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 .name = "kobil", 101 .probe = usb_serial_probe, 102 .disconnect = usb_serial_disconnect, 103 .id_table = id_table, 104 .no_dynamic_id = 1, 105 }; 106 107 108 static struct usb_serial_driver kobil_device = { 109 .driver = { 110 .owner = THIS_MODULE, 111 .name = "kobil", 112 }, 113 .description = "KOBIL USB smart card terminal", 114 .id_table = id_table, 115 .num_interrupt_in = NUM_DONT_CARE, 116 .num_bulk_in = 0, 117 .num_bulk_out = 0, 118 .num_ports = 1, 119 .attach = kobil_startup, 120 .shutdown = kobil_shutdown, 121 .ioctl = kobil_ioctl, 122 .tiocmget = kobil_tiocmget, 123 .tiocmset = kobil_tiocmset, 124 .open = kobil_open, 125 .close = kobil_close, 126 .write = kobil_write, 127 .write_room = kobil_write_room, 128 .read_int_callback = kobil_read_int_callback, 129 }; 130 131 132 struct kobil_private { 133 int write_int_endpoint_address; 134 int read_int_endpoint_address; 135 unsigned char buf[KOBIL_BUF_LENGTH]; // buffer for the APDU to send 136 int filled; // index of the last char in buf 137 int cur_pos; // index of the next char to send in buf 138 __u16 device_type; 139 int line_state; 140 struct termios internal_termios; 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 } 158 159 priv->filled = 0; 160 priv->cur_pos = 0; 161 priv->device_type = le16_to_cpu(serial->dev->descriptor.idProduct); 162 priv->line_state = 0; 163 164 switch (priv->device_type){ 165 case KOBIL_ADAPTER_B_PRODUCT_ID: 166 printk(KERN_DEBUG "KOBIL B1 PRO / KAAN PRO detected\n"); 167 break; 168 case KOBIL_ADAPTER_K_PRODUCT_ID: 169 printk(KERN_DEBUG "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n"); 170 break; 171 case KOBIL_USBTWIN_PRODUCT_ID: 172 printk(KERN_DEBUG "KOBIL USBTWIN detected\n"); 173 break; 174 case KOBIL_KAAN_SIM_PRODUCT_ID: 175 printk(KERN_DEBUG "KOBIL KAAN SIM detected\n"); 176 break; 177 } 178 usb_set_serial_port_data(serial->port[0], priv); 179 180 // search for the necessary endpoints 181 pdev = serial->dev; 182 actconfig = pdev->actconfig; 183 interface = actconfig->interface[0]; 184 altsetting = interface->cur_altsetting; 185 endpoint = altsetting->endpoint; 186 187 for (i = 0; i < altsetting->desc.bNumEndpoints; i++) { 188 endpoint = &altsetting->endpoint[i]; 189 if (((endpoint->desc.bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) && 190 ((endpoint->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) { 191 dbg("%s Found interrupt out endpoint. Address: %d", __FUNCTION__, endpoint->desc.bEndpointAddress); 192 priv->write_int_endpoint_address = endpoint->desc.bEndpointAddress; 193 } 194 if (((endpoint->desc.bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) && 195 ((endpoint->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) { 196 dbg("%s Found interrupt in endpoint. Address: %d", __FUNCTION__, endpoint->desc.bEndpointAddress); 197 priv->read_int_endpoint_address = 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", __FUNCTION__, serial->port[0]->number); 208 209 for (i=0; i < serial->num_ports; ++i) { 210 while (serial->port[i]->open_count > 0) { 211 kobil_close (serial->port[i], NULL); 212 } 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 usb_serial_port *port, struct file *filp) 220 { 221 int i, 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", __FUNCTION__, port->number); 228 priv = usb_get_serial_port_data(port); 229 priv->line_state = 0; 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 port->tty->low_latency = 1; 240 241 // without this, every push_tty_char is echoed :-( 242 port->tty->termios->c_lflag = 0; 243 port->tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE); 244 port->tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF; 245 port->tty->termios->c_oflag &= ~ONLCR; // do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) 246 247 // set up internal termios structure 248 priv->internal_termios.c_iflag = port->tty->termios->c_iflag; 249 priv->internal_termios.c_oflag = port->tty->termios->c_oflag; 250 priv->internal_termios.c_cflag = port->tty->termios->c_cflag; 251 priv->internal_termios.c_lflag = port->tty->termios->c_lflag; 252 253 for (i=0; i<NCCS; i++) { 254 priv->internal_termios.c_cc[i] = port->tty->termios->c_cc[i]; 255 } 256 257 // allocate memory for transfer buffer 258 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 259 if (! transfer_buffer) { 260 return -ENOMEM; 261 } 262 263 // allocate write_urb 264 if (!port->write_urb) { 265 dbg("%s - port %d Allocating port->write_urb", __FUNCTION__, port->number); 266 port->write_urb = usb_alloc_urb(0, GFP_KERNEL); 267 if (!port->write_urb) { 268 dbg("%s - port %d usb_alloc_urb failed", __FUNCTION__, port->number); 269 kfree(transfer_buffer); 270 return -ENOMEM; 271 } 272 } 273 274 // allocate memory for write_urb transfer buffer 275 port->write_urb->transfer_buffer = (unsigned char *) kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL); 276 if (! port->write_urb->transfer_buffer) { 277 kfree(transfer_buffer); 278 usb_free_urb(port->write_urb); 279 port->write_urb = NULL; 280 return -ENOMEM; 281 } 282 283 // get hardware version 284 result = usb_control_msg( port->serial->dev, 285 usb_rcvctrlpipe(port->serial->dev, 0 ), 286 SUSBCRequest_GetMisc, 287 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 288 SUSBCR_MSC_GetHWVersion, 289 0, 290 transfer_buffer, 291 transfer_buffer_length, 292 KOBIL_TIMEOUT 293 ); 294 dbg("%s - port %d Send get_HW_version URB returns: %i", __FUNCTION__, port->number, result); 295 dbg("Harware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] ); 296 297 // get firmware version 298 result = usb_control_msg( port->serial->dev, 299 usb_rcvctrlpipe(port->serial->dev, 0 ), 300 SUSBCRequest_GetMisc, 301 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 302 SUSBCR_MSC_GetFWVersion, 303 0, 304 transfer_buffer, 305 transfer_buffer_length, 306 KOBIL_TIMEOUT 307 ); 308 dbg("%s - port %d Send get_FW_version URB returns: %i", __FUNCTION__, port->number, result); 309 dbg("Firmware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] ); 310 311 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 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 | SUSBCR_SPASB_1StopBit, 318 0, 319 transfer_buffer, 320 0, 321 KOBIL_TIMEOUT 322 ); 323 dbg("%s - port %d Send set_baudrate URB returns: %i", __FUNCTION__, port->number, result); 324 325 // reset all queues 326 result = usb_control_msg( port->serial->dev, 327 usb_rcvctrlpipe(port->serial->dev, 0 ), 328 SUSBCRequest_Misc, 329 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 330 SUSBCR_MSC_ResetAllQueues, 331 0, 332 transfer_buffer, 333 0, 334 KOBIL_TIMEOUT 335 ); 336 dbg("%s - port %d Send reset_all_queues URB returns: %i", __FUNCTION__, port->number, result); 337 } 338 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || 339 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { 340 // start reading (Adapter B 'cause PNP string) 341 result = usb_submit_urb( port->interrupt_in_urb, GFP_ATOMIC ); 342 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); 343 } 344 345 kfree(transfer_buffer); 346 return 0; 347 } 348 349 350 static void kobil_close (struct usb_serial_port *port, struct file *filp) 351 { 352 dbg("%s - port %d", __FUNCTION__, port->number); 353 354 if (port->write_urb) { 355 usb_kill_urb(port->write_urb); 356 usb_free_urb( port->write_urb ); 357 port->write_urb = NULL; 358 } 359 if (port->interrupt_in_urb) 360 usb_kill_urb(port->interrupt_in_urb); 361 } 362 363 364 static void kobil_read_int_callback( struct urb *purb, struct pt_regs *regs) 365 { 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 = kzalloc((3 * purb->actual_length + 10) * sizeof(char), GFP_KERNEL); 385 if (! dbg_data) { 386 return; 387 } 388 for (i = 0; i < purb->actual_length; i++) { 389 sprintf(dbg_data +3*i, "%02X ", data[i]); 390 } 391 dbg(" <-- %s", dbg_data ); 392 kfree(dbg_data); 393 */ 394 // END DEBUG 395 396 tty_buffer_request_room(tty, purb->actual_length); 397 tty_insert_flip_string(tty, data, purb->actual_length); 398 tty_flip_buffer_push(tty); 399 } 400 401 // someone sets the dev to 0 if the close method has been called 402 port->interrupt_in_urb->dev = port->serial->dev; 403 404 result = usb_submit_urb( port->interrupt_in_urb, GFP_ATOMIC ); 405 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); 406 } 407 408 409 static void kobil_write_callback( struct urb *purb, struct pt_regs *regs ) 410 { 411 } 412 413 414 static int kobil_write (struct usb_serial_port *port, 415 const unsigned char *buf, int count) 416 { 417 int length = 0; 418 int result = 0; 419 int todo = 0; 420 struct kobil_private * priv; 421 422 if (count == 0) { 423 dbg("%s - port %d write request of 0 bytes", __FUNCTION__, port->number); 424 return 0; 425 } 426 427 priv = usb_get_serial_port_data(port); 428 429 if (count > (KOBIL_BUF_LENGTH - priv->filled)) { 430 dbg("%s - port %d Error: write request bigger than buffer size", __FUNCTION__, port->number); 431 return -ENOMEM; 432 } 433 434 // Copy data to buffer 435 memcpy (priv->buf + priv->filled, buf, count); 436 437 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, priv->buf + priv->filled); 438 439 priv->filled = priv->filled + count; 440 441 442 // only send complete block. TWIN, KAAN SIM and adapter K use the same protocol. 443 if ( ((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) || 444 ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4))) ) { 445 446 // stop reading (except TWIN and KAAN SIM) 447 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) 448 usb_kill_urb(port->interrupt_in_urb); 449 450 todo = priv->filled - priv->cur_pos; 451 452 while(todo > 0) { 453 // max 8 byte in one urb (endpoint size) 454 length = (todo < 8) ? todo : 8; 455 // copy data to transfer buffer 456 memcpy(port->write_urb->transfer_buffer, priv->buf + priv->cur_pos, length ); 457 usb_fill_int_urb( port->write_urb, 458 port->serial->dev, 459 usb_sndintpipe(port->serial->dev, priv->write_int_endpoint_address), 460 port->write_urb->transfer_buffer, 461 length, 462 kobil_write_callback, 463 port, 464 8 465 ); 466 467 priv->cur_pos = priv->cur_pos + length; 468 result = usb_submit_urb( port->write_urb, GFP_NOIO ); 469 dbg("%s - port %d Send write URB returns: %i", __FUNCTION__, port->number, result); 470 todo = priv->filled - priv->cur_pos; 471 472 if (todo > 0) { 473 msleep(24); 474 } 475 476 } // end while 477 478 priv->filled = 0; 479 priv->cur_pos = 0; 480 481 // someone sets the dev to 0 if the close method has been called 482 port->interrupt_in_urb->dev = port->serial->dev; 483 484 // start reading (except TWIN and KAAN SIM) 485 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) { 486 // someone sets the dev to 0 if the close method has been called 487 port->interrupt_in_urb->dev = port->serial->dev; 488 489 result = usb_submit_urb( port->interrupt_in_urb, GFP_NOIO ); 490 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); 491 } 492 } 493 return count; 494 } 495 496 497 static int kobil_write_room (struct usb_serial_port *port) 498 { 499 //dbg("%s - port %d", __FUNCTION__, port->number); 500 return 8; 501 } 502 503 504 static int kobil_tiocmget(struct usb_serial_port *port, struct file *file) 505 { 506 struct kobil_private * priv; 507 int result; 508 unsigned char *transfer_buffer; 509 int transfer_buffer_length = 8; 510 511 priv = usb_get_serial_port_data(port); 512 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) { 513 // This device doesn't support ioctl calls 514 return -EINVAL; 515 } 516 517 // allocate memory for transfer buffer 518 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 519 if (!transfer_buffer) { 520 return -ENOMEM; 521 } 522 523 result = usb_control_msg( port->serial->dev, 524 usb_rcvctrlpipe(port->serial->dev, 0 ), 525 SUSBCRequest_GetStatusLineState, 526 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, 527 0, 528 0, 529 transfer_buffer, 530 transfer_buffer_length, 531 KOBIL_TIMEOUT); 532 533 dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x", 534 __FUNCTION__, port->number, result, transfer_buffer[0]); 535 536 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) { 537 priv->line_state |= TIOCM_DSR; 538 } else { 539 priv->line_state &= ~TIOCM_DSR; 540 } 541 542 kfree(transfer_buffer); 543 return priv->line_state; 544 } 545 546 static int kobil_tiocmset(struct usb_serial_port *port, struct file *file, 547 unsigned int set, unsigned int clear) 548 { 549 struct kobil_private * priv; 550 int result; 551 int dtr = 0; 552 int rts = 0; 553 unsigned char *transfer_buffer; 554 int transfer_buffer_length = 8; 555 556 priv = usb_get_serial_port_data(port); 557 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) { 558 // This device doesn't support ioctl calls 559 return -EINVAL; 560 } 561 562 // allocate memory for transfer buffer 563 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); 564 if (! transfer_buffer) { 565 return -ENOMEM; 566 } 567 568 if (set & TIOCM_RTS) 569 rts = 1; 570 if (set & TIOCM_DTR) 571 dtr = 1; 572 if (clear & TIOCM_RTS) 573 rts = 0; 574 if (clear & TIOCM_DTR) 575 dtr = 0; 576 577 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) { 578 if (dtr != 0) 579 dbg("%s - port %d Setting DTR", __FUNCTION__, port->number); 580 else 581 dbg("%s - port %d Clearing DTR", __FUNCTION__, port->number); 582 result = usb_control_msg( port->serial->dev, 583 usb_rcvctrlpipe(port->serial->dev, 0 ), 584 SUSBCRequest_SetStatusLinesOrQueues, 585 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 586 ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR), 587 0, 588 transfer_buffer, 589 0, 590 KOBIL_TIMEOUT); 591 } else { 592 if (rts != 0) 593 dbg("%s - port %d Setting RTS", __FUNCTION__, port->number); 594 else 595 dbg("%s - port %d Clearing RTS", __FUNCTION__, port->number); 596 result = usb_control_msg( port->serial->dev, 597 usb_rcvctrlpipe(port->serial->dev, 0 ), 598 SUSBCRequest_SetStatusLinesOrQueues, 599 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 600 ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS), 601 0, 602 transfer_buffer, 603 0, 604 KOBIL_TIMEOUT); 605 } 606 dbg("%s - port %d Send set_status_line URB returns: %i", __FUNCTION__, port->number, result); 607 kfree(transfer_buffer); 608 return (result < 0) ? result : 0; 609 } 610 611 612 static int kobil_ioctl(struct usb_serial_port *port, struct file *file, 613 unsigned int cmd, unsigned long arg) 614 { 615 struct kobil_private * priv; 616 int result; 617 unsigned short urb_val = 0; 618 unsigned char *transfer_buffer; 619 int transfer_buffer_length = 8; 620 char *settings; 621 void __user *user_arg = (void __user *)arg; 622 623 priv = usb_get_serial_port_data(port); 624 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) { 625 // This device doesn't support ioctl calls 626 return 0; 627 } 628 629 switch (cmd) { 630 case TCGETS: // 0x5401 631 if (!access_ok(VERIFY_WRITE, user_arg, sizeof(struct termios))) { 632 dbg("%s - port %d Error in access_ok", __FUNCTION__, port->number); 633 return -EFAULT; 634 } 635 if (kernel_termios_to_user_termios((struct termios __user *)arg, 636 &priv->internal_termios)) 637 return -EFAULT; 638 return 0; 639 640 case TCSETS: // 0x5402 641 if (!(port->tty->termios)) { 642 dbg("%s - port %d Error: port->tty->termios is NULL", __FUNCTION__, port->number); 643 return -ENOTTY; 644 } 645 if (!access_ok(VERIFY_READ, user_arg, sizeof(struct termios))) { 646 dbg("%s - port %d Error in access_ok", __FUNCTION__, port->number); 647 return -EFAULT; 648 } 649 if (user_termios_to_kernel_termios(&priv->internal_termios, 650 (struct termios __user *)arg)) 651 return -EFAULT; 652 653 settings = kzalloc(50, GFP_KERNEL); 654 if (! settings) { 655 return -ENOBUFS; 656 } 657 658 switch (priv->internal_termios.c_cflag & CBAUD) { 659 case B1200: 660 urb_val = SUSBCR_SBR_1200; 661 strcat(settings, "1200 "); 662 break; 663 case B9600: 664 default: 665 urb_val = SUSBCR_SBR_9600; 666 strcat(settings, "9600 "); 667 break; 668 } 669 670 urb_val |= (priv->internal_termios.c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits : SUSBCR_SPASB_1StopBit; 671 strcat(settings, (priv->internal_termios.c_cflag & CSTOPB) ? "2 StopBits " : "1 StopBit "); 672 673 if (priv->internal_termios.c_cflag & PARENB) { 674 if (priv->internal_termios.c_cflag & PARODD) { 675 urb_val |= SUSBCR_SPASB_OddParity; 676 strcat(settings, "Odd Parity"); 677 } else { 678 urb_val |= SUSBCR_SPASB_EvenParity; 679 strcat(settings, "Even Parity"); 680 } 681 } else { 682 urb_val |= SUSBCR_SPASB_NoParity; 683 strcat(settings, "No Parity"); 684 } 685 dbg("%s - port %d setting port to: %s", __FUNCTION__, port->number, settings ); 686 687 result = usb_control_msg( port->serial->dev, 688 usb_rcvctrlpipe(port->serial->dev, 0 ), 689 SUSBCRequest_SetBaudRateParityAndStopBits, 690 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 691 urb_val, 692 0, 693 settings, 694 0, 695 KOBIL_TIMEOUT 696 ); 697 698 dbg("%s - port %d Send set_baudrate URB returns: %i", __FUNCTION__, port->number, result); 699 kfree(settings); 700 return 0; 701 702 case TCFLSH: // 0x540B 703 transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL); 704 if (! transfer_buffer) { 705 return -ENOBUFS; 706 } 707 708 result = usb_control_msg( port->serial->dev, 709 usb_rcvctrlpipe(port->serial->dev, 0 ), 710 SUSBCRequest_Misc, 711 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, 712 SUSBCR_MSC_ResetAllQueues, 713 0, 714 NULL,//transfer_buffer, 715 0, 716 KOBIL_TIMEOUT 717 ); 718 719 dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __FUNCTION__, port->number, result); 720 721 kfree(transfer_buffer); 722 return ((result < 0) ? -EFAULT : 0); 723 724 } 725 return -ENOIOCTLCMD; 726 } 727 728 729 static int __init kobil_init (void) 730 { 731 int retval; 732 retval = usb_serial_register(&kobil_device); 733 if (retval) 734 goto failed_usb_serial_register; 735 retval = usb_register(&kobil_driver); 736 if (retval) 737 goto failed_usb_register; 738 739 info(DRIVER_VERSION " " DRIVER_AUTHOR); 740 info(DRIVER_DESC); 741 742 return 0; 743 failed_usb_register: 744 usb_serial_deregister(&kobil_device); 745 failed_usb_serial_register: 746 return retval; 747 } 748 749 750 static void __exit kobil_exit (void) 751 { 752 usb_deregister (&kobil_driver); 753 usb_serial_deregister (&kobil_device); 754 } 755 756 module_init(kobil_init); 757 module_exit(kobil_exit); 758 759 MODULE_AUTHOR( DRIVER_AUTHOR ); 760 MODULE_DESCRIPTION( DRIVER_DESC ); 761 MODULE_LICENSE( "GPL" ); 762 763 module_param(debug, bool, S_IRUGO | S_IWUSR); 764 MODULE_PARM_DESC(debug, "Debug enabled or not"); 765