2 * Interface for OSS sequencer emulation
4 * Copyright (C) 1999 Takashi Iwai <tiwai@suse.de>
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.
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.
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
21 * 19990227 Steve Ratcliffe Made separate file and merged in latest
26 #ifdef CONFIG_SND_SEQUENCER_OSS
28 #include <asm/uaccess.h>
29 #include <sound/core.h>
30 #include "emux_voice.h"
31 #include <sound/asoundef.h>
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,
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);
51 static struct snd_seq_oss_callback oss_callback = {
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,
66 snd_emux_init_seq_oss(struct snd_emux *emu)
68 struct snd_seq_oss_reg *arg;
69 struct snd_seq_device *dev;
71 if (snd_seq_device_new(emu->card, 0, SNDRV_SEQ_DEV_ID_OSS,
72 sizeof(struct snd_seq_oss_reg), &dev) < 0)
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;
84 /* register to OSS synth table */
85 snd_device_register(emu->card, dev);
93 snd_emux_detach_seq_oss(struct snd_emux *emu)
96 snd_device_free(emu->card, emu->oss_synth);
97 emu->oss_synth = NULL;
102 /* use port number as a unique soundfont client number */
103 #define SF_CLIENT_NO(p) ((p) + 0x1000)
106 * open port for OSS sequencer
109 snd_emux_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure)
111 struct snd_emux *emu;
112 struct snd_emux_port *p;
113 struct snd_seq_port_callback callback;
117 if (snd_BUG_ON(!arg || !emu))
120 mutex_lock(&emu->register_mutex);
122 if (!snd_emux_inc_count(emu)) {
123 mutex_unlock(&emu->register_mutex);
127 memset(&callback, 0, sizeof(callback));
128 callback.owner = THIS_MODULE;
129 callback.event_input = snd_emux_event_oss_input;
131 sprintf(tmpname, "%s OSS Port", emu->name);
132 p = snd_emux_create_port(emu, tmpname, 32,
135 snd_printk("can't create port\n");
136 snd_emux_dec_count(emu);
137 mutex_unlock(&emu->register_mutex);
141 /* fill the argument data */
142 arg->private_data = p;
143 arg->addr.client = p->chset.client;
144 arg->addr.port = p->chset.port;
147 reset_port_mode(p, arg->seq_mode);
149 snd_emux_reset_port(p);
151 mutex_unlock(&emu->register_mutex);
156 #define DEFAULT_DRUM_FLAGS ((1<<9) | (1<<25))
162 reset_port_mode(struct snd_emux_port *port, int 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;
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;
182 snd_emux_close_seq_oss(struct snd_seq_oss_arg *arg)
184 struct snd_emux *emu;
185 struct snd_emux_port *p;
187 if (snd_BUG_ON(!arg))
189 p = arg->private_data;
194 if (snd_BUG_ON(!emu))
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);
203 mutex_unlock(&emu->register_mutex);
212 snd_emux_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format,
213 const char __user *buf, int offs, int count)
215 struct snd_emux *emu;
216 struct snd_emux_port *p;
219 if (snd_BUG_ON(!arg))
221 p = arg->private_data;
226 if (snd_BUG_ON(!emu))
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))
236 if (copy_from_user(&patch, buf, sizeof(patch)))
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));
242 if (emu->ops.load_fx)
243 rc = emu->ops.load_fx(emu, patch.type, patch.optarg, buf, count);
257 snd_emux_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd, unsigned long ioarg)
259 struct snd_emux_port *p;
260 struct snd_emux *emu;
262 if (snd_BUG_ON(!arg))
264 p = arg->private_data;
269 if (snd_BUG_ON(!emu))
273 case SNDCTL_SEQ_RESETSAMPLES:
274 snd_soundfont_remove_samples(emu->sflist);
277 case SNDCTL_SYNTH_MEMAVL:
279 return snd_util_mem_avail(emu->memhdr);
291 snd_emux_reset_seq_oss(struct snd_seq_oss_arg *arg)
293 struct snd_emux_port *p;
295 if (snd_BUG_ON(!arg))
297 p = arg->private_data;
300 snd_emux_reset_port(p);
306 * receive raw events: only SEQ_PRIVATE is accepted.
309 snd_emux_event_oss_input(struct snd_seq_event *ev, int direct, void *private_data,
312 struct snd_emux *emu;
313 struct snd_emux_port *p;
314 unsigned char cmd, *data;
320 if (snd_BUG_ON(!emu))
322 if (ev->type != SNDRV_SEQ_EVENT_OSS)
323 return snd_emux_event_input(ev, direct, private_data, atomic, hop);
325 data = ev->data.raw8.d;
326 /* only SEQ_PRIVATE is accepted */
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);
333 gusspec_control(emu, p, cmd, data, atomic, hop);
339 * OSS/AWE driver specific h/w controls
342 emuspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd,
343 unsigned char *event, int atomic, int hop)
349 struct snd_midi_channel *chan;
352 if (voice < 0 || voice >= port->chset.max_channels)
355 chan = &port->chset.channels[voice];
357 p1 = *(unsigned short *) &event[4];
358 p2 = *(short *) &event[6];
361 #if 0 /* don't do this atomically */
362 case _EMUX_OSS_REMOVE_LAST_SAMPLES:
363 snd_soundfont_remove_unlocked(emu->sflist);
366 case _EMUX_OSS_SEND_EFFECT:
368 snd_emux_send_effect_oss(port, chan, p1, p2);
371 case _EMUX_OSS_TERMINATE_ALL:
372 snd_emux_terminate_all(emu);
375 case _EMUX_OSS_TERMINATE_CHANNEL:
376 /*snd_emux_mute_channel(emu, chan);*/
378 case _EMUX_OSS_RESET_CHANNEL:
379 /*snd_emux_channel_init(chset, chan);*/
382 case _EMUX_OSS_RELEASE_ALL:
383 fake_event(emu, port, voice, MIDI_CTL_ALL_NOTES_OFF, 0, atomic, hop);
385 case _EMUX_OSS_NOTEOFF_ALL:
386 fake_event(emu, port, voice, MIDI_CTL_ALL_SOUNDS_OFF, 0, atomic, hop);
389 case _EMUX_OSS_INITIAL_VOLUME:
391 port->volume_atten = (short)p1;
392 snd_emux_update_port(port, SNDRV_EMUX_UPDATE_VOLUME);
396 case _EMUX_OSS_CHN_PRESSURE:
398 chan->midi_pressure = p1;
399 snd_emux_update_channel(port, chan, SNDRV_EMUX_UPDATE_FMMOD|SNDRV_EMUX_UPDATE_FM2FRQ2);
403 case _EMUX_OSS_CHANNEL_MODE:
404 reset_port_mode(port, p1);
405 snd_emux_reset_port(port);
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;
416 case _EMUX_OSS_MISC_MODE:
417 if (p1 < EMUX_MD_END)
418 port->ctrls[p1] = p2;
420 case _EMUX_OSS_DEBUG_MODE:
424 if (emu->ops.oss_ioctl)
425 emu->ops.oss_ioctl(emu, cmd, p1, p2);
431 * GUS specific h/w controls
434 #include <linux/ultrasound.h>
437 gusspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd,
438 unsigned char *event, int atomic, int hop)
444 struct snd_midi_channel *chan;
446 if (port->port_mode != SNDRV_EMUX_PORT_MODE_OSS_SYNTH)
448 if (cmd == _GUS_NUMVOICES)
451 if (voice < 0 || voice >= port->chset.max_channels)
454 chan = &port->chset.channels[voice];
456 p1 = *(unsigned short *) &event[4];
457 p2 = *(short *) &event[6];
458 plong = *(int*) &event[4];
461 case _GUS_VOICESAMPLE:
462 chan->midi_program = p1;
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);
473 /* not supported yet */
481 /* volume ramping not supported */
484 case _GUS_VOLUME_SCALE:
488 #ifdef SNDRV_EMUX_USE_RAW_EFFECT
489 snd_emux_send_effect(port, chan, EMUX_FX_SAMPLE_START,
490 (short)(plong & 0x7fff),
492 snd_emux_send_effect(port, chan, EMUX_FX_COARSE_SAMPLE_START,
493 (plong >> 15) & 0xffff,
502 * send an event to midi emulation
505 fake_event(struct snd_emux *emu, struct snd_emux_port *port, int ch, int param, int val, int atomic, int hop)
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);
516 #endif /* CONFIG_SND_SEQUENCER_OSS */