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