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26#ifdef CONFIG_SND_SEQUENCER_OSS
27
28#include <linux/export.h>
29#include <linux/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 if (!snd_emux_inc_count(emu))
122 return -EFAULT;
123
124 memset(&callback, 0, sizeof(callback));
125 callback.owner = THIS_MODULE;
126 callback.event_input = snd_emux_event_oss_input;
127
128 sprintf(tmpname, "%s OSS Port", emu->name);
129 p = snd_emux_create_port(emu, tmpname, 32,
130 1, &callback);
131 if (p == NULL) {
132 snd_printk(KERN_ERR "can't create port\n");
133 snd_emux_dec_count(emu);
134 return -ENOMEM;
135 }
136
137
138 arg->private_data = p;
139 arg->addr.client = p->chset.client;
140 arg->addr.port = p->chset.port;
141 p->oss_arg = arg;
142
143 reset_port_mode(p, arg->seq_mode);
144
145 snd_emux_reset_port(p);
146 return 0;
147}
148
149
150#define DEFAULT_DRUM_FLAGS ((1<<9) | (1<<25))
151
152
153
154
155static void
156reset_port_mode(struct snd_emux_port *port, int midi_mode)
157{
158 if (midi_mode) {
159 port->port_mode = SNDRV_EMUX_PORT_MODE_OSS_MIDI;
160 port->drum_flags = DEFAULT_DRUM_FLAGS;
161 port->volume_atten = 0;
162 port->oss_arg->event_passing = SNDRV_SEQ_OSS_PROCESS_KEYPRESS;
163 } else {
164 port->port_mode = SNDRV_EMUX_PORT_MODE_OSS_SYNTH;
165 port->drum_flags = 0;
166 port->volume_atten = 32;
167 port->oss_arg->event_passing = SNDRV_SEQ_OSS_PROCESS_EVENTS;
168 }
169}
170
171
172
173
174
175static int
176snd_emux_close_seq_oss(struct snd_seq_oss_arg *arg)
177{
178 struct snd_emux *emu;
179 struct snd_emux_port *p;
180
181 if (snd_BUG_ON(!arg))
182 return -ENXIO;
183 p = arg->private_data;
184 if (snd_BUG_ON(!p))
185 return -ENXIO;
186
187 emu = p->emu;
188 if (snd_BUG_ON(!emu))
189 return -ENXIO;
190
191 snd_emux_sounds_off_all(p);
192 snd_soundfont_close_check(emu->sflist, SF_CLIENT_NO(p->chset.port));
193 snd_seq_event_port_detach(p->chset.client, p->chset.port);
194 snd_emux_dec_count(emu);
195
196 return 0;
197}
198
199
200
201
202
203static int
204snd_emux_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format,
205 const char __user *buf, int offs, int count)
206{
207 struct snd_emux *emu;
208 struct snd_emux_port *p;
209 int rc;
210
211 if (snd_BUG_ON(!arg))
212 return -ENXIO;
213 p = arg->private_data;
214 if (snd_BUG_ON(!p))
215 return -ENXIO;
216
217 emu = p->emu;
218 if (snd_BUG_ON(!emu))
219 return -ENXIO;
220
221 if (format == GUS_PATCH)
222 rc = snd_soundfont_load_guspatch(emu->sflist, buf, count,
223 SF_CLIENT_NO(p->chset.port));
224 else if (format == SNDRV_OSS_SOUNDFONT_PATCH) {
225 struct soundfont_patch_info patch;
226 if (count < (int)sizeof(patch))
227 rc = -EINVAL;
228 if (copy_from_user(&patch, buf, sizeof(patch)))
229 rc = -EFAULT;
230 if (patch.type >= SNDRV_SFNT_LOAD_INFO &&
231 patch.type <= SNDRV_SFNT_PROBE_DATA)
232 rc = snd_soundfont_load(emu->sflist, buf, count, SF_CLIENT_NO(p->chset.port));
233 else {
234 if (emu->ops.load_fx)
235 rc = emu->ops.load_fx(emu, patch.type, patch.optarg, buf, count);
236 else
237 rc = -EINVAL;
238 }
239 } else
240 rc = 0;
241 return rc;
242}
243
244
245
246
247
248static int
249snd_emux_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd, unsigned long ioarg)
250{
251 struct snd_emux_port *p;
252 struct snd_emux *emu;
253
254 if (snd_BUG_ON(!arg))
255 return -ENXIO;
256 p = arg->private_data;
257 if (snd_BUG_ON(!p))
258 return -ENXIO;
259
260 emu = p->emu;
261 if (snd_BUG_ON(!emu))
262 return -ENXIO;
263
264 switch (cmd) {
265 case SNDCTL_SEQ_RESETSAMPLES:
266 snd_soundfont_remove_samples(emu->sflist);
267 return 0;
268
269 case SNDCTL_SYNTH_MEMAVL:
270 if (emu->memhdr)
271 return snd_util_mem_avail(emu->memhdr);
272 return 0;
273 }
274
275 return 0;
276}
277
278
279
280
281
282static int
283snd_emux_reset_seq_oss(struct snd_seq_oss_arg *arg)
284{
285 struct snd_emux_port *p;
286
287 if (snd_BUG_ON(!arg))
288 return -ENXIO;
289 p = arg->private_data;
290 if (snd_BUG_ON(!p))
291 return -ENXIO;
292 snd_emux_reset_port(p);
293 return 0;
294}
295
296
297
298
299
300static int
301snd_emux_event_oss_input(struct snd_seq_event *ev, int direct, void *private_data,
302 int atomic, int hop)
303{
304 struct snd_emux *emu;
305 struct snd_emux_port *p;
306 unsigned char cmd, *data;
307
308 p = private_data;
309 if (snd_BUG_ON(!p))
310 return -EINVAL;
311 emu = p->emu;
312 if (snd_BUG_ON(!emu))
313 return -EINVAL;
314 if (ev->type != SNDRV_SEQ_EVENT_OSS)
315 return snd_emux_event_input(ev, direct, private_data, atomic, hop);
316
317 data = ev->data.raw8.d;
318
319 if (data[0] != 0xfe)
320 return 0;
321 cmd = data[2] & _EMUX_OSS_MODE_VALUE_MASK;
322 if (data[2] & _EMUX_OSS_MODE_FLAG)
323 emuspec_control(emu, p, cmd, data, atomic, hop);
324 else
325 gusspec_control(emu, p, cmd, data, atomic, hop);
326 return 0;
327}
328
329
330
331
332
333static void
334emuspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd,
335 unsigned char *event, int atomic, int hop)
336{
337 int voice;
338 unsigned short p1;
339 short p2;
340 int i;
341 struct snd_midi_channel *chan;
342
343 voice = event[3];
344 if (voice < 0 || voice >= port->chset.max_channels)
345 chan = NULL;
346 else
347 chan = &port->chset.channels[voice];
348
349 p1 = *(unsigned short *) &event[4];
350 p2 = *(short *) &event[6];
351
352 switch (cmd) {
353#if 0
354 case _EMUX_OSS_REMOVE_LAST_SAMPLES:
355 snd_soundfont_remove_unlocked(emu->sflist);
356 break;
357#endif
358 case _EMUX_OSS_SEND_EFFECT:
359 if (chan)
360 snd_emux_send_effect_oss(port, chan, p1, p2);
361 break;
362
363 case _EMUX_OSS_TERMINATE_ALL:
364 snd_emux_terminate_all(emu);
365 break;
366
367 case _EMUX_OSS_TERMINATE_CHANNEL:
368
369 break;
370 case _EMUX_OSS_RESET_CHANNEL:
371
372 break;
373
374 case _EMUX_OSS_RELEASE_ALL:
375 fake_event(emu, port, voice, MIDI_CTL_ALL_NOTES_OFF, 0, atomic, hop);
376 break;
377 case _EMUX_OSS_NOTEOFF_ALL:
378 fake_event(emu, port, voice, MIDI_CTL_ALL_SOUNDS_OFF, 0, atomic, hop);
379 break;
380
381 case _EMUX_OSS_INITIAL_VOLUME:
382 if (p2) {
383 port->volume_atten = (short)p1;
384 snd_emux_update_port(port, SNDRV_EMUX_UPDATE_VOLUME);
385 }
386 break;
387
388 case _EMUX_OSS_CHN_PRESSURE:
389 if (chan) {
390 chan->midi_pressure = p1;
391 snd_emux_update_channel(port, chan, SNDRV_EMUX_UPDATE_FMMOD|SNDRV_EMUX_UPDATE_FM2FRQ2);
392 }
393 break;
394
395 case _EMUX_OSS_CHANNEL_MODE:
396 reset_port_mode(port, p1);
397 snd_emux_reset_port(port);
398 break;
399
400 case _EMUX_OSS_DRUM_CHANNELS:
401 port->drum_flags = *(unsigned int*)&event[4];
402 for (i = 0; i < port->chset.max_channels; i++) {
403 chan = &port->chset.channels[i];
404 chan->drum_channel = ((port->drum_flags >> i) & 1) ? 1 : 0;
405 }
406 break;
407
408 case _EMUX_OSS_MISC_MODE:
409 if (p1 < EMUX_MD_END)
410 port->ctrls[p1] = p2;
411 break;
412 case _EMUX_OSS_DEBUG_MODE:
413 break;
414
415 default:
416 if (emu->ops.oss_ioctl)
417 emu->ops.oss_ioctl(emu, cmd, p1, p2);
418 break;
419 }
420}
421
422
423
424
425
426#include <linux/ultrasound.h>
427
428static void
429gusspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd,
430 unsigned char *event, int atomic, int hop)
431{
432 int voice;
433 unsigned short p1;
434 short p2;
435 int plong;
436 struct snd_midi_channel *chan;
437
438 if (port->port_mode != SNDRV_EMUX_PORT_MODE_OSS_SYNTH)
439 return;
440 if (cmd == _GUS_NUMVOICES)
441 return;
442 voice = event[3];
443 if (voice < 0 || voice >= port->chset.max_channels)
444 return;
445
446 chan = &port->chset.channels[voice];
447
448 p1 = *(unsigned short *) &event[4];
449 p2 = *(short *) &event[6];
450 plong = *(int*) &event[4];
451
452 switch (cmd) {
453 case _GUS_VOICESAMPLE:
454 chan->midi_program = p1;
455 return;
456
457 case _GUS_VOICEBALA:
458
459 chan->control[MIDI_CTL_MSB_PAN] = (int)p1 << 3;
460 snd_emux_update_channel(port, chan, SNDRV_EMUX_UPDATE_PAN);
461 return;
462
463 case _GUS_VOICEVOL:
464 case _GUS_VOICEVOL2:
465
466 return;
467
468 case _GUS_RAMPRANGE:
469 case _GUS_RAMPRATE:
470 case _GUS_RAMPMODE:
471 case _GUS_RAMPON:
472 case _GUS_RAMPOFF:
473
474 return;
475
476 case _GUS_VOLUME_SCALE:
477 return;
478
479 case _GUS_VOICE_POS:
480#ifdef SNDRV_EMUX_USE_RAW_EFFECT
481 snd_emux_send_effect(port, chan, EMUX_FX_SAMPLE_START,
482 (short)(plong & 0x7fff),
483 EMUX_FX_FLAG_SET);
484 snd_emux_send_effect(port, chan, EMUX_FX_COARSE_SAMPLE_START,
485 (plong >> 15) & 0xffff,
486 EMUX_FX_FLAG_SET);
487#endif
488 return;
489 }
490}
491
492
493
494
495
496static void
497fake_event(struct snd_emux *emu, struct snd_emux_port *port, int ch, int param, int val, int atomic, int hop)
498{
499 struct snd_seq_event ev;
500 memset(&ev, 0, sizeof(ev));
501 ev.type = SNDRV_SEQ_EVENT_CONTROLLER;
502 ev.data.control.channel = ch;
503 ev.data.control.param = param;
504 ev.data.control.value = val;
505 snd_emux_event_input(&ev, 0, port, atomic, hop);
506}
507
508#endif
509
