Commit | Line | Data |
---|---|---|
1da177e4 LT |
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 | ||
d81a6d71 | 21 | #include <linux/export.h> |
1da177e4 LT |
22 | #include "emu10k1_synth_local.h" |
23 | #include <sound/asoundef.h> | |
24 | ||
25 | /* voice status */ | |
26 | enum { | |
27 | V_FREE=0, V_OFF, V_RELEASED, V_PLAYING, V_END | |
28 | }; | |
29 | ||
30 | /* Keeps track of what we are finding */ | |
eb4698f3 | 31 | struct best_voice { |
1da177e4 LT |
32 | unsigned int time; |
33 | int voice; | |
eb4698f3 | 34 | }; |
1da177e4 LT |
35 | |
36 | /* | |
37 | * prototypes | |
38 | */ | |
c94fa4c9 | 39 | static void lookup_voices(struct snd_emux *emux, struct snd_emu10k1 *hw, |
eb4698f3 | 40 | struct best_voice *best, int active_only); |
c94fa4c9 | 41 | static struct snd_emux_voice *get_voice(struct snd_emux *emux, |
eb4698f3 TI |
42 | struct snd_emux_port *port); |
43 | static int start_voice(struct snd_emux_voice *vp); | |
44 | static void trigger_voice(struct snd_emux_voice *vp); | |
45 | static void release_voice(struct snd_emux_voice *vp); | |
46 | static void update_voice(struct snd_emux_voice *vp, int update); | |
47 | static void terminate_voice(struct snd_emux_voice *vp); | |
48 | static void free_voice(struct snd_emux_voice *vp); | |
eb4698f3 TI |
49 | static void set_fmmod(struct snd_emu10k1 *hw, struct snd_emux_voice *vp); |
50 | static void set_fm2frq2(struct snd_emu10k1 *hw, struct snd_emux_voice *vp); | |
51 | static void set_filterQ(struct snd_emu10k1 *hw, struct snd_emux_voice *vp); | |
1da177e4 LT |
52 | |
53 | /* | |
54 | * Ensure a value is between two points | |
55 | * macro evaluates its args more than once, so changed to upper-case. | |
56 | */ | |
57 | #define LIMITVALUE(x, a, b) do { if ((x) < (a)) (x) = (a); else if ((x) > (b)) (x) = (b); } while (0) | |
58 | #define LIMITMAX(x, a) do {if ((x) > (a)) (x) = (a); } while (0) | |
59 | ||
60 | ||
61 | /* | |
62 | * set up operators | |
63 | */ | |
eb4698f3 | 64 | static struct snd_emux_operators emu10k1_ops = { |
1da177e4 LT |
65 | .owner = THIS_MODULE, |
66 | .get_voice = get_voice, | |
67 | .prepare = start_voice, | |
68 | .trigger = trigger_voice, | |
69 | .release = release_voice, | |
70 | .update = update_voice, | |
71 | .terminate = terminate_voice, | |
72 | .free_voice = free_voice, | |
73 | .sample_new = snd_emu10k1_sample_new, | |
74 | .sample_free = snd_emu10k1_sample_free, | |
75 | }; | |
76 | ||
77 | void | |
c94fa4c9 | 78 | snd_emu10k1_ops_setup(struct snd_emux *emux) |
1da177e4 | 79 | { |
c94fa4c9 | 80 | emux->ops = emu10k1_ops; |
1da177e4 LT |
81 | } |
82 | ||
83 | ||
84 | /* | |
85 | * get more voice for pcm | |
86 | * | |
87 | * terminate most inactive voice and give it as a pcm voice. | |
95926035 TI |
88 | * |
89 | * voice_lock is already held. | |
1da177e4 LT |
90 | */ |
91 | int | |
eb4698f3 | 92 | snd_emu10k1_synth_get_voice(struct snd_emu10k1 *hw) |
1da177e4 | 93 | { |
eb4698f3 TI |
94 | struct snd_emux *emu; |
95 | struct snd_emux_voice *vp; | |
96 | struct best_voice best[V_END]; | |
1da177e4 LT |
97 | int i; |
98 | ||
99 | emu = hw->synth; | |
100 | ||
1da177e4 LT |
101 | lookup_voices(emu, hw, best, 1); /* no OFF voices */ |
102 | for (i = 0; i < V_END; i++) { | |
103 | if (best[i].voice >= 0) { | |
104 | int ch; | |
105 | vp = &emu->voices[best[i].voice]; | |
106 | if ((ch = vp->ch) < 0) { | |
28a97c19 | 107 | /* |
6f002b02 | 108 | dev_warn(emu->card->dev, |
28a97c19 TI |
109 | "synth_get_voice: ch < 0 (%d) ??", i); |
110 | */ | |
1da177e4 LT |
111 | continue; |
112 | } | |
113 | vp->emu->num_voices--; | |
114 | vp->ch = -1; | |
115 | vp->state = SNDRV_EMUX_ST_OFF; | |
1da177e4 LT |
116 | return ch; |
117 | } | |
118 | } | |
1da177e4 LT |
119 | |
120 | /* not found */ | |
121 | return -ENOMEM; | |
122 | } | |
123 | ||
124 | ||
125 | /* | |
126 | * turn off the voice (not terminated) | |
127 | */ | |
128 | static void | |
eb4698f3 | 129 | release_voice(struct snd_emux_voice *vp) |
1da177e4 LT |
130 | { |
131 | int dcysusv; | |
eb4698f3 | 132 | struct snd_emu10k1 *hw; |
1da177e4 LT |
133 | |
134 | hw = vp->hw; | |
135 | dcysusv = 0x8000 | (unsigned char)vp->reg.parm.modrelease; | |
136 | snd_emu10k1_ptr_write(hw, DCYSUSM, vp->ch, dcysusv); | |
137 | dcysusv = 0x8000 | (unsigned char)vp->reg.parm.volrelease | DCYSUSV_CHANNELENABLE_MASK; | |
138 | snd_emu10k1_ptr_write(hw, DCYSUSV, vp->ch, dcysusv); | |
139 | } | |
140 | ||
141 | ||
142 | /* | |
143 | * terminate the voice | |
144 | */ | |
145 | static void | |
eb4698f3 | 146 | terminate_voice(struct snd_emux_voice *vp) |
1da177e4 | 147 | { |
eb4698f3 | 148 | struct snd_emu10k1 *hw; |
1da177e4 | 149 | |
da3cec35 TI |
150 | if (snd_BUG_ON(!vp)) |
151 | return; | |
1da177e4 LT |
152 | hw = vp->hw; |
153 | snd_emu10k1_ptr_write(hw, DCYSUSV, vp->ch, 0x807f | DCYSUSV_CHANNELENABLE_MASK); | |
154 | if (vp->block) { | |
eb4698f3 TI |
155 | struct snd_emu10k1_memblk *emem; |
156 | emem = (struct snd_emu10k1_memblk *)vp->block; | |
1da177e4 LT |
157 | if (emem->map_locked > 0) |
158 | emem->map_locked--; | |
159 | } | |
160 | } | |
161 | ||
162 | /* | |
163 | * release the voice to system | |
164 | */ | |
165 | static void | |
eb4698f3 | 166 | free_voice(struct snd_emux_voice *vp) |
1da177e4 | 167 | { |
eb4698f3 | 168 | struct snd_emu10k1 *hw; |
1da177e4 LT |
169 | |
170 | hw = vp->hw; | |
c94fa4c9 JCD |
171 | /* FIXME: emu10k1_synth is broken. */ |
172 | /* This can get called with hw == 0 */ | |
173 | /* Problem apparent on plug, unplug then plug */ | |
174 | /* on the Audigy 2 ZS Notebook. */ | |
175 | if (hw && (vp->ch >= 0)) { | |
1da177e4 LT |
176 | snd_emu10k1_ptr_write(hw, IFATN, vp->ch, 0xff00); |
177 | snd_emu10k1_ptr_write(hw, DCYSUSV, vp->ch, 0x807f | DCYSUSV_CHANNELENABLE_MASK); | |
178 | // snd_emu10k1_ptr_write(hw, DCYSUSV, vp->ch, 0); | |
179 | snd_emu10k1_ptr_write(hw, VTFT, vp->ch, 0xffff); | |
180 | snd_emu10k1_ptr_write(hw, CVCF, vp->ch, 0xffff); | |
181 | snd_emu10k1_voice_free(hw, &hw->voices[vp->ch]); | |
182 | vp->emu->num_voices--; | |
183 | vp->ch = -1; | |
184 | } | |
185 | } | |
186 | ||
187 | ||
188 | /* | |
189 | * update registers | |
190 | */ | |
191 | static void | |
eb4698f3 | 192 | update_voice(struct snd_emux_voice *vp, int update) |
1da177e4 | 193 | { |
eb4698f3 | 194 | struct snd_emu10k1 *hw; |
1da177e4 LT |
195 | |
196 | hw = vp->hw; | |
197 | if (update & SNDRV_EMUX_UPDATE_VOLUME) | |
198 | snd_emu10k1_ptr_write(hw, IFATN_ATTENUATION, vp->ch, vp->avol); | |
199 | if (update & SNDRV_EMUX_UPDATE_PITCH) | |
200 | snd_emu10k1_ptr_write(hw, IP, vp->ch, vp->apitch); | |
201 | if (update & SNDRV_EMUX_UPDATE_PAN) { | |
202 | snd_emu10k1_ptr_write(hw, PTRX_FXSENDAMOUNT_A, vp->ch, vp->apan); | |
203 | snd_emu10k1_ptr_write(hw, PTRX_FXSENDAMOUNT_B, vp->ch, vp->aaux); | |
204 | } | |
205 | if (update & SNDRV_EMUX_UPDATE_FMMOD) | |
206 | set_fmmod(hw, vp); | |
207 | if (update & SNDRV_EMUX_UPDATE_TREMFREQ) | |
208 | snd_emu10k1_ptr_write(hw, TREMFRQ, vp->ch, vp->reg.parm.tremfrq); | |
209 | if (update & SNDRV_EMUX_UPDATE_FM2FRQ2) | |
210 | set_fm2frq2(hw, vp); | |
211 | if (update & SNDRV_EMUX_UPDATE_Q) | |
212 | set_filterQ(hw, vp); | |
213 | } | |
214 | ||
215 | ||
216 | /* | |
217 | * look up voice table - get the best voice in order of preference | |
218 | */ | |
219 | /* spinlock held! */ | |
220 | static void | |
eb4698f3 TI |
221 | lookup_voices(struct snd_emux *emu, struct snd_emu10k1 *hw, |
222 | struct best_voice *best, int active_only) | |
1da177e4 | 223 | { |
eb4698f3 TI |
224 | struct snd_emux_voice *vp; |
225 | struct best_voice *bp; | |
1da177e4 LT |
226 | int i; |
227 | ||
228 | for (i = 0; i < V_END; i++) { | |
395d9dd5 | 229 | best[i].time = (unsigned int)-1; /* XXX MAX_?INT really */ |
1da177e4 LT |
230 | best[i].voice = -1; |
231 | } | |
232 | ||
233 | /* | |
234 | * Go through them all and get a best one to use. | |
235 | * NOTE: could also look at volume and pick the quietest one. | |
236 | */ | |
237 | for (i = 0; i < emu->max_voices; i++) { | |
238 | int state, val; | |
239 | ||
240 | vp = &emu->voices[i]; | |
241 | state = vp->state; | |
242 | if (state == SNDRV_EMUX_ST_OFF) { | |
243 | if (vp->ch < 0) { | |
244 | if (active_only) | |
245 | continue; | |
246 | bp = best + V_FREE; | |
247 | } else | |
248 | bp = best + V_OFF; | |
249 | } | |
250 | else if (state == SNDRV_EMUX_ST_RELEASED || | |
251 | state == SNDRV_EMUX_ST_PENDING) { | |
252 | bp = best + V_RELEASED; | |
fc207733 | 253 | #if 1 |
1da177e4 LT |
254 | val = snd_emu10k1_ptr_read(hw, CVCF_CURRENTVOL, vp->ch); |
255 | if (! val) | |
256 | bp = best + V_OFF; | |
257 | #endif | |
258 | } | |
259 | else if (state == SNDRV_EMUX_ST_STANDBY) | |
260 | continue; | |
261 | else if (state & SNDRV_EMUX_ST_ON) | |
262 | bp = best + V_PLAYING; | |
263 | else | |
264 | continue; | |
265 | ||
266 | /* check if sample is finished playing (non-looping only) */ | |
267 | if (bp != best + V_OFF && bp != best + V_FREE && | |
268 | (vp->reg.sample_mode & SNDRV_SFNT_SAMPLE_SINGLESHOT)) { | |
269 | val = snd_emu10k1_ptr_read(hw, CCCA_CURRADDR, vp->ch); | |
270 | if (val >= vp->reg.loopstart) | |
271 | bp = best + V_OFF; | |
272 | } | |
273 | ||
274 | if (vp->time < bp->time) { | |
275 | bp->time = vp->time; | |
276 | bp->voice = i; | |
277 | } | |
278 | } | |
279 | } | |
280 | ||
281 | /* | |
282 | * get an empty voice | |
283 | * | |
284 | * emu->voice_lock is already held. | |
285 | */ | |
eb4698f3 TI |
286 | static struct snd_emux_voice * |
287 | get_voice(struct snd_emux *emu, struct snd_emux_port *port) | |
1da177e4 | 288 | { |
eb4698f3 TI |
289 | struct snd_emu10k1 *hw; |
290 | struct snd_emux_voice *vp; | |
291 | struct best_voice best[V_END]; | |
1da177e4 LT |
292 | int i; |
293 | ||
294 | hw = emu->hw; | |
295 | ||
296 | lookup_voices(emu, hw, best, 0); | |
297 | for (i = 0; i < V_END; i++) { | |
298 | if (best[i].voice >= 0) { | |
299 | vp = &emu->voices[best[i].voice]; | |
300 | if (vp->ch < 0) { | |
301 | /* allocate a voice */ | |
eb4698f3 | 302 | struct snd_emu10k1_voice *hwvoice; |
1da177e4 LT |
303 | if (snd_emu10k1_voice_alloc(hw, EMU10K1_SYNTH, 1, &hwvoice) < 0 || hwvoice == NULL) |
304 | continue; | |
305 | vp->ch = hwvoice->number; | |
306 | emu->num_voices++; | |
307 | } | |
308 | return vp; | |
309 | } | |
310 | } | |
311 | ||
312 | /* not found */ | |
313 | return NULL; | |
314 | } | |
315 | ||
316 | /* | |
317 | * prepare envelopes and LFOs | |
318 | */ | |
319 | static int | |
eb4698f3 | 320 | start_voice(struct snd_emux_voice *vp) |
1da177e4 LT |
321 | { |
322 | unsigned int temp; | |
323 | int ch; | |
324 | unsigned int addr, mapped_offset; | |
eb4698f3 TI |
325 | struct snd_midi_channel *chan; |
326 | struct snd_emu10k1 *hw; | |
327 | struct snd_emu10k1_memblk *emem; | |
1da177e4 LT |
328 | |
329 | hw = vp->hw; | |
330 | ch = vp->ch; | |
da3cec35 TI |
331 | if (snd_BUG_ON(ch < 0)) |
332 | return -EINVAL; | |
1da177e4 LT |
333 | chan = vp->chan; |
334 | ||
eb4698f3 | 335 | emem = (struct snd_emu10k1_memblk *)vp->block; |
1da177e4 LT |
336 | if (emem == NULL) |
337 | return -EINVAL; | |
338 | emem->map_locked++; | |
339 | if (snd_emu10k1_memblk_map(hw, emem) < 0) { | |
6f002b02 | 340 | /* dev_err(hw->card->devK, "emu: cannot map!\n"); */ |
1da177e4 LT |
341 | return -ENOMEM; |
342 | } | |
343 | mapped_offset = snd_emu10k1_memblk_offset(emem) >> 1; | |
344 | vp->reg.start += mapped_offset; | |
345 | vp->reg.end += mapped_offset; | |
346 | vp->reg.loopstart += mapped_offset; | |
347 | vp->reg.loopend += mapped_offset; | |
348 | ||
349 | /* set channel routing */ | |
350 | /* A = left(0), B = right(1), C = reverb(c), D = chorus(d) */ | |
351 | if (hw->audigy) { | |
352 | temp = FXBUS_MIDI_LEFT | (FXBUS_MIDI_RIGHT << 8) | | |
353 | (FXBUS_MIDI_REVERB << 16) | (FXBUS_MIDI_CHORUS << 24); | |
354 | snd_emu10k1_ptr_write(hw, A_FXRT1, ch, temp); | |
355 | } else { | |
356 | temp = (FXBUS_MIDI_LEFT << 16) | (FXBUS_MIDI_RIGHT << 20) | | |
357 | (FXBUS_MIDI_REVERB << 24) | (FXBUS_MIDI_CHORUS << 28); | |
358 | snd_emu10k1_ptr_write(hw, FXRT, ch, temp); | |
359 | } | |
360 | ||
361 | /* channel to be silent and idle */ | |
fc207733 | 362 | snd_emu10k1_ptr_write(hw, DCYSUSV, ch, 0x0000); |
1da177e4 LT |
363 | snd_emu10k1_ptr_write(hw, VTFT, ch, 0x0000FFFF); |
364 | snd_emu10k1_ptr_write(hw, CVCF, ch, 0x0000FFFF); | |
365 | snd_emu10k1_ptr_write(hw, PTRX, ch, 0); | |
366 | snd_emu10k1_ptr_write(hw, CPF, ch, 0); | |
367 | ||
368 | /* set pitch offset */ | |
369 | snd_emu10k1_ptr_write(hw, IP, vp->ch, vp->apitch); | |
370 | ||
371 | /* set envelope parameters */ | |
372 | snd_emu10k1_ptr_write(hw, ENVVAL, ch, vp->reg.parm.moddelay); | |
373 | snd_emu10k1_ptr_write(hw, ATKHLDM, ch, vp->reg.parm.modatkhld); | |
374 | snd_emu10k1_ptr_write(hw, DCYSUSM, ch, vp->reg.parm.moddcysus); | |
375 | snd_emu10k1_ptr_write(hw, ENVVOL, ch, vp->reg.parm.voldelay); | |
376 | snd_emu10k1_ptr_write(hw, ATKHLDV, ch, vp->reg.parm.volatkhld); | |
377 | /* decay/sustain parameter for volume envelope is used | |
378 | for triggerg the voice */ | |
379 | ||
380 | /* cutoff and volume */ | |
381 | temp = (unsigned int)vp->acutoff << 8 | (unsigned char)vp->avol; | |
382 | snd_emu10k1_ptr_write(hw, IFATN, vp->ch, temp); | |
383 | ||
384 | /* modulation envelope heights */ | |
385 | snd_emu10k1_ptr_write(hw, PEFE, ch, vp->reg.parm.pefe); | |
386 | ||
387 | /* lfo1/2 delay */ | |
388 | snd_emu10k1_ptr_write(hw, LFOVAL1, ch, vp->reg.parm.lfo1delay); | |
389 | snd_emu10k1_ptr_write(hw, LFOVAL2, ch, vp->reg.parm.lfo2delay); | |
390 | ||
391 | /* lfo1 pitch & cutoff shift */ | |
392 | set_fmmod(hw, vp); | |
393 | /* lfo1 volume & freq */ | |
394 | snd_emu10k1_ptr_write(hw, TREMFRQ, vp->ch, vp->reg.parm.tremfrq); | |
395 | /* lfo2 pitch & freq */ | |
396 | set_fm2frq2(hw, vp); | |
397 | ||
398 | /* reverb and loop start (reverb 8bit, MSB) */ | |
399 | temp = vp->reg.parm.reverb; | |
400 | temp += (int)vp->chan->control[MIDI_CTL_E1_REVERB_DEPTH] * 9 / 10; | |
401 | LIMITMAX(temp, 255); | |
402 | addr = vp->reg.loopstart; | |
403 | snd_emu10k1_ptr_write(hw, PSST, vp->ch, (temp << 24) | addr); | |
404 | ||
405 | /* chorus & loop end (chorus 8bit, MSB) */ | |
406 | addr = vp->reg.loopend; | |
407 | temp = vp->reg.parm.chorus; | |
408 | temp += (int)chan->control[MIDI_CTL_E3_CHORUS_DEPTH] * 9 / 10; | |
409 | LIMITMAX(temp, 255); | |
410 | temp = (temp <<24) | addr; | |
411 | snd_emu10k1_ptr_write(hw, DSL, ch, temp); | |
412 | ||
413 | /* clear filter delay memory */ | |
414 | snd_emu10k1_ptr_write(hw, Z1, ch, 0); | |
415 | snd_emu10k1_ptr_write(hw, Z2, ch, 0); | |
416 | ||
417 | /* invalidate maps */ | |
7241ea55 | 418 | temp = (hw->silent_page.addr << hw->address_mode) | (hw->address_mode ? MAP_PTI_MASK1 : MAP_PTI_MASK0); |
1da177e4 LT |
419 | snd_emu10k1_ptr_write(hw, MAPA, ch, temp); |
420 | snd_emu10k1_ptr_write(hw, MAPB, ch, temp); | |
421 | #if 0 | |
422 | /* cache */ | |
423 | { | |
424 | unsigned int val, sample; | |
425 | val = 32; | |
426 | if (vp->reg.sample_mode & SNDRV_SFNT_SAMPLE_8BITS) | |
427 | sample = 0x80808080; | |
428 | else { | |
429 | sample = 0; | |
430 | val *= 2; | |
431 | } | |
432 | ||
433 | /* cache */ | |
434 | snd_emu10k1_ptr_write(hw, CCR, ch, 0x1c << 16); | |
435 | snd_emu10k1_ptr_write(hw, CDE, ch, sample); | |
436 | snd_emu10k1_ptr_write(hw, CDF, ch, sample); | |
437 | ||
438 | /* invalidate maps */ | |
7241ea55 | 439 | temp = ((unsigned int)hw->silent_page.addr << hw_address_mode) | (hw->address_mode ? MAP_PTI_MASK1 : MAP_PTI_MASK0); |
1da177e4 LT |
440 | snd_emu10k1_ptr_write(hw, MAPA, ch, temp); |
441 | snd_emu10k1_ptr_write(hw, MAPB, ch, temp); | |
442 | ||
443 | /* fill cache */ | |
444 | val -= 4; | |
445 | val <<= 25; | |
446 | val |= 0x1c << 16; | |
447 | snd_emu10k1_ptr_write(hw, CCR, ch, val); | |
448 | } | |
449 | #endif | |
450 | ||
451 | /* Q & current address (Q 4bit value, MSB) */ | |
452 | addr = vp->reg.start; | |
453 | temp = vp->reg.parm.filterQ; | |
454 | temp = (temp<<28) | addr; | |
455 | if (vp->apitch < 0xe400) | |
456 | temp |= CCCA_INTERPROM_0; | |
457 | else { | |
458 | unsigned int shift = (vp->apitch - 0xe000) >> 10; | |
459 | temp |= shift << 25; | |
460 | } | |
461 | if (vp->reg.sample_mode & SNDRV_SFNT_SAMPLE_8BITS) | |
462 | temp |= CCCA_8BITSELECT; | |
463 | snd_emu10k1_ptr_write(hw, CCCA, ch, temp); | |
464 | ||
465 | /* reset volume */ | |
466 | temp = (unsigned int)vp->vtarget << 16; | |
467 | snd_emu10k1_ptr_write(hw, VTFT, ch, temp | vp->ftarget); | |
468 | snd_emu10k1_ptr_write(hw, CVCF, ch, temp | 0xff00); | |
469 | return 0; | |
470 | } | |
471 | ||
472 | /* | |
473 | * Start envelope | |
474 | */ | |
475 | static void | |
eb4698f3 | 476 | trigger_voice(struct snd_emux_voice *vp) |
1da177e4 LT |
477 | { |
478 | unsigned int temp, ptarget; | |
eb4698f3 TI |
479 | struct snd_emu10k1 *hw; |
480 | struct snd_emu10k1_memblk *emem; | |
1da177e4 LT |
481 | |
482 | hw = vp->hw; | |
483 | ||
eb4698f3 | 484 | emem = (struct snd_emu10k1_memblk *)vp->block; |
1da177e4 LT |
485 | if (! emem || emem->mapped_page < 0) |
486 | return; /* not mapped */ | |
487 | ||
488 | #if 0 | |
489 | ptarget = (unsigned int)vp->ptarget << 16; | |
490 | #else | |
491 | ptarget = IP_TO_CP(vp->apitch); | |
492 | #endif | |
493 | /* set pitch target and pan (volume) */ | |
494 | temp = ptarget | (vp->apan << 8) | vp->aaux; | |
495 | snd_emu10k1_ptr_write(hw, PTRX, vp->ch, temp); | |
496 | ||
497 | /* pitch target */ | |
498 | snd_emu10k1_ptr_write(hw, CPF, vp->ch, ptarget); | |
499 | ||
500 | /* trigger voice */ | |
501 | snd_emu10k1_ptr_write(hw, DCYSUSV, vp->ch, vp->reg.parm.voldcysus|DCYSUSV_CHANNELENABLE_MASK); | |
502 | } | |
503 | ||
504 | #define MOD_SENSE 18 | |
505 | ||
506 | /* set lfo1 modulation height and cutoff */ | |
507 | static void | |
eb4698f3 | 508 | set_fmmod(struct snd_emu10k1 *hw, struct snd_emux_voice *vp) |
1da177e4 LT |
509 | { |
510 | unsigned short fmmod; | |
511 | short pitch; | |
512 | unsigned char cutoff; | |
513 | int modulation; | |
514 | ||
515 | pitch = (char)(vp->reg.parm.fmmod>>8); | |
516 | cutoff = (vp->reg.parm.fmmod & 0xff); | |
517 | modulation = vp->chan->gm_modulation + vp->chan->midi_pressure; | |
518 | pitch += (MOD_SENSE * modulation) / 1200; | |
519 | LIMITVALUE(pitch, -128, 127); | |
520 | fmmod = ((unsigned char)pitch<<8) | cutoff; | |
521 | snd_emu10k1_ptr_write(hw, FMMOD, vp->ch, fmmod); | |
522 | } | |
523 | ||
524 | /* set lfo2 pitch & frequency */ | |
525 | static void | |
eb4698f3 | 526 | set_fm2frq2(struct snd_emu10k1 *hw, struct snd_emux_voice *vp) |
1da177e4 LT |
527 | { |
528 | unsigned short fm2frq2; | |
529 | short pitch; | |
530 | unsigned char freq; | |
531 | int modulation; | |
532 | ||
533 | pitch = (char)(vp->reg.parm.fm2frq2>>8); | |
534 | freq = vp->reg.parm.fm2frq2 & 0xff; | |
535 | modulation = vp->chan->gm_modulation + vp->chan->midi_pressure; | |
536 | pitch += (MOD_SENSE * modulation) / 1200; | |
537 | LIMITVALUE(pitch, -128, 127); | |
538 | fm2frq2 = ((unsigned char)pitch<<8) | freq; | |
539 | snd_emu10k1_ptr_write(hw, FM2FRQ2, vp->ch, fm2frq2); | |
540 | } | |
541 | ||
542 | /* set filterQ */ | |
543 | static void | |
eb4698f3 | 544 | set_filterQ(struct snd_emu10k1 *hw, struct snd_emux_voice *vp) |
1da177e4 LT |
545 | { |
546 | unsigned int val; | |
547 | val = snd_emu10k1_ptr_read(hw, CCCA, vp->ch) & ~CCCA_RESONANCE; | |
548 | val |= (vp->reg.parm.filterQ << 28); | |
549 | snd_emu10k1_ptr_write(hw, CCCA, vp->ch, val); | |
550 | } |