SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/usb/serial/kobil_sct.c

   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
  53 static 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 */
  71 static int  kobil_startup(struct usb_serial *serial);
  72 static void kobil_release(struct usb_serial *serial);
  73 static int  kobil_open(struct tty_struct *tty, struct usb_serial_port *port);
  74 static void kobil_close(struct usb_serial_port *port);
  75 static int  kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
  76                          const unsigned char *buf, int count);
  77 static int  kobil_write_room(struct tty_struct *tty);
  78 static int  kobil_ioctl(struct tty_struct *tty, struct file *file,
  79                         unsigned int cmd, unsigned long arg);
  80 static int  kobil_tiocmget(struct tty_struct *tty, struct file *file);
  81 static int  kobil_tiocmset(struct tty_struct *tty, struct file *file,
  82                            unsigned int set, unsigned int clear);
  83 static void kobil_read_int_callback(struct urb *urb);
  84 static void kobil_write_callback(struct urb *purb);
  85 static void kobil_set_termios(struct tty_struct *tty,
  86                         struct usb_serial_port *port, struct ktermios *old);
  87 static void kobil_init_termios(struct tty_struct *tty);
  88
  89 static const struct usb_device_id id_table[] = {
  90         { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) },
  91         { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_K_PRODUCT_ID) },
  92         { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_USBTWIN_PRODUCT_ID) },
  93         { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_KAAN_SIM_PRODUCT_ID) },
  94         { }                     /* Terminating entry */
  95 };
  96
  97
  98 MODULE_DEVICE_TABLE(usb, id_table);
  99
 100 static struct usb_driver kobil_driver = {
 101         .name =         "kobil",
 102         .probe =        usb_serial_probe,
 103         .disconnect =   usb_serial_disconnect,
 104         .id_table =     id_table,
 105         .no_dynamic_id =        1,
 106 };
 107
 108
 109 static struct usb_serial_driver kobil_device = {
 110         .driver = {
 111                 .owner =        THIS_MODULE,
 112                 .name =         "kobil",
 113         },
 114         .description =          "KOBIL USB smart card terminal",
 115         .usb_driver =           &kobil_driver,
 116         .id_table =             id_table,
 117         .num_ports =            1,
 118         .attach =               kobil_startup,
 119         .release =              kobil_release,
 120         .ioctl =                kobil_ioctl,
 121         .set_termios =          kobil_set_termios,
 122         .init_termios =         kobil_init_termios,
 123         .tiocmget =             kobil_tiocmget,
 124         .tiocmset =             kobil_tiocmset,
 125         .open =                 kobil_open,
 126         .close =                kobil_close,
 127         .write =                kobil_write,
 128         .write_room =           kobil_write_room,
 129         .read_int_callback =    kobil_read_int_callback,
 130 };
 131
 132
 133 struct 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
 143 static 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
 204 static 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 static void kobil_init_termios(struct tty_struct *tty)
 214 {
 215         /* Default to echo off and other sane device settings */
 216         tty->termios->c_lflag = 0;
 217         tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE);
 218         tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF;
 219         /* do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) */
 220         tty->termios->c_oflag &= ~ONLCR;
 221 }
 222
 223 static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port)
 224 {
 225         int result = 0;
 226         struct kobil_private *priv;
 227         unsigned char *transfer_buffer;
 228         int transfer_buffer_length = 8;
 229         int write_urb_transfer_buffer_length = 8;
 230
 231         dbg("%s - port %d", __func__, port->number);
 232         priv = usb_get_serial_port_data(port);
 233
 234         /* someone sets the dev to 0 if the close method has been called */
 235         port->interrupt_in_urb->dev = port->serial->dev;
 236
 237         /* allocate memory for transfer buffer */
 238         transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
 239         if (!transfer_buffer)
 240                 return -ENOMEM;
 241
 242         /* allocate write_urb */
 243         if (!port->write_urb) {
 244                 dbg("%s - port %d  Allocating port->write_urb",
 245                                                 __func__, port->number);
 246                 port->write_urb = usb_alloc_urb(0, GFP_KERNEL);
 247                 if (!port->write_urb) {
 248                         dbg("%s - port %d usb_alloc_urb failed",
 249                                                 __func__, port->number);
 250                         kfree(transfer_buffer);
 251                         return -ENOMEM;
 252                 }
 253         }
 254
 255         /* allocate memory for write_urb transfer buffer */
 256         port->write_urb->transfer_buffer =
 257                         kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL);
 258         if (!port->write_urb->transfer_buffer) {
 259                 kfree(transfer_buffer);
 260                 usb_free_urb(port->write_urb);
 261                 port->write_urb = NULL;
 262                 return -ENOMEM;
 263         }
 264
 265         /* get hardware version */
 266         result = usb_control_msg(port->serial->dev,
 267                           usb_rcvctrlpipe(port->serial->dev, 0),
 268                           SUSBCRequest_GetMisc,
 269                           USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
 270                           SUSBCR_MSC_GetHWVersion,
 271                           0,
 272                           transfer_buffer,
 273                           transfer_buffer_length,
 274                           KOBIL_TIMEOUT
 275         );
 276         dbg("%s - port %d Send get_HW_version URB returns: %i",
 277                 __func__, port->number, result);
 278         dbg("Harware version: %i.%i.%i",
 279                 transfer_buffer[0], transfer_buffer[1], transfer_buffer[2]);
 280
 281         /* get firmware version */
 282         result = usb_control_msg(port->serial->dev,
 283                           usb_rcvctrlpipe(port->serial->dev, 0),
 284                           SUSBCRequest_GetMisc,
 285                           USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
 286                           SUSBCR_MSC_GetFWVersion,
 287                           0,
 288                           transfer_buffer,
 289                           transfer_buffer_length,
 290                           KOBIL_TIMEOUT
 291         );
 292         dbg("%s - port %d Send get_FW_version URB returns: %i",
 293                                         __func__, port->number, result);
 294         dbg("Firmware version: %i.%i.%i",
 295                 transfer_buffer[0], transfer_buffer[1], transfer_buffer[2]);
 296
 297         if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
 298                         priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
 299                 /* Setting Baudrate, Parity and Stopbits */
 300                 result = usb_control_msg(port->serial->dev,
 301                           usb_rcvctrlpipe(port->serial->dev, 0),
 302                           SUSBCRequest_SetBaudRateParityAndStopBits,
 303                           USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
 304                           SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity |
 305                                                         SUSBCR_SPASB_1StopBit,
 306                           0,
 307                           transfer_buffer,
 308                           0,
 309                           KOBIL_TIMEOUT
 310                 );
 311                 dbg("%s - port %d Send set_baudrate URB returns: %i",
 312                                         __func__, port->number, result);
 313
 314                 /* reset all queues */
 315                 result = usb_control_msg(port->serial->dev,
 316                           usb_rcvctrlpipe(port->serial->dev, 0),
 317                           SUSBCRequest_Misc,
 318                           USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
 319                           SUSBCR_MSC_ResetAllQueues,
 320                           0,
 321                           transfer_buffer,
 322                           0,
 323                           KOBIL_TIMEOUT
 324                 );
 325                 dbg("%s - port %d Send reset_all_queues URB returns: %i",
 326                                         __func__, port->number, result);
 327         }
 328         if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
 329             priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
 330             priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
 331                 /* start reading (Adapter B 'cause PNP string) */
 332                 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
 333                 dbg("%s - port %d Send read URB returns: %i",
 334                                         __func__, port->number, result);
 335         }
 336
 337         kfree(transfer_buffer);
 338         return 0;
 339 }
 340
 341
 342 static void kobil_close(struct usb_serial_port *port)
 343 {
 344         dbg("%s - port %d", __func__, port->number);
 345
 346         /* FIXME: Add rts/dtr methods */
 347         if (port->write_urb) {
 348                 usb_kill_urb(port->write_urb);
 349                 usb_free_urb(port->write_urb);
 350                 port->write_urb = NULL;
 351         }
 352         usb_kill_urb(port->interrupt_in_urb);
 353 }
 354
 355
 356 static void kobil_read_int_callback(struct urb *urb)
 357 {
 358         int result;
 359         struct usb_serial_port *port = urb->context;
 360         struct tty_struct *tty;
 361         unsigned char *data = urb->transfer_buffer;
 362         int status = urb->status;
 363 /*      char *dbg_data; */
 364
 365         dbg("%s - port %d", __func__, port->number);
 366
 367         if (status) {
 368                 dbg("%s - port %d Read int status not zero: %d",
 369                     __func__, port->number, status);
 370                 return;
 371         }
 372
 373         tty = tty_port_tty_get(&port->port);
 374         if (urb->actual_length) {
 375
 376                 /* BEGIN DEBUG */
 377                 /*
 378                   dbg_data = kzalloc((3 *  purb->actual_length + 10)
 379                                                 * sizeof(char), GFP_KERNEL);
 380                   if (! dbg_data) {
 381                           return;
 382                   }
 383                   for (i = 0; i < purb->actual_length; i++) {
 384                           sprintf(dbg_data +3*i, "%02X ", data[i]);
 385                   }
 386                   dbg(" <-- %s", dbg_data);
 387                   kfree(dbg_data);
 388                 */
 389                 /* END DEBUG */
 390
 391                 tty_insert_flip_string(tty, data, urb->actual_length);
 392                 tty_flip_buffer_push(tty);
 393         }
 394         tty_kref_put(tty);
 395         /* someone sets the dev to 0 if the close method has been called */
 396         port->interrupt_in_urb->dev = port->serial->dev;
 397
 398         result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
 399         dbg("%s - port %d Send read URB returns: %i",
 400                         __func__, port->number, result);
 401 }
 402
 403
 404 static void kobil_write_callback(struct urb *purb)
 405 {
 406 }
 407
 408
 409 static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
 410                         const unsigned char *buf, int count)
 411 {
 412         int length = 0;
 413         int result = 0;
 414         int todo = 0;
 415         struct kobil_private *priv;
 416
 417         if (count == 0) {
 418                 dbg("%s - port %d write request of 0 bytes",
 419                                                 __func__, 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", __func__, port->number);
 427                 return -ENOMEM;
 428         }
 429
 430         /* Copy data to buffer */
 431         memcpy(priv->buf + priv->filled, buf, count);
 432         usb_serial_debug_data(debug, &port->dev, __func__, count,
 433                                                 priv->buf + priv->filled);
 434         priv->filled = priv->filled + count;
 435
 436         /* only send complete block. TWIN, KAAN SIM and adapter K
 437            use the same protocol. */
 438         if (((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) ||
 439              ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4)))) {
 440                 /* stop reading (except TWIN and KAAN SIM) */
 441                 if ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID)
 442                         || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID))
 443                         usb_kill_urb(port->interrupt_in_urb);
 444
 445                 todo = priv->filled - priv->cur_pos;
 446
 447                 while (todo > 0) {
 448                         /* max 8 byte in one urb (endpoint size) */
 449                         length = (todo < 8) ? todo : 8;
 450                         /* copy data to transfer buffer */
 451                         memcpy(port->write_urb->transfer_buffer,
 452                                         priv->buf + priv->cur_pos, length);
 453                         usb_fill_int_urb(port->write_urb,
 454                                   port->serial->dev,
 455                                   usb_sndintpipe(port->serial->dev,
 456                                         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",
 467                                         __func__, port->number, result);
 468                         todo = priv->filled - priv->cur_pos;
 469
 470                         if (todo > 0)
 471                                 msleep(24);
 472                 }
 473
 474                 priv->filled = 0;
 475                 priv->cur_pos = 0;
 476
 477                 /* someone sets the dev to 0 if the close method
 478                    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 ||
 483                         priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
 484                         /* someone sets the dev to 0 if the close method has
 485                            been called */
 486                         port->interrupt_in_urb->dev = port->serial->dev;
 487
 488                         result = usb_submit_urb(port->interrupt_in_urb,
 489                                                                 GFP_NOIO);
 490                         dbg("%s - port %d Send read URB returns: %i",
 491                                         __func__, port->number, result);
 492                 }
 493         }
 494         return count;
 495 }
 496
 497
 498 static int kobil_write_room(struct tty_struct *tty)
 499 {
 500         /* dbg("%s - port %d", __func__, port->number); */
 501         /* FIXME */
 502         return 8;
 503 }
 504
 505
 506 static int kobil_tiocmget(struct tty_struct *tty, struct file *file)
 507 {
 508         struct usb_serial_port *port = tty->driver_data;
 509         struct kobil_private *priv;
 510         int result;
 511         unsigned char *transfer_buffer;
 512         int transfer_buffer_length = 8;
 513
 514         priv = usb_get_serial_port_data(port);
 515         if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID
 516                         || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
 517                 /* This device doesn't support ioctl calls */
 518                 return -EINVAL;
 519         }
 520
 521         /* allocate memory for transfer buffer */
 522         transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
 523         if (!transfer_buffer)
 524                 return -ENOMEM;
 525
 526         result = usb_control_msg(port->serial->dev,
 527                           usb_rcvctrlpipe(port->serial->dev, 0),
 528                           SUSBCRequest_GetStatusLineState,
 529                           USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
 530                           0,
 531                           0,
 532                           transfer_buffer,
 533                           transfer_buffer_length,
 534                           KOBIL_TIMEOUT);
 535
 536         dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x",
 537             __func__, port->number, result, transfer_buffer[0]);
 538
 539         result = 0;
 540         if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0)
 541                 result = TIOCM_DSR;
 542         kfree(transfer_buffer);
 543         return result;
 544 }
 545
 546 static int kobil_tiocmset(struct tty_struct *tty, struct file *file,
 547                            unsigned int set, unsigned int clear)
 548 {
 549         struct usb_serial_port *port = tty->driver_data;
 550         struct kobil_private *priv;
 551         int result;
 552         int dtr = 0;
 553         int rts = 0;
 554         unsigned char *transfer_buffer;
 555         int transfer_buffer_length = 8;
 556
 557         /* FIXME: locking ? */
 558         priv = usb_get_serial_port_data(port);
 559         if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID
 560                 || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
 561                 /* This device doesn't support ioctl calls */
 562                 return -EINVAL;
 563         }
 564
 565         /* allocate memory for transfer buffer */
 566         transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
 567         if (!transfer_buffer)
 568                 return -ENOMEM;
 569
 570         if (set & TIOCM_RTS)
 571                 rts = 1;
 572         if (set & TIOCM_DTR)
 573                 dtr = 1;
 574         if (clear & TIOCM_RTS)
 575                 rts = 0;
 576         if (clear & TIOCM_DTR)
 577                 dtr = 0;
 578
 579         if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) {
 580                 if (dtr != 0)
 581                         dbg("%s - port %d Setting DTR",
 582                                                 __func__, port->number);
 583                 else
 584                         dbg("%s - port %d Clearing DTR",
 585                                                 __func__, port->number);
 586                 result = usb_control_msg(port->serial->dev,
 587                           usb_rcvctrlpipe(port->serial->dev, 0),
 588                           SUSBCRequest_SetStatusLinesOrQueues,
 589                           USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
 590                           ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR),
 591                           0,
 592                           transfer_buffer,
 593                           0,
 594                           KOBIL_TIMEOUT);
 595         } else {
 596                 if (rts != 0)
 597                         dbg("%s - port %d Setting RTS",
 598                                                 __func__, port->number);
 599                 else
 600                         dbg("%s - port %d Clearing RTS",
 601                                                 __func__, port->number);
 602                 result = usb_control_msg(port->serial->dev,
 603                         usb_rcvctrlpipe(port->serial->dev, 0),
 604                         SUSBCRequest_SetStatusLinesOrQueues,
 605                         USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
 606                         ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS),
 607                         0,
 608                         transfer_buffer,
 609                         0,
 610                         KOBIL_TIMEOUT);
 611         }
 612         dbg("%s - port %d Send set_status_line URB returns: %i",
 613                                         __func__, port->number, result);
 614         kfree(transfer_buffer);
 615         return (result < 0) ? result : 0;
 616 }
 617
 618 static void kobil_set_termios(struct tty_struct *tty,
 619                         struct usb_serial_port *port, struct ktermios *old)
 620 {
 621         struct kobil_private *priv;
 622         int result;
 623         unsigned short urb_val = 0;
 624         int c_cflag = tty->termios->c_cflag;
 625         speed_t speed;
 626
 627         priv = usb_get_serial_port_data(port);
 628         if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
 629                         priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
 630                 /* This device doesn't support ioctl calls */
 631                 *tty->termios = *old;
 632                 return;
 633         }
 634
 635         speed = tty_get_baud_rate(tty);
 636         switch (speed) {
 637         case 1200:
 638                 urb_val = SUSBCR_SBR_1200;
 639                 break;
 640         default:
 641                 speed = 9600;
 642         case 9600:
 643                 urb_val = SUSBCR_SBR_9600;
 644                 break;
 645         }
 646         urb_val |= (c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits :
 647                                                         SUSBCR_SPASB_1StopBit;
 648         if (c_cflag & PARENB) {
 649                 if  (c_cflag & PARODD)
 650                         urb_val |= SUSBCR_SPASB_OddParity;
 651                 else
 652                         urb_val |= SUSBCR_SPASB_EvenParity;
 653         } else
 654                 urb_val |= SUSBCR_SPASB_NoParity;
 655         tty->termios->c_cflag &= ~CMSPAR;
 656         tty_encode_baud_rate(tty, speed, speed);
 657
 658         result = usb_control_msg(port->serial->dev,
 659                   usb_rcvctrlpipe(port->serial->dev, 0),
 660                   SUSBCRequest_SetBaudRateParityAndStopBits,
 661                   USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
 662                   urb_val,
 663                   0,
 664                   NULL,
 665                   0,
 666                   KOBIL_TIMEOUT
 667                 );
 668 }
 669
 670 static int kobil_ioctl(struct tty_struct *tty, struct file *file,
 671                                         unsigned int cmd, unsigned long arg)
 672 {
 673         struct usb_serial_port *port = tty->driver_data;
 674         struct kobil_private *priv = usb_get_serial_port_data(port);
 675         unsigned char *transfer_buffer;
 676         int transfer_buffer_length = 8;
 677         int result;
 678
 679         if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
 680                         priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)
 681                 /* This device doesn't support ioctl calls */
 682                 return -ENOIOCTLCMD;
 683
 684         switch (cmd) {
 685         case TCFLSH:
 686                 transfer_buffer = kmalloc(transfer_buffer_length, GFP_KERNEL);
 687                 if (!transfer_buffer)
 688                         return -ENOBUFS;
 689
 690                 result = usb_control_msg(port->serial->dev,
 691                           usb_rcvctrlpipe(port->serial->dev, 0),
 692                           SUSBCRequest_Misc,
 693                           USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
 694                           SUSBCR_MSC_ResetAllQueues,
 695                           0,
 696                           NULL, /* transfer_buffer, */
 697                           0,
 698                           KOBIL_TIMEOUT
 699                         );
 700
 701                 dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __func__, port->number, result);
 702                 kfree(transfer_buffer);
 703                 return (result < 0) ? -EIO: 0;
 704         default:
 705                 return -ENOIOCTLCMD;
 706         }
 707 }
 708
 709 static int __init kobil_init(void)
 710 {
 711         int retval;
 712         retval = usb_serial_register(&kobil_device);
 713         if (retval)
 714                 goto failed_usb_serial_register;
 715         retval = usb_register(&kobil_driver);
 716         if (retval)
 717                 goto failed_usb_register;
 718
 719         printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
 720                DRIVER_DESC "\n");
 721
 722         return 0;
 723 failed_usb_register:
 724         usb_serial_deregister(&kobil_device);
 725 failed_usb_serial_register:
 726         return retval;
 727 }
 728
 729
 730 static void __exit kobil_exit(void)
 731 {
 732         usb_deregister(&kobil_driver);
 733         usb_serial_deregister(&kobil_device);
 734 }
 735
 736 module_init(kobil_init);
 737 module_exit(kobil_exit);
 738
 739 MODULE_AUTHOR(DRIVER_AUTHOR);
 740 MODULE_DESCRIPTION(DRIVER_DESC);
 741 MODULE_LICENSE("GPL");
 742
 743 module_param(debug, bool, S_IRUGO | S_IWUSR);
 744 MODULE_PARM_DESC(debug, "Debug enabled or not");