Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * OSS compatible sequencer driver |
| 3 | * |
| 4 | * open/close and reset interface |
| 5 | * |
| 6 | * Copyright (C) 1998-1999 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_device.h" |
| 24 | #include "seq_oss_synth.h" |
| 25 | #include "seq_oss_midi.h" |
| 26 | #include "seq_oss_writeq.h" |
| 27 | #include "seq_oss_readq.h" |
| 28 | #include "seq_oss_timer.h" |
| 29 | #include "seq_oss_event.h" |
| 30 | #include <linux/init.h> |
| 31 | #include <linux/moduleparam.h> |
| 32 | |
| 33 | /* |
| 34 | * common variables |
| 35 | */ |
| 36 | static int maxqlen = SNDRV_SEQ_OSS_MAX_QLEN; |
| 37 | module_param(maxqlen, int, 0444); |
| 38 | MODULE_PARM_DESC(maxqlen, "maximum queue length"); |
| 39 | |
| 40 | static int system_client = -1; /* ALSA sequencer client number */ |
| 41 | static int system_port = -1; |
| 42 | |
| 43 | static int num_clients; |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 44 | static struct seq_oss_devinfo *client_table[SNDRV_SEQ_OSS_MAX_CLIENTS]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | |
| 46 | |
| 47 | /* |
| 48 | * prototypes |
| 49 | */ |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 50 | static int receive_announce(struct snd_seq_event *ev, int direct, void *private, int atomic, int hop); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | static int translate_mode(struct file *file); |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 52 | static int create_port(struct seq_oss_devinfo *dp); |
| 53 | static int delete_port(struct seq_oss_devinfo *dp); |
| 54 | static int alloc_seq_queue(struct seq_oss_devinfo *dp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | static int delete_seq_queue(int queue); |
| 56 | static void free_devinfo(void *private); |
| 57 | |
| 58 | #define call_ctl(type,rec) snd_seq_kernel_client_ctl(system_client, type, rec) |
| 59 | |
| 60 | |
| 61 | /* |
| 62 | * create sequencer client for OSS sequencer |
| 63 | */ |
| 64 | int __init |
| 65 | snd_seq_oss_create_client(void) |
| 66 | { |
| 67 | int rc; |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 68 | struct snd_seq_port_info *port; |
| 69 | struct snd_seq_port_callback port_callback; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | port = kmalloc(sizeof(*port), GFP_KERNEL); |
Clemens Ladisch | 7b6d924 | 2005-12-12 09:33:37 +0100 | [diff] [blame] | 72 | if (!port) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | rc = -ENOMEM; |
| 74 | goto __error; |
| 75 | } |
| 76 | |
| 77 | /* create ALSA client */ |
Clemens Ladisch | 7b6d924 | 2005-12-12 09:33:37 +0100 | [diff] [blame] | 78 | rc = snd_seq_create_kernel_client(NULL, SNDRV_SEQ_CLIENT_OSS, |
| 79 | "OSS sequencer"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | if (rc < 0) |
| 81 | goto __error; |
| 82 | |
| 83 | system_client = rc; |
| 84 | debug_printk(("new client = %d\n", rc)); |
| 85 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | /* look up midi devices */ |
| 87 | snd_seq_oss_midi_lookup_ports(system_client); |
| 88 | |
| 89 | /* create annoucement receiver port */ |
| 90 | memset(port, 0, sizeof(*port)); |
| 91 | strcpy(port->name, "Receiver"); |
| 92 | port->addr.client = system_client; |
| 93 | port->capability = SNDRV_SEQ_PORT_CAP_WRITE; /* receive only */ |
| 94 | port->type = 0; |
| 95 | |
| 96 | memset(&port_callback, 0, sizeof(port_callback)); |
| 97 | /* don't set port_callback.owner here. otherwise the module counter |
| 98 | * is incremented and we can no longer release the module.. |
| 99 | */ |
| 100 | port_callback.event_input = receive_announce; |
| 101 | port->kernel = &port_callback; |
| 102 | |
| 103 | call_ctl(SNDRV_SEQ_IOCTL_CREATE_PORT, port); |
| 104 | if ((system_port = port->addr.port) >= 0) { |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 105 | struct snd_seq_port_subscribe subs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | |
| 107 | memset(&subs, 0, sizeof(subs)); |
| 108 | subs.sender.client = SNDRV_SEQ_CLIENT_SYSTEM; |
| 109 | subs.sender.port = SNDRV_SEQ_PORT_SYSTEM_ANNOUNCE; |
| 110 | subs.dest.client = system_client; |
| 111 | subs.dest.port = system_port; |
| 112 | call_ctl(SNDRV_SEQ_IOCTL_SUBSCRIBE_PORT, &subs); |
| 113 | } |
| 114 | rc = 0; |
| 115 | |
| 116 | __error: |
| 117 | kfree(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | return rc; |
| 119 | } |
| 120 | |
| 121 | |
| 122 | /* |
| 123 | * receive annoucement from system port, and check the midi device |
| 124 | */ |
| 125 | static int |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 126 | receive_announce(struct snd_seq_event *ev, int direct, void *private, int atomic, int hop) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | { |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 128 | struct snd_seq_port_info pinfo; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | |
| 130 | if (atomic) |
| 131 | return 0; /* it must not happen */ |
| 132 | |
| 133 | switch (ev->type) { |
| 134 | case SNDRV_SEQ_EVENT_PORT_START: |
| 135 | case SNDRV_SEQ_EVENT_PORT_CHANGE: |
| 136 | if (ev->data.addr.client == system_client) |
| 137 | break; /* ignore myself */ |
| 138 | memset(&pinfo, 0, sizeof(pinfo)); |
| 139 | pinfo.addr = ev->data.addr; |
| 140 | if (call_ctl(SNDRV_SEQ_IOCTL_GET_PORT_INFO, &pinfo) >= 0) |
| 141 | snd_seq_oss_midi_check_new_port(&pinfo); |
| 142 | break; |
| 143 | |
| 144 | case SNDRV_SEQ_EVENT_PORT_EXIT: |
| 145 | if (ev->data.addr.client == system_client) |
| 146 | break; /* ignore myself */ |
| 147 | snd_seq_oss_midi_check_exit_port(ev->data.addr.client, |
| 148 | ev->data.addr.port); |
| 149 | break; |
| 150 | } |
| 151 | return 0; |
| 152 | } |
| 153 | |
| 154 | |
| 155 | /* |
| 156 | * delete OSS sequencer client |
| 157 | */ |
| 158 | int |
| 159 | snd_seq_oss_delete_client(void) |
| 160 | { |
| 161 | if (system_client >= 0) |
| 162 | snd_seq_delete_kernel_client(system_client); |
| 163 | |
| 164 | snd_seq_oss_midi_clear_all(); |
| 165 | |
| 166 | return 0; |
| 167 | } |
| 168 | |
| 169 | |
| 170 | /* |
| 171 | * open sequencer device |
| 172 | */ |
| 173 | int |
| 174 | snd_seq_oss_open(struct file *file, int level) |
| 175 | { |
| 176 | int i, rc; |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 177 | struct seq_oss_devinfo *dp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | |
Eugene Teo | 7034632 | 2007-08-07 14:34:23 +0200 | [diff] [blame] | 179 | dp = kzalloc(sizeof(*dp), GFP_KERNEL); |
| 180 | if (!dp) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | snd_printk(KERN_ERR "can't malloc device info\n"); |
| 182 | return -ENOMEM; |
| 183 | } |
| 184 | debug_printk(("oss_open: dp = %p\n", dp)); |
| 185 | |
Eugene Teo | 7034632 | 2007-08-07 14:34:23 +0200 | [diff] [blame] | 186 | dp->cseq = system_client; |
| 187 | dp->port = -1; |
| 188 | dp->queue = -1; |
| 189 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | for (i = 0; i < SNDRV_SEQ_OSS_MAX_CLIENTS; i++) { |
| 191 | if (client_table[i] == NULL) |
| 192 | break; |
| 193 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | |
| 195 | dp->index = i; |
Eugene Teo | 7034632 | 2007-08-07 14:34:23 +0200 | [diff] [blame] | 196 | if (i >= SNDRV_SEQ_OSS_MAX_CLIENTS) { |
| 197 | snd_printk(KERN_ERR "too many applications\n"); |
| 198 | rc = -ENOMEM; |
| 199 | goto _error; |
| 200 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | |
| 202 | /* look up synth and midi devices */ |
| 203 | snd_seq_oss_synth_setup(dp); |
| 204 | snd_seq_oss_midi_setup(dp); |
| 205 | |
| 206 | if (dp->synth_opened == 0 && dp->max_mididev == 0) { |
| 207 | /* snd_printk(KERN_ERR "no device found\n"); */ |
| 208 | rc = -ENODEV; |
| 209 | goto _error; |
| 210 | } |
| 211 | |
| 212 | /* create port */ |
| 213 | debug_printk(("create new port\n")); |
Eugene Teo | 7034632 | 2007-08-07 14:34:23 +0200 | [diff] [blame] | 214 | rc = create_port(dp); |
| 215 | if (rc < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | snd_printk(KERN_ERR "can't create port\n"); |
| 217 | goto _error; |
| 218 | } |
| 219 | |
| 220 | /* allocate queue */ |
| 221 | debug_printk(("allocate queue\n")); |
Eugene Teo | 7034632 | 2007-08-07 14:34:23 +0200 | [diff] [blame] | 222 | rc = alloc_seq_queue(dp); |
| 223 | if (rc < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | goto _error; |
| 225 | |
| 226 | /* set address */ |
| 227 | dp->addr.client = dp->cseq; |
| 228 | dp->addr.port = dp->port; |
| 229 | /*dp->addr.queue = dp->queue;*/ |
| 230 | /*dp->addr.channel = 0;*/ |
| 231 | |
| 232 | dp->seq_mode = level; |
| 233 | |
| 234 | /* set up file mode */ |
| 235 | dp->file_mode = translate_mode(file); |
| 236 | |
| 237 | /* initialize read queue */ |
| 238 | debug_printk(("initialize read queue\n")); |
| 239 | if (is_read_mode(dp->file_mode)) { |
Eugene Teo | 7034632 | 2007-08-07 14:34:23 +0200 | [diff] [blame] | 240 | dp->readq = snd_seq_oss_readq_new(dp, maxqlen); |
| 241 | if (!dp->readq) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | rc = -ENOMEM; |
| 243 | goto _error; |
| 244 | } |
| 245 | } |
| 246 | |
| 247 | /* initialize write queue */ |
| 248 | debug_printk(("initialize write queue\n")); |
| 249 | if (is_write_mode(dp->file_mode)) { |
| 250 | dp->writeq = snd_seq_oss_writeq_new(dp, maxqlen); |
Eugene Teo | 7034632 | 2007-08-07 14:34:23 +0200 | [diff] [blame] | 251 | if (!dp->writeq) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | rc = -ENOMEM; |
| 253 | goto _error; |
| 254 | } |
| 255 | } |
| 256 | |
| 257 | /* initialize timer */ |
| 258 | debug_printk(("initialize timer\n")); |
Eugene Teo | 7034632 | 2007-08-07 14:34:23 +0200 | [diff] [blame] | 259 | dp->timer = snd_seq_oss_timer_new(dp); |
| 260 | if (!dp->timer) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | snd_printk(KERN_ERR "can't alloc timer\n"); |
| 262 | rc = -ENOMEM; |
| 263 | goto _error; |
| 264 | } |
| 265 | debug_printk(("timer initialized\n")); |
| 266 | |
| 267 | /* set private data pointer */ |
| 268 | file->private_data = dp; |
| 269 | |
| 270 | /* set up for mode2 */ |
| 271 | if (level == SNDRV_SEQ_OSS_MODE_MUSIC) |
| 272 | snd_seq_oss_synth_setup_midi(dp); |
| 273 | else if (is_read_mode(dp->file_mode)) |
| 274 | snd_seq_oss_midi_open_all(dp, SNDRV_SEQ_OSS_FILE_READ); |
| 275 | |
| 276 | client_table[dp->index] = dp; |
| 277 | num_clients++; |
| 278 | |
| 279 | debug_printk(("open done\n")); |
| 280 | return 0; |
| 281 | |
| 282 | _error: |
Eugene Teo | 7034632 | 2007-08-07 14:34:23 +0200 | [diff] [blame] | 283 | snd_seq_oss_writeq_delete(dp->writeq); |
| 284 | snd_seq_oss_readq_delete(dp->readq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | snd_seq_oss_synth_cleanup(dp); |
| 286 | snd_seq_oss_midi_cleanup(dp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | delete_port(dp); |
Eugene Teo | 7034632 | 2007-08-07 14:34:23 +0200 | [diff] [blame] | 288 | delete_seq_queue(dp->queue); |
| 289 | kfree(dp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | |
| 291 | return rc; |
| 292 | } |
| 293 | |
| 294 | /* |
| 295 | * translate file flags to private mode |
| 296 | */ |
| 297 | static int |
| 298 | translate_mode(struct file *file) |
| 299 | { |
| 300 | int file_mode = 0; |
| 301 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) |
| 302 | file_mode |= SNDRV_SEQ_OSS_FILE_WRITE; |
| 303 | if ((file->f_flags & O_ACCMODE) != O_WRONLY) |
| 304 | file_mode |= SNDRV_SEQ_OSS_FILE_READ; |
| 305 | if (file->f_flags & O_NONBLOCK) |
| 306 | file_mode |= SNDRV_SEQ_OSS_FILE_NONBLOCK; |
| 307 | return file_mode; |
| 308 | } |
| 309 | |
| 310 | |
| 311 | /* |
| 312 | * create sequencer port |
| 313 | */ |
| 314 | static int |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 315 | create_port(struct seq_oss_devinfo *dp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | { |
| 317 | int rc; |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 318 | struct snd_seq_port_info port; |
| 319 | struct snd_seq_port_callback callback; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | |
| 321 | memset(&port, 0, sizeof(port)); |
| 322 | port.addr.client = dp->cseq; |
| 323 | sprintf(port.name, "Sequencer-%d", dp->index); |
| 324 | port.capability = SNDRV_SEQ_PORT_CAP_READ|SNDRV_SEQ_PORT_CAP_WRITE; /* no subscription */ |
| 325 | port.type = SNDRV_SEQ_PORT_TYPE_SPECIFIC; |
| 326 | port.midi_channels = 128; |
| 327 | port.synth_voices = 128; |
| 328 | |
| 329 | memset(&callback, 0, sizeof(callback)); |
| 330 | callback.owner = THIS_MODULE; |
| 331 | callback.private_data = dp; |
| 332 | callback.event_input = snd_seq_oss_event_input; |
| 333 | callback.private_free = free_devinfo; |
| 334 | port.kernel = &callback; |
| 335 | |
| 336 | rc = call_ctl(SNDRV_SEQ_IOCTL_CREATE_PORT, &port); |
| 337 | if (rc < 0) |
| 338 | return rc; |
| 339 | |
| 340 | dp->port = port.addr.port; |
| 341 | debug_printk(("new port = %d\n", port.addr.port)); |
| 342 | |
| 343 | return 0; |
| 344 | } |
| 345 | |
| 346 | /* |
| 347 | * delete ALSA port |
| 348 | */ |
| 349 | static int |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 350 | delete_port(struct seq_oss_devinfo *dp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | { |
| 352 | if (dp->port < 0) |
| 353 | return 0; |
| 354 | |
| 355 | debug_printk(("delete_port %i\n", dp->port)); |
| 356 | return snd_seq_event_port_detach(dp->cseq, dp->port); |
| 357 | } |
| 358 | |
| 359 | /* |
| 360 | * allocate a queue |
| 361 | */ |
| 362 | static int |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 363 | alloc_seq_queue(struct seq_oss_devinfo *dp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | { |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 365 | struct snd_seq_queue_info qinfo; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | int rc; |
| 367 | |
| 368 | memset(&qinfo, 0, sizeof(qinfo)); |
| 369 | qinfo.owner = system_client; |
| 370 | qinfo.locked = 1; |
| 371 | strcpy(qinfo.name, "OSS Sequencer Emulation"); |
| 372 | if ((rc = call_ctl(SNDRV_SEQ_IOCTL_CREATE_QUEUE, &qinfo)) < 0) |
| 373 | return rc; |
| 374 | dp->queue = qinfo.queue; |
| 375 | return 0; |
| 376 | } |
| 377 | |
| 378 | /* |
| 379 | * release queue |
| 380 | */ |
| 381 | static int |
| 382 | delete_seq_queue(int queue) |
| 383 | { |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 384 | struct snd_seq_queue_info qinfo; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | int rc; |
| 386 | |
| 387 | if (queue < 0) |
| 388 | return 0; |
| 389 | memset(&qinfo, 0, sizeof(qinfo)); |
| 390 | qinfo.queue = queue; |
| 391 | rc = call_ctl(SNDRV_SEQ_IOCTL_DELETE_QUEUE, &qinfo); |
| 392 | if (rc < 0) |
| 393 | printk(KERN_ERR "seq-oss: unable to delete queue %d (%d)\n", queue, rc); |
| 394 | return rc; |
| 395 | } |
| 396 | |
| 397 | |
| 398 | /* |
| 399 | * free device informations - private_free callback of port |
| 400 | */ |
| 401 | static void |
| 402 | free_devinfo(void *private) |
| 403 | { |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 404 | struct seq_oss_devinfo *dp = (struct seq_oss_devinfo *)private; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | |
| 406 | if (dp->timer) |
| 407 | snd_seq_oss_timer_delete(dp->timer); |
| 408 | |
| 409 | if (dp->writeq) |
| 410 | snd_seq_oss_writeq_delete(dp->writeq); |
| 411 | |
| 412 | if (dp->readq) |
| 413 | snd_seq_oss_readq_delete(dp->readq); |
| 414 | |
| 415 | kfree(dp); |
| 416 | } |
| 417 | |
| 418 | |
| 419 | /* |
| 420 | * close sequencer device |
| 421 | */ |
| 422 | void |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 423 | snd_seq_oss_release(struct seq_oss_devinfo *dp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | { |
| 425 | int queue; |
| 426 | |
| 427 | client_table[dp->index] = NULL; |
| 428 | num_clients--; |
| 429 | |
| 430 | debug_printk(("resetting..\n")); |
| 431 | snd_seq_oss_reset(dp); |
| 432 | |
| 433 | debug_printk(("cleaning up..\n")); |
| 434 | snd_seq_oss_synth_cleanup(dp); |
| 435 | snd_seq_oss_midi_cleanup(dp); |
| 436 | |
| 437 | /* clear slot */ |
| 438 | debug_printk(("releasing resource..\n")); |
| 439 | queue = dp->queue; |
| 440 | if (dp->port >= 0) |
| 441 | delete_port(dp); |
| 442 | delete_seq_queue(queue); |
| 443 | |
| 444 | debug_printk(("release done\n")); |
| 445 | } |
| 446 | |
| 447 | |
| 448 | /* |
| 449 | * Wait until the queue is empty (if we don't have nonblock) |
| 450 | */ |
| 451 | void |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 452 | snd_seq_oss_drain_write(struct seq_oss_devinfo *dp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | { |
| 454 | if (! dp->timer->running) |
| 455 | return; |
| 456 | if (is_write_mode(dp->file_mode) && !is_nonblock_mode(dp->file_mode) && |
| 457 | dp->writeq) { |
| 458 | debug_printk(("syncing..\n")); |
| 459 | while (snd_seq_oss_writeq_sync(dp->writeq)) |
| 460 | ; |
| 461 | } |
| 462 | } |
| 463 | |
| 464 | |
| 465 | /* |
| 466 | * reset sequencer devices |
| 467 | */ |
| 468 | void |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 469 | snd_seq_oss_reset(struct seq_oss_devinfo *dp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | { |
| 471 | int i; |
| 472 | |
| 473 | /* reset all synth devices */ |
| 474 | for (i = 0; i < dp->max_synthdev; i++) |
| 475 | snd_seq_oss_synth_reset(dp, i); |
| 476 | |
| 477 | /* reset all midi devices */ |
| 478 | if (dp->seq_mode != SNDRV_SEQ_OSS_MODE_MUSIC) { |
| 479 | for (i = 0; i < dp->max_mididev; i++) |
| 480 | snd_seq_oss_midi_reset(dp, i); |
| 481 | } |
| 482 | |
| 483 | /* remove queues */ |
| 484 | if (dp->readq) |
| 485 | snd_seq_oss_readq_clear(dp->readq); |
| 486 | if (dp->writeq) |
| 487 | snd_seq_oss_writeq_clear(dp->writeq); |
| 488 | |
| 489 | /* reset timer */ |
| 490 | snd_seq_oss_timer_stop(dp->timer); |
| 491 | } |
| 492 | |
| 493 | |
Takashi Iwai | 04f141a | 2005-12-01 10:43:51 +0100 | [diff] [blame] | 494 | #ifdef CONFIG_PROC_FS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | /* |
| 496 | * misc. functions for proc interface |
| 497 | */ |
| 498 | char * |
| 499 | enabled_str(int bool) |
| 500 | { |
| 501 | return bool ? "enabled" : "disabled"; |
| 502 | } |
| 503 | |
| 504 | static char * |
| 505 | filemode_str(int val) |
| 506 | { |
| 507 | static char *str[] = { |
| 508 | "none", "read", "write", "read/write", |
| 509 | }; |
| 510 | return str[val & SNDRV_SEQ_OSS_FILE_ACMODE]; |
| 511 | } |
| 512 | |
| 513 | |
| 514 | /* |
| 515 | * proc interface |
| 516 | */ |
| 517 | void |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 518 | snd_seq_oss_system_info_read(struct snd_info_buffer *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | { |
| 520 | int i; |
Takashi Iwai | 080dece | 2005-11-17 14:05:16 +0100 | [diff] [blame] | 521 | struct seq_oss_devinfo *dp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | |
| 523 | snd_iprintf(buf, "ALSA client number %d\n", system_client); |
| 524 | snd_iprintf(buf, "ALSA receiver port %d\n", system_port); |
| 525 | |
| 526 | snd_iprintf(buf, "\nNumber of applications: %d\n", num_clients); |
| 527 | for (i = 0; i < num_clients; i++) { |
| 528 | snd_iprintf(buf, "\nApplication %d: ", i); |
| 529 | if ((dp = client_table[i]) == NULL) { |
| 530 | snd_iprintf(buf, "*empty*\n"); |
| 531 | continue; |
| 532 | } |
| 533 | snd_iprintf(buf, "port %d : queue %d\n", dp->port, dp->queue); |
| 534 | snd_iprintf(buf, " sequencer mode = %s : file open mode = %s\n", |
| 535 | (dp->seq_mode ? "music" : "synth"), |
| 536 | filemode_str(dp->file_mode)); |
| 537 | if (dp->seq_mode) |
| 538 | snd_iprintf(buf, " timer tempo = %d, timebase = %d\n", |
| 539 | dp->timer->oss_tempo, dp->timer->oss_timebase); |
| 540 | snd_iprintf(buf, " max queue length %d\n", maxqlen); |
| 541 | if (is_read_mode(dp->file_mode) && dp->readq) |
| 542 | snd_seq_oss_readq_info_read(dp->readq, buf); |
| 543 | } |
| 544 | } |
Takashi Iwai | 04f141a | 2005-12-01 10:43:51 +0100 | [diff] [blame] | 545 | #endif /* CONFIG_PROC_FS */ |