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 54 static 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 */ 72 static int kobil_startup (struct usb_serial *serial); 73 static void kobil_shutdown (struct usb_serial *serial); 74 static int kobil_open (struct usb_serial_port *port, struct file *filp); 75 static void kobil_close (struct usb_serial_port *port, struct file *filp); 76 static int kobil_write (struct usb_serial_port *port, 77 const unsigned char *buf, int count); 78 static int kobil_write_room(struct usb_serial_port *port); 79 static int kobil_ioctl(struct usb_serial_port *port, struct file *file, 80 unsigned int cmd, unsigned long arg); 81 static int kobil_tiocmget(struct usb_serial_port *port, struct file *file); 82 static int kobil_tiocmset(struct usb_serial_port *port, struct file *file, 83 unsigned int set, unsigned int clear); 84 static void kobil_read_int_callback( struct urb *urb, struct pt_regs *regs ); 85 static void kobil_write_callback( struct urb *purb, struct pt_regs *regs ); 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 .owner = THIS_MODULE, 101 .name = "kobil", 102 .probe = usb_serial_probe, 103 .disconnect = usb_serial_disconnect, 104 .id_table = id_table, 105 }; 106 107 108 static struct usb_serial_device_type kobil_device = { 109 .owner = THIS_MODULE, 110 .name = "KOBIL USB smart card terminal", 111 .id_table = id_table, 112 .num_interrupt_in = NUM_DONT_CARE, 113 .num_bulk_in = 0, 114 .num_bulk_out = 0, 115 .num_ports = 1, 116 .attach = kobil_startup, 117 .shutdown = kobil_shutdown, 118 .ioctl = kobil_ioctl, 119 .tiocmget = kobil_tiocmget, 120 .tiocmset = kobil_tiocmset, 121 .open = kobil_open, 122 .close = kobil_close, 123 .write = kobil_write, 124 .write_room = kobil_write_room, 125 .read_int_callback = kobil_read_int_callback, 126 }; 127 128 129 struct kobil_private { 130 int write_int_endpoint_address; 131 int read_int_endpoint_address; 132 unsigned char buf[KOBIL_BUF_LENGTH]; // buffer for the APDU to send 133 int filled; // index of the last char in buf 134 int cur_pos; // index of the next char to send in buf 135 __u16 device_type; 136 int line_state; 137 struct termios internal_termios; 138 }; 139 140 141 static int kobil_startup (struct usb_serial *serial) 142 { 143 int i; 144 struct kobil_private *priv; 145 struct usb_device *pdev; 146 struct usb_host_config *actconfig; 147 struct usb_interface *interface; 148 struct usb_host_interface *altsetting; 149 struct usb_host_endpoint *endpoint; 150 151 priv = kmalloc(sizeof(struct kobil_private), GFP_KERNEL); 152 if (!priv){ 153 return -ENOMEM; 154 } 155 156 priv->filled = 0; 157 priv->cur_pos = 0; 158 priv->device_type = le16_to_cpu(serial->dev->descriptor.idProduct); 159 priv->line_state = 0; 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 "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n"); 167 break; 168 case KOBIL_USBTWIN_PRODUCT_ID: 169 printk(KERN_DEBUG "KOBIL USBTWIN detected\n"); 170 break; 171 case KOBIL_KAAN_SIM_PRODUCT_ID: 172 printk(KERN_DEBUG "KOBIL KAAN SIM detected\n"); 173 break; 174 } 175 usb_set_serial_port_data(serial->port[0], priv); 176 177 // search for the necessary endpoints 178 pdev = serial->dev; 179 actconfig = pdev->actconfig; 180 interface = actconfig->interface[0]; 181 altsetting = interface->cur_altsetting; 182 endpoint = altsetting->endpoint; 183 184 for (i = 0; i < altsetting->desc.bNumEndpoints; i++) { 185 endpoint = &altsetting->endpoint[i]; 186 if (((endpoint->desc.bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) && 187 ((endpoint->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) { 188 dbg("%s Found interrupt out endpoint. Address: %d", __FUNCTION__, endpoint->desc.bEndpointAddress); 189 priv->write_int_endpoint_address = endpoint->desc.bEndpointAddress; 190 } 191 if (((endpoint->desc.bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) && 192 ((endpoint->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) { 193 dbg("%s Found interrupt in endpoint. Address: %d", __FUNCTION__, endpoint->desc.bEndpointAddress); 194 priv->read_int_endpoint_address = endpoint->desc.bEndpointAddress; 195 } 196 } 197 return 0; 198 } 199 200 201 static void kobil_shutdown (struct usb_serial *serial) 202 { 203 int i; 204 dbg("%s - port %d", __FUNCTION__, serial->port[0]->number); 205 206 for (i=0; i < serial->num_ports; ++i) { 207 while (serial->port[i]->open_count > 0) { 208 kobil_close (serial->port[i], NULL); 209 } 210 kfree(usb_get_serial_port_data(serial->port[i])); 211 usb_set_serial_port_data(serial->port[i], NULL); 212 } 213 } 214 215 216 static int kobil_open (struct usb_serial_port *port, struct file *filp) 217 { 218 int i, result = 0; 219 struct kobil_private *priv; 220 unsigned char *transfer_buffer; 221 int transfer_buffer_length = 8; 222 int write_urb_transfer_buffer_length = 8; 223 224 dbg("%s - port %d", __FUNCTION__, port->number); 225 priv = usb_get_serial_port_data(port); 226 priv->line_state = 0; 227 228 // someone sets the dev to 0 if the close method has been called 229 port->interrupt_in_urb->dev = port->serial->dev; 230 231 232 /* force low_latency on so that our tty_push actually forces 233 * the data through, otherwise it is scheduled, and with high 234 * data rates (like with OHCI) data can get lost. 235 */ 236 port->tty->low_latency = 1; 237 238 // without this, every push_tty_char is echoed :-( 239 port->tty->termios->c_lflag = 0; 240 port->tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE); 241 port->tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF; 242 port->tty->termios->c_oflag &= ~ONLCR; // do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) 243 244 // set up internal termios structure 245 priv->internal_termios.c_iflag = port->tty->termios->c_iflag; 246 priv->internal_termios.c_oflag = port->tty->termios->c_oflag; 247 priv->internal_termios.c_cflag = port->tty->termios->c_cflag; 248 priv->internal_termios.c_lflag = port->tty->termios->c_lflag; 249 250 for (i=0; i<NCCS; i++) { 251 priv->internal_termios.c_cc[i] = port->tty->termios->c_cc[i]; 252 } 253 254 // allocate memory for transfer buffer 255 transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL); 256 if (! transfer_buffer) { 257 return -ENOMEM; 258 } else { 259 memset(transfer_buffer, 0, transfer_buffer_length); 260 } 261 262 // allocate write_urb 263 if (!port->write_urb) { 264 dbg("%s - port %d Allocating port->write_urb", __FUNCTION__, port->number); 265 port->write_urb = usb_alloc_urb(0, GFP_KERNEL); 266 if (!port->write_urb) { 267 dbg("%s - port %d usb_alloc_urb failed", __FUNCTION__, port->number); 268 kfree(transfer_buffer); 269 return -ENOMEM; 270 } 271 } 272 273 // allocate memory for write_urb transfer buffer 274 port->write_urb->transfer_buffer = (unsigned char *) kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL); 275 if (! port->write_urb->transfer_buffer) { 276 kfree(transfer_buffer); 277 usb_free_urb(port->write_urb); 278 port->write_urb = NULL; 279 return -ENOMEM; 280 } 281 282 // get hardware version 283 result = usb_control_msg( port->serial->dev, 284 usb_rcvctrlpipe(port->serial->dev, 0 ), 285 SUSBCRequest_GetMisc, 286 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 287 SUSBCR_MSC_GetHWVersion, 288 0, 289 transfer_buffer, 290 transfer_buffer_length, 291 KOBIL_TIMEOUT 292 ); 293 dbg("%s - port %d Send get_HW_version URB returns: %i", __FUNCTION__, port->number, result); 294 dbg("Harware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] ); 295 296 // get firmware version 297 result = usb_control_msg( port->serial->dev, 298 usb_rcvctrlpipe(port->serial->dev, 0 ), 299 SUSBCRequest_GetMisc, 300 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 301 SUSBCR_MSC_GetFWVersion, 302 0, 303 transfer_buffer, 304 transfer_buffer_length, 305 KOBIL_TIMEOUT 306 ); 307 dbg("%s - port %d Send get_FW_version URB returns: %i", __FUNCTION__, port->number, result); 308 dbg("Firmware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] ); 309 310 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) { 311 // Setting Baudrate, Parity and Stopbits 312 result = usb_control_msg( port->serial->dev, 313 usb_rcvctrlpipe(port->serial->dev, 0 ), 314 SUSBCRequest_SetBaudRateParityAndStopBits, 315 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 316 SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity | SUSBCR_SPASB_1StopBit, 317 0, 318 transfer_buffer, 319 0, 320 KOBIL_TIMEOUT 321 ); 322 dbg("%s - port %d Send set_baudrate URB returns: %i", __FUNCTION__, port->number, result); 323 324 // reset all queues 325 result = usb_control_msg( port->serial->dev, 326 usb_rcvctrlpipe(port->serial->dev, 0 ), 327 SUSBCRequest_Misc, 328 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 329 SUSBCR_MSC_ResetAllQueues, 330 0, 331 transfer_buffer, 332 0, 333 KOBIL_TIMEOUT 334 ); 335 dbg("%s - port %d Send reset_all_queues URB returns: %i", __FUNCTION__, port->number, result); 336 } 337 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 338 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 339 // start reading (Adapter B 'cause PNP string) 340 result = usb_submit_urb( port->interrupt_in_urb, GFP_ATOMIC ); 341 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); 342 } 343 344 kfree(transfer_buffer); 345 return 0; 346 } 347 348 349 static void kobil_close (struct usb_serial_port *port, struct file *filp) 350 { 351 dbg("%s - port %d", __FUNCTION__, port->number); 352 353 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 if (port->interrupt_in_urb) 359 usb_kill_urb(port->interrupt_in_urb); 360 } 361 362 363 static void kobil_read_int_callback( struct urb *purb, struct pt_regs *regs) 364 { 365 int i; 366 int result; 367 struct usb_serial_port *port = (struct usb_serial_port *) purb->context; 368 struct tty_struct *tty; 369 unsigned char *data = purb->transfer_buffer; 370 // char *dbg_data; 371 372 dbg("%s - port %d", __FUNCTION__, port->number); 373 374 if (purb->status) { 375 dbg("%s - port %d Read int status not zero: %d", __FUNCTION__, port->number, purb->status); 376 return; 377 } 378 379 tty = port->tty; 380 if (purb->actual_length) { 381 382 // BEGIN DEBUG 383 /* 384 dbg_data = (unsigned char *) kmalloc((3 * purb->actual_length + 10) * sizeof(char), GFP_KERNEL); 385 if (! dbg_data) { 386 return; 387 } 388 memset(dbg_data, 0, (3 * purb->actual_length + 10)); 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 for (i = 0; i < purb->actual_length; ++i) { 398 // if we insert more than TTY_FLIPBUF_SIZE characters, we drop them. 399 if(tty->flip.count >= TTY_FLIPBUF_SIZE) { 400 tty_flip_buffer_push(tty); 401 } 402 // this doesn't actually push the data through unless tty->low_latency is set 403 tty_insert_flip_char(tty, data[i], 0); 404 } 405 tty_flip_buffer_push(tty); 406 } 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", __FUNCTION__, port->number, result); 413 } 414 415 416 static void kobil_write_callback( struct urb *purb, struct pt_regs *regs ) 417 { 418 } 419 420 421 static int kobil_write (struct usb_serial_port *port, 422 const unsigned char *buf, int count) 423 { 424 int length = 0; 425 int result = 0; 426 int todo = 0; 427 struct kobil_private * priv; 428 429 if (count == 0) { 430 dbg("%s - port %d write request of 0 bytes", __FUNCTION__, port->number); 431 return 0; 432 } 433 434 priv = usb_get_serial_port_data(port); 435 436 if (count > (KOBIL_BUF_LENGTH - priv->filled)) { 437 dbg("%s - port %d Error: write request bigger than buffer size", __FUNCTION__, port->number); 438 return -ENOMEM; 439 } 440 441 // Copy data to buffer 442 memcpy (priv->buf + priv->filled, buf, count); 443 444 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, priv->buf + priv->filled); 445 446 priv->filled = priv->filled + count; 447 448 449 // only send complete block. TWIN, KAAN SIM and adapter K use the same protocol. 450 if ( ((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) || 451 ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4))) ) { 452 453 // stop reading (except TWIN and KAAN SIM) 454 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) 455 usb_kill_urb(port->interrupt_in_urb); 456 457 todo = priv->filled - priv->cur_pos; 458 459 while(todo > 0) { 460 // max 8 byte in one urb (endpoint size) 461 length = (todo < 8) ? todo : 8; 462 // copy data to transfer buffer 463 memcpy(port->write_urb->transfer_buffer, priv->buf + priv->cur_pos, length ); 464 usb_fill_int_urb( port->write_urb, 465 port->serial->dev, 466 usb_sndintpipe(port->serial->dev, priv->write_int_endpoint_address), 467 port->write_urb->transfer_buffer, 468 length, 469 kobil_write_callback, 470 port, 471 8 472 ); 473 474 priv->cur_pos = priv->cur_pos + length; 475 result = usb_submit_urb( port->write_urb, GFP_NOIO ); 476 dbg("%s - port %d Send write URB returns: %i", __FUNCTION__, port->number, result); 477 todo = priv->filled - priv->cur_pos; 478 479 if (todo > 0) { 480 msleep(24); 481 } 482 483 } // end while 484 485 priv->filled = 0; 486 priv->cur_pos = 0; 487 488 // someone sets the dev to 0 if the close method has been called 489 port->interrupt_in_urb->dev = port->serial->dev; 490 491 // start reading (except TWIN and KAAN SIM) 492 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) { 493 // someone sets the dev to 0 if the close method has been called 494 port->interrupt_in_urb->dev = port->serial->dev; 495 496 result = usb_submit_urb( port->interrupt_in_urb, GFP_NOIO ); 497 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); 498 } 499 } 500 return count; 501 } 502 503 504 static int kobil_write_room (struct usb_serial_port *port) 505 { 506 //dbg("%s - port %d", __FUNCTION__, port->number); 507 return 8; 508 } 509 510 511 static int kobil_tiocmget(struct usb_serial_port *port, struct file *file) 512 { 513 struct kobil_private * priv; 514 int result; 515 unsigned char *transfer_buffer; 516 int transfer_buffer_length = 8; 517 518 priv = usb_get_serial_port_data(port); 519 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) { 520 // This device doesn't support ioctl calls 521 return -EINVAL; 522 } 523 524 // allocate memory for transfer buffer 525 transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL); 526 if (!transfer_buffer) { 527 return -ENOMEM; 528 } 529 memset(transfer_buffer, 0, transfer_buffer_length); 530 531 result = usb_control_msg( port->serial->dev, 532 usb_rcvctrlpipe(port->serial->dev, 0 ), 533 SUSBCRequest_GetStatusLineState, 534 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 535 0, 536 0, 537 transfer_buffer, 538 transfer_buffer_length, 539 KOBIL_TIMEOUT); 540 541 dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x", 542 __FUNCTION__, port->number, result, transfer_buffer[0]); 543 544 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) { 545 priv->line_state |= TIOCM_DSR; 546 } else { 547 priv->line_state &= ~TIOCM_DSR; 548 } 549 550 kfree(transfer_buffer); 551 return priv->line_state; 552 } 553 554 static int kobil_tiocmset(struct usb_serial_port *port, struct file *file, 555 unsigned int set, unsigned int clear) 556 { 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 priv = usb_get_serial_port_data(port); 565 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) { 566 // This device doesn't support ioctl calls 567 return -EINVAL; 568 } 569 570 // allocate memory for transfer buffer 571 transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL); 572 if (! transfer_buffer) { 573 return -ENOMEM; 574 } 575 memset(transfer_buffer, 0, transfer_buffer_length); 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", __FUNCTION__, port->number); 589 else 590 dbg("%s - port %d Clearing DTR", __FUNCTION__, port->number); 591 result = usb_control_msg( port->serial->dev, 592 usb_rcvctrlpipe(port->serial->dev, 0 ), 593 SUSBCRequest_SetStatusLinesOrQueues, 594 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 595 ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR), 596 0, 597 transfer_buffer, 598 0, 599 KOBIL_TIMEOUT); 600 } else { 601 if (rts != 0) 602 dbg("%s - port %d Setting RTS", __FUNCTION__, port->number); 603 else 604 dbg("%s - port %d Clearing RTS", __FUNCTION__, port->number); 605 result = usb_control_msg( port->serial->dev, 606 usb_rcvctrlpipe(port->serial->dev, 0 ), 607 SUSBCRequest_SetStatusLinesOrQueues, 608 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 609 ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS), 610 0, 611 transfer_buffer, 612 0, 613 KOBIL_TIMEOUT); 614 } 615 dbg("%s - port %d Send set_status_line URB returns: %i", __FUNCTION__, port->number, result); 616 kfree(transfer_buffer); 617 return (result < 0) ? result : 0; 618 } 619 620 621 static int kobil_ioctl(struct usb_serial_port *port, struct file *file, 622 unsigned int cmd, unsigned long arg) 623 { 624 struct kobil_private * priv; 625 int result; 626 unsigned short urb_val = 0; 627 unsigned char *transfer_buffer; 628 int transfer_buffer_length = 8; 629 char *settings; 630 void __user *user_arg = (void __user *)arg; 631 632 priv = usb_get_serial_port_data(port); 633 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) { 634 // This device doesn't support ioctl calls 635 return 0; 636 } 637 638 switch (cmd) { 639 case TCGETS: // 0x5401 640 if (!access_ok(VERIFY_WRITE, user_arg, sizeof(struct termios))) { 641 dbg("%s - port %d Error in access_ok", __FUNCTION__, port->number); 642 return -EFAULT; 643 } 644 if (kernel_termios_to_user_termios((struct termios __user *)arg, 645 &priv->internal_termios)) 646 return -EFAULT; 647 return 0; 648 649 case TCSETS: // 0x5402 650 if (!(port->tty->termios)) { 651 dbg("%s - port %d Error: port->tty->termios is NULL", __FUNCTION__, port->number); 652 return -ENOTTY; 653 } 654 if (!access_ok(VERIFY_READ, user_arg, sizeof(struct termios))) { 655 dbg("%s - port %d Error in access_ok", __FUNCTION__, port->number); 656 return -EFAULT; 657 } 658 if (user_termios_to_kernel_termios(&priv->internal_termios, 659 (struct termios __user *)arg)) 660 return -EFAULT; 661 662 settings = (unsigned char *) kmalloc(50, GFP_KERNEL); 663 if (! settings) { 664 return -ENOBUFS; 665 } 666 memset(settings, 0, 50); 667 668 switch (priv->internal_termios.c_cflag & CBAUD) { 669 case B1200: 670 urb_val = SUSBCR_SBR_1200; 671 strcat(settings, "1200 "); 672 break; 673 case B9600: 674 default: 675 urb_val = SUSBCR_SBR_9600; 676 strcat(settings, "9600 "); 677 break; 678 } 679 680 urb_val |= (priv->internal_termios.c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits : SUSBCR_SPASB_1StopBit; 681 strcat(settings, (priv->internal_termios.c_cflag & CSTOPB) ? "2 StopBits " : "1 StopBit "); 682 683 if (priv->internal_termios.c_cflag & PARENB) { 684 if (priv->internal_termios.c_cflag & PARODD) { 685 urb_val |= SUSBCR_SPASB_OddParity; 686 strcat(settings, "Odd Parity"); 687 } else { 688 urb_val |= SUSBCR_SPASB_EvenParity; 689 strcat(settings, "Even Parity"); 690 } 691 } else { 692 urb_val |= SUSBCR_SPASB_NoParity; 693 strcat(settings, "No Parity"); 694 } 695 dbg("%s - port %d setting port to: %s", __FUNCTION__, port->number, settings ); 696 697 result = usb_control_msg( port->serial->dev, 698 usb_rcvctrlpipe(port->serial->dev, 0 ), 699 SUSBCRequest_SetBaudRateParityAndStopBits, 700 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 701 urb_val, 702 0, 703 settings, 704 0, 705 KOBIL_TIMEOUT 706 ); 707 708 dbg("%s - port %d Send set_baudrate URB returns: %i", __FUNCTION__, port->number, result); 709 kfree(settings); 710 return 0; 711 712 case TCFLSH: // 0x540B 713 transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL); 714 if (! transfer_buffer) { 715 return -ENOBUFS; 716 } 717 718 result = usb_control_msg( port->serial->dev, 719 usb_rcvctrlpipe(port->serial->dev, 0 ), 720 SUSBCRequest_Misc, 721 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 722 SUSBCR_MSC_ResetAllQueues, 723 0, 724 NULL,//transfer_buffer, 725 0, 726 KOBIL_TIMEOUT 727 ); 728 729 dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __FUNCTION__, port->number, result); 730 731 kfree(transfer_buffer); 732 return ((result < 0) ? -EFAULT : 0); 733 734 } 735 return -ENOIOCTLCMD; 736 } 737 738 739 static int __init kobil_init (void) 740 { 741 int retval; 742 retval = usb_serial_register(&kobil_device); 743 if (retval) 744 goto failed_usb_serial_register; 745 retval = usb_register(&kobil_driver); 746 if (retval) 747 goto failed_usb_register; 748 749 info(DRIVER_VERSION " " DRIVER_AUTHOR); 750 info(DRIVER_DESC); 751 752 return 0; 753 failed_usb_register: 754 usb_serial_deregister(&kobil_device); 755 failed_usb_serial_register: 756 return retval; 757 } 758 759 760 static void __exit kobil_exit (void) 761 { 762 usb_deregister (&kobil_driver); 763 usb_serial_deregister (&kobil_device); 764 } 765 766 module_init(kobil_init); 767 module_exit(kobil_exit); 768 769 MODULE_AUTHOR( DRIVER_AUTHOR ); 770 MODULE_DESCRIPTION( DRIVER_DESC ); 771 MODULE_LICENSE( "GPL" ); 772 773 module_param(debug, bool, S_IRUGO | S_IWUSR); 774 MODULE_PARM_DESC(debug, "Debug enabled or not"); 775