| 1 |
/*
|
| 2 |
ccid_usb.c: USB access routines using the libusb library
|
| 3 |
Copyright (C) 2003-2009 Ludovic Rousseau
|
| 4 |
|
| 5 |
This library is free software; you can redistribute it and/or
|
| 6 |
modify it under the terms of the GNU Lesser General Public
|
| 7 |
License as published by the Free Software Foundation; either
|
| 8 |
version 2.1 of the License, or (at your option) any later version.
|
| 9 |
|
| 10 |
This library is distributed in the hope that it will be useful,
|
| 11 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 12 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
| 13 |
Lesser General Public License for more details.
|
| 14 |
|
| 15 |
You should have received a copy of the GNU Lesser General Public License
|
| 16 |
along with this library; if not, write to the Free Software Foundation,
|
| 17 |
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
| 18 |
*/
|
| 19 |
|
| 20 |
/*
|
| 21 |
* $Id$
|
| 22 |
*/
|
| 23 |
|
| 24 |
#define __CCID_USB__
|
| 25 |
|
| 26 |
#include <stdio.h>
|
| 27 |
#include <string.h>
|
| 28 |
#include <errno.h>
|
| 29 |
# ifdef S_SPLINT_S
|
| 30 |
# include <sys/types.h>
|
| 31 |
# endif
|
| 32 |
#include <usb.h>
|
| 33 |
#include <ifdhandler.h>
|
| 34 |
|
| 35 |
#include "misc.h"
|
| 36 |
#include "ccid.h"
|
| 37 |
#include "config.h"
|
| 38 |
#include "debug.h"
|
| 39 |
#include "defs.h"
|
| 40 |
#include "utils.h"
|
| 41 |
#include "parser.h"
|
| 42 |
#include "ccid_ifdhandler.h"
|
| 43 |
|
| 44 |
|
| 45 |
/* write timeout
|
| 46 |
* we don't have to wait a long time since the card was doing nothing */
|
| 47 |
#define USB_WRITE_TIMEOUT (5 * 1000) /* 5 seconds timeout */
|
| 48 |
|
| 49 |
/*
|
| 50 |
* Proprietary USB Class (0xFF) are (or are not) accepted
|
| 51 |
* A proprietary class is used for devices released before the final CCID
|
| 52 |
* specifications were ready.
|
| 53 |
* We should not have problems with non CCID devices becasue the
|
| 54 |
* Manufacturer and Product ID are also used to identify the device */
|
| 55 |
#define ALLOW_PROPRIETARY_CLASS
|
| 56 |
|
| 57 |
#define BUS_DEVICE_STRSIZE 32
|
| 58 |
|
| 59 |
typedef struct
|
| 60 |
{
|
| 61 |
usb_dev_handle *handle;
|
| 62 |
char *dirname;
|
| 63 |
char *filename;
|
| 64 |
int interface;
|
| 65 |
|
| 66 |
/*
|
| 67 |
* Endpoints
|
| 68 |
*/
|
| 69 |
int bulk_in;
|
| 70 |
int bulk_out;
|
| 71 |
int interrupt;
|
| 72 |
|
| 73 |
/* Number of slots using the same device */
|
| 74 |
int real_nb_opened_slots;
|
| 75 |
int *nb_opened_slots;
|
| 76 |
|
| 77 |
/*
|
| 78 |
* CCID infos common to USB and serial
|
| 79 |
*/
|
| 80 |
_ccid_descriptor ccid;
|
| 81 |
|
| 82 |
} _usbDevice;
|
| 83 |
|
| 84 |
/* The _usbDevice structure must be defined before including ccid_usb.h */
|
| 85 |
#include "ccid_usb.h"
|
| 86 |
|
| 87 |
static int get_end_points(struct usb_device *dev, _usbDevice *usbdevice, int num);
|
| 88 |
int ccid_check_firmware(struct usb_device *dev);
|
| 89 |
static unsigned int *get_data_rates(unsigned int reader_index,
|
| 90 |
struct usb_device *dev, int num);
|
| 91 |
|
| 92 |
/* ne need to initialize to 0 since it is static */
|
| 93 |
static _usbDevice usbDevice[CCID_DRIVER_MAX_READERS];
|
| 94 |
|
| 95 |
#define PCSCLITE_MANUKEY_NAME "ifdVendorID"
|
| 96 |
#define PCSCLITE_PRODKEY_NAME "ifdProductID"
|
| 97 |
#define PCSCLITE_NAMEKEY_NAME "ifdFriendlyName"
|
| 98 |
|
| 99 |
struct _bogus_firmware
|
| 100 |
{
|
| 101 |
int vendor; /* idVendor */
|
| 102 |
int product; /* idProduct */
|
| 103 |
int firmware; /* bcdDevice: previous firmwares have bugs */
|
| 104 |
};
|
| 105 |
|
| 106 |
static struct _bogus_firmware Bogus_firmwares[] = {
|
| 107 |
{ 0x04e6, 0xe001, 0x0516 }, /* SCR 331 */
|
| 108 |
{ 0x04e6, 0x5111, 0x0620 }, /* SCR 331-DI */
|
| 109 |
{ 0x04e6, 0x5115, 0x0514 }, /* SCR 335 */
|
| 110 |
{ 0x04e6, 0xe003, 0x0510 }, /* SPR 532 */
|
| 111 |
{ 0x0D46, 0x3001, 0x0037 }, /* KAAN Base */
|
| 112 |
{ 0x0D46, 0x3002, 0x0037 }, /* KAAN Advanced */
|
| 113 |
{ 0x09C3, 0x0008, 0x0203 }, /* ActivCard V2 */
|
| 114 |
{ 0x0DC3, 0x1004, 0x0502 }, /* ASE IIIe USBv2 */
|
| 115 |
{ 0x0DC3, 0x1102, 0x0607 }, /* ASE IIIe KB USB */
|
| 116 |
{ 0x058F, 0x9520, 0x0102 }, /* Alcor AU9520-G */
|
| 117 |
{ 0x072F, 0x2200, 0x0206 }, /* ACS ACR122U-WB-R */
|
| 118 |
|
| 119 |
/* the firmware version is not correct since I do not have received a
|
| 120 |
* working reader yet */
|
| 121 |
#ifndef O2MICRO_OZ776_PATCH
|
| 122 |
{ 0x0b97, 0x7762, 0x0111 }, /* Oz776S */
|
| 123 |
#endif
|
| 124 |
};
|
| 125 |
|
| 126 |
/* data rates supported by the secondary slots on the GemCore Pos Pro & SIM Pro */
|
| 127 |
unsigned int SerialCustomDataRates[] = { GEMPLUS_CUSTOM_DATA_RATES, 0 };
|
| 128 |
|
| 129 |
|
| 130 |
/*****************************************************************************
|
| 131 |
*
|
| 132 |
* OpenUSB
|
| 133 |
*
|
| 134 |
****************************************************************************/
|
| 135 |
status_t OpenUSB(unsigned int reader_index, /*@unused@*/ int Channel)
|
| 136 |
{
|
| 137 |
return OpenUSBByName(reader_index, NULL);
|
| 138 |
} /* OpenUSB */
|
| 139 |
|
| 140 |
|
| 141 |
/*****************************************************************************
|
| 142 |
*
|
| 143 |
* OpenUSBByName
|
| 144 |
*
|
| 145 |
****************************************************************************/
|
| 146 |
status_t OpenUSBByName(unsigned int reader_index, /*@null@*/ char *device)
|
| 147 |
{
|
| 148 |
static struct usb_bus *busses = NULL;
|
| 149 |
int alias = 0;
|
| 150 |
struct usb_bus *bus;
|
| 151 |
struct usb_dev_handle *dev_handle;
|
| 152 |
char keyValue[TOKEN_MAX_VALUE_SIZE];
|
| 153 |
unsigned int vendorID, productID;
|
| 154 |
char infofile[FILENAME_MAX];
|
| 155 |
#ifndef __APPLE__
|
| 156 |
unsigned int device_vendor, device_product;
|
| 157 |
#endif
|
| 158 |
char *dirname = NULL, *filename = NULL;
|
| 159 |
int interface_number = -1;
|
| 160 |
static int previous_reader_index = -1;
|
| 161 |
|
| 162 |
DEBUG_COMM3("Reader index: %X, Device: %s", reader_index, device);
|
| 163 |
|
| 164 |
#ifndef __APPLE__
|
| 165 |
/* device name specified */
|
| 166 |
if (device)
|
| 167 |
{
|
| 168 |
/* format: usb:%04x/%04x, vendor, product */
|
| 169 |
if (strncmp("usb:", device, 4) != 0)
|
| 170 |
{
|
| 171 |
DEBUG_CRITICAL2("device name does not start with \"usb:\": %s",
|
| 172 |
device);
|
| 173 |
return STATUS_UNSUCCESSFUL;
|
| 174 |
}
|
| 175 |
|
| 176 |
if (sscanf(device, "usb:%x/%x", &device_vendor, &device_product) != 2)
|
| 177 |
{
|
| 178 |
DEBUG_CRITICAL2("device name can't be parsed: %s", device);
|
| 179 |
return STATUS_UNSUCCESSFUL;
|
| 180 |
}
|
| 181 |
|
| 182 |
/* format usb:%04x/%04x:libusb:%s
|
| 183 |
* with %s set to %s:%s, dirname, filename */
|
| 184 |
if ((dirname = strstr(device, "libusb:")) != NULL)
|
| 185 |
{
|
| 186 |
/* dirname points to the first char after libusb: */
|
| 187 |
dirname += strlen("libusb:");
|
| 188 |
|
| 189 |
/* search the : (separation) char */
|
| 190 |
filename = strchr(dirname, ':');
|
| 191 |
|
| 192 |
if (filename)
|
| 193 |
{
|
| 194 |
/* end the dirname string */
|
| 195 |
*filename = '\0';
|
| 196 |
|
| 197 |
/* filename points to the first char after : */
|
| 198 |
filename++;
|
| 199 |
}
|
| 200 |
else
|
| 201 |
{
|
| 202 |
/* parse failed */
|
| 203 |
dirname = NULL;
|
| 204 |
|
| 205 |
DEBUG_CRITICAL2("can't parse using libusb scheme: %s", device);
|
| 206 |
}
|
| 207 |
}
|
| 208 |
|
| 209 |
/* format usb:%04x/%04x:libhal:%s
|
| 210 |
* with %s set to
|
| 211 |
* /org/freedesktop/Hal/devices/usb_device_VID_PID_SERIAL_ifX
|
| 212 |
* VID is VendorID
|
| 213 |
* PID is ProductID
|
| 214 |
* SERIAL is device serial number
|
| 215 |
* X is the interface number
|
| 216 |
*/
|
| 217 |
if ((dirname = strstr(device, "libhal:")) != NULL)
|
| 218 |
{
|
| 219 |
char *p;
|
| 220 |
|
| 221 |
#define HAL_HEADER "usb_device_"
|
| 222 |
|
| 223 |
/* parse the hal string */
|
| 224 |
if (
|
| 225 |
/* search the last '/' char */
|
| 226 |
(p = strrchr(dirname, '/'))
|
| 227 |
|
| 228 |
/* if the string starts with "usb_device_" we continue */
|
| 229 |
&& (0 == strncmp(++p, HAL_HEADER, sizeof(HAL_HEADER)-1))
|
| 230 |
/* skip the HAL header */
|
| 231 |
&& (p += sizeof(HAL_HEADER)-1)
|
| 232 |
|
| 233 |
/* search the '_' before PID */
|
| 234 |
&& (p = strchr(++p, '_'))
|
| 235 |
|
| 236 |
/* search the '_' before SERIAL */
|
| 237 |
&& (p = strchr(++p, '_'))
|
| 238 |
|
| 239 |
/* search the '_' before ifX */
|
| 240 |
&& (p = strchr(++p, '_'))
|
| 241 |
&& (0 == strncmp(++p, "if", 2))
|
| 242 |
)
|
| 243 |
{
|
| 244 |
/* terminate the serial number C-string */
|
| 245 |
*(p-1) = '\0';
|
| 246 |
|
| 247 |
/* convert the interface number */
|
| 248 |
interface_number = atoi(p+2);
|
| 249 |
}
|
| 250 |
else
|
| 251 |
DEBUG_CRITICAL2("can't parse using libhal scheme: %s", device);
|
| 252 |
|
| 253 |
/* dirname was just a temporary variable */
|
| 254 |
dirname = NULL;
|
| 255 |
}
|
| 256 |
}
|
| 257 |
#endif
|
| 258 |
|
| 259 |
if (busses == NULL)
|
| 260 |
usb_init();
|
| 261 |
|
| 262 |
(void)usb_find_busses();
|
| 263 |
(void)usb_find_devices();
|
| 264 |
|
| 265 |
busses = usb_get_busses();
|
| 266 |
|
| 267 |
if (busses == NULL)
|
| 268 |
{
|
| 269 |
DEBUG_CRITICAL("No USB busses found");
|
| 270 |
return STATUS_UNSUCCESSFUL;
|
| 271 |
}
|
| 272 |
|
| 273 |
/* is the reader_index already used? */
|
| 274 |
if (usbDevice[reader_index].handle != NULL)
|
| 275 |
{
|
| 276 |
DEBUG_CRITICAL2("USB driver with index %X already in use",
|
| 277 |
reader_index);
|
| 278 |
return STATUS_UNSUCCESSFUL;
|
| 279 |
}
|
| 280 |
|
| 281 |
/* Info.plist full patch filename */
|
| 282 |
(void)snprintf(infofile, sizeof(infofile), "%s/%s/Contents/Info.plist",
|
| 283 |
PCSCLITE_HP_DROPDIR, BUNDLE);
|
| 284 |
|
| 285 |
/* general driver info */
|
| 286 |
if (!LTPBundleFindValueWithKey(infofile, "ifdManufacturerString", keyValue, 0))
|
| 287 |
{
|
| 288 |
DEBUG_INFO2("Manufacturer: %s", keyValue);
|
| 289 |
}
|
| 290 |
else
|
| 291 |
{
|
| 292 |
DEBUG_INFO2("LTPBundleFindValueWithKey error. Can't find %s?",
|
| 293 |
infofile);
|
| 294 |
return STATUS_UNSUCCESSFUL;
|
| 295 |
}
|
| 296 |
if (!LTPBundleFindValueWithKey(infofile, "ifdProductString", keyValue, 0))
|
| 297 |
{
|
| 298 |
DEBUG_INFO2("ProductString: %s", keyValue);
|
| 299 |
}
|
| 300 |
else
|
| 301 |
return STATUS_UNSUCCESSFUL;
|
| 302 |
if (!LTPBundleFindValueWithKey(infofile, "Copyright", keyValue, 0))
|
| 303 |
{
|
| 304 |
DEBUG_INFO2("Copyright: %s", keyValue);
|
| 305 |
}
|
| 306 |
else
|
| 307 |
return STATUS_UNSUCCESSFUL;
|
| 308 |
vendorID = strlen(keyValue);
|
| 309 |
alias = 0x1C;
|
| 310 |
for (; vendorID--;)
|
| 311 |
alias ^= keyValue[vendorID];
|
| 312 |
|
| 313 |
/* for any supported reader */
|
| 314 |
while (LTPBundleFindValueWithKey(infofile, PCSCLITE_MANUKEY_NAME, keyValue, alias) == 0)
|
| 315 |
{
|
| 316 |
vendorID = strtoul(keyValue, NULL, 0);
|
| 317 |
|
| 318 |
if (LTPBundleFindValueWithKey(infofile, PCSCLITE_PRODKEY_NAME, keyValue, alias))
|
| 319 |
goto end;
|
| 320 |
productID = strtoul(keyValue, NULL, 0);
|
| 321 |
|
| 322 |
if (LTPBundleFindValueWithKey(infofile, PCSCLITE_NAMEKEY_NAME, keyValue, alias))
|
| 323 |
goto end;
|
| 324 |
|
| 325 |
/* go to next supported reader for next round */
|
| 326 |
alias++;
|
| 327 |
|
| 328 |
#ifndef __APPLE__
|
| 329 |
/* the device was specified but is not the one we are trying to find */
|
| 330 |
if (device
|
| 331 |
&& (vendorID != device_vendor || productID != device_product))
|
| 332 |
continue;
|
| 333 |
#else
|
| 334 |
/* Leopard puts the friendlyname in the device argument */
|
| 335 |
if (device && strcmp(device, keyValue))
|
| 336 |
continue;
|
| 337 |
#endif
|
| 338 |
|
| 339 |
/* on any USB buses */
|
| 340 |
for (bus = busses; bus; bus = bus->next)
|
| 341 |
{
|
| 342 |
struct usb_device *dev;
|
| 343 |
|
| 344 |
/* any device on this bus */
|
| 345 |
for (dev = bus->devices; dev; dev = dev->next)
|
| 346 |
{
|
| 347 |
/* device defined by name? */
|
| 348 |
if (dirname && (strcmp(dirname, bus->dirname)
|
| 349 |
|| strcmp(filename, dev->filename)))
|
| 350 |
continue;
|
| 351 |
|
| 352 |
if (dev->descriptor.idVendor == vendorID
|
| 353 |
&& dev->descriptor.idProduct == productID)
|
| 354 |
{
|
| 355 |
int r, already_used;
|
| 356 |
struct usb_interface *usb_interface = NULL;
|
| 357 |
int interface;
|
| 358 |
int num = 0;
|
| 359 |
|
| 360 |
#ifdef USE_COMPOSITE_AS_MULTISLOT
|
| 361 |
static int static_interface = 1;
|
| 362 |
|
| 363 |
{
|
| 364 |
/* simulate a composite device as when libhal is
|
| 365 |
* used */
|
| 366 |
int readerID = (vendorID << 16) + productID;
|
| 367 |
|
| 368 |
if ((GEMALTOPROXDU == readerID)
|
| 369 |
|| (GEMALTOPROXSU == readerID))
|
| 370 |
{
|
| 371 |
if(interface_number >= 0)
|
| 372 |
{
|
| 373 |
DEBUG_CRITICAL("USE_COMPOSITE_AS_MULTISLOT can't be used with libhal");
|
| 374 |
continue;
|
| 375 |
}
|
| 376 |
|
| 377 |
/* the CCID interfaces are 1 and 2 */
|
| 378 |
interface_number = static_interface;
|
| 379 |
}
|
| 380 |
}
|
| 381 |
#endif
|
| 382 |
/* is it already opened? */
|
| 383 |
already_used = FALSE;
|
| 384 |
|
| 385 |
DEBUG_COMM3("Checking device: %s/%s",
|
| 386 |
bus->dirname, dev->filename);
|
| 387 |
for (r=0; r<CCID_DRIVER_MAX_READERS; r++)
|
| 388 |
{
|
| 389 |
if (usbDevice[r].handle)
|
| 390 |
{
|
| 391 |
/* same busname, same filename */
|
| 392 |
if (strcmp(usbDevice[r].dirname, bus->dirname) == 0 && strcmp(usbDevice[r].filename, dev->filename) == 0)
|
| 393 |
already_used = TRUE;
|
| 394 |
}
|
| 395 |
}
|
| 396 |
|
| 397 |
/* this reader is already managed by us */
|
| 398 |
if (already_used)
|
| 399 |
{
|
| 400 |
if ((previous_reader_index != -1)
|
| 401 |
&& usbDevice[previous_reader_index].handle
|
| 402 |
&& (strcmp(usbDevice[previous_reader_index].dirname, bus->dirname) == 0)
|
| 403 |
&& (strcmp(usbDevice[previous_reader_index].filename, dev->filename) == 0)
|
| 404 |
&& usbDevice[previous_reader_index].ccid.bCurrentSlotIndex < usbDevice[previous_reader_index].ccid.bMaxSlotIndex)
|
| 405 |
{
|
| 406 |
/* we reuse the same device
|
| 407 |
* and the reader is multi-slot */
|
| 408 |
usbDevice[reader_index] = usbDevice[previous_reader_index];
|
| 409 |
/* the other slots do not have the same data rates */
|
| 410 |
if ((GEMCOREPOSPRO == usbDevice[reader_index].ccid.readerID)
|
| 411 |
|| (GEMCORESIMPRO == usbDevice[reader_index].ccid.readerID))
|
| 412 |
{
|
| 413 |
usbDevice[reader_index].ccid.arrayOfSupportedDataRates = SerialCustomDataRates;
|
| 414 |
usbDevice[reader_index].ccid.dwMaxDataRate = 125000;
|
| 415 |
}
|
| 416 |
|
| 417 |
*usbDevice[reader_index].nb_opened_slots += 1;
|
| 418 |
usbDevice[reader_index].ccid.bCurrentSlotIndex++;
|
| 419 |
usbDevice[reader_index].ccid.dwSlotStatus =
|
| 420 |
IFD_ICC_PRESENT;
|
| 421 |
DEBUG_INFO2("Opening slot: %d",
|
| 422 |
usbDevice[reader_index].ccid.bCurrentSlotIndex);
|
| 423 |
goto end;
|
| 424 |
}
|
| 425 |
else
|
| 426 |
{
|
| 427 |
/* if an interface number is given by HAL we
|
| 428 |
* continue with this device. */
|
| 429 |
if (-1 == interface_number)
|
| 430 |
{
|
| 431 |
DEBUG_INFO3("USB device %s/%s already in use."
|
| 432 |
" Checking next one.",
|
| 433 |
bus->dirname, dev->filename);
|
| 434 |
continue;
|
| 435 |
}
|
| 436 |
}
|
| 437 |
}
|
| 438 |
|
| 439 |
DEBUG_COMM3("Trying to open USB bus/device: %s/%s",
|
| 440 |
bus->dirname, dev->filename);
|
| 441 |
|
| 442 |
dev_handle = usb_open(dev);
|
| 443 |
if (dev_handle == NULL)
|
| 444 |
{
|
| 445 |
DEBUG_CRITICAL4("Can't usb_open(%s/%s): %s",
|
| 446 |
bus->dirname, dev->filename, strerror(errno));
|
| 447 |
|
| 448 |
continue;
|
| 449 |
}
|
| 450 |
|
| 451 |
/* now we found a free reader and we try to use it */
|
| 452 |
if (dev->config == NULL)
|
| 453 |
{
|
| 454 |
(void)usb_close(dev_handle);
|
| 455 |
DEBUG_CRITICAL3("No dev->config found for %s/%s",
|
| 456 |
bus->dirname, dev->filename);
|
| 457 |
return STATUS_UNSUCCESSFUL;
|
| 458 |
}
|
| 459 |
|
| 460 |
again:
|
| 461 |
usb_interface = get_ccid_usb_interface(dev, &num);
|
| 462 |
if (usb_interface == NULL)
|
| 463 |
{
|
| 464 |
(void)usb_close(dev_handle);
|
| 465 |
if (0 == num)
|
| 466 |
DEBUG_CRITICAL3("Can't find a CCID interface on %s/%s",
|
| 467 |
bus->dirname, dev->filename);
|
| 468 |
interface_number = -1;
|
| 469 |
continue;
|
| 470 |
}
|
| 471 |
|
| 472 |
if (usb_interface->altsetting->extralen != 54)
|
| 473 |
{
|
| 474 |
(void)usb_close(dev_handle);
|
| 475 |
DEBUG_CRITICAL4("Extra field for %s/%s has a wrong length: %d", bus->dirname, dev->filename, usb_interface->altsetting->extralen);
|
| 476 |
return STATUS_UNSUCCESSFUL;
|
| 477 |
}
|
| 478 |
|
| 479 |
interface = usb_interface->altsetting->bInterfaceNumber;
|
| 480 |
if (interface_number >= 0 && interface != interface_number)
|
| 481 |
{
|
| 482 |
/* an interface was specified and it is not the
|
| 483 |
* current one */
|
| 484 |
DEBUG_INFO3("Wrong interface for USB device %s/%s."
|
| 485 |
" Checking next one.", bus->dirname, dev->filename);
|
| 486 |
|
| 487 |
/* check for another CCID interface on the same device */
|
| 488 |
num++;
|
| 489 |
|
| 490 |
goto again;
|
| 491 |
}
|
| 492 |
|
| 493 |
if (usb_claim_interface(dev_handle, interface) < 0)
|
| 494 |
{
|
| 495 |
(void)usb_close(dev_handle);
|
| 496 |
DEBUG_CRITICAL4("Can't claim interface %s/%s: %s",
|
| 497 |
bus->dirname, dev->filename, strerror(errno));
|
| 498 |
interface_number = -1;
|
| 499 |
continue;
|
| 500 |
}
|
| 501 |
|
| 502 |
DEBUG_INFO4("Found Vendor/Product: %04X/%04X (%s)",
|
| 503 |
dev->descriptor.idVendor,
|
| 504 |
dev->descriptor.idProduct, keyValue);
|
| 505 |
DEBUG_INFO3("Using USB bus/device: %s/%s",
|
| 506 |
bus->dirname, dev->filename);
|
| 507 |
|
| 508 |
/* check for firmware bugs */
|
| 509 |
if (ccid_check_firmware(dev))
|
| 510 |
{
|
| 511 |
(void)usb_close(dev_handle);
|
| 512 |
return STATUS_UNSUCCESSFUL;
|
| 513 |
}
|
| 514 |
|
| 515 |
#ifdef USE_COMPOSITE_AS_MULTISLOT
|
| 516 |
/* use the next interface for the next "slot" */
|
| 517 |
static_interface++;
|
| 518 |
|
| 519 |
/* reset for a next reader */
|
| 520 |
if (static_interface > 2)
|
| 521 |
static_interface = 1;
|
| 522 |
#endif
|
| 523 |
|
| 524 |
/* Get Endpoints values*/
|
| 525 |
(void)get_end_points(dev, &usbDevice[reader_index], num);
|
| 526 |
|
| 527 |
/* store device information */
|
| 528 |
usbDevice[reader_index].handle = dev_handle;
|
| 529 |
usbDevice[reader_index].dirname = strdup(bus->dirname);
|
| 530 |
usbDevice[reader_index].filename = strdup(dev->filename);
|
| 531 |
usbDevice[reader_index].interface = interface;
|
| 532 |
usbDevice[reader_index].real_nb_opened_slots = 1;
|
| 533 |
usbDevice[reader_index].nb_opened_slots = &usbDevice[reader_index].real_nb_opened_slots;
|
| 534 |
|
| 535 |
/* CCID common informations */
|
| 536 |
usbDevice[reader_index].ccid.real_bSeq = 0;
|
| 537 |
usbDevice[reader_index].ccid.pbSeq = &usbDevice[reader_index].ccid.real_bSeq;
|
| 538 |
usbDevice[reader_index].ccid.readerID =
|
| 539 |
(dev->descriptor.idVendor << 16) +
|
| 540 |
dev->descriptor.idProduct;
|
| 541 |
usbDevice[reader_index].ccid.dwFeatures = dw2i(usb_interface->altsetting->extra, 40);
|
| 542 |
usbDevice[reader_index].ccid.wLcdLayout =
|
| 543 |
(usb_interface->altsetting->extra[51] << 8) +
|
| 544 |
usb_interface->altsetting->extra[50];
|
| 545 |
usbDevice[reader_index].ccid.bPINSupport = usb_interface->altsetting->extra[52];
|
| 546 |
usbDevice[reader_index].ccid.dwMaxCCIDMessageLength = dw2i(usb_interface->altsetting->extra, 44);
|
| 547 |
usbDevice[reader_index].ccid.dwMaxIFSD = dw2i(usb_interface->altsetting->extra, 28);
|
| 548 |
usbDevice[reader_index].ccid.dwDefaultClock = dw2i(usb_interface->altsetting->extra, 10);
|
| 549 |
usbDevice[reader_index].ccid.dwMaxDataRate = dw2i(usb_interface->altsetting->extra, 23);
|
| 550 |
usbDevice[reader_index].ccid.bMaxSlotIndex = usb_interface->altsetting->extra[4];
|
| 551 |
usbDevice[reader_index].ccid.bCurrentSlotIndex = 0;
|
| 552 |
usbDevice[reader_index].ccid.readTimeout = DEFAULT_COM_READ_TIMEOUT;
|
| 553 |
usbDevice[reader_index].ccid.arrayOfSupportedDataRates = get_data_rates(reader_index, dev, num);
|
| 554 |
usbDevice[reader_index].ccid.bInterfaceProtocol = usb_interface->altsetting->bInterfaceProtocol;
|
| 555 |
usbDevice[reader_index].ccid.bNumEndpoints = usb_interface->altsetting->bNumEndpoints;
|
| 556 |
usbDevice[reader_index].ccid.dwSlotStatus = IFD_ICC_PRESENT;
|
| 557 |
usbDevice[reader_index].ccid.bVoltageSupport = usb_interface->altsetting->extra[5];
|
| 558 |
goto end;
|
| 559 |
}
|
| 560 |
}
|
| 561 |
}
|
| 562 |
}
|
| 563 |
end:
|
| 564 |
if (usbDevice[reader_index].handle == NULL)
|
| 565 |
return STATUS_UNSUCCESSFUL;
|
| 566 |
|
| 567 |
/* memorise the current reader_index so we can detect
|
| 568 |
* a new OpenUSBByName on a multi slot reader */
|
| 569 |
previous_reader_index = reader_index;
|
| 570 |
|
| 571 |
return STATUS_SUCCESS;
|
| 572 |
} /* OpenUSBByName */
|
| 573 |
|
| 574 |
|
| 575 |
/*****************************************************************************
|
| 576 |
*
|
| 577 |
* WriteUSB
|
| 578 |
*
|
| 579 |
****************************************************************************/
|
| 580 |
status_t WriteUSB(unsigned int reader_index, unsigned int length,
|
| 581 |
unsigned char *buffer)
|
| 582 |
{
|
| 583 |
int rv;
|
| 584 |
char debug_header[] = "-> 121234 ";
|
| 585 |
|
| 586 |
(void)snprintf(debug_header, sizeof(debug_header), "-> %06X ",
|
| 587 |
(int)reader_index);
|
| 588 |
|
| 589 |
DEBUG_XXD(debug_header, buffer, length);
|
| 590 |
|
| 591 |
rv = usb_bulk_write(usbDevice[reader_index].handle,
|
| 592 |
usbDevice[reader_index].bulk_out, (char *)buffer, length,
|
| 593 |
USB_WRITE_TIMEOUT);
|
| 594 |
|
| 595 |
if (rv < 0)
|
| 596 |
{
|
| 597 |
DEBUG_CRITICAL4("usb_bulk_write(%s/%s): %s",
|
| 598 |
usbDevice[reader_index].dirname, usbDevice[reader_index].filename,
|
| 599 |
strerror(errno));
|
| 600 |
|
| 601 |
if (ENODEV == errno)
|
| 602 |
return STATUS_NO_SUCH_DEVICE;
|
| 603 |
|
| 604 |
return STATUS_UNSUCCESSFUL;
|
| 605 |
}
|
| 606 |
|
| 607 |
return STATUS_SUCCESS;
|
| 608 |
} /* WriteUSB */
|
| 609 |
|
| 610 |
|
| 611 |
/*****************************************************************************
|
| 612 |
*
|
| 613 |
* ReadUSB
|
| 614 |
*
|
| 615 |
****************************************************************************/
|
| 616 |
status_t ReadUSB(unsigned int reader_index, unsigned int * length,
|
| 617 |
unsigned char *buffer)
|
| 618 |
{
|
| 619 |
int rv;
|
| 620 |
char debug_header[] = "<- 121234 ";
|
| 621 |
_ccid_descriptor *ccid_descriptor = get_ccid_descriptor(reader_index);
|
| 622 |
int duplicate_frame = 0;
|
| 623 |
|
| 624 |
read_again:
|
| 625 |
(void)snprintf(debug_header, sizeof(debug_header), "<- %06X ",
|
| 626 |
(int)reader_index);
|
| 627 |
|
| 628 |
rv = usb_bulk_read(usbDevice[reader_index].handle,
|
| 629 |
usbDevice[reader_index].bulk_in, (char *)buffer, *length,
|
| 630 |
usbDevice[reader_index].ccid.readTimeout * 1000);
|
| 631 |
|
| 632 |
if (rv < 0)
|
| 633 |
{
|
| 634 |
*length = 0;
|
| 635 |
DEBUG_CRITICAL4("usb_bulk_read(%s/%s): %s",
|
| 636 |
usbDevice[reader_index].dirname, usbDevice[reader_index].filename,
|
| 637 |
strerror(errno));
|
| 638 |
|
| 639 |
if (ENODEV == errno)
|
| 640 |
return STATUS_NO_SUCH_DEVICE;
|
| 641 |
|
| 642 |
return STATUS_UNSUCCESSFUL;
|
| 643 |
}
|
| 644 |
|
| 645 |
*length = rv;
|
| 646 |
|
| 647 |
DEBUG_XXD(debug_header, buffer, *length);
|
| 648 |
|
| 649 |
#define BSEQ_OFFSET 6
|
| 650 |
if ((*length >= BSEQ_OFFSET)
|
| 651 |
&& (buffer[BSEQ_OFFSET] < *ccid_descriptor->pbSeq -1))
|
| 652 |
{
|
| 653 |
duplicate_frame++;
|
| 654 |
if (duplicate_frame > 10)
|
| 655 |
{
|
| 656 |
DEBUG_CRITICAL("Too many duplicate frame detected");
|
| 657 |
return STATUS_UNSUCCESSFUL;
|
| 658 |
}
|
| 659 |
DEBUG_INFO("Duplicate frame detected");
|
| 660 |
goto read_again;
|
| 661 |
}
|
| 662 |
|
| 663 |
return STATUS_SUCCESS;
|
| 664 |
} /* ReadUSB */
|
| 665 |
|
| 666 |
|
| 667 |
/*****************************************************************************
|
| 668 |
*
|
| 669 |
* CloseUSB
|
| 670 |
*
|
| 671 |
****************************************************************************/
|
| 672 |
status_t CloseUSB(unsigned int reader_index)
|
| 673 |
{
|
| 674 |
/* device not opened */
|
| 675 |
if (usbDevice[reader_index].handle == NULL)
|
| 676 |
return STATUS_UNSUCCESSFUL;
|
| 677 |
|
| 678 |
DEBUG_COMM3("Closing USB device: %s/%s",
|
| 679 |
usbDevice[reader_index].dirname,
|
| 680 |
usbDevice[reader_index].filename);
|
| 681 |
|
| 682 |
if (usbDevice[reader_index].ccid.arrayOfSupportedDataRates
|
| 683 |
&& (usbDevice[reader_index].ccid.bCurrentSlotIndex == 0))
|
| 684 |
{
|
| 685 |
free(usbDevice[reader_index].ccid.arrayOfSupportedDataRates);
|
| 686 |
usbDevice[reader_index].ccid.arrayOfSupportedDataRates = NULL;
|
| 687 |
}
|
| 688 |
|
| 689 |
/* one slot closed */
|
| 690 |
(*usbDevice[reader_index].nb_opened_slots)--;
|
| 691 |
|
| 692 |
/* release the allocated ressources for the last slot only */
|
| 693 |
if (0 == *usbDevice[reader_index].nb_opened_slots)
|
| 694 |
{
|
| 695 |
DEBUG_COMM("Last slot closed. Release resources");
|
| 696 |
|
| 697 |
/* reset so that bSeq starts at 0 again */
|
| 698 |
if (DriverOptions & DRIVER_OPTION_RESET_ON_CLOSE)
|
| 699 |
(void)usb_reset(usbDevice[reader_index].handle);
|
| 700 |
|
| 701 |
(void)usb_release_interface(usbDevice[reader_index].handle,
|
| 702 |
usbDevice[reader_index].interface);
|
| 703 |
(void)usb_close(usbDevice[reader_index].handle);
|
| 704 |
|
| 705 |
free(usbDevice[reader_index].dirname);
|
| 706 |
free(usbDevice[reader_index].filename);
|
| 707 |
}
|
| 708 |
|
| 709 |
/* mark the resource unused */
|
| 710 |
usbDevice[reader_index].handle = NULL;
|
| 711 |
usbDevice[reader_index].dirname = NULL;
|
| 712 |
usbDevice[reader_index].filename = NULL;
|
| 713 |
usbDevice[reader_index].interface = 0;
|
| 714 |
|
| 715 |
return STATUS_SUCCESS;
|
| 716 |
} /* CloseUSB */
|
| 717 |
|
| 718 |
|
| 719 |
/*****************************************************************************
|
| 720 |
*
|
| 721 |
* get_ccid_descriptor
|
| 722 |
*
|
| 723 |
****************************************************************************/
|
| 724 |
_ccid_descriptor *get_ccid_descriptor(unsigned int reader_index)
|
| 725 |
{
|
| 726 |
return &usbDevice[reader_index].ccid;
|
| 727 |
} /* get_ccid_descriptor */
|
| 728 |
|
| 729 |
|
| 730 |
/*****************************************************************************
|
| 731 |
*
|
| 732 |
* get_end_points
|
| 733 |
*
|
| 734 |
****************************************************************************/
|
| 735 |
static int get_end_points(struct usb_device *dev, _usbDevice *usbdevice,
|
| 736 |
int num)
|
| 737 |
{
|
| 738 |
int i;
|
| 739 |
int bEndpointAddress;
|
| 740 |
struct usb_interface *usb_interface = get_ccid_usb_interface(dev, &num);
|
| 741 |
|
| 742 |
/*
|
| 743 |
* 3 Endpoints maximum: Interrupt In, Bulk In, Bulk Out
|
| 744 |
*/
|
| 745 |
for (i=0; i<usb_interface->altsetting->bNumEndpoints; i++)
|
| 746 |
{
|
| 747 |
/* interrupt end point (if available) */
|
| 748 |
if (usb_interface->altsetting->endpoint[i].bmAttributes == USB_ENDPOINT_TYPE_INTERRUPT)
|
| 749 |
{
|
| 750 |
usbdevice->interrupt = usb_interface->altsetting->endpoint[i].bEndpointAddress;
|
| 751 |
continue;
|
| 752 |
}
|
| 753 |
|
| 754 |
if (usb_interface->altsetting->endpoint[i].bmAttributes != USB_ENDPOINT_TYPE_BULK)
|
| 755 |
continue;
|
| 756 |
|
| 757 |
bEndpointAddress = usb_interface->altsetting->endpoint[i].bEndpointAddress;
|
| 758 |
|
| 759 |
if ((bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_ENDPOINT_IN)
|
| 760 |
usbdevice->bulk_in = bEndpointAddress;
|
| 761 |
|
| 762 |
if ((bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_ENDPOINT_OUT)
|
| 763 |
usbdevice->bulk_out = bEndpointAddress;
|
| 764 |
}
|
| 765 |
|
| 766 |
return 0;
|
| 767 |
} /* get_end_points */
|
| 768 |
|
| 769 |
|
| 770 |
/*****************************************************************************
|
| 771 |
*
|
| 772 |
* get_ccid_usb_interface
|
| 773 |
*
|
| 774 |
****************************************************************************/
|
| 775 |
/*@null@*/ EXTERNAL struct usb_interface * get_ccid_usb_interface(
|
| 776 |
struct usb_device *dev, int *num)
|
| 777 |
{
|
| 778 |
struct usb_interface *usb_interface = NULL;
|
| 779 |
int i;
|
| 780 |
#ifdef O2MICRO_OZ776_PATCH
|
| 781 |
int readerID;
|
| 782 |
#endif
|
| 783 |
|
| 784 |
/* if multiple interfaces use the first one with CCID class type */
|
| 785 |
for (i = *num; dev->config && i<dev->config->bNumInterfaces; i++)
|
| 786 |
{
|
| 787 |
/* CCID Class? */
|
| 788 |
if (dev->config->interface[i].altsetting->bInterfaceClass == 0xb
|
| 789 |
#ifdef ALLOW_PROPRIETARY_CLASS
|
| 790 |
|| dev->config->interface[i].altsetting->bInterfaceClass == 0xff
|
| 791 |
#endif
|
| 792 |
)
|
| 793 |
{
|
| 794 |
usb_interface = &dev->config->interface[i];
|
| 795 |
/* store the interface number for further reference */
|
| 796 |
*num = i;
|
| 797 |
break;
|
| 798 |
}
|
| 799 |
}
|
| 800 |
|
| 801 |
#ifdef O2MICRO_OZ776_PATCH
|
| 802 |
readerID = (dev->descriptor.idVendor << 16) + dev->descriptor.idProduct;
|
| 803 |
if (usb_interface != NULL
|
| 804 |
&& ((OZ776 == readerID) || (OZ776_7772 == readerID)
|
| 805 |
|| (REINER_SCT == readerID) || (BLUDRIVEII_CCID == readerID))
|
| 806 |
&& (0 == usb_interface->altsetting->extralen)) /* this is the bug */
|
| 807 |
{
|
| 808 |
int j;
|
| 809 |
for (j=0; j<usb_interface->altsetting->bNumEndpoints; j++)
|
| 810 |
{
|
| 811 |
/* find the extra[] array */
|
| 812 |
if (54 == usb_interface->altsetting->endpoint[j].extralen)
|
| 813 |
{
|
| 814 |
/* get the extra[] from the endpoint */
|
| 815 |
usb_interface->altsetting->extralen = 54;
|
| 816 |
usb_interface->altsetting->extra =
|
| 817 |
usb_interface->altsetting->endpoint[j].extra;
|
| 818 |
/* avoid double free on close */
|
| 819 |
usb_interface->altsetting->endpoint[j].extra = NULL;
|
| 820 |
usb_interface->altsetting->endpoint[j].extralen = 0;
|
| 821 |
break;
|
| 822 |
}
|
| 823 |
}
|
| 824 |
}
|
| 825 |
#endif
|
| 826 |
|
| 827 |
return usb_interface;
|
| 828 |
} /* get_ccid_usb_interface */
|
| 829 |
|
| 830 |
|
| 831 |
/*****************************************************************************
|
| 832 |
*
|
| 833 |
* ccid_check_firmware
|
| 834 |
*
|
| 835 |
****************************************************************************/
|
| 836 |
int ccid_check_firmware(struct usb_device *dev)
|
| 837 |
{
|
| 838 |
unsigned int i;
|
| 839 |
|
| 840 |
for (i=0; i<sizeof(Bogus_firmwares)/sizeof(Bogus_firmwares[0]); i++)
|
| 841 |
{
|
| 842 |
if (dev->descriptor.idVendor != Bogus_firmwares[i].vendor)
|
| 843 |
continue;
|
| 844 |
|
| 845 |
if (dev->descriptor.idProduct != Bogus_firmwares[i].product)
|
| 846 |
continue;
|
| 847 |
|
| 848 |
/* firmware too old and buggy */
|
| 849 |
if (dev->descriptor.bcdDevice < Bogus_firmwares[i].firmware)
|
| 850 |
{
|
| 851 |
if (DriverOptions & DRIVER_OPTION_USE_BOGUS_FIRMWARE)
|
| 852 |
{
|
| 853 |
DEBUG_INFO3("Firmware (%X.%02X) is bogus! but you choosed to use it",
|
| 854 |
dev->descriptor.bcdDevice >> 8,
|
| 855 |
dev->descriptor.bcdDevice & 0xFF);
|
| 856 |
return FALSE;
|
| 857 |
}
|
| 858 |
else
|
| 859 |
{
|
| 860 |
DEBUG_CRITICAL3("Firmware (%X.%02X) is bogus! Upgrade the reader firmware or get a new reader.",
|
| 861 |
dev->descriptor.bcdDevice >> 8,
|
| 862 |
dev->descriptor.bcdDevice & 0xFF);
|
| 863 |
return TRUE;
|
| 864 |
}
|
| 865 |
}
|
| 866 |
}
|
| 867 |
|
| 868 |
/* by default the firmware is not bogus */
|
| 869 |
return FALSE;
|
| 870 |
} /* ccid_check_firmware */
|
| 871 |
|
| 872 |
|
| 873 |
/*****************************************************************************
|
| 874 |
*
|
| 875 |
* get_data_rates
|
| 876 |
*
|
| 877 |
****************************************************************************/
|
| 878 |
static unsigned int *get_data_rates(unsigned int reader_index,
|
| 879 |
struct usb_device *dev, int num)
|
| 880 |
{
|
| 881 |
int n, i, len;
|
| 882 |
unsigned char buffer[256*sizeof(int)]; /* maximum is 256 records */
|
| 883 |
unsigned int *int_array;
|
| 884 |
|
| 885 |
/* See CCID 3.7.3 page 25 */
|
| 886 |
n = ControlUSB(reader_index,
|
| 887 |
0xA1, /* request type */
|
| 888 |
0x03, /* GET_DATA_RATES */
|
| 889 |
0x00, /* value */
|
| 890 |
buffer, sizeof(buffer));
|
| 891 |
|
| 892 |
/* we got an error? */
|
| 893 |
if (n <= 0)
|
| 894 |
{
|
| 895 |
DEBUG_INFO2("IFD does not support GET_DATA_RATES request: %s",
|
| 896 |
strerror(errno));
|
| 897 |
return NULL;
|
| 898 |
}
|
| 899 |
|
| 900 |
/* we got a strange value */
|
| 901 |
if (n % 4)
|
| 902 |
{
|
| 903 |
DEBUG_INFO2("Wrong GET DATA RATES size: %d", n);
|
| 904 |
return NULL;
|
| 905 |
}
|
| 906 |
|
| 907 |
/* allocate the buffer (including the end marker) */
|
| 908 |
n /= sizeof(int);
|
| 909 |
|
| 910 |
/* we do not get the expected number of data rates */
|
| 911 |
len = get_ccid_usb_interface(dev, &num)->altsetting->extra[27]; /* bNumDataRatesSupported */
|
| 912 |
if ((n != len) && len)
|
| 913 |
{
|
| 914 |
DEBUG_INFO3("Got %d data rates but was expecting %d", n, len);
|
| 915 |
|
| 916 |
/* we got more data than expected */
|
| 917 |
if (n > len)
|
| 918 |
n = len;
|
| 919 |
}
|
| 920 |
|
| 921 |
int_array = calloc(n+1, sizeof(int));
|
| 922 |
if (NULL == int_array)
|
| 923 |
{
|
| 924 |
DEBUG_CRITICAL("Memory allocation failed");
|
| 925 |
return NULL;
|
| 926 |
}
|
| 927 |
|
| 928 |
/* convert in correct endianess */
|
| 929 |
for (i=0; i<n; i++)
|
| 930 |
{
|
| 931 |
int_array[i] = dw2i(buffer, i*4);
|
| 932 |
DEBUG_INFO2("declared: %d bps", int_array[i]);
|
| 933 |
}
|
| 934 |
|
| 935 |
/* end of array marker */
|
| 936 |
int_array[i] = 0;
|
| 937 |
|
| 938 |
return int_array;
|
| 939 |
} /* get_data_rates */
|
| 940 |
|
| 941 |
|
| 942 |
/*****************************************************************************
|
| 943 |
*
|
| 944 |
* ControlUSB
|
| 945 |
*
|
| 946 |
****************************************************************************/
|
| 947 |
int ControlUSB(int reader_index, int requesttype, int request, int value,
|
| 948 |
unsigned char *bytes, unsigned int size)
|
| 949 |
{
|
| 950 |
int ret;
|
| 951 |
|
| 952 |
DEBUG_COMM2("request: 0x%02X", request);
|
| 953 |
|
| 954 |
if (0 == (requesttype & 0x80))
|
| 955 |
DEBUG_XXD("send: ", bytes, size);
|
| 956 |
|
| 957 |
ret = usb_control_msg(usbDevice[reader_index].handle, requesttype,
|
| 958 |
request, value, usbDevice[reader_index].interface, (char *)bytes, size,
|
| 959 |
usbDevice[reader_index].ccid.readTimeout * 1000);
|
| 960 |
|
| 961 |
if (requesttype & 0x80)
|
| 962 |
DEBUG_XXD("receive: ", bytes, ret);
|
| 963 |
|
| 964 |
return ret;
|
| 965 |
} /* ControlUSB */
|
| 966 |
|
| 967 |
/*****************************************************************************
|
| 968 |
*
|
| 969 |
* InterruptRead
|
| 970 |
*
|
| 971 |
*
|
| 972 |
****************************************************************************/
|
| 973 |
int InterruptRead(int reader_index)
|
| 974 |
{
|
| 975 |
int ret;
|
| 976 |
char buffer[8];
|
| 977 |
int timeout = 2*1000; /* 2 seconds */
|
| 978 |
|
| 979 |
DEBUG_PERIODIC("before");
|
| 980 |
ret = usb_interrupt_read(usbDevice[reader_index].handle,
|
| 981 |
usbDevice[reader_index].interrupt, buffer, sizeof(buffer), timeout);
|
| 982 |
DEBUG_PERIODIC2("after %d", ret);
|
| 983 |
|
| 984 |
if (ret < 0)
|
| 985 |
{
|
| 986 |
/* if usb_interrupt_read() times out we get EILSEQ or EAGAIN */
|
| 987 |
if ((errno != EILSEQ) && (errno != EAGAIN) && (errno != ENODEV) && (errno != 0))
|
| 988 |
DEBUG_COMM4("usb_interrupt_read(%s/%s): %s",
|
| 989 |
usbDevice[reader_index].dirname,
|
| 990 |
usbDevice[reader_index].filename, strerror(errno));
|
| 991 |
}
|
| 992 |
else
|
| 993 |
DEBUG_XXD("NotifySlotChange: ", buffer, ret);
|
| 994 |
|
| 995 |
return ret;
|
| 996 |
} /* InterruptRead */
|
| 997 |
|
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