1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26#ifdef CONFIG_SND_SEQUENCER_OSS
27
28#include <linux/export.h>
29#include <asm/uaccess.h>
30#include <sound/core.h>
31#include "emux_voice.h"
32#include <sound/asoundef.h>
33
34static int snd_emux_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure);
35static int snd_emux_close_seq_oss(struct snd_seq_oss_arg *arg);
36static int snd_emux_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd,
37 unsigned long ioarg);
38static int snd_emux_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format,
39 const char __user *buf, int offs, int count);
40static int snd_emux_reset_seq_oss(struct snd_seq_oss_arg *arg);
41static int snd_emux_event_oss_input(struct snd_seq_event *ev, int direct,
42 void *private, int atomic, int hop);
43static void reset_port_mode(struct snd_emux_port *port, int midi_mode);
44static void emuspec_control(struct snd_emux *emu, struct snd_emux_port *port,
45 int cmd, unsigned char *event, int atomic, int hop);
46static void gusspec_control(struct snd_emux *emu, struct snd_emux_port *port,
47 int cmd, unsigned char *event, int atomic, int hop);
48static void fake_event(struct snd_emux *emu, struct snd_emux_port *port,
49 int ch, int param, int val, int atomic, int hop);
50
51
52static struct snd_seq_oss_callback oss_callback = {
53 .owner = THIS_MODULE,
54 .open = snd_emux_open_seq_oss,
55 .close = snd_emux_close_seq_oss,
56 .ioctl = snd_emux_ioctl_seq_oss,
57 .load_patch = snd_emux_load_patch_seq_oss,
58 .reset = snd_emux_reset_seq_oss,
59};
60
61
62
63
64
65
66void
67snd_emux_init_seq_oss(struct snd_emux *emu)
68{
69 struct snd_seq_oss_reg *arg;
70 struct snd_seq_device *dev;
71
72 if (snd_seq_device_new(emu->card, 0, SNDRV_SEQ_DEV_ID_OSS,
73 sizeof(struct snd_seq_oss_reg), &dev) < 0)
74 return;
75
76 emu->oss_synth = dev;
77 strcpy(dev->name, emu->name);
78 arg = SNDRV_SEQ_DEVICE_ARGPTR(dev);
79 arg->type = SYNTH_TYPE_SAMPLE;
80 arg->subtype = SAMPLE_TYPE_AWE32;
81 arg->nvoices = emu->max_voices;
82 arg->oper = oss_callback;
83 arg->private_data = emu;
84
85
86 snd_device_register(emu->card, dev);
87}
88
89
90
91
92
93void
94snd_emux_detach_seq_oss(struct snd_emux *emu)
95{
96 if (emu->oss_synth) {
97 snd_device_free(emu->card, emu->oss_synth);
98 emu->oss_synth = NULL;
99 }
100}
101
102
103
104#define SF_CLIENT_NO(p) ((p) + 0x1000)
105
106
107
108
109static int
110snd_emux_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure)
111{
112 struct snd_emux *emu;
113 struct snd_emux_port *p;
114 struct snd_seq_port_callback callback;
115 char tmpname[64];
116
117 emu = closure;
118 if (snd_BUG_ON(!arg || !emu))
119 return -ENXIO;
120
121 mutex_lock(&emu->register_mutex);
122
123 if (!snd_emux_inc_count(emu)) {
124 mutex_unlock(&emu->register_mutex);
125 return -EFAULT;
126 }
127
128 memset(&callback, 0, sizeof(callback));
129 callback.owner = THIS_MODULE;
130 callback.event_input = snd_emux_event_oss_input;
131
132 sprintf(tmpname, "%s OSS Port", emu->name);
133 p = snd_emux_create_port(emu, tmpname, 32,
134 1, &callback);
135 if (p == NULL) {
136 snd_printk(KERN_ERR "can't create port\n");
137 snd_emux_dec_count(emu);
138 mutex_unlock(&emu->register_mutex);
139 return -ENOMEM;
140 }
141
142
143 arg->private_data = p;
144 arg->addr.client = p->chset.client;
145 arg->addr.port = p->chset.port;
146 p->oss_arg = arg;
147
148 reset_port_mode(p, arg->seq_mode);
149
150 snd_emux_reset_port(p);
151
152 mutex_unlock(&emu->register_mutex);
153 return 0;
154}
155
156
157#define DEFAULT_DRUM_FLAGS ((1<<9) | (1<<25))
158
159
160
161
162static void
163reset_port_mode(struct snd_emux_port *port, int midi_mode)
164{
165 if (midi_mode) {
166 port->port_mode = SNDRV_EMUX_PORT_MODE_OSS_MIDI;
167 port->drum_flags = DEFAULT_DRUM_FLAGS;
168 port->volume_atten = 0;
169 port->oss_arg->event_passing = SNDRV_SEQ_OSS_PROCESS_KEYPRESS;
170 } else {
171 port->port_mode = SNDRV_EMUX_PORT_MODE_OSS_SYNTH;
172 port->drum_flags = 0;
173 port->volume_atten = 32;
174 port->oss_arg->event_passing = SNDRV_SEQ_OSS_PROCESS_EVENTS;
175 }
176}
177
178
179
180
181
182static int
183snd_emux_close_seq_oss(struct snd_seq_oss_arg *arg)
184{
185 struct snd_emux *emu;
186 struct snd_emux_port *p;
187
188 if (snd_BUG_ON(!arg))
189 return -ENXIO;
190 p = arg->private_data;
191 if (snd_BUG_ON(!p))
192 return -ENXIO;
193
194 emu = p->emu;
195 if (snd_BUG_ON(!emu))
196 return -ENXIO;
197
198 mutex_lock(&emu->register_mutex);
199 snd_emux_sounds_off_all(p);
200 snd_soundfont_close_check(emu->sflist, SF_CLIENT_NO(p->chset.port));
201 snd_seq_event_port_detach(p->chset.client, p->chset.port);
202 snd_emux_dec_count(emu);
203
204 mutex_unlock(&emu->register_mutex);
205 return 0;
206}
207
208
209
210
211
212static int
213snd_emux_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format,
214 const char __user *buf, int offs, int count)
215{
216 struct snd_emux *emu;
217 struct snd_emux_port *p;
218 int rc;
219
220 if (snd_BUG_ON(!arg))
221 return -ENXIO;
222 p = arg->private_data;
223 if (snd_BUG_ON(!p))
224 return -ENXIO;
225
226 emu = p->emu;
227 if (snd_BUG_ON(!emu))
228 return -ENXIO;
229
230 if (format == GUS_PATCH)
231 rc = snd_soundfont_load_guspatch(emu->sflist, buf, count,
232 SF_CLIENT_NO(p->chset.port));
233 else if (format == SNDRV_OSS_SOUNDFONT_PATCH) {
234 struct soundfont_patch_info patch;
235 if (count < (int)sizeof(patch))
236 rc = -EINVAL;
237 if (copy_from_user(&patch, buf, sizeof(patch)))
238 rc = -EFAULT;
239 if (patch.type >= SNDRV_SFNT_LOAD_INFO &&
240 patch.type <= SNDRV_SFNT_PROBE_DATA)
241 rc = snd_soundfont_load(emu->sflist, buf, count, SF_CLIENT_NO(p->chset.port));
242 else {
243 if (emu->ops.load_fx)
244 rc = emu->ops.load_fx(emu, patch.type, patch.optarg, buf, count);
245 else
246 rc = -EINVAL;
247 }
248 } else
249 rc = 0;
250 return rc;
251}
252
253
254
255
256
257static int
258snd_emux_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd, unsigned long ioarg)
259{
260 struct snd_emux_port *p;
261 struct snd_emux *emu;
262
263 if (snd_BUG_ON(!arg))
264 return -ENXIO;
265 p = arg->private_data;
266 if (snd_BUG_ON(!p))
267 return -ENXIO;
268
269 emu = p->emu;
270 if (snd_BUG_ON(!emu))
271 return -ENXIO;
272
273 switch (cmd) {
274 case SNDCTL_SEQ_RESETSAMPLES:
275 snd_soundfont_remove_samples(emu->sflist);
276 return 0;
277
278 case SNDCTL_SYNTH_MEMAVL:
279 if (emu->memhdr)
280 return snd_util_mem_avail(emu->memhdr);
281 return 0;
282 }
283
284 return 0;
285}
286
287
288
289
290
291static int
292snd_emux_reset_seq_oss(struct snd_seq_oss_arg *arg)
293{
294 struct snd_emux_port *p;
295
296 if (snd_BUG_ON(!arg))
297 return -ENXIO;
298 p = arg->private_data;
299 if (snd_BUG_ON(!p))
300 return -ENXIO;
301 snd_emux_reset_port(p);
302 return 0;
303}
304
305
306
307
308
309static int
310snd_emux_event_oss_input(struct snd_seq_event *ev, int direct, void *private_data,
311 int atomic, int hop)
312{
313 struct snd_emux *emu;
314 struct snd_emux_port *p;
315 unsigned char cmd, *data;
316
317 p = private_data;
318 if (snd_BUG_ON(!p))
319 return -EINVAL;
320 emu = p->emu;
321 if (snd_BUG_ON(!emu))
322 return -EINVAL;
323 if (ev->type != SNDRV_SEQ_EVENT_OSS)
324 return snd_emux_event_input(ev, direct, private_data, atomic, hop);
325
326 data = ev->data.raw8.d;
327
328 if (data[0] != 0xfe)
329 return 0;
330 cmd = data[2] & _EMUX_OSS_MODE_VALUE_MASK;
331 if (data[2] & _EMUX_OSS_MODE_FLAG)
332 emuspec_control(emu, p, cmd, data, atomic, hop);
333 else
334 gusspec_control(emu, p, cmd, data, atomic, hop);
335 return 0;
336}
337
338
339
340
341
342static void
343emuspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd,
344 unsigned char *event, int atomic, int hop)
345{
346 int voice;
347 unsigned short p1;
348 short p2;
349 int i;
350 struct snd_midi_channel *chan;
351
352 voice = event[3];
353 if (voice < 0 || voice >= port->chset.max_channels)
354 chan = NULL;
355 else
356 chan = &port->chset.channels[voice];
357
358 p1 = *(unsigned short *) &event[4];
359 p2 = *(short *) &event[6];
360
361 switch (cmd) {
362#if 0
363 case _EMUX_OSS_REMOVE_LAST_SAMPLES:
364 snd_soundfont_remove_unlocked(emu->sflist);
365 break;
366#endif
367 case _EMUX_OSS_SEND_EFFECT:
368 if (chan)
369 snd_emux_send_effect_oss(port, chan, p1, p2);
370 break;
371
372 case _EMUX_OSS_TERMINATE_ALL:
373 snd_emux_terminate_all(emu);
374 break;
375
376 case _EMUX_OSS_TERMINATE_CHANNEL:
377
378 break;
379 case _EMUX_OSS_RESET_CHANNEL:
380
381 break;
382
383 case _EMUX_OSS_RELEASE_ALL:
384 fake_event(emu, port, voice, MIDI_CTL_ALL_NOTES_OFF, 0, atomic, hop);
385 break;
386 case _EMUX_OSS_NOTEOFF_ALL:
387 fake_event(emu, port, voice, MIDI_CTL_ALL_SOUNDS_OFF, 0, atomic, hop);
388 break;
389
390 case _EMUX_OSS_INITIAL_VOLUME:
391 if (p2) {
392 port->volume_atten = (short)p1;
393 snd_emux_update_port(port, SNDRV_EMUX_UPDATE_VOLUME);
394 }
395 break;
396
397 case _EMUX_OSS_CHN_PRESSURE:
398 if (chan) {
399 chan->midi_pressure = p1;
400 snd_emux_update_channel(port, chan, SNDRV_EMUX_UPDATE_FMMOD|SNDRV_EMUX_UPDATE_FM2FRQ2);
401 }
402 break;
403
404 case _EMUX_OSS_CHANNEL_MODE:
405 reset_port_mode(port, p1);
406 snd_emux_reset_port(port);
407 break;
408
409 case _EMUX_OSS_DRUM_CHANNELS:
410 port->drum_flags = *(unsigned int*)&event[4];
411 for (i = 0; i < port->chset.max_channels; i++) {
412 chan = &port->chset.channels[i];
413 chan->drum_channel = ((port->drum_flags >> i) & 1) ? 1 : 0;
414 }
415 break;
416
417 case _EMUX_OSS_MISC_MODE:
418 if (p1 < EMUX_MD_END)
419 port->ctrls[p1] = p2;
420 break;
421 case _EMUX_OSS_DEBUG_MODE:
422 break;
423
424 default:
425 if (emu->ops.oss_ioctl)
426 emu->ops.oss_ioctl(emu, cmd, p1, p2);
427 break;
428 }
429}
430
431
432
433
434
435#include <linux/ultrasound.h>
436
437static void
438gusspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd,
439 unsigned char *event, int atomic, int hop)
440{
441 int voice;
442 unsigned short p1;
443 short p2;
444 int plong;
445 struct snd_midi_channel *chan;
446
447 if (port->port_mode != SNDRV_EMUX_PORT_MODE_OSS_SYNTH)
448 return;
449 if (cmd == _GUS_NUMVOICES)
450 return;
451 voice = event[3];
452 if (voice < 0 || voice >= port->chset.max_channels)
453 return;
454
455 chan = &port->chset.channels[voice];
456
457 p1 = *(unsigned short *) &event[4];
458 p2 = *(short *) &event[6];
459 plong = *(int*) &event[4];
460
461 switch (cmd) {
462 case _GUS_VOICESAMPLE:
463 chan->midi_program = p1;
464 return;
465
466 case _GUS_VOICEBALA:
467
468 chan->control[MIDI_CTL_MSB_PAN] = (int)p1 << 3;
469 snd_emux_update_channel(port, chan, SNDRV_EMUX_UPDATE_PAN);
470 return;
471
472 case _GUS_VOICEVOL:
473 case _GUS_VOICEVOL2:
474
475 return;
476
477 case _GUS_RAMPRANGE:
478 case _GUS_RAMPRATE:
479 case _GUS_RAMPMODE:
480 case _GUS_RAMPON:
481 case _GUS_RAMPOFF:
482
483 return;
484
485 case _GUS_VOLUME_SCALE:
486 return;
487
488 case _GUS_VOICE_POS:
489#ifdef SNDRV_EMUX_USE_RAW_EFFECT
490 snd_emux_send_effect(port, chan, EMUX_FX_SAMPLE_START,
491 (short)(plong & 0x7fff),
492 EMUX_FX_FLAG_SET);
493 snd_emux_send_effect(port, chan, EMUX_FX_COARSE_SAMPLE_START,
494 (plong >> 15) & 0xffff,
495 EMUX_FX_FLAG_SET);
496#endif
497 return;
498 }
499}
500
501
502
503
504
505static void
506fake_event(struct snd_emux *emu, struct snd_emux_port *port, int ch, int param, int val, int atomic, int hop)
507{
508 struct snd_seq_event ev;
509 memset(&ev, 0, sizeof(ev));
510 ev.type = SNDRV_SEQ_EVENT_CONTROLLER;
511 ev.data.control.channel = ch;
512 ev.data.control.param = param;
513 ev.data.control.value = val;
514 snd_emux_event_input(&ev, 0, port, atomic, hop);
515}
516
517#endif
518
