]> cvs.zerfleddert.de Git - usb-driver/blobdiff - usb-driver.c
More robust search for filename in memory at runtime
[usb-driver] / usb-driver.c
index a3a2efbfed7608c7ee886732d99c5c76fb7fc12f..3b8b51d4747d2f8c9edf631f627171000268d78d 100644 (file)
@@ -1,4 +1,4 @@
-/* libusb connector for XILINX impact
+/* libusb/ppdev connector for XILINX impact
  *
  * Copyright (c) 2007 Michael Gernoth <michael@gernoth.net>
  *
 #include <sys/stat.h>
 #include <sys/time.h>
 #include <stdio.h>
-#include <usb.h>
 #include <signal.h>
-#include <pthread.h>
 #include <errno.h>
 #include <inttypes.h>
+#include <sys/ioctl.h>
+#include <sys/utsname.h>
+#include <bits/wordsize.h>
+#include <sys/ipc.h>
+#include <sys/sem.h>
+#include <sys/mman.h>
+#include <syscall.h>
+#include <linux/personality.h>
 #include "usb-driver.h"
+#include "config.h"
+#include "xpcu.h"
 
 static int (*ioctl_func) (int, int, void *) = NULL;
-static int windrvrfd = -1;
-FILE *modulesfp = NULL;
+static int *windrvrfds = NULL;
+static int windrvrfds_count = 0;
+static unsigned long ppbase = 0;
+static unsigned long ecpbase = 0;
+static struct parport_config *pport = NULL;
+static FILE *modulesfp = NULL;
+static FILE *baseaddrfp = NULL;
+static int baseaddrnum = 0;
 static int modules_read = 0;
-static struct usb_bus *busses = NULL;
-static struct usb_device *usbdevice;
-static usb_dev_handle *usb_devhandle = NULL;
-static unsigned long card_type;
-static int ints_enabled = 0;
-static pthread_mutex_t int_wait = PTHREAD_MUTEX_INITIALIZER;
 
 #define NO_WINDRVR 1
-/* #define DEBUG 1 */
 
-#ifdef DEBUG
-#define DPRINTF(format, args...) fprintf(stderr, format, ##args)
-void hexdump(unsigned char *buf, int len) {
-       int i;
+void hexdump(unsigned char *buf, int len, char *prefix) {
+       int i = 0;
 
-       for(i=0; i<len; i++) {
+       fprintf(stderr, "%s %03x: ", prefix, i);
+       for(i = 0; i<len; i++) {
                fprintf(stderr,"%02x ", buf[i]);
-               if ((i % 16) == 15)
-                       fprintf(stderr,"\n");
+               if ((i % 16) == 7)
+                       fprintf(stderr," ");
+               if (((i % 16) == 15) && ((i+1) < len))
+                       fprintf(stderr,"\n%s %03x: ", prefix, i+1);
        }
        fprintf(stderr,"\n");
 }
-#else
-#define DPRINTF(format, args...)
-#endif
-
-int usb_deviceinfo(unsigned char *buf) {
-       int i,j,k,l;
-       int len = 0;
-       WDU_CONFIGURATION **pConfigs, **pActiveConfig;
-       WDU_INTERFACE **pActiveInterface;
-
-       if (buf) {
-               struct usb_device_info *udi = (struct usb_device_info*)(buf+len);
-
-               udi->Descriptor.bLength = sizeof(WDU_DEVICE_DESCRIPTOR);
-               udi->Descriptor.bDescriptorType = usbdevice->descriptor.bDescriptorType;
-               udi->Descriptor.bcdUSB = usbdevice->descriptor.bcdUSB;
-               udi->Descriptor.bDeviceClass = usbdevice->descriptor.bDeviceClass;
-               udi->Descriptor.bDeviceSubClass = usbdevice->descriptor.bDeviceSubClass;
-               udi->Descriptor.bDeviceProtocol = usbdevice->descriptor.bDeviceProtocol;
-               udi->Descriptor.bMaxPacketSize0 = usbdevice->descriptor.bMaxPacketSize0;
-               udi->Descriptor.idVendor = usbdevice->descriptor.idVendor;
-               udi->Descriptor.idProduct = usbdevice->descriptor.idProduct;
-               udi->Descriptor.bcdDevice = usbdevice->descriptor.bcdDevice;
-               udi->Descriptor.iManufacturer = usbdevice->descriptor.iManufacturer;
-               udi->Descriptor.iProduct = usbdevice->descriptor.iProduct;
-               udi->Descriptor.iSerialNumber = usbdevice->descriptor.iSerialNumber;
-               udi->Descriptor.bNumConfigurations = usbdevice->descriptor.bNumConfigurations;
-
-               /* TODO: Fix Pipe0! */
-               udi->Pipe0.dwNumber = 0x00;
-               udi->Pipe0.dwMaximumPacketSize = usbdevice->descriptor.bMaxPacketSize0;
-               udi->Pipe0.type = 0;
-               udi->Pipe0.direction = WDU_DIR_IN_OUT;
-               udi->Pipe0.dwInterval = 0;
-
-               pConfigs = &(udi->pConfigs);
-               pActiveConfig = &(udi->pActiveConfig);
-               pActiveInterface = &(udi->pActiveInterface[0]);
-       }
-
-       len = sizeof(struct usb_device_info);
-
-       for (i=0; i<usbdevice->descriptor.bNumConfigurations; i++)
-       {
-               struct usb_config_descriptor *conf_desc = &usbdevice->config[i];
-               WDU_INTERFACE **pInterfaces;
-               WDU_ALTERNATE_SETTING **pAlternateSettings[conf_desc->bNumInterfaces];
-               WDU_ALTERNATE_SETTING **pActiveAltSetting[conf_desc->bNumInterfaces];
-
-               if (buf) {
-                       WDU_CONFIGURATION *cfg = (WDU_CONFIGURATION*)(buf+len);
-
-                       *pConfigs = cfg;
-                       *pActiveConfig = cfg;
-
-                       cfg->Descriptor.bLength = conf_desc->bLength;
-                       cfg->Descriptor.bDescriptorType = conf_desc->bDescriptorType;
-                       cfg->Descriptor.wTotalLength = conf_desc->wTotalLength;
-                       cfg->Descriptor.bNumInterfaces = conf_desc->bNumInterfaces;
-                       cfg->Descriptor.bConfigurationValue = conf_desc->bConfigurationValue;
-                       cfg->Descriptor.iConfiguration = conf_desc->iConfiguration;
-                       cfg->Descriptor.bmAttributes = conf_desc->bmAttributes;
-                       cfg->Descriptor.MaxPower = conf_desc->MaxPower;
-
-                       cfg->dwNumInterfaces = conf_desc->bNumInterfaces;
-
-                       pInterfaces = &(cfg->pInterfaces);
-               }
-               len += sizeof(WDU_CONFIGURATION);
-
-               if (buf) {
-                       *pInterfaces = (WDU_INTERFACE*)(buf+len);
-                       for (j=0; j<conf_desc->bNumInterfaces; j++) {
-                               WDU_INTERFACE *iface = (WDU_INTERFACE*)(buf+len);
-
-                               pActiveInterface[j] = iface;
-
-                               pAlternateSettings[j] = &(iface->pAlternateSettings);
-                               iface->dwNumAltSettings = usbdevice->config[i].interface[j].num_altsetting;
-                               pActiveAltSetting[j] = &(iface->pActiveAltSetting);
-
-                               len += sizeof(WDU_INTERFACE);
-                       }
-               } else {
-                       len += sizeof(WDU_INTERFACE) * conf_desc->bNumInterfaces;
-               }
-
-               for (j=0; j<conf_desc->bNumInterfaces; j++)
-               {
-                       struct usb_interface *interface = &usbdevice->config[i].interface[j];
-
-                       if (buf) {
-                               *pAlternateSettings[j] = (WDU_ALTERNATE_SETTING*)(buf+len);
-                               /* FIXME: */
-                               *pActiveAltSetting[j] = (WDU_ALTERNATE_SETTING*)(buf+len);
-                       }
 
-                       for(k=0; k<interface->num_altsetting; k++)
-                       {
-                               unsigned char bNumEndpoints = interface->altsetting[k].bNumEndpoints;
-                               WDU_ENDPOINT_DESCRIPTOR **pEndpointDescriptors;
-                               WDU_PIPE_INFO **pPipes;
-
-                               if (buf) {
-                                       WDU_ALTERNATE_SETTING *altset = (WDU_ALTERNATE_SETTING*)(buf+len);
-
-                                       altset->Descriptor.bLength = interface->altsetting[k].bLength;
-                                       altset->Descriptor.bDescriptorType = interface->altsetting[k].bDescriptorType;
-                                       altset->Descriptor.bInterfaceNumber = interface->altsetting[k].bInterfaceNumber;
-                                       altset->Descriptor.bAlternateSetting = interface->altsetting[k].bAlternateSetting;
-                                       altset->Descriptor.bNumEndpoints = interface->altsetting[k].bNumEndpoints;
-                                       altset->Descriptor.bInterfaceClass = interface->altsetting[k].bInterfaceClass;
-                                       altset->Descriptor.bInterfaceSubClass = interface->altsetting[k].bInterfaceSubClass;
-                                       altset->Descriptor.bInterfaceProtocol = interface->altsetting[k].bInterfaceProtocol;
-                                       altset->Descriptor.iInterface = interface->altsetting[k].iInterface;
-                                       pEndpointDescriptors = &(altset->pEndpointDescriptors);
-                                       pPipes = &(altset->pPipes);
 
-                               }
-                               len +=sizeof(WDU_ALTERNATE_SETTING);
-
-                               if (buf) {
-                                       *pEndpointDescriptors = (WDU_ENDPOINT_DESCRIPTOR*)(buf+len);
-                                       for (l = 0; l < bNumEndpoints; l++) {
-                                               WDU_ENDPOINT_DESCRIPTOR *ed = (WDU_ENDPOINT_DESCRIPTOR*)(buf+len);
-
-                                               ed->bLength = interface->altsetting[k].endpoint[l].bLength;
-                                               ed->bDescriptorType = interface->altsetting[k].endpoint[l].bDescriptorType;
-                                               ed->bEndpointAddress = interface->altsetting[k].endpoint[l].bEndpointAddress;
-                                               ed->bmAttributes = interface->altsetting[k].endpoint[l].bmAttributes;
-                                               ed->wMaxPacketSize = interface->altsetting[k].endpoint[l].wMaxPacketSize;
-                                               ed->bInterval = interface->altsetting[k].endpoint[l].bInterval;
-
-                                               len += sizeof(WDU_ENDPOINT_DESCRIPTOR);
-                                       }
-                                               
-                                       *pPipes = (WDU_PIPE_INFO*)(buf+len);
-                                       for (l = 0; l < bNumEndpoints; l++) {
-                                               WDU_PIPE_INFO *pi = (WDU_PIPE_INFO*)(buf+len);
-
-                                               pi->dwNumber = interface->altsetting[k].endpoint[l].bEndpointAddress;
-                                               pi->dwMaximumPacketSize = WDU_GET_MAX_PACKET_SIZE(interface->altsetting[k].endpoint[l].wMaxPacketSize);
-                                               pi->type = interface->altsetting[k].endpoint[l].bmAttributes & USB_ENDPOINT_TYPE_MASK;
-                                               if (pi->type == PIPE_TYPE_CONTROL)
-                                                       pi->direction = WDU_DIR_IN_OUT;
-                                               else
-                                               {
-                                                       pi->direction = interface->altsetting[k].endpoint[l].bEndpointAddress & USB_ENDPOINT_DIR_MASK ?  WDU_DIR_IN : WDU_DIR_OUT;
-                                               }
-
-                                               pi->dwInterval = interface->altsetting[k].endpoint[l].bInterval;
-
-                                               len += sizeof(WDU_PIPE_INFO);
-                                       }
-                               } else {
-                                       len +=(sizeof(WDU_ENDPOINT_DESCRIPTOR)+sizeof(WDU_PIPE_INFO))*bNumEndpoints;
-                               }
-                       }
-               }
-       }
-
-       return len;
-}
-
-int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
+static int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
        struct header_struct* wdheader = (struct header_struct*)wdioctl;
        struct version_struct *version;
        int ret = 0;
@@ -240,10 +86,10 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
                return (*ioctl_func) (fd, request, wdioctl);
        }
 
-       switch(request) {
+       switch(request & ~(0xc0000000)) {
                case VERSION:
                        version = (struct version_struct*)(wdheader->data);
-                       strcpy(version->version, "WinDriver no more");
+                       strcpy(version->version, "libusb-driver.so version: " USB_DRIVER_VERSION);
                        version->versionul = 802;
                        DPRINTF("VERSION\n");
                        break;
@@ -252,89 +98,106 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
                        DPRINTF("LICENSE\n");
                        break;
 
+               case CARD_REGISTER_OLD:
                case CARD_REGISTER:
-                       /* TODO: Implement for LPT-support */
-#if 0
+                       DPRINTF("CARD_REGISTER\n");
                        {
                                struct card_register* cr = (struct card_register*)(wdheader->data);
-                       }
+
+                               DPRINTF("-> Items: %lu, Addr: 0x%lx, bytes: %lu, bar: %lu\n",
+                               cr->Card.dwItems,
+                               (unsigned long)cr->Card.Item[0].I.IO.dwAddr,
+                               cr->Card.Item[0].I.IO.dwBytes,
+                               cr->Card.Item[0].I.IO.dwBar);
+                               
+                               DPRINTF("-> Items: %lu, Addr: 0x%lx, bytes: %lu, bar: %lu\n",
+                               cr->Card.dwItems,
+                               (unsigned long)cr->Card.Item[1].I.IO.dwAddr,
+                               cr->Card.Item[1].I.IO.dwBytes,
+                               cr->Card.Item[1].I.IO.dwBar);
+#ifndef NO_WINDRVR
+                               ret = (*ioctl_func) (fd, request, wdioctl);
+#else
+                               cr->hCard = 0;
+
+                               pport = config_get((unsigned long)cr->Card.Item[0].I.IO.dwAddr / 0x10);
+                               if (!pport)
+                                       break;
+
+                               ret = pport->open((unsigned long)cr->Card.Item[0].I.IO.dwAddr / 0x10);
+
+                               ppbase = (unsigned long)cr->Card.Item[0].I.IO.dwAddr;
+
+                               if (cr->Card.dwItems > 1 && cr->Card.Item[1].I.IO.dwAddr)
+                                       ecpbase = (unsigned long)cr->Card.Item[1].I.IO.dwAddr;
+
+                               if (ret >= 0) {
+                                       cr->hCard = ret;
+                               } else {
+                                       cr->hCard = 0;
+                               }
 #endif
-                       DPRINTF("CARD_REGISTER\n");
+                               DPRINTF("<-hCard: %lu\n", cr->hCard);
+                       }
                        break;
 
                case USB_TRANSFER:
-                       DPRINTF("in USB_TRANSFER");
+                       DPRINTF("USB_TRANSFER\n");
                        {
                                struct usb_transfer *ut = (struct usb_transfer*)(wdheader->data);
 
 #ifdef DEBUG
-                               DPRINTF(" unique: %lu, pipe: %lu, read: %lu, options: %lx, size: %lu, timeout: %lx\n",
+                               DPRINTF("-> unique: 0x%lx, pipe: %lu, read: %lu, options: %lx, size: %lu, timeout: %lx\n",
                                ut->dwUniqueID, ut->dwPipeNum, ut->fRead,
                                ut->dwOptions, ut->dwBufferSize, ut->dwTimeout);
-                               DPRINTF("setup packet: ");
-                               hexdump(ut->SetupPacket, 8);
+                               if (ut->dwPipeNum == 0) {
+                                       DPRINTF("-> setup packet:");
+                                       hexdump(ut->SetupPacket, 8, "");
+                               }
 
                                if (!ut->fRead && ut->dwBufferSize)
                                {
-                                       hexdump(ut->pBuffer, ut->dwBufferSize);
+                                       hexdump(ut->pBuffer, ut->dwBufferSize, "->");
                                }
 #endif
 
 #ifndef NO_WINDRVR
                                ret = (*ioctl_func) (fd, request, wdioctl);
 #else
-                               /* http://www.jungo.com/support/documentation/windriver/802/wdusb_man_mhtml/node55.html#SECTION001213000000000000000 */
-                               if (ut->dwPipeNum == 0) { /* control pipe */
-                                       int requesttype, request, value, index, size;
-                                       requesttype = ut->SetupPacket[0];
-                                       request = ut->SetupPacket[1];
-                                       value = ut->SetupPacket[2] | (ut->SetupPacket[3] << 8);
-                                       index = ut->SetupPacket[4] | (ut->SetupPacket[5] << 8);
-                                       size = ut->SetupPacket[6] | (ut->SetupPacket[7] << 8);
-                                       DPRINTF("requesttype: %x, request: %x, value: %u, index: %u, size: %u\n", requesttype, request, value, index, size);
-                                       ret = usb_control_msg(usb_devhandle, requesttype, request, value, index, ut->pBuffer, size, ut->dwTimeout);
-                               } else {
-                                       if (ut->fRead) {
-                                               ret = usb_bulk_read(usb_devhandle, ut->dwPipeNum, ut->pBuffer, ut->dwBufferSize, ut->dwTimeout);
-
-                                       } else {
-                                               ret = usb_bulk_write(usb_devhandle, ut->dwPipeNum, ut->pBuffer, ut->dwBufferSize, ut->dwTimeout);
-                                       }
-                               }
-
-                               if (ret < 0) {
-                                       fprintf(stderr, "usb_transfer: %d (%s)\n", ret, usb_strerror());
-                               } else {
-                                       ut->dwBytesTransferred = ret;
-                                       ret = 0;
-                               }
+                               ret = xpcu_transfer(ut);
 #endif
 
 #ifdef DEBUG
                                DPRINTF("Transferred: %lu (%s)\n",ut->dwBytesTransferred, (ut->fRead?"read":"write"));
                                if (ut->fRead && ut->dwBytesTransferred)
                                {
-                                       DPRINTF("Read: ");
-                                       hexdump(ut->pBuffer, ut->dwBytesTransferred);
+                                       hexdump(ut->pBuffer, ut->dwBytesTransferred, "<-");
                                }
 #endif
                        }
                        break;
 
+               case INT_ENABLE_OLD:
                case INT_ENABLE:
                        DPRINTF("INT_ENABLE\n");
                        {
                                struct interrupt *it = (struct interrupt*)(wdheader->data);
 
-                               DPRINTF("Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n",
+                               DPRINTF("-> Handle: 0x%lx, 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);
 
-                               it->fEnableOk = 1;
-                               it->fStopped = 0;
-                               ints_enabled = 1;
-                               pthread_mutex_trylock(&int_wait);
+#ifndef NO_WINDRVR
+                               ret = (*ioctl_func) (fd, request, wdioctl);
+#else
+                               ret = xpcu_int_state(it, ENABLE_INTERRUPT);
+#endif
+
+                               DPRINTF("<- Handle: 0x%lx, 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);
                        }
 
                        break;
@@ -344,20 +207,16 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
                        {
                                struct interrupt *it = (struct interrupt*)(wdheader->data);
 
-                               DPRINTF("Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n",
+                               DPRINTF("-> Handle: 0x%lx, 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);
 #ifndef NO_WINDRVR
                                ret = (*ioctl_func) (fd, request, wdioctl);
 #else
-                               it->dwCounter = 0;
-                               it->fStopped = 1;
-                               ints_enabled = 0;
-                               if (pthread_mutex_trylock(&int_wait) == EBUSY)
-                                       pthread_mutex_unlock(&int_wait);
+                               ret = xpcu_int_state(it, DISABLE_INTERRUPT);
 #endif
-                               DPRINTF("Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n",
+                               DPRINTF("<- Handle: 0x%lx, 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);
@@ -369,68 +228,45 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
                        {
                                struct usb_set_interface *usi = (struct usb_set_interface*)(wdheader->data);
 
-                               DPRINTF("unique: %lu, interfacenum: %lu, alternatesetting: %lu, options: %lx\n",
+                               DPRINTF("-> unique: 0x%lx, interfacenum: %lu, alternatesetting: %lu, options: %lx\n",
                                usi->dwUniqueID, usi->dwInterfaceNum,
                                usi->dwAlternateSetting, usi->dwOptions);
 #ifndef NO_WINDRVR
                                ret = (*ioctl_func) (fd, request, wdioctl);
 #else
-                               if (usbdevice) {
-                                       if (!usb_devhandle)
-                                               usb_devhandle = usb_open(usbdevice);
-
-                                       /* FIXME: Select right interface! */
-                                       ret = usb_claim_interface(usb_devhandle, usbdevice->config[0].interface[usi->dwInterfaceNum].altsetting[usi->dwAlternateSetting].bInterfaceNumber);
-                                       if (!ret) {
-                                               if(!ret) {
-                                                       ret = usb_set_altinterface(usb_devhandle, usi->dwAlternateSetting);
-                                                       if (ret)
-                                                               fprintf(stderr, "usb_set_altinterface: %d\n", ret);
-                                               } else {
-                                                       fprintf(stderr, "usb_set_configuration: %d (%s)\n", ret, usb_strerror());
-                                               }
-                                       } else {
-                                               fprintf(stderr, "usb_claim_interface: %d -> %d (%s)\n",
-                                               usbdevice->config[0].interface[usi->dwInterfaceNum].altsetting[usi->dwAlternateSetting].bInterfaceNumber,
-                                               ret, usb_strerror());
-                                       }
-                               }
+                               ret = xpcu_set_interface(usi);
 #endif
-                               DPRINTF("unique: %lu, interfacenum: %lu, alternatesetting: %lu, options: %lx\n",
+                               DPRINTF("<- unique: 0x%lx, interfacenum: %lu, alternatesetting: %lu, options: %lx\n",
                                usi->dwUniqueID, usi->dwInterfaceNum,
                                usi->dwAlternateSetting, usi->dwOptions);
                        }
                        break;
 
+               case USB_GET_DEVICE_DATA_OLD:
                case USB_GET_DEVICE_DATA:
                        DPRINTF("USB_GET_DEVICE_DATA\n");
                        {
                                struct usb_get_device_data *ugdd = (struct usb_get_device_data*)(wdheader->data);
-                               int pSize;
 
-                               DPRINTF("unique: %lu, bytes: %lu, options: %lx\n",
+                               DPRINTF("-> unique: 0x%lx, bytes: %lu, options: %lx\n",
                                ugdd->dwUniqueID, ugdd->dwBytes,
                                ugdd->dwOptions);
 
-                               pSize = ugdd->dwBytes;
-                               if (!ugdd->dwBytes) {
-                                       if (usbdevice) {
-                                               ugdd->dwBytes = usb_deviceinfo(NULL);
-                                       }
-                               } else {
-                                       usb_deviceinfo((unsigned char*)ugdd->pBuf);
-                               }
+                               ret = xpcu_deviceinfo(ugdd);
+
                        }
                        break;
 
+               case EVENT_REGISTER_OLD:
                case EVENT_REGISTER:
                        DPRINTF("EVENT_REGISTER\n");
                        {
                                struct event *e = (struct event*)(wdheader->data);
-                               struct usb_bus *bus;
+#ifdef DEBUG
                                int i;
+#endif
 
-                               DPRINTF("handle: %lu, action: %lu, status: %lu, eventid: %lu, cardtype: %lu, kplug: %lu, options: %lu, dev: %lx:%lx, unique: %lu, ver: %lu, nummatch: %lu\n",
+                               DPRINTF("-> handle: 0x%lx, action: %lu, status: %lu, eventid: %lu, cardtype: %lu, kplug: %lu, options: %lu, dev: %lx:%lx, unique: 0x%lx, ver: %lu, nummatch: %lu\n",
                                e->handle, e->dwAction,
                                e->dwStatus, e->dwEventId, e->dwCardType,
                                e->hKernelPlugIn, e->dwOptions,
@@ -439,61 +275,14 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
                                e->u.Usb.dwUniqueID, e->dwEventVer,
                                e->dwNumMatchTables);
 
-                               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;
-
-                                               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)) {
-                                                                  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)){
-                                                                                          /* TODO: check interfaceClass! */
-                                                                                          DPRINTF("found device with libusb\n");
-                                                                                          usbdevice = dev;
-                                                                                          card_type = e->dwCardType;
-                                                                                  }
-                                                                          }
-                                                                  }
-                                                       }
-                                               }
-                                       }
-                               }
-
 #ifndef NO_WINDRVR
                                ret = (*ioctl_func) (fd, request, wdioctl);
 #else
-                               e->handle++;
+                               ret = xpcu_find(e);
 #endif
 
 #ifdef DEBUG
-                               DPRINTF("handle: %lu, action: %lu, status: %lu, eventid: %lu, cardtype: %lu, kplug: %lu, options: %lu, dev: %lx:%lx, unique: %lu, ver: %lu, nummatch: %lu\n",
+                               DPRINTF("<- handle: 0x%lx, action: %lu, status: %lu, eventid: %lu, cardtype: %lu, kplug: %lu, options: %lu, dev: %lx:%lx, unique: 0x%lx, ver: %lu, nummatch: %lu\n",
                                e->handle, e->dwAction,
                                e->dwStatus, e->dwEventId, e->dwCardType,
                                e->hKernelPlugIn, e->dwOptions,
@@ -515,18 +304,45 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
                        }
                        break;
 
+               case TRANSFER_OLD:
                case TRANSFER:
                        DPRINTF("TRANSFER\n");
+                       {
+                               WD_TRANSFER *tr = (WD_TRANSFER*)(wdheader->data);
+
 #ifndef NO_WINDRVR
-                       ret = (*ioctl_func) (fd, request, wdioctl);
+                               ret = (*ioctl_func) (fd, request, wdioctl);
+#else
+                               ret = pport->transfer(tr, fd, request, ppbase, ecpbase, 1);
+#endif
+                       }
+                       break;
+
+               case MULTI_TRANSFER_OLD:
+               case MULTI_TRANSFER:
+                       DPRINTF("MULTI_TRANSFER\n");
+                       {
+                               WD_TRANSFER *tr = (WD_TRANSFER*)(wdheader->data);
+                               unsigned long num = wdheader->size/sizeof(WD_TRANSFER);
+#ifndef NO_WINDRVR
+                               ret = (*ioctl_func) (fd, request, wdioctl);
+#else
+                               ret = pport->transfer(tr, fd, request, ppbase, ecpbase, num);
 #endif
+                       }
                        break;
 
                case EVENT_UNREGISTER:
-                       DPRINTF("EVENT_UNREGISTER\n");
+                       {
+                               struct event *e = (struct event*)(wdheader->data);
+
+                               DPRINTF("EVENT_UNREGISTER\n");
 #ifndef NO_WINDRVR
-                       ret = (*ioctl_func) (fd, request, wdioctl);
+                               ret = (*ioctl_func) (fd, request, wdioctl);
+#else
+                               ret = xpcu_close(e);
 #endif
+                       }
                        break;
 
                case INT_WAIT:
@@ -534,7 +350,7 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
                        {
                                struct interrupt *it = (struct interrupt*)(wdheader->data);
 
-                               DPRINTF("Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n",
+                               DPRINTF("-> Handle: 0x%lx, 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);
@@ -542,20 +358,10 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
 #ifndef NO_WINDRVR
                                ret = (*ioctl_func) (fd, request, wdioctl);
 #else
-                               if (usbdevice) {
-                                       if (it->dwCounter == 0) {
-                                               it->dwCounter = 1;
-                                       } else {
-                                               pthread_mutex_lock(&int_wait);
-                                               pthread_mutex_unlock(&int_wait);
-                                       }
-                               } else {
-                                       pthread_mutex_lock(&int_wait);
-                                       pthread_mutex_unlock(&int_wait);
-                               }
+                               ret = xpcu_int_wait(it);
 #endif
 
-                               DPRINTF("INT_WAIT_RETURN: Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n",
+                               DPRINTF("<- INT_WAIT_RETURN: Handle: 0x%lx, 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);
@@ -564,9 +370,25 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
 
                case CARD_UNREGISTER:
                        DPRINTF("CARD_UNREGISTER\n");
+                       {
+                               struct card_register* cr = (struct card_register*)(wdheader->data);
+
+                               DPRINTF("-> Addr: 0x%lx, bytes: %lu, bar: %lu\n",
+                               (unsigned long)cr->Card.Item[0].I.IO.dwAddr,
+                               cr->Card.Item[0].I.IO.dwBytes,
+                               cr->Card.Item[0].I.IO.dwBar);
+
+                               DPRINTF("-> hCard: %lu\n", cr->hCard);
+
 #ifndef NO_WINDRVR
-                       ret = (*ioctl_func) (fd, request, wdioctl);
+                               ret = (*ioctl_func) (fd, request, wdioctl);
+#else
+                               if (pport)
+                                       pport->close(cr->hCard);
+
+                               pport = NULL;
 #endif
+                       }
                        break;
 
                case EVENT_PULL:
@@ -576,7 +398,7 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
 #ifdef DEBUG
                                int i;
 
-                               DPRINTF("handle: %lu, action: %lu, status: %lu, eventid: %lu, cardtype: %lx, kplug: %lu, options: %lu, dev: %lx:%lx, unique: %lu, ver: %lu, nummatch: %lu\n",
+                               DPRINTF("-> handle: 0x%lx, action: %lu, status: %lu, eventid: %lu, cardtype: %lx, kplug: %lu, options: %lu, dev: %lx:%lx, unique: 0x%lx, ver: %lu, nummatch: %lu\n",
                                e->handle, e->dwAction, e->dwStatus,
                                e->dwEventId, e->dwCardType, e->hKernelPlugIn,
                                e->dwOptions, e->u.Usb.deviceId.dwVendorId,
@@ -585,7 +407,7 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
                                e->dwNumMatchTables);
 
                                for (i = 0; i < e->dwNumMatchTables; i++)
-                                       DPRINTF("match: dev: %04x:%04x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n",
+                                       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,
@@ -598,25 +420,11 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
 #ifndef NO_WINDRVR
                                ret = (*ioctl_func) (fd, request, wdioctl);
 #else
-                               if (usbdevice) {
-                                       struct usb_interface *interface = usbdevice->config->interface;
-
-                                       e->dwCardType = card_type;
-                                       e->dwAction = 1;
-                                       e->dwEventId = 109;
-                                       e->u.Usb.dwUniqueID = 110;
-                                       e->matchTables[0].VendorId = usbdevice->descriptor.idVendor;
-                                       e->matchTables[0].ProductId = usbdevice->descriptor.idProduct;
-                                       e->matchTables[0].bDeviceClass = usbdevice->descriptor.bDeviceClass;
-                                       e->matchTables[0].bDeviceSubClass = usbdevice->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;
-                               }
+                               ret = xpcu_found(e);
 #endif
 
 #ifdef DEBUG
-                               DPRINTF("handle: %lu, action: %lu, status: %lu, eventid: %lu, cardtype: %lx, kplug: %lu, options: %lu, dev: %lx:%lx, unique: %lu, ver: %lu, nummatch: %lu\n",
+                               DPRINTF("<- handle: 0x%lx, action: %lu, status: %lu, eventid: %lu, cardtype: %lx, kplug: %lu, options: %lu, dev: %lx:%lx, unique: 0x%lx, ver: %lu, nummatch: %lu\n",
                                e->handle, e->dwAction, e->dwStatus,
                                e->dwEventId, e->dwCardType, e->hKernelPlugIn,
                                e->dwOptions, e->u.Usb.deviceId.dwVendorId,
@@ -625,7 +433,7 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
                                e->dwNumMatchTables);
 
                                for (i = 0; i < e->dwNumMatchTables; i++)
-                                       DPRINTF("match: dev: %04x:%04x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n",
+                                       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,
@@ -649,10 +457,10 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
        return ret;
 }
 
-int ioctl(int fd, int request, ...) {
+int ioctl(int fd, unsigned long int request, ...) {
        va_list args;
        void *argp;
-       int ret;
+       int i;
 
        if (!ioctl_func)                                                                    
                ioctl_func = (int (*) (int, int, void *)) dlsym (RTLD_NEXT, "ioctl");             
@@ -661,12 +469,12 @@ int ioctl(int fd, int request, ...) {
        argp = va_arg (args, void *);
        va_end (args);
 
-       if (fd == windrvrfd)
-               ret = do_wdioctl(fd, request, argp);
-       else
-               ret = (*ioctl_func) (fd, request, argp);
+       for (i = 0; i < windrvrfds_count; i++) {
+               if (fd == windrvrfds[i])
+                       return do_wdioctl(fd, request, argp);
+       }
 
-       return ret;
+       return (*ioctl_func) (fd, request, argp);
 }
 
 int open (const char *pathname, int flags, ...) {
@@ -685,19 +493,16 @@ int open (const char *pathname, int flags, ...) {
        }
 
        if (!strcmp (pathname, "/dev/windrvr6")) {
-               DPRINTF("opening windrvr6\n");
+               DPRINTF("opening windrvr6 (%d)\n", windrvrfds_count);
+               windrvrfds = realloc(windrvrfds, sizeof(int) * (++windrvrfds_count));
+               if (!windrvrfds)
+                       return -ENOMEM;
+
 #ifdef NO_WINDRVR
-               windrvrfd = fd = (*func) ("/dev/null", flags, mode);
+               windrvrfds[windrvrfds_count-1] = fd = (*func) ("/dev/null", flags, mode);
 #else
-               windrvrfd = fd = (*func) (pathname, flags, mode);
+               windrvrfds[windrvrfds_count-1] = fd = (*func) (pathname, flags, mode);
 #endif
-               if (!busses) {
-                       usb_init();
-                       usb_find_busses();
-                       usb_find_devices();
-
-                       busses = usb_get_busses();
-               }
 
                return fd;
        }
@@ -707,13 +512,22 @@ int open (const char *pathname, int flags, ...) {
 
 int close(int fd) {
        static int (*func) (int) = NULL;
+       int i;
 
        if (!func)
                func = (int (*) (int)) dlsym(RTLD_NEXT, "close");
        
-       if (fd == windrvrfd && windrvrfd >= 0) {
-               DPRINTF("close windrvrfd\n");
-               windrvrfd = -1;
+       for (i = 0; i < windrvrfds_count; i++) {
+               if (fd == windrvrfds[i] && windrvrfds[i] >= 0) {
+                       int remaining = windrvrfds_count - (i + 1);
+                       DPRINTF("close windrvr6 (%d)\n", i);
+                       if (remaining)
+                               memmove(&(windrvrfds[i]), &(windrvrfds[i+1]), remaining * sizeof(int));
+                       windrvrfds = realloc(windrvrfds, sizeof(int) * --windrvrfds_count);
+                       if (!windrvrfds_count)
+                               windrvrfds = NULL;
+                       break;
+               }
        }
 
        return (*func) (fd);
@@ -722,14 +536,41 @@ int close(int fd) {
 FILE *fopen(const char *path, const char *mode) {
        FILE *ret;
        static FILE* (*func) (const char*, const char*) = NULL;
+       char buf[256];
+       int i;
 
        if (!func)
                func = (FILE* (*) (const char*, const char*)) dlsym(RTLD_NEXT, "fopen");
 
+       for (i = 0; i < 4; i++) {
+               snprintf(buf, sizeof(buf), "/proc/sys/dev/parport/parport%d/base-addr", i);
+               if (!strcmp(path, buf)) {
+                       DPRINTF("open base-addr of parport%d\n", i);
+                       if (config_is_real_pport(i)) {
+                               ret = (*func) (path, mode);
+                       } else {
+                               ret = (*func) ("/dev/null", mode);
+                       }
+
+                       if (ret) {
+                               baseaddrfp = ret;
+                               baseaddrnum = i;
+                       }
+
+                       return ret;
+               }
+       }
+
        ret = (*func) (path, mode);
 
-       if (!strcmp (path, "/proc/modules")) {
+       if (!strcmp(path, "/proc/modules")) {
                DPRINTF("opening /proc/modules\n");
+               if (!ret && errno == ENOENT) {
+                       /* Hmm.. there appears to be no /proc/modules file
+                        * fake it then */
+                       ret = (*func)("/dev/null", mode);
+                       DPRINTF("No /proc/modules -- faking\n");
+               }
 #ifdef NO_WINDRVR
                modulesfp = ret;
                modules_read = 0;
@@ -742,6 +583,7 @@ FILE *fopen(const char *path, const char *mode) {
 char *fgets(char *s, int size, FILE *stream) {
         static char* (*func) (char*, int, FILE*) = NULL;
        const char modules[][256] = {"windrvr6 1 0 - Live 0xdeadbeef\n", "parport_pc 1 0 - Live 0xdeadbeef\n"};
+       char buf[256];
        char *ret = NULL;
 
 
@@ -749,11 +591,16 @@ char *fgets(char *s, int size, FILE *stream) {
                func = (char* (*) (char*, int, FILE*)) dlsym(RTLD_NEXT, "fgets");
        
        if (modulesfp == stream) {
-               if (modules_read < sizeof(modules)) {
+               if (modules_read < sizeof(modules) / sizeof(modules[0])) {
                        strcpy(s, modules[modules_read]);
                        ret = s;
                        modules_read++;
                }
+       } else if (baseaddrfp == stream) {
+               snprintf(s, sizeof(buf), "%d\t%d\n",
+                       (baseaddrnum) * 0x10,
+                       ((baseaddrnum) * 0x10) + 0x400);
+               ret = s;
        } else {
                ret = (*func)(s,size,stream);
        }
@@ -770,6 +617,10 @@ int fclose(FILE *fp) {
        if (fp == modulesfp) {
                modulesfp = NULL;
        }
+
+       if (fp == baseaddrfp) {
+               baseaddrfp = NULL;
+       }
        
        return (*func)(fp);
 }
@@ -779,10 +630,166 @@ int access(const char *pathname, int mode) {
 
        if (!func)
                func = (int (*) (const char*, int)) dlsym(RTLD_NEXT, "access");
-       
-       if (!strcmp(pathname, "/dev/windrvr6")) {
+
+       if (pathname && !strcmp(pathname, "/dev/windrvr6")) {
                return 0;
        } else {
                return (*func)(pathname, mode);
        }
 }
+
+#if 0
+/* USB cable sharing needs to overload semop, TODO! */
+int semop (int __semid, struct sembuf *__sops, size_t __nsops) {
+       static int (*func) (int, struct sembuf*, size_t) = NULL;
+       int i;
+
+       if (!func)
+               func = (int (*) (int, struct sembuf*, size_t)) dlsym(RTLD_NEXT, "semop");
+       
+       fprintf(stderr,"semop: semid: 0x%X, elements: %d\n", __semid, __nsops);
+       for (i = 0; i < __nsops; i++) {
+               fprintf(stderr, " num: %u, op: %d, flg: %d\n", __sops[i].sem_num, __sops[i].sem_op, __sops[i].sem_flg);
+               if (__sops[i].sem_op < 0) {
+                       fprintf(stderr, "SEMAPHORE LOCK\n");
+               } else {
+                       fprintf(stderr, "SEMAPHORE UNLOCK\n");
+               }
+       }
+
+       return (*func)(__semid, __sops, __nsops);
+}
+#endif
+
+/*
+ * Ugly hack for ISE 12. Preload doesn't seem to work correctly for
+ * libImpactComm.so. Even though the file is still read with fopen(),
+ * the version from libc is used and not the one from this file.
+ * Replace the function calling fopen() instead...
+ * echo '_Z14isModuleLoadedPci' | c++filt
+ */
+long int _Z14isModuleLoadedPci(char *module_name, int i) {
+       DPRINTF("_Z14isModuleLoadedPci: Checking for module %s (%d)\n", module_name, i);
+
+       return 1;
+}
+
+void cpr_segv_handler(int sig, siginfo_t *info, void *context) {
+       void *newmem;
+
+       DPRINTF("SEGV at %p, mapping memory\n", info->si_addr);
+       errno = 0;
+       newmem = mmap(info->si_addr, 1, PROT_READ, MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED, -1, 0);
+       if (newmem != info->si_addr) {
+               perror("libusb-driver.so: Can't map memory, crashing now");
+               exit(EXIT_FAILURE);
+       }
+}
+
+/* XilCommNS::CPortResources::Instance() */
+void* _ZN9XilCommNS14CPortResources8InstanceEv() {
+       static void* (*func) (void) = NULL;
+       char *filename = NULL;
+       void *ret;
+       int i;
+
+       if (!func) {
+               struct sigaction act, oldact;
+               int sighand_installed = 0;
+
+               func = (void* (*) (void)) dlsym(RTLD_NEXT, "_ZN9XilCommNS14CPortResources8InstanceEv");
+
+               DPRINTF("Installing signal-handler for SIGSEGV\n");
+               bzero(&act, sizeof(struct sigaction));
+               act.sa_sigaction = cpr_segv_handler;
+               act.sa_flags = SA_SIGINFO;
+               if (sigaction(SIGSEGV, &act, &oldact) == 0) {
+                       sighand_installed = 1;
+               }
+
+               DPRINTF("Searching for filename starting at %p\n", func);
+               for(i = 0; i < 32768; i++) {
+                       if (!strcmp(((char*)func)+i, "/proc/sys/dev/parport/%s/base-addr")) {
+                               filename = ((char*)func)+i;
+                               DPRINTF("Filename found at offset %p\n", (void*)(filename - ((char*)func)));
+                               break;
+                       }
+               }
+               if (sighand_installed) {
+                       DPRINTF("Restoring signal-handler for SIGSEGV\n");
+                       sigaction(SIGSEGV, &oldact, NULL);
+               }
+               if (!filename)
+                       fprintf(stderr, "libusb-driver.so: Can't find memory to patch, parallel cables will probably not work!\n");
+       }
+
+       if (filename) {
+               long pagesize;
+               size_t protectlen;
+               void *start;
+               int len = strlen(filename) + 1;
+               int ret;
+
+               pagesize = sysconf(_SC_PAGE_SIZE);
+               DPRINTF("You have %lu bytes sized pages!\n", pagesize);
+
+               start = (void*)((long)filename & (~(pagesize-1)));
+
+               protectlen = pagesize;
+               if ((long)(filename + len) > (long)(start + protectlen))
+                       protectlen += pagesize;
+
+               DPRINTF("Unprotecting %zd bytes starting at %p\n", protectlen, start);
+               ret = mprotect(start, protectlen, PROT_READ|PROT_WRITE);
+               if (ret == -1)
+                       perror("mprotect");
+
+               DPRINTF("Replacing %s with /dev/zero\n", filename);
+               strcpy(filename, "/dev/zero");
+
+               DPRINTF("Reprotecting %zd bytes starting at %p\n", protectlen, start);
+               ret = mprotect(start, protectlen, PROT_READ|PROT_EXEC);
+               if (ret == -1)
+                       perror("mprotect");
+       }
+
+       DPRINTF("-> XilCommNS::CPortResources::Instance()\n");
+
+       ret = func();
+
+       DPRINTF("<- XilCommNS::CPortResources::Instance()\n");
+
+       return ret;
+}
+
+static void __attribute__ ((constructor)) libusbdriver_init(void) {
+       int i;
+       char buf[256];
+       char buf2[256];
+
+       for (i = 0; i < 4; i++) {
+               snprintf(buf, sizeof(buf), "XIL_IMPACT_ENV_LPT%d_BASE_ADDRESS", i+1);
+               snprintf(buf2, sizeof(buf2), "%x", 0x10*i);
+               setenv(buf, buf2, 1);
+               snprintf(buf, sizeof(buf), "XIL_IMPACT_ENV_LPT%d_ECP_ADDRESS", i+1);
+               snprintf(buf2, sizeof(buf2), "%x", (0x10*i)+0x400);
+               setenv(buf, buf2, 1);
+       }
+
+       setenv("XIL_IMPACT_USE_LIBUSB", "0", 1);
+       setenv("XIL_IMPACT_USE_WINDRIVER", "1", 1);
+
+       #if __WORDSIZE == 32
+       {
+               struct utsname un;
+               int ret;
+
+               ret = uname(&un);
+
+               if (ret == 0 && (!strcmp(un.machine, "x86_64"))) {
+                       DPRINTF("setting 32bit personality\n");
+                       (long)syscall(SYS_personality, PER_LINUX32);
+               }
+       }
+       #endif
+}
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