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1da177e4 LT |
1 | /* |
2 | * OSS compatible sequencer driver | |
3 | * | |
4 | * synth device handlers | |
5 | * | |
6 | * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | */ | |
22 | ||
23 | #include "seq_oss_synth.h" | |
24 | #include "seq_oss_midi.h" | |
25 | #include "../seq_lock.h" | |
26 | #include <linux/init.h> | |
27 | ||
28 | /* | |
29 | * constants | |
30 | */ | |
31 | #define SNDRV_SEQ_OSS_MAX_SYNTH_NAME 30 | |
32 | #define MAX_SYSEX_BUFLEN 128 | |
33 | ||
34 | ||
35 | /* | |
36 | * definition of synth info records | |
37 | */ | |
38 | ||
39 | /* sysex buffer */ | |
40 | struct seq_oss_synth_sysex_t { | |
41 | int len; | |
42 | int skip; | |
43 | unsigned char buf[MAX_SYSEX_BUFLEN]; | |
44 | }; | |
45 | ||
46 | /* synth info */ | |
47 | struct seq_oss_synth_t { | |
48 | int seq_device; | |
49 | ||
50 | /* for synth_info */ | |
51 | int synth_type; | |
52 | int synth_subtype; | |
53 | int nr_voices; | |
54 | ||
55 | char name[SNDRV_SEQ_OSS_MAX_SYNTH_NAME]; | |
56 | snd_seq_oss_callback_t oper; | |
57 | ||
58 | int opened; | |
59 | ||
60 | void *private_data; | |
61 | snd_use_lock_t use_lock; | |
62 | }; | |
63 | ||
64 | ||
65 | /* | |
66 | * device table | |
67 | */ | |
68 | static int max_synth_devs; | |
69 | static seq_oss_synth_t *synth_devs[SNDRV_SEQ_OSS_MAX_SYNTH_DEVS]; | |
70 | static seq_oss_synth_t midi_synth_dev = { | |
71 | -1, /* seq_device */ | |
72 | SYNTH_TYPE_MIDI, /* synth_type */ | |
73 | 0, /* synth_subtype */ | |
74 | 16, /* nr_voices */ | |
75 | "MIDI", /* name */ | |
76 | }; | |
77 | ||
78 | static DEFINE_SPINLOCK(register_lock); | |
79 | ||
80 | /* | |
81 | * prototypes | |
82 | */ | |
83 | static seq_oss_synth_t *get_synthdev(seq_oss_devinfo_t *dp, int dev); | |
84 | static void reset_channels(seq_oss_synthinfo_t *info); | |
85 | ||
86 | /* | |
87 | * global initialization | |
88 | */ | |
89 | void __init | |
90 | snd_seq_oss_synth_init(void) | |
91 | { | |
92 | snd_use_lock_init(&midi_synth_dev.use_lock); | |
93 | } | |
94 | ||
95 | /* | |
96 | * registration of the synth device | |
97 | */ | |
98 | int | |
99 | snd_seq_oss_synth_register(snd_seq_device_t *dev) | |
100 | { | |
101 | int i; | |
102 | seq_oss_synth_t *rec; | |
103 | snd_seq_oss_reg_t *reg = SNDRV_SEQ_DEVICE_ARGPTR(dev); | |
104 | unsigned long flags; | |
105 | ||
106 | if ((rec = kcalloc(1, sizeof(*rec), GFP_KERNEL)) == NULL) { | |
107 | snd_printk(KERN_ERR "can't malloc synth info\n"); | |
108 | return -ENOMEM; | |
109 | } | |
110 | rec->seq_device = -1; | |
111 | rec->synth_type = reg->type; | |
112 | rec->synth_subtype = reg->subtype; | |
113 | rec->nr_voices = reg->nvoices; | |
114 | rec->oper = reg->oper; | |
115 | rec->private_data = reg->private_data; | |
116 | rec->opened = 0; | |
117 | snd_use_lock_init(&rec->use_lock); | |
118 | ||
119 | /* copy and truncate the name of synth device */ | |
120 | strlcpy(rec->name, dev->name, sizeof(rec->name)); | |
121 | ||
122 | /* registration */ | |
123 | spin_lock_irqsave(®ister_lock, flags); | |
124 | for (i = 0; i < max_synth_devs; i++) { | |
125 | if (synth_devs[i] == NULL) | |
126 | break; | |
127 | } | |
128 | if (i >= max_synth_devs) { | |
129 | if (max_synth_devs >= SNDRV_SEQ_OSS_MAX_SYNTH_DEVS) { | |
130 | spin_unlock_irqrestore(®ister_lock, flags); | |
131 | snd_printk(KERN_ERR "no more synth slot\n"); | |
132 | kfree(rec); | |
133 | return -ENOMEM; | |
134 | } | |
135 | max_synth_devs++; | |
136 | } | |
137 | rec->seq_device = i; | |
138 | synth_devs[i] = rec; | |
139 | debug_printk(("synth %s registered %d\n", rec->name, i)); | |
140 | spin_unlock_irqrestore(®ister_lock, flags); | |
141 | dev->driver_data = rec; | |
142 | #ifdef SNDRV_OSS_INFO_DEV_SYNTH | |
143 | if (i < SNDRV_CARDS) | |
144 | snd_oss_info_register(SNDRV_OSS_INFO_DEV_SYNTH, i, rec->name); | |
145 | #endif | |
146 | return 0; | |
147 | } | |
148 | ||
149 | ||
150 | int | |
151 | snd_seq_oss_synth_unregister(snd_seq_device_t *dev) | |
152 | { | |
153 | int index; | |
154 | seq_oss_synth_t *rec = dev->driver_data; | |
155 | unsigned long flags; | |
156 | ||
157 | spin_lock_irqsave(®ister_lock, flags); | |
158 | for (index = 0; index < max_synth_devs; index++) { | |
159 | if (synth_devs[index] == rec) | |
160 | break; | |
161 | } | |
162 | if (index >= max_synth_devs) { | |
163 | spin_unlock_irqrestore(®ister_lock, flags); | |
164 | snd_printk(KERN_ERR "can't unregister synth\n"); | |
165 | return -EINVAL; | |
166 | } | |
167 | synth_devs[index] = NULL; | |
168 | if (index == max_synth_devs - 1) { | |
169 | for (index--; index >= 0; index--) { | |
170 | if (synth_devs[index]) | |
171 | break; | |
172 | } | |
173 | max_synth_devs = index + 1; | |
174 | } | |
175 | spin_unlock_irqrestore(®ister_lock, flags); | |
176 | #ifdef SNDRV_OSS_INFO_DEV_SYNTH | |
177 | if (rec->seq_device < SNDRV_CARDS) | |
178 | snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_SYNTH, rec->seq_device); | |
179 | #endif | |
180 | ||
181 | snd_use_lock_sync(&rec->use_lock); | |
182 | kfree(rec); | |
183 | ||
184 | return 0; | |
185 | } | |
186 | ||
187 | ||
188 | /* | |
189 | */ | |
190 | static seq_oss_synth_t * | |
191 | get_sdev(int dev) | |
192 | { | |
193 | seq_oss_synth_t *rec; | |
194 | unsigned long flags; | |
195 | ||
196 | spin_lock_irqsave(®ister_lock, flags); | |
197 | rec = synth_devs[dev]; | |
198 | if (rec) | |
199 | snd_use_lock_use(&rec->use_lock); | |
200 | spin_unlock_irqrestore(®ister_lock, flags); | |
201 | return rec; | |
202 | } | |
203 | ||
204 | ||
205 | /* | |
206 | * set up synth tables | |
207 | */ | |
208 | ||
209 | void | |
210 | snd_seq_oss_synth_setup(seq_oss_devinfo_t *dp) | |
211 | { | |
212 | int i; | |
213 | seq_oss_synth_t *rec; | |
214 | seq_oss_synthinfo_t *info; | |
215 | ||
216 | dp->max_synthdev = max_synth_devs; | |
217 | dp->synth_opened = 0; | |
218 | memset(dp->synths, 0, sizeof(dp->synths)); | |
219 | for (i = 0; i < dp->max_synthdev; i++) { | |
220 | rec = get_sdev(i); | |
221 | if (rec == NULL) | |
222 | continue; | |
223 | if (rec->oper.open == NULL || rec->oper.close == NULL) { | |
224 | snd_use_lock_free(&rec->use_lock); | |
225 | continue; | |
226 | } | |
227 | info = &dp->synths[i]; | |
228 | info->arg.app_index = dp->port; | |
229 | info->arg.file_mode = dp->file_mode; | |
230 | info->arg.seq_mode = dp->seq_mode; | |
231 | if (dp->seq_mode == SNDRV_SEQ_OSS_MODE_SYNTH) | |
232 | info->arg.event_passing = SNDRV_SEQ_OSS_PROCESS_EVENTS; | |
233 | else | |
234 | info->arg.event_passing = SNDRV_SEQ_OSS_PASS_EVENTS; | |
235 | info->opened = 0; | |
236 | if (!try_module_get(rec->oper.owner)) { | |
237 | snd_use_lock_free(&rec->use_lock); | |
238 | continue; | |
239 | } | |
240 | if (rec->oper.open(&info->arg, rec->private_data) < 0) { | |
241 | module_put(rec->oper.owner); | |
242 | snd_use_lock_free(&rec->use_lock); | |
243 | continue; | |
244 | } | |
245 | info->nr_voices = rec->nr_voices; | |
246 | if (info->nr_voices > 0) { | |
247 | info->ch = kcalloc(info->nr_voices, sizeof(seq_oss_chinfo_t), GFP_KERNEL); | |
248 | if (!info->ch) | |
249 | BUG(); | |
250 | reset_channels(info); | |
251 | } | |
252 | debug_printk(("synth %d assigned\n", i)); | |
253 | info->opened++; | |
254 | rec->opened++; | |
255 | dp->synth_opened++; | |
256 | snd_use_lock_free(&rec->use_lock); | |
257 | } | |
258 | } | |
259 | ||
260 | ||
261 | /* | |
262 | * set up synth tables for MIDI emulation - /dev/music mode only | |
263 | */ | |
264 | ||
265 | void | |
266 | snd_seq_oss_synth_setup_midi(seq_oss_devinfo_t *dp) | |
267 | { | |
268 | int i; | |
269 | ||
270 | if (dp->max_synthdev >= SNDRV_SEQ_OSS_MAX_SYNTH_DEVS) | |
271 | return; | |
272 | ||
273 | for (i = 0; i < dp->max_mididev; i++) { | |
274 | seq_oss_synthinfo_t *info; | |
275 | info = &dp->synths[dp->max_synthdev]; | |
276 | if (snd_seq_oss_midi_open(dp, i, dp->file_mode) < 0) | |
277 | continue; | |
278 | info->arg.app_index = dp->port; | |
279 | info->arg.file_mode = dp->file_mode; | |
280 | info->arg.seq_mode = dp->seq_mode; | |
281 | info->arg.private_data = info; | |
282 | info->is_midi = 1; | |
283 | info->midi_mapped = i; | |
284 | info->arg.event_passing = SNDRV_SEQ_OSS_PASS_EVENTS; | |
285 | snd_seq_oss_midi_get_addr(dp, i, &info->arg.addr); | |
286 | info->opened = 1; | |
287 | midi_synth_dev.opened++; | |
288 | dp->max_synthdev++; | |
289 | if (dp->max_synthdev >= SNDRV_SEQ_OSS_MAX_SYNTH_DEVS) | |
290 | break; | |
291 | } | |
292 | } | |
293 | ||
294 | ||
295 | /* | |
296 | * clean up synth tables | |
297 | */ | |
298 | ||
299 | void | |
300 | snd_seq_oss_synth_cleanup(seq_oss_devinfo_t *dp) | |
301 | { | |
302 | int i; | |
303 | seq_oss_synth_t *rec; | |
304 | seq_oss_synthinfo_t *info; | |
305 | ||
306 | snd_assert(dp->max_synthdev <= SNDRV_SEQ_OSS_MAX_SYNTH_DEVS, return); | |
307 | for (i = 0; i < dp->max_synthdev; i++) { | |
308 | info = &dp->synths[i]; | |
309 | if (! info->opened) | |
310 | continue; | |
311 | if (info->is_midi) { | |
312 | if (midi_synth_dev.opened > 0) { | |
313 | snd_seq_oss_midi_close(dp, info->midi_mapped); | |
314 | midi_synth_dev.opened--; | |
315 | } | |
316 | } else { | |
317 | rec = get_sdev(i); | |
318 | if (rec == NULL) | |
319 | continue; | |
320 | if (rec->opened > 0) { | |
321 | debug_printk(("synth %d closed\n", i)); | |
322 | rec->oper.close(&info->arg); | |
323 | module_put(rec->oper.owner); | |
324 | rec->opened = 0; | |
325 | } | |
326 | snd_use_lock_free(&rec->use_lock); | |
327 | } | |
328 | if (info->sysex) { | |
329 | kfree(info->sysex); | |
330 | info->sysex = NULL; | |
331 | } | |
332 | if (info->ch) { | |
333 | kfree(info->ch); | |
334 | info->ch = NULL; | |
335 | } | |
336 | } | |
337 | dp->synth_opened = 0; | |
338 | dp->max_synthdev = 0; | |
339 | } | |
340 | ||
341 | /* | |
342 | * check if the specified device is MIDI mapped device | |
343 | */ | |
344 | static int | |
345 | is_midi_dev(seq_oss_devinfo_t *dp, int dev) | |
346 | { | |
347 | if (dev < 0 || dev >= dp->max_synthdev) | |
348 | return 0; | |
349 | if (dp->synths[dev].is_midi) | |
350 | return 1; | |
351 | return 0; | |
352 | } | |
353 | ||
354 | /* | |
355 | * return synth device information pointer | |
356 | */ | |
357 | static seq_oss_synth_t * | |
358 | get_synthdev(seq_oss_devinfo_t *dp, int dev) | |
359 | { | |
360 | seq_oss_synth_t *rec; | |
361 | if (dev < 0 || dev >= dp->max_synthdev) | |
362 | return NULL; | |
363 | if (! dp->synths[dev].opened) | |
364 | return NULL; | |
365 | if (dp->synths[dev].is_midi) | |
366 | return &midi_synth_dev; | |
367 | if ((rec = get_sdev(dev)) == NULL) | |
368 | return NULL; | |
369 | if (! rec->opened) { | |
370 | snd_use_lock_free(&rec->use_lock); | |
371 | return NULL; | |
372 | } | |
373 | return rec; | |
374 | } | |
375 | ||
376 | ||
377 | /* | |
378 | * reset note and velocity on each channel. | |
379 | */ | |
380 | static void | |
381 | reset_channels(seq_oss_synthinfo_t *info) | |
382 | { | |
383 | int i; | |
384 | if (info->ch == NULL || ! info->nr_voices) | |
385 | return; | |
386 | for (i = 0; i < info->nr_voices; i++) { | |
387 | info->ch[i].note = -1; | |
388 | info->ch[i].vel = 0; | |
389 | } | |
390 | } | |
391 | ||
392 | ||
393 | /* | |
394 | * reset synth device: | |
395 | * call reset callback. if no callback is defined, send a heartbeat | |
396 | * event to the corresponding port. | |
397 | */ | |
398 | void | |
399 | snd_seq_oss_synth_reset(seq_oss_devinfo_t *dp, int dev) | |
400 | { | |
401 | seq_oss_synth_t *rec; | |
402 | seq_oss_synthinfo_t *info; | |
403 | ||
404 | snd_assert(dev >= 0 && dev < dp->max_synthdev, return); | |
405 | info = &dp->synths[dev]; | |
406 | if (! info->opened) | |
407 | return; | |
408 | if (info->sysex) | |
409 | info->sysex->len = 0; /* reset sysex */ | |
410 | reset_channels(info); | |
411 | if (info->is_midi) { | |
412 | if (midi_synth_dev.opened <= 0) | |
413 | return; | |
414 | snd_seq_oss_midi_reset(dp, info->midi_mapped); | |
415 | /* reopen the device */ | |
416 | snd_seq_oss_midi_close(dp, dev); | |
417 | if (snd_seq_oss_midi_open(dp, info->midi_mapped, | |
418 | dp->file_mode) < 0) { | |
419 | midi_synth_dev.opened--; | |
420 | info->opened = 0; | |
421 | if (info->sysex) { | |
422 | kfree(info->sysex); | |
423 | info->sysex = NULL; | |
424 | } | |
425 | if (info->ch) { | |
426 | kfree(info->ch); | |
427 | info->ch = NULL; | |
428 | } | |
429 | } | |
430 | return; | |
431 | } | |
432 | ||
433 | rec = get_sdev(dev); | |
434 | if (rec == NULL) | |
435 | return; | |
436 | if (rec->oper.reset) { | |
437 | rec->oper.reset(&info->arg); | |
438 | } else { | |
439 | snd_seq_event_t ev; | |
440 | memset(&ev, 0, sizeof(ev)); | |
441 | snd_seq_oss_fill_addr(dp, &ev, info->arg.addr.client, | |
442 | info->arg.addr.port); | |
443 | ev.type = SNDRV_SEQ_EVENT_RESET; | |
444 | snd_seq_oss_dispatch(dp, &ev, 0, 0); | |
445 | } | |
446 | snd_use_lock_free(&rec->use_lock); | |
447 | } | |
448 | ||
449 | ||
450 | /* | |
451 | * load a patch record: | |
452 | * call load_patch callback function | |
453 | */ | |
454 | int | |
455 | snd_seq_oss_synth_load_patch(seq_oss_devinfo_t *dp, int dev, int fmt, | |
456 | const char __user *buf, int p, int c) | |
457 | { | |
458 | seq_oss_synth_t *rec; | |
459 | int rc; | |
460 | ||
461 | if (dev < 0 || dev >= dp->max_synthdev) | |
462 | return -ENXIO; | |
463 | ||
464 | if (is_midi_dev(dp, dev)) | |
465 | return 0; | |
466 | if ((rec = get_synthdev(dp, dev)) == NULL) | |
467 | return -ENXIO; | |
468 | ||
469 | if (rec->oper.load_patch == NULL) | |
470 | rc = -ENXIO; | |
471 | else | |
472 | rc = rec->oper.load_patch(&dp->synths[dev].arg, fmt, buf, p, c); | |
473 | snd_use_lock_free(&rec->use_lock); | |
474 | return rc; | |
475 | } | |
476 | ||
477 | /* | |
478 | * check if the device is valid synth device | |
479 | */ | |
480 | int | |
481 | snd_seq_oss_synth_is_valid(seq_oss_devinfo_t *dp, int dev) | |
482 | { | |
483 | seq_oss_synth_t *rec; | |
484 | rec = get_synthdev(dp, dev); | |
485 | if (rec) { | |
486 | snd_use_lock_free(&rec->use_lock); | |
487 | return 1; | |
488 | } | |
489 | return 0; | |
490 | } | |
491 | ||
492 | ||
493 | /* | |
494 | * receive OSS 6 byte sysex packet: | |
495 | * the full sysex message will be sent if it reaches to the end of data | |
496 | * (0xff). | |
497 | */ | |
498 | int | |
499 | snd_seq_oss_synth_sysex(seq_oss_devinfo_t *dp, int dev, unsigned char *buf, snd_seq_event_t *ev) | |
500 | { | |
501 | int i, send; | |
502 | unsigned char *dest; | |
503 | seq_oss_synth_sysex_t *sysex; | |
504 | ||
505 | if (! snd_seq_oss_synth_is_valid(dp, dev)) | |
506 | return -ENXIO; | |
507 | ||
508 | sysex = dp->synths[dev].sysex; | |
509 | if (sysex == NULL) { | |
510 | sysex = kcalloc(1, sizeof(*sysex), GFP_KERNEL); | |
511 | if (sysex == NULL) | |
512 | return -ENOMEM; | |
513 | dp->synths[dev].sysex = sysex; | |
514 | } | |
515 | ||
516 | send = 0; | |
517 | dest = sysex->buf + sysex->len; | |
518 | /* copy 6 byte packet to the buffer */ | |
519 | for (i = 0; i < 6; i++) { | |
520 | if (buf[i] == 0xff) { | |
521 | send = 1; | |
522 | break; | |
523 | } | |
524 | dest[i] = buf[i]; | |
525 | sysex->len++; | |
526 | if (sysex->len >= MAX_SYSEX_BUFLEN) { | |
527 | sysex->len = 0; | |
528 | sysex->skip = 1; | |
529 | break; | |
530 | } | |
531 | } | |
532 | ||
533 | if (sysex->len && send) { | |
534 | if (sysex->skip) { | |
535 | sysex->skip = 0; | |
536 | sysex->len = 0; | |
537 | return -EINVAL; /* skip */ | |
538 | } | |
539 | /* copy the data to event record and send it */ | |
540 | ev->flags = SNDRV_SEQ_EVENT_LENGTH_VARIABLE; | |
541 | if (snd_seq_oss_synth_addr(dp, dev, ev)) | |
542 | return -EINVAL; | |
543 | ev->data.ext.len = sysex->len; | |
544 | ev->data.ext.ptr = sysex->buf; | |
545 | sysex->len = 0; | |
546 | return 0; | |
547 | } | |
548 | ||
549 | return -EINVAL; /* skip */ | |
550 | } | |
551 | ||
552 | /* | |
553 | * fill the event source/destination addresses | |
554 | */ | |
555 | int | |
556 | snd_seq_oss_synth_addr(seq_oss_devinfo_t *dp, int dev, snd_seq_event_t *ev) | |
557 | { | |
558 | if (! snd_seq_oss_synth_is_valid(dp, dev)) | |
559 | return -EINVAL; | |
560 | snd_seq_oss_fill_addr(dp, ev, dp->synths[dev].arg.addr.client, | |
561 | dp->synths[dev].arg.addr.port); | |
562 | return 0; | |
563 | } | |
564 | ||
565 | ||
566 | /* | |
567 | * OSS compatible ioctl | |
568 | */ | |
569 | int | |
570 | snd_seq_oss_synth_ioctl(seq_oss_devinfo_t *dp, int dev, unsigned int cmd, unsigned long addr) | |
571 | { | |
572 | seq_oss_synth_t *rec; | |
573 | int rc; | |
574 | ||
575 | if (is_midi_dev(dp, dev)) | |
576 | return -ENXIO; | |
577 | if ((rec = get_synthdev(dp, dev)) == NULL) | |
578 | return -ENXIO; | |
579 | if (rec->oper.ioctl == NULL) | |
580 | rc = -ENXIO; | |
581 | else | |
582 | rc = rec->oper.ioctl(&dp->synths[dev].arg, cmd, addr); | |
583 | snd_use_lock_free(&rec->use_lock); | |
584 | return rc; | |
585 | } | |
586 | ||
587 | ||
588 | /* | |
589 | * send OSS raw events - SEQ_PRIVATE and SEQ_VOLUME | |
590 | */ | |
591 | int | |
592 | snd_seq_oss_synth_raw_event(seq_oss_devinfo_t *dp, int dev, unsigned char *data, snd_seq_event_t *ev) | |
593 | { | |
594 | if (! snd_seq_oss_synth_is_valid(dp, dev) || is_midi_dev(dp, dev)) | |
595 | return -ENXIO; | |
596 | ev->type = SNDRV_SEQ_EVENT_OSS; | |
597 | memcpy(ev->data.raw8.d, data, 8); | |
598 | return snd_seq_oss_synth_addr(dp, dev, ev); | |
599 | } | |
600 | ||
601 | ||
602 | /* | |
603 | * create OSS compatible synth_info record | |
604 | */ | |
605 | int | |
606 | snd_seq_oss_synth_make_info(seq_oss_devinfo_t *dp, int dev, struct synth_info *inf) | |
607 | { | |
608 | seq_oss_synth_t *rec; | |
609 | ||
610 | if (dp->synths[dev].is_midi) { | |
611 | struct midi_info minf; | |
612 | snd_seq_oss_midi_make_info(dp, dp->synths[dev].midi_mapped, &minf); | |
613 | inf->synth_type = SYNTH_TYPE_MIDI; | |
614 | inf->synth_subtype = 0; | |
615 | inf->nr_voices = 16; | |
616 | inf->device = dev; | |
617 | strlcpy(inf->name, minf.name, sizeof(inf->name)); | |
618 | } else { | |
619 | if ((rec = get_synthdev(dp, dev)) == NULL) | |
620 | return -ENXIO; | |
621 | inf->synth_type = rec->synth_type; | |
622 | inf->synth_subtype = rec->synth_subtype; | |
623 | inf->nr_voices = rec->nr_voices; | |
624 | inf->device = dev; | |
625 | strlcpy(inf->name, rec->name, sizeof(inf->name)); | |
626 | snd_use_lock_free(&rec->use_lock); | |
627 | } | |
628 | return 0; | |
629 | } | |
630 | ||
631 | ||
632 | /* | |
633 | * proc interface | |
634 | */ | |
635 | void | |
636 | snd_seq_oss_synth_info_read(snd_info_buffer_t *buf) | |
637 | { | |
638 | int i; | |
639 | seq_oss_synth_t *rec; | |
640 | ||
641 | snd_iprintf(buf, "\nNumber of synth devices: %d\n", max_synth_devs); | |
642 | for (i = 0; i < max_synth_devs; i++) { | |
643 | snd_iprintf(buf, "\nsynth %d: ", i); | |
644 | rec = get_sdev(i); | |
645 | if (rec == NULL) { | |
646 | snd_iprintf(buf, "*empty*\n"); | |
647 | continue; | |
648 | } | |
649 | snd_iprintf(buf, "[%s]\n", rec->name); | |
650 | snd_iprintf(buf, " type 0x%x : subtype 0x%x : voices %d\n", | |
651 | rec->synth_type, rec->synth_subtype, | |
652 | rec->nr_voices); | |
653 | snd_iprintf(buf, " capabilities : ioctl %s / load_patch %s\n", | |
654 | enabled_str((long)rec->oper.ioctl), | |
655 | enabled_str((long)rec->oper.load_patch)); | |
656 | snd_use_lock_free(&rec->use_lock); | |
657 | } | |
658 | } | |
659 |