kobil_sct.c revision 0ba4034e20abf372dae6c6cabeeeab600acb5889
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 <asm/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_shutdown (struct usb_serial *serial); 73static int kobil_open (struct usb_serial_port *port, struct file *filp); 74static void kobil_close (struct usb_serial_port *port, struct file *filp); 75static int kobil_write (struct usb_serial_port *port, 76 const unsigned char *buf, int count); 77static int kobil_write_room(struct usb_serial_port *port); 78static int kobil_ioctl(struct usb_serial_port *port, struct file *file, 79 unsigned int cmd, unsigned long arg); 80static int kobil_tiocmget(struct usb_serial_port *port, struct file *file); 81static int kobil_tiocmset(struct usb_serial_port *port, 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 usb_serial_port *port, struct ktermios *old); 86 87 88static struct usb_device_id id_table [] = { 89 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) }, 90 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_K_PRODUCT_ID) }, 91 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_USBTWIN_PRODUCT_ID) }, 92 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_KAAN_SIM_PRODUCT_ID) }, 93 { } /* Terminating entry */ 94}; 95 96 97MODULE_DEVICE_TABLE (usb, id_table); 98 99static struct usb_driver kobil_driver = { 100 .name = "kobil", 101 .probe = usb_serial_probe, 102 .disconnect = usb_serial_disconnect, 103 .id_table = id_table, 104 .no_dynamic_id = 1, 105}; 106 107 108static struct usb_serial_driver kobil_device = { 109 .driver = { 110 .owner = THIS_MODULE, 111 .name = "kobil", 112 }, 113 .description = "KOBIL USB smart card terminal", 114 .usb_driver = &kobil_driver, 115 .id_table = id_table, 116 .num_ports = 1, 117 .attach = kobil_startup, 118 .shutdown = kobil_shutdown, 119 .ioctl = kobil_ioctl, 120 .set_termios = kobil_set_termios, 121 .tiocmget = kobil_tiocmget, 122 .tiocmset = kobil_tiocmset, 123 .open = kobil_open, 124 .close = kobil_close, 125 .write = kobil_write, 126 .write_room = kobil_write_room, 127 .read_int_callback = kobil_read_int_callback, 128}; 129 130 131struct kobil_private { 132 int write_int_endpoint_address; 133 int read_int_endpoint_address; 134 unsigned char buf[KOBIL_BUF_LENGTH]; // buffer for the APDU to send 135 int filled; // index of the last char in buf 136 int cur_pos; // index of the next char to send in buf 137 __u16 device_type; 138}; 139 140 141static int kobil_startup (struct usb_serial *serial) 142{ 143 int i; 144 struct kobil_private *priv; 145 struct usb_device *pdev; 146 struct usb_host_config *actconfig; 147 struct usb_interface *interface; 148 struct usb_host_interface *altsetting; 149 struct usb_host_endpoint *endpoint; 150 151 priv = kmalloc(sizeof(struct kobil_private), GFP_KERNEL); 152 if (!priv){ 153 return -ENOMEM; 154 } 155 156 priv->filled = 0; 157 priv->cur_pos = 0; 158 priv->device_type = le16_to_cpu(serial->dev->descriptor.idProduct); 159 160 switch (priv->device_type){ 161 case KOBIL_ADAPTER_B_PRODUCT_ID: 162 printk(KERN_DEBUG "KOBIL B1 PRO / KAAN PRO detected\n"); 163 break; 164 case KOBIL_ADAPTER_K_PRODUCT_ID: 165 printk(KERN_DEBUG "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n"); 166 break; 167 case KOBIL_USBTWIN_PRODUCT_ID: 168 printk(KERN_DEBUG "KOBIL USBTWIN detected\n"); 169 break; 170 case KOBIL_KAAN_SIM_PRODUCT_ID: 171 printk(KERN_DEBUG "KOBIL KAAN SIM detected\n"); 172 break; 173 } 174 usb_set_serial_port_data(serial->port[0], priv); 175 176 // search for the necessary endpoints 177 pdev = serial->dev; 178 actconfig = pdev->actconfig; 179 interface = actconfig->interface[0]; 180 altsetting = interface->cur_altsetting; 181 endpoint = altsetting->endpoint; 182 183 for (i = 0; i < altsetting->desc.bNumEndpoints; i++) { 184 endpoint = &altsetting->endpoint[i]; 185 if (usb_endpoint_is_int_out(&endpoint->desc)) { 186 dbg("%s Found interrupt out endpoint. Address: %d", __FUNCTION__, endpoint->desc.bEndpointAddress); 187 priv->write_int_endpoint_address = endpoint->desc.bEndpointAddress; 188 } 189 if (usb_endpoint_is_int_in(&endpoint->desc)) { 190 dbg("%s Found interrupt in endpoint. Address: %d", __FUNCTION__, endpoint->desc.bEndpointAddress); 191 priv->read_int_endpoint_address = endpoint->desc.bEndpointAddress; 192 } 193 } 194 return 0; 195} 196 197 198static void kobil_shutdown (struct usb_serial *serial) 199{ 200 int i; 201 dbg("%s - port %d", __FUNCTION__, serial->port[0]->number); 202 203 for (i=0; i < serial->num_ports; ++i) { 204 while (serial->port[i]->open_count > 0) { 205 kobil_close (serial->port[i], NULL); 206 } 207 kfree(usb_get_serial_port_data(serial->port[i])); 208 usb_set_serial_port_data(serial->port[i], NULL); 209 } 210} 211 212 213static int kobil_open (struct usb_serial_port *port, struct file *filp) 214{ 215 int result = 0; 216 struct kobil_private *priv; 217 unsigned char *transfer_buffer; 218 int transfer_buffer_length = 8; 219 int write_urb_transfer_buffer_length = 8; 220 221 dbg("%s - port %d", __FUNCTION__, port->number); 222 priv = usb_get_serial_port_data(port); 223 224 // someone sets the dev to 0 if the close method has been called 225 port->interrupt_in_urb->dev = port->serial->dev; 226 227 228 /* force low_latency on so that our tty_push actually forces 229 * the data through, otherwise it is scheduled, and with high 230 * data rates (like with OHCI) data can get lost. 231 */ 232 port->tty->low_latency = 1; 233 234 // without this, every push_tty_char is echoed :-( 235 port->tty->termios->c_lflag = 0; 236 port->tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE); 237 port->tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF; 238 port->tty->termios->c_oflag &= ~ONLCR; // do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) 239 240 // allocate memory for transfer buffer 241 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 242 if (! transfer_buffer) { 243 return -ENOMEM; 244 } 245 246 // allocate write_urb 247 if (!port->write_urb) { 248 dbg("%s - port %d Allocating port->write_urb", __FUNCTION__, port->number); 249 port->write_urb = usb_alloc_urb(0, GFP_KERNEL); 250 if (!port->write_urb) { 251 dbg("%s - port %d usb_alloc_urb failed", __FUNCTION__, 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 = kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL); 259 if (! port->write_urb->transfer_buffer) { 260 kfree(transfer_buffer); 261 usb_free_urb(port->write_urb); 262 port->write_urb = NULL; 263 return -ENOMEM; 264 } 265 266 // get hardware version 267 result = usb_control_msg( port->serial->dev, 268 usb_rcvctrlpipe(port->serial->dev, 0 ), 269 SUSBCRequest_GetMisc, 270 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 271 SUSBCR_MSC_GetHWVersion, 272 0, 273 transfer_buffer, 274 transfer_buffer_length, 275 KOBIL_TIMEOUT 276 ); 277 dbg("%s - port %d Send get_HW_version URB returns: %i", __FUNCTION__, port->number, result); 278 dbg("Harware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] ); 279 280 // get firmware version 281 result = usb_control_msg( port->serial->dev, 282 usb_rcvctrlpipe(port->serial->dev, 0 ), 283 SUSBCRequest_GetMisc, 284 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 285 SUSBCR_MSC_GetFWVersion, 286 0, 287 transfer_buffer, 288 transfer_buffer_length, 289 KOBIL_TIMEOUT 290 ); 291 dbg("%s - port %d Send get_FW_version URB returns: %i", __FUNCTION__, port->number, result); 292 dbg("Firmware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] ); 293 294 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) { 295 // Setting Baudrate, Parity and Stopbits 296 result = usb_control_msg( port->serial->dev, 297 usb_rcvctrlpipe(port->serial->dev, 0 ), 298 SUSBCRequest_SetBaudRateParityAndStopBits, 299 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 300 SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity | SUSBCR_SPASB_1StopBit, 301 0, 302 transfer_buffer, 303 0, 304 KOBIL_TIMEOUT 305 ); 306 dbg("%s - port %d Send set_baudrate URB returns: %i", __FUNCTION__, port->number, result); 307 308 // reset all queues 309 result = usb_control_msg( port->serial->dev, 310 usb_rcvctrlpipe(port->serial->dev, 0 ), 311 SUSBCRequest_Misc, 312 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 313 SUSBCR_MSC_ResetAllQueues, 314 0, 315 transfer_buffer, 316 0, 317 KOBIL_TIMEOUT 318 ); 319 dbg("%s - port %d Send reset_all_queues URB returns: %i", __FUNCTION__, port->number, result); 320 } 321 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 322 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 323 // start reading (Adapter B 'cause PNP string) 324 result = usb_submit_urb( port->interrupt_in_urb, GFP_ATOMIC ); 325 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); 326 } 327 328 kfree(transfer_buffer); 329 return 0; 330} 331 332 333static void kobil_close (struct usb_serial_port *port, struct file *filp) 334{ 335 dbg("%s - port %d", __FUNCTION__, port->number); 336 337 if (port->write_urb) { 338 usb_kill_urb(port->write_urb); 339 usb_free_urb( port->write_urb ); 340 port->write_urb = NULL; 341 } 342 usb_kill_urb(port->interrupt_in_urb); 343} 344 345 346static void kobil_read_int_callback(struct urb *urb) 347{ 348 int result; 349 struct usb_serial_port *port = urb->context; 350 struct tty_struct *tty; 351 unsigned char *data = urb->transfer_buffer; 352 int status = urb->status; 353// char *dbg_data; 354 355 dbg("%s - port %d", __FUNCTION__, port->number); 356 357 if (status) { 358 dbg("%s - port %d Read int status not zero: %d", 359 __FUNCTION__, port->number, status); 360 return; 361 } 362 363 tty = port->tty; 364 if (urb->actual_length) { 365 366 // BEGIN DEBUG 367 /* 368 dbg_data = kzalloc((3 * purb->actual_length + 10) * sizeof(char), GFP_KERNEL); 369 if (! dbg_data) { 370 return; 371 } 372 for (i = 0; i < purb->actual_length; i++) { 373 sprintf(dbg_data +3*i, "%02X ", data[i]); 374 } 375 dbg(" <-- %s", dbg_data ); 376 kfree(dbg_data); 377 */ 378 // END DEBUG 379 380 tty_buffer_request_room(tty, urb->actual_length); 381 tty_insert_flip_string(tty, data, urb->actual_length); 382 tty_flip_buffer_push(tty); 383 } 384 385 // someone sets the dev to 0 if the close method has been called 386 port->interrupt_in_urb->dev = port->serial->dev; 387 388 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); 389 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); 390} 391 392 393static void kobil_write_callback( struct urb *purb ) 394{ 395} 396 397 398static int kobil_write (struct usb_serial_port *port, 399 const unsigned char *buf, int count) 400{ 401 int length = 0; 402 int result = 0; 403 int todo = 0; 404 struct kobil_private * priv; 405 406 if (count == 0) { 407 dbg("%s - port %d write request of 0 bytes", __FUNCTION__, port->number); 408 return 0; 409 } 410 411 priv = usb_get_serial_port_data(port); 412 413 if (count > (KOBIL_BUF_LENGTH - priv->filled)) { 414 dbg("%s - port %d Error: write request bigger than buffer size", __FUNCTION__, port->number); 415 return -ENOMEM; 416 } 417 418 // Copy data to buffer 419 memcpy (priv->buf + priv->filled, buf, count); 420 421 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, priv->buf + priv->filled); 422 423 priv->filled = priv->filled + count; 424 425 426 // only send complete block. TWIN, KAAN SIM and adapter K use the same protocol. 427 if ( ((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) || 428 ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4))) ) { 429 430 // stop reading (except TWIN and KAAN SIM) 431 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) 432 usb_kill_urb(port->interrupt_in_urb); 433 434 todo = priv->filled - priv->cur_pos; 435 436 while(todo > 0) { 437 // max 8 byte in one urb (endpoint size) 438 length = (todo < 8) ? todo : 8; 439 // copy data to transfer buffer 440 memcpy(port->write_urb->transfer_buffer, priv->buf + priv->cur_pos, length ); 441 usb_fill_int_urb( port->write_urb, 442 port->serial->dev, 443 usb_sndintpipe(port->serial->dev, priv->write_int_endpoint_address), 444 port->write_urb->transfer_buffer, 445 length, 446 kobil_write_callback, 447 port, 448 8 449 ); 450 451 priv->cur_pos = priv->cur_pos + length; 452 result = usb_submit_urb( port->write_urb, GFP_NOIO ); 453 dbg("%s - port %d Send write URB returns: %i", __FUNCTION__, port->number, result); 454 todo = priv->filled - priv->cur_pos; 455 456 if (todo > 0) { 457 msleep(24); 458 } 459 460 } // end while 461 462 priv->filled = 0; 463 priv->cur_pos = 0; 464 465 // someone sets the dev to 0 if the close method has been called 466 port->interrupt_in_urb->dev = port->serial->dev; 467 468 // start reading (except TWIN and KAAN SIM) 469 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) { 470 // someone sets the dev to 0 if the close method has been called 471 port->interrupt_in_urb->dev = port->serial->dev; 472 473 result = usb_submit_urb( port->interrupt_in_urb, GFP_NOIO ); 474 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); 475 } 476 } 477 return count; 478} 479 480 481static int kobil_write_room (struct usb_serial_port *port) 482{ 483 //dbg("%s - port %d", __FUNCTION__, port->number); 484 return 8; 485} 486 487 488static int kobil_tiocmget(struct usb_serial_port *port, struct file *file) 489{ 490 struct kobil_private * priv; 491 int result; 492 unsigned char *transfer_buffer; 493 int transfer_buffer_length = 8; 494 495 priv = usb_get_serial_port_data(port); 496 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) { 497 // This device doesn't support ioctl calls 498 return -EINVAL; 499 } 500 501 // allocate memory for transfer buffer 502 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 503 if (!transfer_buffer) { 504 return -ENOMEM; 505 } 506 507 result = usb_control_msg( port->serial->dev, 508 usb_rcvctrlpipe(port->serial->dev, 0 ), 509 SUSBCRequest_GetStatusLineState, 510 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 511 0, 512 0, 513 transfer_buffer, 514 transfer_buffer_length, 515 KOBIL_TIMEOUT); 516 517 dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x", 518 __FUNCTION__, port->number, result, transfer_buffer[0]); 519 520 result = 0; 521 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) 522 result = TIOCM_DSR; 523 kfree(transfer_buffer); 524 return result; 525} 526 527static int kobil_tiocmset(struct usb_serial_port *port, struct file *file, 528 unsigned int set, unsigned int clear) 529{ 530 struct kobil_private * priv; 531 int result; 532 int dtr = 0; 533 int rts = 0; 534 unsigned char *transfer_buffer; 535 int transfer_buffer_length = 8; 536 537 /* FIXME: locking ? */ 538 priv = usb_get_serial_port_data(port); 539 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) { 540 // This device doesn't support ioctl calls 541 return -EINVAL; 542 } 543 544 // allocate memory for transfer buffer 545 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 546 if (! transfer_buffer) { 547 return -ENOMEM; 548 } 549 550 if (set & TIOCM_RTS) 551 rts = 1; 552 if (set & TIOCM_DTR) 553 dtr = 1; 554 if (clear & TIOCM_RTS) 555 rts = 0; 556 if (clear & TIOCM_DTR) 557 dtr = 0; 558 559 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) { 560 if (dtr != 0) 561 dbg("%s - port %d Setting DTR", __FUNCTION__, port->number); 562 else 563 dbg("%s - port %d Clearing DTR", __FUNCTION__, port->number); 564 result = usb_control_msg( port->serial->dev, 565 usb_rcvctrlpipe(port->serial->dev, 0 ), 566 SUSBCRequest_SetStatusLinesOrQueues, 567 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 568 ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR), 569 0, 570 transfer_buffer, 571 0, 572 KOBIL_TIMEOUT); 573 } else { 574 if (rts != 0) 575 dbg("%s - port %d Setting RTS", __FUNCTION__, port->number); 576 else 577 dbg("%s - port %d Clearing RTS", __FUNCTION__, port->number); 578 result = usb_control_msg( port->serial->dev, 579 usb_rcvctrlpipe(port->serial->dev, 0 ), 580 SUSBCRequest_SetStatusLinesOrQueues, 581 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 582 ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS), 583 0, 584 transfer_buffer, 585 0, 586 KOBIL_TIMEOUT); 587 } 588 dbg("%s - port %d Send set_status_line URB returns: %i", __FUNCTION__, port->number, result); 589 kfree(transfer_buffer); 590 return (result < 0) ? result : 0; 591} 592 593static void kobil_set_termios(struct usb_serial_port *port, struct ktermios *old) 594{ 595 struct kobil_private * priv; 596 int result; 597 unsigned short urb_val = 0; 598 int c_cflag = port->tty->termios->c_cflag; 599 speed_t speed; 600 void * settings; 601 602 priv = usb_get_serial_port_data(port); 603 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) 604 // This device doesn't support ioctl calls 605 return; 606 607 switch (speed = tty_get_baud_rate(port->tty)) { 608 case 1200: 609 urb_val = SUSBCR_SBR_1200; 610 break; 611 default: 612 speed = 9600; 613 case 9600: 614 urb_val = SUSBCR_SBR_9600; 615 break; 616 } 617 urb_val |= (c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits : SUSBCR_SPASB_1StopBit; 618 619 settings = kzalloc(50, GFP_KERNEL); 620 if (! settings) 621 return; 622 623 sprintf(settings, "%d ", speed); 624 625 if (c_cflag & PARENB) { 626 if (c_cflag & PARODD) { 627 urb_val |= SUSBCR_SPASB_OddParity; 628 strcat(settings, "Odd Parity"); 629 } else { 630 urb_val |= SUSBCR_SPASB_EvenParity; 631 strcat(settings, "Even Parity"); 632 } 633 } else { 634 urb_val |= SUSBCR_SPASB_NoParity; 635 strcat(settings, "No Parity"); 636 } 637 port->tty->termios->c_cflag &= ~CMSPAR; 638 tty_encode_baud_rate(port->tty, speed, speed); 639 640 result = usb_control_msg( port->serial->dev, 641 usb_rcvctrlpipe(port->serial->dev, 0 ), 642 SUSBCRequest_SetBaudRateParityAndStopBits, 643 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 644 urb_val, 645 0, 646 settings, 647 0, 648 KOBIL_TIMEOUT 649 ); 650 kfree(settings); 651} 652 653static int kobil_ioctl(struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg) 654{ 655 struct kobil_private * priv = usb_get_serial_port_data(port); 656 unsigned char *transfer_buffer; 657 int transfer_buffer_length = 8; 658 int result; 659 660 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) 661 // This device doesn't support ioctl calls 662 return 0; 663 664 switch (cmd) { 665 case TCFLSH: // 0x540B 666 transfer_buffer = kmalloc(transfer_buffer_length, GFP_KERNEL); 667 if (! transfer_buffer) 668 return -ENOBUFS; 669 670 result = usb_control_msg( port->serial->dev, 671 usb_rcvctrlpipe(port->serial->dev, 0 ), 672 SUSBCRequest_Misc, 673 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 674 SUSBCR_MSC_ResetAllQueues, 675 0, 676 NULL,//transfer_buffer, 677 0, 678 KOBIL_TIMEOUT 679 ); 680 681 dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __FUNCTION__, port->number, result); 682 kfree(transfer_buffer); 683 return (result < 0) ? -EFAULT : 0; 684 default: 685 return -ENOIOCTLCMD; 686 } 687} 688 689static int __init kobil_init (void) 690{ 691 int retval; 692 retval = usb_serial_register(&kobil_device); 693 if (retval) 694 goto failed_usb_serial_register; 695 retval = usb_register(&kobil_driver); 696 if (retval) 697 goto failed_usb_register; 698 699 info(DRIVER_VERSION " " DRIVER_AUTHOR); 700 info(DRIVER_DESC); 701 702 return 0; 703failed_usb_register: 704 usb_serial_deregister(&kobil_device); 705failed_usb_serial_register: 706 return retval; 707} 708 709 710static void __exit kobil_exit (void) 711{ 712 usb_deregister (&kobil_driver); 713 usb_serial_deregister (&kobil_device); 714} 715 716module_init(kobil_init); 717module_exit(kobil_exit); 718 719MODULE_AUTHOR( DRIVER_AUTHOR ); 720MODULE_DESCRIPTION( DRIVER_DESC ); 721MODULE_LICENSE( "GPL" ); 722 723module_param(debug, bool, S_IRUGO | S_IWUSR); 724MODULE_PARM_DESC(debug, "Debug enabled or not"); 725