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 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_shutdown (struct usb_serial *serial); 73 static int kobil_open (struct usb_serial_port *port, struct file *filp); 74 static void kobil_close (struct usb_serial_port *port, struct file *filp); 75 static int kobil_write (struct usb_serial_port *port, 76 const unsigned char *buf, int count); 77 static int kobil_write_room(struct usb_serial_port *port); 78 static int kobil_ioctl(struct usb_serial_port *port, struct file *file, 79 unsigned int cmd, unsigned long arg); 80 static int kobil_tiocmget(struct usb_serial_port *port, struct file *file); 81 static int kobil_tiocmset(struct usb_serial_port *port, 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 usb_serial_port *port, struct ktermios *old); 86 87 88 static struct usb_device_id id_table [] = { 89 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) }, 90 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_K_PRODUCT_ID) }, 91 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_USBTWIN_PRODUCT_ID) }, 92 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_KAAN_SIM_PRODUCT_ID) }, 93 { } /* Terminating entry */ 94 }; 95 96 97 MODULE_DEVICE_TABLE (usb, id_table); 98 99 static struct usb_driver kobil_driver = { 100 .name = "kobil", 101 .probe = usb_serial_probe, 102 .disconnect = usb_serial_disconnect, 103 .id_table = id_table, 104 .no_dynamic_id = 1, 105 }; 106 107 108 static struct usb_serial_driver kobil_device = { 109 .driver = { 110 .owner = THIS_MODULE, 111 .name = "kobil", 112 }, 113 .description = "KOBIL USB smart card terminal", 114 .usb_driver = &kobil_driver, 115 .id_table = id_table, 116 .num_interrupt_in = NUM_DONT_CARE, 117 .num_bulk_in = 0, 118 .num_bulk_out = 0, 119 .num_ports = 1, 120 .attach = kobil_startup, 121 .shutdown = kobil_shutdown, 122 .ioctl = kobil_ioctl, 123 .set_termios = kobil_set_termios, 124 .tiocmget = kobil_tiocmget, 125 .tiocmset = kobil_tiocmset, 126 .open = kobil_open, 127 .close = kobil_close, 128 .write = kobil_write, 129 .write_room = kobil_write_room, 130 .read_int_callback = kobil_read_int_callback, 131 }; 132 133 134 struct kobil_private { 135 int write_int_endpoint_address; 136 int read_int_endpoint_address; 137 unsigned char buf[KOBIL_BUF_LENGTH]; // buffer for the APDU to send 138 int filled; // index of the last char in buf 139 int cur_pos; // index of the next char to send in buf 140 __u16 device_type; 141 int line_state; 142 }; 143 144 145 static int kobil_startup (struct usb_serial *serial) 146 { 147 int i; 148 struct kobil_private *priv; 149 struct usb_device *pdev; 150 struct usb_host_config *actconfig; 151 struct usb_interface *interface; 152 struct usb_host_interface *altsetting; 153 struct usb_host_endpoint *endpoint; 154 155 priv = kmalloc(sizeof(struct kobil_private), GFP_KERNEL); 156 if (!priv){ 157 return -ENOMEM; 158 } 159 160 priv->filled = 0; 161 priv->cur_pos = 0; 162 priv->device_type = le16_to_cpu(serial->dev->descriptor.idProduct); 163 priv->line_state = 0; 164 165 switch (priv->device_type){ 166 case KOBIL_ADAPTER_B_PRODUCT_ID: 167 printk(KERN_DEBUG "KOBIL B1 PRO / KAAN PRO detected\n"); 168 break; 169 case KOBIL_ADAPTER_K_PRODUCT_ID: 170 printk(KERN_DEBUG "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n"); 171 break; 172 case KOBIL_USBTWIN_PRODUCT_ID: 173 printk(KERN_DEBUG "KOBIL USBTWIN detected\n"); 174 break; 175 case KOBIL_KAAN_SIM_PRODUCT_ID: 176 printk(KERN_DEBUG "KOBIL KAAN SIM detected\n"); 177 break; 178 } 179 usb_set_serial_port_data(serial->port[0], priv); 180 181 // search for the necessary endpoints 182 pdev = serial->dev; 183 actconfig = pdev->actconfig; 184 interface = actconfig->interface[0]; 185 altsetting = interface->cur_altsetting; 186 endpoint = altsetting->endpoint; 187 188 for (i = 0; i < altsetting->desc.bNumEndpoints; i++) { 189 endpoint = &altsetting->endpoint[i]; 190 if (usb_endpoint_is_int_out(&endpoint->desc)) { 191 dbg("%s Found interrupt out endpoint. Address: %d", __FUNCTION__, endpoint->desc.bEndpointAddress); 192 priv->write_int_endpoint_address = endpoint->desc.bEndpointAddress; 193 } 194 if (usb_endpoint_is_int_in(&endpoint->desc)) { 195 dbg("%s Found interrupt in endpoint. Address: %d", __FUNCTION__, endpoint->desc.bEndpointAddress); 196 priv->read_int_endpoint_address = endpoint->desc.bEndpointAddress; 197 } 198 } 199 return 0; 200 } 201 202 203 static void kobil_shutdown (struct usb_serial *serial) 204 { 205 int i; 206 dbg("%s - port %d", __FUNCTION__, serial->port[0]->number); 207 208 for (i=0; i < serial->num_ports; ++i) { 209 while (serial->port[i]->open_count > 0) { 210 kobil_close (serial->port[i], NULL); 211 } 212 kfree(usb_get_serial_port_data(serial->port[i])); 213 usb_set_serial_port_data(serial->port[i], NULL); 214 } 215 } 216 217 218 static int kobil_open (struct usb_serial_port *port, struct file *filp) 219 { 220 int result = 0; 221 struct kobil_private *priv; 222 unsigned char *transfer_buffer; 223 int transfer_buffer_length = 8; 224 int write_urb_transfer_buffer_length = 8; 225 226 dbg("%s - port %d", __FUNCTION__, port->number); 227 priv = usb_get_serial_port_data(port); 228 priv->line_state = 0; 229 230 // someone sets the dev to 0 if the close method has been called 231 port->interrupt_in_urb->dev = port->serial->dev; 232 233 234 /* force low_latency on so that our tty_push actually forces 235 * the data through, otherwise it is scheduled, and with high 236 * data rates (like with OHCI) data can get lost. 237 */ 238 port->tty->low_latency = 1; 239 240 // without this, every push_tty_char is echoed :-( 241 port->tty->termios->c_lflag = 0; 242 port->tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE); 243 port->tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF; 244 port->tty->termios->c_oflag &= ~ONLCR; // do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) 245 246 // allocate memory for transfer buffer 247 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 248 if (! transfer_buffer) { 249 return -ENOMEM; 250 } 251 252 // allocate write_urb 253 if (!port->write_urb) { 254 dbg("%s - port %d Allocating port->write_urb", __FUNCTION__, port->number); 255 port->write_urb = usb_alloc_urb(0, GFP_KERNEL); 256 if (!port->write_urb) { 257 dbg("%s - port %d usb_alloc_urb failed", __FUNCTION__, port->number); 258 kfree(transfer_buffer); 259 return -ENOMEM; 260 } 261 } 262 263 // allocate memory for write_urb transfer buffer 264 port->write_urb->transfer_buffer = kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL); 265 if (! port->write_urb->transfer_buffer) { 266 kfree(transfer_buffer); 267 usb_free_urb(port->write_urb); 268 port->write_urb = NULL; 269 return -ENOMEM; 270 } 271 272 // get hardware version 273 result = usb_control_msg( port->serial->dev, 274 usb_rcvctrlpipe(port->serial->dev, 0 ), 275 SUSBCRequest_GetMisc, 276 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 277 SUSBCR_MSC_GetHWVersion, 278 0, 279 transfer_buffer, 280 transfer_buffer_length, 281 KOBIL_TIMEOUT 282 ); 283 dbg("%s - port %d Send get_HW_version URB returns: %i", __FUNCTION__, port->number, result); 284 dbg("Harware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] ); 285 286 // get firmware version 287 result = usb_control_msg( port->serial->dev, 288 usb_rcvctrlpipe(port->serial->dev, 0 ), 289 SUSBCRequest_GetMisc, 290 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 291 SUSBCR_MSC_GetFWVersion, 292 0, 293 transfer_buffer, 294 transfer_buffer_length, 295 KOBIL_TIMEOUT 296 ); 297 dbg("%s - port %d Send get_FW_version URB returns: %i", __FUNCTION__, port->number, result); 298 dbg("Firmware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] ); 299 300 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) { 301 // Setting Baudrate, Parity and Stopbits 302 result = usb_control_msg( port->serial->dev, 303 usb_rcvctrlpipe(port->serial->dev, 0 ), 304 SUSBCRequest_SetBaudRateParityAndStopBits, 305 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 306 SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity | SUSBCR_SPASB_1StopBit, 307 0, 308 transfer_buffer, 309 0, 310 KOBIL_TIMEOUT 311 ); 312 dbg("%s - port %d Send set_baudrate URB returns: %i", __FUNCTION__, 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", __FUNCTION__, port->number, result); 326 } 327 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 328 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 329 // start reading (Adapter B 'cause PNP string) 330 result = usb_submit_urb( port->interrupt_in_urb, GFP_ATOMIC ); 331 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); 332 } 333 334 kfree(transfer_buffer); 335 return 0; 336 } 337 338 339 static void kobil_close (struct usb_serial_port *port, struct file *filp) 340 { 341 dbg("%s - port %d", __FUNCTION__, port->number); 342 343 if (port->write_urb) { 344 usb_kill_urb(port->write_urb); 345 usb_free_urb( port->write_urb ); 346 port->write_urb = NULL; 347 } 348 usb_kill_urb(port->interrupt_in_urb); 349 } 350 351 352 static void kobil_read_int_callback(struct urb *urb) 353 { 354 int result; 355 struct usb_serial_port *port = urb->context; 356 struct tty_struct *tty; 357 unsigned char *data = urb->transfer_buffer; 358 int status = urb->status; 359 // char *dbg_data; 360 361 dbg("%s - port %d", __FUNCTION__, port->number); 362 363 if (status) { 364 dbg("%s - port %d Read int status not zero: %d", 365 __FUNCTION__, port->number, status); 366 return; 367 } 368 369 tty = port->tty; 370 if (urb->actual_length) { 371 372 // BEGIN DEBUG 373 /* 374 dbg_data = kzalloc((3 * purb->actual_length + 10) * sizeof(char), GFP_KERNEL); 375 if (! dbg_data) { 376 return; 377 } 378 for (i = 0; i < purb->actual_length; i++) { 379 sprintf(dbg_data +3*i, "%02X ", data[i]); 380 } 381 dbg(" <-- %s", dbg_data ); 382 kfree(dbg_data); 383 */ 384 // END DEBUG 385 386 tty_buffer_request_room(tty, urb->actual_length); 387 tty_insert_flip_string(tty, data, urb->actual_length); 388 tty_flip_buffer_push(tty); 389 } 390 391 // someone sets the dev to 0 if the close method has been called 392 port->interrupt_in_urb->dev = port->serial->dev; 393 394 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); 395 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); 396 } 397 398 399 static void kobil_write_callback( struct urb *purb ) 400 { 401 } 402 403 404 static int kobil_write (struct usb_serial_port *port, 405 const unsigned char *buf, int count) 406 { 407 int length = 0; 408 int result = 0; 409 int todo = 0; 410 struct kobil_private * priv; 411 412 if (count == 0) { 413 dbg("%s - port %d write request of 0 bytes", __FUNCTION__, port->number); 414 return 0; 415 } 416 417 priv = usb_get_serial_port_data(port); 418 419 if (count > (KOBIL_BUF_LENGTH - priv->filled)) { 420 dbg("%s - port %d Error: write request bigger than buffer size", __FUNCTION__, port->number); 421 return -ENOMEM; 422 } 423 424 // Copy data to buffer 425 memcpy (priv->buf + priv->filled, buf, count); 426 427 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, priv->buf + priv->filled); 428 429 priv->filled = priv->filled + count; 430 431 432 // only send complete block. TWIN, KAAN SIM and adapter K use the same protocol. 433 if ( ((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) || 434 ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4))) ) { 435 436 // stop reading (except TWIN and KAAN SIM) 437 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) 438 usb_kill_urb(port->interrupt_in_urb); 439 440 todo = priv->filled - priv->cur_pos; 441 442 while(todo > 0) { 443 // max 8 byte in one urb (endpoint size) 444 length = (todo < 8) ? todo : 8; 445 // copy data to transfer buffer 446 memcpy(port->write_urb->transfer_buffer, priv->buf + priv->cur_pos, length ); 447 usb_fill_int_urb( port->write_urb, 448 port->serial->dev, 449 usb_sndintpipe(port->serial->dev, priv->write_int_endpoint_address), 450 port->write_urb->transfer_buffer, 451 length, 452 kobil_write_callback, 453 port, 454 8 455 ); 456 457 priv->cur_pos = priv->cur_pos + length; 458 result = usb_submit_urb( port->write_urb, GFP_NOIO ); 459 dbg("%s - port %d Send write URB returns: %i", __FUNCTION__, port->number, result); 460 todo = priv->filled - priv->cur_pos; 461 462 if (todo > 0) { 463 msleep(24); 464 } 465 466 } // end while 467 468 priv->filled = 0; 469 priv->cur_pos = 0; 470 471 // someone sets the dev to 0 if the close method has been called 472 port->interrupt_in_urb->dev = port->serial->dev; 473 474 // start reading (except TWIN and KAAN SIM) 475 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) { 476 // someone sets the dev to 0 if the close method has been called 477 port->interrupt_in_urb->dev = port->serial->dev; 478 479 result = usb_submit_urb( port->interrupt_in_urb, GFP_NOIO ); 480 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); 481 } 482 } 483 return count; 484 } 485 486 487 static int kobil_write_room (struct usb_serial_port *port) 488 { 489 //dbg("%s - port %d", __FUNCTION__, port->number); 490 return 8; 491 } 492 493 494 static int kobil_tiocmget(struct usb_serial_port *port, struct file *file) 495 { 496 struct kobil_private * priv; 497 int result; 498 unsigned char *transfer_buffer; 499 int transfer_buffer_length = 8; 500 501 priv = usb_get_serial_port_data(port); 502 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) { 503 // This device doesn't support ioctl calls 504 return -EINVAL; 505 } 506 507 // allocate memory for transfer buffer 508 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 509 if (!transfer_buffer) { 510 return -ENOMEM; 511 } 512 513 result = usb_control_msg( port->serial->dev, 514 usb_rcvctrlpipe(port->serial->dev, 0 ), 515 SUSBCRequest_GetStatusLineState, 516 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 517 0, 518 0, 519 transfer_buffer, 520 transfer_buffer_length, 521 KOBIL_TIMEOUT); 522 523 dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x", 524 __FUNCTION__, port->number, result, transfer_buffer[0]); 525 526 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) { 527 priv->line_state |= TIOCM_DSR; 528 } else { 529 priv->line_state &= ~TIOCM_DSR; 530 } 531 532 kfree(transfer_buffer); 533 return priv->line_state; 534 } 535 536 static int kobil_tiocmset(struct usb_serial_port *port, struct file *file, 537 unsigned int set, unsigned int clear) 538 { 539 struct kobil_private * priv; 540 int result; 541 int dtr = 0; 542 int rts = 0; 543 unsigned char *transfer_buffer; 544 int transfer_buffer_length = 8; 545 546 priv = usb_get_serial_port_data(port); 547 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) { 548 // This device doesn't support ioctl calls 549 return -EINVAL; 550 } 551 552 // allocate memory for transfer buffer 553 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 554 if (! transfer_buffer) { 555 return -ENOMEM; 556 } 557 558 if (set & TIOCM_RTS) 559 rts = 1; 560 if (set & TIOCM_DTR) 561 dtr = 1; 562 if (clear & TIOCM_RTS) 563 rts = 0; 564 if (clear & TIOCM_DTR) 565 dtr = 0; 566 567 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) { 568 if (dtr != 0) 569 dbg("%s - port %d Setting DTR", __FUNCTION__, port->number); 570 else 571 dbg("%s - port %d Clearing DTR", __FUNCTION__, port->number); 572 result = usb_control_msg( port->serial->dev, 573 usb_rcvctrlpipe(port->serial->dev, 0 ), 574 SUSBCRequest_SetStatusLinesOrQueues, 575 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 576 ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR), 577 0, 578 transfer_buffer, 579 0, 580 KOBIL_TIMEOUT); 581 } else { 582 if (rts != 0) 583 dbg("%s - port %d Setting RTS", __FUNCTION__, port->number); 584 else 585 dbg("%s - port %d Clearing RTS", __FUNCTION__, 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 ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS), 591 0, 592 transfer_buffer, 593 0, 594 KOBIL_TIMEOUT); 595 } 596 dbg("%s - port %d Send set_status_line URB returns: %i", __FUNCTION__, port->number, result); 597 kfree(transfer_buffer); 598 return (result < 0) ? result : 0; 599 } 600 601 static void kobil_set_termios(struct usb_serial_port *port, struct ktermios *old) 602 { 603 struct kobil_private * priv; 604 int result; 605 unsigned short urb_val = 0; 606 int c_cflag = port->tty->termios->c_cflag; 607 speed_t speed; 608 void * settings; 609 610 priv = usb_get_serial_port_data(port); 611 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) 612 // This device doesn't support ioctl calls 613 return; 614 615 switch (speed = tty_get_baud_rate(port->tty)) { 616 case 1200: 617 urb_val = SUSBCR_SBR_1200; 618 break; 619 case 9600: 620 default: 621 urb_val = SUSBCR_SBR_9600; 622 break; 623 } 624 urb_val |= (c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits : SUSBCR_SPASB_1StopBit; 625 626 settings = kzalloc(50, GFP_KERNEL); 627 if (! settings) 628 return; 629 630 sprintf(settings, "%d ", speed); 631 632 if (c_cflag & PARENB) { 633 if (c_cflag & PARODD) { 634 urb_val |= SUSBCR_SPASB_OddParity; 635 strcat(settings, "Odd Parity"); 636 } else { 637 urb_val |= SUSBCR_SPASB_EvenParity; 638 strcat(settings, "Even Parity"); 639 } 640 } else { 641 urb_val |= SUSBCR_SPASB_NoParity; 642 strcat(settings, "No Parity"); 643 } 644 645 result = usb_control_msg( port->serial->dev, 646 usb_rcvctrlpipe(port->serial->dev, 0 ), 647 SUSBCRequest_SetBaudRateParityAndStopBits, 648 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 649 urb_val, 650 0, 651 settings, 652 0, 653 KOBIL_TIMEOUT 654 ); 655 kfree(settings); 656 } 657 658 static int kobil_ioctl(struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg) 659 { 660 struct kobil_private * priv = usb_get_serial_port_data(port); 661 unsigned char *transfer_buffer; 662 int transfer_buffer_length = 8; 663 int result; 664 665 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) 666 // This device doesn't support ioctl calls 667 return 0; 668 669 switch (cmd) { 670 case TCFLSH: // 0x540B 671 transfer_buffer = kmalloc(transfer_buffer_length, GFP_KERNEL); 672 if (! transfer_buffer) 673 return -ENOBUFS; 674 675 result = usb_control_msg( port->serial->dev, 676 usb_rcvctrlpipe(port->serial->dev, 0 ), 677 SUSBCRequest_Misc, 678 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 679 SUSBCR_MSC_ResetAllQueues, 680 0, 681 NULL,//transfer_buffer, 682 0, 683 KOBIL_TIMEOUT 684 ); 685 686 dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __FUNCTION__, port->number, result); 687 kfree(transfer_buffer); 688 return (result < 0) ? -EFAULT : 0; 689 default: 690 return -ENOIOCTLCMD; 691 } 692 } 693 694 static int __init kobil_init (void) 695 { 696 int retval; 697 retval = usb_serial_register(&kobil_device); 698 if (retval) 699 goto failed_usb_serial_register; 700 retval = usb_register(&kobil_driver); 701 if (retval) 702 goto failed_usb_register; 703 704 info(DRIVER_VERSION " " DRIVER_AUTHOR); 705 info(DRIVER_DESC); 706 707 return 0; 708 failed_usb_register: 709 usb_serial_deregister(&kobil_device); 710 failed_usb_serial_register: 711 return retval; 712 } 713 714 715 static void __exit kobil_exit (void) 716 { 717 usb_deregister (&kobil_driver); 718 usb_serial_deregister (&kobil_device); 719 } 720 721 module_init(kobil_init); 722 module_exit(kobil_exit); 723 724 MODULE_AUTHOR( DRIVER_AUTHOR ); 725 MODULE_DESCRIPTION( DRIVER_DESC ); 726 MODULE_LICENSE( "GPL" ); 727 728 module_param(debug, bool, S_IRUGO | S_IWUSR); 729 MODULE_PARM_DESC(debug, "Debug enabled or not"); 730