Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Interface for OSS sequencer emulation | |
3 | * | |
4 | * Copyright (C) 1999 Takashi Iwai <tiwai@suse.de> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | * | |
20 | * Changes | |
21 | * 19990227 Steve Ratcliffe Made separate file and merged in latest | |
22 | * midi emulation. | |
23 | */ | |
24 | ||
1da177e4 LT |
25 | |
26 | #ifdef CONFIG_SND_SEQUENCER_OSS | |
27 | ||
d81a6d71 | 28 | #include <linux/export.h> |
1da177e4 LT |
29 | #include <asm/uaccess.h> |
30 | #include <sound/core.h> | |
31 | #include "emux_voice.h" | |
32 | #include <sound/asoundef.h> | |
33 | ||
03da312a TI |
34 | static int snd_emux_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure); |
35 | static int snd_emux_close_seq_oss(struct snd_seq_oss_arg *arg); | |
36 | static int snd_emux_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd, | |
37 | unsigned long ioarg); | |
38 | static int snd_emux_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format, | |
39 | const char __user *buf, int offs, int count); | |
40 | static int snd_emux_reset_seq_oss(struct snd_seq_oss_arg *arg); | |
41 | static int snd_emux_event_oss_input(struct snd_seq_event *ev, int direct, | |
42 | void *private, int atomic, int hop); | |
43 | static void reset_port_mode(struct snd_emux_port *port, int midi_mode); | |
44 | static void emuspec_control(struct snd_emux *emu, struct snd_emux_port *port, | |
45 | int cmd, unsigned char *event, int atomic, int hop); | |
46 | static void gusspec_control(struct snd_emux *emu, struct snd_emux_port *port, | |
47 | int cmd, unsigned char *event, int atomic, int hop); | |
48 | static void fake_event(struct snd_emux *emu, struct snd_emux_port *port, | |
49 | int ch, int param, int val, int atomic, int hop); | |
1da177e4 LT |
50 | |
51 | /* operators */ | |
03da312a | 52 | static struct snd_seq_oss_callback oss_callback = { |
1da177e4 LT |
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 | * register OSS synth | |
64 | */ | |
65 | ||
66 | void | |
03da312a | 67 | snd_emux_init_seq_oss(struct snd_emux *emu) |
1da177e4 | 68 | { |
03da312a TI |
69 | struct snd_seq_oss_reg *arg; |
70 | struct snd_seq_device *dev; | |
1da177e4 LT |
71 | |
72 | if (snd_seq_device_new(emu->card, 0, SNDRV_SEQ_DEV_ID_OSS, | |
03da312a | 73 | sizeof(struct snd_seq_oss_reg), &dev) < 0) |
1da177e4 LT |
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 | /* register to OSS synth table */ | |
86 | snd_device_register(emu->card, dev); | |
87 | } | |
88 | ||
89 | ||
90 | /* | |
91 | * unregister | |
92 | */ | |
93 | void | |
03da312a | 94 | snd_emux_detach_seq_oss(struct snd_emux *emu) |
1da177e4 LT |
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 | /* use port number as a unique soundfont client number */ | |
104 | #define SF_CLIENT_NO(p) ((p) + 0x1000) | |
105 | ||
106 | /* | |
107 | * open port for OSS sequencer | |
108 | */ | |
109 | static int | |
03da312a | 110 | snd_emux_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure) |
1da177e4 | 111 | { |
03da312a TI |
112 | struct snd_emux *emu; |
113 | struct snd_emux_port *p; | |
114 | struct snd_seq_port_callback callback; | |
1da177e4 LT |
115 | char tmpname[64]; |
116 | ||
117 | emu = closure; | |
5e246b85 TI |
118 | if (snd_BUG_ON(!arg || !emu)) |
119 | return -ENXIO; | |
1da177e4 | 120 | |
ef9f0a42 | 121 | mutex_lock(&emu->register_mutex); |
1da177e4 LT |
122 | |
123 | if (!snd_emux_inc_count(emu)) { | |
ef9f0a42 | 124 | mutex_unlock(&emu->register_mutex); |
1da177e4 LT |
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) { | |
42b0158b | 136 | snd_printk(KERN_ERR "can't create port\n"); |
1da177e4 | 137 | snd_emux_dec_count(emu); |
ef9f0a42 | 138 | mutex_unlock(&emu->register_mutex); |
1da177e4 LT |
139 | return -ENOMEM; |
140 | } | |
141 | ||
142 | /* fill the argument data */ | |
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 | ||
ef9f0a42 | 152 | mutex_unlock(&emu->register_mutex); |
1da177e4 LT |
153 | return 0; |
154 | } | |
155 | ||
156 | ||
157 | #define DEFAULT_DRUM_FLAGS ((1<<9) | (1<<25)) | |
158 | ||
159 | /* | |
160 | * reset port mode | |
161 | */ | |
162 | static void | |
03da312a | 163 | reset_port_mode(struct snd_emux_port *port, int midi_mode) |
1da177e4 LT |
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 | * close port | |
181 | */ | |
182 | static int | |
03da312a | 183 | snd_emux_close_seq_oss(struct snd_seq_oss_arg *arg) |
1da177e4 | 184 | { |
03da312a TI |
185 | struct snd_emux *emu; |
186 | struct snd_emux_port *p; | |
1da177e4 | 187 | |
5e246b85 TI |
188 | if (snd_BUG_ON(!arg)) |
189 | return -ENXIO; | |
1da177e4 | 190 | p = arg->private_data; |
5e246b85 TI |
191 | if (snd_BUG_ON(!p)) |
192 | return -ENXIO; | |
1da177e4 LT |
193 | |
194 | emu = p->emu; | |
5e246b85 TI |
195 | if (snd_BUG_ON(!emu)) |
196 | return -ENXIO; | |
1da177e4 | 197 | |
ef9f0a42 | 198 | mutex_lock(&emu->register_mutex); |
1da177e4 LT |
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 | ||
ef9f0a42 | 204 | mutex_unlock(&emu->register_mutex); |
1da177e4 LT |
205 | return 0; |
206 | } | |
207 | ||
208 | ||
209 | /* | |
210 | * load patch | |
211 | */ | |
212 | static int | |
03da312a | 213 | snd_emux_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format, |
1da177e4 LT |
214 | const char __user *buf, int offs, int count) |
215 | { | |
03da312a TI |
216 | struct snd_emux *emu; |
217 | struct snd_emux_port *p; | |
1da177e4 LT |
218 | int rc; |
219 | ||
5e246b85 TI |
220 | if (snd_BUG_ON(!arg)) |
221 | return -ENXIO; | |
1da177e4 | 222 | p = arg->private_data; |
5e246b85 TI |
223 | if (snd_BUG_ON(!p)) |
224 | return -ENXIO; | |
1da177e4 LT |
225 | |
226 | emu = p->emu; | |
5e246b85 TI |
227 | if (snd_BUG_ON(!emu)) |
228 | return -ENXIO; | |
1da177e4 LT |
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) { | |
03da312a | 234 | struct soundfont_patch_info patch; |
1da177e4 LT |
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 | * ioctl | |
256 | */ | |
257 | static int | |
03da312a | 258 | snd_emux_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd, unsigned long ioarg) |
1da177e4 | 259 | { |
03da312a TI |
260 | struct snd_emux_port *p; |
261 | struct snd_emux *emu; | |
1da177e4 | 262 | |
5e246b85 TI |
263 | if (snd_BUG_ON(!arg)) |
264 | return -ENXIO; | |
1da177e4 | 265 | p = arg->private_data; |
5e246b85 TI |
266 | if (snd_BUG_ON(!p)) |
267 | return -ENXIO; | |
1da177e4 LT |
268 | |
269 | emu = p->emu; | |
5e246b85 TI |
270 | if (snd_BUG_ON(!emu)) |
271 | return -ENXIO; | |
1da177e4 LT |
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 | * reset device | |
290 | */ | |
291 | static int | |
03da312a | 292 | snd_emux_reset_seq_oss(struct snd_seq_oss_arg *arg) |
1da177e4 | 293 | { |
03da312a | 294 | struct snd_emux_port *p; |
1da177e4 | 295 | |
5e246b85 TI |
296 | if (snd_BUG_ON(!arg)) |
297 | return -ENXIO; | |
1da177e4 | 298 | p = arg->private_data; |
5e246b85 TI |
299 | if (snd_BUG_ON(!p)) |
300 | return -ENXIO; | |
1da177e4 LT |
301 | snd_emux_reset_port(p); |
302 | return 0; | |
303 | } | |
304 | ||
305 | ||
306 | /* | |
307 | * receive raw events: only SEQ_PRIVATE is accepted. | |
308 | */ | |
309 | static int | |
03da312a | 310 | snd_emux_event_oss_input(struct snd_seq_event *ev, int direct, void *private_data, |
1da177e4 LT |
311 | int atomic, int hop) |
312 | { | |
03da312a TI |
313 | struct snd_emux *emu; |
314 | struct snd_emux_port *p; | |
1da177e4 LT |
315 | unsigned char cmd, *data; |
316 | ||
317 | p = private_data; | |
5e246b85 TI |
318 | if (snd_BUG_ON(!p)) |
319 | return -EINVAL; | |
1da177e4 | 320 | emu = p->emu; |
5e246b85 TI |
321 | if (snd_BUG_ON(!emu)) |
322 | return -EINVAL; | |
1da177e4 LT |
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 | /* only SEQ_PRIVATE is accepted */ | |
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 | * OSS/AWE driver specific h/w controls | |
341 | */ | |
342 | static void | |
03da312a | 343 | emuspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd, |
1da177e4 LT |
344 | unsigned char *event, int atomic, int hop) |
345 | { | |
346 | int voice; | |
347 | unsigned short p1; | |
348 | short p2; | |
349 | int i; | |
03da312a | 350 | struct snd_midi_channel *chan; |
1da177e4 LT |
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 /* don't do this atomically */ | |
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 | /*snd_emux_mute_channel(emu, chan);*/ | |
378 | break; | |
379 | case _EMUX_OSS_RESET_CHANNEL: | |
380 | /*snd_emux_channel_init(chset, chan);*/ | |
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 | * GUS specific h/w controls | |
433 | */ | |
434 | ||
435 | #include <linux/ultrasound.h> | |
436 | ||
437 | static void | |
03da312a | 438 | gusspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd, |
1da177e4 LT |
439 | unsigned char *event, int atomic, int hop) |
440 | { | |
441 | int voice; | |
442 | unsigned short p1; | |
443 | short p2; | |
444 | int plong; | |
03da312a | 445 | struct snd_midi_channel *chan; |
1da177e4 LT |
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 | /* 0 to 15 --> 0 to 127 */ | |
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 | /* not supported yet */ | |
475 | return; | |
476 | ||
477 | case _GUS_RAMPRANGE: | |
478 | case _GUS_RAMPRATE: | |
479 | case _GUS_RAMPMODE: | |
480 | case _GUS_RAMPON: | |
481 | case _GUS_RAMPOFF: | |
482 | /* volume ramping not supported */ | |
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 | * send an event to midi emulation | |
504 | */ | |
505 | static void | |
03da312a | 506 | fake_event(struct snd_emux *emu, struct snd_emux_port *port, int ch, int param, int val, int atomic, int hop) |
1da177e4 | 507 | { |
03da312a | 508 | struct snd_seq_event ev; |
1da177e4 LT |
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 /* CONFIG_SND_SEQUENCER_OSS */ |