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_shutdown(struct usb_serial *serial); 73 static int kobil_open(struct tty_struct *tty, 74 struct usb_serial_port *port, struct file *filp); 75 static void kobil_close(struct tty_struct *tty, struct usb_serial_port *port, 76 struct file *filp); 77 static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port, 78 const unsigned char *buf, int count); 79 static int kobil_write_room(struct tty_struct *tty); 80 static int kobil_ioctl(struct tty_struct *tty, struct file *file, 81 unsigned int cmd, unsigned long arg); 82 static int kobil_tiocmget(struct tty_struct *tty, struct file *file); 83 static int kobil_tiocmset(struct tty_struct *tty, struct file *file, 84 unsigned int set, unsigned int clear); 85 static void kobil_read_int_callback(struct urb *urb); 86 static void kobil_write_callback(struct urb *purb); 87 static void kobil_set_termios(struct tty_struct *tty, 88 struct usb_serial_port *port, struct ktermios *old); 89 90 91 static struct usb_device_id id_table [] = { 92 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) }, 93 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_K_PRODUCT_ID) }, 94 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_USBTWIN_PRODUCT_ID) }, 95 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_KAAN_SIM_PRODUCT_ID) }, 96 { } /* Terminating entry */ 97 }; 98 99 100 MODULE_DEVICE_TABLE(usb, id_table); 101 102 static struct usb_driver kobil_driver = { 103 .name = "kobil", 104 .probe = usb_serial_probe, 105 .disconnect = usb_serial_disconnect, 106 .id_table = id_table, 107 .no_dynamic_id = 1, 108 }; 109 110 111 static struct usb_serial_driver kobil_device = { 112 .driver = { 113 .owner = THIS_MODULE, 114 .name = "kobil", 115 }, 116 .description = "KOBIL USB smart card terminal", 117 .usb_driver = &kobil_driver, 118 .id_table = id_table, 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 }; 142 143 144 static 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 priv->filled = 0; 159 priv->cur_pos = 0; 160 priv->device_type = le16_to_cpu(serial->dev->descriptor.idProduct); 161 162 switch (priv->device_type) { 163 case KOBIL_ADAPTER_B_PRODUCT_ID: 164 printk(KERN_DEBUG "KOBIL B1 PRO / KAAN PRO detected\n"); 165 break; 166 case KOBIL_ADAPTER_K_PRODUCT_ID: 167 printk(KERN_DEBUG 168 "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n"); 169 break; 170 case KOBIL_USBTWIN_PRODUCT_ID: 171 printk(KERN_DEBUG "KOBIL USBTWIN detected\n"); 172 break; 173 case KOBIL_KAAN_SIM_PRODUCT_ID: 174 printk(KERN_DEBUG "KOBIL KAAN SIM detected\n"); 175 break; 176 } 177 usb_set_serial_port_data(serial->port[0], priv); 178 179 /* search for the necessary endpoints */ 180 pdev = serial->dev; 181 actconfig = pdev->actconfig; 182 interface = actconfig->interface[0]; 183 altsetting = interface->cur_altsetting; 184 endpoint = altsetting->endpoint; 185 186 for (i = 0; i < altsetting->desc.bNumEndpoints; i++) { 187 endpoint = &altsetting->endpoint[i]; 188 if (usb_endpoint_is_int_out(&endpoint->desc)) { 189 dbg("%s Found interrupt out endpoint. Address: %d", 190 __func__, endpoint->desc.bEndpointAddress); 191 priv->write_int_endpoint_address = 192 endpoint->desc.bEndpointAddress; 193 } 194 if (usb_endpoint_is_int_in(&endpoint->desc)) { 195 dbg("%s Found interrupt in endpoint. Address: %d", 196 __func__, endpoint->desc.bEndpointAddress); 197 priv->read_int_endpoint_address = 198 endpoint->desc.bEndpointAddress; 199 } 200 } 201 return 0; 202 } 203 204 205 static void kobil_shutdown(struct usb_serial *serial) 206 { 207 int i; 208 dbg("%s - port %d", __func__, serial->port[0]->number); 209 210 for (i = 0; i < serial->num_ports; ++i) { 211 while (serial->port[i]->port.count > 0) 212 kobil_close(NULL, serial->port[i], NULL); 213 kfree(usb_get_serial_port_data(serial->port[i])); 214 usb_set_serial_port_data(serial->port[i], NULL); 215 } 216 } 217 218 219 static int kobil_open(struct tty_struct *tty, 220 struct usb_serial_port *port, struct file *filp) 221 { 222 int result = 0; 223 struct kobil_private *priv; 224 unsigned char *transfer_buffer; 225 int transfer_buffer_length = 8; 226 int write_urb_transfer_buffer_length = 8; 227 228 dbg("%s - port %d", __func__, port->number); 229 priv = usb_get_serial_port_data(port); 230 231 /* someone sets the dev to 0 if the close method has been called */ 232 port->interrupt_in_urb->dev = port->serial->dev; 233 234 235 /* force low_latency on so that our tty_push actually forces 236 * the data through, otherwise it is scheduled, and with high 237 * data rates (like with OHCI) data can get lost. 238 */ 239 if (tty) { 240 tty->low_latency = 1; 241 242 /* Default to echo off and other sane device settings */ 243 tty->termios->c_lflag = 0; 244 tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | 245 XCASE); 246 tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF; 247 /* do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) */ 248 tty->termios->c_oflag &= ~ONLCR; 249 } 250 /* allocate memory for transfer buffer */ 251 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 252 if (!transfer_buffer) 253 return -ENOMEM; 254 255 /* allocate write_urb */ 256 if (!port->write_urb) { 257 dbg("%s - port %d Allocating port->write_urb", 258 __func__, port->number); 259 port->write_urb = usb_alloc_urb(0, GFP_KERNEL); 260 if (!port->write_urb) { 261 dbg("%s - port %d usb_alloc_urb failed", 262 __func__, port->number); 263 kfree(transfer_buffer); 264 return -ENOMEM; 265 } 266 } 267 268 /* allocate memory for write_urb transfer buffer */ 269 port->write_urb->transfer_buffer = 270 kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL); 271 if (!port->write_urb->transfer_buffer) { 272 kfree(transfer_buffer); 273 usb_free_urb(port->write_urb); 274 port->write_urb = NULL; 275 return -ENOMEM; 276 } 277 278 /* get hardware version */ 279 result = usb_control_msg(port->serial->dev, 280 usb_rcvctrlpipe(port->serial->dev, 0), 281 SUSBCRequest_GetMisc, 282 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 283 SUSBCR_MSC_GetHWVersion, 284 0, 285 transfer_buffer, 286 transfer_buffer_length, 287 KOBIL_TIMEOUT 288 ); 289 dbg("%s - port %d Send get_HW_version URB returns: %i", 290 __func__, port->number, result); 291 dbg("Harware version: %i.%i.%i", 292 transfer_buffer[0], transfer_buffer[1], transfer_buffer[2]); 293 294 /* get firmware version */ 295 result = usb_control_msg(port->serial->dev, 296 usb_rcvctrlpipe(port->serial->dev, 0), 297 SUSBCRequest_GetMisc, 298 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 299 SUSBCR_MSC_GetFWVersion, 300 0, 301 transfer_buffer, 302 transfer_buffer_length, 303 KOBIL_TIMEOUT 304 ); 305 dbg("%s - port %d Send get_FW_version URB returns: %i", 306 __func__, port->number, result); 307 dbg("Firmware version: %i.%i.%i", 308 transfer_buffer[0], transfer_buffer[1], transfer_buffer[2]); 309 310 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 311 priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) { 312 /* Setting Baudrate, Parity and Stopbits */ 313 result = usb_control_msg(port->serial->dev, 314 usb_rcvctrlpipe(port->serial->dev, 0), 315 SUSBCRequest_SetBaudRateParityAndStopBits, 316 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 317 SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity | 318 SUSBCR_SPASB_1StopBit, 319 0, 320 transfer_buffer, 321 0, 322 KOBIL_TIMEOUT 323 ); 324 dbg("%s - port %d Send set_baudrate URB returns: %i", 325 __func__, port->number, result); 326 327 /* reset all queues */ 328 result = usb_control_msg(port->serial->dev, 329 usb_rcvctrlpipe(port->serial->dev, 0), 330 SUSBCRequest_Misc, 331 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 332 SUSBCR_MSC_ResetAllQueues, 333 0, 334 transfer_buffer, 335 0, 336 KOBIL_TIMEOUT 337 ); 338 dbg("%s - port %d Send reset_all_queues URB returns: %i", 339 __func__, port->number, result); 340 } 341 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || 342 priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 343 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 344 /* start reading (Adapter B 'cause PNP string) */ 345 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); 346 dbg("%s - port %d Send read URB returns: %i", 347 __func__, port->number, result); 348 } 349 350 kfree(transfer_buffer); 351 return 0; 352 } 353 354 355 static void kobil_close(struct tty_struct *tty, 356 struct usb_serial_port *port, struct file *filp) 357 { 358 dbg("%s - port %d", __func__, port->number); 359 360 if (port->write_urb) { 361 usb_kill_urb(port->write_urb); 362 usb_free_urb(port->write_urb); 363 port->write_urb = NULL; 364 } 365 usb_kill_urb(port->interrupt_in_urb); 366 } 367 368 369 static void kobil_read_int_callback(struct urb *urb) 370 { 371 int result; 372 struct usb_serial_port *port = urb->context; 373 struct tty_struct *tty; 374 unsigned char *data = urb->transfer_buffer; 375 int status = urb->status; 376 /* char *dbg_data; */ 377 378 dbg("%s - port %d", __func__, port->number); 379 380 if (status) { 381 dbg("%s - port %d Read int status not zero: %d", 382 __func__, port->number, status); 383 return; 384 } 385 386 tty = port->port.tty; 387 if (urb->actual_length) { 388 389 /* BEGIN DEBUG */ 390 /* 391 dbg_data = kzalloc((3 * purb->actual_length + 10) 392 * sizeof(char), GFP_KERNEL); 393 if (! dbg_data) { 394 return; 395 } 396 for (i = 0; i < purb->actual_length; i++) { 397 sprintf(dbg_data +3*i, "%02X ", data[i]); 398 } 399 dbg(" <-- %s", dbg_data); 400 kfree(dbg_data); 401 */ 402 /* END DEBUG */ 403 404 tty_buffer_request_room(tty, urb->actual_length); 405 tty_insert_flip_string(tty, data, urb->actual_length); 406 tty_flip_buffer_push(tty); 407 } 408 /* someone sets the dev to 0 if the close method has been called */ 409 port->interrupt_in_urb->dev = port->serial->dev; 410 411 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); 412 dbg("%s - port %d Send read URB returns: %i", 413 __func__, port->number, result); 414 } 415 416 417 static void kobil_write_callback(struct urb *purb) 418 { 419 } 420 421 422 static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port, 423 const unsigned char *buf, int count) 424 { 425 int length = 0; 426 int result = 0; 427 int todo = 0; 428 struct kobil_private *priv; 429 430 if (count == 0) { 431 dbg("%s - port %d write request of 0 bytes", 432 __func__, port->number); 433 return 0; 434 } 435 436 priv = usb_get_serial_port_data(port); 437 438 if (count > (KOBIL_BUF_LENGTH - priv->filled)) { 439 dbg("%s - port %d Error: write request bigger than buffer size", __func__, port->number); 440 return -ENOMEM; 441 } 442 443 /* Copy data to buffer */ 444 memcpy(priv->buf + priv->filled, buf, count); 445 usb_serial_debug_data(debug, &port->dev, __func__, count, 446 priv->buf + priv->filled); 447 priv->filled = priv->filled + count; 448 449 /* only send complete block. TWIN, KAAN SIM and adapter K 450 use the same protocol. */ 451 if (((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) || 452 ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4)))) { 453 /* stop reading (except TWIN and KAAN SIM) */ 454 if ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) 455 || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID)) 456 usb_kill_urb(port->interrupt_in_urb); 457 458 todo = priv->filled - priv->cur_pos; 459 460 while (todo > 0) { 461 /* max 8 byte in one urb (endpoint size) */ 462 length = (todo < 8) ? todo : 8; 463 /* copy data to transfer buffer */ 464 memcpy(port->write_urb->transfer_buffer, 465 priv->buf + priv->cur_pos, length); 466 usb_fill_int_urb(port->write_urb, 467 port->serial->dev, 468 usb_sndintpipe(port->serial->dev, 469 priv->write_int_endpoint_address), 470 port->write_urb->transfer_buffer, 471 length, 472 kobil_write_callback, 473 port, 474 8 475 ); 476 477 priv->cur_pos = priv->cur_pos + length; 478 result = usb_submit_urb(port->write_urb, GFP_NOIO); 479 dbg("%s - port %d Send write URB returns: %i", 480 __func__, port->number, result); 481 todo = priv->filled - priv->cur_pos; 482 483 if (todo > 0) 484 msleep(24); 485 } 486 487 priv->filled = 0; 488 priv->cur_pos = 0; 489 490 /* someone sets the dev to 0 if the close method 491 has been called */ 492 port->interrupt_in_urb->dev = port->serial->dev; 493 494 /* start reading (except TWIN and KAAN SIM) */ 495 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 496 priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) { 497 /* someone sets the dev to 0 if the close method has 498 been called */ 499 port->interrupt_in_urb->dev = port->serial->dev; 500 501 result = usb_submit_urb(port->interrupt_in_urb, 502 GFP_NOIO); 503 dbg("%s - port %d Send read URB returns: %i", 504 __func__, port->number, result); 505 } 506 } 507 return count; 508 } 509 510 511 static int kobil_write_room(struct tty_struct *tty) 512 { 513 /* dbg("%s - port %d", __func__, port->number); */ 514 /* FIXME */ 515 return 8; 516 } 517 518 519 static int kobil_tiocmget(struct tty_struct *tty, struct file *file) 520 { 521 struct usb_serial_port *port = tty->driver_data; 522 struct kobil_private *priv; 523 int result; 524 unsigned char *transfer_buffer; 525 int transfer_buffer_length = 8; 526 527 priv = usb_get_serial_port_data(port); 528 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID 529 || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 530 /* This device doesn't support ioctl calls */ 531 return -EINVAL; 532 } 533 534 /* allocate memory for transfer buffer */ 535 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 536 if (!transfer_buffer) 537 return -ENOMEM; 538 539 result = usb_control_msg(port->serial->dev, 540 usb_rcvctrlpipe(port->serial->dev, 0), 541 SUSBCRequest_GetStatusLineState, 542 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 543 0, 544 0, 545 transfer_buffer, 546 transfer_buffer_length, 547 KOBIL_TIMEOUT); 548 549 dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x", 550 __func__, port->number, result, transfer_buffer[0]); 551 552 result = 0; 553 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) 554 result = TIOCM_DSR; 555 kfree(transfer_buffer); 556 return result; 557 } 558 559 static int kobil_tiocmset(struct tty_struct *tty, struct file *file, 560 unsigned int set, unsigned int clear) 561 { 562 struct usb_serial_port *port = tty->driver_data; 563 struct kobil_private *priv; 564 int result; 565 int dtr = 0; 566 int rts = 0; 567 unsigned char *transfer_buffer; 568 int transfer_buffer_length = 8; 569 570 /* FIXME: locking ? */ 571 priv = usb_get_serial_port_data(port); 572 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID 573 || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 574 /* This device doesn't support ioctl calls */ 575 return -EINVAL; 576 } 577 578 /* allocate memory for transfer buffer */ 579 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 580 if (!transfer_buffer) 581 return -ENOMEM; 582 583 if (set & TIOCM_RTS) 584 rts = 1; 585 if (set & TIOCM_DTR) 586 dtr = 1; 587 if (clear & TIOCM_RTS) 588 rts = 0; 589 if (clear & TIOCM_DTR) 590 dtr = 0; 591 592 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) { 593 if (dtr != 0) 594 dbg("%s - port %d Setting DTR", 595 __func__, port->number); 596 else 597 dbg("%s - port %d Clearing DTR", 598 __func__, port->number); 599 result = usb_control_msg(port->serial->dev, 600 usb_rcvctrlpipe(port->serial->dev, 0), 601 SUSBCRequest_SetStatusLinesOrQueues, 602 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 603 ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR), 604 0, 605 transfer_buffer, 606 0, 607 KOBIL_TIMEOUT); 608 } else { 609 if (rts != 0) 610 dbg("%s - port %d Setting RTS", 611 __func__, port->number); 612 else 613 dbg("%s - port %d Clearing RTS", 614 __func__, port->number); 615 result = usb_control_msg(port->serial->dev, 616 usb_rcvctrlpipe(port->serial->dev, 0), 617 SUSBCRequest_SetStatusLinesOrQueues, 618 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 619 ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS), 620 0, 621 transfer_buffer, 622 0, 623 KOBIL_TIMEOUT); 624 } 625 dbg("%s - port %d Send set_status_line URB returns: %i", 626 __func__, port->number, result); 627 kfree(transfer_buffer); 628 return (result < 0) ? result : 0; 629 } 630 631 static void kobil_set_termios(struct tty_struct *tty, 632 struct usb_serial_port *port, struct ktermios *old) 633 { 634 struct kobil_private *priv; 635 int result; 636 unsigned short urb_val = 0; 637 int c_cflag = tty->termios->c_cflag; 638 speed_t speed; 639 void *settings; 640 641 priv = usb_get_serial_port_data(port); 642 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || 643 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 644 /* This device doesn't support ioctl calls */ 645 *tty->termios = *old; 646 return; 647 } 648 649 speed = tty_get_baud_rate(tty); 650 switch (speed) { 651 case 1200: 652 urb_val = SUSBCR_SBR_1200; 653 break; 654 default: 655 speed = 9600; 656 case 9600: 657 urb_val = SUSBCR_SBR_9600; 658 break; 659 } 660 urb_val |= (c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits : 661 SUSBCR_SPASB_1StopBit; 662 663 settings = kzalloc(50, GFP_KERNEL); 664 if (!settings) 665 return; 666 667 sprintf(settings, "%d ", speed); 668 669 if (c_cflag & PARENB) { 670 if (c_cflag & PARODD) { 671 urb_val |= SUSBCR_SPASB_OddParity; 672 strcat(settings, "Odd Parity"); 673 } else { 674 urb_val |= SUSBCR_SPASB_EvenParity; 675 strcat(settings, "Even Parity"); 676 } 677 } else { 678 urb_val |= SUSBCR_SPASB_NoParity; 679 strcat(settings, "No Parity"); 680 } 681 tty->termios->c_cflag &= ~CMSPAR; 682 tty_encode_baud_rate(tty, speed, speed); 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 kfree(settings); 695 } 696 697 static int kobil_ioctl(struct tty_struct *tty, struct file *file, 698 unsigned int cmd, unsigned long arg) 699 { 700 struct usb_serial_port *port = tty->driver_data; 701 struct kobil_private *priv = usb_get_serial_port_data(port); 702 unsigned char *transfer_buffer; 703 int transfer_buffer_length = 8; 704 int result; 705 706 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || 707 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) 708 /* This device doesn't support ioctl calls */ 709 return -ENOIOCTLCMD; 710 711 switch (cmd) { 712 case TCFLSH: 713 transfer_buffer = kmalloc(transfer_buffer_length, GFP_KERNEL); 714 if (!transfer_buffer) 715 return -ENOBUFS; 716 717 result = usb_control_msg(port->serial->dev, 718 usb_rcvctrlpipe(port->serial->dev, 0), 719 SUSBCRequest_Misc, 720 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 721 SUSBCR_MSC_ResetAllQueues, 722 0, 723 NULL, /* transfer_buffer, */ 724 0, 725 KOBIL_TIMEOUT 726 ); 727 728 dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __func__, port->number, result); 729 kfree(transfer_buffer); 730 return (result < 0) ? -EIO: 0; 731 default: 732 return -ENOIOCTLCMD; 733 } 734 } 735 736 static int __init kobil_init(void) 737 { 738 int retval; 739 retval = usb_serial_register(&kobil_device); 740 if (retval) 741 goto failed_usb_serial_register; 742 retval = usb_register(&kobil_driver); 743 if (retval) 744 goto failed_usb_register; 745 746 info(DRIVER_VERSION " " DRIVER_AUTHOR); 747 info(DRIVER_DESC); 748 749 return 0; 750 failed_usb_register: 751 usb_serial_deregister(&kobil_device); 752 failed_usb_serial_register: 753 return retval; 754 } 755 756 757 static void __exit kobil_exit(void) 758 { 759 usb_deregister(&kobil_driver); 760 usb_serial_deregister(&kobil_device); 761 } 762 763 module_init(kobil_init); 764 module_exit(kobil_exit); 765 766 MODULE_AUTHOR(DRIVER_AUTHOR); 767 MODULE_DESCRIPTION(DRIVER_DESC); 768 MODULE_LICENSE("GPL"); 769 770 module_param(debug, bool, S_IRUGO | S_IWUSR); 771 MODULE_PARM_DESC(debug, "Debug enabled or not"); 772