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