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[PATCH] w1_therm: removed duplicated family id.
[linux-2.6/verdex.git] / sound / pci / emu10k1 / emu10k1_callback.c
blob7cf2f908eed9aa6ae5449593234df104672b37ed
1 /*
2 * synth callback routines for Emu10k1
3 *
4 * Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
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 #include "emu10k1_synth_local.h"
22 #include <sound/asoundef.h>
23
24 /* voice status */
25 enum {
26 V_FREE=0, V_OFF, V_RELEASED, V_PLAYING, V_END
27 };
28
29 /* Keeps track of what we are finding */
30 typedef struct best_voice {
31 unsigned int time;
32 int voice;
33 } best_voice_t;
34
35 /*
36 * prototypes
37 */
38 static void lookup_voices(snd_emux_t *emu, emu10k1_t *hw, best_voice_t *best, int active_only);
39 static snd_emux_voice_t *get_voice(snd_emux_t *emu, snd_emux_port_t *port);
40 static int start_voice(snd_emux_voice_t *vp);
41 static void trigger_voice(snd_emux_voice_t *vp);
42 static void release_voice(snd_emux_voice_t *vp);
43 static void update_voice(snd_emux_voice_t *vp, int update);
44 static void terminate_voice(snd_emux_voice_t *vp);
45 static void free_voice(snd_emux_voice_t *vp);
46
47 static void set_fmmod(emu10k1_t *hw, snd_emux_voice_t *vp);
48 static void set_fm2frq2(emu10k1_t *hw, snd_emux_voice_t *vp);
49 static void set_filterQ(emu10k1_t *hw, snd_emux_voice_t *vp);
50
51 /*
52 * Ensure a value is between two points
53 * macro evaluates its args more than once, so changed to upper-case.
54 */
55 #define LIMITVALUE(x, a, b) do { if ((x) < (a)) (x) = (a); else if ((x) > (b)) (x) = (b); } while (0)
56 #define LIMITMAX(x, a) do {if ((x) > (a)) (x) = (a); } while (0)
57
58
59 /*
60 * set up operators
61 */
62 static snd_emux_operators_t emu10k1_ops = {
63 .owner = THIS_MODULE,
64 .get_voice = get_voice,
65 .prepare = start_voice,
66 .trigger = trigger_voice,
67 .release = release_voice,
68 .update = update_voice,
69 .terminate = terminate_voice,
70 .free_voice = free_voice,
71 .sample_new = snd_emu10k1_sample_new,
72 .sample_free = snd_emu10k1_sample_free,
73 };
74
75 void
76 snd_emu10k1_ops_setup(snd_emux_t *emu)
77 {
78 emu->ops = emu10k1_ops;
79 }
80
81
82 /*
83 * get more voice for pcm
84 *
85 * terminate most inactive voice and give it as a pcm voice.
86 */
87 int
88 snd_emu10k1_synth_get_voice(emu10k1_t *hw)
89 {
90 snd_emux_t *emu;
91 snd_emux_voice_t *vp;
92 best_voice_t best[V_END];
93 unsigned long flags;
94 int i;
95
96 emu = hw->synth;
97
98 spin_lock_irqsave(&emu->voice_lock, flags);
99 lookup_voices(emu, hw, best, 1); /* no OFF voices */
100 for (i = 0; i < V_END; i++) {
101 if (best[i].voice >= 0) {
102 int ch;
103 vp = &emu->voices[best[i].voice];
104 if ((ch = vp->ch) < 0) {
105 //printk("synth_get_voice: ch < 0 (%d) ??", i);
106 continue;
107 }
108 vp->emu->num_voices--;
109 vp->ch = -1;
110 vp->state = SNDRV_EMUX_ST_OFF;
111 spin_unlock_irqrestore(&emu->voice_lock, flags);
112 return ch;
113 }
114 }
115 spin_unlock_irqrestore(&emu->voice_lock, flags);
116
117 /* not found */
118 return -ENOMEM;
119 }
120
121
122 /*
123 * turn off the voice (not terminated)
124 */
125 static void
126 release_voice(snd_emux_voice_t *vp)
127 {
128 int dcysusv;
129 emu10k1_t *hw;
130
131 hw = vp->hw;
132 dcysusv = 0x8000 | (unsigned char)vp->reg.parm.modrelease;
133 snd_emu10k1_ptr_write(hw, DCYSUSM, vp->ch, dcysusv);
134 dcysusv = 0x8000 | (unsigned char)vp->reg.parm.volrelease | DCYSUSV_CHANNELENABLE_MASK;
135 snd_emu10k1_ptr_write(hw, DCYSUSV, vp->ch, dcysusv);
136 }
137
138
139 /*
140 * terminate the voice
141 */
142 static void
143 terminate_voice(snd_emux_voice_t *vp)
144 {
145 emu10k1_t *hw;
146
147 snd_assert(vp, return);
148 hw = vp->hw;
149 snd_emu10k1_ptr_write(hw, DCYSUSV, vp->ch, 0x807f | DCYSUSV_CHANNELENABLE_MASK);
150 if (vp->block) {
151 emu10k1_memblk_t *emem;
152 emem = (emu10k1_memblk_t *)vp->block;
153 if (emem->map_locked > 0)
154 emem->map_locked--;
155 }
156 }
157
158 /*
159 * release the voice to system
160 */
161 static void
162 free_voice(snd_emux_voice_t *vp)
163 {
164 emu10k1_t *hw;
165
166 hw = vp->hw;
167 if (vp->ch >= 0) {
168 snd_emu10k1_ptr_write(hw, IFATN, vp->ch, 0xff00);
169 snd_emu10k1_ptr_write(hw, DCYSUSV, vp->ch, 0x807f | DCYSUSV_CHANNELENABLE_MASK);
170 // snd_emu10k1_ptr_write(hw, DCYSUSV, vp->ch, 0);
171 snd_emu10k1_ptr_write(hw, VTFT, vp->ch, 0xffff);
172 snd_emu10k1_ptr_write(hw, CVCF, vp->ch, 0xffff);
173 snd_emu10k1_voice_free(hw, &hw->voices[vp->ch]);
174 vp->emu->num_voices--;
175 vp->ch = -1;
176 }
177 }
178
179
180 /*
181 * update registers
182 */
183 static void
184 update_voice(snd_emux_voice_t *vp, int update)
185 {
186 emu10k1_t *hw;
187
188 hw = vp->hw;
189 if (update & SNDRV_EMUX_UPDATE_VOLUME)
190 snd_emu10k1_ptr_write(hw, IFATN_ATTENUATION, vp->ch, vp->avol);
191 if (update & SNDRV_EMUX_UPDATE_PITCH)
192 snd_emu10k1_ptr_write(hw, IP, vp->ch, vp->apitch);
193 if (update & SNDRV_EMUX_UPDATE_PAN) {
194 snd_emu10k1_ptr_write(hw, PTRX_FXSENDAMOUNT_A, vp->ch, vp->apan);
195 snd_emu10k1_ptr_write(hw, PTRX_FXSENDAMOUNT_B, vp->ch, vp->aaux);
196 }
197 if (update & SNDRV_EMUX_UPDATE_FMMOD)
198 set_fmmod(hw, vp);
199 if (update & SNDRV_EMUX_UPDATE_TREMFREQ)
200 snd_emu10k1_ptr_write(hw, TREMFRQ, vp->ch, vp->reg.parm.tremfrq);
201 if (update & SNDRV_EMUX_UPDATE_FM2FRQ2)
202 set_fm2frq2(hw, vp);
203 if (update & SNDRV_EMUX_UPDATE_Q)
204 set_filterQ(hw, vp);
205 }
206
207
208 /*
209 * look up voice table - get the best voice in order of preference
210 */
211 /* spinlock held! */
212 static void
213 lookup_voices(snd_emux_t *emu, emu10k1_t *hw, best_voice_t *best, int active_only)
214 {
215 snd_emux_voice_t *vp;
216 best_voice_t *bp;
217 int i;
218
219 for (i = 0; i < V_END; i++) {
220 best[i].time = (unsigned int)-1; /* XXX MAX_?INT really */;
221 best[i].voice = -1;
222 }
223
224 /*
225 * Go through them all and get a best one to use.
226 * NOTE: could also look at volume and pick the quietest one.
227 */
228 for (i = 0; i < emu->max_voices; i++) {
229 int state, val;
230
231 vp = &emu->voices[i];
232 state = vp->state;
233 if (state == SNDRV_EMUX_ST_OFF) {
234 if (vp->ch < 0) {
235 if (active_only)
236 continue;
237 bp = best + V_FREE;
238 } else
239 bp = best + V_OFF;
240 }
241 else if (state == SNDRV_EMUX_ST_RELEASED ||
242 state == SNDRV_EMUX_ST_PENDING) {
243 bp = best + V_RELEASED;
244 #if 0
245 val = snd_emu10k1_ptr_read(hw, CVCF_CURRENTVOL, vp->ch);
246 if (! val)
247 bp = best + V_OFF;
248 #endif
249 }
250 else if (state == SNDRV_EMUX_ST_STANDBY)
251 continue;
252 else if (state & SNDRV_EMUX_ST_ON)
253 bp = best + V_PLAYING;
254 else
255 continue;
256
257 /* check if sample is finished playing (non-looping only) */
258 if (bp != best + V_OFF && bp != best + V_FREE &&
259 (vp->reg.sample_mode & SNDRV_SFNT_SAMPLE_SINGLESHOT)) {
260 val = snd_emu10k1_ptr_read(hw, CCCA_CURRADDR, vp->ch);
261 if (val >= vp->reg.loopstart)
262 bp = best + V_OFF;
263 }
264
265 if (vp->time < bp->time) {
266 bp->time = vp->time;
267 bp->voice = i;
268 }
269 }
270 }
271
272 /*
273 * get an empty voice
274 *
275 * emu->voice_lock is already held.
276 */
277 static snd_emux_voice_t *
278 get_voice(snd_emux_t *emu, snd_emux_port_t *port)
279 {
280 emu10k1_t *hw;
281 snd_emux_voice_t *vp;
282 best_voice_t best[V_END];
283 int i;
284
285 hw = emu->hw;
286
287 lookup_voices(emu, hw, best, 0);
288 for (i = 0; i < V_END; i++) {
289 if (best[i].voice >= 0) {
290 vp = &emu->voices[best[i].voice];
291 if (vp->ch < 0) {
292 /* allocate a voice */
293 emu10k1_voice_t *hwvoice;
294 if (snd_emu10k1_voice_alloc(hw, EMU10K1_SYNTH, 1, &hwvoice) < 0 || hwvoice == NULL)
295 continue;
296 vp->ch = hwvoice->number;
297 emu->num_voices++;
298 }
299 return vp;
300 }
301 }
302
303 /* not found */
304 return NULL;
305 }
306
307 /*
308 * prepare envelopes and LFOs
309 */
310 static int
311 start_voice(snd_emux_voice_t *vp)
312 {
313 unsigned int temp;
314 int ch;
315 unsigned int addr, mapped_offset;
316 snd_midi_channel_t *chan;
317 emu10k1_t *hw;
318 emu10k1_memblk_t *emem;
319
320 hw = vp->hw;
321 ch = vp->ch;
322 snd_assert(ch >= 0, return -EINVAL);
323 chan = vp->chan;
324
325 emem = (emu10k1_memblk_t *)vp->block;
326 if (emem == NULL)
327 return -EINVAL;
328 emem->map_locked++;
329 if (snd_emu10k1_memblk_map(hw, emem) < 0) {
330 // printk("emu: cannot map!\n");
331 return -ENOMEM;
332 }
333 mapped_offset = snd_emu10k1_memblk_offset(emem) >> 1;
334 vp->reg.start += mapped_offset;
335 vp->reg.end += mapped_offset;
336 vp->reg.loopstart += mapped_offset;
337 vp->reg.loopend += mapped_offset;
338
339 /* set channel routing */
340 /* A = left(0), B = right(1), C = reverb(c), D = chorus(d) */
341 if (hw->audigy) {
342 temp = FXBUS_MIDI_LEFT | (FXBUS_MIDI_RIGHT << 8) |
343 (FXBUS_MIDI_REVERB << 16) | (FXBUS_MIDI_CHORUS << 24);
344 snd_emu10k1_ptr_write(hw, A_FXRT1, ch, temp);
345 } else {
346 temp = (FXBUS_MIDI_LEFT << 16) | (FXBUS_MIDI_RIGHT << 20) |
347 (FXBUS_MIDI_REVERB << 24) | (FXBUS_MIDI_CHORUS << 28);
348 snd_emu10k1_ptr_write(hw, FXRT, ch, temp);
349 }
350
351 /* channel to be silent and idle */
352 snd_emu10k1_ptr_write(hw, DCYSUSV, ch, 0x0080);
353 snd_emu10k1_ptr_write(hw, VTFT, ch, 0x0000FFFF);
354 snd_emu10k1_ptr_write(hw, CVCF, ch, 0x0000FFFF);
355 snd_emu10k1_ptr_write(hw, PTRX, ch, 0);
356 snd_emu10k1_ptr_write(hw, CPF, ch, 0);
357
358 /* set pitch offset */
359 snd_emu10k1_ptr_write(hw, IP, vp->ch, vp->apitch);
360
361 /* set envelope parameters */
362 snd_emu10k1_ptr_write(hw, ENVVAL, ch, vp->reg.parm.moddelay);
363 snd_emu10k1_ptr_write(hw, ATKHLDM, ch, vp->reg.parm.modatkhld);
364 snd_emu10k1_ptr_write(hw, DCYSUSM, ch, vp->reg.parm.moddcysus);
365 snd_emu10k1_ptr_write(hw, ENVVOL, ch, vp->reg.parm.voldelay);
366 snd_emu10k1_ptr_write(hw, ATKHLDV, ch, vp->reg.parm.volatkhld);
367 /* decay/sustain parameter for volume envelope is used
368 for triggerg the voice */
369
370 /* cutoff and volume */
371 temp = (unsigned int)vp->acutoff << 8 | (unsigned char)vp->avol;
372 snd_emu10k1_ptr_write(hw, IFATN, vp->ch, temp);
373
374 /* modulation envelope heights */
375 snd_emu10k1_ptr_write(hw, PEFE, ch, vp->reg.parm.pefe);
376
377 /* lfo1/2 delay */
378 snd_emu10k1_ptr_write(hw, LFOVAL1, ch, vp->reg.parm.lfo1delay);
379 snd_emu10k1_ptr_write(hw, LFOVAL2, ch, vp->reg.parm.lfo2delay);
380
381 /* lfo1 pitch & cutoff shift */
382 set_fmmod(hw, vp);
383 /* lfo1 volume & freq */
384 snd_emu10k1_ptr_write(hw, TREMFRQ, vp->ch, vp->reg.parm.tremfrq);
385 /* lfo2 pitch & freq */
386 set_fm2frq2(hw, vp);
387
388 /* reverb and loop start (reverb 8bit, MSB) */
389 temp = vp->reg.parm.reverb;
390 temp += (int)vp->chan->control[MIDI_CTL_E1_REVERB_DEPTH] * 9 / 10;
391 LIMITMAX(temp, 255);
392 addr = vp->reg.loopstart;
393 snd_emu10k1_ptr_write(hw, PSST, vp->ch, (temp << 24) | addr);
394
395 /* chorus & loop end (chorus 8bit, MSB) */
396 addr = vp->reg.loopend;
397 temp = vp->reg.parm.chorus;
398 temp += (int)chan->control[MIDI_CTL_E3_CHORUS_DEPTH] * 9 / 10;
399 LIMITMAX(temp, 255);
400 temp = (temp <<24) | addr;
401 snd_emu10k1_ptr_write(hw, DSL, ch, temp);
402
403 /* clear filter delay memory */
404 snd_emu10k1_ptr_write(hw, Z1, ch, 0);
405 snd_emu10k1_ptr_write(hw, Z2, ch, 0);
406
407 /* invalidate maps */
408 temp = (hw->silent_page.addr << 1) | MAP_PTI_MASK;
409 snd_emu10k1_ptr_write(hw, MAPA, ch, temp);
410 snd_emu10k1_ptr_write(hw, MAPB, ch, temp);
411 #if 0
412 /* cache */
413 {
414 unsigned int val, sample;
415 val = 32;
416 if (vp->reg.sample_mode & SNDRV_SFNT_SAMPLE_8BITS)
417 sample = 0x80808080;
418 else {
419 sample = 0;
420 val *= 2;
421 }
422
423 /* cache */
424 snd_emu10k1_ptr_write(hw, CCR, ch, 0x1c << 16);
425 snd_emu10k1_ptr_write(hw, CDE, ch, sample);
426 snd_emu10k1_ptr_write(hw, CDF, ch, sample);
427
428 /* invalidate maps */
429 temp = ((unsigned int)hw->silent_page.addr << 1) | MAP_PTI_MASK;
430 snd_emu10k1_ptr_write(hw, MAPA, ch, temp);
431 snd_emu10k1_ptr_write(hw, MAPB, ch, temp);
432
433 /* fill cache */
434 val -= 4;
435 val <<= 25;
436 val |= 0x1c << 16;
437 snd_emu10k1_ptr_write(hw, CCR, ch, val);
438 }
439 #endif
440
441 /* Q & current address (Q 4bit value, MSB) */
442 addr = vp->reg.start;
443 temp = vp->reg.parm.filterQ;
444 temp = (temp<<28) | addr;
445 if (vp->apitch < 0xe400)
446 temp |= CCCA_INTERPROM_0;
447 else {
448 unsigned int shift = (vp->apitch - 0xe000) >> 10;
449 temp |= shift << 25;
450 }
451 if (vp->reg.sample_mode & SNDRV_SFNT_SAMPLE_8BITS)
452 temp |= CCCA_8BITSELECT;
453 snd_emu10k1_ptr_write(hw, CCCA, ch, temp);
454
455 /* reset volume */
456 temp = (unsigned int)vp->vtarget << 16;
457 snd_emu10k1_ptr_write(hw, VTFT, ch, temp | vp->ftarget);
458 snd_emu10k1_ptr_write(hw, CVCF, ch, temp | 0xff00);
459 return 0;
460 }
461
462 /*
463 * Start envelope
464 */
465 static void
466 trigger_voice(snd_emux_voice_t *vp)
467 {
468 unsigned int temp, ptarget;
469 emu10k1_t *hw;
470 emu10k1_memblk_t *emem;
471
472 hw = vp->hw;
473
474 emem = (emu10k1_memblk_t *)vp->block;
475 if (! emem || emem->mapped_page < 0)
476 return; /* not mapped */
477
478 #if 0
479 ptarget = (unsigned int)vp->ptarget << 16;
480 #else
481 ptarget = IP_TO_CP(vp->apitch);
482 #endif
483 /* set pitch target and pan (volume) */
484 temp = ptarget | (vp->apan << 8) | vp->aaux;
485 snd_emu10k1_ptr_write(hw, PTRX, vp->ch, temp);
486
487 /* pitch target */
488 snd_emu10k1_ptr_write(hw, CPF, vp->ch, ptarget);
489
490 /* trigger voice */
491 snd_emu10k1_ptr_write(hw, DCYSUSV, vp->ch, vp->reg.parm.voldcysus|DCYSUSV_CHANNELENABLE_MASK);
492 }
493
494 #define MOD_SENSE 18
495
496 /* set lfo1 modulation height and cutoff */
497 static void
498 set_fmmod(emu10k1_t *hw, snd_emux_voice_t *vp)
499 {
500 unsigned short fmmod;
501 short pitch;
502 unsigned char cutoff;
503 int modulation;
504
505 pitch = (char)(vp->reg.parm.fmmod>>8);
506 cutoff = (vp->reg.parm.fmmod & 0xff);
507 modulation = vp->chan->gm_modulation + vp->chan->midi_pressure;
508 pitch += (MOD_SENSE * modulation) / 1200;
509 LIMITVALUE(pitch, -128, 127);
510 fmmod = ((unsigned char)pitch<<8) | cutoff;
511 snd_emu10k1_ptr_write(hw, FMMOD, vp->ch, fmmod);
512 }
513
514 /* set lfo2 pitch & frequency */
515 static void
516 set_fm2frq2(emu10k1_t *hw, snd_emux_voice_t *vp)
517 {
518 unsigned short fm2frq2;
519 short pitch;
520 unsigned char freq;
521 int modulation;
522
523 pitch = (char)(vp->reg.parm.fm2frq2>>8);
524 freq = vp->reg.parm.fm2frq2 & 0xff;
525 modulation = vp->chan->gm_modulation + vp->chan->midi_pressure;
526 pitch += (MOD_SENSE * modulation) / 1200;
527 LIMITVALUE(pitch, -128, 127);
528 fm2frq2 = ((unsigned char)pitch<<8) | freq;
529 snd_emu10k1_ptr_write(hw, FM2FRQ2, vp->ch, fm2frq2);
530 }
531
532 /* set filterQ */
533 static void
534 set_filterQ(emu10k1_t *hw, snd_emux_voice_t *vp)
535 {
536 unsigned int val;
537 val = snd_emu10k1_ptr_read(hw, CCCA, vp->ch) & ~CCCA_RESONANCE;
538 val |= (vp->reg.parm.filterQ << 28);
539 snd_emu10k1_ptr_write(hw, CCCA, vp->ch, val);
540 }
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