kobil_sct.c revision f9c99bb8b3a1ec81af68d484a551307326c2e933
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, 74 struct usb_serial_port *port, struct file *filp); 75static void kobil_close(struct usb_serial_port *port); 76static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port, 77 const unsigned char *buf, int count); 78static int kobil_write_room(struct tty_struct *tty); 79static int kobil_ioctl(struct tty_struct *tty, struct file *file, 80 unsigned int cmd, unsigned long arg); 81static int kobil_tiocmget(struct tty_struct *tty, struct file *file); 82static int kobil_tiocmset(struct tty_struct *tty, struct file *file, 83 unsigned int set, unsigned int clear); 84static void kobil_read_int_callback(struct urb *urb); 85static void kobil_write_callback(struct urb *purb); 86static void kobil_set_termios(struct tty_struct *tty, 87 struct usb_serial_port *port, struct ktermios *old); 88 89 90static struct usb_device_id id_table [] = { 91 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) }, 92 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_K_PRODUCT_ID) }, 93 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_USBTWIN_PRODUCT_ID) }, 94 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_KAAN_SIM_PRODUCT_ID) }, 95 { } /* Terminating entry */ 96}; 97 98 99MODULE_DEVICE_TABLE(usb, id_table); 100 101static struct usb_driver kobil_driver = { 102 .name = "kobil", 103 .probe = usb_serial_probe, 104 .disconnect = usb_serial_disconnect, 105 .id_table = id_table, 106 .no_dynamic_id = 1, 107}; 108 109 110static struct usb_serial_driver kobil_device = { 111 .driver = { 112 .owner = THIS_MODULE, 113 .name = "kobil", 114 }, 115 .description = "KOBIL USB smart card terminal", 116 .usb_driver = &kobil_driver, 117 .id_table = id_table, 118 .num_ports = 1, 119 .attach = kobil_startup, 120 .release = kobil_release, 121 .ioctl = kobil_ioctl, 122 .set_termios = kobil_set_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} 212 213 214static int kobil_open(struct tty_struct *tty, 215 struct usb_serial_port *port, struct file *filp) 216{ 217 int result = 0; 218 struct kobil_private *priv; 219 unsigned char *transfer_buffer; 220 int transfer_buffer_length = 8; 221 int write_urb_transfer_buffer_length = 8; 222 223 dbg("%s - port %d", __func__, port->number); 224 priv = usb_get_serial_port_data(port); 225 226 /* someone sets the dev to 0 if the close method has been called */ 227 port->interrupt_in_urb->dev = port->serial->dev; 228 229 if (tty) { 230 231 /* Default to echo off and other sane device settings */ 232 tty->termios->c_lflag = 0; 233 tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | 234 XCASE); 235 tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF; 236 /* do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) */ 237 tty->termios->c_oflag &= ~ONLCR; 238 } 239 /* allocate memory for transfer buffer */ 240 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 241 if (!transfer_buffer) 242 return -ENOMEM; 243 244 /* allocate write_urb */ 245 if (!port->write_urb) { 246 dbg("%s - port %d Allocating port->write_urb", 247 __func__, port->number); 248 port->write_urb = usb_alloc_urb(0, GFP_KERNEL); 249 if (!port->write_urb) { 250 dbg("%s - port %d usb_alloc_urb failed", 251 __func__, port->number); 252 kfree(transfer_buffer); 253 return -ENOMEM; 254 } 255 } 256 257 /* allocate memory for write_urb transfer buffer */ 258 port->write_urb->transfer_buffer = 259 kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL); 260 if (!port->write_urb->transfer_buffer) { 261 kfree(transfer_buffer); 262 usb_free_urb(port->write_urb); 263 port->write_urb = NULL; 264 return -ENOMEM; 265 } 266 267 /* get hardware version */ 268 result = usb_control_msg(port->serial->dev, 269 usb_rcvctrlpipe(port->serial->dev, 0), 270 SUSBCRequest_GetMisc, 271 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 272 SUSBCR_MSC_GetHWVersion, 273 0, 274 transfer_buffer, 275 transfer_buffer_length, 276 KOBIL_TIMEOUT 277 ); 278 dbg("%s - port %d Send get_HW_version URB returns: %i", 279 __func__, port->number, result); 280 dbg("Harware version: %i.%i.%i", 281 transfer_buffer[0], transfer_buffer[1], transfer_buffer[2]); 282 283 /* get firmware version */ 284 result = usb_control_msg(port->serial->dev, 285 usb_rcvctrlpipe(port->serial->dev, 0), 286 SUSBCRequest_GetMisc, 287 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 288 SUSBCR_MSC_GetFWVersion, 289 0, 290 transfer_buffer, 291 transfer_buffer_length, 292 KOBIL_TIMEOUT 293 ); 294 dbg("%s - port %d Send get_FW_version URB returns: %i", 295 __func__, port->number, result); 296 dbg("Firmware version: %i.%i.%i", 297 transfer_buffer[0], transfer_buffer[1], transfer_buffer[2]); 298 299 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 300 priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) { 301 /* Setting Baudrate, Parity and Stopbits */ 302 result = usb_control_msg(port->serial->dev, 303 usb_rcvctrlpipe(port->serial->dev, 0), 304 SUSBCRequest_SetBaudRateParityAndStopBits, 305 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 306 SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity | 307 SUSBCR_SPASB_1StopBit, 308 0, 309 transfer_buffer, 310 0, 311 KOBIL_TIMEOUT 312 ); 313 dbg("%s - port %d Send set_baudrate URB returns: %i", 314 __func__, port->number, result); 315 316 /* reset all queues */ 317 result = usb_control_msg(port->serial->dev, 318 usb_rcvctrlpipe(port->serial->dev, 0), 319 SUSBCRequest_Misc, 320 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 321 SUSBCR_MSC_ResetAllQueues, 322 0, 323 transfer_buffer, 324 0, 325 KOBIL_TIMEOUT 326 ); 327 dbg("%s - port %d Send reset_all_queues URB returns: %i", 328 __func__, port->number, result); 329 } 330 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || 331 priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 332 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 333 /* start reading (Adapter B 'cause PNP string) */ 334 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); 335 dbg("%s - port %d Send read URB returns: %i", 336 __func__, port->number, result); 337 } 338 339 kfree(transfer_buffer); 340 return 0; 341} 342 343 344static void kobil_close(struct usb_serial_port *port) 345{ 346 dbg("%s - port %d", __func__, port->number); 347 348 /* FIXME: Add rts/dtr methods */ 349 if (port->write_urb) { 350 usb_kill_urb(port->write_urb); 351 usb_free_urb(port->write_urb); 352 port->write_urb = NULL; 353 } 354 usb_kill_urb(port->interrupt_in_urb); 355} 356 357 358static void kobil_read_int_callback(struct urb *urb) 359{ 360 int result; 361 struct usb_serial_port *port = urb->context; 362 struct tty_struct *tty; 363 unsigned char *data = urb->transfer_buffer; 364 int status = urb->status; 365/* char *dbg_data; */ 366 367 dbg("%s - port %d", __func__, port->number); 368 369 if (status) { 370 dbg("%s - port %d Read int status not zero: %d", 371 __func__, port->number, status); 372 return; 373 } 374 375 tty = tty_port_tty_get(&port->port); 376 if (urb->actual_length) { 377 378 /* BEGIN DEBUG */ 379 /* 380 dbg_data = kzalloc((3 * purb->actual_length + 10) 381 * sizeof(char), GFP_KERNEL); 382 if (! dbg_data) { 383 return; 384 } 385 for (i = 0; i < purb->actual_length; i++) { 386 sprintf(dbg_data +3*i, "%02X ", data[i]); 387 } 388 dbg(" <-- %s", dbg_data); 389 kfree(dbg_data); 390 */ 391 /* END DEBUG */ 392 393 tty_buffer_request_room(tty, urb->actual_length); 394 tty_insert_flip_string(tty, data, urb->actual_length); 395 tty_flip_buffer_push(tty); 396 } 397 tty_kref_put(tty); 398 /* someone sets the dev to 0 if the close method has been called */ 399 port->interrupt_in_urb->dev = port->serial->dev; 400 401 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); 402 dbg("%s - port %d Send read URB returns: %i", 403 __func__, port->number, result); 404} 405 406 407static void kobil_write_callback(struct urb *purb) 408{ 409} 410 411 412static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port, 413 const unsigned char *buf, int count) 414{ 415 int length = 0; 416 int result = 0; 417 int todo = 0; 418 struct kobil_private *priv; 419 420 if (count == 0) { 421 dbg("%s - port %d write request of 0 bytes", 422 __func__, port->number); 423 return 0; 424 } 425 426 priv = usb_get_serial_port_data(port); 427 428 if (count > (KOBIL_BUF_LENGTH - priv->filled)) { 429 dbg("%s - port %d Error: write request bigger than buffer size", __func__, port->number); 430 return -ENOMEM; 431 } 432 433 /* Copy data to buffer */ 434 memcpy(priv->buf + priv->filled, buf, count); 435 usb_serial_debug_data(debug, &port->dev, __func__, count, 436 priv->buf + priv->filled); 437 priv->filled = priv->filled + count; 438 439 /* only send complete block. TWIN, KAAN SIM and adapter K 440 use the same protocol. */ 441 if (((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) || 442 ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4)))) { 443 /* stop reading (except TWIN and KAAN SIM) */ 444 if ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) 445 || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID)) 446 usb_kill_urb(port->interrupt_in_urb); 447 448 todo = priv->filled - priv->cur_pos; 449 450 while (todo > 0) { 451 /* max 8 byte in one urb (endpoint size) */ 452 length = (todo < 8) ? todo : 8; 453 /* copy data to transfer buffer */ 454 memcpy(port->write_urb->transfer_buffer, 455 priv->buf + priv->cur_pos, length); 456 usb_fill_int_urb(port->write_urb, 457 port->serial->dev, 458 usb_sndintpipe(port->serial->dev, 459 priv->write_int_endpoint_address), 460 port->write_urb->transfer_buffer, 461 length, 462 kobil_write_callback, 463 port, 464 8 465 ); 466 467 priv->cur_pos = priv->cur_pos + length; 468 result = usb_submit_urb(port->write_urb, GFP_NOIO); 469 dbg("%s - port %d Send write URB returns: %i", 470 __func__, port->number, result); 471 todo = priv->filled - priv->cur_pos; 472 473 if (todo > 0) 474 msleep(24); 475 } 476 477 priv->filled = 0; 478 priv->cur_pos = 0; 479 480 /* someone sets the dev to 0 if the close method 481 has been called */ 482 port->interrupt_in_urb->dev = port->serial->dev; 483 484 /* start reading (except TWIN and KAAN SIM) */ 485 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 486 priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) { 487 /* someone sets the dev to 0 if the close method has 488 been called */ 489 port->interrupt_in_urb->dev = port->serial->dev; 490 491 result = usb_submit_urb(port->interrupt_in_urb, 492 GFP_NOIO); 493 dbg("%s - port %d Send read URB returns: %i", 494 __func__, port->number, result); 495 } 496 } 497 return count; 498} 499 500 501static int kobil_write_room(struct tty_struct *tty) 502{ 503 /* dbg("%s - port %d", __func__, port->number); */ 504 /* FIXME */ 505 return 8; 506} 507 508 509static int kobil_tiocmget(struct tty_struct *tty, struct file *file) 510{ 511 struct usb_serial_port *port = tty->driver_data; 512 struct kobil_private *priv; 513 int result; 514 unsigned char *transfer_buffer; 515 int transfer_buffer_length = 8; 516 517 priv = usb_get_serial_port_data(port); 518 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID 519 || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 520 /* This device doesn't support ioctl calls */ 521 return -EINVAL; 522 } 523 524 /* allocate memory for transfer buffer */ 525 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 526 if (!transfer_buffer) 527 return -ENOMEM; 528 529 result = usb_control_msg(port->serial->dev, 530 usb_rcvctrlpipe(port->serial->dev, 0), 531 SUSBCRequest_GetStatusLineState, 532 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 533 0, 534 0, 535 transfer_buffer, 536 transfer_buffer_length, 537 KOBIL_TIMEOUT); 538 539 dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x", 540 __func__, port->number, result, transfer_buffer[0]); 541 542 result = 0; 543 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) 544 result = TIOCM_DSR; 545 kfree(transfer_buffer); 546 return result; 547} 548 549static int kobil_tiocmset(struct tty_struct *tty, struct file *file, 550 unsigned int set, unsigned int clear) 551{ 552 struct usb_serial_port *port = tty->driver_data; 553 struct kobil_private *priv; 554 int result; 555 int dtr = 0; 556 int rts = 0; 557 unsigned char *transfer_buffer; 558 int transfer_buffer_length = 8; 559 560 /* FIXME: locking ? */ 561 priv = usb_get_serial_port_data(port); 562 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID 563 || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 564 /* This device doesn't support ioctl calls */ 565 return -EINVAL; 566 } 567 568 /* allocate memory for transfer buffer */ 569 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 570 if (!transfer_buffer) 571 return -ENOMEM; 572 573 if (set & TIOCM_RTS) 574 rts = 1; 575 if (set & TIOCM_DTR) 576 dtr = 1; 577 if (clear & TIOCM_RTS) 578 rts = 0; 579 if (clear & TIOCM_DTR) 580 dtr = 0; 581 582 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) { 583 if (dtr != 0) 584 dbg("%s - port %d Setting DTR", 585 __func__, port->number); 586 else 587 dbg("%s - port %d Clearing DTR", 588 __func__, port->number); 589 result = usb_control_msg(port->serial->dev, 590 usb_rcvctrlpipe(port->serial->dev, 0), 591 SUSBCRequest_SetStatusLinesOrQueues, 592 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 593 ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR), 594 0, 595 transfer_buffer, 596 0, 597 KOBIL_TIMEOUT); 598 } else { 599 if (rts != 0) 600 dbg("%s - port %d Setting RTS", 601 __func__, port->number); 602 else 603 dbg("%s - port %d Clearing RTS", 604 __func__, port->number); 605 result = usb_control_msg(port->serial->dev, 606 usb_rcvctrlpipe(port->serial->dev, 0), 607 SUSBCRequest_SetStatusLinesOrQueues, 608 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 609 ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS), 610 0, 611 transfer_buffer, 612 0, 613 KOBIL_TIMEOUT); 614 } 615 dbg("%s - port %d Send set_status_line URB returns: %i", 616 __func__, port->number, result); 617 kfree(transfer_buffer); 618 return (result < 0) ? result : 0; 619} 620 621static void kobil_set_termios(struct tty_struct *tty, 622 struct usb_serial_port *port, struct ktermios *old) 623{ 624 struct kobil_private *priv; 625 int result; 626 unsigned short urb_val = 0; 627 int c_cflag = tty->termios->c_cflag; 628 speed_t speed; 629 void *settings; 630 631 priv = usb_get_serial_port_data(port); 632 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || 633 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 634 /* This device doesn't support ioctl calls */ 635 *tty->termios = *old; 636 return; 637 } 638 639 speed = tty_get_baud_rate(tty); 640 switch (speed) { 641 case 1200: 642 urb_val = SUSBCR_SBR_1200; 643 break; 644 default: 645 speed = 9600; 646 case 9600: 647 urb_val = SUSBCR_SBR_9600; 648 break; 649 } 650 urb_val |= (c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits : 651 SUSBCR_SPASB_1StopBit; 652 653 settings = kzalloc(50, GFP_KERNEL); 654 if (!settings) 655 return; 656 657 sprintf(settings, "%d ", speed); 658 659 if (c_cflag & PARENB) { 660 if (c_cflag & PARODD) { 661 urb_val |= SUSBCR_SPASB_OddParity; 662 strcat(settings, "Odd Parity"); 663 } else { 664 urb_val |= SUSBCR_SPASB_EvenParity; 665 strcat(settings, "Even Parity"); 666 } 667 } else { 668 urb_val |= SUSBCR_SPASB_NoParity; 669 strcat(settings, "No Parity"); 670 } 671 tty->termios->c_cflag &= ~CMSPAR; 672 tty_encode_baud_rate(tty, speed, speed); 673 674 result = usb_control_msg(port->serial->dev, 675 usb_rcvctrlpipe(port->serial->dev, 0), 676 SUSBCRequest_SetBaudRateParityAndStopBits, 677 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 678 urb_val, 679 0, 680 settings, 681 0, 682 KOBIL_TIMEOUT 683 ); 684 kfree(settings); 685} 686 687static int kobil_ioctl(struct tty_struct *tty, struct file *file, 688 unsigned int cmd, unsigned long arg) 689{ 690 struct usb_serial_port *port = tty->driver_data; 691 struct kobil_private *priv = usb_get_serial_port_data(port); 692 unsigned char *transfer_buffer; 693 int transfer_buffer_length = 8; 694 int result; 695 696 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || 697 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) 698 /* This device doesn't support ioctl calls */ 699 return -ENOIOCTLCMD; 700 701 switch (cmd) { 702 case TCFLSH: 703 transfer_buffer = kmalloc(transfer_buffer_length, GFP_KERNEL); 704 if (!transfer_buffer) 705 return -ENOBUFS; 706 707 result = usb_control_msg(port->serial->dev, 708 usb_rcvctrlpipe(port->serial->dev, 0), 709 SUSBCRequest_Misc, 710 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 711 SUSBCR_MSC_ResetAllQueues, 712 0, 713 NULL, /* transfer_buffer, */ 714 0, 715 KOBIL_TIMEOUT 716 ); 717 718 dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __func__, port->number, result); 719 kfree(transfer_buffer); 720 return (result < 0) ? -EIO: 0; 721 default: 722 return -ENOIOCTLCMD; 723 } 724} 725 726static int __init kobil_init(void) 727{ 728 int retval; 729 retval = usb_serial_register(&kobil_device); 730 if (retval) 731 goto failed_usb_serial_register; 732 retval = usb_register(&kobil_driver); 733 if (retval) 734 goto failed_usb_register; 735 736 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" 737 DRIVER_DESC "\n"); 738 739 return 0; 740failed_usb_register: 741 usb_serial_deregister(&kobil_device); 742failed_usb_serial_register: 743 return retval; 744} 745 746 747static void __exit kobil_exit(void) 748{ 749 usb_deregister(&kobil_driver); 750 usb_serial_deregister(&kobil_device); 751} 752 753module_init(kobil_init); 754module_exit(kobil_exit); 755 756MODULE_AUTHOR(DRIVER_AUTHOR); 757MODULE_DESCRIPTION(DRIVER_DESC); 758MODULE_LICENSE("GPL"); 759 760module_param(debug, bool, S_IRUGO | S_IWUSR); 761MODULE_PARM_DESC(debug, "Debug enabled or not"); 762