kobil_sct.c revision c0f631d1948658b27349545b2cbcb4b32f010c7a
1/* 2 * KOBIL USB Smart Card Terminal Driver 3 * 4 * Copyright (C) 2002 KOBIL Systems GmbH 5 * Author: Thomas Wahrenbruch 6 * 7 * Contact: linuxusb@kobil.de 8 * 9 * This program is largely derived from work by the linux-usb group 10 * and associated source files. Please see the usb/serial files for 11 * individual credits and copyrights. 12 * 13 * This program is free software; you can redistribute it and/or modify 14 * it under the terms of the GNU General Public License as published by 15 * the Free Software Foundation; either version 2 of the License, or 16 * (at your option) any later version. 17 * 18 * Thanks to Greg Kroah-Hartman (greg@kroah.com) for his help and 19 * patience. 20 * 21 * Supported readers: USB TWIN, KAAN Standard Plus and SecOVID Reader Plus 22 * (Adapter K), B1 Professional and KAAN Professional (Adapter B) 23 * 24 * (21/05/2004) tw 25 * Fix bug with P'n'P readers 26 * 27 * (28/05/2003) tw 28 * Add support for KAAN SIM 29 * 30 * (12/09/2002) tw 31 * Adapted to 2.5. 32 * 33 * (11/08/2002) tw 34 * Initial version. 35 */ 36 37 38#include <linux/kernel.h> 39#include <linux/errno.h> 40#include <linux/init.h> 41#include <linux/slab.h> 42#include <linux/tty.h> 43#include <linux/tty_driver.h> 44#include <linux/tty_flip.h> 45#include <linux/module.h> 46#include <linux/spinlock.h> 47#include <linux/uaccess.h> 48#include <linux/usb.h> 49#include <linux/usb/serial.h> 50#include <linux/ioctl.h> 51#include "kobil_sct.h" 52 53static int debug; 54 55/* Version Information */ 56#define DRIVER_VERSION "21/05/2004" 57#define DRIVER_AUTHOR "KOBIL Systems GmbH - http://www.kobil.com" 58#define DRIVER_DESC "KOBIL USB Smart Card Terminal Driver (experimental)" 59 60#define KOBIL_VENDOR_ID 0x0D46 61#define KOBIL_ADAPTER_B_PRODUCT_ID 0x2011 62#define KOBIL_ADAPTER_K_PRODUCT_ID 0x2012 63#define KOBIL_USBTWIN_PRODUCT_ID 0x0078 64#define KOBIL_KAAN_SIM_PRODUCT_ID 0x0081 65 66#define KOBIL_TIMEOUT 500 67#define KOBIL_BUF_LENGTH 300 68 69 70/* Function prototypes */ 71static int kobil_startup(struct usb_serial *serial); 72static void kobil_release(struct usb_serial *serial); 73static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port); 74static void kobil_close(struct usb_serial_port *port); 75static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port, 76 const unsigned char *buf, int count); 77static int kobil_write_room(struct tty_struct *tty); 78static int kobil_ioctl(struct tty_struct *tty, struct file *file, 79 unsigned int cmd, unsigned long arg); 80static int kobil_tiocmget(struct tty_struct *tty, struct file *file); 81static int kobil_tiocmset(struct tty_struct *tty, struct file *file, 82 unsigned int set, unsigned int clear); 83static void kobil_read_int_callback(struct urb *urb); 84static void kobil_write_callback(struct urb *purb); 85static void kobil_set_termios(struct tty_struct *tty, 86 struct usb_serial_port *port, struct ktermios *old); 87static void kobil_init_termios(struct tty_struct *tty); 88 89static const struct usb_device_id id_table[] = { 90 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) }, 91 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_K_PRODUCT_ID) }, 92 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_USBTWIN_PRODUCT_ID) }, 93 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_KAAN_SIM_PRODUCT_ID) }, 94 { } /* Terminating entry */ 95}; 96 97 98MODULE_DEVICE_TABLE(usb, id_table); 99 100static struct usb_driver kobil_driver = { 101 .name = "kobil", 102 .probe = usb_serial_probe, 103 .disconnect = usb_serial_disconnect, 104 .id_table = id_table, 105 .no_dynamic_id = 1, 106}; 107 108 109static struct usb_serial_driver kobil_device = { 110 .driver = { 111 .owner = THIS_MODULE, 112 .name = "kobil", 113 }, 114 .description = "KOBIL USB smart card terminal", 115 .usb_driver = &kobil_driver, 116 .id_table = id_table, 117 .num_ports = 1, 118 .attach = kobil_startup, 119 .release = kobil_release, 120 .ioctl = kobil_ioctl, 121 .set_termios = kobil_set_termios, 122 .init_termios = kobil_init_termios, 123 .tiocmget = kobil_tiocmget, 124 .tiocmset = kobil_tiocmset, 125 .open = kobil_open, 126 .close = kobil_close, 127 .write = kobil_write, 128 .write_room = kobil_write_room, 129 .read_int_callback = kobil_read_int_callback, 130}; 131 132 133struct kobil_private { 134 int write_int_endpoint_address; 135 int read_int_endpoint_address; 136 unsigned char buf[KOBIL_BUF_LENGTH]; /* buffer for the APDU to send */ 137 int filled; /* index of the last char in buf */ 138 int cur_pos; /* index of the next char to send in buf */ 139 __u16 device_type; 140}; 141 142 143static int kobil_startup(struct usb_serial *serial) 144{ 145 int i; 146 struct kobil_private *priv; 147 struct usb_device *pdev; 148 struct usb_host_config *actconfig; 149 struct usb_interface *interface; 150 struct usb_host_interface *altsetting; 151 struct usb_host_endpoint *endpoint; 152 153 priv = kmalloc(sizeof(struct kobil_private), GFP_KERNEL); 154 if (!priv) 155 return -ENOMEM; 156 157 priv->filled = 0; 158 priv->cur_pos = 0; 159 priv->device_type = le16_to_cpu(serial->dev->descriptor.idProduct); 160 161 switch (priv->device_type) { 162 case KOBIL_ADAPTER_B_PRODUCT_ID: 163 printk(KERN_DEBUG "KOBIL B1 PRO / KAAN PRO detected\n"); 164 break; 165 case KOBIL_ADAPTER_K_PRODUCT_ID: 166 printk(KERN_DEBUG 167 "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n"); 168 break; 169 case KOBIL_USBTWIN_PRODUCT_ID: 170 printk(KERN_DEBUG "KOBIL USBTWIN detected\n"); 171 break; 172 case KOBIL_KAAN_SIM_PRODUCT_ID: 173 printk(KERN_DEBUG "KOBIL KAAN SIM detected\n"); 174 break; 175 } 176 usb_set_serial_port_data(serial->port[0], priv); 177 178 /* search for the necessary endpoints */ 179 pdev = serial->dev; 180 actconfig = pdev->actconfig; 181 interface = actconfig->interface[0]; 182 altsetting = interface->cur_altsetting; 183 endpoint = altsetting->endpoint; 184 185 for (i = 0; i < altsetting->desc.bNumEndpoints; i++) { 186 endpoint = &altsetting->endpoint[i]; 187 if (usb_endpoint_is_int_out(&endpoint->desc)) { 188 dbg("%s Found interrupt out endpoint. Address: %d", 189 __func__, endpoint->desc.bEndpointAddress); 190 priv->write_int_endpoint_address = 191 endpoint->desc.bEndpointAddress; 192 } 193 if (usb_endpoint_is_int_in(&endpoint->desc)) { 194 dbg("%s Found interrupt in endpoint. Address: %d", 195 __func__, endpoint->desc.bEndpointAddress); 196 priv->read_int_endpoint_address = 197 endpoint->desc.bEndpointAddress; 198 } 199 } 200 return 0; 201} 202 203 204static void kobil_release(struct usb_serial *serial) 205{ 206 int i; 207 dbg("%s - port %d", __func__, serial->port[0]->number); 208 209 for (i = 0; i < serial->num_ports; ++i) 210 kfree(usb_get_serial_port_data(serial->port[i])); 211} 212 213static void kobil_init_termios(struct tty_struct *tty) 214{ 215 /* Default to echo off and other sane device settings */ 216 tty->termios->c_lflag = 0; 217 tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE); 218 tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF; 219 /* do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) */ 220 tty->termios->c_oflag &= ~ONLCR; 221} 222 223static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port) 224{ 225 int result = 0; 226 struct kobil_private *priv; 227 unsigned char *transfer_buffer; 228 int transfer_buffer_length = 8; 229 int write_urb_transfer_buffer_length = 8; 230 231 dbg("%s - port %d", __func__, port->number); 232 priv = usb_get_serial_port_data(port); 233 234 /* someone sets the dev to 0 if the close method has been called */ 235 port->interrupt_in_urb->dev = port->serial->dev; 236 237 /* allocate memory for transfer buffer */ 238 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 239 if (!transfer_buffer) 240 return -ENOMEM; 241 242 /* allocate write_urb */ 243 if (!port->write_urb) { 244 dbg("%s - port %d Allocating port->write_urb", 245 __func__, port->number); 246 port->write_urb = usb_alloc_urb(0, GFP_KERNEL); 247 if (!port->write_urb) { 248 dbg("%s - port %d usb_alloc_urb failed", 249 __func__, port->number); 250 kfree(transfer_buffer); 251 return -ENOMEM; 252 } 253 } 254 255 /* allocate memory for write_urb transfer buffer */ 256 port->write_urb->transfer_buffer = 257 kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL); 258 if (!port->write_urb->transfer_buffer) { 259 kfree(transfer_buffer); 260 usb_free_urb(port->write_urb); 261 port->write_urb = NULL; 262 return -ENOMEM; 263 } 264 265 /* get hardware version */ 266 result = usb_control_msg(port->serial->dev, 267 usb_rcvctrlpipe(port->serial->dev, 0), 268 SUSBCRequest_GetMisc, 269 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 270 SUSBCR_MSC_GetHWVersion, 271 0, 272 transfer_buffer, 273 transfer_buffer_length, 274 KOBIL_TIMEOUT 275 ); 276 dbg("%s - port %d Send get_HW_version URB returns: %i", 277 __func__, port->number, result); 278 dbg("Harware version: %i.%i.%i", 279 transfer_buffer[0], transfer_buffer[1], transfer_buffer[2]); 280 281 /* get firmware version */ 282 result = usb_control_msg(port->serial->dev, 283 usb_rcvctrlpipe(port->serial->dev, 0), 284 SUSBCRequest_GetMisc, 285 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 286 SUSBCR_MSC_GetFWVersion, 287 0, 288 transfer_buffer, 289 transfer_buffer_length, 290 KOBIL_TIMEOUT 291 ); 292 dbg("%s - port %d Send get_FW_version URB returns: %i", 293 __func__, port->number, result); 294 dbg("Firmware version: %i.%i.%i", 295 transfer_buffer[0], transfer_buffer[1], transfer_buffer[2]); 296 297 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 298 priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) { 299 /* Setting Baudrate, Parity and Stopbits */ 300 result = usb_control_msg(port->serial->dev, 301 usb_rcvctrlpipe(port->serial->dev, 0), 302 SUSBCRequest_SetBaudRateParityAndStopBits, 303 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 304 SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity | 305 SUSBCR_SPASB_1StopBit, 306 0, 307 transfer_buffer, 308 0, 309 KOBIL_TIMEOUT 310 ); 311 dbg("%s - port %d Send set_baudrate URB returns: %i", 312 __func__, port->number, result); 313 314 /* reset all queues */ 315 result = usb_control_msg(port->serial->dev, 316 usb_rcvctrlpipe(port->serial->dev, 0), 317 SUSBCRequest_Misc, 318 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 319 SUSBCR_MSC_ResetAllQueues, 320 0, 321 transfer_buffer, 322 0, 323 KOBIL_TIMEOUT 324 ); 325 dbg("%s - port %d Send reset_all_queues URB returns: %i", 326 __func__, port->number, result); 327 } 328 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || 329 priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 330 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 331 /* start reading (Adapter B 'cause PNP string) */ 332 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); 333 dbg("%s - port %d Send read URB returns: %i", 334 __func__, port->number, result); 335 } 336 337 kfree(transfer_buffer); 338 return 0; 339} 340 341 342static void kobil_close(struct usb_serial_port *port) 343{ 344 dbg("%s - port %d", __func__, port->number); 345 346 /* FIXME: Add rts/dtr methods */ 347 if (port->write_urb) { 348 usb_poison_urb(port->write_urb); 349 kfree(port->write_urb->transfer_buffer); 350 usb_free_urb(port->write_urb); 351 port->write_urb = NULL; 352 } 353 usb_kill_urb(port->interrupt_in_urb); 354} 355 356 357static void kobil_read_int_callback(struct urb *urb) 358{ 359 int result; 360 struct usb_serial_port *port = urb->context; 361 struct tty_struct *tty; 362 unsigned char *data = urb->transfer_buffer; 363 int status = urb->status; 364/* char *dbg_data; */ 365 366 dbg("%s - port %d", __func__, port->number); 367 368 if (status) { 369 dbg("%s - port %d Read int status not zero: %d", 370 __func__, port->number, status); 371 return; 372 } 373 374 tty = tty_port_tty_get(&port->port); 375 if (urb->actual_length) { 376 377 /* BEGIN DEBUG */ 378 /* 379 dbg_data = kzalloc((3 * purb->actual_length + 10) 380 * sizeof(char), GFP_KERNEL); 381 if (! dbg_data) { 382 return; 383 } 384 for (i = 0; i < purb->actual_length; i++) { 385 sprintf(dbg_data +3*i, "%02X ", data[i]); 386 } 387 dbg(" <-- %s", dbg_data); 388 kfree(dbg_data); 389 */ 390 /* END DEBUG */ 391 392 tty_insert_flip_string(tty, data, urb->actual_length); 393 tty_flip_buffer_push(tty); 394 } 395 tty_kref_put(tty); 396 /* someone sets the dev to 0 if the close method has been called */ 397 port->interrupt_in_urb->dev = port->serial->dev; 398 399 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); 400 dbg("%s - port %d Send read URB returns: %i", 401 __func__, port->number, result); 402} 403 404 405static void kobil_write_callback(struct urb *purb) 406{ 407} 408 409 410static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port, 411 const unsigned char *buf, int count) 412{ 413 int length = 0; 414 int result = 0; 415 int todo = 0; 416 struct kobil_private *priv; 417 418 if (count == 0) { 419 dbg("%s - port %d write request of 0 bytes", 420 __func__, port->number); 421 return 0; 422 } 423 424 priv = usb_get_serial_port_data(port); 425 426 if (count > (KOBIL_BUF_LENGTH - priv->filled)) { 427 dbg("%s - port %d Error: write request bigger than buffer size", __func__, port->number); 428 return -ENOMEM; 429 } 430 431 /* Copy data to buffer */ 432 memcpy(priv->buf + priv->filled, buf, count); 433 usb_serial_debug_data(debug, &port->dev, __func__, count, 434 priv->buf + priv->filled); 435 priv->filled = priv->filled + count; 436 437 /* only send complete block. TWIN, KAAN SIM and adapter K 438 use the same protocol. */ 439 if (((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) || 440 ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4)))) { 441 /* stop reading (except TWIN and KAAN SIM) */ 442 if ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) 443 || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID)) 444 usb_kill_urb(port->interrupt_in_urb); 445 446 todo = priv->filled - priv->cur_pos; 447 448 while (todo > 0) { 449 /* max 8 byte in one urb (endpoint size) */ 450 length = (todo < 8) ? todo : 8; 451 /* copy data to transfer buffer */ 452 memcpy(port->write_urb->transfer_buffer, 453 priv->buf + priv->cur_pos, length); 454 usb_fill_int_urb(port->write_urb, 455 port->serial->dev, 456 usb_sndintpipe(port->serial->dev, 457 priv->write_int_endpoint_address), 458 port->write_urb->transfer_buffer, 459 length, 460 kobil_write_callback, 461 port, 462 8 463 ); 464 465 priv->cur_pos = priv->cur_pos + length; 466 result = usb_submit_urb(port->write_urb, GFP_NOIO); 467 dbg("%s - port %d Send write URB returns: %i", 468 __func__, port->number, result); 469 todo = priv->filled - priv->cur_pos; 470 471 if (todo > 0) 472 msleep(24); 473 } 474 475 priv->filled = 0; 476 priv->cur_pos = 0; 477 478 /* someone sets the dev to 0 if the close method 479 has been called */ 480 port->interrupt_in_urb->dev = port->serial->dev; 481 482 /* start reading (except TWIN and KAAN SIM) */ 483 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 484 priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) { 485 /* someone sets the dev to 0 if the close method has 486 been called */ 487 port->interrupt_in_urb->dev = port->serial->dev; 488 489 result = usb_submit_urb(port->interrupt_in_urb, 490 GFP_NOIO); 491 dbg("%s - port %d Send read URB returns: %i", 492 __func__, port->number, result); 493 } 494 } 495 return count; 496} 497 498 499static int kobil_write_room(struct tty_struct *tty) 500{ 501 /* dbg("%s - port %d", __func__, port->number); */ 502 /* FIXME */ 503 return 8; 504} 505 506 507static int kobil_tiocmget(struct tty_struct *tty, struct file *file) 508{ 509 struct usb_serial_port *port = tty->driver_data; 510 struct kobil_private *priv; 511 int result; 512 unsigned char *transfer_buffer; 513 int transfer_buffer_length = 8; 514 515 priv = usb_get_serial_port_data(port); 516 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID 517 || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 518 /* This device doesn't support ioctl calls */ 519 return -EINVAL; 520 } 521 522 /* allocate memory for transfer buffer */ 523 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 524 if (!transfer_buffer) 525 return -ENOMEM; 526 527 result = usb_control_msg(port->serial->dev, 528 usb_rcvctrlpipe(port->serial->dev, 0), 529 SUSBCRequest_GetStatusLineState, 530 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 531 0, 532 0, 533 transfer_buffer, 534 transfer_buffer_length, 535 KOBIL_TIMEOUT); 536 537 dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x", 538 __func__, port->number, result, transfer_buffer[0]); 539 540 result = 0; 541 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) 542 result = TIOCM_DSR; 543 kfree(transfer_buffer); 544 return result; 545} 546 547static int kobil_tiocmset(struct tty_struct *tty, struct file *file, 548 unsigned int set, unsigned int clear) 549{ 550 struct usb_serial_port *port = tty->driver_data; 551 struct kobil_private *priv; 552 int result; 553 int dtr = 0; 554 int rts = 0; 555 unsigned char *transfer_buffer; 556 int transfer_buffer_length = 8; 557 558 /* FIXME: locking ? */ 559 priv = usb_get_serial_port_data(port); 560 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID 561 || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 562 /* This device doesn't support ioctl calls */ 563 return -EINVAL; 564 } 565 566 /* allocate memory for transfer buffer */ 567 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 568 if (!transfer_buffer) 569 return -ENOMEM; 570 571 if (set & TIOCM_RTS) 572 rts = 1; 573 if (set & TIOCM_DTR) 574 dtr = 1; 575 if (clear & TIOCM_RTS) 576 rts = 0; 577 if (clear & TIOCM_DTR) 578 dtr = 0; 579 580 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) { 581 if (dtr != 0) 582 dbg("%s - port %d Setting DTR", 583 __func__, port->number); 584 else 585 dbg("%s - port %d Clearing DTR", 586 __func__, port->number); 587 result = usb_control_msg(port->serial->dev, 588 usb_rcvctrlpipe(port->serial->dev, 0), 589 SUSBCRequest_SetStatusLinesOrQueues, 590 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 591 ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR), 592 0, 593 transfer_buffer, 594 0, 595 KOBIL_TIMEOUT); 596 } else { 597 if (rts != 0) 598 dbg("%s - port %d Setting RTS", 599 __func__, port->number); 600 else 601 dbg("%s - port %d Clearing RTS", 602 __func__, port->number); 603 result = usb_control_msg(port->serial->dev, 604 usb_rcvctrlpipe(port->serial->dev, 0), 605 SUSBCRequest_SetStatusLinesOrQueues, 606 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 607 ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS), 608 0, 609 transfer_buffer, 610 0, 611 KOBIL_TIMEOUT); 612 } 613 dbg("%s - port %d Send set_status_line URB returns: %i", 614 __func__, port->number, result); 615 kfree(transfer_buffer); 616 return (result < 0) ? result : 0; 617} 618 619static void kobil_set_termios(struct tty_struct *tty, 620 struct usb_serial_port *port, struct ktermios *old) 621{ 622 struct kobil_private *priv; 623 int result; 624 unsigned short urb_val = 0; 625 int c_cflag = tty->termios->c_cflag; 626 speed_t speed; 627 628 priv = usb_get_serial_port_data(port); 629 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || 630 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 631 /* This device doesn't support ioctl calls */ 632 *tty->termios = *old; 633 return; 634 } 635 636 speed = tty_get_baud_rate(tty); 637 switch (speed) { 638 case 1200: 639 urb_val = SUSBCR_SBR_1200; 640 break; 641 default: 642 speed = 9600; 643 case 9600: 644 urb_val = SUSBCR_SBR_9600; 645 break; 646 } 647 urb_val |= (c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits : 648 SUSBCR_SPASB_1StopBit; 649 if (c_cflag & PARENB) { 650 if (c_cflag & PARODD) 651 urb_val |= SUSBCR_SPASB_OddParity; 652 else 653 urb_val |= SUSBCR_SPASB_EvenParity; 654 } else 655 urb_val |= SUSBCR_SPASB_NoParity; 656 tty->termios->c_cflag &= ~CMSPAR; 657 tty_encode_baud_rate(tty, speed, speed); 658 659 result = usb_control_msg(port->serial->dev, 660 usb_rcvctrlpipe(port->serial->dev, 0), 661 SUSBCRequest_SetBaudRateParityAndStopBits, 662 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 663 urb_val, 664 0, 665 NULL, 666 0, 667 KOBIL_TIMEOUT 668 ); 669} 670 671static int kobil_ioctl(struct tty_struct *tty, struct file *file, 672 unsigned int cmd, unsigned long arg) 673{ 674 struct usb_serial_port *port = tty->driver_data; 675 struct kobil_private *priv = usb_get_serial_port_data(port); 676 unsigned char *transfer_buffer; 677 int transfer_buffer_length = 8; 678 int result; 679 680 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || 681 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) 682 /* This device doesn't support ioctl calls */ 683 return -ENOIOCTLCMD; 684 685 switch (cmd) { 686 case TCFLSH: 687 transfer_buffer = kmalloc(transfer_buffer_length, GFP_KERNEL); 688 if (!transfer_buffer) 689 return -ENOBUFS; 690 691 result = usb_control_msg(port->serial->dev, 692 usb_rcvctrlpipe(port->serial->dev, 0), 693 SUSBCRequest_Misc, 694 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 695 SUSBCR_MSC_ResetAllQueues, 696 0, 697 NULL, /* transfer_buffer, */ 698 0, 699 KOBIL_TIMEOUT 700 ); 701 702 dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __func__, port->number, result); 703 kfree(transfer_buffer); 704 return (result < 0) ? -EIO: 0; 705 default: 706 return -ENOIOCTLCMD; 707 } 708} 709 710static int __init kobil_init(void) 711{ 712 int retval; 713 retval = usb_serial_register(&kobil_device); 714 if (retval) 715 goto failed_usb_serial_register; 716 retval = usb_register(&kobil_driver); 717 if (retval) 718 goto failed_usb_register; 719 720 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" 721 DRIVER_DESC "\n"); 722 723 return 0; 724failed_usb_register: 725 usb_serial_deregister(&kobil_device); 726failed_usb_serial_register: 727 return retval; 728} 729 730 731static void __exit kobil_exit(void) 732{ 733 usb_deregister(&kobil_driver); 734 usb_serial_deregister(&kobil_device); 735} 736 737module_init(kobil_init); 738module_exit(kobil_exit); 739 740MODULE_AUTHOR(DRIVER_AUTHOR); 741MODULE_DESCRIPTION(DRIVER_DESC); 742MODULE_LICENSE("GPL"); 743 744module_param(debug, bool, S_IRUGO | S_IWUSR); 745MODULE_PARM_DESC(debug, "Debug enabled or not"); 746