kobil_sct.c revision 606d099cdd1080bbb50ea50dc52d98252f8f10a1
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 ); 85 86 87static struct usb_device_id id_table [] = { 88 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) }, 89 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_K_PRODUCT_ID) }, 90 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_USBTWIN_PRODUCT_ID) }, 91 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_KAAN_SIM_PRODUCT_ID) }, 92 { } /* Terminating entry */ 93}; 94 95 96MODULE_DEVICE_TABLE (usb, id_table); 97 98static struct usb_driver kobil_driver = { 99 .name = "kobil", 100 .probe = usb_serial_probe, 101 .disconnect = usb_serial_disconnect, 102 .id_table = id_table, 103 .no_dynamic_id = 1, 104}; 105 106 107static struct usb_serial_driver kobil_device = { 108 .driver = { 109 .owner = THIS_MODULE, 110 .name = "kobil", 111 }, 112 .description = "KOBIL USB smart card terminal", 113 .id_table = id_table, 114 .num_interrupt_in = NUM_DONT_CARE, 115 .num_bulk_in = 0, 116 .num_bulk_out = 0, 117 .num_ports = 1, 118 .attach = kobil_startup, 119 .shutdown = kobil_shutdown, 120 .ioctl = kobil_ioctl, 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 int line_state; 139 struct ktermios internal_termios; 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 } 157 158 priv->filled = 0; 159 priv->cur_pos = 0; 160 priv->device_type = le16_to_cpu(serial->dev->descriptor.idProduct); 161 priv->line_state = 0; 162 163 switch (priv->device_type){ 164 case KOBIL_ADAPTER_B_PRODUCT_ID: 165 printk(KERN_DEBUG "KOBIL B1 PRO / KAAN PRO detected\n"); 166 break; 167 case KOBIL_ADAPTER_K_PRODUCT_ID: 168 printk(KERN_DEBUG "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n"); 169 break; 170 case KOBIL_USBTWIN_PRODUCT_ID: 171 printk(KERN_DEBUG "KOBIL USBTWIN detected\n"); 172 break; 173 case KOBIL_KAAN_SIM_PRODUCT_ID: 174 printk(KERN_DEBUG "KOBIL KAAN SIM detected\n"); 175 break; 176 } 177 usb_set_serial_port_data(serial->port[0], priv); 178 179 // search for the necessary endpoints 180 pdev = serial->dev; 181 actconfig = pdev->actconfig; 182 interface = actconfig->interface[0]; 183 altsetting = interface->cur_altsetting; 184 endpoint = altsetting->endpoint; 185 186 for (i = 0; i < altsetting->desc.bNumEndpoints; i++) { 187 endpoint = &altsetting->endpoint[i]; 188 if (usb_endpoint_is_int_out(&endpoint->desc)) { 189 dbg("%s Found interrupt out endpoint. Address: %d", __FUNCTION__, endpoint->desc.bEndpointAddress); 190 priv->write_int_endpoint_address = endpoint->desc.bEndpointAddress; 191 } 192 if (usb_endpoint_is_int_in(&endpoint->desc)) { 193 dbg("%s Found interrupt in endpoint. Address: %d", __FUNCTION__, endpoint->desc.bEndpointAddress); 194 priv->read_int_endpoint_address = endpoint->desc.bEndpointAddress; 195 } 196 } 197 return 0; 198} 199 200 201static void kobil_shutdown (struct usb_serial *serial) 202{ 203 int i; 204 dbg("%s - port %d", __FUNCTION__, serial->port[0]->number); 205 206 for (i=0; i < serial->num_ports; ++i) { 207 while (serial->port[i]->open_count > 0) { 208 kobil_close (serial->port[i], NULL); 209 } 210 kfree(usb_get_serial_port_data(serial->port[i])); 211 usb_set_serial_port_data(serial->port[i], NULL); 212 } 213} 214 215 216static int kobil_open (struct usb_serial_port *port, struct file *filp) 217{ 218 int i, result = 0; 219 struct kobil_private *priv; 220 unsigned char *transfer_buffer; 221 int transfer_buffer_length = 8; 222 int write_urb_transfer_buffer_length = 8; 223 224 dbg("%s - port %d", __FUNCTION__, port->number); 225 priv = usb_get_serial_port_data(port); 226 priv->line_state = 0; 227 228 // someone sets the dev to 0 if the close method has been called 229 port->interrupt_in_urb->dev = port->serial->dev; 230 231 232 /* force low_latency on so that our tty_push actually forces 233 * the data through, otherwise it is scheduled, and with high 234 * data rates (like with OHCI) data can get lost. 235 */ 236 port->tty->low_latency = 1; 237 238 // without this, every push_tty_char is echoed :-( 239 port->tty->termios->c_lflag = 0; 240 port->tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE); 241 port->tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF; 242 port->tty->termios->c_oflag &= ~ONLCR; // do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) 243 244 // set up internal termios structure 245 priv->internal_termios.c_iflag = port->tty->termios->c_iflag; 246 priv->internal_termios.c_oflag = port->tty->termios->c_oflag; 247 priv->internal_termios.c_cflag = port->tty->termios->c_cflag; 248 priv->internal_termios.c_lflag = port->tty->termios->c_lflag; 249 250 for (i=0; i<NCCS; i++) { 251 priv->internal_termios.c_cc[i] = port->tty->termios->c_cc[i]; 252 } 253 254 // allocate memory for transfer buffer 255 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 256 if (! transfer_buffer) { 257 return -ENOMEM; 258 } 259 260 // allocate write_urb 261 if (!port->write_urb) { 262 dbg("%s - port %d Allocating port->write_urb", __FUNCTION__, port->number); 263 port->write_urb = usb_alloc_urb(0, GFP_KERNEL); 264 if (!port->write_urb) { 265 dbg("%s - port %d usb_alloc_urb failed", __FUNCTION__, port->number); 266 kfree(transfer_buffer); 267 return -ENOMEM; 268 } 269 } 270 271 // allocate memory for write_urb transfer buffer 272 port->write_urb->transfer_buffer = (unsigned char *) kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL); 273 if (! port->write_urb->transfer_buffer) { 274 kfree(transfer_buffer); 275 usb_free_urb(port->write_urb); 276 port->write_urb = NULL; 277 return -ENOMEM; 278 } 279 280 // get hardware 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_GetHWVersion, 286 0, 287 transfer_buffer, 288 transfer_buffer_length, 289 KOBIL_TIMEOUT 290 ); 291 dbg("%s - port %d Send get_HW_version URB returns: %i", __FUNCTION__, port->number, result); 292 dbg("Harware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] ); 293 294 // get firmware version 295 result = usb_control_msg( port->serial->dev, 296 usb_rcvctrlpipe(port->serial->dev, 0 ), 297 SUSBCRequest_GetMisc, 298 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 299 SUSBCR_MSC_GetFWVersion, 300 0, 301 transfer_buffer, 302 transfer_buffer_length, 303 KOBIL_TIMEOUT 304 ); 305 dbg("%s - port %d Send get_FW_version URB returns: %i", __FUNCTION__, port->number, result); 306 dbg("Firmware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] ); 307 308 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) { 309 // Setting Baudrate, Parity and Stopbits 310 result = usb_control_msg( port->serial->dev, 311 usb_rcvctrlpipe(port->serial->dev, 0 ), 312 SUSBCRequest_SetBaudRateParityAndStopBits, 313 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 314 SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity | SUSBCR_SPASB_1StopBit, 315 0, 316 transfer_buffer, 317 0, 318 KOBIL_TIMEOUT 319 ); 320 dbg("%s - port %d Send set_baudrate URB returns: %i", __FUNCTION__, port->number, result); 321 322 // reset all queues 323 result = usb_control_msg( port->serial->dev, 324 usb_rcvctrlpipe(port->serial->dev, 0 ), 325 SUSBCRequest_Misc, 326 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 327 SUSBCR_MSC_ResetAllQueues, 328 0, 329 transfer_buffer, 330 0, 331 KOBIL_TIMEOUT 332 ); 333 dbg("%s - port %d Send reset_all_queues URB returns: %i", __FUNCTION__, port->number, result); 334 } 335 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 336 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 337 // start reading (Adapter B 'cause PNP string) 338 result = usb_submit_urb( port->interrupt_in_urb, GFP_ATOMIC ); 339 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); 340 } 341 342 kfree(transfer_buffer); 343 return 0; 344} 345 346 347static void kobil_close (struct usb_serial_port *port, struct file *filp) 348{ 349 dbg("%s - port %d", __FUNCTION__, port->number); 350 351 if (port->write_urb) { 352 usb_kill_urb(port->write_urb); 353 usb_free_urb( port->write_urb ); 354 port->write_urb = NULL; 355 } 356 usb_kill_urb(port->interrupt_in_urb); 357} 358 359 360static void kobil_read_int_callback( struct urb *purb) 361{ 362 int result; 363 struct usb_serial_port *port = (struct usb_serial_port *) purb->context; 364 struct tty_struct *tty; 365 unsigned char *data = purb->transfer_buffer; 366// char *dbg_data; 367 368 dbg("%s - port %d", __FUNCTION__, port->number); 369 370 if (purb->status) { 371 dbg("%s - port %d Read int status not zero: %d", __FUNCTION__, port->number, purb->status); 372 return; 373 } 374 375 tty = port->tty; 376 if (purb->actual_length) { 377 378 // BEGIN DEBUG 379 /* 380 dbg_data = kzalloc((3 * purb->actual_length + 10) * 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_buffer_request_room(tty, purb->actual_length); 393 tty_insert_flip_string(tty, data, purb->actual_length); 394 tty_flip_buffer_push(tty); 395 } 396 397 // someone sets the dev to 0 if the close method has been called 398 port->interrupt_in_urb->dev = port->serial->dev; 399 400 result = usb_submit_urb( port->interrupt_in_urb, GFP_ATOMIC ); 401 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); 402} 403 404 405static void kobil_write_callback( struct urb *purb ) 406{ 407} 408 409 410static int kobil_write (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", __FUNCTION__, port->number); 420 return 0; 421 } 422 423 priv = usb_get_serial_port_data(port); 424 425 if (count > (KOBIL_BUF_LENGTH - priv->filled)) { 426 dbg("%s - port %d Error: write request bigger than buffer size", __FUNCTION__, port->number); 427 return -ENOMEM; 428 } 429 430 // Copy data to buffer 431 memcpy (priv->buf + priv->filled, buf, count); 432 433 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, priv->buf + priv->filled); 434 435 priv->filled = priv->filled + count; 436 437 438 // only send complete block. TWIN, KAAN SIM and adapter K 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))) ) { 441 442 // stop reading (except TWIN and KAAN SIM) 443 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (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, priv->buf + priv->cur_pos, length ); 453 usb_fill_int_urb( port->write_urb, 454 port->serial->dev, 455 usb_sndintpipe(port->serial->dev, priv->write_int_endpoint_address), 456 port->write_urb->transfer_buffer, 457 length, 458 kobil_write_callback, 459 port, 460 8 461 ); 462 463 priv->cur_pos = priv->cur_pos + length; 464 result = usb_submit_urb( port->write_urb, GFP_NOIO ); 465 dbg("%s - port %d Send write URB returns: %i", __FUNCTION__, port->number, result); 466 todo = priv->filled - priv->cur_pos; 467 468 if (todo > 0) { 469 msleep(24); 470 } 471 472 } // end while 473 474 priv->filled = 0; 475 priv->cur_pos = 0; 476 477 // someone sets the dev to 0 if the close method has been called 478 port->interrupt_in_urb->dev = port->serial->dev; 479 480 // start reading (except TWIN and KAAN SIM) 481 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) { 482 // someone sets the dev to 0 if the close method has been called 483 port->interrupt_in_urb->dev = port->serial->dev; 484 485 result = usb_submit_urb( port->interrupt_in_urb, GFP_NOIO ); 486 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); 487 } 488 } 489 return count; 490} 491 492 493static int kobil_write_room (struct usb_serial_port *port) 494{ 495 //dbg("%s - port %d", __FUNCTION__, port->number); 496 return 8; 497} 498 499 500static int kobil_tiocmget(struct usb_serial_port *port, struct file *file) 501{ 502 struct kobil_private * priv; 503 int result; 504 unsigned char *transfer_buffer; 505 int transfer_buffer_length = 8; 506 507 priv = usb_get_serial_port_data(port); 508 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) { 509 // This device doesn't support ioctl calls 510 return -EINVAL; 511 } 512 513 // allocate memory for transfer buffer 514 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 515 if (!transfer_buffer) { 516 return -ENOMEM; 517 } 518 519 result = usb_control_msg( port->serial->dev, 520 usb_rcvctrlpipe(port->serial->dev, 0 ), 521 SUSBCRequest_GetStatusLineState, 522 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 523 0, 524 0, 525 transfer_buffer, 526 transfer_buffer_length, 527 KOBIL_TIMEOUT); 528 529 dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x", 530 __FUNCTION__, port->number, result, transfer_buffer[0]); 531 532 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) { 533 priv->line_state |= TIOCM_DSR; 534 } else { 535 priv->line_state &= ~TIOCM_DSR; 536 } 537 538 kfree(transfer_buffer); 539 return priv->line_state; 540} 541 542static int kobil_tiocmset(struct usb_serial_port *port, struct file *file, 543 unsigned int set, unsigned int clear) 544{ 545 struct kobil_private * priv; 546 int result; 547 int dtr = 0; 548 int rts = 0; 549 unsigned char *transfer_buffer; 550 int transfer_buffer_length = 8; 551 552 priv = usb_get_serial_port_data(port); 553 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) { 554 // This device doesn't support ioctl calls 555 return -EINVAL; 556 } 557 558 // allocate memory for transfer buffer 559 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 560 if (! transfer_buffer) { 561 return -ENOMEM; 562 } 563 564 if (set & TIOCM_RTS) 565 rts = 1; 566 if (set & TIOCM_DTR) 567 dtr = 1; 568 if (clear & TIOCM_RTS) 569 rts = 0; 570 if (clear & TIOCM_DTR) 571 dtr = 0; 572 573 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) { 574 if (dtr != 0) 575 dbg("%s - port %d Setting DTR", __FUNCTION__, port->number); 576 else 577 dbg("%s - port %d Clearing DTR", __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 ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR), 583 0, 584 transfer_buffer, 585 0, 586 KOBIL_TIMEOUT); 587 } else { 588 if (rts != 0) 589 dbg("%s - port %d Setting RTS", __FUNCTION__, port->number); 590 else 591 dbg("%s - port %d Clearing RTS", __FUNCTION__, port->number); 592 result = usb_control_msg( port->serial->dev, 593 usb_rcvctrlpipe(port->serial->dev, 0 ), 594 SUSBCRequest_SetStatusLinesOrQueues, 595 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 596 ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS), 597 0, 598 transfer_buffer, 599 0, 600 KOBIL_TIMEOUT); 601 } 602 dbg("%s - port %d Send set_status_line URB returns: %i", __FUNCTION__, port->number, result); 603 kfree(transfer_buffer); 604 return (result < 0) ? result : 0; 605} 606 607 608static int kobil_ioctl(struct usb_serial_port *port, struct file *file, 609 unsigned int cmd, unsigned long arg) 610{ 611 struct kobil_private * priv; 612 int result; 613 unsigned short urb_val = 0; 614 unsigned char *transfer_buffer; 615 int transfer_buffer_length = 8; 616 char *settings; 617 void __user *user_arg = (void __user *)arg; 618 619 priv = usb_get_serial_port_data(port); 620 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) { 621 // This device doesn't support ioctl calls 622 return 0; 623 } 624 625 switch (cmd) { 626 case TCGETS: // 0x5401 627 if (!access_ok(VERIFY_WRITE, user_arg, sizeof(struct ktermios))) { 628 dbg("%s - port %d Error in access_ok", __FUNCTION__, port->number); 629 return -EFAULT; 630 } 631 if (kernel_termios_to_user_termios((struct ktermios __user *)arg, 632 &priv->internal_termios)) 633 return -EFAULT; 634 return 0; 635 636 case TCSETS: // 0x5402 637 if (!(port->tty->termios)) { 638 dbg("%s - port %d Error: port->tty->termios is NULL", __FUNCTION__, port->number); 639 return -ENOTTY; 640 } 641 if (!access_ok(VERIFY_READ, user_arg, sizeof(struct ktermios))) { 642 dbg("%s - port %d Error in access_ok", __FUNCTION__, port->number); 643 return -EFAULT; 644 } 645 if (user_termios_to_kernel_termios(&priv->internal_termios, 646 (struct ktermios __user *)arg)) 647 return -EFAULT; 648 649 settings = kzalloc(50, GFP_KERNEL); 650 if (! settings) { 651 return -ENOBUFS; 652 } 653 654 switch (priv->internal_termios.c_cflag & CBAUD) { 655 case B1200: 656 urb_val = SUSBCR_SBR_1200; 657 strcat(settings, "1200 "); 658 break; 659 case B9600: 660 default: 661 urb_val = SUSBCR_SBR_9600; 662 strcat(settings, "9600 "); 663 break; 664 } 665 666 urb_val |= (priv->internal_termios.c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits : SUSBCR_SPASB_1StopBit; 667 strcat(settings, (priv->internal_termios.c_cflag & CSTOPB) ? "2 StopBits " : "1 StopBit "); 668 669 if (priv->internal_termios.c_cflag & PARENB) { 670 if (priv->internal_termios.c_cflag & PARODD) { 671 urb_val |= SUSBCR_SPASB_OddParity; 672 strcat(settings, "Odd Parity"); 673 } else { 674 urb_val |= SUSBCR_SPASB_EvenParity; 675 strcat(settings, "Even Parity"); 676 } 677 } else { 678 urb_val |= SUSBCR_SPASB_NoParity; 679 strcat(settings, "No Parity"); 680 } 681 dbg("%s - port %d setting port to: %s", __FUNCTION__, port->number, settings ); 682 683 result = usb_control_msg( port->serial->dev, 684 usb_rcvctrlpipe(port->serial->dev, 0 ), 685 SUSBCRequest_SetBaudRateParityAndStopBits, 686 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 687 urb_val, 688 0, 689 settings, 690 0, 691 KOBIL_TIMEOUT 692 ); 693 694 dbg("%s - port %d Send set_baudrate URB returns: %i", __FUNCTION__, port->number, result); 695 kfree(settings); 696 return 0; 697 698 case TCFLSH: // 0x540B 699 transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL); 700 if (! transfer_buffer) { 701 return -ENOBUFS; 702 } 703 704 result = usb_control_msg( port->serial->dev, 705 usb_rcvctrlpipe(port->serial->dev, 0 ), 706 SUSBCRequest_Misc, 707 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 708 SUSBCR_MSC_ResetAllQueues, 709 0, 710 NULL,//transfer_buffer, 711 0, 712 KOBIL_TIMEOUT 713 ); 714 715 dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __FUNCTION__, port->number, result); 716 717 kfree(transfer_buffer); 718 return ((result < 0) ? -EFAULT : 0); 719 720 } 721 return -ENOIOCTLCMD; 722} 723 724 725static int __init kobil_init (void) 726{ 727 int retval; 728 retval = usb_serial_register(&kobil_device); 729 if (retval) 730 goto failed_usb_serial_register; 731 retval = usb_register(&kobil_driver); 732 if (retval) 733 goto failed_usb_register; 734 735 info(DRIVER_VERSION " " DRIVER_AUTHOR); 736 info(DRIVER_DESC); 737 738 return 0; 739failed_usb_register: 740 usb_serial_deregister(&kobil_device); 741failed_usb_serial_register: 742 return retval; 743} 744 745 746static void __exit kobil_exit (void) 747{ 748 usb_deregister (&kobil_driver); 749 usb_serial_deregister (&kobil_device); 750} 751 752module_init(kobil_init); 753module_exit(kobil_exit); 754 755MODULE_AUTHOR( DRIVER_AUTHOR ); 756MODULE_DESCRIPTION( DRIVER_DESC ); 757MODULE_LICENSE( "GPL" ); 758 759module_param(debug, bool, S_IRUGO | S_IWUSR); 760MODULE_PARM_DESC(debug, "Debug enabled or not"); 761