Commit | Line | Data |
---|---|---|
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 | ||
28 | #include <asm/uaccess.h> | |
29 | #include <sound/core.h> | |
30 | #include "emux_voice.h" | |
31 | #include <sound/asoundef.h> | |
32 | ||
03da312a TI |
33 | static int snd_emux_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure); |
34 | static int snd_emux_close_seq_oss(struct snd_seq_oss_arg *arg); | |
35 | static int snd_emux_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd, | |
36 | unsigned long ioarg); | |
37 | static int snd_emux_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format, | |
38 | const char __user *buf, int offs, int count); | |
39 | static int snd_emux_reset_seq_oss(struct snd_seq_oss_arg *arg); | |
40 | static int snd_emux_event_oss_input(struct snd_seq_event *ev, int direct, | |
41 | void *private, int atomic, int hop); | |
42 | static void reset_port_mode(struct snd_emux_port *port, int midi_mode); | |
43 | static void emuspec_control(struct snd_emux *emu, struct snd_emux_port *port, | |
44 | int cmd, unsigned char *event, int atomic, int hop); | |
45 | static void gusspec_control(struct snd_emux *emu, struct snd_emux_port *port, | |
46 | int cmd, unsigned char *event, int atomic, int hop); | |
47 | static void fake_event(struct snd_emux *emu, struct snd_emux_port *port, | |
48 | int ch, int param, int val, int atomic, int hop); | |
1da177e4 LT |
49 | |
50 | /* operators */ | |
03da312a | 51 | static struct snd_seq_oss_callback oss_callback = { |
1da177e4 LT |
52 | .owner = THIS_MODULE, |
53 | .open = snd_emux_open_seq_oss, | |
54 | .close = snd_emux_close_seq_oss, | |
55 | .ioctl = snd_emux_ioctl_seq_oss, | |
56 | .load_patch = snd_emux_load_patch_seq_oss, | |
57 | .reset = snd_emux_reset_seq_oss, | |
58 | }; | |
59 | ||
60 | ||
61 | /* | |
62 | * register OSS synth | |
63 | */ | |
64 | ||
65 | void | |
03da312a | 66 | snd_emux_init_seq_oss(struct snd_emux *emu) |
1da177e4 | 67 | { |
03da312a TI |
68 | struct snd_seq_oss_reg *arg; |
69 | struct snd_seq_device *dev; | |
1da177e4 LT |
70 | |
71 | if (snd_seq_device_new(emu->card, 0, SNDRV_SEQ_DEV_ID_OSS, | |
03da312a | 72 | sizeof(struct snd_seq_oss_reg), &dev) < 0) |
1da177e4 LT |
73 | return; |
74 | ||
75 | emu->oss_synth = dev; | |
76 | strcpy(dev->name, emu->name); | |
77 | arg = SNDRV_SEQ_DEVICE_ARGPTR(dev); | |
78 | arg->type = SYNTH_TYPE_SAMPLE; | |
79 | arg->subtype = SAMPLE_TYPE_AWE32; | |
80 | arg->nvoices = emu->max_voices; | |
81 | arg->oper = oss_callback; | |
82 | arg->private_data = emu; | |
83 | ||
84 | /* register to OSS synth table */ | |
85 | snd_device_register(emu->card, dev); | |
86 | } | |
87 | ||
88 | ||
89 | /* | |
90 | * unregister | |
91 | */ | |
92 | void | |
03da312a | 93 | snd_emux_detach_seq_oss(struct snd_emux *emu) |
1da177e4 LT |
94 | { |
95 | if (emu->oss_synth) { | |
96 | snd_device_free(emu->card, emu->oss_synth); | |
97 | emu->oss_synth = NULL; | |
98 | } | |
99 | } | |
100 | ||
101 | ||
102 | /* use port number as a unique soundfont client number */ | |
103 | #define SF_CLIENT_NO(p) ((p) + 0x1000) | |
104 | ||
105 | /* | |
106 | * open port for OSS sequencer | |
107 | */ | |
108 | static int | |
03da312a | 109 | snd_emux_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure) |
1da177e4 | 110 | { |
03da312a TI |
111 | struct snd_emux *emu; |
112 | struct snd_emux_port *p; | |
113 | struct snd_seq_port_callback callback; | |
1da177e4 LT |
114 | char tmpname[64]; |
115 | ||
116 | emu = closure; | |
117 | snd_assert(arg != NULL && emu != NULL, return -ENXIO); | |
118 | ||
ef9f0a42 | 119 | mutex_lock(&emu->register_mutex); |
1da177e4 LT |
120 | |
121 | if (!snd_emux_inc_count(emu)) { | |
ef9f0a42 | 122 | mutex_unlock(&emu->register_mutex); |
1da177e4 LT |
123 | return -EFAULT; |
124 | } | |
125 | ||
126 | memset(&callback, 0, sizeof(callback)); | |
127 | callback.owner = THIS_MODULE; | |
128 | callback.event_input = snd_emux_event_oss_input; | |
129 | ||
130 | sprintf(tmpname, "%s OSS Port", emu->name); | |
131 | p = snd_emux_create_port(emu, tmpname, 32, | |
132 | 1, &callback); | |
133 | if (p == NULL) { | |
134 | snd_printk("can't create port\n"); | |
135 | snd_emux_dec_count(emu); | |
ef9f0a42 | 136 | mutex_unlock(&emu->register_mutex); |
1da177e4 LT |
137 | return -ENOMEM; |
138 | } | |
139 | ||
140 | /* fill the argument data */ | |
141 | arg->private_data = p; | |
142 | arg->addr.client = p->chset.client; | |
143 | arg->addr.port = p->chset.port; | |
144 | p->oss_arg = arg; | |
145 | ||
146 | reset_port_mode(p, arg->seq_mode); | |
147 | ||
148 | snd_emux_reset_port(p); | |
149 | ||
ef9f0a42 | 150 | mutex_unlock(&emu->register_mutex); |
1da177e4 LT |
151 | return 0; |
152 | } | |
153 | ||
154 | ||
155 | #define DEFAULT_DRUM_FLAGS ((1<<9) | (1<<25)) | |
156 | ||
157 | /* | |
158 | * reset port mode | |
159 | */ | |
160 | static void | |
03da312a | 161 | reset_port_mode(struct snd_emux_port *port, int midi_mode) |
1da177e4 LT |
162 | { |
163 | if (midi_mode) { | |
164 | port->port_mode = SNDRV_EMUX_PORT_MODE_OSS_MIDI; | |
165 | port->drum_flags = DEFAULT_DRUM_FLAGS; | |
166 | port->volume_atten = 0; | |
167 | port->oss_arg->event_passing = SNDRV_SEQ_OSS_PROCESS_KEYPRESS; | |
168 | } else { | |
169 | port->port_mode = SNDRV_EMUX_PORT_MODE_OSS_SYNTH; | |
170 | port->drum_flags = 0; | |
171 | port->volume_atten = 32; | |
172 | port->oss_arg->event_passing = SNDRV_SEQ_OSS_PROCESS_EVENTS; | |
173 | } | |
174 | } | |
175 | ||
176 | ||
177 | /* | |
178 | * close port | |
179 | */ | |
180 | static int | |
03da312a | 181 | snd_emux_close_seq_oss(struct snd_seq_oss_arg *arg) |
1da177e4 | 182 | { |
03da312a TI |
183 | struct snd_emux *emu; |
184 | struct snd_emux_port *p; | |
1da177e4 LT |
185 | |
186 | snd_assert(arg != NULL, return -ENXIO); | |
187 | p = arg->private_data; | |
188 | snd_assert(p != NULL, return -ENXIO); | |
189 | ||
190 | emu = p->emu; | |
191 | snd_assert(emu != NULL, return -ENXIO); | |
192 | ||
ef9f0a42 | 193 | mutex_lock(&emu->register_mutex); |
1da177e4 LT |
194 | snd_emux_sounds_off_all(p); |
195 | snd_soundfont_close_check(emu->sflist, SF_CLIENT_NO(p->chset.port)); | |
196 | snd_seq_event_port_detach(p->chset.client, p->chset.port); | |
197 | snd_emux_dec_count(emu); | |
198 | ||
ef9f0a42 | 199 | mutex_unlock(&emu->register_mutex); |
1da177e4 LT |
200 | return 0; |
201 | } | |
202 | ||
203 | ||
204 | /* | |
205 | * load patch | |
206 | */ | |
207 | static int | |
03da312a | 208 | snd_emux_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format, |
1da177e4 LT |
209 | const char __user *buf, int offs, int count) |
210 | { | |
03da312a TI |
211 | struct snd_emux *emu; |
212 | struct snd_emux_port *p; | |
1da177e4 LT |
213 | int rc; |
214 | ||
215 | snd_assert(arg != NULL, return -ENXIO); | |
216 | p = arg->private_data; | |
217 | snd_assert(p != NULL, return -ENXIO); | |
218 | ||
219 | emu = p->emu; | |
220 | snd_assert(emu != NULL, return -ENXIO); | |
221 | ||
222 | if (format == GUS_PATCH) | |
223 | rc = snd_soundfont_load_guspatch(emu->sflist, buf, count, | |
224 | SF_CLIENT_NO(p->chset.port)); | |
225 | else if (format == SNDRV_OSS_SOUNDFONT_PATCH) { | |
03da312a | 226 | struct soundfont_patch_info patch; |
1da177e4 LT |
227 | if (count < (int)sizeof(patch)) |
228 | rc = -EINVAL; | |
229 | if (copy_from_user(&patch, buf, sizeof(patch))) | |
230 | rc = -EFAULT; | |
231 | if (patch.type >= SNDRV_SFNT_LOAD_INFO && | |
232 | patch.type <= SNDRV_SFNT_PROBE_DATA) | |
233 | rc = snd_soundfont_load(emu->sflist, buf, count, SF_CLIENT_NO(p->chset.port)); | |
234 | else { | |
235 | if (emu->ops.load_fx) | |
236 | rc = emu->ops.load_fx(emu, patch.type, patch.optarg, buf, count); | |
237 | else | |
238 | rc = -EINVAL; | |
239 | } | |
240 | } else | |
241 | rc = 0; | |
242 | return rc; | |
243 | } | |
244 | ||
245 | ||
246 | /* | |
247 | * ioctl | |
248 | */ | |
249 | static int | |
03da312a | 250 | snd_emux_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd, unsigned long ioarg) |
1da177e4 | 251 | { |
03da312a TI |
252 | struct snd_emux_port *p; |
253 | struct snd_emux *emu; | |
1da177e4 LT |
254 | |
255 | snd_assert(arg != NULL, return -ENXIO); | |
256 | p = arg->private_data; | |
257 | snd_assert(p != NULL, return -ENXIO); | |
258 | ||
259 | emu = p->emu; | |
260 | snd_assert(emu != NULL, return -ENXIO); | |
261 | ||
262 | switch (cmd) { | |
263 | case SNDCTL_SEQ_RESETSAMPLES: | |
264 | snd_soundfont_remove_samples(emu->sflist); | |
265 | return 0; | |
266 | ||
267 | case SNDCTL_SYNTH_MEMAVL: | |
268 | if (emu->memhdr) | |
269 | return snd_util_mem_avail(emu->memhdr); | |
270 | return 0; | |
271 | } | |
272 | ||
273 | return 0; | |
274 | } | |
275 | ||
276 | ||
277 | /* | |
278 | * reset device | |
279 | */ | |
280 | static int | |
03da312a | 281 | snd_emux_reset_seq_oss(struct snd_seq_oss_arg *arg) |
1da177e4 | 282 | { |
03da312a | 283 | struct snd_emux_port *p; |
1da177e4 LT |
284 | |
285 | snd_assert(arg != NULL, return -ENXIO); | |
286 | p = arg->private_data; | |
287 | snd_assert(p != NULL, return -ENXIO); | |
288 | snd_emux_reset_port(p); | |
289 | return 0; | |
290 | } | |
291 | ||
292 | ||
293 | /* | |
294 | * receive raw events: only SEQ_PRIVATE is accepted. | |
295 | */ | |
296 | static int | |
03da312a | 297 | snd_emux_event_oss_input(struct snd_seq_event *ev, int direct, void *private_data, |
1da177e4 LT |
298 | int atomic, int hop) |
299 | { | |
03da312a TI |
300 | struct snd_emux *emu; |
301 | struct snd_emux_port *p; | |
1da177e4 LT |
302 | unsigned char cmd, *data; |
303 | ||
304 | p = private_data; | |
305 | snd_assert(p != NULL, return -EINVAL); | |
306 | emu = p->emu; | |
307 | snd_assert(emu != NULL, return -EINVAL); | |
308 | if (ev->type != SNDRV_SEQ_EVENT_OSS) | |
309 | return snd_emux_event_input(ev, direct, private_data, atomic, hop); | |
310 | ||
311 | data = ev->data.raw8.d; | |
312 | /* only SEQ_PRIVATE is accepted */ | |
313 | if (data[0] != 0xfe) | |
314 | return 0; | |
315 | cmd = data[2] & _EMUX_OSS_MODE_VALUE_MASK; | |
316 | if (data[2] & _EMUX_OSS_MODE_FLAG) | |
317 | emuspec_control(emu, p, cmd, data, atomic, hop); | |
318 | else | |
319 | gusspec_control(emu, p, cmd, data, atomic, hop); | |
320 | return 0; | |
321 | } | |
322 | ||
323 | ||
324 | /* | |
325 | * OSS/AWE driver specific h/w controls | |
326 | */ | |
327 | static void | |
03da312a | 328 | emuspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd, |
1da177e4 LT |
329 | unsigned char *event, int atomic, int hop) |
330 | { | |
331 | int voice; | |
332 | unsigned short p1; | |
333 | short p2; | |
334 | int i; | |
03da312a | 335 | struct snd_midi_channel *chan; |
1da177e4 LT |
336 | |
337 | voice = event[3]; | |
338 | if (voice < 0 || voice >= port->chset.max_channels) | |
339 | chan = NULL; | |
340 | else | |
341 | chan = &port->chset.channels[voice]; | |
342 | ||
343 | p1 = *(unsigned short *) &event[4]; | |
344 | p2 = *(short *) &event[6]; | |
345 | ||
346 | switch (cmd) { | |
347 | #if 0 /* don't do this atomically */ | |
348 | case _EMUX_OSS_REMOVE_LAST_SAMPLES: | |
349 | snd_soundfont_remove_unlocked(emu->sflist); | |
350 | break; | |
351 | #endif | |
352 | case _EMUX_OSS_SEND_EFFECT: | |
353 | if (chan) | |
354 | snd_emux_send_effect_oss(port, chan, p1, p2); | |
355 | break; | |
356 | ||
357 | case _EMUX_OSS_TERMINATE_ALL: | |
358 | snd_emux_terminate_all(emu); | |
359 | break; | |
360 | ||
361 | case _EMUX_OSS_TERMINATE_CHANNEL: | |
362 | /*snd_emux_mute_channel(emu, chan);*/ | |
363 | break; | |
364 | case _EMUX_OSS_RESET_CHANNEL: | |
365 | /*snd_emux_channel_init(chset, chan);*/ | |
366 | break; | |
367 | ||
368 | case _EMUX_OSS_RELEASE_ALL: | |
369 | fake_event(emu, port, voice, MIDI_CTL_ALL_NOTES_OFF, 0, atomic, hop); | |
370 | break; | |
371 | case _EMUX_OSS_NOTEOFF_ALL: | |
372 | fake_event(emu, port, voice, MIDI_CTL_ALL_SOUNDS_OFF, 0, atomic, hop); | |
373 | break; | |
374 | ||
375 | case _EMUX_OSS_INITIAL_VOLUME: | |
376 | if (p2) { | |
377 | port->volume_atten = (short)p1; | |
378 | snd_emux_update_port(port, SNDRV_EMUX_UPDATE_VOLUME); | |
379 | } | |
380 | break; | |
381 | ||
382 | case _EMUX_OSS_CHN_PRESSURE: | |
383 | if (chan) { | |
384 | chan->midi_pressure = p1; | |
385 | snd_emux_update_channel(port, chan, SNDRV_EMUX_UPDATE_FMMOD|SNDRV_EMUX_UPDATE_FM2FRQ2); | |
386 | } | |
387 | break; | |
388 | ||
389 | case _EMUX_OSS_CHANNEL_MODE: | |
390 | reset_port_mode(port, p1); | |
391 | snd_emux_reset_port(port); | |
392 | break; | |
393 | ||
394 | case _EMUX_OSS_DRUM_CHANNELS: | |
395 | port->drum_flags = *(unsigned int*)&event[4]; | |
396 | for (i = 0; i < port->chset.max_channels; i++) { | |
397 | chan = &port->chset.channels[i]; | |
398 | chan->drum_channel = ((port->drum_flags >> i) & 1) ? 1 : 0; | |
399 | } | |
400 | break; | |
401 | ||
402 | case _EMUX_OSS_MISC_MODE: | |
403 | if (p1 < EMUX_MD_END) | |
404 | port->ctrls[p1] = p2; | |
405 | break; | |
406 | case _EMUX_OSS_DEBUG_MODE: | |
407 | break; | |
408 | ||
409 | default: | |
410 | if (emu->ops.oss_ioctl) | |
411 | emu->ops.oss_ioctl(emu, cmd, p1, p2); | |
412 | break; | |
413 | } | |
414 | } | |
415 | ||
416 | /* | |
417 | * GUS specific h/w controls | |
418 | */ | |
419 | ||
420 | #include <linux/ultrasound.h> | |
421 | ||
422 | static void | |
03da312a | 423 | gusspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd, |
1da177e4 LT |
424 | unsigned char *event, int atomic, int hop) |
425 | { | |
426 | int voice; | |
427 | unsigned short p1; | |
428 | short p2; | |
429 | int plong; | |
03da312a | 430 | struct snd_midi_channel *chan; |
1da177e4 LT |
431 | |
432 | if (port->port_mode != SNDRV_EMUX_PORT_MODE_OSS_SYNTH) | |
433 | return; | |
434 | if (cmd == _GUS_NUMVOICES) | |
435 | return; | |
436 | voice = event[3]; | |
437 | if (voice < 0 || voice >= port->chset.max_channels) | |
438 | return; | |
439 | ||
440 | chan = &port->chset.channels[voice]; | |
441 | ||
442 | p1 = *(unsigned short *) &event[4]; | |
443 | p2 = *(short *) &event[6]; | |
444 | plong = *(int*) &event[4]; | |
445 | ||
446 | switch (cmd) { | |
447 | case _GUS_VOICESAMPLE: | |
448 | chan->midi_program = p1; | |
449 | return; | |
450 | ||
451 | case _GUS_VOICEBALA: | |
452 | /* 0 to 15 --> 0 to 127 */ | |
453 | chan->control[MIDI_CTL_MSB_PAN] = (int)p1 << 3; | |
454 | snd_emux_update_channel(port, chan, SNDRV_EMUX_UPDATE_PAN); | |
455 | return; | |
456 | ||
457 | case _GUS_VOICEVOL: | |
458 | case _GUS_VOICEVOL2: | |
459 | /* not supported yet */ | |
460 | return; | |
461 | ||
462 | case _GUS_RAMPRANGE: | |
463 | case _GUS_RAMPRATE: | |
464 | case _GUS_RAMPMODE: | |
465 | case _GUS_RAMPON: | |
466 | case _GUS_RAMPOFF: | |
467 | /* volume ramping not supported */ | |
468 | return; | |
469 | ||
470 | case _GUS_VOLUME_SCALE: | |
471 | return; | |
472 | ||
473 | case _GUS_VOICE_POS: | |
474 | #ifdef SNDRV_EMUX_USE_RAW_EFFECT | |
475 | snd_emux_send_effect(port, chan, EMUX_FX_SAMPLE_START, | |
476 | (short)(plong & 0x7fff), | |
477 | EMUX_FX_FLAG_SET); | |
478 | snd_emux_send_effect(port, chan, EMUX_FX_COARSE_SAMPLE_START, | |
479 | (plong >> 15) & 0xffff, | |
480 | EMUX_FX_FLAG_SET); | |
481 | #endif | |
482 | return; | |
483 | } | |
484 | } | |
485 | ||
486 | ||
487 | /* | |
488 | * send an event to midi emulation | |
489 | */ | |
490 | static void | |
03da312a | 491 | fake_event(struct snd_emux *emu, struct snd_emux_port *port, int ch, int param, int val, int atomic, int hop) |
1da177e4 | 492 | { |
03da312a | 493 | struct snd_seq_event ev; |
1da177e4 LT |
494 | memset(&ev, 0, sizeof(ev)); |
495 | ev.type = SNDRV_SEQ_EVENT_CONTROLLER; | |
496 | ev.data.control.channel = ch; | |
497 | ev.data.control.param = param; | |
498 | ev.data.control.value = val; | |
499 | snd_emux_event_input(&ev, 0, port, atomic, hop); | |
500 | } | |
501 | ||
502 | #endif /* CONFIG_SND_SEQUENCER_OSS */ |