tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * IWFFFF - AMD InterWave (tm) - Instrument routines
3 * Copyright (c) 1999 by Jaroslav Kysela <perex@suse.cz>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 *
19 */
20
21#include <sound/driver.h>
22#include <linux/init.h>
23#include <linux/sched.h>
24#include <linux/slab.h>
25#include <sound/core.h>
26#include <sound/ainstr_iw.h>
27#include <sound/initval.h>
28#include <asm/uaccess.h>
29
30MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
31MODULE_DESCRIPTION("Advanced Linux Sound Architecture IWFFFF support.");
32MODULE_LICENSE("GPL");
33
34static unsigned int snd_seq_iwffff_size(unsigned int size, unsigned int format)
35{
36 unsigned int result = size;
37
38 if (format & IWFFFF_WAVE_16BIT)
39 result <<= 1;
40 if (format & IWFFFF_WAVE_STEREO)
41 result <<= 1;
42 return result;
43}
44
45static void snd_seq_iwffff_copy_lfo_from_stream(iwffff_lfo_t *fp,
46 iwffff_xlfo_t *fx)
47{
48 fp->freq = le16_to_cpu(fx->freq);
49 fp->depth = le16_to_cpu(fx->depth);
50 fp->sweep = le16_to_cpu(fx->sweep);
51 fp->shape = fx->shape;
52 fp->delay = fx->delay;
53}
54
55static int snd_seq_iwffff_copy_env_from_stream(__u32 req_stype,
56 iwffff_layer_t *lp,
57 iwffff_env_t *ep,
58 iwffff_xenv_t *ex,
59 char __user **data,
60 long *len,
61 int gfp_mask)
62{
63 __u32 stype;
64 iwffff_env_record_t *rp, *rp_last;
65 iwffff_xenv_record_t rx;
66 iwffff_env_point_t *pp;
67 iwffff_xenv_point_t px;
68 int points_size, idx;
69
70 ep->flags = ex->flags;
71 ep->mode = ex->mode;
72 ep->index = ex->index;
73 rp_last = NULL;
74 while (1) {
75 if (*len < (long)sizeof(__u32))
76 return -EINVAL;
77 if (copy_from_user(&stype, *data, sizeof(stype)))
78 return -EFAULT;
79 if (stype == IWFFFF_STRU_WAVE)
80 return 0;
81 if (req_stype != stype) {
82 if (stype == IWFFFF_STRU_ENV_RECP ||
83 stype == IWFFFF_STRU_ENV_RECV)
84 return 0;
85 }
86 if (*len < (long)sizeof(rx))
87 return -EINVAL;
88 if (copy_from_user(&rx, *data, sizeof(rx)))
89 return -EFAULT;
90 *data += sizeof(rx);
91 *len -= sizeof(rx);
92 points_size = (le16_to_cpu(rx.nattack) + le16_to_cpu(rx.nrelease)) * 2 * sizeof(__u16);
93 if (points_size > *len)
94 return -EINVAL;
95 rp = kcalloc(1, sizeof(*rp) + points_size, gfp_mask);
96 if (rp == NULL)
97 return -ENOMEM;
98 rp->nattack = le16_to_cpu(rx.nattack);
99 rp->nrelease = le16_to_cpu(rx.nrelease);
100 rp->sustain_offset = le16_to_cpu(rx.sustain_offset);
101 rp->sustain_rate = le16_to_cpu(rx.sustain_rate);
102 rp->release_rate = le16_to_cpu(rx.release_rate);
103 rp->hirange = rx.hirange;
104 pp = (iwffff_env_point_t *)(rp + 1);
105 for (idx = 0; idx < rp->nattack + rp->nrelease; idx++) {
106 if (copy_from_user(&px, *data, sizeof(px)))
107 return -EFAULT;
108 *data += sizeof(px);
109 *len -= sizeof(px);
110 pp->offset = le16_to_cpu(px.offset);
111 pp->rate = le16_to_cpu(px.rate);
112 }
113 if (ep->record == NULL) {
114 ep->record = rp;
115 } else {
116 rp_last = rp;
117 }
118 rp_last = rp;
119 }
120 return 0;
121}
122
123static int snd_seq_iwffff_copy_wave_from_stream(snd_iwffff_ops_t *ops,
124 iwffff_layer_t *lp,
125 char __user **data,
126 long *len,
127 int atomic)
128{
129 iwffff_wave_t *wp, *prev;
130 iwffff_xwave_t xp;
131 int err, gfp_mask;
132 unsigned int real_size;
133
134 gfp_mask = atomic ? GFP_ATOMIC : GFP_KERNEL;
135 if (*len < (long)sizeof(xp))
136 return -EINVAL;
137 if (copy_from_user(&xp, *data, sizeof(xp)))
138 return -EFAULT;
139 *data += sizeof(xp);
140 *len -= sizeof(xp);
141 wp = kcalloc(1, sizeof(*wp), gfp_mask);
142 if (wp == NULL)
143 return -ENOMEM;
144 wp->share_id[0] = le32_to_cpu(xp.share_id[0]);
145 wp->share_id[1] = le32_to_cpu(xp.share_id[1]);
146 wp->share_id[2] = le32_to_cpu(xp.share_id[2]);
147 wp->share_id[3] = le32_to_cpu(xp.share_id[3]);
148 wp->format = le32_to_cpu(xp.format);
149 wp->address.memory = le32_to_cpu(xp.offset);
150 wp->size = le32_to_cpu(xp.size);
151 wp->start = le32_to_cpu(xp.start);
152 wp->loop_start = le32_to_cpu(xp.loop_start);
153 wp->loop_end = le32_to_cpu(xp.loop_end);
154 wp->loop_repeat = le16_to_cpu(xp.loop_repeat);
155 wp->sample_ratio = le32_to_cpu(xp.sample_ratio);
156 wp->attenuation = xp.attenuation;
157 wp->low_note = xp.low_note;
158 wp->high_note = xp.high_note;
159 real_size = snd_seq_iwffff_size(wp->size, wp->format);
160 if (!(wp->format & IWFFFF_WAVE_ROM)) {
161 if ((long)real_size > *len) {
162 kfree(wp);
163 return -ENOMEM;
164 }
165 }
166 if (ops->put_sample) {
167 err = ops->put_sample(ops->private_data, wp,
168 *data, real_size, atomic);
169 if (err < 0) {
170 kfree(wp);
171 return err;
172 }
173 }
174 if (!(wp->format & IWFFFF_WAVE_ROM)) {
175 *data += real_size;
176 *len -= real_size;
177 }
178 prev = lp->wave;
179 if (prev) {
180 while (prev->next) prev = prev->next;
181 prev->next = wp;
182 } else {
183 lp->wave = wp;
184 }
185 return 0;
186}
187
188static void snd_seq_iwffff_env_free(snd_iwffff_ops_t *ops,
189 iwffff_env_t *env,
190 int atomic)
191{
192 iwffff_env_record_t *rec;
193
194 while ((rec = env->record) != NULL) {
195 env->record = rec->next;
196 kfree(rec);
197 }
198}
199
200static void snd_seq_iwffff_wave_free(snd_iwffff_ops_t *ops,
201 iwffff_wave_t *wave,
202 int atomic)
203{
204 if (ops->remove_sample)
205 ops->remove_sample(ops->private_data, wave, atomic);
206 kfree(wave);
207}
208
209static void snd_seq_iwffff_instr_free(snd_iwffff_ops_t *ops,
210 iwffff_instrument_t *ip,
211 int atomic)
212{
213 iwffff_layer_t *layer;
214 iwffff_wave_t *wave;
215
216 while ((layer = ip->layer) != NULL) {
217 ip->layer = layer->next;
218 snd_seq_iwffff_env_free(ops, &layer->penv, atomic);
219 snd_seq_iwffff_env_free(ops, &layer->venv, atomic);
220 while ((wave = layer->wave) != NULL) {
221 layer->wave = wave->next;
222 snd_seq_iwffff_wave_free(ops, wave, atomic);
223 }
224 kfree(layer);
225 }
226}
227
228static int snd_seq_iwffff_put(void *private_data, snd_seq_kinstr_t *instr,
229 char __user *instr_data, long len, int atomic,
230 int cmd)
231{
232 snd_iwffff_ops_t *ops = (snd_iwffff_ops_t *)private_data;
233 iwffff_instrument_t *ip;
234 iwffff_xinstrument_t ix;
235 iwffff_layer_t *lp, *prev_lp;
236 iwffff_xlayer_t lx;
237 int err, gfp_mask;
238
239 if (cmd != SNDRV_SEQ_INSTR_PUT_CMD_CREATE)
240 return -EINVAL;
241 gfp_mask = atomic ? GFP_ATOMIC : GFP_KERNEL;
242 /* copy instrument data */
243 if (len < (long)sizeof(ix))
244 return -EINVAL;
245 if (copy_from_user(&ix, instr_data, sizeof(ix)))
246 return -EFAULT;
247 if (ix.stype != IWFFFF_STRU_INSTR)
248 return -EINVAL;
249 instr_data += sizeof(ix);
250 len -= sizeof(ix);
251 ip = (iwffff_instrument_t *)KINSTR_DATA(instr);
252 ip->exclusion = le16_to_cpu(ix.exclusion);
253 ip->layer_type = le16_to_cpu(ix.layer_type);
254 ip->exclusion_group = le16_to_cpu(ix.exclusion_group);
255 ip->effect1 = ix.effect1;
256 ip->effect1_depth = ix.effect1_depth;
257 ip->effect2 = ix.effect2;
258 ip->effect2_depth = ix.effect2_depth;
259 /* copy layers */
260 prev_lp = NULL;
261 while (len > 0) {
262 if (len < (long)sizeof(iwffff_xlayer_t)) {
263 snd_seq_iwffff_instr_free(ops, ip, atomic);
264 return -EINVAL;
265 }
266 if (copy_from_user(&lx, instr_data, sizeof(lx)))
267 return -EFAULT;
268 instr_data += sizeof(lx);
269 len -= sizeof(lx);
270 if (lx.stype != IWFFFF_STRU_LAYER) {
271 snd_seq_iwffff_instr_free(ops, ip, atomic);
272 return -EINVAL;
273 }
274 lp = kcalloc(1, sizeof(*lp), gfp_mask);
275 if (lp == NULL) {
276 snd_seq_iwffff_instr_free(ops, ip, atomic);
277 return -ENOMEM;
278 }
279 if (prev_lp) {
280 prev_lp->next = lp;
281 } else {
282 ip->layer = lp;
283 }
284 prev_lp = lp;
285 lp->flags = lx.flags;
286 lp->velocity_mode = lx.velocity_mode;
287 lp->layer_event = lx.layer_event;
288 lp->low_range = lx.low_range;
289 lp->high_range = lx.high_range;
290 lp->pan = lx.pan;
291 lp->pan_freq_scale = lx.pan_freq_scale;
292 lp->attenuation = lx.attenuation;
293 snd_seq_iwffff_copy_lfo_from_stream(&lp->tremolo, &lx.tremolo);
294 snd_seq_iwffff_copy_lfo_from_stream(&lp->vibrato, &lx.vibrato);
295 lp->freq_scale = le16_to_cpu(lx.freq_scale);
296 lp->freq_center = lx.freq_center;
297 err = snd_seq_iwffff_copy_env_from_stream(IWFFFF_STRU_ENV_RECP,
298 lp,
299 &lp->penv, &lx.penv,
300 &instr_data, &len,
301 gfp_mask);
302 if (err < 0) {
303 snd_seq_iwffff_instr_free(ops, ip, atomic);
304 return err;
305 }
306 err = snd_seq_iwffff_copy_env_from_stream(IWFFFF_STRU_ENV_RECV,
307 lp,
308 &lp->venv, &lx.venv,
309 &instr_data, &len,
310 gfp_mask);
311 if (err < 0) {
312 snd_seq_iwffff_instr_free(ops, ip, atomic);
313 return err;
314 }
315 while (len > (long)sizeof(__u32)) {
316 __u32 stype;
317
318 if (copy_from_user(&stype, instr_data, sizeof(stype)))
319 return -EFAULT;
320 if (stype != IWFFFF_STRU_WAVE)
321 break;
322 err = snd_seq_iwffff_copy_wave_from_stream(ops,
323 lp,
324 &instr_data,
325 &len,
326 atomic);
327 if (err < 0) {
328 snd_seq_iwffff_instr_free(ops, ip, atomic);
329 return err;
330 }
331 }
332 }
333 return 0;
334}
335
336static void snd_seq_iwffff_copy_lfo_to_stream(iwffff_xlfo_t *fx,
337 iwffff_lfo_t *fp)
338{
339 fx->freq = cpu_to_le16(fp->freq);
340 fx->depth = cpu_to_le16(fp->depth);
341 fx->sweep = cpu_to_le16(fp->sweep);
342 fp->shape = fx->shape;
343 fp->delay = fx->delay;
344}
345
346static int snd_seq_iwffff_copy_env_to_stream(__u32 req_stype,
347 iwffff_layer_t *lp,
348 iwffff_xenv_t *ex,
349 iwffff_env_t *ep,
350 char __user **data,
351 long *len)
352{
353 iwffff_env_record_t *rp;
354 iwffff_xenv_record_t rx;
355 iwffff_env_point_t *pp;
356 iwffff_xenv_point_t px;
357 int points_size, idx;
358
359 ex->flags = ep->flags;
360 ex->mode = ep->mode;
361 ex->index = ep->index;
362 for (rp = ep->record; rp; rp = rp->next) {
363 if (*len < (long)sizeof(rx))
364 return -ENOMEM;
365 memset(&rx, 0, sizeof(rx));
366 rx.stype = req_stype;
367 rx.nattack = cpu_to_le16(rp->nattack);
368 rx.nrelease = cpu_to_le16(rp->nrelease);
369 rx.sustain_offset = cpu_to_le16(rp->sustain_offset);
370 rx.sustain_rate = cpu_to_le16(rp->sustain_rate);
371 rx.release_rate = cpu_to_le16(rp->release_rate);
372 rx.hirange = cpu_to_le16(rp->hirange);
373 if (copy_to_user(*data, &rx, sizeof(rx)))
374 return -EFAULT;
375 *data += sizeof(rx);
376 *len -= sizeof(rx);
377 points_size = (rp->nattack + rp->nrelease) * 2 * sizeof(__u16);
378 if (*len < points_size)
379 return -ENOMEM;
380 pp = (iwffff_env_point_t *)(rp + 1);
381 for (idx = 0; idx < rp->nattack + rp->nrelease; idx++) {
382 px.offset = cpu_to_le16(pp->offset);
383 px.rate = cpu_to_le16(pp->rate);
384 if (copy_to_user(*data, &px, sizeof(px)))
385 return -EFAULT;
386 *data += sizeof(px);
387 *len -= sizeof(px);
388 }
389 }
390 return 0;
391}
392
393static int snd_seq_iwffff_copy_wave_to_stream(snd_iwffff_ops_t *ops,
394 iwffff_layer_t *lp,
395 char __user **data,
396 long *len,
397 int atomic)
398{
399 iwffff_wave_t *wp;
400 iwffff_xwave_t xp;
401 int err;
402 unsigned int real_size;
403
404 for (wp = lp->wave; wp; wp = wp->next) {
405 if (*len < (long)sizeof(xp))
406 return -ENOMEM;
407 memset(&xp, 0, sizeof(xp));
408 xp.stype = IWFFFF_STRU_WAVE;
409 xp.share_id[0] = cpu_to_le32(wp->share_id[0]);
410 xp.share_id[1] = cpu_to_le32(wp->share_id[1]);
411 xp.share_id[2] = cpu_to_le32(wp->share_id[2]);
412 xp.share_id[3] = cpu_to_le32(wp->share_id[3]);
413 xp.format = cpu_to_le32(wp->format);
414 if (wp->format & IWFFFF_WAVE_ROM)
415 xp.offset = cpu_to_le32(wp->address.memory);
416 xp.size = cpu_to_le32(wp->size);
417 xp.start = cpu_to_le32(wp->start);
418 xp.loop_start = cpu_to_le32(wp->loop_start);
419 xp.loop_end = cpu_to_le32(wp->loop_end);
420 xp.loop_repeat = cpu_to_le32(wp->loop_repeat);
421 xp.sample_ratio = cpu_to_le32(wp->sample_ratio);
422 xp.attenuation = wp->attenuation;
423 xp.low_note = wp->low_note;
424 xp.high_note = wp->high_note;
425 if (copy_to_user(*data, &xp, sizeof(xp)))
426 return -EFAULT;
427 *data += sizeof(xp);
428 *len -= sizeof(xp);
429 real_size = snd_seq_iwffff_size(wp->size, wp->format);
430 if (!(wp->format & IWFFFF_WAVE_ROM)) {
431 if (*len < (long)real_size)
432 return -ENOMEM;
433 }
434 if (ops->get_sample) {
435 err = ops->get_sample(ops->private_data, wp,
436 *data, real_size, atomic);
437 if (err < 0)
438 return err;
439 }
440 if (!(wp->format & IWFFFF_WAVE_ROM)) {
441 *data += real_size;
442 *len -= real_size;
443 }
444 }
445 return 0;
446}
447
448static int snd_seq_iwffff_get(void *private_data, snd_seq_kinstr_t *instr,
449 char __user *instr_data, long len, int atomic, int cmd)
450{
451 snd_iwffff_ops_t *ops = (snd_iwffff_ops_t *)private_data;
452 iwffff_instrument_t *ip;
453 iwffff_xinstrument_t ix;
454 iwffff_layer_t *lp;
455 iwffff_xlayer_t lx;
456 char __user *layer_instr_data;
457 int err;
458
459 if (cmd != SNDRV_SEQ_INSTR_GET_CMD_FULL)
460 return -EINVAL;
461 if (len < (long)sizeof(ix))
462 return -ENOMEM;
463 memset(&ix, 0, sizeof(ix));
464 ip = (iwffff_instrument_t *)KINSTR_DATA(instr);
465 ix.stype = IWFFFF_STRU_INSTR;
466 ix.exclusion = cpu_to_le16(ip->exclusion);
467 ix.layer_type = cpu_to_le16(ip->layer_type);
468 ix.exclusion_group = cpu_to_le16(ip->exclusion_group);
469 ix.effect1 = cpu_to_le16(ip->effect1);
470 ix.effect1_depth = cpu_to_le16(ip->effect1_depth);
471 ix.effect2 = ip->effect2;
472 ix.effect2_depth = ip->effect2_depth;
473 if (copy_to_user(instr_data, &ix, sizeof(ix)))
474 return -EFAULT;
475 instr_data += sizeof(ix);
476 len -= sizeof(ix);
477 for (lp = ip->layer; lp; lp = lp->next) {
478 if (len < (long)sizeof(lx))
479 return -ENOMEM;
480 memset(&lx, 0, sizeof(lx));
481 lx.stype = IWFFFF_STRU_LAYER;
482 lx.flags = lp->flags;
483 lx.velocity_mode = lp->velocity_mode;
484 lx.layer_event = lp->layer_event;
485 lx.low_range = lp->low_range;
486 lx.high_range = lp->high_range;
487 lx.pan = lp->pan;
488 lx.pan_freq_scale = lp->pan_freq_scale;
489 lx.attenuation = lp->attenuation;
490 snd_seq_iwffff_copy_lfo_to_stream(&lx.tremolo, &lp->tremolo);
491 snd_seq_iwffff_copy_lfo_to_stream(&lx.vibrato, &lp->vibrato);
492 layer_instr_data = instr_data;
493 instr_data += sizeof(lx);
494 len -= sizeof(lx);
495 err = snd_seq_iwffff_copy_env_to_stream(IWFFFF_STRU_ENV_RECP,
496 lp,
497 &lx.penv, &lp->penv,
498 &instr_data, &len);
499 if (err < 0)
500 return err;
501 err = snd_seq_iwffff_copy_env_to_stream(IWFFFF_STRU_ENV_RECV,
502 lp,
503 &lx.venv, &lp->venv,
504 &instr_data, &len);
505 if (err < 0)
506 return err;
507 /* layer structure updating is now finished */
508 if (copy_to_user(layer_instr_data, &lx, sizeof(lx)))
509 return -EFAULT;
510 err = snd_seq_iwffff_copy_wave_to_stream(ops,
511 lp,
512 &instr_data,
513 &len,
514 atomic);
515 if (err < 0)
516 return err;
517 }
518 return 0;
519}
520
521static long snd_seq_iwffff_env_size_in_stream(iwffff_env_t *ep)
522{
523 long result = 0;
524 iwffff_env_record_t *rp;
525
526 for (rp = ep->record; rp; rp = rp->next) {
527 result += sizeof(iwffff_xenv_record_t);
528 result += (rp->nattack + rp->nrelease) * 2 * sizeof(__u16);
529 }
530 return 0;
531}
532
533static long snd_seq_iwffff_wave_size_in_stream(iwffff_layer_t *lp)
534{
535 long result = 0;
536 iwffff_wave_t *wp;
537
538 for (wp = lp->wave; wp; wp = wp->next) {
539 result += sizeof(iwffff_xwave_t);
540 if (!(wp->format & IWFFFF_WAVE_ROM))
541 result += wp->size;
542 }
543 return result;
544}
545
546static int snd_seq_iwffff_get_size(void *private_data, snd_seq_kinstr_t *instr,
547 long *size)
548{
549 long result;
550 iwffff_instrument_t *ip;
551 iwffff_layer_t *lp;
552
553 *size = 0;
554 ip = (iwffff_instrument_t *)KINSTR_DATA(instr);
555 result = sizeof(iwffff_xinstrument_t);
556 for (lp = ip->layer; lp; lp = lp->next) {
557 result += sizeof(iwffff_xlayer_t);
558 result += snd_seq_iwffff_env_size_in_stream(&lp->penv);
559 result += snd_seq_iwffff_env_size_in_stream(&lp->venv);
560 result += snd_seq_iwffff_wave_size_in_stream(lp);
561 }
562 *size = result;
563 return 0;
564}
565
566static int snd_seq_iwffff_remove(void *private_data,
567 snd_seq_kinstr_t *instr,
568 int atomic)
569{
570 snd_iwffff_ops_t *ops = (snd_iwffff_ops_t *)private_data;
571 iwffff_instrument_t *ip;
572
573 ip = (iwffff_instrument_t *)KINSTR_DATA(instr);
574 snd_seq_iwffff_instr_free(ops, ip, atomic);
575 return 0;
576}
577
578static void snd_seq_iwffff_notify(void *private_data,
579 snd_seq_kinstr_t *instr,
580 int what)
581{
582 snd_iwffff_ops_t *ops = (snd_iwffff_ops_t *)private_data;
583
584 if (ops->notify)
585 ops->notify(ops->private_data, instr, what);
586}
587
588int snd_seq_iwffff_init(snd_iwffff_ops_t *ops,
589 void *private_data,
590 snd_seq_kinstr_ops_t *next)
591{
592 memset(ops, 0, sizeof(*ops));
593 ops->private_data = private_data;
594 ops->kops.private_data = ops;
595 ops->kops.add_len = sizeof(iwffff_instrument_t);
596 ops->kops.instr_type = SNDRV_SEQ_INSTR_ID_INTERWAVE;
597 ops->kops.put = snd_seq_iwffff_put;
598 ops->kops.get = snd_seq_iwffff_get;
599 ops->kops.get_size = snd_seq_iwffff_get_size;
600 ops->kops.remove = snd_seq_iwffff_remove;
601 ops->kops.notify = snd_seq_iwffff_notify;
602 ops->kops.next = next;
603 return 0;
604}
605
606/*
607 * Init part
608 */
609
610static int __init alsa_ainstr_iw_init(void)
611{
612 return 0;
613}
614
615static void __exit alsa_ainstr_iw_exit(void)
616{
617}
618
619module_init(alsa_ainstr_iw_init)
620module_exit(alsa_ainstr_iw_exit)
621
622EXPORT_SYMBOL(snd_seq_iwffff_init);