2 * Interface for OSS sequencer emulation
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 <linux/export.h>
29 #include <asm/uaccess.h>
30 #include <sound/core.h>
31 #include "emux_voice.h"
32 #include <sound/asoundef.h>
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,
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);
52 static struct snd_seq_oss_callback oss_callback = {
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,
67 snd_emux_init_seq_oss(struct snd_emux *emu)
69 struct snd_seq_oss_reg *arg;
70 struct snd_seq_device *dev;
72 if (snd_seq_device_new(emu->card, 0, SNDRV_SEQ_DEV_ID_OSS,
73 sizeof(struct snd_seq_oss_reg), &dev) < 0)
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;
85 /* register to OSS synth table */
86 snd_device_register(emu->card, dev);
94 snd_emux_detach_seq_oss(struct snd_emux *emu)
97 snd_device_free(emu->card, emu->oss_synth);
98 emu->oss_synth = NULL;
103 /* use port number as a unique soundfont client number */
104 #define SF_CLIENT_NO(p) ((p) + 0x1000)
107 * open port for OSS sequencer
110 snd_emux_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure)
112 struct snd_emux *emu;
113 struct snd_emux_port *p;
114 struct snd_seq_port_callback callback;
118 if (snd_BUG_ON(!arg || !emu))
121 mutex_lock(&emu->register_mutex);
123 if (!snd_emux_inc_count(emu)) {
124 mutex_unlock(&emu->register_mutex);
128 memset(&callback, 0, sizeof(callback));
129 callback.owner = THIS_MODULE;
130 callback.event_input = snd_emux_event_oss_input;
132 sprintf(tmpname, "%s OSS Port", emu->name);
133 p = snd_emux_create_port(emu, tmpname, 32,
136 snd_printk(KERN_ERR "can't create port\n");
137 snd_emux_dec_count(emu);
138 mutex_unlock(&emu->register_mutex);
142 /* fill the argument data */
143 arg->private_data = p;
144 arg->addr.client = p->chset.client;
145 arg->addr.port = p->chset.port;
148 reset_port_mode(p, arg->seq_mode);
150 snd_emux_reset_port(p);
152 mutex_unlock(&emu->register_mutex);
157 #define DEFAULT_DRUM_FLAGS ((1<<9) | (1<<25))
163 reset_port_mode(struct snd_emux_port *port, int 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;
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;
183 snd_emux_close_seq_oss(struct snd_seq_oss_arg *arg)
185 struct snd_emux *emu;
186 struct snd_emux_port *p;
188 if (snd_BUG_ON(!arg))
190 p = arg->private_data;
195 if (snd_BUG_ON(!emu))
198 mutex_lock(&emu->register_mutex);
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);
204 mutex_unlock(&emu->register_mutex);
213 snd_emux_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format,
214 const char __user *buf, int offs, int count)
216 struct snd_emux *emu;
217 struct snd_emux_port *p;
220 if (snd_BUG_ON(!arg))
222 p = arg->private_data;
227 if (snd_BUG_ON(!emu))
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) {
234 struct soundfont_patch_info patch;
235 if (count < (int)sizeof(patch))
237 if (copy_from_user(&patch, buf, sizeof(patch)))
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));
243 if (emu->ops.load_fx)
244 rc = emu->ops.load_fx(emu, patch.type, patch.optarg, buf, count);
258 snd_emux_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd, unsigned long ioarg)
260 struct snd_emux_port *p;
261 struct snd_emux *emu;
263 if (snd_BUG_ON(!arg))
265 p = arg->private_data;
270 if (snd_BUG_ON(!emu))
274 case SNDCTL_SEQ_RESETSAMPLES:
275 snd_soundfont_remove_samples(emu->sflist);
278 case SNDCTL_SYNTH_MEMAVL:
280 return snd_util_mem_avail(emu->memhdr);
292 snd_emux_reset_seq_oss(struct snd_seq_oss_arg *arg)
294 struct snd_emux_port *p;
296 if (snd_BUG_ON(!arg))
298 p = arg->private_data;
301 snd_emux_reset_port(p);
307 * receive raw events: only SEQ_PRIVATE is accepted.
310 snd_emux_event_oss_input(struct snd_seq_event *ev, int direct, void *private_data,
313 struct snd_emux *emu;
314 struct snd_emux_port *p;
315 unsigned char cmd, *data;
321 if (snd_BUG_ON(!emu))
323 if (ev->type != SNDRV_SEQ_EVENT_OSS)
324 return snd_emux_event_input(ev, direct, private_data, atomic, hop);
326 data = ev->data.raw8.d;
327 /* only SEQ_PRIVATE is accepted */
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);
334 gusspec_control(emu, p, cmd, data, atomic, hop);
340 * OSS/AWE driver specific h/w controls
343 emuspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd,
344 unsigned char *event, int atomic, int hop)
350 struct snd_midi_channel *chan;
353 if (voice < 0 || voice >= port->chset.max_channels)
356 chan = &port->chset.channels[voice];
358 p1 = *(unsigned short *) &event[4];
359 p2 = *(short *) &event[6];
362 #if 0 /* don't do this atomically */
363 case _EMUX_OSS_REMOVE_LAST_SAMPLES:
364 snd_soundfont_remove_unlocked(emu->sflist);
367 case _EMUX_OSS_SEND_EFFECT:
369 snd_emux_send_effect_oss(port, chan, p1, p2);
372 case _EMUX_OSS_TERMINATE_ALL:
373 snd_emux_terminate_all(emu);
376 case _EMUX_OSS_TERMINATE_CHANNEL:
377 /*snd_emux_mute_channel(emu, chan);*/
379 case _EMUX_OSS_RESET_CHANNEL:
380 /*snd_emux_channel_init(chset, chan);*/
383 case _EMUX_OSS_RELEASE_ALL:
384 fake_event(emu, port, voice, MIDI_CTL_ALL_NOTES_OFF, 0, atomic, hop);
386 case _EMUX_OSS_NOTEOFF_ALL:
387 fake_event(emu, port, voice, MIDI_CTL_ALL_SOUNDS_OFF, 0, atomic, hop);
390 case _EMUX_OSS_INITIAL_VOLUME:
392 port->volume_atten = (short)p1;
393 snd_emux_update_port(port, SNDRV_EMUX_UPDATE_VOLUME);
397 case _EMUX_OSS_CHN_PRESSURE:
399 chan->midi_pressure = p1;
400 snd_emux_update_channel(port, chan, SNDRV_EMUX_UPDATE_FMMOD|SNDRV_EMUX_UPDATE_FM2FRQ2);
404 case _EMUX_OSS_CHANNEL_MODE:
405 reset_port_mode(port, p1);
406 snd_emux_reset_port(port);
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;
417 case _EMUX_OSS_MISC_MODE:
418 if (p1 < EMUX_MD_END)
419 port->ctrls[p1] = p2;
421 case _EMUX_OSS_DEBUG_MODE:
425 if (emu->ops.oss_ioctl)
426 emu->ops.oss_ioctl(emu, cmd, p1, p2);
432 * GUS specific h/w controls
435 #include <linux/ultrasound.h>
438 gusspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd,
439 unsigned char *event, int atomic, int hop)
445 struct snd_midi_channel *chan;
447 if (port->port_mode != SNDRV_EMUX_PORT_MODE_OSS_SYNTH)
449 if (cmd == _GUS_NUMVOICES)
452 if (voice < 0 || voice >= port->chset.max_channels)
455 chan = &port->chset.channels[voice];
457 p1 = *(unsigned short *) &event[4];
458 p2 = *(short *) &event[6];
459 plong = *(int*) &event[4];
462 case _GUS_VOICESAMPLE:
463 chan->midi_program = p1;
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);
474 /* not supported yet */
482 /* volume ramping not supported */
485 case _GUS_VOLUME_SCALE:
489 #ifdef SNDRV_EMUX_USE_RAW_EFFECT
490 snd_emux_send_effect(port, chan, EMUX_FX_SAMPLE_START,
491 (short)(plong & 0x7fff),
493 snd_emux_send_effect(port, chan, EMUX_FX_COARSE_SAMPLE_START,
494 (plong >> 15) & 0xffff,
503 * send an event to midi emulation
506 fake_event(struct snd_emux *emu, struct snd_emux_port *port, int ch, int param, int val, int atomic, int hop)
508 struct snd_seq_event ev;
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);
517 #endif /* CONFIG_SND_SEQUENCER_OSS */