_MODE 0x05 /* Right side */ | |
93 | #define OPL3_OPL3_ENABLE 0x01 /* OPL3 mode */ | |
94 | #define OPL3_OPL4_ENABLE 0x02 /* OPL4 mode */ | |
95 | ||
96 | #define OPL3_REG_KBD_SPLIT 0x08 /* Left side */ | |
97 | #define OPL3_COMPOSITE_SINE_WAVE_MODE 0x80 /* Don't use with OPL-3? */ | |
98 | #define OPL3_KEYBOARD_SPLIT 0x40 | |
99 | ||
100 | #define OPL3_REG_PERCUSSION 0xbd /* Left side only */ | |
101 | #define OPL3_TREMOLO_DEPTH 0x80 | |
102 | #define OPL3_VIBRATO_DEPTH 0x40 | |
103 | #define OPL3_PERCUSSION_ENABLE 0x20 | |
104 | #define OPL3_BASSDRUM_ON 0x10 | |
105 | #define OPL3_SNAREDRUM_ON 0x08 | |
106 | #define OPL3_TOMTOM_ON 0x04 | |
107 | #define OPL3_CYMBAL_ON 0x02 | |
108 | #define OPL3_HIHAT_ON 0x01 | |
109 | ||
110 | /* | |
111 | * Offsets to the register banks for operators. To get the | |
112 | * register number just add the operator offset to the bank offset | |
113 | * | |
114 | * AM/VIB/EG/KSR/Multiple (0x20 to 0x35) | |
115 | */ | |
116 | #define OPL3_REG_AM_VIB 0x20 | |
117 | #define OPL3_TREMOLO_ON 0x80 | |
118 | #define OPL3_VIBRATO_ON 0x40 | |
119 | #define OPL3_SUSTAIN_ON 0x20 | |
120 | #define OPL3_KSR 0x10 /* Key scaling rate */ | |
121 | #define OPL3_MULTIPLE_MASK 0x0f /* Frequency multiplier */ | |
122 | ||
123 | /* | |
124 | * KSL/Total level (0x40 to 0x55) | |
125 | */ | |
126 | #define OPL3_REG_KSL_LEVEL 0x40 | |
127 | #define OPL3_KSL_MASK 0xc0 /* Envelope scaling bits */ | |
128 | #define OPL3_TOTAL_LEVEL_MASK 0x3f /* Strength (volume) of OP */ | |
129 | ||
130 | /* | |
131 | * Attack / Decay rate (0x60 to 0x75) | |
132 | */ | |
133 | #define OPL3_REG_ATTACK_DECAY 0x60 | |
134 | #define OPL3_ATTACK_MASK 0xf0 | |
135 | #define OPL3_DECAY_MASK 0x0f | |
136 | ||
137 | /* | |
138 | * Sustain level / Release rate (0x80 to 0x95) | |
139 | */ | |
140 | #define OPL3_REG_SUSTAIN_RELEASE 0x80 | |
141 | #define OPL3_SUSTAIN_MASK 0xf0 | |
142 | #define OPL3_RELEASE_MASK 0x0f | |
143 | ||
144 | /* | |
145 | * Wave select (0xE0 to 0xF5) | |
146 | */ | |
147 | #define OPL3_REG_WAVE_SELECT 0xe0 | |
148 | #define OPL3_WAVE_SELECT_MASK 0x07 | |
149 | ||
150 | /* | |
151 | * Offsets to the register banks for voices. Just add to the | |
152 | * voice number to get the register number. | |
153 | * | |
154 | * F-Number low bits (0xA0 to 0xA8). | |
155 | */ | |
156 | #define OPL3_REG_FNUM_LOW 0xa0 | |
157 | ||
158 | /* | |
159 | * F-number high bits / Key on / Block (octave) (0xB0 to 0xB8) | |
160 | */ | |
161 | #define OPL3_REG_KEYON_BLOCK 0xb0 | |
162 | #define OPL3_KEYON_BIT 0x20 | |
163 | #define OPL3_BLOCKNUM_MASK 0x1c | |
164 | #define OPL3_FNUM_HIGH_MASK 0x03 | |
165 | ||
166 | /* | |
167 | * Feedback / Connection (0xc0 to 0xc8) | |
168 | * | |
169 | * These registers have two new bits when the OPL-3 mode | |
170 | * is selected. These bits controls connecting the voice | |
171 | * to the stereo channels. For 4 OP voices this bit is | |
172 | * defined in the second half of the voice (add 3 to the | |
173 | * register offset). | |
174 | * | |
175 | * For 4 OP voices the connection bit is used in the | |
176 | * both halves (gives 4 ways to connect the operators). | |
177 | */ | |
178 | #define OPL3_REG_FEEDBACK_CONNECTION 0xc0 | |
179 | #define OPL3_FEEDBACK_MASK 0x0e /* Valid just for 1st OP of a voice */ | |
180 | #define OPL3_CONNECTION_BIT 0x01 | |
181 | /* | |
182 | * In the 4 OP mode there is four possible configurations how the | |
183 | * operators can be connected together (in 2 OP modes there is just | |
184 | * AM or FM). The 4 OP connection mode is defined by the rightmost | |
185 | * bit of the FEEDBACK_CONNECTION (0xC0-0xC8) on the both halves. | |
186 | * | |
187 | * First half Second half Mode | |
188 | * | |
189 | * +---+ | |
190 | * v | | |
191 | * 0 0 >+-1-+--2--3--4--> | |
192 | * | |
193 | * | |
194 | * | |
195 | * +---+ | |
196 | * | | | |
197 | * 0 1 >+-1-+--2-+ | |
198 | * |-> | |
199 | * >--3----4-+ | |
200 | * | |
201 | * +---+ | |
202 | * | | | |
203 | * 1 0 >+-1-+-----+ | |
204 | * |-> | |
205 | * >--2--3--4-+ | |
206 | * | |
207 | * +---+ | |
208 | * | | | |
209 | * 1 1 >+-1-+--+ | |
210 | * | | |
211 | * >--2--3-+-> | |
212 | * | | |
213 | * >--4----+ | |
214 | */ | |
215 | #define OPL3_STEREO_BITS 0x30 /* OPL-3 only */ | |
216 | #define OPL3_VOICE_TO_LEFT 0x10 | |
217 | #define OPL3_VOICE_TO_RIGHT 0x20 | |
218 | ||
219 | /* | |
220 | ||
221 | */ | |
222 | ||
223 | #define OPL3_LEFT 0x0000 | |
224 | #define OPL3_RIGHT 0x0100 | |
225 | ||
226 | #define OPL3_HW_AUTO 0x0000 | |
227 | #define OPL3_HW_OPL2 0x0200 | |
228 | #define OPL3_HW_OPL3 0x0300 | |
229 | #define OPL3_HW_OPL3_SV 0x0301 /* S3 SonicVibes */ | |
230 | #define OPL3_HW_OPL3_CS 0x0302 /* CS4232/CS4236+ */ | |
231 | #define OPL3_HW_OPL3_FM801 0x0303 /* FM801 */ | |
232 | #define OPL3_HW_OPL3_CS4281 0x0304 /* CS4281 */ | |
1da177e4 LT |
233 | #define OPL3_HW_OPL4 0x0400 /* YMF278B/YMF295 */ |
234 | #define OPL3_HW_OPL4_ML 0x0401 /* YMF704/YMF721 */ | |
235 | #define OPL3_HW_MASK 0xff00 | |
236 | ||
237 | #define MAX_OPL2_VOICES 9 | |
238 | #define MAX_OPL3_VOICES 18 | |
239 | ||
5b1646a8 | 240 | struct snd_opl3; |
1da177e4 | 241 | |
224a0332 TI |
242 | /* |
243 | * Instrument record, aka "Patch" | |
244 | */ | |
245 | ||
246 | /* FM operator */ | |
247 | struct fm_operator { | |
248 | unsigned char am_vib; | |
249 | unsigned char ksl_level; | |
250 | unsigned char attack_decay; | |
251 | unsigned char sustain_release; | |
252 | unsigned char wave_select; | |
253 | } __attribute__((packed)); | |
254 | ||
255 | /* Instrument data */ | |
256 | struct fm_instrument { | |
257 | struct fm_operator op[4]; | |
258 | unsigned char feedback_connection[2]; | |
259 | unsigned char echo_delay; | |
260 | unsigned char echo_atten; | |
261 | unsigned char chorus_spread; | |
262 | unsigned char trnsps; | |
263 | unsigned char fix_dur; | |
264 | unsigned char modes; | |
265 | unsigned char fix_key; | |
266 | }; | |
267 | ||
268 | /* type */ | |
269 | #define FM_PATCH_OPL2 0x01 /* OPL2 2 operators FM instrument */ | |
270 | #define FM_PATCH_OPL3 0x02 /* OPL3 4 operators FM instrument */ | |
271 | ||
272 | /* Instrument record */ | |
273 | struct fm_patch { | |
274 | unsigned char prog; | |
275 | unsigned char bank; | |
276 | unsigned char type; | |
277 | struct fm_instrument inst; | |
278 | char name[24]; | |
279 | struct fm_patch *next; | |
280 | }; | |
281 | ||
282 | ||
1da177e4 LT |
283 | /* |
284 | * A structure to keep track of each hardware voice | |
285 | */ | |
5b1646a8 | 286 | struct snd_opl3_voice { |
1da177e4 LT |
287 | int state; /* status */ |
288 | #define SNDRV_OPL3_ST_OFF 0 /* Not playing */ | |
289 | #define SNDRV_OPL3_ST_ON_2OP 1 /* 2op voice is allocated */ | |
290 | #define SNDRV_OPL3_ST_ON_4OP 2 /* 4op voice is allocated */ | |
291 | #define SNDRV_OPL3_ST_NOT_AVAIL -1 /* voice is not available */ | |
292 | ||
293 | unsigned int time; /* An allocation time */ | |
294 | unsigned char note; /* Note currently assigned to this voice */ | |
295 | ||
296 | unsigned long note_off; /* note-off time */ | |
297 | int note_off_check; /* check note-off time */ | |
298 | ||
299 | unsigned char keyon_reg; /* KON register shadow */ | |
300 | ||
5b1646a8 TI |
301 | struct snd_midi_channel *chan; /* Midi channel for this note */ |
302 | }; | |
1da177e4 LT |
303 | |
304 | struct snd_opl3 { | |
305 | unsigned long l_port; | |
306 | unsigned long r_port; | |
307 | struct resource *res_l_port; | |
308 | struct resource *res_r_port; | |
309 | unsigned short hardware; | |
310 | /* hardware access */ | |
5b1646a8 | 311 | void (*command) (struct snd_opl3 * opl3, unsigned short cmd, unsigned char val); |
1da177e4 LT |
312 | unsigned short timer_enable; |
313 | int seq_dev_num; /* sequencer device number */ | |
5b1646a8 TI |
314 | struct snd_timer *timer1; |
315 | struct snd_timer *timer2; | |
1da177e4 LT |
316 | spinlock_t timer_lock; |
317 | ||
318 | void *private_data; | |
5b1646a8 | 319 | void (*private_free)(struct snd_opl3 *); |
1da177e4 | 320 | |
04576525 | 321 | struct snd_hwdep *hwdep; |
1da177e4 | 322 | spinlock_t reg_lock; |
5b1646a8 | 323 | struct snd_card *card; /* The card that this belongs to */ |
1da177e4 LT |
324 | unsigned char fm_mode; /* OPL mode, see SNDRV_DM_FM_MODE_XXX */ |
325 | unsigned char rhythm; /* percussion mode flag */ | |
326 | unsigned char max_voices; /* max number of voices */ | |
327 | #if defined(CONFIG_SND_SEQUENCER) || defined(CONFIG_SND_SEQUENCER_MODULE) | |
328 | #define SNDRV_OPL3_MODE_SYNTH 0 /* OSS - voices allocated by application */ | |
329 | #define SNDRV_OPL3_MODE_SEQ 1 /* ALSA - driver handles voice allocation */ | |
330 | int synth_mode; /* synth mode */ | |
331 | int seq_client; | |
332 | ||
5b1646a8 TI |
333 | struct snd_seq_device *seq_dev; /* sequencer device */ |
334 | struct snd_midi_channel_set * chset; | |
1da177e4 LT |
335 | |
336 | #ifdef CONFIG_SND_SEQUENCER_OSS | |
5b1646a8 TI |
337 | struct snd_seq_device *oss_seq_dev; /* OSS sequencer device */ |
338 | struct snd_midi_channel_set * oss_chset; | |
1da177e4 LT |
339 | #endif |
340 | ||
224a0332 TI |
341 | #define OPL3_PATCH_HASH_SIZE 32 |
342 | struct fm_patch *patch_table[OPL3_PATCH_HASH_SIZE]; | |
1da177e4 | 343 | |
5b1646a8 | 344 | struct snd_opl3_voice voices[MAX_OPL3_VOICES]; /* Voices (OPL3 'channel') */ |
1da177e4 LT |
345 | int use_time; /* allocation counter */ |
346 | ||
347 | unsigned short connection_reg; /* connection reg shadow */ | |
348 | unsigned char drum_reg; /* percussion reg shadow */ | |
349 | ||
350 | spinlock_t voice_lock; /* Lock for voice access */ | |
351 | ||
352 | struct timer_list tlist; /* timer for note-offs and effects */ | |
353 | int sys_timer_status; /* system timer run status */ | |
354 | spinlock_t sys_timer_lock; /* Lock for system timer access */ | |
355 | #endif | |
1da177e4 LT |
356 | }; |
357 | ||
358 | /* opl3.c */ | |
5b1646a8 TI |
359 | void snd_opl3_interrupt(struct snd_hwdep * hw); |
360 | int snd_opl3_new(struct snd_card *card, unsigned short hardware, | |
361 | struct snd_opl3 **ropl3); | |
362 | int snd_opl3_init(struct snd_opl3 *opl3); | |
363 | int snd_opl3_create(struct snd_card *card, | |
1da177e4 LT |
364 | unsigned long l_port, unsigned long r_port, |
365 | unsigned short hardware, | |
366 | int integrated, | |
5b1646a8 TI |
367 | struct snd_opl3 ** opl3); |
368 | int snd_opl3_timer_new(struct snd_opl3 * opl3, int timer1_dev, int timer2_dev); | |
369 | int snd_opl3_hwdep_new(struct snd_opl3 * opl3, int device, int seq_device, | |
370 | struct snd_hwdep ** rhwdep); | |
1da177e4 LT |
371 | |
372 | /* opl3_synth */ | |
5b1646a8 TI |
373 | int snd_opl3_open(struct snd_hwdep * hw, struct file *file); |
374 | int snd_opl3_ioctl(struct snd_hwdep * hw, struct file *file, | |
1da177e4 | 375 | unsigned int cmd, unsigned long arg); |
224a0332 TI |
376 | long snd_opl3_write(struct snd_hwdep *hw, const char __user *buf, long count, |
377 | loff_t *offset); | |
5b1646a8 | 378 | int snd_opl3_release(struct snd_hwdep * hw, struct file *file); |
1da177e4 | 379 | |
5b1646a8 | 380 | void snd_opl3_reset(struct snd_opl3 * opl3); |
1da177e4 | 381 | |
224a0332 TI |
382 | int snd_opl3_load_patch(struct snd_opl3 *opl3, |
383 | int prog, int bank, int type, | |
384 | const char *name, | |
385 | const unsigned char *ext, | |
386 | const unsigned char *data); | |
387 | struct fm_patch *snd_opl3_find_patch(struct snd_opl3 *opl3, int prog, int bank, | |
388 | int create_patch); | |
389 | void snd_opl3_clear_patches(struct snd_opl3 *opl3); | |
390 | ||
1da177e4 | 391 | #endif /* __SOUND_OPL3_H */ |