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1da177e4 LT |
1 | /* |
2 | * synth callback routines for the emu8000 (AWE32/64) | |
3 | * | |
4 | * Copyright (C) 1999 Steve Ratcliffe | |
5 | * Copyright (C) 1999-2000 Takashi Iwai <tiwai@suse.de> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
21 | ||
22 | #include "emu8000_local.h" | |
d81a6d71 | 23 | #include <linux/export.h> |
1da177e4 LT |
24 | #include <sound/asoundef.h> |
25 | ||
26 | /* | |
27 | * prototypes | |
28 | */ | |
029d64b0 TI |
29 | static struct snd_emux_voice *get_voice(struct snd_emux *emu, |
30 | struct snd_emux_port *port); | |
31 | static int start_voice(struct snd_emux_voice *vp); | |
32 | static void trigger_voice(struct snd_emux_voice *vp); | |
33 | static void release_voice(struct snd_emux_voice *vp); | |
34 | static void update_voice(struct snd_emux_voice *vp, int update); | |
35 | static void reset_voice(struct snd_emux *emu, int ch); | |
36 | static void terminate_voice(struct snd_emux_voice *vp); | |
37 | static void sysex(struct snd_emux *emu, char *buf, int len, int parsed, | |
38 | struct snd_midi_channel_set *chset); | |
1da177e4 | 39 | #ifdef CONFIG_SND_SEQUENCER_OSS |
029d64b0 | 40 | static int oss_ioctl(struct snd_emux *emu, int cmd, int p1, int p2); |
1da177e4 | 41 | #endif |
029d64b0 TI |
42 | static int load_fx(struct snd_emux *emu, int type, int mode, |
43 | const void __user *buf, long len); | |
44 | ||
45 | static void set_pitch(struct snd_emu8000 *hw, struct snd_emux_voice *vp); | |
46 | static void set_volume(struct snd_emu8000 *hw, struct snd_emux_voice *vp); | |
47 | static void set_pan(struct snd_emu8000 *hw, struct snd_emux_voice *vp); | |
48 | static void set_fmmod(struct snd_emu8000 *hw, struct snd_emux_voice *vp); | |
49 | static void set_tremfreq(struct snd_emu8000 *hw, struct snd_emux_voice *vp); | |
50 | static void set_fm2frq2(struct snd_emu8000 *hw, struct snd_emux_voice *vp); | |
51 | static void set_filterQ(struct snd_emu8000 *hw, struct snd_emux_voice *vp); | |
52 | static void snd_emu8000_tweak_voice(struct snd_emu8000 *emu, int ch); | |
1da177e4 LT |
53 | |
54 | /* | |
55 | * Ensure a value is between two points | |
56 | * macro evaluates its args more than once, so changed to upper-case. | |
57 | */ | |
58 | #define LIMITVALUE(x, a, b) do { if ((x) < (a)) (x) = (a); else if ((x) > (b)) (x) = (b); } while (0) | |
59 | #define LIMITMAX(x, a) do {if ((x) > (a)) (x) = (a); } while (0) | |
60 | ||
61 | ||
62 | /* | |
63 | * set up operators | |
64 | */ | |
029d64b0 | 65 | static struct snd_emux_operators emu8000_ops = { |
1da177e4 LT |
66 | .owner = THIS_MODULE, |
67 | .get_voice = get_voice, | |
68 | .prepare = start_voice, | |
69 | .trigger = trigger_voice, | |
70 | .release = release_voice, | |
71 | .update = update_voice, | |
72 | .terminate = terminate_voice, | |
73 | .reset = reset_voice, | |
74 | .sample_new = snd_emu8000_sample_new, | |
75 | .sample_free = snd_emu8000_sample_free, | |
76 | .sample_reset = snd_emu8000_sample_reset, | |
77 | .load_fx = load_fx, | |
78 | .sysex = sysex, | |
79 | #ifdef CONFIG_SND_SEQUENCER_OSS | |
80 | .oss_ioctl = oss_ioctl, | |
81 | #endif | |
82 | }; | |
83 | ||
84 | void | |
029d64b0 | 85 | snd_emu8000_ops_setup(struct snd_emu8000 *hw) |
1da177e4 LT |
86 | { |
87 | hw->emu->ops = emu8000_ops; | |
88 | } | |
89 | ||
90 | ||
91 | ||
92 | /* | |
93 | * Terminate a voice | |
94 | */ | |
95 | static void | |
029d64b0 | 96 | release_voice(struct snd_emux_voice *vp) |
1da177e4 LT |
97 | { |
98 | int dcysusv; | |
029d64b0 | 99 | struct snd_emu8000 *hw; |
1da177e4 LT |
100 | |
101 | hw = vp->hw; | |
102 | dcysusv = 0x8000 | (unsigned char)vp->reg.parm.modrelease; | |
103 | EMU8000_DCYSUS_WRITE(hw, vp->ch, dcysusv); | |
104 | dcysusv = 0x8000 | (unsigned char)vp->reg.parm.volrelease; | |
105 | EMU8000_DCYSUSV_WRITE(hw, vp->ch, dcysusv); | |
106 | } | |
107 | ||
108 | ||
109 | /* | |
110 | */ | |
111 | static void | |
029d64b0 | 112 | terminate_voice(struct snd_emux_voice *vp) |
1da177e4 | 113 | { |
029d64b0 | 114 | struct snd_emu8000 *hw; |
1da177e4 LT |
115 | |
116 | hw = vp->hw; | |
117 | EMU8000_DCYSUSV_WRITE(hw, vp->ch, 0x807F); | |
118 | } | |
119 | ||
120 | ||
121 | /* | |
122 | */ | |
123 | static void | |
029d64b0 | 124 | update_voice(struct snd_emux_voice *vp, int update) |
1da177e4 | 125 | { |
029d64b0 | 126 | struct snd_emu8000 *hw; |
1da177e4 LT |
127 | |
128 | hw = vp->hw; | |
129 | if (update & SNDRV_EMUX_UPDATE_VOLUME) | |
130 | set_volume(hw, vp); | |
131 | if (update & SNDRV_EMUX_UPDATE_PITCH) | |
132 | set_pitch(hw, vp); | |
133 | if ((update & SNDRV_EMUX_UPDATE_PAN) && | |
134 | vp->port->ctrls[EMUX_MD_REALTIME_PAN]) | |
135 | set_pan(hw, vp); | |
136 | if (update & SNDRV_EMUX_UPDATE_FMMOD) | |
137 | set_fmmod(hw, vp); | |
138 | if (update & SNDRV_EMUX_UPDATE_TREMFREQ) | |
139 | set_tremfreq(hw, vp); | |
140 | if (update & SNDRV_EMUX_UPDATE_FM2FRQ2) | |
141 | set_fm2frq2(hw, vp); | |
142 | if (update & SNDRV_EMUX_UPDATE_Q) | |
143 | set_filterQ(hw, vp); | |
144 | } | |
145 | ||
146 | ||
147 | /* | |
148 | * Find a channel (voice) within the EMU that is not in use or at least | |
149 | * less in use than other channels. Always returns a valid pointer | |
150 | * no matter what. If there is a real shortage of voices then one | |
151 | * will be cut. Such is life. | |
152 | * | |
153 | * The channel index (vp->ch) must be initialized in this routine. | |
154 | * In Emu8k, it is identical with the array index. | |
155 | */ | |
029d64b0 TI |
156 | static struct snd_emux_voice * |
157 | get_voice(struct snd_emux *emu, struct snd_emux_port *port) | |
1da177e4 LT |
158 | { |
159 | int i; | |
029d64b0 TI |
160 | struct snd_emux_voice *vp; |
161 | struct snd_emu8000 *hw; | |
1da177e4 LT |
162 | |
163 | /* what we are looking for, in order of preference */ | |
164 | enum { | |
165 | OFF=0, RELEASED, PLAYING, END | |
166 | }; | |
167 | ||
168 | /* Keeps track of what we are finding */ | |
169 | struct best { | |
170 | unsigned int time; | |
171 | int voice; | |
172 | } best[END]; | |
173 | struct best *bp; | |
174 | ||
175 | hw = emu->hw; | |
176 | ||
177 | for (i = 0; i < END; i++) { | |
178 | best[i].time = (unsigned int)(-1); /* XXX MAX_?INT really */; | |
179 | best[i].voice = -1; | |
180 | } | |
181 | ||
182 | /* | |
183 | * Go through them all and get a best one to use. | |
184 | */ | |
185 | for (i = 0; i < emu->max_voices; i++) { | |
186 | int state, val; | |
187 | ||
188 | vp = &emu->voices[i]; | |
189 | state = vp->state; | |
190 | ||
191 | if (state == SNDRV_EMUX_ST_OFF) | |
192 | bp = best + OFF; | |
193 | else if (state == SNDRV_EMUX_ST_RELEASED || | |
194 | state == SNDRV_EMUX_ST_PENDING) { | |
195 | bp = best + RELEASED; | |
196 | val = (EMU8000_CVCF_READ(hw, vp->ch) >> 16) & 0xffff; | |
197 | if (! val) | |
198 | bp = best + OFF; | |
199 | } | |
200 | else if (state & SNDRV_EMUX_ST_ON) | |
201 | bp = best + PLAYING; | |
202 | else | |
203 | continue; | |
204 | ||
205 | /* check if sample is finished playing (non-looping only) */ | |
206 | if (state != SNDRV_EMUX_ST_OFF && | |
207 | (vp->reg.sample_mode & SNDRV_SFNT_SAMPLE_SINGLESHOT)) { | |
208 | val = EMU8000_CCCA_READ(hw, vp->ch) & 0xffffff; | |
209 | if (val >= vp->reg.loopstart) | |
210 | bp = best + OFF; | |
211 | } | |
212 | ||
213 | if (vp->time < bp->time) { | |
214 | bp->time = vp->time; | |
215 | bp->voice = i; | |
216 | } | |
217 | } | |
218 | ||
219 | for (i = 0; i < END; i++) { | |
220 | if (best[i].voice >= 0) { | |
221 | vp = &emu->voices[best[i].voice]; | |
222 | vp->ch = best[i].voice; | |
223 | return vp; | |
224 | } | |
225 | } | |
226 | ||
227 | /* not found */ | |
228 | return NULL; | |
229 | } | |
230 | ||
231 | /* | |
232 | */ | |
233 | static int | |
029d64b0 | 234 | start_voice(struct snd_emux_voice *vp) |
1da177e4 LT |
235 | { |
236 | unsigned int temp; | |
237 | int ch; | |
238 | int addr; | |
029d64b0 TI |
239 | struct snd_midi_channel *chan; |
240 | struct snd_emu8000 *hw; | |
1da177e4 LT |
241 | |
242 | hw = vp->hw; | |
243 | ch = vp->ch; | |
244 | chan = vp->chan; | |
245 | ||
246 | /* channel to be silent and idle */ | |
247 | EMU8000_DCYSUSV_WRITE(hw, ch, 0x0080); | |
248 | EMU8000_VTFT_WRITE(hw, ch, 0x0000FFFF); | |
249 | EMU8000_CVCF_WRITE(hw, ch, 0x0000FFFF); | |
250 | EMU8000_PTRX_WRITE(hw, ch, 0); | |
251 | EMU8000_CPF_WRITE(hw, ch, 0); | |
252 | ||
253 | /* set pitch offset */ | |
254 | set_pitch(hw, vp); | |
255 | ||
256 | /* set envelope parameters */ | |
257 | EMU8000_ENVVAL_WRITE(hw, ch, vp->reg.parm.moddelay); | |
258 | EMU8000_ATKHLD_WRITE(hw, ch, vp->reg.parm.modatkhld); | |
259 | EMU8000_DCYSUS_WRITE(hw, ch, vp->reg.parm.moddcysus); | |
260 | EMU8000_ENVVOL_WRITE(hw, ch, vp->reg.parm.voldelay); | |
261 | EMU8000_ATKHLDV_WRITE(hw, ch, vp->reg.parm.volatkhld); | |
262 | /* decay/sustain parameter for volume envelope is used | |
263 | for triggerg the voice */ | |
264 | ||
265 | /* cutoff and volume */ | |
266 | set_volume(hw, vp); | |
267 | ||
268 | /* modulation envelope heights */ | |
269 | EMU8000_PEFE_WRITE(hw, ch, vp->reg.parm.pefe); | |
270 | ||
271 | /* lfo1/2 delay */ | |
272 | EMU8000_LFO1VAL_WRITE(hw, ch, vp->reg.parm.lfo1delay); | |
273 | EMU8000_LFO2VAL_WRITE(hw, ch, vp->reg.parm.lfo2delay); | |
274 | ||
275 | /* lfo1 pitch & cutoff shift */ | |
276 | set_fmmod(hw, vp); | |
277 | /* lfo1 volume & freq */ | |
278 | set_tremfreq(hw, vp); | |
279 | /* lfo2 pitch & freq */ | |
280 | set_fm2frq2(hw, vp); | |
281 | /* pan & loop start */ | |
282 | set_pan(hw, vp); | |
283 | ||
284 | /* chorus & loop end (chorus 8bit, MSB) */ | |
285 | addr = vp->reg.loopend - 1; | |
286 | temp = vp->reg.parm.chorus; | |
287 | temp += (int)chan->control[MIDI_CTL_E3_CHORUS_DEPTH] * 9 / 10; | |
288 | LIMITMAX(temp, 255); | |
289 | temp = (temp <<24) | (unsigned int)addr; | |
290 | EMU8000_CSL_WRITE(hw, ch, temp); | |
291 | ||
292 | /* Q & current address (Q 4bit value, MSB) */ | |
293 | addr = vp->reg.start - 1; | |
294 | temp = vp->reg.parm.filterQ; | |
295 | temp = (temp<<28) | (unsigned int)addr; | |
296 | EMU8000_CCCA_WRITE(hw, ch, temp); | |
297 | ||
298 | /* clear unknown registers */ | |
299 | EMU8000_00A0_WRITE(hw, ch, 0); | |
300 | EMU8000_0080_WRITE(hw, ch, 0); | |
301 | ||
302 | /* reset volume */ | |
303 | temp = vp->vtarget << 16; | |
304 | EMU8000_VTFT_WRITE(hw, ch, temp | vp->ftarget); | |
305 | EMU8000_CVCF_WRITE(hw, ch, temp | 0xff00); | |
306 | ||
307 | return 0; | |
308 | } | |
309 | ||
310 | /* | |
311 | * Start envelope | |
312 | */ | |
313 | static void | |
029d64b0 | 314 | trigger_voice(struct snd_emux_voice *vp) |
1da177e4 LT |
315 | { |
316 | int ch = vp->ch; | |
317 | unsigned int temp; | |
029d64b0 | 318 | struct snd_emu8000 *hw; |
1da177e4 LT |
319 | |
320 | hw = vp->hw; | |
321 | ||
322 | /* set reverb and pitch target */ | |
323 | temp = vp->reg.parm.reverb; | |
324 | temp += (int)vp->chan->control[MIDI_CTL_E1_REVERB_DEPTH] * 9 / 10; | |
325 | LIMITMAX(temp, 255); | |
326 | temp = (temp << 8) | (vp->ptarget << 16) | vp->aaux; | |
327 | EMU8000_PTRX_WRITE(hw, ch, temp); | |
328 | EMU8000_CPF_WRITE(hw, ch, vp->ptarget << 16); | |
329 | EMU8000_DCYSUSV_WRITE(hw, ch, vp->reg.parm.voldcysus); | |
330 | } | |
331 | ||
332 | /* | |
333 | * reset voice parameters | |
334 | */ | |
335 | static void | |
029d64b0 | 336 | reset_voice(struct snd_emux *emu, int ch) |
1da177e4 | 337 | { |
029d64b0 | 338 | struct snd_emu8000 *hw; |
1da177e4 LT |
339 | |
340 | hw = emu->hw; | |
341 | EMU8000_DCYSUSV_WRITE(hw, ch, 0x807F); | |
342 | snd_emu8000_tweak_voice(hw, ch); | |
343 | } | |
344 | ||
345 | /* | |
346 | * Set the pitch of a possibly playing note. | |
347 | */ | |
348 | static void | |
029d64b0 | 349 | set_pitch(struct snd_emu8000 *hw, struct snd_emux_voice *vp) |
1da177e4 LT |
350 | { |
351 | EMU8000_IP_WRITE(hw, vp->ch, vp->apitch); | |
352 | } | |
353 | ||
354 | /* | |
355 | * Set the volume of a possibly already playing note | |
356 | */ | |
357 | static void | |
029d64b0 | 358 | set_volume(struct snd_emu8000 *hw, struct snd_emux_voice *vp) |
1da177e4 LT |
359 | { |
360 | int ifatn; | |
361 | ||
362 | ifatn = (unsigned char)vp->acutoff; | |
363 | ifatn = (ifatn << 8); | |
364 | ifatn |= (unsigned char)vp->avol; | |
365 | EMU8000_IFATN_WRITE(hw, vp->ch, ifatn); | |
366 | } | |
367 | ||
368 | /* | |
369 | * Set pan and loop start address. | |
370 | */ | |
371 | static void | |
029d64b0 | 372 | set_pan(struct snd_emu8000 *hw, struct snd_emux_voice *vp) |
1da177e4 LT |
373 | { |
374 | unsigned int temp; | |
375 | ||
376 | temp = ((unsigned int)vp->apan<<24) | ((unsigned int)vp->reg.loopstart - 1); | |
377 | EMU8000_PSST_WRITE(hw, vp->ch, temp); | |
378 | } | |
379 | ||
380 | #define MOD_SENSE 18 | |
381 | ||
382 | static void | |
029d64b0 | 383 | set_fmmod(struct snd_emu8000 *hw, struct snd_emux_voice *vp) |
1da177e4 LT |
384 | { |
385 | unsigned short fmmod; | |
386 | short pitch; | |
387 | unsigned char cutoff; | |
388 | int modulation; | |
389 | ||
390 | pitch = (char)(vp->reg.parm.fmmod>>8); | |
391 | cutoff = (vp->reg.parm.fmmod & 0xff); | |
392 | modulation = vp->chan->gm_modulation + vp->chan->midi_pressure; | |
393 | pitch += (MOD_SENSE * modulation) / 1200; | |
394 | LIMITVALUE(pitch, -128, 127); | |
395 | fmmod = ((unsigned char)pitch<<8) | cutoff; | |
396 | EMU8000_FMMOD_WRITE(hw, vp->ch, fmmod); | |
397 | } | |
398 | ||
399 | /* set tremolo (lfo1) volume & frequency */ | |
400 | static void | |
029d64b0 | 401 | set_tremfreq(struct snd_emu8000 *hw, struct snd_emux_voice *vp) |
1da177e4 LT |
402 | { |
403 | EMU8000_TREMFRQ_WRITE(hw, vp->ch, vp->reg.parm.tremfrq); | |
404 | } | |
405 | ||
406 | /* set lfo2 pitch & frequency */ | |
407 | static void | |
029d64b0 | 408 | set_fm2frq2(struct snd_emu8000 *hw, struct snd_emux_voice *vp) |
1da177e4 LT |
409 | { |
410 | unsigned short fm2frq2; | |
411 | short pitch; | |
412 | unsigned char freq; | |
413 | int modulation; | |
414 | ||
415 | pitch = (char)(vp->reg.parm.fm2frq2>>8); | |
416 | freq = vp->reg.parm.fm2frq2 & 0xff; | |
417 | modulation = vp->chan->gm_modulation + vp->chan->midi_pressure; | |
418 | pitch += (MOD_SENSE * modulation) / 1200; | |
419 | LIMITVALUE(pitch, -128, 127); | |
420 | fm2frq2 = ((unsigned char)pitch<<8) | freq; | |
421 | EMU8000_FM2FRQ2_WRITE(hw, vp->ch, fm2frq2); | |
422 | } | |
423 | ||
424 | /* set filterQ */ | |
425 | static void | |
029d64b0 | 426 | set_filterQ(struct snd_emu8000 *hw, struct snd_emux_voice *vp) |
1da177e4 LT |
427 | { |
428 | unsigned int addr; | |
429 | addr = EMU8000_CCCA_READ(hw, vp->ch) & 0xffffff; | |
430 | addr |= (vp->reg.parm.filterQ << 28); | |
431 | EMU8000_CCCA_WRITE(hw, vp->ch, addr); | |
432 | } | |
433 | ||
434 | /* | |
435 | * set the envelope & LFO parameters to the default values | |
436 | */ | |
437 | static void | |
029d64b0 | 438 | snd_emu8000_tweak_voice(struct snd_emu8000 *emu, int i) |
1da177e4 LT |
439 | { |
440 | /* set all mod/vol envelope shape to minimum */ | |
441 | EMU8000_ENVVOL_WRITE(emu, i, 0x8000); | |
442 | EMU8000_ENVVAL_WRITE(emu, i, 0x8000); | |
443 | EMU8000_DCYSUS_WRITE(emu, i, 0x7F7F); | |
444 | EMU8000_ATKHLDV_WRITE(emu, i, 0x7F7F); | |
445 | EMU8000_ATKHLD_WRITE(emu, i, 0x7F7F); | |
446 | EMU8000_PEFE_WRITE(emu, i, 0); /* mod envelope height to zero */ | |
447 | EMU8000_LFO1VAL_WRITE(emu, i, 0x8000); /* no delay for LFO1 */ | |
448 | EMU8000_LFO2VAL_WRITE(emu, i, 0x8000); | |
449 | EMU8000_IP_WRITE(emu, i, 0xE000); /* no pitch shift */ | |
450 | EMU8000_IFATN_WRITE(emu, i, 0xFF00); /* volume to minimum */ | |
451 | EMU8000_FMMOD_WRITE(emu, i, 0); | |
452 | EMU8000_TREMFRQ_WRITE(emu, i, 0); | |
453 | EMU8000_FM2FRQ2_WRITE(emu, i, 0); | |
454 | } | |
455 | ||
456 | /* | |
457 | * sysex callback | |
458 | */ | |
459 | static void | |
029d64b0 | 460 | sysex(struct snd_emux *emu, char *buf, int len, int parsed, struct snd_midi_channel_set *chset) |
1da177e4 | 461 | { |
029d64b0 | 462 | struct snd_emu8000 *hw; |
1da177e4 LT |
463 | |
464 | hw = emu->hw; | |
465 | ||
466 | switch (parsed) { | |
467 | case SNDRV_MIDI_SYSEX_GS_CHORUS_MODE: | |
468 | hw->chorus_mode = chset->gs_chorus_mode; | |
469 | snd_emu8000_update_chorus_mode(hw); | |
470 | break; | |
471 | ||
472 | case SNDRV_MIDI_SYSEX_GS_REVERB_MODE: | |
473 | hw->reverb_mode = chset->gs_reverb_mode; | |
474 | snd_emu8000_update_reverb_mode(hw); | |
475 | break; | |
476 | } | |
477 | } | |
478 | ||
479 | ||
480 | #ifdef CONFIG_SND_SEQUENCER_OSS | |
481 | /* | |
482 | * OSS ioctl callback | |
483 | */ | |
484 | static int | |
029d64b0 | 485 | oss_ioctl(struct snd_emux *emu, int cmd, int p1, int p2) |
1da177e4 | 486 | { |
029d64b0 | 487 | struct snd_emu8000 *hw; |
1da177e4 LT |
488 | |
489 | hw = emu->hw; | |
490 | ||
491 | switch (cmd) { | |
492 | case _EMUX_OSS_REVERB_MODE: | |
493 | hw->reverb_mode = p1; | |
494 | snd_emu8000_update_reverb_mode(hw); | |
495 | break; | |
496 | ||
497 | case _EMUX_OSS_CHORUS_MODE: | |
498 | hw->chorus_mode = p1; | |
499 | snd_emu8000_update_chorus_mode(hw); | |
500 | break; | |
501 | ||
502 | case _EMUX_OSS_INITIALIZE_CHIP: | |
503 | /* snd_emu8000_init(hw); */ /*ignored*/ | |
504 | break; | |
505 | ||
506 | case _EMUX_OSS_EQUALIZER: | |
507 | hw->bass_level = p1; | |
508 | hw->treble_level = p2; | |
509 | snd_emu8000_update_equalizer(hw); | |
510 | break; | |
511 | } | |
512 | return 0; | |
513 | } | |
514 | #endif | |
515 | ||
516 | ||
517 | /* | |
518 | * additional patch keys | |
519 | */ | |
520 | ||
521 | #define SNDRV_EMU8000_LOAD_CHORUS_FX 0x10 /* optarg=mode */ | |
522 | #define SNDRV_EMU8000_LOAD_REVERB_FX 0x11 /* optarg=mode */ | |
523 | ||
524 | ||
525 | /* | |
526 | * callback routine | |
527 | */ | |
528 | ||
529 | static int | |
029d64b0 | 530 | load_fx(struct snd_emux *emu, int type, int mode, const void __user *buf, long len) |
1da177e4 | 531 | { |
029d64b0 | 532 | struct snd_emu8000 *hw; |
1da177e4 LT |
533 | hw = emu->hw; |
534 | ||
535 | /* skip header */ | |
536 | buf += 16; | |
537 | len -= 16; | |
538 | ||
539 | switch (type) { | |
540 | case SNDRV_EMU8000_LOAD_CHORUS_FX: | |
541 | return snd_emu8000_load_chorus_fx(hw, mode, buf, len); | |
542 | case SNDRV_EMU8000_LOAD_REVERB_FX: | |
543 | return snd_emu8000_load_reverb_fx(hw, mode, buf, len); | |
544 | } | |
545 | return -EINVAL; | |
546 | } | |
547 |