Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * OSS compatible sequencer driver |
| 3 | * |
| 4 | * synth device handlers |
| 5 | * |
| 6 | * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | */ |
| 22 | |
| 23 | #include "seq_oss_synth.h" |
| 24 | #include "seq_oss_midi.h" |
| 25 | #include "../seq_lock.h" |
| 26 | #include <linux/init.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame^] | 27 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | |
| 29 | /* |
| 30 | * constants |
| 31 | */ |
| 32 | #define SNDRV_SEQ_OSS_MAX_SYNTH_NAME 30 |
| 33 | #define MAX_SYSEX_BUFLEN 128 |
| 34 | |
| 35 | |
| 36 | /* |
| 37 | * definition of synth info records |
| 38 | */ |
| 39 | |
| 40 | /* sysex buffer */ |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 41 | struct seq_oss_synth_sysex { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | int len; |
| 43 | int skip; |
| 44 | unsigned char buf[MAX_SYSEX_BUFLEN]; |
| 45 | }; |
| 46 | |
| 47 | /* synth info */ |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 48 | struct seq_oss_synth { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | int seq_device; |
| 50 | |
| 51 | /* for synth_info */ |
| 52 | int synth_type; |
| 53 | int synth_subtype; |
| 54 | int nr_voices; |
| 55 | |
| 56 | char name[SNDRV_SEQ_OSS_MAX_SYNTH_NAME]; |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 57 | struct snd_seq_oss_callback oper; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | |
| 59 | int opened; |
| 60 | |
| 61 | void *private_data; |
| 62 | snd_use_lock_t use_lock; |
| 63 | }; |
| 64 | |
| 65 | |
| 66 | /* |
| 67 | * device table |
| 68 | */ |
| 69 | static int max_synth_devs; |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 70 | static struct seq_oss_synth *synth_devs[SNDRV_SEQ_OSS_MAX_SYNTH_DEVS]; |
| 71 | static struct seq_oss_synth midi_synth_dev = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | -1, /* seq_device */ |
| 73 | SYNTH_TYPE_MIDI, /* synth_type */ |
| 74 | 0, /* synth_subtype */ |
| 75 | 16, /* nr_voices */ |
| 76 | "MIDI", /* name */ |
| 77 | }; |
| 78 | |
| 79 | static DEFINE_SPINLOCK(register_lock); |
| 80 | |
| 81 | /* |
| 82 | * prototypes |
| 83 | */ |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 84 | static struct seq_oss_synth *get_synthdev(struct seq_oss_devinfo *dp, int dev); |
| 85 | static void reset_channels(struct seq_oss_synthinfo *info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | |
| 87 | /* |
| 88 | * global initialization |
| 89 | */ |
| 90 | void __init |
| 91 | snd_seq_oss_synth_init(void) |
| 92 | { |
| 93 | snd_use_lock_init(&midi_synth_dev.use_lock); |
| 94 | } |
| 95 | |
| 96 | /* |
| 97 | * registration of the synth device |
| 98 | */ |
| 99 | int |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 100 | snd_seq_oss_synth_register(struct snd_seq_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | { |
| 102 | int i; |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 103 | struct seq_oss_synth *rec; |
| 104 | struct snd_seq_oss_reg *reg = SNDRV_SEQ_DEVICE_ARGPTR(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | unsigned long flags; |
| 106 | |
Takashi Iwai | ecca82b | 2005-09-09 14:20:49 +0200 | [diff] [blame] | 107 | if ((rec = kzalloc(sizeof(*rec), GFP_KERNEL)) == NULL) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | snd_printk(KERN_ERR "can't malloc synth info\n"); |
| 109 | return -ENOMEM; |
| 110 | } |
| 111 | rec->seq_device = -1; |
| 112 | rec->synth_type = reg->type; |
| 113 | rec->synth_subtype = reg->subtype; |
| 114 | rec->nr_voices = reg->nvoices; |
| 115 | rec->oper = reg->oper; |
| 116 | rec->private_data = reg->private_data; |
| 117 | rec->opened = 0; |
| 118 | snd_use_lock_init(&rec->use_lock); |
| 119 | |
| 120 | /* copy and truncate the name of synth device */ |
| 121 | strlcpy(rec->name, dev->name, sizeof(rec->name)); |
| 122 | |
| 123 | /* registration */ |
| 124 | spin_lock_irqsave(®ister_lock, flags); |
| 125 | for (i = 0; i < max_synth_devs; i++) { |
| 126 | if (synth_devs[i] == NULL) |
| 127 | break; |
| 128 | } |
| 129 | if (i >= max_synth_devs) { |
| 130 | if (max_synth_devs >= SNDRV_SEQ_OSS_MAX_SYNTH_DEVS) { |
| 131 | spin_unlock_irqrestore(®ister_lock, flags); |
| 132 | snd_printk(KERN_ERR "no more synth slot\n"); |
| 133 | kfree(rec); |
| 134 | return -ENOMEM; |
| 135 | } |
| 136 | max_synth_devs++; |
| 137 | } |
| 138 | rec->seq_device = i; |
| 139 | synth_devs[i] = rec; |
| 140 | debug_printk(("synth %s registered %d\n", rec->name, i)); |
| 141 | spin_unlock_irqrestore(®ister_lock, flags); |
| 142 | dev->driver_data = rec; |
| 143 | #ifdef SNDRV_OSS_INFO_DEV_SYNTH |
| 144 | if (i < SNDRV_CARDS) |
| 145 | snd_oss_info_register(SNDRV_OSS_INFO_DEV_SYNTH, i, rec->name); |
| 146 | #endif |
| 147 | return 0; |
| 148 | } |
| 149 | |
| 150 | |
| 151 | int |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 152 | snd_seq_oss_synth_unregister(struct snd_seq_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | { |
| 154 | int index; |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 155 | struct seq_oss_synth *rec = dev->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | unsigned long flags; |
| 157 | |
| 158 | spin_lock_irqsave(®ister_lock, flags); |
| 159 | for (index = 0; index < max_synth_devs; index++) { |
| 160 | if (synth_devs[index] == rec) |
| 161 | break; |
| 162 | } |
| 163 | if (index >= max_synth_devs) { |
| 164 | spin_unlock_irqrestore(®ister_lock, flags); |
| 165 | snd_printk(KERN_ERR "can't unregister synth\n"); |
| 166 | return -EINVAL; |
| 167 | } |
| 168 | synth_devs[index] = NULL; |
| 169 | if (index == max_synth_devs - 1) { |
| 170 | for (index--; index >= 0; index--) { |
| 171 | if (synth_devs[index]) |
| 172 | break; |
| 173 | } |
| 174 | max_synth_devs = index + 1; |
| 175 | } |
| 176 | spin_unlock_irqrestore(®ister_lock, flags); |
| 177 | #ifdef SNDRV_OSS_INFO_DEV_SYNTH |
| 178 | if (rec->seq_device < SNDRV_CARDS) |
| 179 | snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_SYNTH, rec->seq_device); |
| 180 | #endif |
| 181 | |
| 182 | snd_use_lock_sync(&rec->use_lock); |
| 183 | kfree(rec); |
| 184 | |
| 185 | return 0; |
| 186 | } |
| 187 | |
| 188 | |
| 189 | /* |
| 190 | */ |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 191 | static struct seq_oss_synth * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | get_sdev(int dev) |
| 193 | { |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 194 | struct seq_oss_synth *rec; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | unsigned long flags; |
| 196 | |
| 197 | spin_lock_irqsave(®ister_lock, flags); |
| 198 | rec = synth_devs[dev]; |
| 199 | if (rec) |
| 200 | snd_use_lock_use(&rec->use_lock); |
| 201 | spin_unlock_irqrestore(®ister_lock, flags); |
| 202 | return rec; |
| 203 | } |
| 204 | |
| 205 | |
| 206 | /* |
| 207 | * set up synth tables |
| 208 | */ |
| 209 | |
| 210 | void |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 211 | snd_seq_oss_synth_setup(struct seq_oss_devinfo *dp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | { |
| 213 | int i; |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 214 | struct seq_oss_synth *rec; |
| 215 | struct seq_oss_synthinfo *info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | |
| 217 | dp->max_synthdev = max_synth_devs; |
| 218 | dp->synth_opened = 0; |
| 219 | memset(dp->synths, 0, sizeof(dp->synths)); |
| 220 | for (i = 0; i < dp->max_synthdev; i++) { |
| 221 | rec = get_sdev(i); |
| 222 | if (rec == NULL) |
| 223 | continue; |
| 224 | if (rec->oper.open == NULL || rec->oper.close == NULL) { |
| 225 | snd_use_lock_free(&rec->use_lock); |
| 226 | continue; |
| 227 | } |
| 228 | info = &dp->synths[i]; |
| 229 | info->arg.app_index = dp->port; |
| 230 | info->arg.file_mode = dp->file_mode; |
| 231 | info->arg.seq_mode = dp->seq_mode; |
| 232 | if (dp->seq_mode == SNDRV_SEQ_OSS_MODE_SYNTH) |
| 233 | info->arg.event_passing = SNDRV_SEQ_OSS_PROCESS_EVENTS; |
| 234 | else |
| 235 | info->arg.event_passing = SNDRV_SEQ_OSS_PASS_EVENTS; |
| 236 | info->opened = 0; |
| 237 | if (!try_module_get(rec->oper.owner)) { |
| 238 | snd_use_lock_free(&rec->use_lock); |
| 239 | continue; |
| 240 | } |
| 241 | if (rec->oper.open(&info->arg, rec->private_data) < 0) { |
| 242 | module_put(rec->oper.owner); |
| 243 | snd_use_lock_free(&rec->use_lock); |
| 244 | continue; |
| 245 | } |
| 246 | info->nr_voices = rec->nr_voices; |
| 247 | if (info->nr_voices > 0) { |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 248 | info->ch = kcalloc(info->nr_voices, sizeof(struct seq_oss_chinfo), GFP_KERNEL); |
Takashi Iwai | c354cd7 | 2008-02-21 12:40:00 +0100 | [diff] [blame] | 249 | if (!info->ch) { |
| 250 | snd_printk(KERN_ERR "Cannot malloc\n"); |
| 251 | rec->oper.close(&info->arg); |
| 252 | module_put(rec->oper.owner); |
| 253 | snd_use_lock_free(&rec->use_lock); |
| 254 | continue; |
| 255 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | reset_channels(info); |
| 257 | } |
| 258 | debug_printk(("synth %d assigned\n", i)); |
| 259 | info->opened++; |
| 260 | rec->opened++; |
| 261 | dp->synth_opened++; |
| 262 | snd_use_lock_free(&rec->use_lock); |
| 263 | } |
| 264 | } |
| 265 | |
| 266 | |
| 267 | /* |
| 268 | * set up synth tables for MIDI emulation - /dev/music mode only |
| 269 | */ |
| 270 | |
| 271 | void |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 272 | snd_seq_oss_synth_setup_midi(struct seq_oss_devinfo *dp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | { |
| 274 | int i; |
| 275 | |
| 276 | if (dp->max_synthdev >= SNDRV_SEQ_OSS_MAX_SYNTH_DEVS) |
| 277 | return; |
| 278 | |
| 279 | for (i = 0; i < dp->max_mididev; i++) { |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 280 | struct seq_oss_synthinfo *info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | info = &dp->synths[dp->max_synthdev]; |
| 282 | if (snd_seq_oss_midi_open(dp, i, dp->file_mode) < 0) |
| 283 | continue; |
| 284 | info->arg.app_index = dp->port; |
| 285 | info->arg.file_mode = dp->file_mode; |
| 286 | info->arg.seq_mode = dp->seq_mode; |
| 287 | info->arg.private_data = info; |
| 288 | info->is_midi = 1; |
| 289 | info->midi_mapped = i; |
| 290 | info->arg.event_passing = SNDRV_SEQ_OSS_PASS_EVENTS; |
| 291 | snd_seq_oss_midi_get_addr(dp, i, &info->arg.addr); |
| 292 | info->opened = 1; |
| 293 | midi_synth_dev.opened++; |
| 294 | dp->max_synthdev++; |
| 295 | if (dp->max_synthdev >= SNDRV_SEQ_OSS_MAX_SYNTH_DEVS) |
| 296 | break; |
| 297 | } |
| 298 | } |
| 299 | |
| 300 | |
| 301 | /* |
| 302 | * clean up synth tables |
| 303 | */ |
| 304 | |
| 305 | void |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 306 | snd_seq_oss_synth_cleanup(struct seq_oss_devinfo *dp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | { |
| 308 | int i; |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 309 | struct seq_oss_synth *rec; |
| 310 | struct seq_oss_synthinfo *info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | |
Takashi Iwai | 7eaa943 | 2008-08-08 17:09:09 +0200 | [diff] [blame] | 312 | if (snd_BUG_ON(dp->max_synthdev >= SNDRV_SEQ_OSS_MAX_SYNTH_DEVS)) |
| 313 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | for (i = 0; i < dp->max_synthdev; i++) { |
| 315 | info = &dp->synths[i]; |
| 316 | if (! info->opened) |
| 317 | continue; |
| 318 | if (info->is_midi) { |
| 319 | if (midi_synth_dev.opened > 0) { |
| 320 | snd_seq_oss_midi_close(dp, info->midi_mapped); |
| 321 | midi_synth_dev.opened--; |
| 322 | } |
| 323 | } else { |
| 324 | rec = get_sdev(i); |
| 325 | if (rec == NULL) |
| 326 | continue; |
| 327 | if (rec->opened > 0) { |
| 328 | debug_printk(("synth %d closed\n", i)); |
| 329 | rec->oper.close(&info->arg); |
| 330 | module_put(rec->oper.owner); |
| 331 | rec->opened = 0; |
| 332 | } |
| 333 | snd_use_lock_free(&rec->use_lock); |
| 334 | } |
Jesper Juhl | 4d57277 | 2005-05-30 17:30:32 +0200 | [diff] [blame] | 335 | kfree(info->sysex); |
| 336 | info->sysex = NULL; |
| 337 | kfree(info->ch); |
| 338 | info->ch = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | } |
| 340 | dp->synth_opened = 0; |
| 341 | dp->max_synthdev = 0; |
| 342 | } |
| 343 | |
| 344 | /* |
| 345 | * check if the specified device is MIDI mapped device |
| 346 | */ |
| 347 | static int |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 348 | is_midi_dev(struct seq_oss_devinfo *dp, int dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | { |
| 350 | if (dev < 0 || dev >= dp->max_synthdev) |
| 351 | return 0; |
| 352 | if (dp->synths[dev].is_midi) |
| 353 | return 1; |
| 354 | return 0; |
| 355 | } |
| 356 | |
| 357 | /* |
| 358 | * return synth device information pointer |
| 359 | */ |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 360 | static struct seq_oss_synth * |
| 361 | get_synthdev(struct seq_oss_devinfo *dp, int dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | { |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 363 | struct seq_oss_synth *rec; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | if (dev < 0 || dev >= dp->max_synthdev) |
| 365 | return NULL; |
| 366 | if (! dp->synths[dev].opened) |
| 367 | return NULL; |
| 368 | if (dp->synths[dev].is_midi) |
| 369 | return &midi_synth_dev; |
| 370 | if ((rec = get_sdev(dev)) == NULL) |
| 371 | return NULL; |
| 372 | if (! rec->opened) { |
| 373 | snd_use_lock_free(&rec->use_lock); |
| 374 | return NULL; |
| 375 | } |
| 376 | return rec; |
| 377 | } |
| 378 | |
| 379 | |
| 380 | /* |
| 381 | * reset note and velocity on each channel. |
| 382 | */ |
| 383 | static void |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 384 | reset_channels(struct seq_oss_synthinfo *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | { |
| 386 | int i; |
| 387 | if (info->ch == NULL || ! info->nr_voices) |
| 388 | return; |
| 389 | for (i = 0; i < info->nr_voices; i++) { |
| 390 | info->ch[i].note = -1; |
| 391 | info->ch[i].vel = 0; |
| 392 | } |
| 393 | } |
| 394 | |
| 395 | |
| 396 | /* |
| 397 | * reset synth device: |
| 398 | * call reset callback. if no callback is defined, send a heartbeat |
| 399 | * event to the corresponding port. |
| 400 | */ |
| 401 | void |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 402 | snd_seq_oss_synth_reset(struct seq_oss_devinfo *dp, int dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | { |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 404 | struct seq_oss_synth *rec; |
| 405 | struct seq_oss_synthinfo *info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | |
Takashi Iwai | 7eaa943 | 2008-08-08 17:09:09 +0200 | [diff] [blame] | 407 | if (snd_BUG_ON(dev < 0 || dev >= dp->max_synthdev)) |
| 408 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | info = &dp->synths[dev]; |
| 410 | if (! info->opened) |
| 411 | return; |
| 412 | if (info->sysex) |
| 413 | info->sysex->len = 0; /* reset sysex */ |
| 414 | reset_channels(info); |
| 415 | if (info->is_midi) { |
| 416 | if (midi_synth_dev.opened <= 0) |
| 417 | return; |
| 418 | snd_seq_oss_midi_reset(dp, info->midi_mapped); |
| 419 | /* reopen the device */ |
| 420 | snd_seq_oss_midi_close(dp, dev); |
| 421 | if (snd_seq_oss_midi_open(dp, info->midi_mapped, |
| 422 | dp->file_mode) < 0) { |
| 423 | midi_synth_dev.opened--; |
| 424 | info->opened = 0; |
Jesper Juhl | 4d57277 | 2005-05-30 17:30:32 +0200 | [diff] [blame] | 425 | kfree(info->sysex); |
| 426 | info->sysex = NULL; |
| 427 | kfree(info->ch); |
| 428 | info->ch = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | } |
| 430 | return; |
| 431 | } |
| 432 | |
| 433 | rec = get_sdev(dev); |
| 434 | if (rec == NULL) |
| 435 | return; |
| 436 | if (rec->oper.reset) { |
| 437 | rec->oper.reset(&info->arg); |
| 438 | } else { |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 439 | struct snd_seq_event ev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | memset(&ev, 0, sizeof(ev)); |
| 441 | snd_seq_oss_fill_addr(dp, &ev, info->arg.addr.client, |
| 442 | info->arg.addr.port); |
| 443 | ev.type = SNDRV_SEQ_EVENT_RESET; |
| 444 | snd_seq_oss_dispatch(dp, &ev, 0, 0); |
| 445 | } |
| 446 | snd_use_lock_free(&rec->use_lock); |
| 447 | } |
| 448 | |
| 449 | |
| 450 | /* |
| 451 | * load a patch record: |
| 452 | * call load_patch callback function |
| 453 | */ |
| 454 | int |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 455 | snd_seq_oss_synth_load_patch(struct seq_oss_devinfo *dp, int dev, int fmt, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | const char __user *buf, int p, int c) |
| 457 | { |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 458 | struct seq_oss_synth *rec; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | int rc; |
| 460 | |
| 461 | if (dev < 0 || dev >= dp->max_synthdev) |
| 462 | return -ENXIO; |
| 463 | |
| 464 | if (is_midi_dev(dp, dev)) |
| 465 | return 0; |
| 466 | if ((rec = get_synthdev(dp, dev)) == NULL) |
| 467 | return -ENXIO; |
| 468 | |
| 469 | if (rec->oper.load_patch == NULL) |
| 470 | rc = -ENXIO; |
| 471 | else |
| 472 | rc = rec->oper.load_patch(&dp->synths[dev].arg, fmt, buf, p, c); |
| 473 | snd_use_lock_free(&rec->use_lock); |
| 474 | return rc; |
| 475 | } |
| 476 | |
| 477 | /* |
| 478 | * check if the device is valid synth device |
| 479 | */ |
| 480 | int |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 481 | snd_seq_oss_synth_is_valid(struct seq_oss_devinfo *dp, int dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | { |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 483 | struct seq_oss_synth *rec; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | rec = get_synthdev(dp, dev); |
| 485 | if (rec) { |
| 486 | snd_use_lock_free(&rec->use_lock); |
| 487 | return 1; |
| 488 | } |
| 489 | return 0; |
| 490 | } |
| 491 | |
| 492 | |
| 493 | /* |
| 494 | * receive OSS 6 byte sysex packet: |
| 495 | * the full sysex message will be sent if it reaches to the end of data |
| 496 | * (0xff). |
| 497 | */ |
| 498 | int |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 499 | snd_seq_oss_synth_sysex(struct seq_oss_devinfo *dp, int dev, unsigned char *buf, struct snd_seq_event *ev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 500 | { |
| 501 | int i, send; |
| 502 | unsigned char *dest; |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 503 | struct seq_oss_synth_sysex *sysex; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | |
| 505 | if (! snd_seq_oss_synth_is_valid(dp, dev)) |
| 506 | return -ENXIO; |
| 507 | |
| 508 | sysex = dp->synths[dev].sysex; |
| 509 | if (sysex == NULL) { |
Takashi Iwai | ecca82b | 2005-09-09 14:20:49 +0200 | [diff] [blame] | 510 | sysex = kzalloc(sizeof(*sysex), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | if (sysex == NULL) |
| 512 | return -ENOMEM; |
| 513 | dp->synths[dev].sysex = sysex; |
| 514 | } |
| 515 | |
| 516 | send = 0; |
| 517 | dest = sysex->buf + sysex->len; |
| 518 | /* copy 6 byte packet to the buffer */ |
| 519 | for (i = 0; i < 6; i++) { |
| 520 | if (buf[i] == 0xff) { |
| 521 | send = 1; |
| 522 | break; |
| 523 | } |
| 524 | dest[i] = buf[i]; |
| 525 | sysex->len++; |
| 526 | if (sysex->len >= MAX_SYSEX_BUFLEN) { |
| 527 | sysex->len = 0; |
| 528 | sysex->skip = 1; |
| 529 | break; |
| 530 | } |
| 531 | } |
| 532 | |
| 533 | if (sysex->len && send) { |
| 534 | if (sysex->skip) { |
| 535 | sysex->skip = 0; |
| 536 | sysex->len = 0; |
| 537 | return -EINVAL; /* skip */ |
| 538 | } |
| 539 | /* copy the data to event record and send it */ |
| 540 | ev->flags = SNDRV_SEQ_EVENT_LENGTH_VARIABLE; |
| 541 | if (snd_seq_oss_synth_addr(dp, dev, ev)) |
| 542 | return -EINVAL; |
| 543 | ev->data.ext.len = sysex->len; |
| 544 | ev->data.ext.ptr = sysex->buf; |
| 545 | sysex->len = 0; |
| 546 | return 0; |
| 547 | } |
| 548 | |
| 549 | return -EINVAL; /* skip */ |
| 550 | } |
| 551 | |
| 552 | /* |
| 553 | * fill the event source/destination addresses |
| 554 | */ |
| 555 | int |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 556 | snd_seq_oss_synth_addr(struct seq_oss_devinfo *dp, int dev, struct snd_seq_event *ev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | { |
| 558 | if (! snd_seq_oss_synth_is_valid(dp, dev)) |
| 559 | return -EINVAL; |
| 560 | snd_seq_oss_fill_addr(dp, ev, dp->synths[dev].arg.addr.client, |
| 561 | dp->synths[dev].arg.addr.port); |
| 562 | return 0; |
| 563 | } |
| 564 | |
| 565 | |
| 566 | /* |
| 567 | * OSS compatible ioctl |
| 568 | */ |
| 569 | int |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 570 | snd_seq_oss_synth_ioctl(struct seq_oss_devinfo *dp, int dev, unsigned int cmd, unsigned long addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | { |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 572 | struct seq_oss_synth *rec; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | int rc; |
| 574 | |
| 575 | if (is_midi_dev(dp, dev)) |
| 576 | return -ENXIO; |
| 577 | if ((rec = get_synthdev(dp, dev)) == NULL) |
| 578 | return -ENXIO; |
| 579 | if (rec->oper.ioctl == NULL) |
| 580 | rc = -ENXIO; |
| 581 | else |
| 582 | rc = rec->oper.ioctl(&dp->synths[dev].arg, cmd, addr); |
| 583 | snd_use_lock_free(&rec->use_lock); |
| 584 | return rc; |
| 585 | } |
| 586 | |
| 587 | |
| 588 | /* |
| 589 | * send OSS raw events - SEQ_PRIVATE and SEQ_VOLUME |
| 590 | */ |
| 591 | int |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 592 | snd_seq_oss_synth_raw_event(struct seq_oss_devinfo *dp, int dev, unsigned char *data, struct snd_seq_event *ev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | { |
| 594 | if (! snd_seq_oss_synth_is_valid(dp, dev) || is_midi_dev(dp, dev)) |
| 595 | return -ENXIO; |
| 596 | ev->type = SNDRV_SEQ_EVENT_OSS; |
| 597 | memcpy(ev->data.raw8.d, data, 8); |
| 598 | return snd_seq_oss_synth_addr(dp, dev, ev); |
| 599 | } |
| 600 | |
| 601 | |
| 602 | /* |
| 603 | * create OSS compatible synth_info record |
| 604 | */ |
| 605 | int |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 606 | snd_seq_oss_synth_make_info(struct seq_oss_devinfo *dp, int dev, struct synth_info *inf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | { |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 608 | struct seq_oss_synth *rec; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 609 | |
Willy Tarreau | 82e68f7 | 2008-08-02 18:25:16 +0200 | [diff] [blame] | 610 | if (dev < 0 || dev >= dp->max_synthdev) |
| 611 | return -ENXIO; |
| 612 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | if (dp->synths[dev].is_midi) { |
| 614 | struct midi_info minf; |
| 615 | snd_seq_oss_midi_make_info(dp, dp->synths[dev].midi_mapped, &minf); |
| 616 | inf->synth_type = SYNTH_TYPE_MIDI; |
| 617 | inf->synth_subtype = 0; |
| 618 | inf->nr_voices = 16; |
| 619 | inf->device = dev; |
| 620 | strlcpy(inf->name, minf.name, sizeof(inf->name)); |
| 621 | } else { |
| 622 | if ((rec = get_synthdev(dp, dev)) == NULL) |
| 623 | return -ENXIO; |
| 624 | inf->synth_type = rec->synth_type; |
| 625 | inf->synth_subtype = rec->synth_subtype; |
| 626 | inf->nr_voices = rec->nr_voices; |
| 627 | inf->device = dev; |
| 628 | strlcpy(inf->name, rec->name, sizeof(inf->name)); |
| 629 | snd_use_lock_free(&rec->use_lock); |
| 630 | } |
| 631 | return 0; |
| 632 | } |
| 633 | |
| 634 | |
Takashi Iwai | 04f141a | 2005-12-01 10:43:51 +0100 | [diff] [blame] | 635 | #ifdef CONFIG_PROC_FS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 636 | /* |
| 637 | * proc interface |
| 638 | */ |
| 639 | void |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 640 | snd_seq_oss_synth_info_read(struct snd_info_buffer *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 641 | { |
| 642 | int i; |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 643 | struct seq_oss_synth *rec; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | |
| 645 | snd_iprintf(buf, "\nNumber of synth devices: %d\n", max_synth_devs); |
| 646 | for (i = 0; i < max_synth_devs; i++) { |
| 647 | snd_iprintf(buf, "\nsynth %d: ", i); |
| 648 | rec = get_sdev(i); |
| 649 | if (rec == NULL) { |
| 650 | snd_iprintf(buf, "*empty*\n"); |
| 651 | continue; |
| 652 | } |
| 653 | snd_iprintf(buf, "[%s]\n", rec->name); |
| 654 | snd_iprintf(buf, " type 0x%x : subtype 0x%x : voices %d\n", |
| 655 | rec->synth_type, rec->synth_subtype, |
| 656 | rec->nr_voices); |
| 657 | snd_iprintf(buf, " capabilities : ioctl %s / load_patch %s\n", |
| 658 | enabled_str((long)rec->oper.ioctl), |
| 659 | enabled_str((long)rec->oper.load_patch)); |
| 660 | snd_use_lock_free(&rec->use_lock); |
| 661 | } |
| 662 | } |
Takashi Iwai | 04f141a | 2005-12-01 10:43:51 +0100 | [diff] [blame] | 663 | #endif /* CONFIG_PROC_FS */ |