+
+int xpcu_find(struct event *e) {
+ struct xpcu_event_s *xpcu_event = NULL;
+ struct xpcu_s *xpcu = NULL;
+ char* devpos;
+ struct usb_bus *bus;
+ int busnum = -1, devnum = -1;
+ int i;
+
+ e->handle = (unsigned long)NULL;
+
+ xpcu_init();
+
+ xpcu_event = malloc(sizeof(struct xpcu_event_s));
+ if (!xpcu_event)
+ return -ENOMEM;
+
+ bzero(xpcu_event, sizeof(struct xpcu_event_s));
+ xpcu_event->xpcu = NULL;
+ xpcu_event->count = 0;
+ xpcu_event->interrupt_count = 0;
+ pthread_mutex_init(&xpcu_event->interrupt, NULL);
+
+ devpos = getenv("XILINX_USB_DEV");
+ if (devpos != NULL) {
+ int j;
+ char *devstr = NULL, *remainder;
+
+ DPRINTF("XILINX_USB_DEV=%s\n", devpos);
+
+ for (j = 0; j < strlen(devpos) && devpos[j] != 0; j++) {
+ if (devpos[j] == ':') {
+ devpos[j] = 0;
+ devstr = &(devpos[j+1]);
+ }
+ }
+
+ if (devstr && strlen(devstr) > 0) {
+ busnum = strtol(devpos, &remainder, 10);
+ if (devpos == remainder) {
+ busnum = -1;
+ } else {
+ devnum = strtol(devstr, &remainder, 10);
+ if (devstr == remainder) {
+ busnum = -1;
+ devnum = -1;
+ } else {
+ fprintf(stderr,"Using XILINX platform cable USB at %03d:%03d\n",
+ busnum, devnum);
+ }
+ }
+ }
+ }
+
+ for (i = 0; i < e->dwNumMatchTables; i++) {
+
+ DPRINTF("match: dev: %04x:%04x, 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);
+
+ for (bus = busses; bus; bus = bus->next) {
+ struct usb_device *dev;
+
+ if ((devnum != -1) && (strtol(bus->dirname, NULL, 10) != busnum))
+ continue;
+
+ for (dev = bus->devices; dev; dev = dev->next) {
+ struct usb_device_descriptor *desc = &(dev->descriptor);
+
+ if((desc->idVendor == e->matchTables[i].VendorId) &&
+ (desc->idProduct == e->matchTables[i].ProductId) &&
+ (desc->bDeviceClass == e->matchTables[i].bDeviceClass) &&
+ (desc->bDeviceSubClass == e->matchTables[i].bDeviceSubClass) &&
+ ((devnum == -1) || (strtol(dev->filename, NULL, 10) == devnum)) ) {
+ int ac;
+ for (ac = 0; ac < desc->bNumConfigurations; ac++) {
+ struct usb_interface *interface = dev->config[ac].interface;
+ int ai;
+
+ for (ai = 0; ai < interface->num_altsetting; ai++) {
+
+ DPRINTF("intclass: %x, intsubclass: %x, intproto: %x\n",
+ interface->altsetting[i].bInterfaceClass,
+ interface->altsetting[i].bInterfaceSubClass,
+ interface->altsetting[i].bInterfaceProtocol);
+
+ if ((interface->altsetting[ai].bInterfaceSubClass == e->matchTables[i].bInterfaceSubClass) &&
+ (interface->altsetting[ai].bInterfaceProtocol == e->matchTables[i].bInterfaceProtocol)){
+ int n = xpcu_event->count;
+
+ /* TODO: check interfaceClass! */
+ DPRINTF("found device with libusb\n");
+
+ xpcu = realloc(xpcu, sizeof(struct xpcu_s) * (++xpcu_event->count));
+ if (!xpcu) {
+ free(xpcu_event);
+ return -ENOMEM;
+ }
+
+ bzero(&(xpcu[n]), sizeof(struct xpcu_s));
+ xpcu[n].interface = -1;
+ xpcu[n].alternate = -1;
+ xpcu[n].dev = dev;
+ xpcu[n].card_type = e->dwCardType;
+
+ xpcu_event->xpcu = xpcu;
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+
+ e->handle = (unsigned long)xpcu_event;
+
+ return 0;
+}
+
+int xpcu_found(struct event *e) {
+ struct xpcu_event_s *xpcu_event = (struct xpcu_event_s*)e->handle;
+ struct xpcu_s *xpcu = NULL;
+
+ if (xpcu_event && xpcu_event->count && (xpcu_event->interrupt_count <= xpcu_event->count))
+ xpcu = &(xpcu_event->xpcu[xpcu_event->interrupt_count-1]);
+
+ if (xpcu && xpcu->dev) {
+ struct usb_interface *interface = xpcu->dev->config->interface;
+
+ e->dwCardType = xpcu->card_type;
+ e->dwAction = 1;
+ e->dwEventId = 1;
+ e->u.Usb.dwUniqueID = (unsigned long)xpcu;
+ e->matchTables[0].VendorId = xpcu->dev->descriptor.idVendor;
+ e->matchTables[0].ProductId = xpcu->dev->descriptor.idProduct;
+ e->matchTables[0].bDeviceClass = xpcu->dev->descriptor.bDeviceClass;
+ e->matchTables[0].bDeviceSubClass = xpcu->dev->descriptor.bDeviceSubClass;
+ e->matchTables[0].bInterfaceClass = interface->altsetting[0].bInterfaceClass;
+ e->matchTables[0].bInterfaceSubClass = interface->altsetting[0].bInterfaceSubClass;
+ e->matchTables[0].bInterfaceProtocol = interface->altsetting[0].bInterfaceProtocol;
+ }
+
+ return 0;
+}
+
+int xpcu_close(struct event *e) {
+ struct xpcu_event_s *xpcu_event = (struct xpcu_event_s*)e->handle;
+
+ if (!xpcu_event)
+ return -ENODEV;
+
+ if(xpcu_event) {
+ struct xpcu_s *xpcu;
+ int i;
+
+ for (i = 0; i < xpcu_event->count; i++) {
+ xpcu = &(xpcu_event->xpcu[i]);
+ if (xpcu->handle) {
+ xpcu_claim(xpcu, XPCU_RELEASE);
+ usb_close(xpcu->handle);
+ }
+ }
+
+ if (xpcu_event->xpcu)
+ free(xpcu_event->xpcu);
+
+ busses = NULL;
+ free(xpcu_event);
+ }
+
+ return 0;
+}
+
+int xpcu_int_state(struct interrupt *it, int enable) {
+ struct xpcu_event_s *xpcu_event = (struct xpcu_event_s*)it->hInterrupt;
+ pthread_mutex_t *interrupt = &dummy_interrupt;
+
+ if (xpcu_event)
+ interrupt = &xpcu_event->interrupt;
+
+ if (enable == ENABLE_INTERRUPT) {
+ it->fEnableOk = 1;
+ it->fStopped = 0;
+ it->dwCounter = 0;
+ pthread_mutex_trylock(interrupt);
+ } else {
+ it->dwCounter = 0;
+ it->fStopped = 1;
+ if (pthread_mutex_trylock(interrupt) == EBUSY)
+ pthread_mutex_unlock(interrupt);
+ }
+
+ return 0;
+}
+
+int xpcu_int_wait(struct interrupt *it) {
+ struct xpcu_event_s *xpcu_event = (struct xpcu_event_s*)it->hInterrupt;
+
+ if (xpcu_event) {
+ if (it->dwCounter < xpcu_event->count) {
+ it->dwCounter++;
+ } else {
+ pthread_mutex_lock(&xpcu_event->interrupt);
+ pthread_mutex_unlock(&xpcu_event->interrupt);
+ }
+ xpcu_event->interrupt_count++;
+ } else {
+ pthread_mutex_lock(&dummy_interrupt);
+ pthread_mutex_unlock(&dummy_interrupt);