kobil_sct.c revision 18fcac353fdc7cd072b0d24c8667042e675a4c11
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/config.h> 39#include <linux/kernel.h> 40#include <linux/errno.h> 41#include <linux/init.h> 42#include <linux/slab.h> 43#include <linux/tty.h> 44#include <linux/tty_driver.h> 45#include <linux/tty_flip.h> 46#include <linux/module.h> 47#include <linux/spinlock.h> 48#include <asm/uaccess.h> 49#include <linux/usb.h> 50#include <linux/ioctl.h> 51#include "usb-serial.h" 52#include "kobil_sct.h" 53 54static int debug; 55 56/* Version Information */ 57#define DRIVER_VERSION "21/05/2004" 58#define DRIVER_AUTHOR "KOBIL Systems GmbH - http://www.kobil.com" 59#define DRIVER_DESC "KOBIL USB Smart Card Terminal Driver (experimental)" 60 61#define KOBIL_VENDOR_ID 0x0D46 62#define KOBIL_ADAPTER_B_PRODUCT_ID 0x2011 63#define KOBIL_ADAPTER_K_PRODUCT_ID 0x2012 64#define KOBIL_USBTWIN_PRODUCT_ID 0x0078 65#define KOBIL_KAAN_SIM_PRODUCT_ID 0x0081 66 67#define KOBIL_TIMEOUT 500 68#define KOBIL_BUF_LENGTH 300 69 70 71/* Function prototypes */ 72static int kobil_startup (struct usb_serial *serial); 73static void kobil_shutdown (struct usb_serial *serial); 74static int kobil_open (struct usb_serial_port *port, struct file *filp); 75static void kobil_close (struct usb_serial_port *port, struct file *filp); 76static int kobil_write (struct usb_serial_port *port, 77 const unsigned char *buf, int count); 78static int kobil_write_room(struct usb_serial_port *port); 79static int kobil_ioctl(struct usb_serial_port *port, struct file *file, 80 unsigned int cmd, unsigned long arg); 81static int kobil_tiocmget(struct usb_serial_port *port, struct file *file); 82static int kobil_tiocmset(struct usb_serial_port *port, struct file *file, 83 unsigned int set, unsigned int clear); 84static void kobil_read_int_callback( struct urb *urb, struct pt_regs *regs ); 85static void kobil_write_callback( struct urb *purb, struct pt_regs *regs ); 86 87 88static 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 97MODULE_DEVICE_TABLE (usb, id_table); 98 99static struct usb_driver kobil_driver = { 100 .owner = THIS_MODULE, 101 .name = "kobil", 102 .probe = usb_serial_probe, 103 .disconnect = usb_serial_disconnect, 104 .id_table = id_table, 105}; 106 107 108static struct usb_serial_driver kobil_device = { 109 .driver = { 110 .owner = THIS_MODULE, 111 }, 112 .name = "KOBIL USB smart card terminal", 113 .id_table = id_table, 114 .num_interrupt_in = NUM_DONT_CARE, 115 .num_bulk_in = 0, 116 .num_bulk_out = 0, 117 .num_ports = 1, 118 .attach = kobil_startup, 119 .shutdown = kobil_shutdown, 120 .ioctl = kobil_ioctl, 121 .tiocmget = kobil_tiocmget, 122 .tiocmset = kobil_tiocmset, 123 .open = kobil_open, 124 .close = kobil_close, 125 .write = kobil_write, 126 .write_room = kobil_write_room, 127 .read_int_callback = kobil_read_int_callback, 128}; 129 130 131struct kobil_private { 132 int write_int_endpoint_address; 133 int read_int_endpoint_address; 134 unsigned char buf[KOBIL_BUF_LENGTH]; // buffer for the APDU to send 135 int filled; // index of the last char in buf 136 int cur_pos; // index of the next char to send in buf 137 __u16 device_type; 138 int line_state; 139 struct termios internal_termios; 140}; 141 142 143static 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 } 157 158 priv->filled = 0; 159 priv->cur_pos = 0; 160 priv->device_type = le16_to_cpu(serial->dev->descriptor.idProduct); 161 priv->line_state = 0; 162 163 switch (priv->device_type){ 164 case KOBIL_ADAPTER_B_PRODUCT_ID: 165 printk(KERN_DEBUG "KOBIL B1 PRO / KAAN PRO detected\n"); 166 break; 167 case KOBIL_ADAPTER_K_PRODUCT_ID: 168 printk(KERN_DEBUG "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 (((endpoint->desc.bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) && 189 ((endpoint->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) { 190 dbg("%s Found interrupt out endpoint. Address: %d", __FUNCTION__, endpoint->desc.bEndpointAddress); 191 priv->write_int_endpoint_address = endpoint->desc.bEndpointAddress; 192 } 193 if (((endpoint->desc.bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) && 194 ((endpoint->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) { 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 203static 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 218static int kobil_open (struct usb_serial_port *port, struct file *filp) 219{ 220 int i, 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 // set up internal termios structure 247 priv->internal_termios.c_iflag = port->tty->termios->c_iflag; 248 priv->internal_termios.c_oflag = port->tty->termios->c_oflag; 249 priv->internal_termios.c_cflag = port->tty->termios->c_cflag; 250 priv->internal_termios.c_lflag = port->tty->termios->c_lflag; 251 252 for (i=0; i<NCCS; i++) { 253 priv->internal_termios.c_cc[i] = port->tty->termios->c_cc[i]; 254 } 255 256 // allocate memory for transfer buffer 257 transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL); 258 if (! transfer_buffer) { 259 return -ENOMEM; 260 } else { 261 memset(transfer_buffer, 0, transfer_buffer_length); 262 } 263 264 // allocate write_urb 265 if (!port->write_urb) { 266 dbg("%s - port %d Allocating port->write_urb", __FUNCTION__, port->number); 267 port->write_urb = usb_alloc_urb(0, GFP_KERNEL); 268 if (!port->write_urb) { 269 dbg("%s - port %d usb_alloc_urb failed", __FUNCTION__, port->number); 270 kfree(transfer_buffer); 271 return -ENOMEM; 272 } 273 } 274 275 // allocate memory for write_urb transfer buffer 276 port->write_urb->transfer_buffer = (unsigned char *) kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL); 277 if (! port->write_urb->transfer_buffer) { 278 kfree(transfer_buffer); 279 usb_free_urb(port->write_urb); 280 port->write_urb = NULL; 281 return -ENOMEM; 282 } 283 284 // get hardware version 285 result = usb_control_msg( port->serial->dev, 286 usb_rcvctrlpipe(port->serial->dev, 0 ), 287 SUSBCRequest_GetMisc, 288 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 289 SUSBCR_MSC_GetHWVersion, 290 0, 291 transfer_buffer, 292 transfer_buffer_length, 293 KOBIL_TIMEOUT 294 ); 295 dbg("%s - port %d Send get_HW_version URB returns: %i", __FUNCTION__, port->number, result); 296 dbg("Harware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] ); 297 298 // get firmware version 299 result = usb_control_msg( port->serial->dev, 300 usb_rcvctrlpipe(port->serial->dev, 0 ), 301 SUSBCRequest_GetMisc, 302 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 303 SUSBCR_MSC_GetFWVersion, 304 0, 305 transfer_buffer, 306 transfer_buffer_length, 307 KOBIL_TIMEOUT 308 ); 309 dbg("%s - port %d Send get_FW_version URB returns: %i", __FUNCTION__, port->number, result); 310 dbg("Firmware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] ); 311 312 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) { 313 // Setting Baudrate, Parity and Stopbits 314 result = usb_control_msg( port->serial->dev, 315 usb_rcvctrlpipe(port->serial->dev, 0 ), 316 SUSBCRequest_SetBaudRateParityAndStopBits, 317 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 318 SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity | 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", __FUNCTION__, port->number, result); 325 326 // reset all queues 327 result = usb_control_msg( port->serial->dev, 328 usb_rcvctrlpipe(port->serial->dev, 0 ), 329 SUSBCRequest_Misc, 330 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 331 SUSBCR_MSC_ResetAllQueues, 332 0, 333 transfer_buffer, 334 0, 335 KOBIL_TIMEOUT 336 ); 337 dbg("%s - port %d Send reset_all_queues URB returns: %i", __FUNCTION__, port->number, result); 338 } 339 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 340 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 341 // start reading (Adapter B 'cause PNP string) 342 result = usb_submit_urb( port->interrupt_in_urb, GFP_ATOMIC ); 343 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); 344 } 345 346 kfree(transfer_buffer); 347 return 0; 348} 349 350 351static void kobil_close (struct usb_serial_port *port, struct file *filp) 352{ 353 dbg("%s - port %d", __FUNCTION__, port->number); 354 355 if (port->write_urb) { 356 usb_kill_urb(port->write_urb); 357 usb_free_urb( port->write_urb ); 358 port->write_urb = NULL; 359 } 360 if (port->interrupt_in_urb) 361 usb_kill_urb(port->interrupt_in_urb); 362} 363 364 365static void kobil_read_int_callback( struct urb *purb, struct pt_regs *regs) 366{ 367 int i; 368 int result; 369 struct usb_serial_port *port = (struct usb_serial_port *) purb->context; 370 struct tty_struct *tty; 371 unsigned char *data = purb->transfer_buffer; 372// char *dbg_data; 373 374 dbg("%s - port %d", __FUNCTION__, port->number); 375 376 if (purb->status) { 377 dbg("%s - port %d Read int status not zero: %d", __FUNCTION__, port->number, purb->status); 378 return; 379 } 380 381 tty = port->tty; 382 if (purb->actual_length) { 383 384 // BEGIN DEBUG 385 /* 386 dbg_data = (unsigned char *) kmalloc((3 * purb->actual_length + 10) * sizeof(char), GFP_KERNEL); 387 if (! dbg_data) { 388 return; 389 } 390 memset(dbg_data, 0, (3 * purb->actual_length + 10)); 391 for (i = 0; i < purb->actual_length; i++) { 392 sprintf(dbg_data +3*i, "%02X ", data[i]); 393 } 394 dbg(" <-- %s", dbg_data ); 395 kfree(dbg_data); 396 */ 397 // END DEBUG 398 399 for (i = 0; i < purb->actual_length; ++i) { 400 // if we insert more than TTY_FLIPBUF_SIZE characters, we drop them. 401 if(tty->flip.count >= TTY_FLIPBUF_SIZE) { 402 tty_flip_buffer_push(tty); 403 } 404 // this doesn't actually push the data through unless tty->low_latency is set 405 tty_insert_flip_char(tty, data[i], 0); 406 } 407 tty_flip_buffer_push(tty); 408 } 409 410 // someone sets the dev to 0 if the close method has been called 411 port->interrupt_in_urb->dev = port->serial->dev; 412 413 result = usb_submit_urb( port->interrupt_in_urb, GFP_ATOMIC ); 414 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); 415} 416 417 418static void kobil_write_callback( struct urb *purb, struct pt_regs *regs ) 419{ 420} 421 422 423static int kobil_write (struct usb_serial_port *port, 424 const unsigned char *buf, int count) 425{ 426 int length = 0; 427 int result = 0; 428 int todo = 0; 429 struct kobil_private * priv; 430 431 if (count == 0) { 432 dbg("%s - port %d write request of 0 bytes", __FUNCTION__, 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", __FUNCTION__, port->number); 440 return -ENOMEM; 441 } 442 443 // Copy data to buffer 444 memcpy (priv->buf + priv->filled, buf, count); 445 446 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, priv->buf + priv->filled); 447 448 priv->filled = priv->filled + count; 449 450 451 // only send complete block. TWIN, KAAN SIM and adapter K use the same protocol. 452 if ( ((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) || 453 ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4))) ) { 454 455 // stop reading (except TWIN and KAAN SIM) 456 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) 457 usb_kill_urb(port->interrupt_in_urb); 458 459 todo = priv->filled - priv->cur_pos; 460 461 while(todo > 0) { 462 // max 8 byte in one urb (endpoint size) 463 length = (todo < 8) ? todo : 8; 464 // copy data to transfer buffer 465 memcpy(port->write_urb->transfer_buffer, priv->buf + priv->cur_pos, length ); 466 usb_fill_int_urb( port->write_urb, 467 port->serial->dev, 468 usb_sndintpipe(port->serial->dev, priv->write_int_endpoint_address), 469 port->write_urb->transfer_buffer, 470 length, 471 kobil_write_callback, 472 port, 473 8 474 ); 475 476 priv->cur_pos = priv->cur_pos + length; 477 result = usb_submit_urb( port->write_urb, GFP_NOIO ); 478 dbg("%s - port %d Send write URB returns: %i", __FUNCTION__, port->number, result); 479 todo = priv->filled - priv->cur_pos; 480 481 if (todo > 0) { 482 msleep(24); 483 } 484 485 } // end while 486 487 priv->filled = 0; 488 priv->cur_pos = 0; 489 490 // someone sets the dev to 0 if the close method has been called 491 port->interrupt_in_urb->dev = port->serial->dev; 492 493 // start reading (except TWIN and KAAN SIM) 494 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) { 495 // someone sets the dev to 0 if the close method has been called 496 port->interrupt_in_urb->dev = port->serial->dev; 497 498 result = usb_submit_urb( port->interrupt_in_urb, GFP_NOIO ); 499 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); 500 } 501 } 502 return count; 503} 504 505 506static int kobil_write_room (struct usb_serial_port *port) 507{ 508 //dbg("%s - port %d", __FUNCTION__, port->number); 509 return 8; 510} 511 512 513static int kobil_tiocmget(struct usb_serial_port *port, struct file *file) 514{ 515 struct kobil_private * priv; 516 int result; 517 unsigned char *transfer_buffer; 518 int transfer_buffer_length = 8; 519 520 priv = usb_get_serial_port_data(port); 521 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) { 522 // This device doesn't support ioctl calls 523 return -EINVAL; 524 } 525 526 // allocate memory for transfer buffer 527 transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL); 528 if (!transfer_buffer) { 529 return -ENOMEM; 530 } 531 memset(transfer_buffer, 0, transfer_buffer_length); 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 __FUNCTION__, port->number, result, transfer_buffer[0]); 545 546 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) { 547 priv->line_state |= TIOCM_DSR; 548 } else { 549 priv->line_state &= ~TIOCM_DSR; 550 } 551 552 kfree(transfer_buffer); 553 return priv->line_state; 554} 555 556static int kobil_tiocmset(struct usb_serial_port *port, struct file *file, 557 unsigned int set, unsigned int clear) 558{ 559 struct kobil_private * priv; 560 int result; 561 int dtr = 0; 562 int rts = 0; 563 unsigned char *transfer_buffer; 564 int transfer_buffer_length = 8; 565 566 priv = usb_get_serial_port_data(port); 567 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (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 = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL); 574 if (! transfer_buffer) { 575 return -ENOMEM; 576 } 577 memset(transfer_buffer, 0, transfer_buffer_length); 578 579 if (set & TIOCM_RTS) 580 rts = 1; 581 if (set & TIOCM_DTR) 582 dtr = 1; 583 if (clear & TIOCM_RTS) 584 rts = 0; 585 if (clear & TIOCM_DTR) 586 dtr = 0; 587 588 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) { 589 if (dtr != 0) 590 dbg("%s - port %d Setting DTR", __FUNCTION__, port->number); 591 else 592 dbg("%s - port %d Clearing DTR", __FUNCTION__, 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", __FUNCTION__, port->number); 605 else 606 dbg("%s - port %d Clearing RTS", __FUNCTION__, port->number); 607 result = usb_control_msg( port->serial->dev, 608 usb_rcvctrlpipe(port->serial->dev, 0 ), 609 SUSBCRequest_SetStatusLinesOrQueues, 610 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 611 ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS), 612 0, 613 transfer_buffer, 614 0, 615 KOBIL_TIMEOUT); 616 } 617 dbg("%s - port %d Send set_status_line URB returns: %i", __FUNCTION__, port->number, result); 618 kfree(transfer_buffer); 619 return (result < 0) ? result : 0; 620} 621 622 623static int kobil_ioctl(struct usb_serial_port *port, struct file *file, 624 unsigned int cmd, unsigned long arg) 625{ 626 struct kobil_private * priv; 627 int result; 628 unsigned short urb_val = 0; 629 unsigned char *transfer_buffer; 630 int transfer_buffer_length = 8; 631 char *settings; 632 void __user *user_arg = (void __user *)arg; 633 634 priv = usb_get_serial_port_data(port); 635 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) { 636 // This device doesn't support ioctl calls 637 return 0; 638 } 639 640 switch (cmd) { 641 case TCGETS: // 0x5401 642 if (!access_ok(VERIFY_WRITE, user_arg, sizeof(struct termios))) { 643 dbg("%s - port %d Error in access_ok", __FUNCTION__, port->number); 644 return -EFAULT; 645 } 646 if (kernel_termios_to_user_termios((struct termios __user *)arg, 647 &priv->internal_termios)) 648 return -EFAULT; 649 return 0; 650 651 case TCSETS: // 0x5402 652 if (!(port->tty->termios)) { 653 dbg("%s - port %d Error: port->tty->termios is NULL", __FUNCTION__, port->number); 654 return -ENOTTY; 655 } 656 if (!access_ok(VERIFY_READ, user_arg, sizeof(struct termios))) { 657 dbg("%s - port %d Error in access_ok", __FUNCTION__, port->number); 658 return -EFAULT; 659 } 660 if (user_termios_to_kernel_termios(&priv->internal_termios, 661 (struct termios __user *)arg)) 662 return -EFAULT; 663 664 settings = (unsigned char *) kmalloc(50, GFP_KERNEL); 665 if (! settings) { 666 return -ENOBUFS; 667 } 668 memset(settings, 0, 50); 669 670 switch (priv->internal_termios.c_cflag & CBAUD) { 671 case B1200: 672 urb_val = SUSBCR_SBR_1200; 673 strcat(settings, "1200 "); 674 break; 675 case B9600: 676 default: 677 urb_val = SUSBCR_SBR_9600; 678 strcat(settings, "9600 "); 679 break; 680 } 681 682 urb_val |= (priv->internal_termios.c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits : SUSBCR_SPASB_1StopBit; 683 strcat(settings, (priv->internal_termios.c_cflag & CSTOPB) ? "2 StopBits " : "1 StopBit "); 684 685 if (priv->internal_termios.c_cflag & PARENB) { 686 if (priv->internal_termios.c_cflag & PARODD) { 687 urb_val |= SUSBCR_SPASB_OddParity; 688 strcat(settings, "Odd Parity"); 689 } else { 690 urb_val |= SUSBCR_SPASB_EvenParity; 691 strcat(settings, "Even Parity"); 692 } 693 } else { 694 urb_val |= SUSBCR_SPASB_NoParity; 695 strcat(settings, "No Parity"); 696 } 697 dbg("%s - port %d setting port to: %s", __FUNCTION__, port->number, settings ); 698 699 result = usb_control_msg( port->serial->dev, 700 usb_rcvctrlpipe(port->serial->dev, 0 ), 701 SUSBCRequest_SetBaudRateParityAndStopBits, 702 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 703 urb_val, 704 0, 705 settings, 706 0, 707 KOBIL_TIMEOUT 708 ); 709 710 dbg("%s - port %d Send set_baudrate URB returns: %i", __FUNCTION__, port->number, result); 711 kfree(settings); 712 return 0; 713 714 case TCFLSH: // 0x540B 715 transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL); 716 if (! transfer_buffer) { 717 return -ENOBUFS; 718 } 719 720 result = usb_control_msg( port->serial->dev, 721 usb_rcvctrlpipe(port->serial->dev, 0 ), 722 SUSBCRequest_Misc, 723 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 724 SUSBCR_MSC_ResetAllQueues, 725 0, 726 NULL,//transfer_buffer, 727 0, 728 KOBIL_TIMEOUT 729 ); 730 731 dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __FUNCTION__, port->number, result); 732 733 kfree(transfer_buffer); 734 return ((result < 0) ? -EFAULT : 0); 735 736 } 737 return -ENOIOCTLCMD; 738} 739 740 741static int __init kobil_init (void) 742{ 743 int retval; 744 retval = usb_serial_register(&kobil_device); 745 if (retval) 746 goto failed_usb_serial_register; 747 retval = usb_register(&kobil_driver); 748 if (retval) 749 goto failed_usb_register; 750 751 info(DRIVER_VERSION " " DRIVER_AUTHOR); 752 info(DRIVER_DESC); 753 754 return 0; 755failed_usb_register: 756 usb_serial_deregister(&kobil_device); 757failed_usb_serial_register: 758 return retval; 759} 760 761 762static void __exit kobil_exit (void) 763{ 764 usb_deregister (&kobil_driver); 765 usb_serial_deregister (&kobil_device); 766} 767 768module_init(kobil_init); 769module_exit(kobil_exit); 770 771MODULE_AUTHOR( DRIVER_AUTHOR ); 772MODULE_DESCRIPTION( DRIVER_DESC ); 773MODULE_LICENSE( "GPL" ); 774 775module_param(debug, bool, S_IRUGO | S_IWUSR); 776MODULE_PARM_DESC(debug, "Debug enabled or not"); 777