git.zerfleddert.de Git - usb-driver/blob - usb-driver.c

   1 #if defined(__GNUC__) && !defined(__STRICT_ANSI__)
   2
   3 #define _GNU_SOURCE 1
   4
   5 #if defined(RTLD_NEXT)
   6 #define REAL_LIBC RTLD_NEXT
   7 #else
   8 #define REAL_LIBC ((void *) -1L)
   9 #endif
  10
  11 #include <dlfcn.h>
  12 #include <stdarg.h>
  13 #include <stdlib.h>
  14 #include <string.h>
  15 #include <unistd.h>
  16 #include <fcntl.h>
  17 #include <sys/types.h>
  18 #include <sys/stat.h>
  19 #include <sys/time.h>
  20 #include <stdio.h>
  21 #include <usb.h>
  22 #include "xilinx.h"
  23
  24 static int (*ioctl_func) (int, int, void *) = NULL;
  25 static int windrvrfd = 0;
  26 static struct usb_bus *busses = NULL;
  27 static struct usb_device *usb_cable;
  28 static unsigned long card_type;
  29
  30 #define USE_LIBUSB 1
  31
  32 void hexdump(unsigned char *buf, int len);
  33 void diff(unsigned char *buf1, unsigned char *buf2, int len);
  34
  35 int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
  36         struct header_struct* wdheader = (struct header_struct*)wdioctl;
  37         struct version_struct *version;
  38         int ret = 0;
  39
  40         if (wdheader->magic != MAGIC) {
  41                 fprintf(stderr,"!!!ERROR: magic header does not match!!!\n");
  42                 return (*ioctl_func) (fd, request, wdioctl);
  43         }
  44
  45         switch(request) {
  46                 case VERSION:
  47                         version = (struct version_struct*)(wdheader->data);
  48                         strcpy(version->version, "WinDriver no more");
  49                         version->versionul = 999;
  50                         fprintf(stderr,"faking VERSION\n");
  51                         break;
  52
  53                 case LICENSE:
  54                         fprintf(stderr,"faking LICENSE\n");
  55                         break;
  56
  57                 case CARD_REGISTER:
  58                         {
  59                                 //struct card_register* cr = (struct card_register*)(wdheader->data);
  60                                 /* Todo: LPT-Port already in use */
  61                         }
  62                         fprintf(stderr,"faking CARD_REGISTER\n");
  63                         break;
  64
  65                 case USB_TRANSFER:
  66                         fprintf(stderr,"in USB_TRANSFER");
  67                         {
  68                                 struct usb_transfer *ut = (struct usb_transfer*)(wdheader->data);
  69
  70                                 fprintf(stderr," unique: %lu, pipe: %lu, read: %lu, options: %lx, size: %lu, timeout: %lx\n", ut->dwUniqueID, ut->dwPipeNum, ut->fRead, ut->dwOptions, ut->dwBufferSize, ut->dwTimeout);
  71                                 fprintf(stderr,"setup packet: ");
  72                                 hexdump(ut->SetupPacket, 8);
  73                                 fprintf(stderr,"\n");
  74                                 if (!ut->fRead && ut->dwBufferSize)
  75                                 {
  76                                         hexdump(ut->pBuffer, ut->dwBufferSize);
  77                                         fprintf(stderr,"\n");
  78                                 }
  79
  80 #ifndef USE_LIBUSB
  81                                 ret = (*ioctl_func) (fd, request, wdioctl);
  82 #endif
  83
  84                                 fprintf(stderr,"Transferred: %lu (%s)\n",ut->dwBytesTransferred, (ut->fRead?"read":"write"));
  85                                 if (ut->fRead && ut->dwBytesTransferred)
  86                                 {
  87                                         fprintf(stderr,"Read: ");
  88                                         hexdump(ut->pBuffer, ut->dwBytesTransferred);
  89                                 }
  90                                 fprintf(stderr,"\n");
  91                         }
  92                         break;
  93
  94                 case INT_ENABLE:
  95                         fprintf(stderr,"faking INT_ENABLE");
  96                         {
  97                                 struct interrupt *it = (struct interrupt*)(wdheader->data);
  98
  99                                 fprintf(stderr,"Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds, it->fEnableOk, it->dwCounter, it->dwLost, it->fStopped);
 100
 101                                 it->fEnableOk = 1;
 102                                 //ret = (*ioctl_func) (fd, request, wdioctl);
 103                         }
 104
 105                         break;
 106
 107                 case INT_DISABLE:
 108                         fprintf(stderr,"INT_DISABLE\n");
 109                         {
 110                                 struct interrupt *it = (struct interrupt*)(wdheader->data);
 111
 112                                 fprintf(stderr,"Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds, it->fEnableOk, it->dwCounter, it->dwLost, it->fStopped);
 113                                 //it->dwCounter = 0;
 114                                 //it->fStopped = 1;
 115 #ifndef USE_LIBUSB
 116                                 ret = (*ioctl_func) (fd, request, wdioctl);
 117 #endif
 118                                 fprintf(stderr,"Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds, it->fEnableOk, it->dwCounter, it->dwLost, it->fStopped);
 119                         }
 120                         break;
 121
 122                 case USB_SET_INTERFACE:
 123                         fprintf(stderr,"USB_SET_INTERFACE\n");
 124                         {
 125                                 struct usb_set_interface *usi = (struct usb_set_interface*)(wdheader->data);
 126
 127                                 fprintf(stderr,"unique: %lu, interfacenum: %lu, alternatesetting: %lu, options: %lx\n", usi->dwUniqueID, usi->dwInterfaceNum, usi->dwAlternateSetting, usi->dwOptions);
 128 #ifndef USE_LIBUSB
 129                                 ret = (*ioctl_func) (fd, request, wdioctl);
 130 #endif
 131                         }
 132                         break;
 133
 134                 case USB_GET_DEVICE_DATA:
 135                         fprintf(stderr,"USB_GET_DEVICE_DATA\n");
 136                         {
 137                                 struct usb_get_device_data *ugdd = (struct usb_get_device_data*)(wdheader->data);
 138                                 int pSize;
 139
 140                                 fprintf(stderr, "uniqe: %lu, bytes: %lu, options: %lx\n", ugdd->dwUniqueID, ugdd->dwBytes, ugdd->dwOptions);
 141                                 pSize = ugdd->dwBytes;
 142 #ifndef USE_LIBUSB
 143                                 ret = (*ioctl_func) (fd, request, wdioctl);
 144 #endif
 145                                 if (pSize) {
 146                                         hexdump(ugdd->pBuf, pSize);
 147                                         fprintf(stderr, "\n");
 148                                 }
 149                         }
 150                         break;
 151
 152                 case EVENT_REGISTER:
 153                         fprintf(stderr,"EVENT_REGISTER\n");
 154                         {
 155                                 struct event *e = (struct event*)(wdheader->data);
 156                                 struct usb_bus *bus;
 157                                 int i;
 158
 159                                 fprintf(stderr,"handle: %lu, action: %lu, status: %lu, eventid: %lu, cardtype: %lu, kplug: %lu, options: %lu, dev: %lx:%lx, unique: %lu, ver: %lu, nummatch: %lu\n", e->handle, e->dwAction, e->dwStatus, e->dwEventId, e->dwCardType, e->hKernelPlugIn, e->dwOptions, e->u.Usb.deviceId.dwVendorId, e->u.Usb.deviceId.dwProductId, e->u.Usb.dwUniqueID, e->dwEventVer, e->dwNumMatchTables);
 160                                 for (i = 0; i < e->dwNumMatchTables; i++) {
 161                                         fprintf(stderr,"match: dev: %x:%x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n", e->matchTables[i].VendorId, e->matchTables[i].ProductId, e->matchTables[i].bDeviceClass, e->matchTables[i].bDeviceSubClass, e->matchTables[i].bInterfaceClass, e->matchTables[i].bInterfaceSubClass, e->matchTables[i].bInterfaceProtocol);
 162
 163                                         for (bus = busses; bus; bus = bus->next) {
 164                                                 struct usb_device *dev;
 165
 166                                                 for (dev = bus->devices; dev; dev = dev->next) {
 167                                                         struct usb_device_descriptor *desc = &(dev->descriptor);
 168
 169                                                         if((desc->idVendor == e->matchTables[i].VendorId) &&
 170                                                            (desc->idProduct == e->matchTables[i].ProductId) &&
 171                                                            (desc->bDeviceClass == e->matchTables[i].bDeviceClass) &&
 172                                                            (desc->bDeviceSubClass == e->matchTables[i].bDeviceSubClass)) {
 173                                                                 struct usb_interface *interface = dev->config->interface;
 174                                                                 int ai;
 175
 176                                                                 for (ai = 0; ai < interface->num_altsetting; ai++) {
 177                                                                         fprintf(stderr, "intclass: %x, intsubclass: %x, intproto: %x\n", interface->altsetting[i].bInterfaceClass, interface->altsetting[i].bInterfaceSubClass, interface->altsetting[i].bInterfaceProtocol);
 178                                                                         if ((interface->altsetting[i].bInterfaceSubClass == e->matchTables[i].bInterfaceSubClass) &&
 179                                                                             (interface->altsetting[i].bInterfaceProtocol == e->matchTables[i].bInterfaceProtocol)){
 180                                                                                 /* TODO: check interfaceClass! */
 181                                                                                 fprintf(stderr,"!!!FOUND DEVICE WITH LIBUSB!!!\n");
 182                                                                                 usb_cable = dev;
 183                                                                                 card_type = e->dwCardType;
 184                                                                         }
 185                                                                 }
 186                                                         }
 187                                                 }
 188                                         }
 189                                 }
 190
 191 #ifndef USE_LIBUSB
 192                                 ret = (*ioctl_func) (fd, request, wdioctl);
 193 #endif
 194
 195                                 fprintf(stderr,"handle: %lu, action: %lu, status: %lu, eventid: %lu, cardtype: %lu, kplug: %lu, options: %lu, dev: %lx:%lx, unique: %lu, ver: %lu, nummatch: %lu\n", e->handle, e->dwAction, e->dwStatus, e->dwEventId, e->dwCardType, e->hKernelPlugIn, e->dwOptions, e->u.Usb.deviceId.dwVendorId, e->u.Usb.deviceId.dwProductId, e->u.Usb.dwUniqueID, e->dwEventVer, e->dwNumMatchTables);
 196                                 for (i = 0; i < e->dwNumMatchTables; i++)
 197                                         fprintf(stderr,"match: dev: %x:%x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n", e->matchTables[i].VendorId, e->matchTables[i].ProductId, e->matchTables[i].bDeviceClass, e->matchTables[i].bDeviceSubClass, e->matchTables[i].bInterfaceClass, e->matchTables[i].bInterfaceSubClass, e->matchTables[i].bInterfaceProtocol);
 198                         }
 199                         break;
 200
 201                 case TRANSFER:
 202                         fprintf(stderr,"TRANSFER\n");
 203 #ifndef USE_LIBUSB
 204                         ret = (*ioctl_func) (fd, request, wdioctl);
 205 #endif
 206                         break;
 207
 208                 case EVENT_UNREGISTER:
 209                         fprintf(stderr,"EVENT_UNREGISTER\n");
 210 #ifndef USE_LIBUSB
 211                         ret = (*ioctl_func) (fd, request, wdioctl);
 212 #endif
 213                         break;
 214
 215                 case INT_WAIT:
 216                         fprintf(stderr,"INT_WAIT\n");
 217                         {
 218                                 struct interrupt *it = (struct interrupt*)(wdheader->data);
 219
 220                                 fprintf(stderr,"Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds, it->fEnableOk, it->dwCounter, it->dwLost, it->fStopped);
 221
 222 #ifndef USE_LIBUSB
 223                                 ret = (*ioctl_func) (fd, request, wdioctl);
 224 #else
 225                                 if (usb_cable)
 226                                         it->dwCounter++;
 227 #endif
 228
 229                                 fprintf(stderr,"Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds, it->fEnableOk, it->dwCounter, it->dwLost, it->fStopped);
 230                         }
 231                         break;
 232
 233                 case CARD_UNREGISTER:
 234                         fprintf(stderr,"CARD_UNREGISTER\n");
 235 #ifndef USE_LIBUSB
 236                         ret = (*ioctl_func) (fd, request, wdioctl);
 237 #endif
 238                         break;
 239
 240                 case EVENT_PULL:
 241                         fprintf(stderr,"EVENT_PULL\n");
 242                         {
 243                                 struct event *e = (struct event*)(wdheader->data);
 244                                 int i;
 245
 246                                 fprintf(stderr,"handle: %lu, action: %lu, status: %lu, eventid: %lu, cardtype: %lu, kplug: %lu, options: %lu, dev: %lx:%lx, unique: %lu, ver: %lu, nummatch: %lu\n", e->handle, e->dwAction, e->dwStatus, e->dwEventId, e->dwCardType, e->hKernelPlugIn, e->dwOptions, e->u.Usb.deviceId.dwVendorId, e->u.Usb.deviceId.dwProductId, e->u.Usb.dwUniqueID, e->dwEventVer, e->dwNumMatchTables);
 247                                 for (i = 0; i < e->dwNumMatchTables; i++)
 248                                         fprintf(stderr,"match: dev: %x:%x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n", e->matchTables[i].VendorId, e->matchTables[i].ProductId, e->matchTables[i].bDeviceClass, e->matchTables[i].bDeviceSubClass, e->matchTables[i].bInterfaceClass, e->matchTables[i].bInterfaceSubClass, e->matchTables[i].bInterfaceProtocol);
 249
 250 #ifndef USE_LIBUSB
 251                                 ret = (*ioctl_func) (fd, request, wdioctl);
 252 #else
 253 //EVENT_PULL
 254 //handle: 1, action: 0, status: 0, eventid: 0, cardtype: 0, kplug: 0, options: 0, dev: 0:0, unique: 0, ver: 1, nummatch: 1
 255 //match: dev: 0:0, class: 0, subclass: 0, intclass: 0, intsubclass: 0, intproto: 0
 256 //handle: 1, action: 1, status: 0, eventid: 109, cardtype: 4294967294, kplug: 0, options: 0, dev: 0:0, unique: 90, ver: 1, nummatch: 1
 257 //match: dev: 3fd:8, class: 0, subclass: 0, intclass: ff, intsubclass: 0, intproto: 0
 258                                 if (usb_cable) {
 259                                         struct usb_interface *interface = usb_cable->config->interface;
 260
 261                                         e->dwCardType = card_type;
 262                                         e->dwAction = 1;
 263                                         e->dwEventId = 109;
 264                                         e->u.Usb.dwUniqueID = 4711;
 265                                         e->matchTables[0].VendorId = usb_cable->descriptor.idVendor;
 266                                         e->matchTables[0].ProductId = usb_cable->descriptor.idProduct;
 267                                         e->matchTables[0].bDeviceClass = usb_cable->descriptor.bDeviceClass;
 268                                         e->matchTables[0].bDeviceSubClass = usb_cable->descriptor.bDeviceSubClass;
 269                                         e->matchTables[0].bInterfaceClass = interface->altsetting[0].bInterfaceClass;
 270                                         e->matchTables[0].bInterfaceSubClass = interface->altsetting[0].bInterfaceSubClass;
 271                                         e->matchTables[0].bInterfaceProtocol = interface->altsetting[0].bInterfaceProtocol;
 272                                 }
 273 #endif
 274
 275                                 fprintf(stderr,"handle: %lu, action: %lu, status: %lu, eventid: %lu, cardtype: %lu, kplug: %lu, options: %lu, dev: %lx:%lx, unique: %lu, ver: %lu, nummatch: %lu\n", e->handle, e->dwAction, e->dwStatus, e->dwEventId, e->dwCardType, e->hKernelPlugIn, e->dwOptions, e->u.Usb.deviceId.dwVendorId, e->u.Usb.deviceId.dwProductId, e->u.Usb.dwUniqueID, e->dwEventVer, e->dwNumMatchTables);
 276                                 for (i = 0; i < e->dwNumMatchTables; i++)
 277                                         fprintf(stderr,"match: dev: %x:%x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n", e->matchTables[i].VendorId, e->matchTables[i].ProductId, e->matchTables[i].bDeviceClass, e->matchTables[i].bDeviceSubClass, e->matchTables[i].bInterfaceClass, e->matchTables[i].bInterfaceSubClass, e->matchTables[i].bInterfaceProtocol);
 278                         }
 279                         break;
 280
 281                 default:
 282                         fprintf(stderr,"!!!Unsupported IOCTL: %x!!!\n", request);
 283 #ifndef USE_LIBUSB
 284                         ret = (*ioctl_func) (fd, request, wdioctl);
 285 #endif
 286                         break;
 287         }
 288
 289         return ret;
 290 }
 291
 292
 293 typedef int (*open_funcptr_t) (const char *, int, mode_t);
 294
 295 int open (const char *pathname, int flags, ...)
 296 {
 297         static open_funcptr_t func = NULL;
 298         mode_t mode = 0;
 299         va_list args;
 300         int fd;
 301
 302         if (!func)
 303                 func = (open_funcptr_t) dlsym (REAL_LIBC, "open");
 304
 305         if (flags & O_CREAT) {
 306                 va_start(args, flags);
 307                 mode = va_arg(args, mode_t);
 308                 va_end(args);
 309         }
 310
 311         fd = (*func) (pathname, flags, mode);
 312
 313         if (!strcmp (pathname, "/dev/windrvr6")) {
 314                 fprintf(stderr,"opening windrvr6\n");
 315                 windrvrfd = fd;
 316                 if (!busses) {
 317                         usb_init();
 318                         usb_find_busses();
 319                         usb_find_devices();
 320
 321                         busses = usb_get_busses();
 322                 }
 323         }
 324
 325         return fd;
 326 }
 327
 328 void diff(unsigned char *buf1, unsigned char *buf2, int len) {
 329         int i;
 330
 331         for(i=0; i<len; i++) {
 332                 if (buf1[i] != buf2[i]) {
 333                         fprintf(stderr,"Diff at %d: %02x(%c)->%02x(%c)\n", i, buf1[i], ((buf1[i] >= 31 && buf1[i] <= 126)?buf1[i]:'.'), buf2[i], ((buf2[i] >= 31 && buf2[i] <= 126)?buf2[i]:'.'));
 334                 }
 335         }
 336 }
 337
 338 void hexdump(unsigned char *buf, int len) {
 339         int i;
 340
 341         for(i=0; i<len; i++) {
 342                 fprintf(stderr,"%02x ", buf[i]);
 343                 if ((i % 16) == 15)
 344                         fprintf(stderr,"\n");
 345         }
 346 }
 347
 348 int ioctl(int fd, int request, ...)
 349 {
 350         va_list args;
 351         void *argp;
 352         int ret;
 353
 354         if (!ioctl_func)
 355                 ioctl_func = (int (*) (int, int, void *)) dlsym (REAL_LIBC, "ioctl");
 356
 357         va_start (args, request);
 358         argp = va_arg (args, void *);
 359         va_end (args);
 360
 361         if (fd == windrvrfd)
 362                 ret = do_wdioctl(fd, request, argp);
 363         else
 364                 ret = (*ioctl_func) (fd, request, argp);
 365
 366         return ret;
 367 }
 368
 369 #if 0
 370 void *mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset)
 371 {
 372         static void* (*func) (void *, size_t, int, int, int, off_t) = NULL;
 373         void *ret;
 374
 375         if (!func)
 376                 func = (void* (*) (void *, size_t, int, int, int, off_t)) dlsym (REAL_LIBC, "mmap");
 377
 378         ret = (*func) (start, length, prot, flags, fd, offset);
 379         fprintf(stderr,"MMAP: %x, %d, %d, %d, %d, %d -> %x\n", (unsigned int)start, length, prot, flags, fd, offset, (unsigned int)ret);
 380         mmapped = ret;
 381         mmapplen = length;
 382
 383         return ret;
 384 }
 385
 386 void *mmap64(void *start, size_t length, int prot, int flags, int fd, off64_t offset)
 387 {
 388         static void* (*func) (void *, size_t, int, int, int, off64_t) = NULL;
 389         void *ret;
 390
 391         if (!func)
 392                 func = (void* (*) (void *, size_t, int, int, int, off64_t)) dlsym (REAL_LIBC, "mmap64");
 393
 394         ret = (*func) (start, length, prot, flags, fd, offset);
 395         fprintf(stderr,"MMAP64: %x, %d, %d, %d, %d, %lld -> %x\n", (unsigned int)start, length, prot, flags, fd, offset, (unsigned int)ret);
 396         mmapped = ret;
 397         mmapplen = length;
 398
 399         return ret;
 400 }
 401
 402 void *mmap2(void *start, size_t length, int prot, int flags, int fd, off_t pgoffset)
 403 {
 404         static void* (*func) (void *, size_t, int, int, int, off_t) = NULL;
 405         void *ret;
 406
 407         if (!func)
 408                 func = (void* (*) (void *, size_t, int, int, int, off_t)) dlsym (REAL_LIBC, "mmap2");
 409
 410         ret = (*func) (start, length, prot, flags, fd, pgoffset);
 411         fprintf(stderr,"MMAP2: %x, %d, %d, %d, %d, %d -> %x\n", (unsigned int)start, length, prot, flags, fd, pgoffset, (unsigned int)ret);
 412         mmapped = ret;
 413         mmapplen = length;
 414
 415         return ret;
 416 }
 417
 418 void *malloc(size_t size)
 419 {
 420         static void* (*func) (size_t) = NULL;
 421         void *ret;
 422
 423         if (!func)
 424                 func = (void* (*) (size_t)) dlsym(REAL_LIBC, "malloc");
 425
 426         ret = (*func) (size);
 427
 428         //fprintf(stderr,"MALLOC: %d -> %x\n", size, (unsigned int) ret);
 429
 430         return ret;
 431 }
 432 #endif
 433
 434
 435 #endif