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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> |
976412fb | 29 | #include <linux/uaccess.h> |
1da177e4 LT |
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 | 71 | |
225db576 TI |
72 | /* using device#1 here for avoiding conflicts with OPL3 */ |
73 | if (snd_seq_device_new(emu->card, 1, SNDRV_SEQ_DEV_ID_OSS, | |
03da312a | 74 | sizeof(struct snd_seq_oss_reg), &dev) < 0) |
1da177e4 LT |
75 | return; |
76 | ||
77 | emu->oss_synth = dev; | |
78 | strcpy(dev->name, emu->name); | |
79 | arg = SNDRV_SEQ_DEVICE_ARGPTR(dev); | |
80 | arg->type = SYNTH_TYPE_SAMPLE; | |
81 | arg->subtype = SAMPLE_TYPE_AWE32; | |
82 | arg->nvoices = emu->max_voices; | |
83 | arg->oper = oss_callback; | |
84 | arg->private_data = emu; | |
85 | ||
86 | /* register to OSS synth table */ | |
87 | snd_device_register(emu->card, dev); | |
88 | } | |
89 | ||
90 | ||
91 | /* | |
92 | * unregister | |
93 | */ | |
94 | void | |
03da312a | 95 | snd_emux_detach_seq_oss(struct snd_emux *emu) |
1da177e4 LT |
96 | { |
97 | if (emu->oss_synth) { | |
98 | snd_device_free(emu->card, emu->oss_synth); | |
99 | emu->oss_synth = NULL; | |
100 | } | |
101 | } | |
102 | ||
103 | ||
104 | /* use port number as a unique soundfont client number */ | |
105 | #define SF_CLIENT_NO(p) ((p) + 0x1000) | |
106 | ||
107 | /* | |
108 | * open port for OSS sequencer | |
109 | */ | |
110 | static int | |
03da312a | 111 | snd_emux_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure) |
1da177e4 | 112 | { |
03da312a TI |
113 | struct snd_emux *emu; |
114 | struct snd_emux_port *p; | |
115 | struct snd_seq_port_callback callback; | |
1da177e4 LT |
116 | char tmpname[64]; |
117 | ||
118 | emu = closure; | |
5e246b85 TI |
119 | if (snd_BUG_ON(!arg || !emu)) |
120 | return -ENXIO; | |
1da177e4 | 121 | |
1c94e65c | 122 | if (!snd_emux_inc_count(emu)) |
1da177e4 | 123 | return -EFAULT; |
1da177e4 LT |
124 | |
125 | memset(&callback, 0, sizeof(callback)); | |
126 | callback.owner = THIS_MODULE; | |
127 | callback.event_input = snd_emux_event_oss_input; | |
128 | ||
129 | sprintf(tmpname, "%s OSS Port", emu->name); | |
130 | p = snd_emux_create_port(emu, tmpname, 32, | |
131 | 1, &callback); | |
132 | if (p == NULL) { | |
42b0158b | 133 | snd_printk(KERN_ERR "can't create port\n"); |
1da177e4 | 134 | snd_emux_dec_count(emu); |
1da177e4 LT |
135 | return -ENOMEM; |
136 | } | |
137 | ||
138 | /* fill the argument data */ | |
139 | arg->private_data = p; | |
140 | arg->addr.client = p->chset.client; | |
141 | arg->addr.port = p->chset.port; | |
142 | p->oss_arg = arg; | |
143 | ||
144 | reset_port_mode(p, arg->seq_mode); | |
145 | ||
146 | snd_emux_reset_port(p); | |
1da177e4 LT |
147 | return 0; |
148 | } | |
149 | ||
150 | ||
151 | #define DEFAULT_DRUM_FLAGS ((1<<9) | (1<<25)) | |
152 | ||
153 | /* | |
154 | * reset port mode | |
155 | */ | |
156 | static void | |
03da312a | 157 | reset_port_mode(struct snd_emux_port *port, int midi_mode) |
1da177e4 LT |
158 | { |
159 | if (midi_mode) { | |
160 | port->port_mode = SNDRV_EMUX_PORT_MODE_OSS_MIDI; | |
161 | port->drum_flags = DEFAULT_DRUM_FLAGS; | |
162 | port->volume_atten = 0; | |
163 | port->oss_arg->event_passing = SNDRV_SEQ_OSS_PROCESS_KEYPRESS; | |
164 | } else { | |
165 | port->port_mode = SNDRV_EMUX_PORT_MODE_OSS_SYNTH; | |
166 | port->drum_flags = 0; | |
167 | port->volume_atten = 32; | |
168 | port->oss_arg->event_passing = SNDRV_SEQ_OSS_PROCESS_EVENTS; | |
169 | } | |
170 | } | |
171 | ||
172 | ||
173 | /* | |
174 | * close port | |
175 | */ | |
176 | static int | |
03da312a | 177 | snd_emux_close_seq_oss(struct snd_seq_oss_arg *arg) |
1da177e4 | 178 | { |
03da312a TI |
179 | struct snd_emux *emu; |
180 | struct snd_emux_port *p; | |
1da177e4 | 181 | |
5e246b85 TI |
182 | if (snd_BUG_ON(!arg)) |
183 | return -ENXIO; | |
1da177e4 | 184 | p = arg->private_data; |
5e246b85 TI |
185 | if (snd_BUG_ON(!p)) |
186 | return -ENXIO; | |
1da177e4 LT |
187 | |
188 | emu = p->emu; | |
5e246b85 TI |
189 | if (snd_BUG_ON(!emu)) |
190 | return -ENXIO; | |
1da177e4 | 191 | |
1da177e4 LT |
192 | snd_emux_sounds_off_all(p); |
193 | snd_soundfont_close_check(emu->sflist, SF_CLIENT_NO(p->chset.port)); | |
194 | snd_seq_event_port_detach(p->chset.client, p->chset.port); | |
195 | snd_emux_dec_count(emu); | |
196 | ||
1da177e4 LT |
197 | return 0; |
198 | } | |
199 | ||
200 | ||
201 | /* | |
202 | * load patch | |
203 | */ | |
204 | static int | |
03da312a | 205 | snd_emux_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format, |
1da177e4 LT |
206 | const char __user *buf, int offs, int count) |
207 | { | |
03da312a TI |
208 | struct snd_emux *emu; |
209 | struct snd_emux_port *p; | |
1da177e4 LT |
210 | int rc; |
211 | ||
5e246b85 TI |
212 | if (snd_BUG_ON(!arg)) |
213 | return -ENXIO; | |
1da177e4 | 214 | p = arg->private_data; |
5e246b85 TI |
215 | if (snd_BUG_ON(!p)) |
216 | return -ENXIO; | |
1da177e4 LT |
217 | |
218 | emu = p->emu; | |
5e246b85 TI |
219 | if (snd_BUG_ON(!emu)) |
220 | return -ENXIO; | |
1da177e4 LT |
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 | 227 | if (count < (int)sizeof(patch)) |
5885615e | 228 | return -EINVAL; |
1da177e4 | 229 | if (copy_from_user(&patch, buf, sizeof(patch))) |
5885615e | 230 | return -EFAULT; |
1da177e4 LT |
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 | 254 | |
5e246b85 TI |
255 | if (snd_BUG_ON(!arg)) |
256 | return -ENXIO; | |
1da177e4 | 257 | p = arg->private_data; |
5e246b85 TI |
258 | if (snd_BUG_ON(!p)) |
259 | return -ENXIO; | |
1da177e4 LT |
260 | |
261 | emu = p->emu; | |
5e246b85 TI |
262 | if (snd_BUG_ON(!emu)) |
263 | return -ENXIO; | |
1da177e4 LT |
264 | |
265 | switch (cmd) { | |
266 | case SNDCTL_SEQ_RESETSAMPLES: | |
267 | snd_soundfont_remove_samples(emu->sflist); | |
268 | return 0; | |
269 | ||
270 | case SNDCTL_SYNTH_MEMAVL: | |
271 | if (emu->memhdr) | |
272 | return snd_util_mem_avail(emu->memhdr); | |
273 | return 0; | |
274 | } | |
275 | ||
276 | return 0; | |
277 | } | |
278 | ||
279 | ||
280 | /* | |
281 | * reset device | |
282 | */ | |
283 | static int | |
03da312a | 284 | snd_emux_reset_seq_oss(struct snd_seq_oss_arg *arg) |
1da177e4 | 285 | { |
03da312a | 286 | struct snd_emux_port *p; |
1da177e4 | 287 | |
5e246b85 TI |
288 | if (snd_BUG_ON(!arg)) |
289 | return -ENXIO; | |
1da177e4 | 290 | p = arg->private_data; |
5e246b85 TI |
291 | if (snd_BUG_ON(!p)) |
292 | return -ENXIO; | |
1da177e4 LT |
293 | snd_emux_reset_port(p); |
294 | return 0; | |
295 | } | |
296 | ||
297 | ||
298 | /* | |
299 | * receive raw events: only SEQ_PRIVATE is accepted. | |
300 | */ | |
301 | static int | |
03da312a | 302 | snd_emux_event_oss_input(struct snd_seq_event *ev, int direct, void *private_data, |
1da177e4 LT |
303 | int atomic, int hop) |
304 | { | |
03da312a TI |
305 | struct snd_emux *emu; |
306 | struct snd_emux_port *p; | |
1da177e4 LT |
307 | unsigned char cmd, *data; |
308 | ||
309 | p = private_data; | |
5e246b85 TI |
310 | if (snd_BUG_ON(!p)) |
311 | return -EINVAL; | |
1da177e4 | 312 | emu = p->emu; |
5e246b85 TI |
313 | if (snd_BUG_ON(!emu)) |
314 | return -EINVAL; | |
1da177e4 LT |
315 | if (ev->type != SNDRV_SEQ_EVENT_OSS) |
316 | return snd_emux_event_input(ev, direct, private_data, atomic, hop); | |
317 | ||
318 | data = ev->data.raw8.d; | |
319 | /* only SEQ_PRIVATE is accepted */ | |
320 | if (data[0] != 0xfe) | |
321 | return 0; | |
322 | cmd = data[2] & _EMUX_OSS_MODE_VALUE_MASK; | |
323 | if (data[2] & _EMUX_OSS_MODE_FLAG) | |
324 | emuspec_control(emu, p, cmd, data, atomic, hop); | |
325 | else | |
326 | gusspec_control(emu, p, cmd, data, atomic, hop); | |
327 | return 0; | |
328 | } | |
329 | ||
330 | ||
331 | /* | |
332 | * OSS/AWE driver specific h/w controls | |
333 | */ | |
334 | static void | |
03da312a | 335 | emuspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd, |
1da177e4 LT |
336 | unsigned char *event, int atomic, int hop) |
337 | { | |
338 | int voice; | |
339 | unsigned short p1; | |
340 | short p2; | |
341 | int i; | |
03da312a | 342 | struct snd_midi_channel *chan; |
1da177e4 LT |
343 | |
344 | voice = event[3]; | |
345 | if (voice < 0 || voice >= port->chset.max_channels) | |
346 | chan = NULL; | |
347 | else | |
348 | chan = &port->chset.channels[voice]; | |
349 | ||
350 | p1 = *(unsigned short *) &event[4]; | |
351 | p2 = *(short *) &event[6]; | |
352 | ||
353 | switch (cmd) { | |
354 | #if 0 /* don't do this atomically */ | |
355 | case _EMUX_OSS_REMOVE_LAST_SAMPLES: | |
356 | snd_soundfont_remove_unlocked(emu->sflist); | |
357 | break; | |
358 | #endif | |
359 | case _EMUX_OSS_SEND_EFFECT: | |
360 | if (chan) | |
361 | snd_emux_send_effect_oss(port, chan, p1, p2); | |
362 | break; | |
363 | ||
364 | case _EMUX_OSS_TERMINATE_ALL: | |
365 | snd_emux_terminate_all(emu); | |
366 | break; | |
367 | ||
368 | case _EMUX_OSS_TERMINATE_CHANNEL: | |
369 | /*snd_emux_mute_channel(emu, chan);*/ | |
370 | break; | |
371 | case _EMUX_OSS_RESET_CHANNEL: | |
372 | /*snd_emux_channel_init(chset, chan);*/ | |
373 | break; | |
374 | ||
375 | case _EMUX_OSS_RELEASE_ALL: | |
376 | fake_event(emu, port, voice, MIDI_CTL_ALL_NOTES_OFF, 0, atomic, hop); | |
377 | break; | |
378 | case _EMUX_OSS_NOTEOFF_ALL: | |
379 | fake_event(emu, port, voice, MIDI_CTL_ALL_SOUNDS_OFF, 0, atomic, hop); | |
380 | break; | |
381 | ||
382 | case _EMUX_OSS_INITIAL_VOLUME: | |
383 | if (p2) { | |
384 | port->volume_atten = (short)p1; | |
385 | snd_emux_update_port(port, SNDRV_EMUX_UPDATE_VOLUME); | |
386 | } | |
387 | break; | |
388 | ||
389 | case _EMUX_OSS_CHN_PRESSURE: | |
390 | if (chan) { | |
391 | chan->midi_pressure = p1; | |
392 | snd_emux_update_channel(port, chan, SNDRV_EMUX_UPDATE_FMMOD|SNDRV_EMUX_UPDATE_FM2FRQ2); | |
393 | } | |
394 | break; | |
395 | ||
396 | case _EMUX_OSS_CHANNEL_MODE: | |
397 | reset_port_mode(port, p1); | |
398 | snd_emux_reset_port(port); | |
399 | break; | |
400 | ||
401 | case _EMUX_OSS_DRUM_CHANNELS: | |
402 | port->drum_flags = *(unsigned int*)&event[4]; | |
403 | for (i = 0; i < port->chset.max_channels; i++) { | |
404 | chan = &port->chset.channels[i]; | |
405 | chan->drum_channel = ((port->drum_flags >> i) & 1) ? 1 : 0; | |
406 | } | |
407 | break; | |
408 | ||
409 | case _EMUX_OSS_MISC_MODE: | |
410 | if (p1 < EMUX_MD_END) | |
411 | port->ctrls[p1] = p2; | |
412 | break; | |
413 | case _EMUX_OSS_DEBUG_MODE: | |
414 | break; | |
415 | ||
416 | default: | |
417 | if (emu->ops.oss_ioctl) | |
418 | emu->ops.oss_ioctl(emu, cmd, p1, p2); | |
419 | break; | |
420 | } | |
421 | } | |
422 | ||
423 | /* | |
424 | * GUS specific h/w controls | |
425 | */ | |
426 | ||
427 | #include <linux/ultrasound.h> | |
428 | ||
429 | static void | |
03da312a | 430 | gusspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd, |
1da177e4 LT |
431 | unsigned char *event, int atomic, int hop) |
432 | { | |
433 | int voice; | |
434 | unsigned short p1; | |
435 | short p2; | |
436 | int plong; | |
03da312a | 437 | struct snd_midi_channel *chan; |
1da177e4 LT |
438 | |
439 | if (port->port_mode != SNDRV_EMUX_PORT_MODE_OSS_SYNTH) | |
440 | return; | |
441 | if (cmd == _GUS_NUMVOICES) | |
442 | return; | |
443 | voice = event[3]; | |
444 | if (voice < 0 || voice >= port->chset.max_channels) | |
445 | return; | |
446 | ||
447 | chan = &port->chset.channels[voice]; | |
448 | ||
449 | p1 = *(unsigned short *) &event[4]; | |
450 | p2 = *(short *) &event[6]; | |
451 | plong = *(int*) &event[4]; | |
452 | ||
453 | switch (cmd) { | |
454 | case _GUS_VOICESAMPLE: | |
455 | chan->midi_program = p1; | |
456 | return; | |
457 | ||
458 | case _GUS_VOICEBALA: | |
459 | /* 0 to 15 --> 0 to 127 */ | |
460 | chan->control[MIDI_CTL_MSB_PAN] = (int)p1 << 3; | |
461 | snd_emux_update_channel(port, chan, SNDRV_EMUX_UPDATE_PAN); | |
462 | return; | |
463 | ||
464 | case _GUS_VOICEVOL: | |
465 | case _GUS_VOICEVOL2: | |
466 | /* not supported yet */ | |
467 | return; | |
468 | ||
469 | case _GUS_RAMPRANGE: | |
470 | case _GUS_RAMPRATE: | |
471 | case _GUS_RAMPMODE: | |
472 | case _GUS_RAMPON: | |
473 | case _GUS_RAMPOFF: | |
474 | /* volume ramping not supported */ | |
475 | return; | |
476 | ||
477 | case _GUS_VOLUME_SCALE: | |
478 | return; | |
479 | ||
480 | case _GUS_VOICE_POS: | |
481 | #ifdef SNDRV_EMUX_USE_RAW_EFFECT | |
482 | snd_emux_send_effect(port, chan, EMUX_FX_SAMPLE_START, | |
483 | (short)(plong & 0x7fff), | |
484 | EMUX_FX_FLAG_SET); | |
485 | snd_emux_send_effect(port, chan, EMUX_FX_COARSE_SAMPLE_START, | |
486 | (plong >> 15) & 0xffff, | |
487 | EMUX_FX_FLAG_SET); | |
488 | #endif | |
489 | return; | |
490 | } | |
491 | } | |
492 | ||
493 | ||
494 | /* | |
495 | * send an event to midi emulation | |
496 | */ | |
497 | static void | |
03da312a | 498 | fake_event(struct snd_emux *emu, struct snd_emux_port *port, int ch, int param, int val, int atomic, int hop) |
1da177e4 | 499 | { |
03da312a | 500 | struct snd_seq_event ev; |
1da177e4 LT |
501 | memset(&ev, 0, sizeof(ev)); |
502 | ev.type = SNDRV_SEQ_EVENT_CONTROLLER; | |
503 | ev.data.control.channel = ch; | |
504 | ev.data.control.param = param; | |
505 | ev.data.control.value = val; | |
506 | snd_emux_event_input(&ev, 0, port, atomic, hop); | |
507 | } | |
508 | ||
509 | #endif /* CONFIG_SND_SEQUENCER_OSS */ |