Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Copyright (c) by Uros Bizjak <uros@kss-loka.si> | |
3 | * | |
4 | * Routines for OPL2/OPL3/OPL4 control | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | * | |
20 | */ | |
21 | ||
5a0e3ad6 | 22 | #include <linux/slab.h> |
d81a6d71 | 23 | #include <linux/export.h> |
1da177e4 LT |
24 | #include <sound/opl3.h> |
25 | #include <sound/asound_fm.h> | |
26 | ||
8eeaa2f9 | 27 | #if IS_ENABLED(CONFIG_SND_SEQUENCER) |
0ee46c9d TI |
28 | #define OPL3_SUPPORT_SYNTH |
29 | #endif | |
30 | ||
1da177e4 LT |
31 | /* |
32 | * There is 18 possible 2 OP voices | |
33 | * (9 in the left and 9 in the right). | |
34 | * The first OP is the modulator and 2nd is the carrier. | |
35 | * | |
36 | * The first three voices in the both sides may be connected | |
37 | * with another voice to a 4 OP voice. For example voice 0 | |
38 | * can be connected with voice 3. The operators of voice 3 are | |
39 | * used as operators 3 and 4 of the new 4 OP voice. | |
40 | * In this case the 2 OP voice number 0 is the 'first half' and | |
41 | * voice 3 is the second. | |
42 | */ | |
43 | ||
44 | ||
45 | /* | |
46 | * Register offset table for OPL2/3 voices, | |
47 | * OPL2 / one OPL3 register array side only | |
48 | */ | |
49 | ||
50 | char snd_opl3_regmap[MAX_OPL2_VOICES][4] = | |
51 | { | |
52 | /* OP1 OP2 OP3 OP4 */ | |
53 | /* ------------------------ */ | |
54 | { 0x00, 0x03, 0x08, 0x0b }, | |
55 | { 0x01, 0x04, 0x09, 0x0c }, | |
56 | { 0x02, 0x05, 0x0a, 0x0d }, | |
57 | ||
58 | { 0x08, 0x0b, 0x00, 0x00 }, | |
59 | { 0x09, 0x0c, 0x00, 0x00 }, | |
60 | { 0x0a, 0x0d, 0x00, 0x00 }, | |
61 | ||
62 | { 0x10, 0x13, 0x00, 0x00 }, /* used by percussive voices */ | |
63 | { 0x11, 0x14, 0x00, 0x00 }, /* if the percussive mode */ | |
64 | { 0x12, 0x15, 0x00, 0x00 } /* is selected (only left reg block) */ | |
65 | }; | |
66 | ||
ac19e19b TI |
67 | EXPORT_SYMBOL(snd_opl3_regmap); |
68 | ||
1da177e4 LT |
69 | /* |
70 | * prototypes | |
71 | */ | |
5b1646a8 TI |
72 | static int snd_opl3_play_note(struct snd_opl3 * opl3, struct snd_dm_fm_note * note); |
73 | static int snd_opl3_set_voice(struct snd_opl3 * opl3, struct snd_dm_fm_voice * voice); | |
74 | static int snd_opl3_set_params(struct snd_opl3 * opl3, struct snd_dm_fm_params * params); | |
75 | static int snd_opl3_set_mode(struct snd_opl3 * opl3, int mode); | |
76 | static int snd_opl3_set_connection(struct snd_opl3 * opl3, int connection); | |
1da177e4 LT |
77 | |
78 | /* ------------------------------ */ | |
79 | ||
80 | /* | |
81 | * open the device exclusively | |
82 | */ | |
5b1646a8 | 83 | int snd_opl3_open(struct snd_hwdep * hw, struct file *file) |
1da177e4 | 84 | { |
1da177e4 LT |
85 | return 0; |
86 | } | |
87 | ||
88 | /* | |
89 | * ioctl for hwdep device: | |
90 | */ | |
5b1646a8 | 91 | int snd_opl3_ioctl(struct snd_hwdep * hw, struct file *file, |
1da177e4 LT |
92 | unsigned int cmd, unsigned long arg) |
93 | { | |
5b1646a8 | 94 | struct snd_opl3 *opl3 = hw->private_data; |
1da177e4 LT |
95 | void __user *argp = (void __user *)arg; |
96 | ||
5e246b85 TI |
97 | if (snd_BUG_ON(!opl3)) |
98 | return -EINVAL; | |
1da177e4 LT |
99 | |
100 | switch (cmd) { | |
101 | /* get information */ | |
102 | case SNDRV_DM_FM_IOCTL_INFO: | |
103 | { | |
5b1646a8 | 104 | struct snd_dm_fm_info info; |
1da177e4 LT |
105 | |
106 | info.fm_mode = opl3->fm_mode; | |
107 | info.rhythm = opl3->rhythm; | |
5b1646a8 | 108 | if (copy_to_user(argp, &info, sizeof(struct snd_dm_fm_info))) |
1da177e4 LT |
109 | return -EFAULT; |
110 | return 0; | |
111 | } | |
112 | ||
113 | case SNDRV_DM_FM_IOCTL_RESET: | |
114 | #ifdef CONFIG_SND_OSSEMUL | |
115 | case SNDRV_DM_FM_OSS_IOCTL_RESET: | |
116 | #endif | |
117 | snd_opl3_reset(opl3); | |
118 | return 0; | |
119 | ||
120 | case SNDRV_DM_FM_IOCTL_PLAY_NOTE: | |
121 | #ifdef CONFIG_SND_OSSEMUL | |
122 | case SNDRV_DM_FM_OSS_IOCTL_PLAY_NOTE: | |
123 | #endif | |
124 | { | |
5b1646a8 TI |
125 | struct snd_dm_fm_note note; |
126 | if (copy_from_user(¬e, argp, sizeof(struct snd_dm_fm_note))) | |
1da177e4 LT |
127 | return -EFAULT; |
128 | return snd_opl3_play_note(opl3, ¬e); | |
129 | } | |
130 | ||
131 | case SNDRV_DM_FM_IOCTL_SET_VOICE: | |
132 | #ifdef CONFIG_SND_OSSEMUL | |
133 | case SNDRV_DM_FM_OSS_IOCTL_SET_VOICE: | |
134 | #endif | |
135 | { | |
5b1646a8 TI |
136 | struct snd_dm_fm_voice voice; |
137 | if (copy_from_user(&voice, argp, sizeof(struct snd_dm_fm_voice))) | |
1da177e4 LT |
138 | return -EFAULT; |
139 | return snd_opl3_set_voice(opl3, &voice); | |
140 | } | |
141 | ||
142 | case SNDRV_DM_FM_IOCTL_SET_PARAMS: | |
143 | #ifdef CONFIG_SND_OSSEMUL | |
144 | case SNDRV_DM_FM_OSS_IOCTL_SET_PARAMS: | |
145 | #endif | |
146 | { | |
5b1646a8 TI |
147 | struct snd_dm_fm_params params; |
148 | if (copy_from_user(¶ms, argp, sizeof(struct snd_dm_fm_params))) | |
1da177e4 LT |
149 | return -EFAULT; |
150 | return snd_opl3_set_params(opl3, ¶ms); | |
151 | } | |
152 | ||
153 | case SNDRV_DM_FM_IOCTL_SET_MODE: | |
154 | #ifdef CONFIG_SND_OSSEMUL | |
155 | case SNDRV_DM_FM_OSS_IOCTL_SET_MODE: | |
156 | #endif | |
157 | return snd_opl3_set_mode(opl3, (int) arg); | |
158 | ||
159 | case SNDRV_DM_FM_IOCTL_SET_CONNECTION: | |
160 | #ifdef CONFIG_SND_OSSEMUL | |
161 | case SNDRV_DM_FM_OSS_IOCTL_SET_OPL: | |
162 | #endif | |
163 | return snd_opl3_set_connection(opl3, (int) arg); | |
164 | ||
0ee46c9d | 165 | #ifdef OPL3_SUPPORT_SYNTH |
224a0332 TI |
166 | case SNDRV_DM_FM_IOCTL_CLEAR_PATCHES: |
167 | snd_opl3_clear_patches(opl3); | |
168 | return 0; | |
0ee46c9d | 169 | #endif |
224a0332 | 170 | |
1da177e4 LT |
171 | #ifdef CONFIG_SND_DEBUG |
172 | default: | |
45203832 | 173 | snd_printk(KERN_WARNING "unknown IOCTL: 0x%x\n", cmd); |
1da177e4 LT |
174 | #endif |
175 | } | |
176 | return -ENOTTY; | |
177 | } | |
178 | ||
179 | /* | |
180 | * close the device | |
181 | */ | |
5b1646a8 | 182 | int snd_opl3_release(struct snd_hwdep * hw, struct file *file) |
1da177e4 | 183 | { |
5b1646a8 | 184 | struct snd_opl3 *opl3 = hw->private_data; |
1da177e4 LT |
185 | |
186 | snd_opl3_reset(opl3); | |
1da177e4 LT |
187 | return 0; |
188 | } | |
189 | ||
0ee46c9d | 190 | #ifdef OPL3_SUPPORT_SYNTH |
224a0332 TI |
191 | /* |
192 | * write the device - load patches | |
193 | */ | |
194 | long snd_opl3_write(struct snd_hwdep *hw, const char __user *buf, long count, | |
195 | loff_t *offset) | |
196 | { | |
197 | struct snd_opl3 *opl3 = hw->private_data; | |
198 | long result = 0; | |
199 | int err = 0; | |
200 | struct sbi_patch inst; | |
201 | ||
202 | while (count >= sizeof(inst)) { | |
203 | unsigned char type; | |
204 | if (copy_from_user(&inst, buf, sizeof(inst))) | |
205 | return -EFAULT; | |
206 | if (!memcmp(inst.key, FM_KEY_SBI, 4) || | |
207 | !memcmp(inst.key, FM_KEY_2OP, 4)) | |
208 | type = FM_PATCH_OPL2; | |
209 | else if (!memcmp(inst.key, FM_KEY_4OP, 4)) | |
210 | type = FM_PATCH_OPL3; | |
211 | else /* invalid type */ | |
212 | break; | |
213 | err = snd_opl3_load_patch(opl3, inst.prog, inst.bank, type, | |
214 | inst.name, inst.extension, | |
215 | inst.data); | |
216 | if (err < 0) | |
217 | break; | |
218 | result += sizeof(inst); | |
219 | count -= sizeof(inst); | |
220 | } | |
221 | return result > 0 ? result : err; | |
222 | } | |
223 | ||
224 | ||
225 | /* | |
226 | * Patch management | |
227 | */ | |
228 | ||
229 | /* offsets for SBI params */ | |
230 | #define AM_VIB 0 | |
231 | #define KSL_LEVEL 2 | |
232 | #define ATTACK_DECAY 4 | |
233 | #define SUSTAIN_RELEASE 6 | |
234 | #define WAVE_SELECT 8 | |
235 | ||
236 | /* offset for SBI instrument */ | |
237 | #define CONNECTION 10 | |
238 | #define OFFSET_4OP 11 | |
239 | ||
240 | /* | |
241 | * load a patch, obviously. | |
242 | * | |
243 | * loaded on the given program and bank numbers with the given type | |
244 | * (FM_PATCH_OPLx). | |
245 | * data is the pointer of SBI record _without_ header (key and name). | |
246 | * name is the name string of the patch. | |
247 | * ext is the extension data of 7 bytes long (stored in name of SBI | |
248 | * data up to offset 25), or NULL to skip. | |
249 | * return 0 if successful or a negative error code. | |
250 | */ | |
251 | int snd_opl3_load_patch(struct snd_opl3 *opl3, | |
252 | int prog, int bank, int type, | |
253 | const char *name, | |
254 | const unsigned char *ext, | |
255 | const unsigned char *data) | |
256 | { | |
257 | struct fm_patch *patch; | |
258 | int i; | |
259 | ||
260 | patch = snd_opl3_find_patch(opl3, prog, bank, 1); | |
261 | if (!patch) | |
262 | return -ENOMEM; | |
263 | ||
264 | patch->type = type; | |
265 | ||
266 | for (i = 0; i < 2; i++) { | |
267 | patch->inst.op[i].am_vib = data[AM_VIB + i]; | |
268 | patch->inst.op[i].ksl_level = data[KSL_LEVEL + i]; | |
269 | patch->inst.op[i].attack_decay = data[ATTACK_DECAY + i]; | |
270 | patch->inst.op[i].sustain_release = data[SUSTAIN_RELEASE + i]; | |
271 | patch->inst.op[i].wave_select = data[WAVE_SELECT + i]; | |
272 | } | |
273 | patch->inst.feedback_connection[0] = data[CONNECTION]; | |
274 | ||
275 | if (type == FM_PATCH_OPL3) { | |
276 | for (i = 0; i < 2; i++) { | |
277 | patch->inst.op[i+2].am_vib = | |
278 | data[OFFSET_4OP + AM_VIB + i]; | |
279 | patch->inst.op[i+2].ksl_level = | |
280 | data[OFFSET_4OP + KSL_LEVEL + i]; | |
281 | patch->inst.op[i+2].attack_decay = | |
282 | data[OFFSET_4OP + ATTACK_DECAY + i]; | |
283 | patch->inst.op[i+2].sustain_release = | |
284 | data[OFFSET_4OP + SUSTAIN_RELEASE + i]; | |
285 | patch->inst.op[i+2].wave_select = | |
286 | data[OFFSET_4OP + WAVE_SELECT + i]; | |
287 | } | |
288 | patch->inst.feedback_connection[1] = | |
289 | data[OFFSET_4OP + CONNECTION]; | |
290 | } | |
291 | ||
292 | if (ext) { | |
293 | patch->inst.echo_delay = ext[0]; | |
294 | patch->inst.echo_atten = ext[1]; | |
295 | patch->inst.chorus_spread = ext[2]; | |
296 | patch->inst.trnsps = ext[3]; | |
297 | patch->inst.fix_dur = ext[4]; | |
298 | patch->inst.modes = ext[5]; | |
299 | patch->inst.fix_key = ext[6]; | |
300 | } | |
301 | ||
302 | if (name) | |
303 | strlcpy(patch->name, name, sizeof(patch->name)); | |
304 | ||
305 | return 0; | |
306 | } | |
307 | EXPORT_SYMBOL(snd_opl3_load_patch); | |
308 | ||
309 | /* | |
310 | * find a patch with the given program and bank numbers, returns its pointer | |
311 | * if no matching patch is found and create_patch is set, it creates a | |
312 | * new patch object. | |
313 | */ | |
314 | struct fm_patch *snd_opl3_find_patch(struct snd_opl3 *opl3, int prog, int bank, | |
315 | int create_patch) | |
316 | { | |
317 | /* pretty dumb hash key */ | |
318 | unsigned int key = (prog + bank) % OPL3_PATCH_HASH_SIZE; | |
319 | struct fm_patch *patch; | |
320 | ||
321 | for (patch = opl3->patch_table[key]; patch; patch = patch->next) { | |
322 | if (patch->prog == prog && patch->bank == bank) | |
323 | return patch; | |
324 | } | |
325 | if (!create_patch) | |
326 | return NULL; | |
327 | ||
328 | patch = kzalloc(sizeof(*patch), GFP_KERNEL); | |
329 | if (!patch) | |
330 | return NULL; | |
331 | patch->prog = prog; | |
332 | patch->bank = bank; | |
333 | patch->next = opl3->patch_table[key]; | |
334 | opl3->patch_table[key] = patch; | |
335 | return patch; | |
336 | } | |
337 | EXPORT_SYMBOL(snd_opl3_find_patch); | |
338 | ||
339 | /* | |
340 | * Clear all patches of the given OPL3 instance | |
341 | */ | |
342 | void snd_opl3_clear_patches(struct snd_opl3 *opl3) | |
343 | { | |
344 | int i; | |
345 | for (i = 0; i < OPL3_PATCH_HASH_SIZE; i++) { | |
346 | struct fm_patch *patch, *next; | |
347 | for (patch = opl3->patch_table[i]; patch; patch = next) { | |
348 | next = patch->next; | |
349 | kfree(patch); | |
350 | } | |
351 | } | |
352 | memset(opl3->patch_table, 0, sizeof(opl3->patch_table)); | |
353 | } | |
0ee46c9d | 354 | #endif /* OPL3_SUPPORT_SYNTH */ |
224a0332 | 355 | |
1da177e4 LT |
356 | /* ------------------------------ */ |
357 | ||
5b1646a8 | 358 | void snd_opl3_reset(struct snd_opl3 * opl3) |
1da177e4 LT |
359 | { |
360 | unsigned short opl3_reg; | |
361 | ||
362 | unsigned short reg_side; | |
363 | unsigned char voice_offset; | |
364 | ||
365 | int max_voices, i; | |
366 | ||
367 | max_voices = (opl3->hardware < OPL3_HW_OPL3) ? | |
368 | MAX_OPL2_VOICES : MAX_OPL3_VOICES; | |
369 | ||
370 | for (i = 0; i < max_voices; i++) { | |
371 | /* Get register array side and offset of voice */ | |
372 | if (i < MAX_OPL2_VOICES) { | |
373 | /* Left register block for voices 0 .. 8 */ | |
374 | reg_side = OPL3_LEFT; | |
375 | voice_offset = i; | |
376 | } else { | |
377 | /* Right register block for voices 9 .. 17 */ | |
378 | reg_side = OPL3_RIGHT; | |
379 | voice_offset = i - MAX_OPL2_VOICES; | |
380 | } | |
381 | opl3_reg = reg_side | (OPL3_REG_KSL_LEVEL + snd_opl3_regmap[voice_offset][0]); | |
382 | opl3->command(opl3, opl3_reg, OPL3_TOTAL_LEVEL_MASK); /* Operator 1 volume */ | |
383 | opl3_reg = reg_side | (OPL3_REG_KSL_LEVEL + snd_opl3_regmap[voice_offset][1]); | |
384 | opl3->command(opl3, opl3_reg, OPL3_TOTAL_LEVEL_MASK); /* Operator 2 volume */ | |
385 | ||
386 | opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset); | |
387 | opl3->command(opl3, opl3_reg, 0x00); /* Note off */ | |
388 | } | |
389 | ||
390 | opl3->max_voices = MAX_OPL2_VOICES; | |
391 | opl3->fm_mode = SNDRV_DM_FM_MODE_OPL2; | |
392 | ||
393 | opl3->command(opl3, OPL3_LEFT | OPL3_REG_TEST, OPL3_ENABLE_WAVE_SELECT); | |
394 | opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION, 0x00); /* Melodic mode */ | |
395 | opl3->rhythm = 0; | |
396 | } | |
397 | ||
ac19e19b | 398 | EXPORT_SYMBOL(snd_opl3_reset); |
1da177e4 | 399 | |
5b1646a8 | 400 | static int snd_opl3_play_note(struct snd_opl3 * opl3, struct snd_dm_fm_note * note) |
1da177e4 LT |
401 | { |
402 | unsigned short reg_side; | |
403 | unsigned char voice_offset; | |
404 | ||
405 | unsigned short opl3_reg; | |
406 | unsigned char reg_val; | |
407 | ||
408 | /* Voices 0 - 8 in OPL2 mode */ | |
409 | /* Voices 0 - 17 in OPL3 mode */ | |
410 | if (note->voice >= ((opl3->fm_mode == SNDRV_DM_FM_MODE_OPL3) ? | |
411 | MAX_OPL3_VOICES : MAX_OPL2_VOICES)) | |
412 | return -EINVAL; | |
413 | ||
414 | /* Get register array side and offset of voice */ | |
415 | if (note->voice < MAX_OPL2_VOICES) { | |
416 | /* Left register block for voices 0 .. 8 */ | |
417 | reg_side = OPL3_LEFT; | |
418 | voice_offset = note->voice; | |
419 | } else { | |
420 | /* Right register block for voices 9 .. 17 */ | |
421 | reg_side = OPL3_RIGHT; | |
422 | voice_offset = note->voice - MAX_OPL2_VOICES; | |
423 | } | |
424 | ||
425 | /* Set lower 8 bits of note frequency */ | |
426 | reg_val = (unsigned char) note->fnum; | |
427 | opl3_reg = reg_side | (OPL3_REG_FNUM_LOW + voice_offset); | |
428 | opl3->command(opl3, opl3_reg, reg_val); | |
429 | ||
430 | reg_val = 0x00; | |
431 | /* Set output sound flag */ | |
432 | if (note->key_on) | |
433 | reg_val |= OPL3_KEYON_BIT; | |
434 | /* Set octave */ | |
435 | reg_val |= (note->octave << 2) & OPL3_BLOCKNUM_MASK; | |
436 | /* Set higher 2 bits of note frequency */ | |
437 | reg_val |= (unsigned char) (note->fnum >> 8) & OPL3_FNUM_HIGH_MASK; | |
438 | ||
439 | /* Set OPL3 KEYON_BLOCK register of requested voice */ | |
440 | opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset); | |
441 | opl3->command(opl3, opl3_reg, reg_val); | |
442 | ||
443 | return 0; | |
444 | } | |
445 | ||
446 | ||
5b1646a8 | 447 | static int snd_opl3_set_voice(struct snd_opl3 * opl3, struct snd_dm_fm_voice * voice) |
1da177e4 LT |
448 | { |
449 | unsigned short reg_side; | |
450 | unsigned char op_offset; | |
451 | unsigned char voice_offset; | |
452 | ||
453 | unsigned short opl3_reg; | |
454 | unsigned char reg_val; | |
455 | ||
456 | /* Only operators 1 and 2 */ | |
457 | if (voice->op > 1) | |
458 | return -EINVAL; | |
459 | /* Voices 0 - 8 in OPL2 mode */ | |
460 | /* Voices 0 - 17 in OPL3 mode */ | |
461 | if (voice->voice >= ((opl3->fm_mode == SNDRV_DM_FM_MODE_OPL3) ? | |
462 | MAX_OPL3_VOICES : MAX_OPL2_VOICES)) | |
463 | return -EINVAL; | |
464 | ||
465 | /* Get register array side and offset of voice */ | |
466 | if (voice->voice < MAX_OPL2_VOICES) { | |
467 | /* Left register block for voices 0 .. 8 */ | |
468 | reg_side = OPL3_LEFT; | |
469 | voice_offset = voice->voice; | |
470 | } else { | |
471 | /* Right register block for voices 9 .. 17 */ | |
472 | reg_side = OPL3_RIGHT; | |
473 | voice_offset = voice->voice - MAX_OPL2_VOICES; | |
474 | } | |
475 | /* Get register offset of operator */ | |
476 | op_offset = snd_opl3_regmap[voice_offset][voice->op]; | |
477 | ||
478 | reg_val = 0x00; | |
479 | /* Set amplitude modulation (tremolo) effect */ | |
480 | if (voice->am) | |
481 | reg_val |= OPL3_TREMOLO_ON; | |
482 | /* Set vibrato effect */ | |
483 | if (voice->vibrato) | |
484 | reg_val |= OPL3_VIBRATO_ON; | |
485 | /* Set sustaining sound phase */ | |
486 | if (voice->do_sustain) | |
487 | reg_val |= OPL3_SUSTAIN_ON; | |
488 | /* Set keyboard scaling bit */ | |
489 | if (voice->kbd_scale) | |
490 | reg_val |= OPL3_KSR; | |
491 | /* Set harmonic or frequency multiplier */ | |
492 | reg_val |= voice->harmonic & OPL3_MULTIPLE_MASK; | |
493 | ||
494 | /* Set OPL3 AM_VIB register of requested voice/operator */ | |
495 | opl3_reg = reg_side | (OPL3_REG_AM_VIB + op_offset); | |
496 | opl3->command(opl3, opl3_reg, reg_val); | |
497 | ||
498 | /* Set decreasing volume of higher notes */ | |
499 | reg_val = (voice->scale_level << 6) & OPL3_KSL_MASK; | |
500 | /* Set output volume */ | |
501 | reg_val |= ~voice->volume & OPL3_TOTAL_LEVEL_MASK; | |
502 | ||
503 | /* Set OPL3 KSL_LEVEL register of requested voice/operator */ | |
504 | opl3_reg = reg_side | (OPL3_REG_KSL_LEVEL + op_offset); | |
505 | opl3->command(opl3, opl3_reg, reg_val); | |
506 | ||
507 | /* Set attack phase level */ | |
508 | reg_val = (voice->attack << 4) & OPL3_ATTACK_MASK; | |
509 | /* Set decay phase level */ | |
510 | reg_val |= voice->decay & OPL3_DECAY_MASK; | |
511 | ||
512 | /* Set OPL3 ATTACK_DECAY register of requested voice/operator */ | |
513 | opl3_reg = reg_side | (OPL3_REG_ATTACK_DECAY + op_offset); | |
514 | opl3->command(opl3, opl3_reg, reg_val); | |
515 | ||
516 | /* Set sustain phase level */ | |
517 | reg_val = (voice->sustain << 4) & OPL3_SUSTAIN_MASK; | |
518 | /* Set release phase level */ | |
519 | reg_val |= voice->release & OPL3_RELEASE_MASK; | |
520 | ||
521 | /* Set OPL3 SUSTAIN_RELEASE register of requested voice/operator */ | |
522 | opl3_reg = reg_side | (OPL3_REG_SUSTAIN_RELEASE + op_offset); | |
523 | opl3->command(opl3, opl3_reg, reg_val); | |
524 | ||
525 | /* Set inter-operator feedback */ | |
526 | reg_val = (voice->feedback << 1) & OPL3_FEEDBACK_MASK; | |
527 | /* Set inter-operator connection */ | |
528 | if (voice->connection) | |
529 | reg_val |= OPL3_CONNECTION_BIT; | |
530 | /* OPL-3 only */ | |
531 | if (opl3->fm_mode == SNDRV_DM_FM_MODE_OPL3) { | |
532 | if (voice->left) | |
533 | reg_val |= OPL3_VOICE_TO_LEFT; | |
534 | if (voice->right) | |
535 | reg_val |= OPL3_VOICE_TO_RIGHT; | |
536 | } | |
537 | /* Feedback/connection bits are applicable to voice */ | |
538 | opl3_reg = reg_side | (OPL3_REG_FEEDBACK_CONNECTION + voice_offset); | |
539 | opl3->command(opl3, opl3_reg, reg_val); | |
540 | ||
541 | /* Select waveform */ | |
542 | reg_val = voice->waveform & OPL3_WAVE_SELECT_MASK; | |
543 | opl3_reg = reg_side | (OPL3_REG_WAVE_SELECT + op_offset); | |
544 | opl3->command(opl3, opl3_reg, reg_val); | |
545 | ||
546 | return 0; | |
547 | } | |
548 | ||
5b1646a8 | 549 | static int snd_opl3_set_params(struct snd_opl3 * opl3, struct snd_dm_fm_params * params) |
1da177e4 LT |
550 | { |
551 | unsigned char reg_val; | |
552 | ||
553 | reg_val = 0x00; | |
554 | /* Set keyboard split method */ | |
555 | if (params->kbd_split) | |
556 | reg_val |= OPL3_KEYBOARD_SPLIT; | |
557 | opl3->command(opl3, OPL3_LEFT | OPL3_REG_KBD_SPLIT, reg_val); | |
558 | ||
559 | reg_val = 0x00; | |
560 | /* Set amplitude modulation (tremolo) depth */ | |
561 | if (params->am_depth) | |
562 | reg_val |= OPL3_TREMOLO_DEPTH; | |
563 | /* Set vibrato depth */ | |
564 | if (params->vib_depth) | |
565 | reg_val |= OPL3_VIBRATO_DEPTH; | |
566 | /* Set percussion mode */ | |
567 | if (params->rhythm) { | |
568 | reg_val |= OPL3_PERCUSSION_ENABLE; | |
569 | opl3->rhythm = 1; | |
570 | } else { | |
571 | opl3->rhythm = 0; | |
572 | } | |
573 | /* Play percussion instruments */ | |
574 | if (params->bass) | |
575 | reg_val |= OPL3_BASSDRUM_ON; | |
576 | if (params->snare) | |
577 | reg_val |= OPL3_SNAREDRUM_ON; | |
578 | if (params->tomtom) | |
579 | reg_val |= OPL3_TOMTOM_ON; | |
580 | if (params->cymbal) | |
581 | reg_val |= OPL3_CYMBAL_ON; | |
582 | if (params->hihat) | |
583 | reg_val |= OPL3_HIHAT_ON; | |
584 | ||
585 | opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION, reg_val); | |
586 | return 0; | |
587 | } | |
588 | ||
5b1646a8 | 589 | static int snd_opl3_set_mode(struct snd_opl3 * opl3, int mode) |
1da177e4 LT |
590 | { |
591 | if ((mode == SNDRV_DM_FM_MODE_OPL3) && (opl3->hardware < OPL3_HW_OPL3)) | |
592 | return -EINVAL; | |
593 | ||
594 | opl3->fm_mode = mode; | |
595 | if (opl3->hardware >= OPL3_HW_OPL3) | |
596 | opl3->command(opl3, OPL3_RIGHT | OPL3_REG_CONNECTION_SELECT, 0x00); /* Clear 4-op connections */ | |
597 | ||
598 | return 0; | |
599 | } | |
600 | ||
5b1646a8 | 601 | static int snd_opl3_set_connection(struct snd_opl3 * opl3, int connection) |
1da177e4 LT |
602 | { |
603 | unsigned char reg_val; | |
604 | ||
605 | /* OPL-3 only */ | |
606 | if (opl3->fm_mode != SNDRV_DM_FM_MODE_OPL3) | |
607 | return -EINVAL; | |
608 | ||
609 | reg_val = connection & (OPL3_RIGHT_4OP_0 | OPL3_RIGHT_4OP_1 | OPL3_RIGHT_4OP_2 | | |
610 | OPL3_LEFT_4OP_0 | OPL3_LEFT_4OP_1 | OPL3_LEFT_4OP_2); | |
611 | /* Set 4-op connections */ | |
612 | opl3->command(opl3, OPL3_RIGHT | OPL3_REG_CONNECTION_SELECT, reg_val); | |
613 | ||
614 | return 0; | |
615 | } | |
ac19e19b | 616 |