vmk80xx.c revision 510b9be374a4b589e7f6182d306b3c8ec9575e05
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 560static int rudimentary_check(struct vmk80xx_usb *dev, int dir) 561{ 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 } 572 if (dir & DIR_OUT) { 573 if (test_bit(TRANS_OUT_BUSY, &dev->flags)) 574 return -EBUSY; 575 } 576 577 return 0; 578} 579 580static int vmk80xx_ai_rinsn(struct comedi_device *cdev, 581 struct comedi_subdevice *s, 582 struct comedi_insn *insn, unsigned int *data) 583{ 584 struct vmk80xx_usb *dev = cdev->private; 585 int chan; 586 int reg[2]; 587 int n; 588 589 dbgvm("vmk80xx: %s\n", __func__); 590 591 n = rudimentary_check(dev, DIR_IN); 592 if (n) 593 return n; 594 595 down(&dev->limit_sem); 596 chan = CR_CHAN(insn->chanspec); 597 598 switch (dev->board.model) { 599 case VMK8055_MODEL: 600 if (!chan) 601 reg[0] = VMK8055_AI1_REG; 602 else 603 reg[0] = VMK8055_AI2_REG; 604 break; 605 case VMK8061_MODEL: 606 reg[0] = VMK8061_AI_REG1; 607 reg[1] = VMK8061_AI_REG2; 608 dev->usb_tx_buf[0] = VMK8061_CMD_RD_AI; 609 dev->usb_tx_buf[VMK8061_CH_REG] = chan; 610 break; 611 } 612 613 for (n = 0; n < insn->n; n++) { 614 if (vmk80xx_read_packet(dev)) 615 break; 616 617 if (dev->board.model == VMK8055_MODEL) { 618 data[n] = dev->usb_rx_buf[reg[0]]; 619 continue; 620 } 621 622 /* VMK8061_MODEL */ 623 data[n] = dev->usb_rx_buf[reg[0]] + 256 * 624 dev->usb_rx_buf[reg[1]]; 625 } 626 627 up(&dev->limit_sem); 628 629 return n; 630} 631 632static int vmk80xx_ao_winsn(struct comedi_device *cdev, 633 struct comedi_subdevice *s, 634 struct comedi_insn *insn, unsigned int *data) 635{ 636 struct vmk80xx_usb *dev = cdev->private; 637 int chan; 638 int cmd; 639 int reg; 640 int n; 641 642 dbgvm("vmk80xx: %s\n", __func__); 643 644 n = rudimentary_check(dev, DIR_OUT); 645 if (n) 646 return n; 647 648 down(&dev->limit_sem); 649 chan = CR_CHAN(insn->chanspec); 650 651 switch (dev->board.model) { 652 case VMK8055_MODEL: 653 cmd = VMK8055_CMD_WRT_AD; 654 if (!chan) 655 reg = VMK8055_AO1_REG; 656 else 657 reg = VMK8055_AO2_REG; 658 break; 659 default: /* NOTE: avoid compiler warnings */ 660 cmd = VMK8061_CMD_SET_AO; 661 reg = VMK8061_AO_REG; 662 dev->usb_tx_buf[VMK8061_CH_REG] = chan; 663 break; 664 } 665 666 for (n = 0; n < insn->n; n++) { 667 dev->usb_tx_buf[reg] = data[n]; 668 669 if (vmk80xx_write_packet(dev, cmd)) 670 break; 671 } 672 673 up(&dev->limit_sem); 674 675 return n; 676} 677 678static int vmk80xx_ao_rinsn(struct comedi_device *cdev, 679 struct comedi_subdevice *s, 680 struct comedi_insn *insn, unsigned int *data) 681{ 682 struct vmk80xx_usb *dev = cdev->private; 683 int chan; 684 int reg; 685 int n; 686 687 dbgvm("vmk80xx: %s\n", __func__); 688 689 n = rudimentary_check(dev, DIR_IN); 690 if (n) 691 return n; 692 693 down(&dev->limit_sem); 694 chan = CR_CHAN(insn->chanspec); 695 696 reg = VMK8061_AO_REG - 1; 697 698 dev->usb_tx_buf[0] = VMK8061_CMD_RD_AO; 699 700 for (n = 0; n < insn->n; n++) { 701 if (vmk80xx_read_packet(dev)) 702 break; 703 704 data[n] = dev->usb_rx_buf[reg + chan]; 705 } 706 707 up(&dev->limit_sem); 708 709 return n; 710} 711 712static int vmk80xx_di_rinsn(struct comedi_device *cdev, 713 struct comedi_subdevice *s, 714 struct comedi_insn *insn, unsigned int *data) 715{ 716 struct vmk80xx_usb *dev = cdev->private; 717 int chan; 718 unsigned char *rx_buf; 719 int reg; 720 int inp; 721 int n; 722 723 dbgvm("vmk80xx: %s\n", __func__); 724 725 n = rudimentary_check(dev, DIR_IN); 726 if (n) 727 return n; 728 729 down(&dev->limit_sem); 730 chan = CR_CHAN(insn->chanspec); 731 732 rx_buf = dev->usb_rx_buf; 733 734 if (dev->board.model == VMK8061_MODEL) { 735 reg = VMK8061_DI_REG; 736 dev->usb_tx_buf[0] = VMK8061_CMD_RD_DI; 737 } else { 738 reg = VMK8055_DI_REG; 739 } 740 for (n = 0; n < insn->n; n++) { 741 if (vmk80xx_read_packet(dev)) 742 break; 743 744 if (dev->board.model == VMK8055_MODEL) 745 inp = (((rx_buf[reg] >> 4) & 0x03) | 746 ((rx_buf[reg] << 2) & 0x04) | 747 ((rx_buf[reg] >> 3) & 0x18)); 748 else 749 inp = rx_buf[reg]; 750 751 data[n] = (inp >> chan) & 1; 752 } 753 754 up(&dev->limit_sem); 755 756 return n; 757} 758 759static int vmk80xx_do_winsn(struct comedi_device *cdev, 760 struct comedi_subdevice *s, 761 struct comedi_insn *insn, unsigned int *data) 762{ 763 struct vmk80xx_usb *dev = cdev->private; 764 int chan; 765 unsigned char *tx_buf; 766 int reg; 767 int cmd; 768 int n; 769 770 dbgvm("vmk80xx: %s\n", __func__); 771 772 n = rudimentary_check(dev, DIR_OUT); 773 if (n) 774 return n; 775 776 down(&dev->limit_sem); 777 chan = CR_CHAN(insn->chanspec); 778 779 tx_buf = dev->usb_tx_buf; 780 781 for (n = 0; n < insn->n; n++) { 782 if (dev->board.model == VMK8055_MODEL) { 783 reg = VMK8055_DO_REG; 784 cmd = VMK8055_CMD_WRT_AD; 785 if (data[n] == 1) 786 tx_buf[reg] |= (1 << chan); 787 else 788 tx_buf[reg] ^= (1 << chan); 789 } else { /* VMK8061_MODEL */ 790 reg = VMK8061_DO_REG; 791 if (data[n] == 1) { 792 cmd = VMK8061_CMD_SET_DO; 793 tx_buf[reg] = 1 << chan; 794 } else { 795 cmd = VMK8061_CMD_CLR_DO; 796 tx_buf[reg] = 0xff - (1 << chan); 797 } 798 } 799 800 if (vmk80xx_write_packet(dev, cmd)) 801 break; 802 } 803 804 up(&dev->limit_sem); 805 806 return n; 807} 808 809static int vmk80xx_do_rinsn(struct comedi_device *cdev, 810 struct comedi_subdevice *s, 811 struct comedi_insn *insn, unsigned int *data) 812{ 813 struct vmk80xx_usb *dev = cdev->private; 814 int chan; 815 int reg; 816 int n; 817 818 dbgvm("vmk80xx: %s\n", __func__); 819 820 n = rudimentary_check(dev, DIR_IN); 821 if (n) 822 return n; 823 824 down(&dev->limit_sem); 825 chan = CR_CHAN(insn->chanspec); 826 827 reg = VMK8061_DO_REG; 828 829 dev->usb_tx_buf[0] = VMK8061_CMD_RD_DO; 830 831 for (n = 0; n < insn->n; n++) { 832 if (vmk80xx_read_packet(dev)) 833 break; 834 835 data[n] = (dev->usb_rx_buf[reg] >> chan) & 1; 836 } 837 838 up(&dev->limit_sem); 839 840 return n; 841} 842 843static int vmk80xx_cnt_rinsn(struct comedi_device *cdev, 844 struct comedi_subdevice *s, 845 struct comedi_insn *insn, unsigned int *data) 846{ 847 struct vmk80xx_usb *dev = cdev->private; 848 int chan; 849 int reg[2]; 850 int n; 851 852 dbgvm("vmk80xx: %s\n", __func__); 853 854 n = rudimentary_check(dev, DIR_IN); 855 if (n) 856 return n; 857 858 down(&dev->limit_sem); 859 chan = CR_CHAN(insn->chanspec); 860 861 switch (dev->board.model) { 862 case VMK8055_MODEL: 863 if (!chan) 864 reg[0] = VMK8055_CNT1_REG; 865 else 866 reg[0] = VMK8055_CNT2_REG; 867 break; 868 case VMK8061_MODEL: 869 reg[0] = VMK8061_CNT_REG; 870 reg[1] = VMK8061_CNT_REG; 871 dev->usb_tx_buf[0] = VMK8061_CMD_RD_CNT; 872 break; 873 } 874 875 for (n = 0; n < insn->n; n++) { 876 if (vmk80xx_read_packet(dev)) 877 break; 878 879 if (dev->board.model == VMK8055_MODEL) 880 data[n] = dev->usb_rx_buf[reg[0]]; 881 else /* VMK8061_MODEL */ 882 data[n] = dev->usb_rx_buf[reg[0] * (chan + 1) + 1] 883 + 256 * dev->usb_rx_buf[reg[1] * 2 + 2]; 884 } 885 886 up(&dev->limit_sem); 887 888 return n; 889} 890 891static int vmk80xx_cnt_cinsn(struct comedi_device *cdev, 892 struct comedi_subdevice *s, 893 struct comedi_insn *insn, unsigned int *data) 894{ 895 struct vmk80xx_usb *dev = cdev->private; 896 unsigned int insn_cmd; 897 int chan; 898 int cmd; 899 int reg; 900 int n; 901 902 dbgvm("vmk80xx: %s\n", __func__); 903 904 n = rudimentary_check(dev, DIR_OUT); 905 if (n) 906 return n; 907 908 down(&dev->limit_sem); 909 910 insn_cmd = data[0]; 911 if (insn_cmd != INSN_CONFIG_RESET && insn_cmd != GPCT_RESET) 912 return -EINVAL; 913 914 chan = CR_CHAN(insn->chanspec); 915 916 if (dev->board.model == VMK8055_MODEL) { 917 if (!chan) { 918 cmd = VMK8055_CMD_RST_CNT1; 919 reg = VMK8055_CNT1_REG; 920 } else { 921 cmd = VMK8055_CMD_RST_CNT2; 922 reg = VMK8055_CNT2_REG; 923 } 924 925 dev->usb_tx_buf[reg] = 0x00; 926 } else { 927 cmd = VMK8061_CMD_RST_CNT; 928 } 929 930 for (n = 0; n < insn->n; n++) 931 if (vmk80xx_write_packet(dev, cmd)) 932 break; 933 934 up(&dev->limit_sem); 935 936 return n; 937} 938 939static int vmk80xx_cnt_winsn(struct comedi_device *cdev, 940 struct comedi_subdevice *s, 941 struct comedi_insn *insn, unsigned int *data) 942{ 943 struct vmk80xx_usb *dev = cdev->private; 944 unsigned long debtime; 945 unsigned long val; 946 int chan; 947 int cmd; 948 int n; 949 950 dbgvm("vmk80xx: %s\n", __func__); 951 952 n = rudimentary_check(dev, DIR_OUT); 953 if (n) 954 return n; 955 956 down(&dev->limit_sem); 957 chan = CR_CHAN(insn->chanspec); 958 959 if (!chan) 960 cmd = VMK8055_CMD_DEB1_TIME; 961 else 962 cmd = VMK8055_CMD_DEB2_TIME; 963 964 for (n = 0; n < insn->n; n++) { 965 debtime = data[n]; 966 if (debtime == 0) 967 debtime = 1; 968 969 /* TODO: Prevent overflows */ 970 if (debtime > 7450) 971 debtime = 7450; 972 973 val = int_sqrt(debtime * 1000 / 115); 974 if (((val + 1) * val) < debtime * 1000 / 115) 975 val += 1; 976 977 dev->usb_tx_buf[6 + chan] = val; 978 979 if (vmk80xx_write_packet(dev, cmd)) 980 break; 981 } 982 983 up(&dev->limit_sem); 984 985 return n; 986} 987 988static int vmk80xx_pwm_rinsn(struct comedi_device *cdev, 989 struct comedi_subdevice *s, 990 struct comedi_insn *insn, unsigned int *data) 991{ 992 struct vmk80xx_usb *dev = cdev->private; 993 int reg[2]; 994 int n; 995 996 dbgvm("vmk80xx: %s\n", __func__); 997 998 n = rudimentary_check(dev, DIR_IN); 999 if (n) 1000 return n; 1001 1002 down(&dev->limit_sem); 1003 1004 reg[0] = VMK8061_PWM_REG1; 1005 reg[1] = VMK8061_PWM_REG2; 1006 1007 dev->usb_tx_buf[0] = VMK8061_CMD_RD_PWM; 1008 1009 for (n = 0; n < insn->n; n++) { 1010 if (vmk80xx_read_packet(dev)) 1011 break; 1012 1013 data[n] = dev->usb_rx_buf[reg[0]] + 4 * dev->usb_rx_buf[reg[1]]; 1014 } 1015 1016 up(&dev->limit_sem); 1017 1018 return n; 1019} 1020 1021static int vmk80xx_pwm_winsn(struct comedi_device *cdev, 1022 struct comedi_subdevice *s, 1023 struct comedi_insn *insn, unsigned int *data) 1024{ 1025 struct vmk80xx_usb *dev = cdev->private; 1026 unsigned char *tx_buf; 1027 int reg[2]; 1028 int cmd; 1029 int n; 1030 1031 dbgvm("vmk80xx: %s\n", __func__); 1032 1033 n = rudimentary_check(dev, DIR_OUT); 1034 if (n) 1035 return n; 1036 1037 down(&dev->limit_sem); 1038 1039 tx_buf = dev->usb_tx_buf; 1040 1041 reg[0] = VMK8061_PWM_REG1; 1042 reg[1] = VMK8061_PWM_REG2; 1043 1044 cmd = VMK8061_CMD_OUT_PWM; 1045 1046 /* 1047 * The followin piece of code was translated from the inline 1048 * assembler code in the DLL source code. 1049 * 1050 * asm 1051 * mov eax, k ; k is the value (data[n]) 1052 * and al, 03h ; al are the lower 8 bits of eax 1053 * mov lo, al ; lo is the low part (tx_buf[reg[0]]) 1054 * mov eax, k 1055 * shr eax, 2 ; right shift eax register by 2 1056 * mov hi, al ; hi is the high part (tx_buf[reg[1]]) 1057 * end; 1058 */ 1059 for (n = 0; n < insn->n; n++) { 1060 tx_buf[reg[0]] = (unsigned char)(data[n] & 0x03); 1061 tx_buf[reg[1]] = (unsigned char)(data[n] >> 2) & 0xff; 1062 1063 if (vmk80xx_write_packet(dev, cmd)) 1064 break; 1065 } 1066 1067 up(&dev->limit_sem); 1068 1069 return n; 1070} 1071 1072static int vmk80xx_attach(struct comedi_device *cdev, 1073 struct comedi_devconfig *it) 1074{ 1075 int i; 1076 struct vmk80xx_usb *dev; 1077 int n_subd; 1078 struct comedi_subdevice *s; 1079 int minor; 1080 1081 dbgvm("vmk80xx: %s\n", __func__); 1082 1083 mutex_lock(&glb_mutex); 1084 1085 for (i = 0; i < VMK80XX_MAX_BOARDS; i++) 1086 if (vmb[i].probed && !vmb[i].attached) 1087 break; 1088 1089 if (i == VMK80XX_MAX_BOARDS) { 1090 mutex_unlock(&glb_mutex); 1091 return -ENODEV; 1092 } 1093 1094 dev = &vmb[i]; 1095 1096 down(&dev->limit_sem); 1097 1098 cdev->board_name = dev->board.name; 1099 cdev->private = dev; 1100 1101 if (dev->board.model == VMK8055_MODEL) 1102 n_subd = 5; 1103 else 1104 n_subd = 6; 1105 1106 if (alloc_subdevices(cdev, n_subd) < 0) { 1107 up(&dev->limit_sem); 1108 mutex_unlock(&glb_mutex); 1109 return -ENOMEM; 1110 } 1111 1112 /* Analog input subdevice */ 1113 s = cdev->subdevices + VMK80XX_SUBD_AI; 1114 s->type = COMEDI_SUBD_AI; 1115 s->subdev_flags = SDF_READABLE | SDF_GROUND; 1116 s->n_chan = dev->board.ai_chans; 1117 s->maxdata = (1 << dev->board.ai_bits) - 1; 1118 s->range_table = dev->board.range; 1119 s->insn_read = vmk80xx_ai_rinsn; 1120 1121 /* Analog output subdevice */ 1122 s = cdev->subdevices + VMK80XX_SUBD_AO; 1123 s->type = COMEDI_SUBD_AO; 1124 s->subdev_flags = SDF_WRITEABLE | SDF_GROUND; 1125 s->n_chan = dev->board.ao_chans; 1126 s->maxdata = (1 << dev->board.ao_bits) - 1; 1127 s->range_table = dev->board.range; 1128 s->insn_write = vmk80xx_ao_winsn; 1129 1130 if (dev->board.model == VMK8061_MODEL) { 1131 s->subdev_flags |= SDF_READABLE; 1132 s->insn_read = vmk80xx_ao_rinsn; 1133 } 1134 1135 /* Digital input subdevice */ 1136 s = cdev->subdevices + VMK80XX_SUBD_DI; 1137 s->type = COMEDI_SUBD_DI; 1138 s->subdev_flags = SDF_READABLE | SDF_GROUND; 1139 s->n_chan = dev->board.di_chans; 1140 s->maxdata = 1; 1141 s->insn_read = vmk80xx_di_rinsn; 1142 1143 /* Digital output subdevice */ 1144 s = cdev->subdevices + VMK80XX_SUBD_DO; 1145 s->type = COMEDI_SUBD_DO; 1146 s->subdev_flags = SDF_WRITEABLE | SDF_GROUND; 1147 s->n_chan = dev->board.do_chans; 1148 s->maxdata = 1; 1149 s->insn_write = vmk80xx_do_winsn; 1150 1151 if (dev->board.model == VMK8061_MODEL) { 1152 s->subdev_flags |= SDF_READABLE; 1153 s->insn_read = vmk80xx_do_rinsn; 1154 } 1155 1156 /* Counter subdevice */ 1157 s = cdev->subdevices + VMK80XX_SUBD_CNT; 1158 s->type = COMEDI_SUBD_COUNTER; 1159 s->subdev_flags = SDF_READABLE; 1160 s->n_chan = dev->board.cnt_chans; 1161 s->insn_read = vmk80xx_cnt_rinsn; 1162 s->insn_config = vmk80xx_cnt_cinsn; 1163 1164 if (dev->board.model == VMK8055_MODEL) { 1165 s->subdev_flags |= SDF_WRITEABLE; 1166 s->maxdata = (1 << dev->board.cnt_bits) - 1; 1167 s->insn_write = vmk80xx_cnt_winsn; 1168 } 1169 1170 /* PWM subdevice */ 1171 if (dev->board.model == VMK8061_MODEL) { 1172 s = cdev->subdevices + VMK80XX_SUBD_PWM; 1173 s->type = COMEDI_SUBD_PWM; 1174 s->subdev_flags = SDF_READABLE | SDF_WRITEABLE; 1175 s->n_chan = dev->board.pwm_chans; 1176 s->maxdata = (1 << dev->board.pwm_bits) - 1; 1177 s->insn_read = vmk80xx_pwm_rinsn; 1178 s->insn_write = vmk80xx_pwm_winsn; 1179 } 1180 1181 dev->attached = 1; 1182 1183 minor = cdev->minor; 1184 1185 printk(KERN_INFO 1186 "comedi%d: vmk80xx: board #%d [%s] attached to comedi\n", 1187 minor, dev->count, dev->board.name); 1188 1189 up(&dev->limit_sem); 1190 mutex_unlock(&glb_mutex); 1191 1192 return 0; 1193} 1194 1195static int vmk80xx_detach(struct comedi_device *cdev) 1196{ 1197 struct vmk80xx_usb *dev; 1198 int minor; 1199 1200 dbgvm("vmk80xx: %s\n", __func__); 1201 1202 if (!cdev) 1203 return -EFAULT; 1204 1205 dev = cdev->private; 1206 if (!dev) 1207 return -EFAULT; 1208 1209 down(&dev->limit_sem); 1210 1211 cdev->private = NULL; 1212 dev->attached = 0; 1213 1214 minor = cdev->minor; 1215 1216 printk(KERN_INFO 1217 "comedi%d: vmk80xx: board #%d [%s] detached from comedi\n", 1218 minor, dev->count, dev->board.name); 1219 1220 up(&dev->limit_sem); 1221 1222 return 0; 1223} 1224 1225static int vmk80xx_probe(struct usb_interface *intf, 1226 const struct usb_device_id *id) 1227{ 1228 int i; 1229 struct vmk80xx_usb *dev; 1230 struct usb_host_interface *iface_desc; 1231 struct usb_endpoint_descriptor *ep_desc; 1232 size_t size; 1233 1234 dbgvm("vmk80xx: %s\n", __func__); 1235 1236 mutex_lock(&glb_mutex); 1237 1238 for (i = 0; i < VMK80XX_MAX_BOARDS; i++) 1239 if (!vmb[i].probed) 1240 break; 1241 1242 if (i == VMK80XX_MAX_BOARDS) { 1243 mutex_unlock(&glb_mutex); 1244 return -EMFILE; 1245 } 1246 1247 dev = &vmb[i]; 1248 1249 memset(dev, 0x00, sizeof(struct vmk80xx_usb)); 1250 dev->count = i; 1251 1252 iface_desc = intf->cur_altsetting; 1253 if (iface_desc->desc.bNumEndpoints != 2) 1254 goto error; 1255 1256 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { 1257 ep_desc = &iface_desc->endpoint[i].desc; 1258 1259 if (usb_endpoint_is_int_in(ep_desc)) { 1260 dev->ep_rx = ep_desc; 1261 continue; 1262 } 1263 1264 if (usb_endpoint_is_int_out(ep_desc)) { 1265 dev->ep_tx = ep_desc; 1266 continue; 1267 } 1268 1269 if (usb_endpoint_is_bulk_in(ep_desc)) { 1270 dev->ep_rx = ep_desc; 1271 continue; 1272 } 1273 1274 if (usb_endpoint_is_bulk_out(ep_desc)) { 1275 dev->ep_tx = ep_desc; 1276 continue; 1277 } 1278 } 1279 1280 if (!dev->ep_rx || !dev->ep_tx) 1281 goto error; 1282 1283 size = le16_to_cpu(dev->ep_rx->wMaxPacketSize); 1284 dev->usb_rx_buf = kmalloc(size, GFP_KERNEL); 1285 if (!dev->usb_rx_buf) { 1286 mutex_unlock(&glb_mutex); 1287 return -ENOMEM; 1288 } 1289 1290 size = le16_to_cpu(dev->ep_tx->wMaxPacketSize); 1291 dev->usb_tx_buf = kmalloc(size, GFP_KERNEL); 1292 if (!dev->usb_tx_buf) { 1293 kfree(dev->usb_rx_buf); 1294 mutex_unlock(&glb_mutex); 1295 return -ENOMEM; 1296 } 1297 1298 dev->udev = interface_to_usbdev(intf); 1299 dev->intf = intf; 1300 1301 sema_init(&dev->limit_sem, 8); 1302 init_waitqueue_head(&dev->read_wait); 1303 init_waitqueue_head(&dev->write_wait); 1304 1305 init_usb_anchor(&dev->rx_anchor); 1306 init_usb_anchor(&dev->tx_anchor); 1307 1308 usb_set_intfdata(intf, dev); 1309 1310 switch (id->driver_info) { 1311 case DEVICE_VMK8055: 1312 dev->board.name = "K8055 (VM110)"; 1313 dev->board.model = VMK8055_MODEL; 1314 dev->board.range = &vmk8055_range; 1315 dev->board.ai_chans = 2; 1316 dev->board.ai_bits = 8; 1317 dev->board.ao_chans = 2; 1318 dev->board.ao_bits = 8; 1319 dev->board.di_chans = 5; 1320 dev->board.di_bits = 1; 1321 dev->board.do_chans = 8; 1322 dev->board.do_bits = 1; 1323 dev->board.cnt_chans = 2; 1324 dev->board.cnt_bits = 16; 1325 dev->board.pwm_chans = 0; 1326 dev->board.pwm_bits = 0; 1327 break; 1328 case DEVICE_VMK8061: 1329 dev->board.name = "K8061 (VM140)"; 1330 dev->board.model = VMK8061_MODEL; 1331 dev->board.range = &vmk8061_range; 1332 dev->board.ai_chans = 8; 1333 dev->board.ai_bits = 10; 1334 dev->board.ao_chans = 8; 1335 dev->board.ao_bits = 8; 1336 dev->board.di_chans = 8; 1337 dev->board.di_bits = 1; 1338 dev->board.do_chans = 8; 1339 dev->board.do_bits = 1; 1340 dev->board.cnt_chans = 2; 1341 dev->board.cnt_bits = 0; 1342 dev->board.pwm_chans = 1; 1343 dev->board.pwm_bits = 10; 1344 break; 1345 } 1346 1347 if (dev->board.model == VMK8061_MODEL) { 1348 vmk80xx_read_eeprom(dev, IC3_VERSION); 1349 printk(KERN_INFO "comedi#: vmk80xx: %s\n", dev->fw.ic3_vers); 1350 1351 if (vmk80xx_check_data_link(dev)) { 1352 vmk80xx_read_eeprom(dev, IC6_VERSION); 1353 printk(KERN_INFO "comedi#: vmk80xx: %s\n", 1354 dev->fw.ic6_vers); 1355 } else { 1356 dbgcm("comedi#: vmk80xx: no conn. to CPU\n"); 1357 } 1358 } 1359 1360 if (dev->board.model == VMK8055_MODEL) 1361 vmk80xx_reset_device(dev); 1362 1363 dev->probed = 1; 1364 1365 printk(KERN_INFO "comedi#: vmk80xx: board #%d [%s] now attached\n", 1366 dev->count, dev->board.name); 1367 1368 mutex_unlock(&glb_mutex); 1369 1370 return 0; 1371error: 1372 mutex_unlock(&glb_mutex); 1373 1374 return -ENODEV; 1375} 1376 1377static void vmk80xx_disconnect(struct usb_interface *intf) 1378{ 1379 struct vmk80xx_usb *dev = usb_get_intfdata(intf); 1380 1381 dbgvm("vmk80xx: %s\n", __func__); 1382 1383 if (!dev) 1384 return; 1385 1386 mutex_lock(&glb_mutex); 1387 down(&dev->limit_sem); 1388 1389 dev->probed = 0; 1390 usb_set_intfdata(dev->intf, NULL); 1391 1392 usb_kill_anchored_urbs(&dev->rx_anchor); 1393 usb_kill_anchored_urbs(&dev->tx_anchor); 1394 1395 kfree(dev->usb_rx_buf); 1396 kfree(dev->usb_tx_buf); 1397 1398 printk(KERN_INFO "comedi#: vmk80xx: board #%d [%s] now detached\n", 1399 dev->count, dev->board.name); 1400 1401 up(&dev->limit_sem); 1402 mutex_unlock(&glb_mutex); 1403} 1404 1405/* TODO: Add support for suspend, resume, pre_reset, 1406 * post_reset and flush */ 1407static struct usb_driver vmk80xx_driver = { 1408 .name = "vmk80xx", 1409 .probe = vmk80xx_probe, 1410 .disconnect = vmk80xx_disconnect, 1411 .id_table = vmk80xx_id_table 1412}; 1413 1414static struct comedi_driver driver_vmk80xx = { 1415 .module = THIS_MODULE, 1416 .driver_name = "vmk80xx", 1417 .attach = vmk80xx_attach, 1418 .detach = vmk80xx_detach 1419}; 1420 1421static int __init vmk80xx_init(void) 1422{ 1423 printk(KERN_INFO "vmk80xx: version 0.8.01 " 1424 "Manuel Gebele <forensixs@gmx.de>\n"); 1425 usb_register(&vmk80xx_driver); 1426 return comedi_driver_register(&driver_vmk80xx); 1427} 1428 1429static void __exit vmk80xx_exit(void) 1430{ 1431 comedi_driver_unregister(&driver_vmk80xx); 1432 usb_deregister(&vmk80xx_driver); 1433} 1434 1435module_init(vmk80xx_init); 1436module_exit(vmk80xx_exit); 1437