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 .usb_driver = &kobil_driver, 114 .id_table = id_table, 115 .num_interrupt_in = NUM_DONT_CARE, 116 .num_bulk_in = 0, 117 .num_bulk_out = 0, 118 .num_ports = 1, 119 .attach = kobil_startup, 120 .shutdown = kobil_shutdown, 121 .ioctl = kobil_ioctl, 122 .tiocmget = kobil_tiocmget, 123 .tiocmset = kobil_tiocmset, 124 .open = kobil_open, 125 .close = kobil_close, 126 .write = kobil_write, 127 .write_room = kobil_write_room, 128 .read_int_callback = kobil_read_int_callback, 129}; 130 131 132struct kobil_private { 133 int write_int_endpoint_address; 134 int read_int_endpoint_address; 135 unsigned char buf[KOBIL_BUF_LENGTH]; // buffer for the APDU to send 136 int filled; // index of the last char in buf 137 int cur_pos; // index of the next char to send in buf 138 __u16 device_type; 139 int line_state; 140 struct ktermios internal_termios; 141}; 142 143 144static int kobil_startup (struct usb_serial *serial) 145{ 146 int i; 147 struct kobil_private *priv; 148 struct usb_device *pdev; 149 struct usb_host_config *actconfig; 150 struct usb_interface *interface; 151 struct usb_host_interface *altsetting; 152 struct usb_host_endpoint *endpoint; 153 154 priv = kmalloc(sizeof(struct kobil_private), GFP_KERNEL); 155 if (!priv){ 156 return -ENOMEM; 157 } 158 159 priv->filled = 0; 160 priv->cur_pos = 0; 161 priv->device_type = le16_to_cpu(serial->dev->descriptor.idProduct); 162 priv->line_state = 0; 163 164 switch (priv->device_type){ 165 case KOBIL_ADAPTER_B_PRODUCT_ID: 166 printk(KERN_DEBUG "KOBIL B1 PRO / KAAN PRO detected\n"); 167 break; 168 case KOBIL_ADAPTER_K_PRODUCT_ID: 169 printk(KERN_DEBUG "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n"); 170 break; 171 case KOBIL_USBTWIN_PRODUCT_ID: 172 printk(KERN_DEBUG "KOBIL USBTWIN detected\n"); 173 break; 174 case KOBIL_KAAN_SIM_PRODUCT_ID: 175 printk(KERN_DEBUG "KOBIL KAAN SIM detected\n"); 176 break; 177 } 178 usb_set_serial_port_data(serial->port[0], priv); 179 180 // search for the necessary endpoints 181 pdev = serial->dev; 182 actconfig = pdev->actconfig; 183 interface = actconfig->interface[0]; 184 altsetting = interface->cur_altsetting; 185 endpoint = altsetting->endpoint; 186 187 for (i = 0; i < altsetting->desc.bNumEndpoints; i++) { 188 endpoint = &altsetting->endpoint[i]; 189 if (usb_endpoint_is_int_out(&endpoint->desc)) { 190 dbg("%s Found interrupt out endpoint. Address: %d", __FUNCTION__, endpoint->desc.bEndpointAddress); 191 priv->write_int_endpoint_address = endpoint->desc.bEndpointAddress; 192 } 193 if (usb_endpoint_is_int_in(&endpoint->desc)) { 194 dbg("%s Found interrupt in endpoint. Address: %d", __FUNCTION__, endpoint->desc.bEndpointAddress); 195 priv->read_int_endpoint_address = endpoint->desc.bEndpointAddress; 196 } 197 } 198 return 0; 199} 200 201 202static void kobil_shutdown (struct usb_serial *serial) 203{ 204 int i; 205 dbg("%s - port %d", __FUNCTION__, serial->port[0]->number); 206 207 for (i=0; i < serial->num_ports; ++i) { 208 while (serial->port[i]->open_count > 0) { 209 kobil_close (serial->port[i], NULL); 210 } 211 kfree(usb_get_serial_port_data(serial->port[i])); 212 usb_set_serial_port_data(serial->port[i], NULL); 213 } 214} 215 216 217static int kobil_open (struct usb_serial_port *port, struct file *filp) 218{ 219 int i, result = 0; 220 struct kobil_private *priv; 221 unsigned char *transfer_buffer; 222 int transfer_buffer_length = 8; 223 int write_urb_transfer_buffer_length = 8; 224 225 dbg("%s - port %d", __FUNCTION__, port->number); 226 priv = usb_get_serial_port_data(port); 227 priv->line_state = 0; 228 229 // someone sets the dev to 0 if the close method has been called 230 port->interrupt_in_urb->dev = port->serial->dev; 231 232 233 /* force low_latency on so that our tty_push actually forces 234 * the data through, otherwise it is scheduled, and with high 235 * data rates (like with OHCI) data can get lost. 236 */ 237 port->tty->low_latency = 1; 238 239 // without this, every push_tty_char is echoed :-( 240 port->tty->termios->c_lflag = 0; 241 port->tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE); 242 port->tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF; 243 port->tty->termios->c_oflag &= ~ONLCR; // do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) 244 245 // set up internal termios structure 246 priv->internal_termios.c_iflag = port->tty->termios->c_iflag; 247 priv->internal_termios.c_oflag = port->tty->termios->c_oflag; 248 priv->internal_termios.c_cflag = port->tty->termios->c_cflag; 249 priv->internal_termios.c_lflag = port->tty->termios->c_lflag; 250 251 for (i=0; i<NCCS; i++) { 252 priv->internal_termios.c_cc[i] = port->tty->termios->c_cc[i]; 253 } 254 255 // allocate memory for transfer buffer 256 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 257 if (! transfer_buffer) { 258 return -ENOMEM; 259 } 260 261 // allocate write_urb 262 if (!port->write_urb) { 263 dbg("%s - port %d Allocating port->write_urb", __FUNCTION__, port->number); 264 port->write_urb = usb_alloc_urb(0, GFP_KERNEL); 265 if (!port->write_urb) { 266 dbg("%s - port %d usb_alloc_urb failed", __FUNCTION__, port->number); 267 kfree(transfer_buffer); 268 return -ENOMEM; 269 } 270 } 271 272 // allocate memory for write_urb transfer buffer 273 port->write_urb->transfer_buffer = kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL); 274 if (! port->write_urb->transfer_buffer) { 275 kfree(transfer_buffer); 276 usb_free_urb(port->write_urb); 277 port->write_urb = NULL; 278 return -ENOMEM; 279 } 280 281 // get hardware 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_GetHWVersion, 287 0, 288 transfer_buffer, 289 transfer_buffer_length, 290 KOBIL_TIMEOUT 291 ); 292 dbg("%s - port %d Send get_HW_version URB returns: %i", __FUNCTION__, port->number, result); 293 dbg("Harware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] ); 294 295 // get firmware version 296 result = usb_control_msg( port->serial->dev, 297 usb_rcvctrlpipe(port->serial->dev, 0 ), 298 SUSBCRequest_GetMisc, 299 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 300 SUSBCR_MSC_GetFWVersion, 301 0, 302 transfer_buffer, 303 transfer_buffer_length, 304 KOBIL_TIMEOUT 305 ); 306 dbg("%s - port %d Send get_FW_version URB returns: %i", __FUNCTION__, port->number, result); 307 dbg("Firmware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] ); 308 309 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) { 310 // Setting Baudrate, Parity and Stopbits 311 result = usb_control_msg( port->serial->dev, 312 usb_rcvctrlpipe(port->serial->dev, 0 ), 313 SUSBCRequest_SetBaudRateParityAndStopBits, 314 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 315 SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity | SUSBCR_SPASB_1StopBit, 316 0, 317 transfer_buffer, 318 0, 319 KOBIL_TIMEOUT 320 ); 321 dbg("%s - port %d Send set_baudrate URB returns: %i", __FUNCTION__, port->number, result); 322 323 // reset all queues 324 result = usb_control_msg( port->serial->dev, 325 usb_rcvctrlpipe(port->serial->dev, 0 ), 326 SUSBCRequest_Misc, 327 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 328 SUSBCR_MSC_ResetAllQueues, 329 0, 330 transfer_buffer, 331 0, 332 KOBIL_TIMEOUT 333 ); 334 dbg("%s - port %d Send reset_all_queues URB returns: %i", __FUNCTION__, port->number, result); 335 } 336 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 337 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 338 // start reading (Adapter B 'cause PNP string) 339 result = usb_submit_urb( port->interrupt_in_urb, GFP_ATOMIC ); 340 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); 341 } 342 343 kfree(transfer_buffer); 344 return 0; 345} 346 347 348static void kobil_close (struct usb_serial_port *port, struct file *filp) 349{ 350 dbg("%s - port %d", __FUNCTION__, port->number); 351 352 if (port->write_urb) { 353 usb_kill_urb(port->write_urb); 354 usb_free_urb( port->write_urb ); 355 port->write_urb = NULL; 356 } 357 usb_kill_urb(port->interrupt_in_urb); 358} 359 360 361static void kobil_read_int_callback( struct urb *purb) 362{ 363 int result; 364 struct usb_serial_port *port = (struct usb_serial_port *) purb->context; 365 struct tty_struct *tty; 366 unsigned char *data = purb->transfer_buffer; 367// char *dbg_data; 368 369 dbg("%s - port %d", __FUNCTION__, port->number); 370 371 if (purb->status) { 372 dbg("%s - port %d Read int status not zero: %d", __FUNCTION__, port->number, purb->status); 373 return; 374 } 375 376 tty = port->tty; 377 if (purb->actual_length) { 378 379 // BEGIN DEBUG 380 /* 381 dbg_data = kzalloc((3 * purb->actual_length + 10) * 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, purb->actual_length); 394 tty_insert_flip_string(tty, data, purb->actual_length); 395 tty_flip_buffer_push(tty); 396 } 397 398 // 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", __FUNCTION__, port->number, result); 403} 404 405 406static void kobil_write_callback( struct urb *purb ) 407{ 408} 409 410 411static int kobil_write (struct usb_serial_port *port, 412 const unsigned char *buf, int count) 413{ 414 int length = 0; 415 int result = 0; 416 int todo = 0; 417 struct kobil_private * priv; 418 419 if (count == 0) { 420 dbg("%s - port %d write request of 0 bytes", __FUNCTION__, 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", __FUNCTION__, port->number); 428 return -ENOMEM; 429 } 430 431 // Copy data to buffer 432 memcpy (priv->buf + priv->filled, buf, count); 433 434 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, priv->buf + priv->filled); 435 436 priv->filled = priv->filled + count; 437 438 439 // only send complete block. TWIN, KAAN SIM and adapter K use the same protocol. 440 if ( ((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) || 441 ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4))) ) { 442 443 // stop reading (except TWIN and KAAN SIM) 444 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) 445 usb_kill_urb(port->interrupt_in_urb); 446 447 todo = priv->filled - priv->cur_pos; 448 449 while(todo > 0) { 450 // max 8 byte in one urb (endpoint size) 451 length = (todo < 8) ? todo : 8; 452 // copy data to transfer buffer 453 memcpy(port->write_urb->transfer_buffer, priv->buf + priv->cur_pos, length ); 454 usb_fill_int_urb( port->write_urb, 455 port->serial->dev, 456 usb_sndintpipe(port->serial->dev, priv->write_int_endpoint_address), 457 port->write_urb->transfer_buffer, 458 length, 459 kobil_write_callback, 460 port, 461 8 462 ); 463 464 priv->cur_pos = priv->cur_pos + length; 465 result = usb_submit_urb( port->write_urb, GFP_NOIO ); 466 dbg("%s - port %d Send write URB returns: %i", __FUNCTION__, port->number, result); 467 todo = priv->filled - priv->cur_pos; 468 469 if (todo > 0) { 470 msleep(24); 471 } 472 473 } // end while 474 475 priv->filled = 0; 476 priv->cur_pos = 0; 477 478 // someone sets the dev to 0 if the close method has been called 479 port->interrupt_in_urb->dev = port->serial->dev; 480 481 // start reading (except TWIN and KAAN SIM) 482 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) { 483 // someone sets the dev to 0 if the close method has been called 484 port->interrupt_in_urb->dev = port->serial->dev; 485 486 result = usb_submit_urb( port->interrupt_in_urb, GFP_NOIO ); 487 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); 488 } 489 } 490 return count; 491} 492 493 494static int kobil_write_room (struct usb_serial_port *port) 495{ 496 //dbg("%s - port %d", __FUNCTION__, port->number); 497 return 8; 498} 499 500 501static int kobil_tiocmget(struct usb_serial_port *port, struct file *file) 502{ 503 struct kobil_private * priv; 504 int result; 505 unsigned char *transfer_buffer; 506 int transfer_buffer_length = 8; 507 508 priv = usb_get_serial_port_data(port); 509 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) { 510 // This device doesn't support ioctl calls 511 return -EINVAL; 512 } 513 514 // allocate memory for transfer buffer 515 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 516 if (!transfer_buffer) { 517 return -ENOMEM; 518 } 519 520 result = usb_control_msg( port->serial->dev, 521 usb_rcvctrlpipe(port->serial->dev, 0 ), 522 SUSBCRequest_GetStatusLineState, 523 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 524 0, 525 0, 526 transfer_buffer, 527 transfer_buffer_length, 528 KOBIL_TIMEOUT); 529 530 dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x", 531 __FUNCTION__, port->number, result, transfer_buffer[0]); 532 533 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) { 534 priv->line_state |= TIOCM_DSR; 535 } else { 536 priv->line_state &= ~TIOCM_DSR; 537 } 538 539 kfree(transfer_buffer); 540 return priv->line_state; 541} 542 543static int kobil_tiocmset(struct usb_serial_port *port, struct file *file, 544 unsigned int set, unsigned int clear) 545{ 546 struct kobil_private * priv; 547 int result; 548 int dtr = 0; 549 int rts = 0; 550 unsigned char *transfer_buffer; 551 int transfer_buffer_length = 8; 552 553 priv = usb_get_serial_port_data(port); 554 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) { 555 // This device doesn't support ioctl calls 556 return -EINVAL; 557 } 558 559 // allocate memory for transfer buffer 560 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 561 if (! transfer_buffer) { 562 return -ENOMEM; 563 } 564 565 if (set & TIOCM_RTS) 566 rts = 1; 567 if (set & TIOCM_DTR) 568 dtr = 1; 569 if (clear & TIOCM_RTS) 570 rts = 0; 571 if (clear & TIOCM_DTR) 572 dtr = 0; 573 574 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) { 575 if (dtr != 0) 576 dbg("%s - port %d Setting DTR", __FUNCTION__, port->number); 577 else 578 dbg("%s - port %d Clearing DTR", __FUNCTION__, port->number); 579 result = usb_control_msg( port->serial->dev, 580 usb_rcvctrlpipe(port->serial->dev, 0 ), 581 SUSBCRequest_SetStatusLinesOrQueues, 582 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 583 ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR), 584 0, 585 transfer_buffer, 586 0, 587 KOBIL_TIMEOUT); 588 } else { 589 if (rts != 0) 590 dbg("%s - port %d Setting RTS", __FUNCTION__, port->number); 591 else 592 dbg("%s - port %d Clearing RTS", __FUNCTION__, port->number); 593 result = usb_control_msg( port->serial->dev, 594 usb_rcvctrlpipe(port->serial->dev, 0 ), 595 SUSBCRequest_SetStatusLinesOrQueues, 596 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 597 ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS), 598 0, 599 transfer_buffer, 600 0, 601 KOBIL_TIMEOUT); 602 } 603 dbg("%s - port %d Send set_status_line URB returns: %i", __FUNCTION__, port->number, result); 604 kfree(transfer_buffer); 605 return (result < 0) ? result : 0; 606} 607 608 609static int kobil_ioctl(struct usb_serial_port *port, struct file *file, 610 unsigned int cmd, unsigned long arg) 611{ 612 struct kobil_private * priv; 613 int result; 614 unsigned short urb_val = 0; 615 unsigned char *transfer_buffer; 616 int transfer_buffer_length = 8; 617 char *settings; 618 void __user *user_arg = (void __user *)arg; 619 620 priv = usb_get_serial_port_data(port); 621 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) { 622 // This device doesn't support ioctl calls 623 return 0; 624 } 625 626 switch (cmd) { 627 case TCGETS: // 0x5401 628 if (!access_ok(VERIFY_WRITE, user_arg, sizeof(struct ktermios))) { 629 dbg("%s - port %d Error in access_ok", __FUNCTION__, port->number); 630 return -EFAULT; 631 } 632 if (kernel_termios_to_user_termios((struct ktermios __user *)arg, 633 &priv->internal_termios)) 634 return -EFAULT; 635 return 0; 636 637 case TCSETS: // 0x5402 638 if (!(port->tty->termios)) { 639 dbg("%s - port %d Error: port->tty->termios is NULL", __FUNCTION__, port->number); 640 return -ENOTTY; 641 } 642 if (!access_ok(VERIFY_READ, user_arg, sizeof(struct ktermios))) { 643 dbg("%s - port %d Error in access_ok", __FUNCTION__, port->number); 644 return -EFAULT; 645 } 646 if (user_termios_to_kernel_termios(&priv->internal_termios, 647 (struct ktermios __user *)arg)) 648 return -EFAULT; 649 650 settings = kzalloc(50, GFP_KERNEL); 651 if (! settings) { 652 return -ENOBUFS; 653 } 654 655 switch (priv->internal_termios.c_cflag & CBAUD) { 656 case B1200: 657 urb_val = SUSBCR_SBR_1200; 658 strcat(settings, "1200 "); 659 break; 660 case B9600: 661 default: 662 urb_val = SUSBCR_SBR_9600; 663 strcat(settings, "9600 "); 664 break; 665 } 666 667 urb_val |= (priv->internal_termios.c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits : SUSBCR_SPASB_1StopBit; 668 strcat(settings, (priv->internal_termios.c_cflag & CSTOPB) ? "2 StopBits " : "1 StopBit "); 669 670 if (priv->internal_termios.c_cflag & PARENB) { 671 if (priv->internal_termios.c_cflag & PARODD) { 672 urb_val |= SUSBCR_SPASB_OddParity; 673 strcat(settings, "Odd Parity"); 674 } else { 675 urb_val |= SUSBCR_SPASB_EvenParity; 676 strcat(settings, "Even Parity"); 677 } 678 } else { 679 urb_val |= SUSBCR_SPASB_NoParity; 680 strcat(settings, "No Parity"); 681 } 682 dbg("%s - port %d setting port to: %s", __FUNCTION__, port->number, settings ); 683 684 result = usb_control_msg( port->serial->dev, 685 usb_rcvctrlpipe(port->serial->dev, 0 ), 686 SUSBCRequest_SetBaudRateParityAndStopBits, 687 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 688 urb_val, 689 0, 690 settings, 691 0, 692 KOBIL_TIMEOUT 693 ); 694 695 dbg("%s - port %d Send set_baudrate URB returns: %i", __FUNCTION__, port->number, result); 696 kfree(settings); 697 return 0; 698 699 case TCFLSH: // 0x540B 700 transfer_buffer = kmalloc(transfer_buffer_length, GFP_KERNEL); 701 if (! transfer_buffer) { 702 return -ENOBUFS; 703 } 704 705 result = usb_control_msg( port->serial->dev, 706 usb_rcvctrlpipe(port->serial->dev, 0 ), 707 SUSBCRequest_Misc, 708 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 709 SUSBCR_MSC_ResetAllQueues, 710 0, 711 NULL,//transfer_buffer, 712 0, 713 KOBIL_TIMEOUT 714 ); 715 716 dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __FUNCTION__, port->number, result); 717 718 kfree(transfer_buffer); 719 return ((result < 0) ? -EFAULT : 0); 720 721 } 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 info(DRIVER_VERSION " " DRIVER_AUTHOR); 737 info(DRIVER_DESC); 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