1 /* radio-cadet.c - A video4linux driver for the ADS Cadet AM/FM Radio Card 2 * 3 * by Fred Gleason <fredg@wava.com> 4 * Version 0.3.3 5 * 6 * (Loosely) based on code for the Aztech radio card by 7 * 8 * Russell Kroll (rkroll@exploits.org) 9 * Quay Ly 10 * Donald Song 11 * Jason Lewis (jlewis@twilight.vtc.vsc.edu) 12 * Scott McGrath (smcgrath@twilight.vtc.vsc.edu) 13 * William McGrath (wmcgrath@twilight.vtc.vsc.edu) 14 * 15 * History: 16 * 2000-04-29 Russell Kroll <rkroll@exploits.org> 17 * Added ISAPnP detection for Linux 2.3/2.4 18 * 19 * 2001-01-10 Russell Kroll <rkroll@exploits.org> 20 * Removed dead CONFIG_RADIO_CADET_PORT code 21 * PnP detection on load is now default (no args necessary) 22 * 23 * 2002-01-17 Adam Belay <ambx1@neo.rr.com> 24 * Updated to latest pnp code 25 * 26 * 2003-01-31 Alan Cox <alan@lxorguk.ukuu.org.uk> 27 * Cleaned up locking, delay code, general odds and ends 28 * 29 * 2006-07-30 Hans J. Koch <koch@hjk-az.de> 30 * Changed API to V4L2 31 */ 32 33 #include <linux/module.h> /* Modules */ 34 #include <linux/init.h> /* Initdata */ 35 #include <linux/ioport.h> /* request_region */ 36 #include <linux/delay.h> /* udelay */ 37 #include <linux/videodev2.h> /* V4L2 API defs */ 38 #include <linux/param.h> 39 #include <linux/pnp.h> 40 #include <linux/sched.h> 41 #include <linux/io.h> /* outb, outb_p */ 42 #include <media/v4l2-device.h> 43 #include <media/v4l2-ioctl.h> 44 45 MODULE_AUTHOR("Fred Gleason, Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath"); 46 MODULE_DESCRIPTION("A driver for the ADS Cadet AM/FM/RDS radio card."); 47 MODULE_LICENSE("GPL"); 48 MODULE_VERSION("0.3.4"); 49 50 static int io = -1; /* default to isapnp activation */ 51 static int radio_nr = -1; 52 53 module_param(io, int, 0); 54 MODULE_PARM_DESC(io, "I/O address of Cadet card (0x330,0x332,0x334,0x336,0x338,0x33a,0x33c,0x33e)"); 55 module_param(radio_nr, int, 0); 56 57 #define RDS_BUFFER 256 58 #define RDS_RX_FLAG 1 59 #define MBS_RX_FLAG 2 60 61 struct cadet { 62 struct v4l2_device v4l2_dev; 63 struct video_device vdev; 64 int io; 65 int users; 66 int curtuner; 67 int tunestat; 68 int sigstrength; 69 wait_queue_head_t read_queue; 70 struct timer_list readtimer; 71 __u8 rdsin, rdsout, rdsstat; 72 unsigned char rdsbuf[RDS_BUFFER]; 73 struct mutex lock; 74 int reading; 75 }; 76 77 static struct cadet cadet_card; 78 79 /* 80 * Signal Strength Threshold Values 81 * The V4L API spec does not define any particular unit for the signal 82 * strength value. These values are in microvolts of RF at the tuner's input. 83 */ 84 static __u16 sigtable[2][4] = { 85 { 5, 10, 30, 150 }, 86 { 28, 40, 63, 1000 } 87 }; 88 89 90 static int cadet_getstereo(struct cadet *dev) 91 { 92 int ret = V4L2_TUNER_SUB_MONO; 93 94 if (dev->curtuner != 0) /* Only FM has stereo capability! */ 95 return V4L2_TUNER_SUB_MONO; 96 97 mutex_lock(&dev->lock); 98 outb(7, dev->io); /* Select tuner control */ 99 if ((inb(dev->io + 1) & 0x40) == 0) 100 ret = V4L2_TUNER_SUB_STEREO; 101 mutex_unlock(&dev->lock); 102 return ret; 103 } 104 105 static unsigned cadet_gettune(struct cadet *dev) 106 { 107 int curvol, i; 108 unsigned fifo = 0; 109 110 /* 111 * Prepare for read 112 */ 113 114 mutex_lock(&dev->lock); 115 116 outb(7, dev->io); /* Select tuner control */ 117 curvol = inb(dev->io + 1); /* Save current volume/mute setting */ 118 outb(0x00, dev->io + 1); /* Ensure WRITE-ENABLE is LOW */ 119 dev->tunestat = 0xffff; 120 121 /* 122 * Read the shift register 123 */ 124 for (i = 0; i < 25; i++) { 125 fifo = (fifo << 1) | ((inb(dev->io + 1) >> 7) & 0x01); 126 if (i < 24) { 127 outb(0x01, dev->io + 1); 128 dev->tunestat &= inb(dev->io + 1); 129 outb(0x00, dev->io + 1); 130 } 131 } 132 133 /* 134 * Restore volume/mute setting 135 */ 136 outb(curvol, dev->io + 1); 137 mutex_unlock(&dev->lock); 138 139 return fifo; 140 } 141 142 static unsigned cadet_getfreq(struct cadet *dev) 143 { 144 int i; 145 unsigned freq = 0, test, fifo = 0; 146 147 /* 148 * Read current tuning 149 */ 150 fifo = cadet_gettune(dev); 151 152 /* 153 * Convert to actual frequency 154 */ 155 if (dev->curtuner == 0) { /* FM */ 156 test = 12500; 157 for (i = 0; i < 14; i++) { 158 if ((fifo & 0x01) != 0) 159 freq += test; 160 test = test << 1; 161 fifo = fifo >> 1; 162 } 163 freq -= 10700000; /* IF frequency is 10.7 MHz */ 164 freq = (freq * 16) / 1000000; /* Make it 1/16 MHz */ 165 } 166 if (dev->curtuner == 1) /* AM */ 167 freq = ((fifo & 0x7fff) - 2010) * 16; 168 169 return freq; 170 } 171 172 static void cadet_settune(struct cadet *dev, unsigned fifo) 173 { 174 int i; 175 unsigned test; 176 177 mutex_lock(&dev->lock); 178 179 outb(7, dev->io); /* Select tuner control */ 180 /* 181 * Write the shift register 182 */ 183 test = 0; 184 test = (fifo >> 23) & 0x02; /* Align data for SDO */ 185 test |= 0x1c; /* SDM=1, SWE=1, SEN=1, SCK=0 */ 186 outb(7, dev->io); /* Select tuner control */ 187 outb(test, dev->io + 1); /* Initialize for write */ 188 for (i = 0; i < 25; i++) { 189 test |= 0x01; /* Toggle SCK High */ 190 outb(test, dev->io + 1); 191 test &= 0xfe; /* Toggle SCK Low */ 192 outb(test, dev->io + 1); 193 fifo = fifo << 1; /* Prepare the next bit */ 194 test = 0x1c | ((fifo >> 23) & 0x02); 195 outb(test, dev->io + 1); 196 } 197 mutex_unlock(&dev->lock); 198 } 199 200 static void cadet_setfreq(struct cadet *dev, unsigned freq) 201 { 202 unsigned fifo; 203 int i, j, test; 204 int curvol; 205 206 /* 207 * Formulate a fifo command 208 */ 209 fifo = 0; 210 if (dev->curtuner == 0) { /* FM */ 211 test = 102400; 212 freq = (freq * 1000) / 16; /* Make it kHz */ 213 freq += 10700; /* IF is 10700 kHz */ 214 for (i = 0; i < 14; i++) { 215 fifo = fifo << 1; 216 if (freq >= test) { 217 fifo |= 0x01; 218 freq -= test; 219 } 220 test = test >> 1; 221 } 222 } 223 if (dev->curtuner == 1) { /* AM */ 224 fifo = (freq / 16) + 2010; /* Make it kHz */ 225 fifo |= 0x100000; /* Select AM Band */ 226 } 227 228 /* 229 * Save current volume/mute setting 230 */ 231 232 mutex_lock(&dev->lock); 233 outb(7, dev->io); /* Select tuner control */ 234 curvol = inb(dev->io + 1); 235 mutex_unlock(&dev->lock); 236 237 /* 238 * Tune the card 239 */ 240 for (j = 3; j > -1; j--) { 241 cadet_settune(dev, fifo | (j << 16)); 242 243 mutex_lock(&dev->lock); 244 outb(7, dev->io); /* Select tuner control */ 245 outb(curvol, dev->io + 1); 246 mutex_unlock(&dev->lock); 247 248 msleep(100); 249 250 cadet_gettune(dev); 251 if ((dev->tunestat & 0x40) == 0) { /* Tuned */ 252 dev->sigstrength = sigtable[dev->curtuner][j]; 253 return; 254 } 255 } 256 dev->sigstrength = 0; 257 } 258 259 260 static int cadet_getvol(struct cadet *dev) 261 { 262 int ret = 0; 263 264 mutex_lock(&dev->lock); 265 266 outb(7, dev->io); /* Select tuner control */ 267 if ((inb(dev->io + 1) & 0x20) != 0) 268 ret = 0xffff; 269 270 mutex_unlock(&dev->lock); 271 return ret; 272 } 273 274 275 static void cadet_setvol(struct cadet *dev, int vol) 276 { 277 mutex_lock(&dev->lock); 278 outb(7, dev->io); /* Select tuner control */ 279 if (vol > 0) 280 outb(0x20, dev->io + 1); 281 else 282 outb(0x00, dev->io + 1); 283 mutex_unlock(&dev->lock); 284 } 285 286 static void cadet_handler(unsigned long data) 287 { 288 struct cadet *dev = (void *)data; 289 290 /* Service the RDS fifo */ 291 if (mutex_trylock(&dev->lock)) { 292 outb(0x3, dev->io); /* Select RDS Decoder Control */ 293 if ((inb(dev->io + 1) & 0x20) != 0) 294 printk(KERN_CRIT "cadet: RDS fifo overflow\n"); 295 outb(0x80, dev->io); /* Select RDS fifo */ 296 while ((inb(dev->io) & 0x80) != 0) { 297 dev->rdsbuf[dev->rdsin] = inb(dev->io + 1); 298 if (dev->rdsin == dev->rdsout) 299 printk(KERN_WARNING "cadet: RDS buffer overflow\n"); 300 else 301 dev->rdsin++; 302 } 303 mutex_unlock(&dev->lock); 304 } 305 306 /* 307 * Service pending read 308 */ 309 if (dev->rdsin != dev->rdsout) 310 wake_up_interruptible(&dev->read_queue); 311 312 /* 313 * Clean up and exit 314 */ 315 init_timer(&dev->readtimer); 316 dev->readtimer.function = cadet_handler; 317 dev->readtimer.data = (unsigned long)0; 318 dev->readtimer.expires = jiffies + msecs_to_jiffies(50); 319 add_timer(&dev->readtimer); 320 } 321 322 323 static ssize_t cadet_read(struct file *file, char __user *data, size_t count, loff_t *ppos) 324 { 325 struct cadet *dev = video_drvdata(file); 326 unsigned char readbuf[RDS_BUFFER]; 327 int i = 0; 328 329 mutex_lock(&dev->lock); 330 if (dev->rdsstat == 0) { 331 dev->rdsstat = 1; 332 outb(0x80, dev->io); /* Select RDS fifo */ 333 init_timer(&dev->readtimer); 334 dev->readtimer.function = cadet_handler; 335 dev->readtimer.data = (unsigned long)dev; 336 dev->readtimer.expires = jiffies + msecs_to_jiffies(50); 337 add_timer(&dev->readtimer); 338 } 339 if (dev->rdsin == dev->rdsout) { 340 mutex_unlock(&dev->lock); 341 if (file->f_flags & O_NONBLOCK) 342 return -EWOULDBLOCK; 343 interruptible_sleep_on(&dev->read_queue); 344 mutex_lock(&dev->lock); 345 } 346 while (i < count && dev->rdsin != dev->rdsout) 347 readbuf[i++] = dev->rdsbuf[dev->rdsout++]; 348 mutex_unlock(&dev->lock); 349 350 if (copy_to_user(data, readbuf, i)) 351 return -EFAULT; 352 return i; 353 } 354 355 356 static int vidioc_querycap(struct file *file, void *priv, 357 struct v4l2_capability *v) 358 { 359 strlcpy(v->driver, "ADS Cadet", sizeof(v->driver)); 360 strlcpy(v->card, "ADS Cadet", sizeof(v->card)); 361 strlcpy(v->bus_info, "ISA", sizeof(v->bus_info)); 362 v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO | 363 V4L2_CAP_READWRITE | V4L2_CAP_RDS_CAPTURE; 364 return 0; 365 } 366 367 static int vidioc_g_tuner(struct file *file, void *priv, 368 struct v4l2_tuner *v) 369 { 370 struct cadet *dev = video_drvdata(file); 371 372 v->type = V4L2_TUNER_RADIO; 373 switch (v->index) { 374 case 0: 375 strlcpy(v->name, "FM", sizeof(v->name)); 376 v->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS | 377 V4L2_TUNER_CAP_RDS_BLOCK_IO; 378 v->rangelow = 1400; /* 87.5 MHz */ 379 v->rangehigh = 1728; /* 108.0 MHz */ 380 v->rxsubchans = cadet_getstereo(dev); 381 switch (v->rxsubchans) { 382 case V4L2_TUNER_SUB_MONO: 383 v->audmode = V4L2_TUNER_MODE_MONO; 384 break; 385 case V4L2_TUNER_SUB_STEREO: 386 v->audmode = V4L2_TUNER_MODE_STEREO; 387 break; 388 default: 389 break; 390 } 391 v->rxsubchans |= V4L2_TUNER_SUB_RDS; 392 break; 393 case 1: 394 strlcpy(v->name, "AM", sizeof(v->name)); 395 v->capability = V4L2_TUNER_CAP_LOW; 396 v->rangelow = 8320; /* 520 kHz */ 397 v->rangehigh = 26400; /* 1650 kHz */ 398 v->rxsubchans = V4L2_TUNER_SUB_MONO; 399 v->audmode = V4L2_TUNER_MODE_MONO; 400 break; 401 default: 402 return -EINVAL; 403 } 404 v->signal = dev->sigstrength; /* We might need to modify scaling of this */ 405 return 0; 406 } 407 408 static int vidioc_s_tuner(struct file *file, void *priv, 409 struct v4l2_tuner *v) 410 { 411 struct cadet *dev = video_drvdata(file); 412 413 if (v->index != 0 && v->index != 1) 414 return -EINVAL; 415 dev->curtuner = v->index; 416 return 0; 417 } 418 419 static int vidioc_g_frequency(struct file *file, void *priv, 420 struct v4l2_frequency *f) 421 { 422 struct cadet *dev = video_drvdata(file); 423 424 f->tuner = dev->curtuner; 425 f->type = V4L2_TUNER_RADIO; 426 f->frequency = cadet_getfreq(dev); 427 return 0; 428 } 429 430 431 static int vidioc_s_frequency(struct file *file, void *priv, 432 struct v4l2_frequency *f) 433 { 434 struct cadet *dev = video_drvdata(file); 435 436 if (f->type != V4L2_TUNER_RADIO) 437 return -EINVAL; 438 if (dev->curtuner == 0 && (f->frequency < 1400 || f->frequency > 1728)) 439 return -EINVAL; 440 if (dev->curtuner == 1 && (f->frequency < 8320 || f->frequency > 26400)) 441 return -EINVAL; 442 cadet_setfreq(dev, f->frequency); 443 return 0; 444 } 445 446 static int vidioc_queryctrl(struct file *file, void *priv, 447 struct v4l2_queryctrl *qc) 448 { 449 switch (qc->id) { 450 case V4L2_CID_AUDIO_MUTE: 451 return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1); 452 case V4L2_CID_AUDIO_VOLUME: 453 return v4l2_ctrl_query_fill(qc, 0, 0xff, 1, 0xff); 454 } 455 return -EINVAL; 456 } 457 458 static int vidioc_g_ctrl(struct file *file, void *priv, 459 struct v4l2_control *ctrl) 460 { 461 struct cadet *dev = video_drvdata(file); 462 463 switch (ctrl->id) { 464 case V4L2_CID_AUDIO_MUTE: /* TODO: Handle this correctly */ 465 ctrl->value = (cadet_getvol(dev) == 0); 466 break; 467 case V4L2_CID_AUDIO_VOLUME: 468 ctrl->value = cadet_getvol(dev); 469 break; 470 default: 471 return -EINVAL; 472 } 473 return 0; 474 } 475 476 static int vidioc_s_ctrl(struct file *file, void *priv, 477 struct v4l2_control *ctrl) 478 { 479 struct cadet *dev = video_drvdata(file); 480 481 switch (ctrl->id){ 482 case V4L2_CID_AUDIO_MUTE: /* TODO: Handle this correctly */ 483 if (ctrl->value) 484 cadet_setvol(dev, 0); 485 else 486 cadet_setvol(dev, 0xffff); 487 break; 488 case V4L2_CID_AUDIO_VOLUME: 489 cadet_setvol(dev, ctrl->value); 490 break; 491 default: 492 return -EINVAL; 493 } 494 return 0; 495 } 496 497 static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i) 498 { 499 *i = 0; 500 return 0; 501 } 502 503 static int vidioc_s_input(struct file *filp, void *priv, unsigned int i) 504 { 505 return i ? -EINVAL : 0; 506 } 507 508 static int vidioc_g_audio(struct file *file, void *priv, 509 struct v4l2_audio *a) 510 { 511 a->index = 0; 512 strlcpy(a->name, "Radio", sizeof(a->name)); 513 a->capability = V4L2_AUDCAP_STEREO; 514 return 0; 515 } 516 517 static int vidioc_s_audio(struct file *file, void *priv, 518 struct v4l2_audio *a) 519 { 520 return a->index ? -EINVAL : 0; 521 } 522 523 static int cadet_open(struct file *file) 524 { 525 struct cadet *dev = video_drvdata(file); 526 527 mutex_lock(&dev->lock); 528 dev->users++; 529 if (1 == dev->users) 530 init_waitqueue_head(&dev->read_queue); 531 mutex_unlock(&dev->lock); 532 return 0; 533 } 534 535 static int cadet_release(struct file *file) 536 { 537 struct cadet *dev = video_drvdata(file); 538 539 mutex_lock(&dev->lock); 540 dev->users--; 541 if (0 == dev->users) { 542 del_timer_sync(&dev->readtimer); 543 dev->rdsstat = 0; 544 } 545 mutex_unlock(&dev->lock); 546 return 0; 547 } 548 549 static unsigned int cadet_poll(struct file *file, struct poll_table_struct *wait) 550 { 551 struct cadet *dev = video_drvdata(file); 552 553 poll_wait(file, &dev->read_queue, wait); 554 if (dev->rdsin != dev->rdsout) 555 return POLLIN | POLLRDNORM; 556 return 0; 557 } 558 559 560 static const struct v4l2_file_operations cadet_fops = { 561 .owner = THIS_MODULE, 562 .open = cadet_open, 563 .release = cadet_release, 564 .read = cadet_read, 565 .unlocked_ioctl = video_ioctl2, 566 .poll = cadet_poll, 567 }; 568 569 static const struct v4l2_ioctl_ops cadet_ioctl_ops = { 570 .vidioc_querycap = vidioc_querycap, 571 .vidioc_g_tuner = vidioc_g_tuner, 572 .vidioc_s_tuner = vidioc_s_tuner, 573 .vidioc_g_frequency = vidioc_g_frequency, 574 .vidioc_s_frequency = vidioc_s_frequency, 575 .vidioc_queryctrl = vidioc_queryctrl, 576 .vidioc_g_ctrl = vidioc_g_ctrl, 577 .vidioc_s_ctrl = vidioc_s_ctrl, 578 .vidioc_g_audio = vidioc_g_audio, 579 .vidioc_s_audio = vidioc_s_audio, 580 .vidioc_g_input = vidioc_g_input, 581 .vidioc_s_input = vidioc_s_input, 582 }; 583 584 #ifdef CONFIG_PNP 585 586 static struct pnp_device_id cadet_pnp_devices[] = { 587 /* ADS Cadet AM/FM Radio Card */ 588 {.id = "MSM0c24", .driver_data = 0}, 589 {.id = ""} 590 }; 591 592 MODULE_DEVICE_TABLE(pnp, cadet_pnp_devices); 593 594 static int cadet_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) 595 { 596 if (!dev) 597 return -ENODEV; 598 /* only support one device */ 599 if (io > 0) 600 return -EBUSY; 601 602 if (!pnp_port_valid(dev, 0)) 603 return -ENODEV; 604 605 io = pnp_port_start(dev, 0); 606 607 printk(KERN_INFO "radio-cadet: PnP reports device at %#x\n", io); 608 609 return io; 610 } 611 612 static struct pnp_driver cadet_pnp_driver = { 613 .name = "radio-cadet", 614 .id_table = cadet_pnp_devices, 615 .probe = cadet_pnp_probe, 616 .remove = NULL, 617 }; 618 619 #else 620 static struct pnp_driver cadet_pnp_driver; 621 #endif 622 623 static void cadet_probe(struct cadet *dev) 624 { 625 static int iovals[8] = { 0x330, 0x332, 0x334, 0x336, 0x338, 0x33a, 0x33c, 0x33e }; 626 int i; 627 628 for (i = 0; i < 8; i++) { 629 dev->io = iovals[i]; 630 if (request_region(dev->io, 2, "cadet-probe")) { 631 cadet_setfreq(dev, 1410); 632 if (cadet_getfreq(dev) == 1410) { 633 release_region(dev->io, 2); 634 return; 635 } 636 release_region(dev->io, 2); 637 } 638 } 639 dev->io = -1; 640 } 641 642 /* 643 * io should only be set if the user has used something like 644 * isapnp (the userspace program) to initialize this card for us 645 */ 646 647 static int __init cadet_init(void) 648 { 649 struct cadet *dev = &cadet_card; 650 struct v4l2_device *v4l2_dev = &dev->v4l2_dev; 651 int res; 652 653 strlcpy(v4l2_dev->name, "cadet", sizeof(v4l2_dev->name)); 654 mutex_init(&dev->lock); 655 656 /* If a probe was requested then probe ISAPnP first (safest) */ 657 if (io < 0) 658 pnp_register_driver(&cadet_pnp_driver); 659 dev->io = io; 660 661 /* If that fails then probe unsafely if probe is requested */ 662 if (dev->io < 0) 663 cadet_probe(dev); 664 665 /* Else we bail out */ 666 if (dev->io < 0) { 667 #ifdef MODULE 668 v4l2_err(v4l2_dev, "you must set an I/O address with io=0x330, 0x332, 0x334,\n"); 669 v4l2_err(v4l2_dev, "0x336, 0x338, 0x33a, 0x33c or 0x33e\n"); 670 #endif 671 goto fail; 672 } 673 if (!request_region(dev->io, 2, "cadet")) 674 goto fail; 675 676 res = v4l2_device_register(NULL, v4l2_dev); 677 if (res < 0) { 678 release_region(dev->io, 2); 679 v4l2_err(v4l2_dev, "could not register v4l2_device\n"); 680 goto fail; 681 } 682 683 strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name)); 684 dev->vdev.v4l2_dev = v4l2_dev; 685 dev->vdev.fops = &cadet_fops; 686 dev->vdev.ioctl_ops = &cadet_ioctl_ops; 687 dev->vdev.release = video_device_release_empty; 688 video_set_drvdata(&dev->vdev, dev); 689 690 if (video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr) < 0) { 691 v4l2_device_unregister(v4l2_dev); 692 release_region(dev->io, 2); 693 goto fail; 694 } 695 v4l2_info(v4l2_dev, "ADS Cadet Radio Card at 0x%x\n", dev->io); 696 return 0; 697 fail: 698 pnp_unregister_driver(&cadet_pnp_driver); 699 return -ENODEV; 700 } 701 702 static void __exit cadet_exit(void) 703 { 704 struct cadet *dev = &cadet_card; 705 706 video_unregister_device(&dev->vdev); 707 v4l2_device_unregister(&dev->v4l2_dev); 708 release_region(dev->io, 2); 709 pnp_unregister_driver(&cadet_pnp_driver); 710 } 711 712 module_init(cadet_init); 713 module_exit(cadet_exit); 714 715