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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Interface for OSS sequencer emulation
4 *
5 * Copyright (C) 1999 Takashi Iwai <tiwai@suse.de>
6 *
7 * Changes
8 * 19990227 Steve Ratcliffe Made separate file and merged in latest
9 * midi emulation.
10 */
11
12
13#include <linux/export.h>
14#include <linux/uaccess.h>
15#include <sound/core.h>
16#include "emux_voice.h"
17#include <sound/asoundef.h>
18
19static int snd_emux_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure);
20static int snd_emux_close_seq_oss(struct snd_seq_oss_arg *arg);
21static int snd_emux_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd,
22 unsigned long ioarg);
23static int snd_emux_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format,
24 const char __user *buf, int offs, int count);
25static int snd_emux_reset_seq_oss(struct snd_seq_oss_arg *arg);
26static int snd_emux_event_oss_input(struct snd_seq_event *ev, int direct,
27 void *private, int atomic, int hop);
28static void reset_port_mode(struct snd_emux_port *port, int midi_mode);
29static void emuspec_control(struct snd_emux *emu, struct snd_emux_port *port,
30 int cmd, unsigned char *event, int atomic, int hop);
31static void gusspec_control(struct snd_emux *emu, struct snd_emux_port *port,
32 int cmd, unsigned char *event, int atomic, int hop);
33static void fake_event(struct snd_emux *emu, struct snd_emux_port *port,
34 int ch, int param, int val, int atomic, int hop);
35
36/* operators */
37static const struct snd_seq_oss_callback oss_callback = {
38 .owner = THIS_MODULE,
39 .open = snd_emux_open_seq_oss,
40 .close = snd_emux_close_seq_oss,
41 .ioctl = snd_emux_ioctl_seq_oss,
42 .load_patch = snd_emux_load_patch_seq_oss,
43 .reset = snd_emux_reset_seq_oss,
44};
45
46
47/*
48 * register OSS synth
49 */
50
51void
52snd_emux_init_seq_oss(struct snd_emux *emu)
53{
54 struct snd_seq_oss_reg *arg;
55 struct snd_seq_device *dev;
56
57 /* using device#1 here for avoiding conflicts with OPL3 */
58 if (snd_seq_device_new(emu->card, 1, SNDRV_SEQ_DEV_ID_OSS,
59 sizeof(struct snd_seq_oss_reg), &dev) < 0)
60 return;
61
62 emu->oss_synth = dev;
63 strcpy(dev->name, emu->name);
64 arg = SNDRV_SEQ_DEVICE_ARGPTR(dev);
65 arg->type = SYNTH_TYPE_SAMPLE;
66 arg->subtype = SAMPLE_TYPE_AWE32;
67 arg->nvoices = emu->max_voices;
68 arg->oper = oss_callback;
69 arg->private_data = emu;
70
71 /* register to OSS synth table */
72 snd_device_register(emu->card, dev);
73}
74
75
76/*
77 * unregister
78 */
79void
80snd_emux_detach_seq_oss(struct snd_emux *emu)
81{
82 if (emu->oss_synth) {
83 snd_device_free(emu->card, emu->oss_synth);
84 emu->oss_synth = NULL;
85 }
86}
87
88
89/* use port number as a unique soundfont client number */
90#define SF_CLIENT_NO(p) ((p) + 0x1000)
91
92/*
93 * open port for OSS sequencer
94 */
95static int
96snd_emux_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure)
97{
98 struct snd_emux *emu;
99 struct snd_emux_port *p;
100 struct snd_seq_port_callback callback;
101 char tmpname[64];
102
103 emu = closure;
104 if (snd_BUG_ON(!arg || !emu))
105 return -ENXIO;
106
107 if (!snd_emux_inc_count(emu))
108 return -EFAULT;
109
110 memset(&callback, 0, sizeof(callback));
111 callback.owner = THIS_MODULE;
112 callback.event_input = snd_emux_event_oss_input;
113
114 sprintf(tmpname, "%s OSS Port", emu->name);
115 p = snd_emux_create_port(emu, tmpname, 32,
116 1, &callback);
117 if (p == NULL) {
118 dev_err(emu->card->dev, "can't create port\n");
119 snd_emux_dec_count(emu);
120 return -ENOMEM;
121 }
122
123 /* fill the argument data */
124 arg->private_data = p;
125 arg->addr.client = p->chset.client;
126 arg->addr.port = p->chset.port;
127 p->oss_arg = arg;
128
129 reset_port_mode(p, arg->seq_mode);
130
131 snd_emux_reset_port(p);
132 return 0;
133}
134
135
136#define DEFAULT_DRUM_FLAGS ((1<<9) | (1<<25))
137
138/*
139 * reset port mode
140 */
141static void
142reset_port_mode(struct snd_emux_port *port, int midi_mode)
143{
144 if (midi_mode) {
145 port->port_mode = SNDRV_EMUX_PORT_MODE_OSS_MIDI;
146 port->drum_flags = DEFAULT_DRUM_FLAGS;
147 port->volume_atten = 0;
148 port->oss_arg->event_passing = SNDRV_SEQ_OSS_PROCESS_KEYPRESS;
149 } else {
150 port->port_mode = SNDRV_EMUX_PORT_MODE_OSS_SYNTH;
151 port->drum_flags = 0;
152 port->volume_atten = 32;
153 port->oss_arg->event_passing = SNDRV_SEQ_OSS_PROCESS_EVENTS;
154 }
155}
156
157
158/*
159 * close port
160 */
161static int
162snd_emux_close_seq_oss(struct snd_seq_oss_arg *arg)
163{
164 struct snd_emux *emu;
165 struct snd_emux_port *p;
166
167 if (snd_BUG_ON(!arg))
168 return -ENXIO;
169 p = arg->private_data;
170 if (snd_BUG_ON(!p))
171 return -ENXIO;
172
173 emu = p->emu;
174 if (snd_BUG_ON(!emu))
175 return -ENXIO;
176
177 snd_emux_sounds_off_all(p);
178 snd_soundfont_close_check(emu->sflist, SF_CLIENT_NO(p->chset.port));
179 snd_seq_event_port_detach(p->chset.client, p->chset.port);
180 snd_emux_dec_count(emu);
181
182 return 0;
183}
184
185
186/*
187 * load patch
188 */
189static int
190snd_emux_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format,
191 const char __user *buf, int offs, int count)
192{
193 struct snd_emux *emu;
194 struct snd_emux_port *p;
195 int rc;
196
197 if (snd_BUG_ON(!arg))
198 return -ENXIO;
199 p = arg->private_data;
200 if (snd_BUG_ON(!p))
201 return -ENXIO;
202
203 emu = p->emu;
204 if (snd_BUG_ON(!emu))
205 return -ENXIO;
206
207 if (format == GUS_PATCH)
208 rc = snd_soundfont_load_guspatch(emu->card, emu->sflist, buf, count);
209 else if (format == SNDRV_OSS_SOUNDFONT_PATCH) {
210 struct soundfont_patch_info patch;
211 if (count < (int)sizeof(patch))
212 return -EINVAL;
213 if (copy_from_user(&patch, buf, sizeof(patch)))
214 return -EFAULT;
215 if (patch.type >= SNDRV_SFNT_LOAD_INFO &&
216 patch.type <= SNDRV_SFNT_PROBE_DATA)
217 rc = snd_soundfont_load(emu->card, emu->sflist, buf,
218 count,
219 SF_CLIENT_NO(p->chset.port));
220 else {
221 if (emu->ops.load_fx)
222 rc = emu->ops.load_fx(emu, patch.type,
223 patch.optarg, buf, count);
224 else
225 rc = -EINVAL;
226 }
227 } else
228 rc = 0;
229 return rc;
230}
231
232
233/*
234 * ioctl
235 */
236static int
237snd_emux_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd, unsigned long ioarg)
238{
239 struct snd_emux_port *p;
240 struct snd_emux *emu;
241
242 if (snd_BUG_ON(!arg))
243 return -ENXIO;
244 p = arg->private_data;
245 if (snd_BUG_ON(!p))
246 return -ENXIO;
247
248 emu = p->emu;
249 if (snd_BUG_ON(!emu))
250 return -ENXIO;
251
252 switch (cmd) {
253 case SNDCTL_SEQ_RESETSAMPLES:
254 snd_soundfont_remove_samples(emu->sflist);
255 return 0;
256
257 case SNDCTL_SYNTH_MEMAVL:
258 if (emu->memhdr)
259 return snd_util_mem_avail(emu->memhdr);
260 return 0;
261 }
262
263 return 0;
264}
265
266
267/*
268 * reset device
269 */
270static int
271snd_emux_reset_seq_oss(struct snd_seq_oss_arg *arg)
272{
273 struct snd_emux_port *p;
274
275 if (snd_BUG_ON(!arg))
276 return -ENXIO;
277 p = arg->private_data;
278 if (snd_BUG_ON(!p))
279 return -ENXIO;
280 snd_emux_reset_port(p);
281 return 0;
282}
283
284
285/*
286 * receive raw events: only SEQ_PRIVATE is accepted.
287 */
288static int
289snd_emux_event_oss_input(struct snd_seq_event *ev, int direct, void *private_data,
290 int atomic, int hop)
291{
292 struct snd_emux *emu;
293 struct snd_emux_port *p;
294 unsigned char cmd, *data;
295
296 p = private_data;
297 if (snd_BUG_ON(!p))
298 return -EINVAL;
299 emu = p->emu;
300 if (snd_BUG_ON(!emu))
301 return -EINVAL;
302 if (ev->type != SNDRV_SEQ_EVENT_OSS)
303 return snd_emux_event_input(ev, direct, private_data, atomic, hop);
304
305 data = ev->data.raw8.d;
306 /* only SEQ_PRIVATE is accepted */
307 if (data[0] != 0xfe)
308 return 0;
309 cmd = data[2] & _EMUX_OSS_MODE_VALUE_MASK;
310 if (data[2] & _EMUX_OSS_MODE_FLAG)
311 emuspec_control(emu, p, cmd, data, atomic, hop);
312 else
313 gusspec_control(emu, p, cmd, data, atomic, hop);
314 return 0;
315}
316
317
318/*
319 * OSS/AWE driver specific h/w controls
320 */
321static void
322emuspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd,
323 unsigned char *event, int atomic, int hop)
324{
325 int voice;
326 unsigned short p1;
327 short p2;
328 int i;
329 struct snd_midi_channel *chan;
330
331 voice = event[3];
332 if (voice < 0 || voice >= port->chset.max_channels)
333 chan = NULL;
334 else
335 chan = &port->chset.channels[voice];
336
337 p1 = *(unsigned short *) &event[4];
338 p2 = *(short *) &event[6];
339
340 switch (cmd) {
341#if 0 /* don't do this atomically */
342 case _EMUX_OSS_REMOVE_LAST_SAMPLES:
343 snd_soundfont_remove_unlocked(emu->sflist);
344 break;
345#endif
346 case _EMUX_OSS_SEND_EFFECT:
347 if (chan)
348 snd_emux_send_effect_oss(port, chan, p1, p2);
349 break;
350
351 case _EMUX_OSS_TERMINATE_ALL:
352 snd_emux_terminate_all(emu);
353 break;
354
355 case _EMUX_OSS_TERMINATE_CHANNEL:
356 /*snd_emux_mute_channel(emu, chan);*/
357 break;
358 case _EMUX_OSS_RESET_CHANNEL:
359 /*snd_emux_channel_init(chset, chan);*/
360 break;
361
362 case _EMUX_OSS_RELEASE_ALL:
363 fake_event(emu, port, voice, MIDI_CTL_ALL_NOTES_OFF, 0, atomic, hop);
364 break;
365 case _EMUX_OSS_NOTEOFF_ALL:
366 fake_event(emu, port, voice, MIDI_CTL_ALL_SOUNDS_OFF, 0, atomic, hop);
367 break;
368
369 case _EMUX_OSS_INITIAL_VOLUME:
370 if (p2) {
371 port->volume_atten = (short)p1;
372 snd_emux_update_port(port, SNDRV_EMUX_UPDATE_VOLUME);
373 }
374 break;
375
376 case _EMUX_OSS_CHN_PRESSURE:
377 if (chan) {
378 chan->midi_pressure = p1;
379 snd_emux_update_channel(port, chan, SNDRV_EMUX_UPDATE_FMMOD|SNDRV_EMUX_UPDATE_FM2FRQ2);
380 }
381 break;
382
383 case _EMUX_OSS_CHANNEL_MODE:
384 reset_port_mode(port, p1);
385 snd_emux_reset_port(port);
386 break;
387
388 case _EMUX_OSS_DRUM_CHANNELS:
389 port->drum_flags = *(unsigned int*)&event[4];
390 for (i = 0; i < port->chset.max_channels; i++) {
391 chan = &port->chset.channels[i];
392 chan->drum_channel = ((port->drum_flags >> i) & 1) ? 1 : 0;
393 }
394 break;
395
396 case _EMUX_OSS_MISC_MODE:
397 if (p1 < EMUX_MD_END)
398 port->ctrls[p1] = p2;
399 break;
400 case _EMUX_OSS_DEBUG_MODE:
401 break;
402
403 default:
404 if (emu->ops.oss_ioctl)
405 emu->ops.oss_ioctl(emu, cmd, p1, p2);
406 break;
407 }
408}
409
410/*
411 * GUS specific h/w controls
412 */
413
414#include <linux/ultrasound.h>
415
416static void
417gusspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd,
418 unsigned char *event, int atomic, int hop)
419{
420 int voice;
421 unsigned short p1;
422 int plong;
423 struct snd_midi_channel *chan;
424
425 if (port->port_mode != SNDRV_EMUX_PORT_MODE_OSS_SYNTH)
426 return;
427 if (cmd == _GUS_NUMVOICES)
428 return;
429 voice = event[3];
430 if (voice < 0 || voice >= port->chset.max_channels)
431 return;
432
433 chan = &port->chset.channels[voice];
434
435 p1 = *(unsigned short *) &event[4];
436 plong = *(int*) &event[4];
437
438 switch (cmd) {
439 case _GUS_VOICESAMPLE:
440 chan->midi_program = p1;
441 return;
442
443 case _GUS_VOICEBALA:
444 /* 0 to 15 --> 0 to 127 */
445 chan->control[MIDI_CTL_MSB_PAN] = (int)p1 << 3;
446 snd_emux_update_channel(port, chan, SNDRV_EMUX_UPDATE_PAN);
447 return;
448
449 case _GUS_VOICEVOL:
450 case _GUS_VOICEVOL2:
451 /* not supported yet */
452 return;
453
454 case _GUS_RAMPRANGE:
455 case _GUS_RAMPRATE:
456 case _GUS_RAMPMODE:
457 case _GUS_RAMPON:
458 case _GUS_RAMPOFF:
459 /* volume ramping not supported */
460 return;
461
462 case _GUS_VOLUME_SCALE:
463 return;
464
465 case _GUS_VOICE_POS:
466#ifdef SNDRV_EMUX_USE_RAW_EFFECT
467 snd_emux_send_effect(port, chan, EMUX_FX_SAMPLE_START,
468 (short)(plong & 0x7fff),
469 EMUX_FX_FLAG_SET);
470 snd_emux_send_effect(port, chan, EMUX_FX_COARSE_SAMPLE_START,
471 (plong >> 15) & 0xffff,
472 EMUX_FX_FLAG_SET);
473#endif
474 return;
475 }
476}
477
478
479/*
480 * send an event to midi emulation
481 */
482static void
483fake_event(struct snd_emux *emu, struct snd_emux_port *port, int ch, int param, int val, int atomic, int hop)
484{
485 struct snd_seq_event ev;
486 memset(&ev, 0, sizeof(ev));
487 ev.type = SNDRV_SEQ_EVENT_CONTROLLER;
488 ev.data.control.channel = ch;
489 ev.data.control.param = param;
490 ev.data.control.value = val;
491 snd_emux_event_input(&ev, 0, port, atomic, hop);
492}
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
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
33static int snd_emux_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure);
34static int snd_emux_close_seq_oss(struct snd_seq_oss_arg *arg);
35static int snd_emux_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd,
36 unsigned long ioarg);
37static int snd_emux_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format,
38 const char __user *buf, int offs, int count);
39static int snd_emux_reset_seq_oss(struct snd_seq_oss_arg *arg);
40static int snd_emux_event_oss_input(struct snd_seq_event *ev, int direct,
41 void *private, int atomic, int hop);
42static void reset_port_mode(struct snd_emux_port *port, int midi_mode);
43static void emuspec_control(struct snd_emux *emu, struct snd_emux_port *port,
44 int cmd, unsigned char *event, int atomic, int hop);
45static void gusspec_control(struct snd_emux *emu, struct snd_emux_port *port,
46 int cmd, unsigned char *event, int atomic, int hop);
47static void fake_event(struct snd_emux *emu, struct snd_emux_port *port,
48 int ch, int param, int val, int atomic, int hop);
49
50/* operators */
51static struct snd_seq_oss_callback oss_callback = {
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
65void
66snd_emux_init_seq_oss(struct snd_emux *emu)
67{
68 struct snd_seq_oss_reg *arg;
69 struct snd_seq_device *dev;
70
71 if (snd_seq_device_new(emu->card, 0, SNDRV_SEQ_DEV_ID_OSS,
72 sizeof(struct snd_seq_oss_reg), &dev) < 0)
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 */
92void
93snd_emux_detach_seq_oss(struct snd_emux *emu)
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 */
108static int
109snd_emux_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure)
110{
111 struct snd_emux *emu;
112 struct snd_emux_port *p;
113 struct snd_seq_port_callback callback;
114 char tmpname[64];
115
116 emu = closure;
117 if (snd_BUG_ON(!arg || !emu))
118 return -ENXIO;
119
120 mutex_lock(&emu->register_mutex);
121
122 if (!snd_emux_inc_count(emu)) {
123 mutex_unlock(&emu->register_mutex);
124 return -EFAULT;
125 }
126
127 memset(&callback, 0, sizeof(callback));
128 callback.owner = THIS_MODULE;
129 callback.event_input = snd_emux_event_oss_input;
130
131 sprintf(tmpname, "%s OSS Port", emu->name);
132 p = snd_emux_create_port(emu, tmpname, 32,
133 1, &callback);
134 if (p == NULL) {
135 snd_printk(KERN_ERR "can't create port\n");
136 snd_emux_dec_count(emu);
137 mutex_unlock(&emu->register_mutex);
138 return -ENOMEM;
139 }
140
141 /* fill the argument data */
142 arg->private_data = p;
143 arg->addr.client = p->chset.client;
144 arg->addr.port = p->chset.port;
145 p->oss_arg = arg;
146
147 reset_port_mode(p, arg->seq_mode);
148
149 snd_emux_reset_port(p);
150
151 mutex_unlock(&emu->register_mutex);
152 return 0;
153}
154
155
156#define DEFAULT_DRUM_FLAGS ((1<<9) | (1<<25))
157
158/*
159 * reset port mode
160 */
161static void
162reset_port_mode(struct snd_emux_port *port, int midi_mode)
163{
164 if (midi_mode) {
165 port->port_mode = SNDRV_EMUX_PORT_MODE_OSS_MIDI;
166 port->drum_flags = DEFAULT_DRUM_FLAGS;
167 port->volume_atten = 0;
168 port->oss_arg->event_passing = SNDRV_SEQ_OSS_PROCESS_KEYPRESS;
169 } else {
170 port->port_mode = SNDRV_EMUX_PORT_MODE_OSS_SYNTH;
171 port->drum_flags = 0;
172 port->volume_atten = 32;
173 port->oss_arg->event_passing = SNDRV_SEQ_OSS_PROCESS_EVENTS;
174 }
175}
176
177
178/*
179 * close port
180 */
181static int
182snd_emux_close_seq_oss(struct snd_seq_oss_arg *arg)
183{
184 struct snd_emux *emu;
185 struct snd_emux_port *p;
186
187 if (snd_BUG_ON(!arg))
188 return -ENXIO;
189 p = arg->private_data;
190 if (snd_BUG_ON(!p))
191 return -ENXIO;
192
193 emu = p->emu;
194 if (snd_BUG_ON(!emu))
195 return -ENXIO;
196
197 mutex_lock(&emu->register_mutex);
198 snd_emux_sounds_off_all(p);
199 snd_soundfont_close_check(emu->sflist, SF_CLIENT_NO(p->chset.port));
200 snd_seq_event_port_detach(p->chset.client, p->chset.port);
201 snd_emux_dec_count(emu);
202
203 mutex_unlock(&emu->register_mutex);
204 return 0;
205}
206
207
208/*
209 * load patch
210 */
211static int
212snd_emux_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format,
213 const char __user *buf, int offs, int count)
214{
215 struct snd_emux *emu;
216 struct snd_emux_port *p;
217 int rc;
218
219 if (snd_BUG_ON(!arg))
220 return -ENXIO;
221 p = arg->private_data;
222 if (snd_BUG_ON(!p))
223 return -ENXIO;
224
225 emu = p->emu;
226 if (snd_BUG_ON(!emu))
227 return -ENXIO;
228
229 if (format == GUS_PATCH)
230 rc = snd_soundfont_load_guspatch(emu->sflist, buf, count,
231 SF_CLIENT_NO(p->chset.port));
232 else if (format == SNDRV_OSS_SOUNDFONT_PATCH) {
233 struct soundfont_patch_info patch;
234 if (count < (int)sizeof(patch))
235 rc = -EINVAL;
236 if (copy_from_user(&patch, buf, sizeof(patch)))
237 rc = -EFAULT;
238 if (patch.type >= SNDRV_SFNT_LOAD_INFO &&
239 patch.type <= SNDRV_SFNT_PROBE_DATA)
240 rc = snd_soundfont_load(emu->sflist, buf, count, SF_CLIENT_NO(p->chset.port));
241 else {
242 if (emu->ops.load_fx)
243 rc = emu->ops.load_fx(emu, patch.type, patch.optarg, buf, count);
244 else
245 rc = -EINVAL;
246 }
247 } else
248 rc = 0;
249 return rc;
250}
251
252
253/*
254 * ioctl
255 */
256static int
257snd_emux_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd, unsigned long ioarg)
258{
259 struct snd_emux_port *p;
260 struct snd_emux *emu;
261
262 if (snd_BUG_ON(!arg))
263 return -ENXIO;
264 p = arg->private_data;
265 if (snd_BUG_ON(!p))
266 return -ENXIO;
267
268 emu = p->emu;
269 if (snd_BUG_ON(!emu))
270 return -ENXIO;
271
272 switch (cmd) {
273 case SNDCTL_SEQ_RESETSAMPLES:
274 snd_soundfont_remove_samples(emu->sflist);
275 return 0;
276
277 case SNDCTL_SYNTH_MEMAVL:
278 if (emu->memhdr)
279 return snd_util_mem_avail(emu->memhdr);
280 return 0;
281 }
282
283 return 0;
284}
285
286
287/*
288 * reset device
289 */
290static int
291snd_emux_reset_seq_oss(struct snd_seq_oss_arg *arg)
292{
293 struct snd_emux_port *p;
294
295 if (snd_BUG_ON(!arg))
296 return -ENXIO;
297 p = arg->private_data;
298 if (snd_BUG_ON(!p))
299 return -ENXIO;
300 snd_emux_reset_port(p);
301 return 0;
302}
303
304
305/*
306 * receive raw events: only SEQ_PRIVATE is accepted.
307 */
308static int
309snd_emux_event_oss_input(struct snd_seq_event *ev, int direct, void *private_data,
310 int atomic, int hop)
311{
312 struct snd_emux *emu;
313 struct snd_emux_port *p;
314 unsigned char cmd, *data;
315
316 p = private_data;
317 if (snd_BUG_ON(!p))
318 return -EINVAL;
319 emu = p->emu;
320 if (snd_BUG_ON(!emu))
321 return -EINVAL;
322 if (ev->type != SNDRV_SEQ_EVENT_OSS)
323 return snd_emux_event_input(ev, direct, private_data, atomic, hop);
324
325 data = ev->data.raw8.d;
326 /* only SEQ_PRIVATE is accepted */
327 if (data[0] != 0xfe)
328 return 0;
329 cmd = data[2] & _EMUX_OSS_MODE_VALUE_MASK;
330 if (data[2] & _EMUX_OSS_MODE_FLAG)
331 emuspec_control(emu, p, cmd, data, atomic, hop);
332 else
333 gusspec_control(emu, p, cmd, data, atomic, hop);
334 return 0;
335}
336
337
338/*
339 * OSS/AWE driver specific h/w controls
340 */
341static void
342emuspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd,
343 unsigned char *event, int atomic, int hop)
344{
345 int voice;
346 unsigned short p1;
347 short p2;
348 int i;
349 struct snd_midi_channel *chan;
350
351 voice = event[3];
352 if (voice < 0 || voice >= port->chset.max_channels)
353 chan = NULL;
354 else
355 chan = &port->chset.channels[voice];
356
357 p1 = *(unsigned short *) &event[4];
358 p2 = *(short *) &event[6];
359
360 switch (cmd) {
361#if 0 /* don't do this atomically */
362 case _EMUX_OSS_REMOVE_LAST_SAMPLES:
363 snd_soundfont_remove_unlocked(emu->sflist);
364 break;
365#endif
366 case _EMUX_OSS_SEND_EFFECT:
367 if (chan)
368 snd_emux_send_effect_oss(port, chan, p1, p2);
369 break;
370
371 case _EMUX_OSS_TERMINATE_ALL:
372 snd_emux_terminate_all(emu);
373 break;
374
375 case _EMUX_OSS_TERMINATE_CHANNEL:
376 /*snd_emux_mute_channel(emu, chan);*/
377 break;
378 case _EMUX_OSS_RESET_CHANNEL:
379 /*snd_emux_channel_init(chset, chan);*/
380 break;
381
382 case _EMUX_OSS_RELEASE_ALL:
383 fake_event(emu, port, voice, MIDI_CTL_ALL_NOTES_OFF, 0, atomic, hop);
384 break;
385 case _EMUX_OSS_NOTEOFF_ALL:
386 fake_event(emu, port, voice, MIDI_CTL_ALL_SOUNDS_OFF, 0, atomic, hop);
387 break;
388
389 case _EMUX_OSS_INITIAL_VOLUME:
390 if (p2) {
391 port->volume_atten = (short)p1;
392 snd_emux_update_port(port, SNDRV_EMUX_UPDATE_VOLUME);
393 }
394 break;
395
396 case _EMUX_OSS_CHN_PRESSURE:
397 if (chan) {
398 chan->midi_pressure = p1;
399 snd_emux_update_channel(port, chan, SNDRV_EMUX_UPDATE_FMMOD|SNDRV_EMUX_UPDATE_FM2FRQ2);
400 }
401 break;
402
403 case _EMUX_OSS_CHANNEL_MODE:
404 reset_port_mode(port, p1);
405 snd_emux_reset_port(port);
406 break;
407
408 case _EMUX_OSS_DRUM_CHANNELS:
409 port->drum_flags = *(unsigned int*)&event[4];
410 for (i = 0; i < port->chset.max_channels; i++) {
411 chan = &port->chset.channels[i];
412 chan->drum_channel = ((port->drum_flags >> i) & 1) ? 1 : 0;
413 }
414 break;
415
416 case _EMUX_OSS_MISC_MODE:
417 if (p1 < EMUX_MD_END)
418 port->ctrls[p1] = p2;
419 break;
420 case _EMUX_OSS_DEBUG_MODE:
421 break;
422
423 default:
424 if (emu->ops.oss_ioctl)
425 emu->ops.oss_ioctl(emu, cmd, p1, p2);
426 break;
427 }
428}
429
430/*
431 * GUS specific h/w controls
432 */
433
434#include <linux/ultrasound.h>
435
436static void
437gusspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd,
438 unsigned char *event, int atomic, int hop)
439{
440 int voice;
441 unsigned short p1;
442 short p2;
443 int plong;
444 struct snd_midi_channel *chan;
445
446 if (port->port_mode != SNDRV_EMUX_PORT_MODE_OSS_SYNTH)
447 return;
448 if (cmd == _GUS_NUMVOICES)
449 return;
450 voice = event[3];
451 if (voice < 0 || voice >= port->chset.max_channels)
452 return;
453
454 chan = &port->chset.channels[voice];
455
456 p1 = *(unsigned short *) &event[4];
457 p2 = *(short *) &event[6];
458 plong = *(int*) &event[4];
459
460 switch (cmd) {
461 case _GUS_VOICESAMPLE:
462 chan->midi_program = p1;
463 return;
464
465 case _GUS_VOICEBALA:
466 /* 0 to 15 --> 0 to 127 */
467 chan->control[MIDI_CTL_MSB_PAN] = (int)p1 << 3;
468 snd_emux_update_channel(port, chan, SNDRV_EMUX_UPDATE_PAN);
469 return;
470
471 case _GUS_VOICEVOL:
472 case _GUS_VOICEVOL2:
473 /* not supported yet */
474 return;
475
476 case _GUS_RAMPRANGE:
477 case _GUS_RAMPRATE:
478 case _GUS_RAMPMODE:
479 case _GUS_RAMPON:
480 case _GUS_RAMPOFF:
481 /* volume ramping not supported */
482 return;
483
484 case _GUS_VOLUME_SCALE:
485 return;
486
487 case _GUS_VOICE_POS:
488#ifdef SNDRV_EMUX_USE_RAW_EFFECT
489 snd_emux_send_effect(port, chan, EMUX_FX_SAMPLE_START,
490 (short)(plong & 0x7fff),
491 EMUX_FX_FLAG_SET);
492 snd_emux_send_effect(port, chan, EMUX_FX_COARSE_SAMPLE_START,
493 (plong >> 15) & 0xffff,
494 EMUX_FX_FLAG_SET);
495#endif
496 return;
497 }
498}
499
500
501/*
502 * send an event to midi emulation
503 */
504static void
505fake_event(struct snd_emux *emu, struct snd_emux_port *port, int ch, int param, int val, int atomic, int hop)
506{
507 struct snd_seq_event ev;
508 memset(&ev, 0, sizeof(ev));
509 ev.type = SNDRV_SEQ_EVENT_CONTROLLER;
510 ev.data.control.channel = ch;
511 ev.data.control.param = param;
512 ev.data.control.value = val;
513 snd_emux_event_input(&ev, 0, port, atomic, hop);
514}
515
516#endif /* CONFIG_SND_SEQUENCER_OSS */