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  * (23/05/2003) tw
  25  *      Add support for KAAN SIM
  26  *
  27  * (12/03/2002) tw
  28  *      Fixed bug with Pro-readers and PNP
  29  *
  30  * (11/13/2002) tw
  31  *      Initial version.
  32  */
  33
  34
  35 #include <linux/config.h>
  36 #include <linux/kernel.h>
  37 #include <linux/errno.h>
  38 #include <linux/init.h>
  39 #include <linux/slab.h>
  40 #include <linux/tty.h>
  41 #include <linux/tty_driver.h>
  42 #include <linux/tty_flip.h>
  43 #include <linux/module.h>
  44 #include <linux/spinlock.h>
  45 #include <asm/uaccess.h>
  46 #include <linux/usb.h>
  47
  48 #include <linux/ioctl.h>
  49
  50
  51 #include "kobil_sct.h"
  52
  53 #ifdef CONFIG_USB_SERIAL_DEBUG
  54         static int debug = 1;
  55 #else
  56         static int debug;
  57 #endif
  58
  59 #include "usb-serial.h"
  60
  61 /* Version Information */
  62 #define DRIVER_VERSION "12/03/2002"
  63 #define DRIVER_AUTHOR "KOBIL Systems GmbH - http://www.kobil.com"
  64 #define DRIVER_DESC "KOBIL USB Smart Card Terminal Driver (experimental)"
  65
  66 #define KOBIL_VENDOR_ID            0x0D46
  67 #define KOBIL_ADAPTER_B_PRODUCT_ID 0x2011
  68 #define KOBIL_ADAPTER_K_PRODUCT_ID 0x2012
  69 #define KOBIL_USBTWIN_PRODUCT_ID   0x0078
  70 #define KOBIL_KAAN_SIM_PRODUCT_ID  0x0081
  71
  72 #define KOBIL_TIMEOUT    500
  73 #define KOBIL_BUF_LENGTH 300
  74
  75
  76 /* Function prototypes */
  77 static int  kobil_startup (struct usb_serial *serial);
  78 static void kobil_shutdown (struct usb_serial *serial);
  79 static int  kobil_open (struct usb_serial_port *port, struct file *filp);
  80 static void kobil_close (struct usb_serial_port *port, struct file *filp);
  81 static int  kobil_write (struct usb_serial_port *port, int from_user,
  82                          const unsigned char *buf, int count);
  83 static int  kobil_write_room(struct usb_serial_port *port);
  84 static int  kobil_ioctl(struct usb_serial_port *port, struct file *file,
  85                         unsigned int cmd, unsigned long arg);
  86 static void kobil_read_int_callback( struct urb *urb );
  87 static void kobil_write_callback( struct urb *purb );
  88
  89
  90 static struct usb_device_id id_table [] = {
  91         { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) },
  92         { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_K_PRODUCT_ID) },
  93         { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_USBTWIN_PRODUCT_ID) },
  94         { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_KAAN_SIM_PRODUCT_ID) },
  95         { }                     /* Terminating entry */
  96 };
  97
  98
  99 MODULE_DEVICE_TABLE (usb, id_table);
 100
 101 struct usb_serial_device_type kobil_device = {
 102         .owner =                THIS_MODULE,
 103         .name =                 "KOBIL USB smart card terminal",
 104         .id_table =             id_table,
 105         .num_interrupt_in =     NUM_DONT_CARE,
 106         .num_bulk_in =          0,
 107         .num_bulk_out =         0,
 108         .num_ports =            1,
 109         .startup =              kobil_startup,
 110         .shutdown =             kobil_shutdown,
 111         .ioctl =                kobil_ioctl,
 112         .open =                 kobil_open,
 113         .close =                kobil_close,
 114         .write =                kobil_write,
 115         .write_room =           kobil_write_room,
 116         .read_int_callback =    kobil_read_int_callback,
 117 };
 118
 119
 120 struct kobil_private {
 121         int write_int_endpoint_address;
 122         int read_int_endpoint_address;
 123         unsigned char buf[KOBIL_BUF_LENGTH]; // buffer for the APDU to send
 124         int filled;  // index of the last char in buf
 125         int cur_pos; // index of the next char to send in buf
 126         __u16 device_type;
 127         int line_state;
 128         struct termios internal_termios;
 129 };
 130
 131
 132 static int kobil_startup (struct usb_serial *serial)
 133 {
 134         int i;
 135         struct kobil_private *priv;
 136         struct usb_device *pdev;
 137         struct usb_config_descriptor *actconfig;
 138         struct usb_interface *interface;
 139         struct usb_interface_descriptor *altsetting;
 140         struct usb_endpoint_descriptor *endpoint;
 141
 142         serial->port->private = kmalloc(sizeof(struct kobil_private), GFP_KERNEL);
 143         if (!serial->port->private){
 144                 return -1;
 145         }
 146
 147         priv = (struct kobil_private *) serial->port->private;
 148         priv->filled = 0;
 149         priv->cur_pos = 0;
 150         priv->device_type = serial->product;
 151         priv->line_state = 0;
 152
 153         switch (priv->device_type){
 154         case KOBIL_ADAPTER_B_PRODUCT_ID:
 155                 printk(KERN_DEBUG "KOBIL B1 PRO / KAAN PRO detected\n");
 156                 break;
 157         case KOBIL_ADAPTER_K_PRODUCT_ID:
 158                 printk(KERN_DEBUG "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n");
 159                 break;
 160         case KOBIL_USBTWIN_PRODUCT_ID:
 161                 printk(KERN_DEBUG "KOBIL USBTWIN detected\n");
 162                 break;
 163         case KOBIL_KAAN_SIM_PRODUCT_ID:
 164                 printk(KERN_DEBUG "KOBIL KAAN SIM detected\n");
 165                 break;
 166         }
 167
 168         // search for the neccessary endpoints
 169         pdev = serial->dev;
 170         actconfig = pdev->actconfig;
 171         interface = actconfig->interface;
 172         altsetting = interface->altsetting;
 173         endpoint = altsetting->endpoint;
 174
 175         for (i = 0; i < altsetting->bNumEndpoints; i++) {
 176                 endpoint = &altsetting->endpoint[i];
 177                 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) &&
 178                     ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) {
 179                         dbg("%s Found interrupt out endpoint. Address: %d", __FUNCTION__, endpoint->bEndpointAddress);
 180                         priv->write_int_endpoint_address = endpoint->bEndpointAddress;
 181                 }
 182                 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) &&
 183                     ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) {
 184                         dbg("%s Found interrupt in  endpoint. Address: %d", __FUNCTION__, endpoint->bEndpointAddress);
 185                         priv->read_int_endpoint_address = endpoint->bEndpointAddress;
 186                 }
 187         }
 188         return 0;
 189 }
 190
 191
 192 static void kobil_shutdown (struct usb_serial *serial)
 193 {
 194         int i;
 195         dbg("%s - port %d", __FUNCTION__, serial->port->number);
 196
 197         for (i=0; i < serial->num_ports; ++i) {
 198                 while (serial->port[i].open_count > 0) {
 199                         kobil_close (&serial->port[i], NULL);
 200                 }
 201                 if (serial->port[i].private) {
 202                         kfree(serial->port[i].private);
 203                 }
 204         }
 205 }
 206
 207
 208 static int kobil_open (struct usb_serial_port *port, struct file *filp)
 209 {
 210         int i, result = 0;
 211         struct kobil_private *priv;
 212         unsigned char *transfer_buffer;
 213         int transfer_buffer_length = 8;
 214         int write_urb_transfer_buffer_length = 8;
 215
 216         dbg("%s - port %d", __FUNCTION__, port->number);
 217         priv = (struct kobil_private *) port->private;
 218         priv->line_state = 0;
 219
 220         if (port_paranoia_check (port, __FUNCTION__))
 221                 return -ENODEV;
 222
 223         // someone sets the dev to 0 if the close method has been called
 224         port->interrupt_in_urb->dev = port->serial->dev;
 225
 226
 227         /* force low_latency on so that our tty_push actually forces
 228          * the data through, otherwise it is scheduled, and with high
 229          * data rates (like with OHCI) data can get lost.
 230          */
 231         port->tty->low_latency = 1;
 232
 233         // without this, every push_tty_char is echoed :-(
 234         port->tty->termios->c_lflag = 0;
 235         port->tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE);
 236         port->tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF;
 237         port->tty->termios->c_oflag &= ~ONLCR; // do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D)
 238
 239         // set up internal termios structure
 240         priv->internal_termios.c_iflag = port->tty->termios->c_iflag;
 241         priv->internal_termios.c_oflag = port->tty->termios->c_oflag;
 242         priv->internal_termios.c_cflag = port->tty->termios->c_cflag;
 243         priv->internal_termios.c_lflag = port->tty->termios->c_lflag;
 244
 245         for (i=0; i<NCCS; i++) {
 246                 priv->internal_termios.c_cc[i] = port->tty->termios->c_cc[i];
 247         }
 248
 249         // allocate memory for transfer buffer
 250         transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL);
 251         if (! transfer_buffer) {
 252                 return -1;
 253         } else {
 254                 memset(transfer_buffer, 0, transfer_buffer_length);
 255         }
 256
 257         // allocate write_urb
 258         if (!port->write_urb) {
 259                 dbg("%s - port %d  Allocating port->write_urb", __FUNCTION__, port->number);
 260                 port->write_urb = usb_alloc_urb(0);
 261                 if (!port->write_urb) {
 262                         dbg("%s - port %d usb_alloc_urb failed", __FUNCTION__, port->number);
 263                         kfree(transfer_buffer);
 264                         return -1;
 265                 }
 266         }
 267
 268         // allocate memory for write_urb transfer buffer
 269         port->write_urb->transfer_buffer = (unsigned char *) kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL);
 270         if (! port->write_urb->transfer_buffer) {
 271                 kfree(transfer_buffer);
 272                 return -1;
 273         }
 274
 275         // get hardware version
 276         result = usb_control_msg( port->serial->dev,
 277                                   usb_rcvctrlpipe(port->serial->dev, 0 ),
 278                                   SUSBCRequest_GetMisc,
 279                                   USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
 280                                   SUSBCR_MSC_GetHWVersion,
 281                                   0,
 282                                   transfer_buffer,
 283                                   transfer_buffer_length,
 284                                   KOBIL_TIMEOUT
 285                 );
 286         dbg("%s - port %d Send get_HW_version URB returns: %i", __FUNCTION__, port->number, result);
 287         dbg("Harware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] );
 288
 289         // get firmware version
 290         result = usb_control_msg( port->serial->dev,
 291                                   usb_rcvctrlpipe(port->serial->dev, 0 ),
 292                                   SUSBCRequest_GetMisc,
 293                                   USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
 294                                   SUSBCR_MSC_GetFWVersion,
 295                                   0,
 296                                   transfer_buffer,
 297                                   transfer_buffer_length,
 298                                   KOBIL_TIMEOUT
 299                 );
 300         dbg("%s - port %d Send get_FW_version URB returns: %i", __FUNCTION__, port->number, result);
 301         dbg("Firmware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] );
 302
 303         if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
 304                 // Setting Baudrate, Parity and Stopbits
 305                 result = usb_control_msg( port->serial->dev,
 306                                           usb_rcvctrlpipe(port->serial->dev, 0 ),
 307                                           SUSBCRequest_SetBaudRateParityAndStopBits,
 308                                           USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
 309                                           SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity | SUSBCR_SPASB_1StopBit,
 310                                           0,
 311                                           transfer_buffer,
 312                                           0,
 313                                           KOBIL_TIMEOUT
 314                         );
 315                 dbg("%s - port %d Send set_baudrate URB returns: %i", __FUNCTION__, port->number, result);
 316
 317                 // reset all queues
 318                 result = usb_control_msg( port->serial->dev,
 319                                           usb_rcvctrlpipe(port->serial->dev, 0 ),
 320                                           SUSBCRequest_Misc,
 321                                           USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
 322                                           SUSBCR_MSC_ResetAllQueues,
 323                                           0,
 324                                           transfer_buffer,
 325                                           0,
 326                                           KOBIL_TIMEOUT
 327                         );
 328                 dbg("%s - port %d Send reset_all_queues URB returns: %i", __FUNCTION__, port->number, result);
 329         }
 330
 331         if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
 332             priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
 333                 // start reading (Adapter B 'cause PNP string)
 334                 result = usb_submit_urb( port->interrupt_in_urb );
 335                 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result);
 336         }
 337
 338         kfree(transfer_buffer);
 339         return 0;
 340 }
 341
 342
 343 static void kobil_close (struct usb_serial_port *port, struct file *filp)
 344 {
 345         dbg("%s - port %d", __FUNCTION__, port->number);
 346
 347         if (port->write_urb){
 348                 usb_unlink_urb( port->write_urb );
 349                 usb_free_urb( port->write_urb );
 350                 port->write_urb = 0;
 351         }
 352         if (port->interrupt_in_urb){
 353                 usb_unlink_urb (port->interrupt_in_urb);
 354         }
 355 }
 356
 357
 358 static void kobil_read_int_callback( struct urb *purb )
 359 {
 360         int i;
 361         struct usb_serial_port *port = (struct usb_serial_port *) purb->context;
 362         struct tty_struct *tty;
 363         unsigned char *data = purb->transfer_buffer;
 364         char *dbg_data;
 365
 366         dbg("%s - port %d", __FUNCTION__, port->number);
 367
 368         if (purb->status) {
 369                 dbg("%s - port %d Read int status not zero: %d", __FUNCTION__, port->number, purb->status);
 370                 return;
 371         }
 372
 373         tty = port->tty;
 374         if (purb->actual_length) {
 375
 376                 // BEGIN DEBUG
 377                 dbg_data = (unsigned char *) kmalloc((3 *  purb->actual_length + 10) * sizeof(char), GFP_KERNEL);
 378                 if (! dbg_data) {
 379                         return;
 380                 }
 381                 memset(dbg_data, 0, (3 *  purb->actual_length + 10));
 382                 for (i = 0; i < purb->actual_length; i++) {
 383                         sprintf(dbg_data +3*i, "%02X ", data[i]);
 384                 }
 385                 dbg(" <-- %s", dbg_data );
 386                 kfree(dbg_data);
 387                 // END DEBUG
 388
 389                 for (i = 0; i < purb->actual_length; ++i) {
 390                         // if we insert more than TTY_FLIPBUF_SIZE characters, we drop them.
 391                         if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
 392                                 tty_flip_buffer_push(tty);
 393                         }
 394                         // this doesn't actually push the data through unless tty->low_latency is set
 395                         tty_insert_flip_char(tty, data[i], 0);
 396                 }
 397                 tty_flip_buffer_push(tty);
 398         }
 399 }
 400
 401
 402 static void kobil_write_callback( struct urb *purb )
 403 {
 404 }
 405
 406
 407 static int kobil_write (struct usb_serial_port *port, int from_user,
 408                         const unsigned char *buf, int count)
 409 {
 410         int length = 0;
 411         int result = 0;
 412         int todo = 0;
 413         struct kobil_private * priv;
 414         int i;
 415         char *data;
 416
 417         if (count == 0) {
 418                 dbg("%s - port %d write request of 0 bytes", __FUNCTION__, port->number);
 419                 return 0;
 420         }
 421
 422         priv = (struct kobil_private *) port->private;
 423
 424         if (count > (KOBIL_BUF_LENGTH - priv->filled)) {
 425                 dbg("%s - port %d Error: write request bigger than buffer size", __FUNCTION__, port->number);
 426                 return -ENOMEM;
 427         }
 428
 429         // BEGIN DEBUG
 430         data = (unsigned char *) kmalloc((3 * count + 10) * sizeof(char), GFP_KERNEL);
 431         if (! data) {
 432                 return (-1);
 433         }
 434         memset(data, 0, (3 * count + 10));
 435         for (i = 0; i < count; i++) {
 436                 sprintf(data +3*i, "%02X ", buf[i]);
 437         }
 438         dbg(" %d --> %s", port->number, data );
 439         kfree(data);
 440         // END DEBUG
 441
 442         // Copy data to buffer
 443         if (from_user) {
 444                 if (copy_from_user(priv->buf + priv->filled, buf, count)) {
 445                         return -EFAULT;
 446                 }
 447         } else {
 448                 memcpy (priv->buf + priv->filled, buf, count);
 449         }
 450
 451         priv->filled = priv->filled + count;
 452
 453
 454         // only send complete block. TWIN, KAAN SIM and adapter K use the same protocol.
 455         if ( ((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) ||
 456              ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4))) ) {
 457
 458                 // stop reading (except TWIN and KAAN SIM)
 459                 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) {
 460                         usb_unlink_urb( port->interrupt_in_urb );
 461                 }
 462
 463                 todo = priv->filled - priv->cur_pos;
 464
 465                 while(todo > 0) {
 466                         // max 8 byte in one urb (endpoint size)
 467                         length = (todo < 8) ? todo : 8;
 468                         // copy data to transfer buffer
 469                         memcpy(port->write_urb->transfer_buffer, priv->buf + priv->cur_pos, length );
 470
 471                         usb_fill_bulk_urb( port->write_urb,
 472                                            port->serial->dev,
 473                                            usb_sndbulkpipe( port->serial->dev, priv->write_int_endpoint_address),
 474                                            port->write_urb->transfer_buffer,
 475                                            length,
 476                                            kobil_write_callback,
 477                                            port
 478                                 );
 479
 480                         priv->cur_pos = priv->cur_pos + length;
 481                         result = usb_submit_urb( port->write_urb );
 482                         dbg("%s - port %d Send write URB returns: %i", __FUNCTION__, port->number, result);
 483                         todo = priv->filled - priv->cur_pos;
 484
 485                         if (todo > 0) {
 486                                 //mdelay(16);
 487                                 set_current_state(TASK_UNINTERRUPTIBLE);
 488                                 schedule_timeout(24 * HZ / 1000);
 489                         }
 490
 491                 } // end while
 492
 493                 priv->filled = 0;
 494                 priv->cur_pos = 0;
 495
 496                 // start reading (except TWIN and KAAN SIM)
 497                 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) {
 498                         // someone sets the dev to 0 if the close method has been called
 499                         port->interrupt_in_urb->dev = port->serial->dev;
 500
 501                         // start reading
 502                         result = usb_submit_urb( port->interrupt_in_urb );
 503                         dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result);
 504                 }
 505
 506         }
 507         return count;
 508 }
 509
 510
 511 static int kobil_write_room (struct usb_serial_port *port)
 512 {
 513         return 8;
 514 }
 515
 516
 517 static int  kobil_ioctl(struct usb_serial_port *port, struct file *file,
 518                         unsigned int cmd, unsigned long arg)
 519 {
 520         struct kobil_private * priv;
 521         int mask;
 522         int result;
 523         unsigned short urb_val = 0;
 524         unsigned char *transfer_buffer;
 525         int transfer_buffer_length = 8;
 526         char *settings;
 527
 528         priv = (struct kobil_private *) port->private;
 529         if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) {
 530                 // This device doesn't support ioctl calls
 531                 return 0;
 532         }
 533
 534         switch (cmd) {
 535         case TCGETS:   // 0x5401
 536                 result = verify_area(VERIFY_WRITE, (void *)arg, sizeof(struct termios));
 537                 if (result) {
 538                         dbg("%s - port %d Error in verify_area", __FUNCTION__, port->number);
 539                         return(result);
 540                 }
 541                 kernel_termios_to_user_termios((struct termios *)arg, &priv->internal_termios);
 542                 return 0;
 543
 544         case TCSETS:   // 0x5402
 545                 if (! &port->tty->termios) {
 546                         dbg("%s - port %d Error: port->tty->termios is NULL", __FUNCTION__, port->number);
 547                         return -ENOTTY;
 548                 }
 549                 result = verify_area(VERIFY_READ, (void *)arg, sizeof(struct termios));
 550                 if (result) {
 551                         dbg("%s - port %d Error in verify_area", __FUNCTION__, port->number);
 552                         return result;
 553                 }
 554                 user_termios_to_kernel_termios( &priv->internal_termios, (struct termios *)arg);
 555
 556                 settings = (unsigned char *) kmalloc(50, GFP_KERNEL);
 557                 if (! settings) {
 558                         return -ENOBUFS;
 559                 }
 560                 memset(settings, 0, 50);
 561
 562                 switch (priv->internal_termios.c_cflag & CBAUD) {
 563                 case B1200:
 564                         urb_val = SUSBCR_SBR_1200;
 565                         strcat(settings, "1200 ");
 566                         break;
 567                 case B9600:
 568                 default:
 569                         urb_val = SUSBCR_SBR_9600;
 570                         strcat(settings, "9600 ");
 571                         break;
 572                 }
 573
 574                 urb_val |= (priv->internal_termios.c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits : SUSBCR_SPASB_1StopBit;
 575                 strcat(settings, (priv->internal_termios.c_cflag & CSTOPB) ? "2 StopBits " : "1 StopBit ");
 576
 577                 if (priv->internal_termios.c_cflag & PARENB) {
 578                         if  (priv->internal_termios.c_cflag & PARODD) {
 579                                 urb_val |= SUSBCR_SPASB_OddParity;
 580                                 strcat(settings, "Odd Parity");
 581                         } else {
 582                                 urb_val |= SUSBCR_SPASB_EvenParity;
 583                                 strcat(settings, "Even Parity");
 584                         }
 585                 } else {
 586                         urb_val |= SUSBCR_SPASB_NoParity;
 587                         strcat(settings, "No Parity");
 588                 }
 589                 dbg("%s - port %d setting port to: %s", __FUNCTION__, port->number, settings );
 590
 591                 result = usb_control_msg( port->serial->dev,
 592                                           usb_rcvctrlpipe(port->serial->dev, 0 ),
 593                                           SUSBCRequest_SetBaudRateParityAndStopBits,
 594                                           USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
 595                                           urb_val,
 596                                           0,
 597                                           settings,
 598                                           0,
 599                                           KOBIL_TIMEOUT
 600                         );
 601
 602                 dbg("%s - port %d Send set_baudrate URB returns: %i", __FUNCTION__, port->number, result);
 603                 kfree(settings);
 604                 return 0;
 605
 606         case TCFLSH:   // 0x540B
 607                 result = usb_control_msg( port->serial->dev,
 608                                           usb_rcvctrlpipe(port->serial->dev, 0 ),
 609                                           SUSBCRequest_Misc,
 610                                           USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
 611                                           SUSBCR_MSC_ResetAllQueues,
 612                                           0,
 613                                           NULL,
 614                                           0,
 615                                           KOBIL_TIMEOUT
 616                         );
 617
 618                 dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __FUNCTION__, port->number, result);
 619                 return ((result < 0) ? -EFAULT : 0);
 620
 621         case TIOCMGET: // 0x5415
 622                 // allocate memory for transfer buffer
 623                 transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL);
 624                 if (! transfer_buffer) {
 625                         return -ENOBUFS;
 626                 } else {
 627                         memset(transfer_buffer, 0, transfer_buffer_length);
 628                 }
 629
 630                 result = usb_control_msg( port->serial->dev,
 631                                           usb_rcvctrlpipe(port->serial->dev, 0 ),
 632                                           SUSBCRequest_GetStatusLineState,
 633                                           USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
 634                                           0,
 635                                           0,
 636                                           transfer_buffer,
 637                                           transfer_buffer_length,
 638                                           KOBIL_TIMEOUT
 639                         );
 640
 641                 dbg("%s - port %d Send get_status_line_state (TIOCMGET) URB returns: %i. Statusline: %02x",
 642                     __FUNCTION__, port->number, result, transfer_buffer[0]);
 643
 644                 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) {
 645                         priv->line_state |= TIOCM_DSR;
 646                 } else {
 647                         priv->line_state &= ~TIOCM_DSR;
 648                 }
 649
 650                 kfree(transfer_buffer);
 651                 return put_user(priv->line_state, (unsigned long *) arg);
 652
 653         case TIOCMSET: // 0x5418
 654                 if (get_user(mask, (unsigned long *) arg)){
 655                         return -EFAULT;
 656                 }
 657                 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) {
 658                         if ((mask & TIOCM_DTR) != 0){
 659                                 dbg("%s - port %d Setting DTR", __FUNCTION__, port->number);
 660                         } else {
 661                                 dbg("%s - port %d Clearing DTR", __FUNCTION__, port->number);
 662                         }
 663                         result = usb_control_msg( port->serial->dev,
 664                                                   usb_rcvctrlpipe(port->serial->dev, 0 ),
 665                                                   SUSBCRequest_SetStatusLinesOrQueues,
 666                                                   USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
 667                                                   ( ((mask & TIOCM_DTR) != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR),
 668                                                   0,
 669                                                   NULL,
 670                                                   0,
 671                                                   KOBIL_TIMEOUT
 672                                 );
 673
 674                 } else {
 675                         if ((mask & TIOCM_RTS) != 0){
 676                                 dbg("%s - port %d Setting RTS", __FUNCTION__, port->number);
 677                         } else {
 678                                 dbg("%s - port %d Clearing RTS", __FUNCTION__, port->number);
 679                         }
 680                         result = usb_control_msg( port->serial->dev,
 681                                                   usb_rcvctrlpipe(port->serial->dev, 0 ),
 682                                                   SUSBCRequest_SetStatusLinesOrQueues,
 683                                                   USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
 684                                                   (((mask & TIOCM_RTS) != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS),
 685                                                   0,
 686                                                   NULL,
 687                                                   0,
 688                                                   KOBIL_TIMEOUT
 689                                 );
 690                 }
 691                 dbg("%s - port %d Send set_status_line (TIOCMSET) URB returns: %i", __FUNCTION__, port->number, result);
 692                 return ((result < 0) ? -EFAULT : 0);
 693         }
 694         return 0;
 695 }
 696
 697
 698 static int __init kobil_init (void)
 699 {
 700         usb_serial_register (&kobil_device);
 701
 702         info(DRIVER_VERSION " " DRIVER_AUTHOR);
 703         info(DRIVER_DESC);
 704
 705         return 0;
 706 }
 707
 708
 709 static void __exit kobil_exit (void)
 710 {
 711         usb_serial_deregister (&kobil_device);
 712 }
 713
 714 module_init(kobil_init);
 715 module_exit(kobil_exit);
 716
 717 MODULE_AUTHOR( DRIVER_AUTHOR );
 718 MODULE_DESCRIPTION( DRIVER_DESC );
 719 MODULE_LICENSE( "GPL" );
 720
 721 MODULE_PARM(debug, "i");
 722 MODULE_PARM_DESC(debug, "Debug enabled or not");