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 usb_serial_port *port); 76 static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port, 77 const unsigned char *buf, int count); 78 static int kobil_write_room(struct tty_struct *tty); 79 static int kobil_ioctl(struct tty_struct *tty, struct file *file, 80 unsigned int cmd, unsigned long arg); 81 static int kobil_tiocmget(struct tty_struct *tty, struct file *file); 82 static int kobil_tiocmset(struct tty_struct *tty, struct file *file, 83 unsigned int set, unsigned int clear); 84 static void kobil_read_int_callback(struct urb *urb); 85 static void kobil_write_callback(struct urb *purb); 86 static void kobil_set_termios(struct tty_struct *tty, 87 struct usb_serial_port *port, struct ktermios *old); 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 static struct usb_driver kobil_driver = { 102 .name = "kobil", 103 .probe = usb_serial_probe, 104 .disconnect = usb_serial_disconnect, 105 .id_table = id_table, 106 .no_dynamic_id = 1, 107 }; 108 109 110 static struct usb_serial_driver kobil_device = { 111 .driver = { 112 .owner = THIS_MODULE, 113 .name = "kobil", 114 }, 115 .description = "KOBIL USB smart card terminal", 116 .usb_driver = &kobil_driver, 117 .id_table = id_table, 118 .num_ports = 1, 119 .attach = kobil_startup, 120 .shutdown = kobil_shutdown, 121 .ioctl = kobil_ioctl, 122 .set_termios = kobil_set_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_shutdown(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 while (serial->port[i]->port.count > 0) 211 kobil_close(serial->port[i]); 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 tty_struct *tty, 219 struct usb_serial_port *port, struct file *filp) 220 { 221 int result = 0; 222 struct kobil_private *priv; 223 unsigned char *transfer_buffer; 224 int transfer_buffer_length = 8; 225 int write_urb_transfer_buffer_length = 8; 226 227 dbg("%s - port %d", __func__, port->number); 228 priv = usb_get_serial_port_data(port); 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 if (tty) { 234 235 /* Default to echo off and other sane device settings */ 236 tty->termios->c_lflag = 0; 237 tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | 238 XCASE); 239 tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF; 240 /* do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) */ 241 tty->termios->c_oflag &= ~ONLCR; 242 } 243 /* allocate memory for transfer buffer */ 244 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 245 if (!transfer_buffer) 246 return -ENOMEM; 247 248 /* allocate write_urb */ 249 if (!port->write_urb) { 250 dbg("%s - port %d Allocating port->write_urb", 251 __func__, port->number); 252 port->write_urb = usb_alloc_urb(0, GFP_KERNEL); 253 if (!port->write_urb) { 254 dbg("%s - port %d usb_alloc_urb failed", 255 __func__, port->number); 256 kfree(transfer_buffer); 257 return -ENOMEM; 258 } 259 } 260 261 /* allocate memory for write_urb transfer buffer */ 262 port->write_urb->transfer_buffer = 263 kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL); 264 if (!port->write_urb->transfer_buffer) { 265 kfree(transfer_buffer); 266 usb_free_urb(port->write_urb); 267 port->write_urb = NULL; 268 return -ENOMEM; 269 } 270 271 /* get hardware version */ 272 result = usb_control_msg(port->serial->dev, 273 usb_rcvctrlpipe(port->serial->dev, 0), 274 SUSBCRequest_GetMisc, 275 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 276 SUSBCR_MSC_GetHWVersion, 277 0, 278 transfer_buffer, 279 transfer_buffer_length, 280 KOBIL_TIMEOUT 281 ); 282 dbg("%s - port %d Send get_HW_version URB returns: %i", 283 __func__, port->number, result); 284 dbg("Harware version: %i.%i.%i", 285 transfer_buffer[0], transfer_buffer[1], transfer_buffer[2]); 286 287 /* get firmware version */ 288 result = usb_control_msg(port->serial->dev, 289 usb_rcvctrlpipe(port->serial->dev, 0), 290 SUSBCRequest_GetMisc, 291 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 292 SUSBCR_MSC_GetFWVersion, 293 0, 294 transfer_buffer, 295 transfer_buffer_length, 296 KOBIL_TIMEOUT 297 ); 298 dbg("%s - port %d Send get_FW_version URB returns: %i", 299 __func__, port->number, result); 300 dbg("Firmware version: %i.%i.%i", 301 transfer_buffer[0], transfer_buffer[1], transfer_buffer[2]); 302 303 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 304 priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) { 305 /* Setting Baudrate, Parity and Stopbits */ 306 result = usb_control_msg(port->serial->dev, 307 usb_rcvctrlpipe(port->serial->dev, 0), 308 SUSBCRequest_SetBaudRateParityAndStopBits, 309 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 310 SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity | 311 SUSBCR_SPASB_1StopBit, 312 0, 313 transfer_buffer, 314 0, 315 KOBIL_TIMEOUT 316 ); 317 dbg("%s - port %d Send set_baudrate URB returns: %i", 318 __func__, port->number, result); 319 320 /* reset all queues */ 321 result = usb_control_msg(port->serial->dev, 322 usb_rcvctrlpipe(port->serial->dev, 0), 323 SUSBCRequest_Misc, 324 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 325 SUSBCR_MSC_ResetAllQueues, 326 0, 327 transfer_buffer, 328 0, 329 KOBIL_TIMEOUT 330 ); 331 dbg("%s - port %d Send reset_all_queues URB returns: %i", 332 __func__, port->number, result); 333 } 334 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || 335 priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 336 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 337 /* start reading (Adapter B 'cause PNP string) */ 338 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); 339 dbg("%s - port %d Send read URB returns: %i", 340 __func__, port->number, result); 341 } 342 343 kfree(transfer_buffer); 344 return 0; 345 } 346 347 348 static void kobil_close(struct usb_serial_port *port) 349 { 350 dbg("%s - port %d", __func__, port->number); 351 352 /* FIXME: Add rts/dtr methods */ 353 if (port->write_urb) { 354 usb_kill_urb(port->write_urb); 355 usb_free_urb(port->write_urb); 356 port->write_urb = NULL; 357 } 358 usb_kill_urb(port->interrupt_in_urb); 359 } 360 361 362 static void kobil_read_int_callback(struct urb *urb) 363 { 364 int result; 365 struct usb_serial_port *port = urb->context; 366 struct tty_struct *tty; 367 unsigned char *data = urb->transfer_buffer; 368 int status = urb->status; 369 /* char *dbg_data; */ 370 371 dbg("%s - port %d", __func__, port->number); 372 373 if (status) { 374 dbg("%s - port %d Read int status not zero: %d", 375 __func__, port->number, status); 376 return; 377 } 378 379 tty = tty_port_tty_get(&port->port); 380 if (urb->actual_length) { 381 382 /* BEGIN DEBUG */ 383 /* 384 dbg_data = kzalloc((3 * purb->actual_length + 10) 385 * sizeof(char), GFP_KERNEL); 386 if (! dbg_data) { 387 return; 388 } 389 for (i = 0; i < purb->actual_length; i++) { 390 sprintf(dbg_data +3*i, "%02X ", data[i]); 391 } 392 dbg(" <-- %s", dbg_data); 393 kfree(dbg_data); 394 */ 395 /* END DEBUG */ 396 397 tty_buffer_request_room(tty, urb->actual_length); 398 tty_insert_flip_string(tty, data, urb->actual_length); 399 tty_flip_buffer_push(tty); 400 } 401 tty_kref_put(tty); 402 /* someone sets the dev to 0 if the close method has been called */ 403 port->interrupt_in_urb->dev = port->serial->dev; 404 405 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); 406 dbg("%s - port %d Send read URB returns: %i", 407 __func__, port->number, result); 408 } 409 410 411 static void kobil_write_callback(struct urb *purb) 412 { 413 } 414 415 416 static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port, 417 const unsigned char *buf, int count) 418 { 419 int length = 0; 420 int result = 0; 421 int todo = 0; 422 struct kobil_private *priv; 423 424 if (count == 0) { 425 dbg("%s - port %d write request of 0 bytes", 426 __func__, port->number); 427 return 0; 428 } 429 430 priv = usb_get_serial_port_data(port); 431 432 if (count > (KOBIL_BUF_LENGTH - priv->filled)) { 433 dbg("%s - port %d Error: write request bigger than buffer size", __func__, port->number); 434 return -ENOMEM; 435 } 436 437 /* Copy data to buffer */ 438 memcpy(priv->buf + priv->filled, buf, count); 439 usb_serial_debug_data(debug, &port->dev, __func__, count, 440 priv->buf + priv->filled); 441 priv->filled = priv->filled + count; 442 443 /* only send complete block. TWIN, KAAN SIM and adapter K 444 use the same protocol. */ 445 if (((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) || 446 ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4)))) { 447 /* stop reading (except TWIN and KAAN SIM) */ 448 if ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) 449 || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID)) 450 usb_kill_urb(port->interrupt_in_urb); 451 452 todo = priv->filled - priv->cur_pos; 453 454 while (todo > 0) { 455 /* max 8 byte in one urb (endpoint size) */ 456 length = (todo < 8) ? todo : 8; 457 /* copy data to transfer buffer */ 458 memcpy(port->write_urb->transfer_buffer, 459 priv->buf + priv->cur_pos, length); 460 usb_fill_int_urb(port->write_urb, 461 port->serial->dev, 462 usb_sndintpipe(port->serial->dev, 463 priv->write_int_endpoint_address), 464 port->write_urb->transfer_buffer, 465 length, 466 kobil_write_callback, 467 port, 468 8 469 ); 470 471 priv->cur_pos = priv->cur_pos + length; 472 result = usb_submit_urb(port->write_urb, GFP_NOIO); 473 dbg("%s - port %d Send write URB returns: %i", 474 __func__, port->number, result); 475 todo = priv->filled - priv->cur_pos; 476 477 if (todo > 0) 478 msleep(24); 479 } 480 481 priv->filled = 0; 482 priv->cur_pos = 0; 483 484 /* someone sets the dev to 0 if the close method 485 has been called */ 486 port->interrupt_in_urb->dev = port->serial->dev; 487 488 /* start reading (except TWIN and KAAN SIM) */ 489 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 490 priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) { 491 /* someone sets the dev to 0 if the close method has 492 been called */ 493 port->interrupt_in_urb->dev = port->serial->dev; 494 495 result = usb_submit_urb(port->interrupt_in_urb, 496 GFP_NOIO); 497 dbg("%s - port %d Send read URB returns: %i", 498 __func__, port->number, result); 499 } 500 } 501 return count; 502 } 503 504 505 static int kobil_write_room(struct tty_struct *tty) 506 { 507 /* dbg("%s - port %d", __func__, port->number); */ 508 /* FIXME */ 509 return 8; 510 } 511 512 513 static int kobil_tiocmget(struct tty_struct *tty, struct file *file) 514 { 515 struct usb_serial_port *port = tty->driver_data; 516 struct kobil_private *priv; 517 int result; 518 unsigned char *transfer_buffer; 519 int transfer_buffer_length = 8; 520 521 priv = usb_get_serial_port_data(port); 522 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID 523 || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 524 /* This device doesn't support ioctl calls */ 525 return -EINVAL; 526 } 527 528 /* allocate memory for transfer buffer */ 529 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 530 if (!transfer_buffer) 531 return -ENOMEM; 532 533 result = usb_control_msg(port->serial->dev, 534 usb_rcvctrlpipe(port->serial->dev, 0), 535 SUSBCRequest_GetStatusLineState, 536 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 537 0, 538 0, 539 transfer_buffer, 540 transfer_buffer_length, 541 KOBIL_TIMEOUT); 542 543 dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x", 544 __func__, port->number, result, transfer_buffer[0]); 545 546 result = 0; 547 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) 548 result = TIOCM_DSR; 549 kfree(transfer_buffer); 550 return result; 551 } 552 553 static int kobil_tiocmset(struct tty_struct *tty, struct file *file, 554 unsigned int set, unsigned int clear) 555 { 556 struct usb_serial_port *port = tty->driver_data; 557 struct kobil_private *priv; 558 int result; 559 int dtr = 0; 560 int rts = 0; 561 unsigned char *transfer_buffer; 562 int transfer_buffer_length = 8; 563 564 /* FIXME: locking ? */ 565 priv = usb_get_serial_port_data(port); 566 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID 567 || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 568 /* This device doesn't support ioctl calls */ 569 return -EINVAL; 570 } 571 572 /* allocate memory for transfer buffer */ 573 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 574 if (!transfer_buffer) 575 return -ENOMEM; 576 577 if (set & TIOCM_RTS) 578 rts = 1; 579 if (set & TIOCM_DTR) 580 dtr = 1; 581 if (clear & TIOCM_RTS) 582 rts = 0; 583 if (clear & TIOCM_DTR) 584 dtr = 0; 585 586 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) { 587 if (dtr != 0) 588 dbg("%s - port %d Setting DTR", 589 __func__, port->number); 590 else 591 dbg("%s - port %d Clearing DTR", 592 __func__, port->number); 593 result = usb_control_msg(port->serial->dev, 594 usb_rcvctrlpipe(port->serial->dev, 0), 595 SUSBCRequest_SetStatusLinesOrQueues, 596 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 597 ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR), 598 0, 599 transfer_buffer, 600 0, 601 KOBIL_TIMEOUT); 602 } else { 603 if (rts != 0) 604 dbg("%s - port %d Setting RTS", 605 __func__, port->number); 606 else 607 dbg("%s - port %d Clearing RTS", 608 __func__, port->number); 609 result = usb_control_msg(port->serial->dev, 610 usb_rcvctrlpipe(port->serial->dev, 0), 611 SUSBCRequest_SetStatusLinesOrQueues, 612 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 613 ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS), 614 0, 615 transfer_buffer, 616 0, 617 KOBIL_TIMEOUT); 618 } 619 dbg("%s - port %d Send set_status_line URB returns: %i", 620 __func__, port->number, result); 621 kfree(transfer_buffer); 622 return (result < 0) ? result : 0; 623 } 624 625 static void kobil_set_termios(struct tty_struct *tty, 626 struct usb_serial_port *port, struct ktermios *old) 627 { 628 struct kobil_private *priv; 629 int result; 630 unsigned short urb_val = 0; 631 int c_cflag = tty->termios->c_cflag; 632 speed_t speed; 633 void *settings; 634 635 priv = usb_get_serial_port_data(port); 636 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || 637 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 638 /* This device doesn't support ioctl calls */ 639 *tty->termios = *old; 640 return; 641 } 642 643 speed = tty_get_baud_rate(tty); 644 switch (speed) { 645 case 1200: 646 urb_val = SUSBCR_SBR_1200; 647 break; 648 default: 649 speed = 9600; 650 case 9600: 651 urb_val = SUSBCR_SBR_9600; 652 break; 653 } 654 urb_val |= (c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits : 655 SUSBCR_SPASB_1StopBit; 656 657 settings = kzalloc(50, GFP_KERNEL); 658 if (!settings) 659 return; 660 661 sprintf(settings, "%d ", speed); 662 663 if (c_cflag & PARENB) { 664 if (c_cflag & PARODD) { 665 urb_val |= SUSBCR_SPASB_OddParity; 666 strcat(settings, "Odd Parity"); 667 } else { 668 urb_val |= SUSBCR_SPASB_EvenParity; 669 strcat(settings, "Even Parity"); 670 } 671 } else { 672 urb_val |= SUSBCR_SPASB_NoParity; 673 strcat(settings, "No Parity"); 674 } 675 tty->termios->c_cflag &= ~CMSPAR; 676 tty_encode_baud_rate(tty, speed, speed); 677 678 result = usb_control_msg(port->serial->dev, 679 usb_rcvctrlpipe(port->serial->dev, 0), 680 SUSBCRequest_SetBaudRateParityAndStopBits, 681 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 682 urb_val, 683 0, 684 settings, 685 0, 686 KOBIL_TIMEOUT 687 ); 688 kfree(settings); 689 } 690 691 static int kobil_ioctl(struct tty_struct *tty, struct file *file, 692 unsigned int cmd, unsigned long arg) 693 { 694 struct usb_serial_port *port = tty->driver_data; 695 struct kobil_private *priv = usb_get_serial_port_data(port); 696 unsigned char *transfer_buffer; 697 int transfer_buffer_length = 8; 698 int result; 699 700 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || 701 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) 702 /* This device doesn't support ioctl calls */ 703 return -ENOIOCTLCMD; 704 705 switch (cmd) { 706 case TCFLSH: 707 transfer_buffer = kmalloc(transfer_buffer_length, GFP_KERNEL); 708 if (!transfer_buffer) 709 return -ENOBUFS; 710 711 result = usb_control_msg(port->serial->dev, 712 usb_rcvctrlpipe(port->serial->dev, 0), 713 SUSBCRequest_Misc, 714 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 715 SUSBCR_MSC_ResetAllQueues, 716 0, 717 NULL, /* transfer_buffer, */ 718 0, 719 KOBIL_TIMEOUT 720 ); 721 722 dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __func__, port->number, result); 723 kfree(transfer_buffer); 724 return (result < 0) ? -EIO: 0; 725 default: 726 return -ENOIOCTLCMD; 727 } 728 } 729 730 static int __init kobil_init(void) 731 { 732 int retval; 733 retval = usb_serial_register(&kobil_device); 734 if (retval) 735 goto failed_usb_serial_register; 736 retval = usb_register(&kobil_driver); 737 if (retval) 738 goto failed_usb_register; 739 740 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" 741 DRIVER_DESC "\n"); 742 743 return 0; 744 failed_usb_register: 745 usb_serial_deregister(&kobil_device); 746 failed_usb_serial_register: 747 return retval; 748 } 749 750 751 static void __exit kobil_exit(void) 752 { 753 usb_deregister(&kobil_driver); 754 usb_serial_deregister(&kobil_device); 755 } 756 757 module_init(kobil_init); 758 module_exit(kobil_exit); 759 760 MODULE_AUTHOR(DRIVER_AUTHOR); 761 MODULE_DESCRIPTION(DRIVER_DESC); 762 MODULE_LICENSE("GPL"); 763 764 module_param(debug, bool, S_IRUGO | S_IWUSR); 765 MODULE_PARM_DESC(debug, "Debug enabled or not"); 766