vmk80xx.c revision 3a229fd54db17f39ce14348c9de898b3671771ca
1/* 2 comedi/drivers/vmk80xx.c 3 Velleman USB Board Low-Level Driver 4 5 Copyright (C) 2009 Manuel Gebele <forensixs@gmx.de>, Germany 6 7 COMEDI - Linux Control and Measurement Device Interface 8 Copyright (C) 2000 David A. Schleef <ds@schleef.org> 9 10 This program is free software; you can redistribute it and/or modify 11 it under the terms of the GNU General Public License as published by 12 the Free Software Foundation; either version 2 of the License, or 13 (at your option) any later version. 14 15 This program is distributed in the hope that it will be useful, 16 but WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 GNU General Public License for more details. 19 20 You should have received a copy of the GNU General Public License 21 along with this program; if not, write to the Free Software 22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 23 24*/ 25/* 26Driver: vmk80xx 27Description: Velleman USB Board Low-Level Driver 28Devices: K8055/K8061 aka VM110/VM140 29Author: Manuel Gebele <forensixs@gmx.de> 30Updated: Sun, 10 May 2009 11:14:59 +0200 31Status: works 32 33Supports: 34 - analog input 35 - analog output 36 - digital input 37 - digital output 38 - counter 39 - pwm 40*/ 41/* 42Changelog: 43 440.8.81 -3- code completely rewritten (adjust driver logic) 450.8.81 -2- full support for K8061 460.8.81 -1- fix some mistaken among others the number of 47 supported boards and I/O handling 48 490.7.76 -4- renamed to vmk80xx 500.7.76 -3- detect K8061 (only theoretically supported) 510.7.76 -2- code completely rewritten (adjust driver logic) 520.7.76 -1- support for digital and counter subdevice 53*/ 54 55#include <linux/kernel.h> 56#include <linux/module.h> 57#include <linux/mutex.h> 58#include <linux/errno.h> 59#include <linux/input.h> 60#include <linux/slab.h> 61#include <linux/poll.h> 62#include <linux/usb.h> 63#include <linux/uaccess.h> 64 65#include "../comedidev.h" 66 67MODULE_AUTHOR("Manuel Gebele <forensixs@gmx.de>"); 68MODULE_DESCRIPTION("Velleman USB Board Low-Level Driver"); 69MODULE_SUPPORTED_DEVICE("K8055/K8061 aka VM110/VM140"); 70MODULE_VERSION("0.8.01"); 71MODULE_LICENSE("GPL"); 72 73enum { 74 DEVICE_VMK8055, 75 DEVICE_VMK8061 76}; 77 78static const struct usb_device_id vmk80xx_id_table[] = { 79 {USB_DEVICE(0x10cf, 0x5500), .driver_info = DEVICE_VMK8055}, 80 {USB_DEVICE(0x10cf, 0x5501), .driver_info = DEVICE_VMK8055}, 81 {USB_DEVICE(0x10cf, 0x5502), .driver_info = DEVICE_VMK8055}, 82 {USB_DEVICE(0x10cf, 0x5503), .driver_info = DEVICE_VMK8055}, 83 {USB_DEVICE(0x10cf, 0x8061), .driver_info = DEVICE_VMK8061}, 84 {USB_DEVICE(0x10cf, 0x8062), .driver_info = DEVICE_VMK8061}, 85 {USB_DEVICE(0x10cf, 0x8063), .driver_info = DEVICE_VMK8061}, 86 {USB_DEVICE(0x10cf, 0x8064), .driver_info = DEVICE_VMK8061}, 87 {USB_DEVICE(0x10cf, 0x8065), .driver_info = DEVICE_VMK8061}, 88 {USB_DEVICE(0x10cf, 0x8066), .driver_info = DEVICE_VMK8061}, 89 {USB_DEVICE(0x10cf, 0x8067), .driver_info = DEVICE_VMK8061}, 90 {USB_DEVICE(0x10cf, 0x8068), .driver_info = DEVICE_VMK8061}, 91 {} /* terminating entry */ 92}; 93 94MODULE_DEVICE_TABLE(usb, vmk80xx_id_table); 95 96#define VMK8055_DI_REG 0x00 97#define VMK8055_DO_REG 0x01 98#define VMK8055_AO1_REG 0x02 99#define VMK8055_AO2_REG 0x03 100#define VMK8055_AI1_REG 0x02 101#define VMK8055_AI2_REG 0x03 102#define VMK8055_CNT1_REG 0x04 103#define VMK8055_CNT2_REG 0x06 104 105#define VMK8061_CH_REG 0x01 106#define VMK8061_DI_REG 0x01 107#define VMK8061_DO_REG 0x01 108#define VMK8061_PWM_REG1 0x01 109#define VMK8061_PWM_REG2 0x02 110#define VMK8061_CNT_REG 0x02 111#define VMK8061_AO_REG 0x02 112#define VMK8061_AI_REG1 0x02 113#define VMK8061_AI_REG2 0x03 114 115#define VMK8055_CMD_RST 0x00 116#define VMK8055_CMD_DEB1_TIME 0x01 117#define VMK8055_CMD_DEB2_TIME 0x02 118#define VMK8055_CMD_RST_CNT1 0x03 119#define VMK8055_CMD_RST_CNT2 0x04 120#define VMK8055_CMD_WRT_AD 0x05 121 122#define VMK8061_CMD_RD_AI 0x00 123#define VMK8061_CMR_RD_ALL_AI 0x01 /* !non-active! */ 124#define VMK8061_CMD_SET_AO 0x02 125#define VMK8061_CMD_SET_ALL_AO 0x03 /* !non-active! */ 126#define VMK8061_CMD_OUT_PWM 0x04 127#define VMK8061_CMD_RD_DI 0x05 128#define VMK8061_CMD_DO 0x06 /* !non-active! */ 129#define VMK8061_CMD_CLR_DO 0x07 130#define VMK8061_CMD_SET_DO 0x08 131#define VMK8061_CMD_RD_CNT 0x09 /* TODO: completely pointless? */ 132#define VMK8061_CMD_RST_CNT 0x0a /* TODO: completely pointless? */ 133#define VMK8061_CMD_RD_VERSION 0x0b /* internal usage */ 134#define VMK8061_CMD_RD_JMP_STAT 0x0c /* TODO: not implemented yet */ 135#define VMK8061_CMD_RD_PWR_STAT 0x0d /* internal usage */ 136#define VMK8061_CMD_RD_DO 0x0e 137#define VMK8061_CMD_RD_AO 0x0f 138#define VMK8061_CMD_RD_PWM 0x10 139 140#define VMK80XX_MAX_BOARDS COMEDI_NUM_BOARD_MINORS 141 142#define TRANS_OUT_BUSY 1 143#define TRANS_IN_BUSY 2 144#define TRANS_IN_RUNNING 3 145 146#define IC3_VERSION (1 << 0) 147#define IC6_VERSION (1 << 1) 148 149#define URB_RCV_FLAG (1 << 0) 150#define URB_SND_FLAG (1 << 1) 151 152#define CONFIG_VMK80XX_DEBUG 153#undef CONFIG_VMK80XX_DEBUG 154 155#ifdef CONFIG_VMK80XX_DEBUG 156static int dbgvm = 1; 157#else 158static int dbgvm; 159#endif 160 161#ifdef CONFIG_COMEDI_DEBUG 162static int dbgcm = 1; 163#else 164static int dbgcm; 165#endif 166 167#define dbgvm(fmt, arg...) \ 168do { \ 169 if (dbgvm) \ 170 printk(KERN_DEBUG fmt, ##arg); \ 171} while (0) 172 173#define dbgcm(fmt, arg...) \ 174do { \ 175 if (dbgcm) \ 176 printk(KERN_DEBUG fmt, ##arg); \ 177} while (0) 178 179enum vmk80xx_model { 180 VMK8055_MODEL, 181 VMK8061_MODEL 182}; 183 184struct firmware_version { 185 unsigned char ic3_vers[32]; /* USB-Controller */ 186 unsigned char ic6_vers[32]; /* CPU */ 187}; 188 189static const struct comedi_lrange vmk8055_range = { 190 1, {UNI_RANGE(5)} 191}; 192 193static const struct comedi_lrange vmk8061_range = { 194 2, {UNI_RANGE(5), UNI_RANGE(10)} 195}; 196 197struct vmk80xx_board { 198 const char *name; 199 enum vmk80xx_model model; 200 const struct comedi_lrange *range; 201 __u8 ai_chans; 202 __le16 ai_bits; 203 __u8 ao_chans; 204 __le16 ao_bits; 205 __u8 di_chans; 206 __le16 di_bits; 207 __u8 do_chans; 208 __le16 do_bits; 209 __u8 cnt_chans; 210 __le16 cnt_bits; 211 __u8 pwm_chans; 212 __le16 pwm_bits; 213}; 214 215enum { 216 VMK80XX_SUBD_AI, 217 VMK80XX_SUBD_AO, 218 VMK80XX_SUBD_DI, 219 VMK80XX_SUBD_DO, 220 VMK80XX_SUBD_CNT, 221 VMK80XX_SUBD_PWM, 222}; 223 224struct vmk80xx_usb { 225 struct usb_device *udev; 226 struct usb_interface *intf; 227 struct usb_endpoint_descriptor *ep_rx; 228 struct usb_endpoint_descriptor *ep_tx; 229 struct usb_anchor rx_anchor; 230 struct usb_anchor tx_anchor; 231 struct vmk80xx_board board; 232 struct firmware_version fw; 233 struct semaphore limit_sem; 234 wait_queue_head_t read_wait; 235 wait_queue_head_t write_wait; 236 unsigned char *usb_rx_buf; 237 unsigned char *usb_tx_buf; 238 unsigned long flags; 239 int probed; 240 int attached; 241 int count; 242}; 243 244static struct vmk80xx_usb vmb[VMK80XX_MAX_BOARDS]; 245 246static DEFINE_MUTEX(glb_mutex); 247 248static void vmk80xx_tx_callback(struct urb *urb) 249{ 250 struct vmk80xx_usb *dev = urb->context; 251 int stat = urb->status; 252 253 dbgvm("vmk80xx: %s\n", __func__); 254 255 if (stat && !(stat == -ENOENT 256 || stat == -ECONNRESET || stat == -ESHUTDOWN)) 257 dbgcm("comedi#: vmk80xx: %s - nonzero urb status (%d)\n", 258 __func__, stat); 259 260 if (!test_bit(TRANS_OUT_BUSY, &dev->flags)) 261 return; 262 263 clear_bit(TRANS_OUT_BUSY, &dev->flags); 264 265 wake_up_interruptible(&dev->write_wait); 266} 267 268static void vmk80xx_rx_callback(struct urb *urb) 269{ 270 struct vmk80xx_usb *dev = urb->context; 271 int stat = urb->status; 272 273 dbgvm("vmk80xx: %s\n", __func__); 274 275 switch (stat) { 276 case 0: 277 break; 278 case -ENOENT: 279 case -ECONNRESET: 280 case -ESHUTDOWN: 281 break; 282 default: 283 dbgcm("comedi#: vmk80xx: %s - nonzero urb status (%d)\n", 284 __func__, stat); 285 goto resubmit; 286 } 287 288 goto exit; 289resubmit: 290 if (test_bit(TRANS_IN_RUNNING, &dev->flags) && dev->intf) { 291 usb_anchor_urb(urb, &dev->rx_anchor); 292 293 if (!usb_submit_urb(urb, GFP_KERNEL)) 294 goto exit; 295 296 err("comedi#: vmk80xx: %s - submit urb failed\n", __func__); 297 298 usb_unanchor_urb(urb); 299 } 300exit: 301 clear_bit(TRANS_IN_BUSY, &dev->flags); 302 303 wake_up_interruptible(&dev->read_wait); 304} 305 306static int vmk80xx_check_data_link(struct vmk80xx_usb *dev) 307{ 308 unsigned int tx_pipe; 309 unsigned int rx_pipe; 310 unsigned char tx[1]; 311 unsigned char rx[2]; 312 313 dbgvm("vmk80xx: %s\n", __func__); 314 315 tx_pipe = usb_sndbulkpipe(dev->udev, 0x01); 316 rx_pipe = usb_rcvbulkpipe(dev->udev, 0x81); 317 318 tx[0] = VMK8061_CMD_RD_PWR_STAT; 319 320 /* 321 * Check that IC6 (PIC16F871) is powered and 322 * running and the data link between IC3 and 323 * IC6 is working properly 324 */ 325 usb_bulk_msg(dev->udev, tx_pipe, tx, 1, NULL, dev->ep_tx->bInterval); 326 usb_bulk_msg(dev->udev, rx_pipe, rx, 2, NULL, HZ * 10); 327 328 return (int)rx[1]; 329} 330 331static void vmk80xx_read_eeprom(struct vmk80xx_usb *dev, int flag) 332{ 333 unsigned int tx_pipe; 334 unsigned int rx_pipe; 335 unsigned char tx[1]; 336 unsigned char rx[64]; 337 int cnt; 338 339 dbgvm("vmk80xx: %s\n", __func__); 340 341 tx_pipe = usb_sndbulkpipe(dev->udev, 0x01); 342 rx_pipe = usb_rcvbulkpipe(dev->udev, 0x81); 343 344 tx[0] = VMK8061_CMD_RD_VERSION; 345 346 /* 347 * Read the firmware version info of IC3 and 348 * IC6 from the internal EEPROM of the IC 349 */ 350 usb_bulk_msg(dev->udev, tx_pipe, tx, 1, NULL, dev->ep_tx->bInterval); 351 usb_bulk_msg(dev->udev, rx_pipe, rx, 64, &cnt, HZ * 10); 352 353 rx[cnt] = '\0'; 354 355 if (flag & IC3_VERSION) 356 strncpy(dev->fw.ic3_vers, rx + 1, 24); 357 else /* IC6_VERSION */ 358 strncpy(dev->fw.ic6_vers, rx + 25, 24); 359} 360 361static int vmk80xx_reset_device(struct vmk80xx_usb *dev) 362{ 363 struct urb *urb; 364 unsigned int tx_pipe; 365 int ival; 366 size_t size; 367 368 dbgvm("vmk80xx: %s\n", __func__); 369 370 urb = usb_alloc_urb(0, GFP_KERNEL); 371 if (!urb) 372 return -ENOMEM; 373 374 tx_pipe = usb_sndintpipe(dev->udev, 0x01); 375 376 ival = dev->ep_tx->bInterval; 377 size = le16_to_cpu(dev->ep_tx->wMaxPacketSize); 378 379 dev->usb_tx_buf[0] = VMK8055_CMD_RST; 380 dev->usb_tx_buf[1] = 0x00; 381 dev->usb_tx_buf[2] = 0x00; 382 dev->usb_tx_buf[3] = 0x00; 383 dev->usb_tx_buf[4] = 0x00; 384 dev->usb_tx_buf[5] = 0x00; 385 dev->usb_tx_buf[6] = 0x00; 386 dev->usb_tx_buf[7] = 0x00; 387 388 usb_fill_int_urb(urb, dev->udev, tx_pipe, dev->usb_tx_buf, 389 size, vmk80xx_tx_callback, dev, ival); 390 391 usb_anchor_urb(urb, &dev->tx_anchor); 392 393 return usb_submit_urb(urb, GFP_KERNEL); 394} 395 396static void vmk80xx_build_int_urb(struct urb *urb, int flag) 397{ 398 struct vmk80xx_usb *dev = urb->context; 399 __u8 rx_addr; 400 __u8 tx_addr; 401 unsigned int pipe; 402 unsigned char *buf; 403 size_t size; 404 void (*callback) (struct urb *); 405 int ival; 406 407 dbgvm("vmk80xx: %s\n", __func__); 408 409 if (flag & URB_RCV_FLAG) { 410 rx_addr = dev->ep_rx->bEndpointAddress; 411 pipe = usb_rcvintpipe(dev->udev, rx_addr); 412 buf = dev->usb_rx_buf; 413 size = le16_to_cpu(dev->ep_rx->wMaxPacketSize); 414 callback = vmk80xx_rx_callback; 415 ival = dev->ep_rx->bInterval; 416 } else { /* URB_SND_FLAG */ 417 tx_addr = dev->ep_tx->bEndpointAddress; 418 pipe = usb_sndintpipe(dev->udev, tx_addr); 419 buf = dev->usb_tx_buf; 420 size = le16_to_cpu(dev->ep_tx->wMaxPacketSize); 421 callback = vmk80xx_tx_callback; 422 ival = dev->ep_tx->bInterval; 423 } 424 425 usb_fill_int_urb(urb, dev->udev, pipe, buf, size, callback, dev, ival); 426} 427 428static void vmk80xx_do_bulk_msg(struct vmk80xx_usb *dev) 429{ 430 __u8 tx_addr; 431 __u8 rx_addr; 432 unsigned int tx_pipe; 433 unsigned int rx_pipe; 434 size_t size; 435 436 dbgvm("vmk80xx: %s\n", __func__); 437 438 set_bit(TRANS_IN_BUSY, &dev->flags); 439 set_bit(TRANS_OUT_BUSY, &dev->flags); 440 441 tx_addr = dev->ep_tx->bEndpointAddress; 442 rx_addr = dev->ep_rx->bEndpointAddress; 443 tx_pipe = usb_sndbulkpipe(dev->udev, tx_addr); 444 rx_pipe = usb_rcvbulkpipe(dev->udev, rx_addr); 445 446 /* 447 * The max packet size attributes of the K8061 448 * input/output endpoints are identical 449 */ 450 size = le16_to_cpu(dev->ep_tx->wMaxPacketSize); 451 452 usb_bulk_msg(dev->udev, tx_pipe, dev->usb_tx_buf, 453 size, NULL, dev->ep_tx->bInterval); 454 usb_bulk_msg(dev->udev, rx_pipe, dev->usb_rx_buf, size, NULL, HZ * 10); 455 456 clear_bit(TRANS_OUT_BUSY, &dev->flags); 457 clear_bit(TRANS_IN_BUSY, &dev->flags); 458} 459 460static int vmk80xx_read_packet(struct vmk80xx_usb *dev) 461{ 462 struct urb *urb; 463 int retval; 464 465 dbgvm("vmk80xx: %s\n", __func__); 466 467 if (!dev->intf) 468 return -ENODEV; 469 470 /* Only useful for interrupt transfers */ 471 if (test_bit(TRANS_IN_BUSY, &dev->flags)) 472 if (wait_event_interruptible(dev->read_wait, 473 !test_bit(TRANS_IN_BUSY, 474 &dev->flags))) 475 return -ERESTART; 476 477 if (dev->board.model == VMK8061_MODEL) { 478 vmk80xx_do_bulk_msg(dev); 479 480 return 0; 481 } 482 483 urb = usb_alloc_urb(0, GFP_KERNEL); 484 if (!urb) 485 return -ENOMEM; 486 487 urb->context = dev; 488 vmk80xx_build_int_urb(urb, URB_RCV_FLAG); 489 490 set_bit(TRANS_IN_RUNNING, &dev->flags); 491 set_bit(TRANS_IN_BUSY, &dev->flags); 492 493 usb_anchor_urb(urb, &dev->rx_anchor); 494 495 retval = usb_submit_urb(urb, GFP_KERNEL); 496 if (!retval) 497 goto exit; 498 499 clear_bit(TRANS_IN_RUNNING, &dev->flags); 500 usb_unanchor_urb(urb); 501 502exit: 503 usb_free_urb(urb); 504 505 return retval; 506} 507 508static int vmk80xx_write_packet(struct vmk80xx_usb *dev, int cmd) 509{ 510 struct urb *urb; 511 int retval; 512 513 dbgvm("vmk80xx: %s\n", __func__); 514 515 if (!dev->intf) 516 return -ENODEV; 517 518 if (test_bit(TRANS_OUT_BUSY, &dev->flags)) 519 if (wait_event_interruptible(dev->write_wait, 520 !test_bit(TRANS_OUT_BUSY, 521 &dev->flags))) 522 return -ERESTART; 523 524 if (dev->board.model == VMK8061_MODEL) { 525 dev->usb_tx_buf[0] = cmd; 526 vmk80xx_do_bulk_msg(dev); 527 528 return 0; 529 } 530 531 urb = usb_alloc_urb(0, GFP_KERNEL); 532 if (!urb) 533 return -ENOMEM; 534 535 urb->context = dev; 536 vmk80xx_build_int_urb(urb, URB_SND_FLAG); 537 538 set_bit(TRANS_OUT_BUSY, &dev->flags); 539 540 usb_anchor_urb(urb, &dev->tx_anchor); 541 542 dev->usb_tx_buf[0] = cmd; 543 544 retval = usb_submit_urb(urb, GFP_KERNEL); 545 if (!retval) 546 goto exit; 547 548 clear_bit(TRANS_OUT_BUSY, &dev->flags); 549 usb_unanchor_urb(urb); 550 551exit: 552 usb_free_urb(urb); 553 554 return retval; 555} 556 557#define DIR_IN 1 558#define DIR_OUT 2 559 560#define rudimentary_check(dir) \ 561do { \ 562 if (!dev) \ 563 return -EFAULT; \ 564 if (!dev->probed) \ 565 return -ENODEV; \ 566 if (!dev->attached) \ 567 return -ENODEV; \ 568 if ((dir) & DIR_IN) { \ 569 if (test_bit(TRANS_IN_BUSY, &dev->flags)) \ 570 return -EBUSY; \ 571 } else { /* DIR_OUT */ \ 572 if (test_bit(TRANS_OUT_BUSY, &dev->flags)) \ 573 return -EBUSY; \ 574 } \ 575} while (0) 576 577static int vmk80xx_ai_rinsn(struct comedi_device *cdev, 578 struct comedi_subdevice *s, 579 struct comedi_insn *insn, unsigned int *data) 580{ 581 struct vmk80xx_usb *dev = cdev->private; 582 int chan; 583 int reg[2]; 584 int n; 585 586 dbgvm("vmk80xx: %s\n", __func__); 587 588 rudimentary_check(DIR_IN); 589 590 down(&dev->limit_sem); 591 chan = CR_CHAN(insn->chanspec); 592 593 switch (dev->board.model) { 594 case VMK8055_MODEL: 595 if (!chan) 596 reg[0] = VMK8055_AI1_REG; 597 else 598 reg[0] = VMK8055_AI2_REG; 599 break; 600 case VMK8061_MODEL: 601 reg[0] = VMK8061_AI_REG1; 602 reg[1] = VMK8061_AI_REG2; 603 dev->usb_tx_buf[0] = VMK8061_CMD_RD_AI; 604 dev->usb_tx_buf[VMK8061_CH_REG] = chan; 605 break; 606 } 607 608 for (n = 0; n < insn->n; n++) { 609 if (vmk80xx_read_packet(dev)) 610 break; 611 612 if (dev->board.model == VMK8055_MODEL) { 613 data[n] = dev->usb_rx_buf[reg[0]]; 614 continue; 615 } 616 617 /* VMK8061_MODEL */ 618 data[n] = dev->usb_rx_buf[reg[0]] + 256 * 619 dev->usb_rx_buf[reg[1]]; 620 } 621 622 up(&dev->limit_sem); 623 624 return n; 625} 626 627static int vmk80xx_ao_winsn(struct comedi_device *cdev, 628 struct comedi_subdevice *s, 629 struct comedi_insn *insn, unsigned int *data) 630{ 631 struct vmk80xx_usb *dev = cdev->private; 632 int chan; 633 int cmd; 634 int reg; 635 int n; 636 637 dbgvm("vmk80xx: %s\n", __func__); 638 639 rudimentary_check(DIR_OUT); 640 641 down(&dev->limit_sem); 642 chan = CR_CHAN(insn->chanspec); 643 644 switch (dev->board.model) { 645 case VMK8055_MODEL: 646 cmd = VMK8055_CMD_WRT_AD; 647 if (!chan) 648 reg = VMK8055_AO1_REG; 649 else 650 reg = VMK8055_AO2_REG; 651 break; 652 default: /* NOTE: avoid compiler warnings */ 653 cmd = VMK8061_CMD_SET_AO; 654 reg = VMK8061_AO_REG; 655 dev->usb_tx_buf[VMK8061_CH_REG] = chan; 656 break; 657 } 658 659 for (n = 0; n < insn->n; n++) { 660 dev->usb_tx_buf[reg] = data[n]; 661 662 if (vmk80xx_write_packet(dev, cmd)) 663 break; 664 } 665 666 up(&dev->limit_sem); 667 668 return n; 669} 670 671static int vmk80xx_ao_rinsn(struct comedi_device *cdev, 672 struct comedi_subdevice *s, 673 struct comedi_insn *insn, unsigned int *data) 674{ 675 struct vmk80xx_usb *dev = cdev->private; 676 int chan; 677 int reg; 678 int n; 679 680 dbgvm("vmk80xx: %s\n", __func__); 681 682 rudimentary_check(DIR_IN); 683 684 down(&dev->limit_sem); 685 chan = CR_CHAN(insn->chanspec); 686 687 reg = VMK8061_AO_REG - 1; 688 689 dev->usb_tx_buf[0] = VMK8061_CMD_RD_AO; 690 691 for (n = 0; n < insn->n; n++) { 692 if (vmk80xx_read_packet(dev)) 693 break; 694 695 data[n] = dev->usb_rx_buf[reg + chan]; 696 } 697 698 up(&dev->limit_sem); 699 700 return n; 701} 702 703static int vmk80xx_di_rinsn(struct comedi_device *cdev, 704 struct comedi_subdevice *s, 705 struct comedi_insn *insn, unsigned int *data) 706{ 707 struct vmk80xx_usb *dev = cdev->private; 708 int chan; 709 unsigned char *rx_buf; 710 int reg; 711 int inp; 712 int n; 713 714 dbgvm("vmk80xx: %s\n", __func__); 715 716 rudimentary_check(DIR_IN); 717 718 down(&dev->limit_sem); 719 chan = CR_CHAN(insn->chanspec); 720 721 rx_buf = dev->usb_rx_buf; 722 723 if (dev->board.model == VMK8061_MODEL) { 724 reg = VMK8061_DI_REG; 725 dev->usb_tx_buf[0] = VMK8061_CMD_RD_DI; 726 } else { 727 reg = VMK8055_DI_REG; 728 } 729 for (n = 0; n < insn->n; n++) { 730 if (vmk80xx_read_packet(dev)) 731 break; 732 733 if (dev->board.model == VMK8055_MODEL) 734 inp = (((rx_buf[reg] >> 4) & 0x03) | 735 ((rx_buf[reg] << 2) & 0x04) | 736 ((rx_buf[reg] >> 3) & 0x18)); 737 else 738 inp = rx_buf[reg]; 739 740 data[n] = ((inp & (1 << chan)) > 0); 741 } 742 743 up(&dev->limit_sem); 744 745 return n; 746} 747 748static int vmk80xx_do_winsn(struct comedi_device *cdev, 749 struct comedi_subdevice *s, 750 struct comedi_insn *insn, unsigned int *data) 751{ 752 struct vmk80xx_usb *dev = cdev->private; 753 int chan; 754 unsigned char *tx_buf; 755 int reg; 756 int cmd; 757 int n; 758 759 dbgvm("vmk80xx: %s\n", __func__); 760 761 rudimentary_check(DIR_OUT); 762 763 down(&dev->limit_sem); 764 chan = CR_CHAN(insn->chanspec); 765 766 tx_buf = dev->usb_tx_buf; 767 768 for (n = 0; n < insn->n; n++) { 769 if (dev->board.model == VMK8055_MODEL) { 770 reg = VMK8055_DO_REG; 771 cmd = VMK8055_CMD_WRT_AD; 772 if (data[n] == 1) 773 tx_buf[reg] |= (1 << chan); 774 else 775 tx_buf[reg] ^= (1 << chan); 776 } else { /* VMK8061_MODEL */ 777 reg = VMK8061_DO_REG; 778 if (data[n] == 1) { 779 cmd = VMK8061_CMD_SET_DO; 780 tx_buf[reg] = 1 << chan; 781 } else { 782 cmd = VMK8061_CMD_CLR_DO; 783 tx_buf[reg] = 0xff - (1 << chan); 784 } 785 } 786 787 if (vmk80xx_write_packet(dev, cmd)) 788 break; 789 } 790 791 up(&dev->limit_sem); 792 793 return n; 794} 795 796static int vmk80xx_do_rinsn(struct comedi_device *cdev, 797 struct comedi_subdevice *s, 798 struct comedi_insn *insn, unsigned int *data) 799{ 800 struct vmk80xx_usb *dev = cdev->private; 801 int chan; 802 int reg; 803 int mask; 804 int n; 805 806 dbgvm("vmk80xx: %s\n", __func__); 807 808 rudimentary_check(DIR_IN); 809 810 down(&dev->limit_sem); 811 chan = CR_CHAN(insn->chanspec); 812 813 reg = VMK8061_DO_REG; 814 mask = 1 << chan; 815 816 dev->usb_tx_buf[0] = VMK8061_CMD_RD_DO; 817 818 for (n = 0; n < insn->n; n++) { 819 if (vmk80xx_read_packet(dev)) 820 break; 821 822 data[n] = (dev->usb_rx_buf[reg] & mask) >> chan; 823 } 824 825 up(&dev->limit_sem); 826 827 return n; 828} 829 830static int vmk80xx_cnt_rinsn(struct comedi_device *cdev, 831 struct comedi_subdevice *s, 832 struct comedi_insn *insn, unsigned int *data) 833{ 834 struct vmk80xx_usb *dev = cdev->private; 835 int chan; 836 int reg[2]; 837 int n; 838 839 dbgvm("vmk80xx: %s\n", __func__); 840 841 rudimentary_check(DIR_IN); 842 843 down(&dev->limit_sem); 844 chan = CR_CHAN(insn->chanspec); 845 846 switch (dev->board.model) { 847 case VMK8055_MODEL: 848 if (!chan) 849 reg[0] = VMK8055_CNT1_REG; 850 else 851 reg[0] = VMK8055_CNT2_REG; 852 break; 853 case VMK8061_MODEL: 854 reg[0] = VMK8061_CNT_REG; 855 reg[1] = VMK8061_CNT_REG; 856 dev->usb_tx_buf[0] = VMK8061_CMD_RD_CNT; 857 break; 858 } 859 860 for (n = 0; n < insn->n; n++) { 861 if (vmk80xx_read_packet(dev)) 862 break; 863 864 if (dev->board.model == VMK8055_MODEL) 865 data[n] = dev->usb_rx_buf[reg[0]]; 866 else /* VMK8061_MODEL */ 867 data[n] = dev->usb_rx_buf[reg[0] * (chan + 1) + 1] 868 + 256 * dev->usb_rx_buf[reg[1] * 2 + 2]; 869 } 870 871 up(&dev->limit_sem); 872 873 return n; 874} 875 876static int vmk80xx_cnt_cinsn(struct comedi_device *cdev, 877 struct comedi_subdevice *s, 878 struct comedi_insn *insn, unsigned int *data) 879{ 880 struct vmk80xx_usb *dev = cdev->private; 881 unsigned int insn_cmd; 882 int chan; 883 int cmd; 884 int reg; 885 int n; 886 887 dbgvm("vmk80xx: %s\n", __func__); 888 889 rudimentary_check(DIR_OUT); 890 891 down(&dev->limit_sem); 892 893 insn_cmd = data[0]; 894 if (insn_cmd != INSN_CONFIG_RESET && insn_cmd != GPCT_RESET) 895 return -EINVAL; 896 897 chan = CR_CHAN(insn->chanspec); 898 899 if (dev->board.model == VMK8055_MODEL) { 900 if (!chan) { 901 cmd = VMK8055_CMD_RST_CNT1; 902 reg = VMK8055_CNT1_REG; 903 } else { 904 cmd = VMK8055_CMD_RST_CNT2; 905 reg = VMK8055_CNT2_REG; 906 } 907 908 dev->usb_tx_buf[reg] = 0x00; 909 } else { 910 cmd = VMK8061_CMD_RST_CNT; 911 } 912 913 for (n = 0; n < insn->n; n++) 914 if (vmk80xx_write_packet(dev, cmd)) 915 break; 916 917 up(&dev->limit_sem); 918 919 return n; 920} 921 922static int vmk80xx_cnt_winsn(struct comedi_device *cdev, 923 struct comedi_subdevice *s, 924 struct comedi_insn *insn, unsigned int *data) 925{ 926 struct vmk80xx_usb *dev = cdev->private; 927 unsigned long debtime; 928 unsigned long val; 929 int chan; 930 int cmd; 931 int n; 932 933 dbgvm("vmk80xx: %s\n", __func__); 934 935 rudimentary_check(DIR_OUT); 936 937 down(&dev->limit_sem); 938 chan = CR_CHAN(insn->chanspec); 939 940 if (!chan) 941 cmd = VMK8055_CMD_DEB1_TIME; 942 else 943 cmd = VMK8055_CMD_DEB2_TIME; 944 945 for (n = 0; n < insn->n; n++) { 946 debtime = data[n]; 947 if (debtime == 0) 948 debtime = 1; 949 950 /* TODO: Prevent overflows */ 951 if (debtime > 7450) 952 debtime = 7450; 953 954 val = int_sqrt(debtime * 1000 / 115); 955 if (((val + 1) * val) < debtime * 1000 / 115) 956 val += 1; 957 958 dev->usb_tx_buf[6 + chan] = val; 959 960 if (vmk80xx_write_packet(dev, cmd)) 961 break; 962 } 963 964 up(&dev->limit_sem); 965 966 return n; 967} 968 969static int vmk80xx_pwm_rinsn(struct comedi_device *cdev, 970 struct comedi_subdevice *s, 971 struct comedi_insn *insn, unsigned int *data) 972{ 973 struct vmk80xx_usb *dev = cdev->private; 974 int reg[2]; 975 int n; 976 977 dbgvm("vmk80xx: %s\n", __func__); 978 979 rudimentary_check(DIR_IN); 980 981 down(&dev->limit_sem); 982 983 reg[0] = VMK8061_PWM_REG1; 984 reg[1] = VMK8061_PWM_REG2; 985 986 dev->usb_tx_buf[0] = VMK8061_CMD_RD_PWM; 987 988 for (n = 0; n < insn->n; n++) { 989 if (vmk80xx_read_packet(dev)) 990 break; 991 992 data[n] = dev->usb_rx_buf[reg[0]] + 4 * dev->usb_rx_buf[reg[1]]; 993 } 994 995 up(&dev->limit_sem); 996 997 return n; 998} 999 1000static int vmk80xx_pwm_winsn(struct comedi_device *cdev, 1001 struct comedi_subdevice *s, 1002 struct comedi_insn *insn, unsigned int *data) 1003{ 1004 struct vmk80xx_usb *dev = cdev->private; 1005 unsigned char *tx_buf; 1006 int reg[2]; 1007 int cmd; 1008 int n; 1009 1010 dbgvm("vmk80xx: %s\n", __func__); 1011 1012 rudimentary_check(DIR_OUT); 1013 1014 down(&dev->limit_sem); 1015 1016 tx_buf = dev->usb_tx_buf; 1017 1018 reg[0] = VMK8061_PWM_REG1; 1019 reg[1] = VMK8061_PWM_REG2; 1020 1021 cmd = VMK8061_CMD_OUT_PWM; 1022 1023 /* 1024 * The followin piece of code was translated from the inline 1025 * assembler code in the DLL source code. 1026 * 1027 * asm 1028 * mov eax, k ; k is the value (data[n]) 1029 * and al, 03h ; al are the lower 8 bits of eax 1030 * mov lo, al ; lo is the low part (tx_buf[reg[0]]) 1031 * mov eax, k 1032 * shr eax, 2 ; right shift eax register by 2 1033 * mov hi, al ; hi is the high part (tx_buf[reg[1]]) 1034 * end; 1035 */ 1036 for (n = 0; n < insn->n; n++) { 1037 tx_buf[reg[0]] = (unsigned char)(data[n] & 0x03); 1038 tx_buf[reg[1]] = (unsigned char)(data[n] >> 2) & 0xff; 1039 1040 if (vmk80xx_write_packet(dev, cmd)) 1041 break; 1042 } 1043 1044 up(&dev->limit_sem); 1045 1046 return n; 1047} 1048 1049static int vmk80xx_attach(struct comedi_device *cdev, 1050 struct comedi_devconfig *it) 1051{ 1052 int i; 1053 struct vmk80xx_usb *dev; 1054 int n_subd; 1055 struct comedi_subdevice *s; 1056 int minor; 1057 1058 dbgvm("vmk80xx: %s\n", __func__); 1059 1060 mutex_lock(&glb_mutex); 1061 1062 for (i = 0; i < VMK80XX_MAX_BOARDS; i++) 1063 if (vmb[i].probed && !vmb[i].attached) 1064 break; 1065 1066 if (i == VMK80XX_MAX_BOARDS) { 1067 mutex_unlock(&glb_mutex); 1068 return -ENODEV; 1069 } 1070 1071 dev = &vmb[i]; 1072 1073 down(&dev->limit_sem); 1074 1075 cdev->board_name = dev->board.name; 1076 cdev->private = dev; 1077 1078 if (dev->board.model == VMK8055_MODEL) 1079 n_subd = 5; 1080 else 1081 n_subd = 6; 1082 1083 if (alloc_subdevices(cdev, n_subd) < 0) { 1084 up(&dev->limit_sem); 1085 mutex_unlock(&glb_mutex); 1086 return -ENOMEM; 1087 } 1088 1089 /* Analog input subdevice */ 1090 s = cdev->subdevices + VMK80XX_SUBD_AI; 1091 s->type = COMEDI_SUBD_AI; 1092 s->subdev_flags = SDF_READABLE | SDF_GROUND; 1093 s->n_chan = dev->board.ai_chans; 1094 s->maxdata = (1 << dev->board.ai_bits) - 1; 1095 s->range_table = dev->board.range; 1096 s->insn_read = vmk80xx_ai_rinsn; 1097 1098 /* Analog output subdevice */ 1099 s = cdev->subdevices + VMK80XX_SUBD_AO; 1100 s->type = COMEDI_SUBD_AO; 1101 s->subdev_flags = SDF_WRITEABLE | SDF_GROUND; 1102 s->n_chan = dev->board.ao_chans; 1103 s->maxdata = (1 << dev->board.ao_bits) - 1; 1104 s->range_table = dev->board.range; 1105 s->insn_write = vmk80xx_ao_winsn; 1106 1107 if (dev->board.model == VMK8061_MODEL) { 1108 s->subdev_flags |= SDF_READABLE; 1109 s->insn_read = vmk80xx_ao_rinsn; 1110 } 1111 1112 /* Digital input subdevice */ 1113 s = cdev->subdevices + VMK80XX_SUBD_DI; 1114 s->type = COMEDI_SUBD_DI; 1115 s->subdev_flags = SDF_READABLE | SDF_GROUND; 1116 s->n_chan = dev->board.di_chans; 1117 s->maxdata = (1 << dev->board.di_bits) - 1; 1118 s->insn_read = vmk80xx_di_rinsn; 1119 1120 /* Digital output subdevice */ 1121 s = cdev->subdevices + VMK80XX_SUBD_DO; 1122 s->type = COMEDI_SUBD_DO; 1123 s->subdev_flags = SDF_WRITEABLE | SDF_GROUND; 1124 s->n_chan = dev->board.do_chans; 1125 s->maxdata = (1 << dev->board.do_bits) - 1; 1126 s->insn_write = vmk80xx_do_winsn; 1127 1128 if (dev->board.model == VMK8061_MODEL) { 1129 s->subdev_flags |= SDF_READABLE; 1130 s->insn_read = vmk80xx_do_rinsn; 1131 } 1132 1133 /* Counter subdevice */ 1134 s = cdev->subdevices + VMK80XX_SUBD_CNT; 1135 s->type = COMEDI_SUBD_COUNTER; 1136 s->subdev_flags = SDF_READABLE; 1137 s->n_chan = dev->board.cnt_chans; 1138 s->insn_read = vmk80xx_cnt_rinsn; 1139 s->insn_config = vmk80xx_cnt_cinsn; 1140 1141 if (dev->board.model == VMK8055_MODEL) { 1142 s->subdev_flags |= SDF_WRITEABLE; 1143 s->maxdata = (1 << dev->board.cnt_bits) - 1; 1144 s->insn_write = vmk80xx_cnt_winsn; 1145 } 1146 1147 /* PWM subdevice */ 1148 if (dev->board.model == VMK8061_MODEL) { 1149 s = cdev->subdevices + VMK80XX_SUBD_PWM; 1150 s->type = COMEDI_SUBD_PWM; 1151 s->subdev_flags = SDF_READABLE | SDF_WRITEABLE; 1152 s->n_chan = dev->board.pwm_chans; 1153 s->maxdata = (1 << dev->board.pwm_bits) - 1; 1154 s->insn_read = vmk80xx_pwm_rinsn; 1155 s->insn_write = vmk80xx_pwm_winsn; 1156 } 1157 1158 dev->attached = 1; 1159 1160 minor = cdev->minor; 1161 1162 printk(KERN_INFO 1163 "comedi%d: vmk80xx: board #%d [%s] attached to comedi\n", 1164 minor, dev->count, dev->board.name); 1165 1166 up(&dev->limit_sem); 1167 mutex_unlock(&glb_mutex); 1168 1169 return 0; 1170} 1171 1172static int vmk80xx_detach(struct comedi_device *cdev) 1173{ 1174 struct vmk80xx_usb *dev; 1175 int minor; 1176 1177 dbgvm("vmk80xx: %s\n", __func__); 1178 1179 if (!cdev) 1180 return -EFAULT; 1181 1182 dev = cdev->private; 1183 if (!dev) 1184 return -EFAULT; 1185 1186 down(&dev->limit_sem); 1187 1188 cdev->private = NULL; 1189 dev->attached = 0; 1190 1191 minor = cdev->minor; 1192 1193 printk(KERN_INFO 1194 "comedi%d: vmk80xx: board #%d [%s] detached from comedi\n", 1195 minor, dev->count, dev->board.name); 1196 1197 up(&dev->limit_sem); 1198 1199 return 0; 1200} 1201 1202static int vmk80xx_probe(struct usb_interface *intf, 1203 const struct usb_device_id *id) 1204{ 1205 int i; 1206 struct vmk80xx_usb *dev; 1207 struct usb_host_interface *iface_desc; 1208 struct usb_endpoint_descriptor *ep_desc; 1209 size_t size; 1210 1211 dbgvm("vmk80xx: %s\n", __func__); 1212 1213 mutex_lock(&glb_mutex); 1214 1215 for (i = 0; i < VMK80XX_MAX_BOARDS; i++) 1216 if (!vmb[i].probed) 1217 break; 1218 1219 if (i == VMK80XX_MAX_BOARDS) { 1220 mutex_unlock(&glb_mutex); 1221 return -EMFILE; 1222 } 1223 1224 dev = &vmb[i]; 1225 1226 memset(dev, 0x00, sizeof(struct vmk80xx_usb)); 1227 dev->count = i; 1228 1229 iface_desc = intf->cur_altsetting; 1230 if (iface_desc->desc.bNumEndpoints != 2) 1231 goto error; 1232 1233 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { 1234 ep_desc = &iface_desc->endpoint[i].desc; 1235 1236 if (usb_endpoint_is_int_in(ep_desc)) { 1237 dev->ep_rx = ep_desc; 1238 continue; 1239 } 1240 1241 if (usb_endpoint_is_int_out(ep_desc)) { 1242 dev->ep_tx = ep_desc; 1243 continue; 1244 } 1245 1246 if (usb_endpoint_is_bulk_in(ep_desc)) { 1247 dev->ep_rx = ep_desc; 1248 continue; 1249 } 1250 1251 if (usb_endpoint_is_bulk_out(ep_desc)) { 1252 dev->ep_tx = ep_desc; 1253 continue; 1254 } 1255 } 1256 1257 if (!dev->ep_rx || !dev->ep_tx) 1258 goto error; 1259 1260 size = le16_to_cpu(dev->ep_rx->wMaxPacketSize); 1261 dev->usb_rx_buf = kmalloc(size, GFP_KERNEL); 1262 if (!dev->usb_rx_buf) { 1263 mutex_unlock(&glb_mutex); 1264 return -ENOMEM; 1265 } 1266 1267 size = le16_to_cpu(dev->ep_tx->wMaxPacketSize); 1268 dev->usb_tx_buf = kmalloc(size, GFP_KERNEL); 1269 if (!dev->usb_tx_buf) { 1270 kfree(dev->usb_rx_buf); 1271 mutex_unlock(&glb_mutex); 1272 return -ENOMEM; 1273 } 1274 1275 dev->udev = interface_to_usbdev(intf); 1276 dev->intf = intf; 1277 1278 sema_init(&dev->limit_sem, 8); 1279 init_waitqueue_head(&dev->read_wait); 1280 init_waitqueue_head(&dev->write_wait); 1281 1282 init_usb_anchor(&dev->rx_anchor); 1283 init_usb_anchor(&dev->tx_anchor); 1284 1285 usb_set_intfdata(intf, dev); 1286 1287 switch (id->driver_info) { 1288 case DEVICE_VMK8055: 1289 dev->board.name = "K8055 (VM110)"; 1290 dev->board.model = VMK8055_MODEL; 1291 dev->board.range = &vmk8055_range; 1292 dev->board.ai_chans = 2; 1293 dev->board.ai_bits = 8; 1294 dev->board.ao_chans = 2; 1295 dev->board.ao_bits = 8; 1296 dev->board.di_chans = 5; 1297 dev->board.di_bits = 1; 1298 dev->board.do_chans = 8; 1299 dev->board.do_bits = 1; 1300 dev->board.cnt_chans = 2; 1301 dev->board.cnt_bits = 16; 1302 dev->board.pwm_chans = 0; 1303 dev->board.pwm_bits = 0; 1304 break; 1305 case DEVICE_VMK8061: 1306 dev->board.name = "K8061 (VM140)"; 1307 dev->board.model = VMK8061_MODEL; 1308 dev->board.range = &vmk8061_range; 1309 dev->board.ai_chans = 8; 1310 dev->board.ai_bits = 10; 1311 dev->board.ao_chans = 8; 1312 dev->board.ao_bits = 8; 1313 dev->board.di_chans = 8; 1314 dev->board.di_bits = 1; 1315 dev->board.do_chans = 8; 1316 dev->board.do_bits = 1; 1317 dev->board.cnt_chans = 2; 1318 dev->board.cnt_bits = 0; 1319 dev->board.pwm_chans = 1; 1320 dev->board.pwm_bits = 10; 1321 break; 1322 } 1323 1324 if (dev->board.model == VMK8061_MODEL) { 1325 vmk80xx_read_eeprom(dev, IC3_VERSION); 1326 printk(KERN_INFO "comedi#: vmk80xx: %s\n", dev->fw.ic3_vers); 1327 1328 if (vmk80xx_check_data_link(dev)) { 1329 vmk80xx_read_eeprom(dev, IC6_VERSION); 1330 printk(KERN_INFO "comedi#: vmk80xx: %s\n", 1331 dev->fw.ic6_vers); 1332 } else { 1333 dbgcm("comedi#: vmk80xx: no conn. to CPU\n"); 1334 } 1335 } 1336 1337 if (dev->board.model == VMK8055_MODEL) 1338 vmk80xx_reset_device(dev); 1339 1340 dev->probed = 1; 1341 1342 printk(KERN_INFO "comedi#: vmk80xx: board #%d [%s] now attached\n", 1343 dev->count, dev->board.name); 1344 1345 mutex_unlock(&glb_mutex); 1346 1347 return 0; 1348error: 1349 mutex_unlock(&glb_mutex); 1350 1351 return -ENODEV; 1352} 1353 1354static void vmk80xx_disconnect(struct usb_interface *intf) 1355{ 1356 struct vmk80xx_usb *dev = usb_get_intfdata(intf); 1357 1358 dbgvm("vmk80xx: %s\n", __func__); 1359 1360 if (!dev) 1361 return; 1362 1363 mutex_lock(&glb_mutex); 1364 down(&dev->limit_sem); 1365 1366 dev->probed = 0; 1367 usb_set_intfdata(dev->intf, NULL); 1368 1369 usb_kill_anchored_urbs(&dev->rx_anchor); 1370 usb_kill_anchored_urbs(&dev->tx_anchor); 1371 1372 kfree(dev->usb_rx_buf); 1373 kfree(dev->usb_tx_buf); 1374 1375 printk(KERN_INFO "comedi#: vmk80xx: board #%d [%s] now detached\n", 1376 dev->count, dev->board.name); 1377 1378 up(&dev->limit_sem); 1379 mutex_unlock(&glb_mutex); 1380} 1381 1382/* TODO: Add support for suspend, resume, pre_reset, 1383 * post_reset and flush */ 1384static struct usb_driver vmk80xx_driver = { 1385 .name = "vmk80xx", 1386 .probe = vmk80xx_probe, 1387 .disconnect = vmk80xx_disconnect, 1388 .id_table = vmk80xx_id_table 1389}; 1390 1391static struct comedi_driver driver_vmk80xx = { 1392 .module = THIS_MODULE, 1393 .driver_name = "vmk80xx", 1394 .attach = vmk80xx_attach, 1395 .detach = vmk80xx_detach 1396}; 1397 1398static int __init vmk80xx_init(void) 1399{ 1400 printk(KERN_INFO "vmk80xx: version 0.8.01 " 1401 "Manuel Gebele <forensixs@gmx.de>\n"); 1402 usb_register(&vmk80xx_driver); 1403 return comedi_driver_register(&driver_vmk80xx); 1404} 1405 1406static void __exit vmk80xx_exit(void) 1407{ 1408 comedi_driver_unregister(&driver_vmk80xx); 1409 usb_deregister(&vmk80xx_driver); 1410} 1411 1412module_init(vmk80xx_init); 1413module_exit(vmk80xx_exit); 1414