]> git.zerfleddert.de Git - usb-driver/blobdiff - usb-driver.c
Update website for ISE 13
[usb-driver] / usb-driver.c
index cae2ab12a5aeb09b5446cfa39700f5dbbbebffec..3b8b51d4747d2f8c9edf631f627171000268d78d 100644 (file)
@@ -1,13 +1,28 @@
-#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
+/* libusb/ppdev connector for XILINX impact
+ *
+ * Copyright (c) 2007 Michael Gernoth <michael@gernoth.net>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
 
 #define _GNU_SOURCE 1
 
 
 #define _GNU_SOURCE 1
 
-#if defined(RTLD_NEXT)
-#define REAL_LIBC RTLD_NEXT
-#else
-#define REAL_LIBC ((void *) -1L)
-#endif
-
 #include <dlfcn.h>
 #include <stdarg.h>
 #include <stdlib.h>
 #include <dlfcn.h>
 #include <stdarg.h>
 #include <stdlib.h>
 #include <sys/stat.h>
 #include <sys/time.h>
 #include <stdio.h>
 #include <sys/stat.h>
 #include <sys/time.h>
 #include <stdio.h>
+#include <signal.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 *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;
+
+#define NO_WINDRVR 1
+
+void hexdump(unsigned char *buf, int len, char *prefix) {
+       int i = 0;
+
+       fprintf(stderr, "%s %03x: ", prefix, i);
+       for(i = 0; i<len; i++) {
+               fprintf(stderr,"%02x ", buf[i]);
+               if ((i % 16) == 7)
+                       fprintf(stderr," ");
+               if (((i % 16) == 15) && ((i+1) < len))
+                       fprintf(stderr,"\n%s %03x: ", prefix, i+1);
+       }
+       fprintf(stderr,"\n");
+}
 
 
-#define SNIFFLEN 4096
 
 
-void hexdump(unsigned char *buf, int len);
+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;
+
+       if (wdheader->magic != MAGIC) {
+               fprintf(stderr,"!!!ERROR: magic header does not match!!!\n");
+               return (*ioctl_func) (fd, request, wdioctl);
+       }
+
+       switch(request & ~(0xc0000000)) {
+               case VERSION:
+                       version = (struct version_struct*)(wdheader->data);
+                       strcpy(version->version, "libusb-driver.so version: " USB_DRIVER_VERSION);
+                       version->versionul = 802;
+                       DPRINTF("VERSION\n");
+                       break;
 
 
-struct header_struct {
-       unsigned long dwHeader;
-       void* data;
-       unsigned long dwSize;
-};
+               case LICENSE:
+                       DPRINTF("LICENSE\n");
+                       break;
 
 
-struct version_struct {
-       unsigned long versionul;
-       char version[128];
-};
+               case CARD_REGISTER_OLD:
+               case CARD_REGISTER:
+                       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;
 
 
-struct license_struct {
-    char cLicense[128]; // Buffer with license string to put.
-                      // If empty string then get current license setting
-                      // into dwLicense.
-    unsigned long dwLicense;  // Returns license settings: LICENSE_DEMO, LICENSE_WD
-                      // etc..., or 0 for invalid license.
-    unsigned long dwLicense2; // Returns additional license settings, if dwLicense
-                      // could not hold all the information.
-                      // Then dwLicense will return 0.
-};
+                               pport = config_get((unsigned long)cr->Card.Item[0].I.IO.dwAddr / 0x10);
+                               if (!pport)
+                                       break;
 
 
-#define WD_IOCTL_HEADER_CODE 0xa410b413UL
+                               ret = pport->open((unsigned long)cr->Card.Item[0].I.IO.dwAddr / 0x10);
 
 
-void parse_wdioctlreq(unsigned char *wdioctl, unsigned int request) {
-       struct header_struct* wdheader = (struct header_struct*)wdioctl;
+                               ppbase = (unsigned long)cr->Card.Item[0].I.IO.dwAddr;
 
 
-       if (wdheader->dwHeader != WD_IOCTL_HEADER_CODE) {
-               fprintf(stderr,"!!!ERROR: Header does not match!!!\n");
-               return;
-       }
+                               if (cr->Card.dwItems > 1 && cr->Card.Item[1].I.IO.dwAddr)
+                                       ecpbase = (unsigned long)cr->Card.Item[1].I.IO.dwAddr;
 
 
-       fprintf(stderr, "Request: ");
-       switch(request) {
-               case 0x910:
-                       fprintf(stderr,"IOCTL_WD_VERSION");
-                       //fprintf(stderr," %s(%d)", ((struct version_struct*)(wdheader->data))->version, ((struct version_struct*)(wdheader->data))->versionul);
-                       break;
-               case 0x952:
-                       fprintf(stderr,"IOCTL_WD_LICENSE");
+                               if (ret >= 0) {
+                                       cr->hCard = ret;
+                               } else {
+                                       cr->hCard = 0;
+                               }
+#endif
+                               DPRINTF("<-hCard: %lu\n", cr->hCard);
+                       }
                        break;
                        break;
-               case 0x98c:
-                       fprintf(stderr,"IOCTL_WD_TRANSFER");
+
+               case USB_TRANSFER:
+                       DPRINTF("USB_TRANSFER\n");
+                       {
+                               struct usb_transfer *ut = (struct usb_transfer*)(wdheader->data);
+
+#ifdef DEBUG
+                               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);
+                               if (ut->dwPipeNum == 0) {
+                                       DPRINTF("-> setup packet:");
+                                       hexdump(ut->SetupPacket, 8, "");
+                               }
+
+                               if (!ut->fRead && ut->dwBufferSize)
+                               {
+                                       hexdump(ut->pBuffer, ut->dwBufferSize, "->");
+                               }
+#endif
+
+#ifndef NO_WINDRVR
+                               ret = (*ioctl_func) (fd, request, wdioctl);
+#else
+                               ret = xpcu_transfer(ut);
+#endif
+
+#ifdef DEBUG
+                               DPRINTF("Transferred: %lu (%s)\n",ut->dwBytesTransferred, (ut->fRead?"read":"write"));
+                               if (ut->fRead && ut->dwBytesTransferred)
+                               {
+                                       hexdump(ut->pBuffer, ut->dwBytesTransferred, "<-");
+                               }
+#endif
+                       }
                        break;
                        break;
-               case 0x983:
-                       fprintf(stderr,"IOCTL_WDU_TRANSFER");
+
+               case INT_ENABLE_OLD:
+               case INT_ENABLE:
+                       DPRINTF("INT_ENABLE\n");
+                       {
+                               struct interrupt *it = (struct interrupt*)(wdheader->data);
+
+                               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
+                               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;
                        break;
-               case 0x987:
-                       fprintf(stderr,"IOCTL_WD_EVENT_UNREGISTER");
+                       
+               case INT_DISABLE:
+                       DPRINTF("INT_DISABLE\n");
+                       {
+                               struct interrupt *it = (struct interrupt*)(wdheader->data);
+
+                               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
+                               ret = xpcu_int_state(it, DISABLE_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;
                        break;
-               case 0x91f:
-                       fprintf(stderr,"IOCTL_WD_INT_DISABLE");
+
+               case USB_SET_INTERFACE:
+                       DPRINTF("USB_SET_INTERFACE\n");
+                       {
+                               struct usb_set_interface *usi = (struct usb_set_interface*)(wdheader->data);
+
+                               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
+                               ret = xpcu_set_interface(usi);
+#endif
+                               DPRINTF("<- unique: 0x%lx, interfacenum: %lu, alternatesetting: %lu, options: %lx\n",
+                               usi->dwUniqueID, usi->dwInterfaceNum,
+                               usi->dwAlternateSetting, usi->dwOptions);
+                       }
                        break;
                        break;
-               case 0x94b:
-                       fprintf(stderr,"IOCTL_WD_INT_WAIT");
+
+               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);
+
+                               DPRINTF("-> unique: 0x%lx, bytes: %lu, options: %lx\n",
+                               ugdd->dwUniqueID, ugdd->dwBytes,
+                               ugdd->dwOptions);
+
+                               ret = xpcu_deviceinfo(ugdd);
+
+                       }
                        break;
                        break;
-               case 0x92b:
-                       fprintf(stderr,"IOCTL_WD_CARD_UNREGISTER");
+
+               case EVENT_REGISTER_OLD:
+               case EVENT_REGISTER:
+                       DPRINTF("EVENT_REGISTER\n");
+                       {
+                               struct event *e = (struct event*)(wdheader->data);
+#ifdef DEBUG
+                               int i;
+#endif
+
+                               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,
+                               e->u.Usb.deviceId.dwVendorId,
+                               e->u.Usb.deviceId.dwProductId,
+                               e->u.Usb.dwUniqueID, e->dwEventVer,
+                               e->dwNumMatchTables);
+
+#ifndef NO_WINDRVR
+                               ret = (*ioctl_func) (fd, request, wdioctl);
+#else
+                               ret = xpcu_find(e);
+#endif
+
+#ifdef DEBUG
+                               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,
+                               e->u.Usb.deviceId.dwVendorId,
+                               e->u.Usb.deviceId.dwProductId,
+                               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);
+#endif
+                       }
                        break;
                        break;
-               case 0x9a7:
-                       fprintf(stderr,"IOCTL_WDU_GET_DEVICE_DATA");
+
+               case TRANSFER_OLD:
+               case TRANSFER:
+                       DPRINTF("TRANSFER\n");
+                       {
+                               WD_TRANSFER *tr = (WD_TRANSFER*)(wdheader->data);
+
+#ifndef NO_WINDRVR
+                               ret = (*ioctl_func) (fd, request, wdioctl);
+#else
+                               ret = pport->transfer(tr, fd, request, ppbase, ecpbase, 1);
+#endif
+                       }
                        break;
                        break;
-               case 0x98e:
-                       fprintf(stderr,"IOCTL_WD_INT_ENABLE");
+
+               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;
                        break;
-               case 0x988:
-                       fprintf(stderr,"IOCTL_WD_EVENT_PULL");
+
+               case EVENT_UNREGISTER:
+                       {
+                               struct event *e = (struct event*)(wdheader->data);
+
+                               DPRINTF("EVENT_UNREGISTER\n");
+#ifndef NO_WINDRVR
+                               ret = (*ioctl_func) (fd, request, wdioctl);
+#else
+                               ret = xpcu_close(e);
+#endif
+                       }
                        break;
                        break;
-               case 0x981:
-                       fprintf(stderr,"IOCTL_WDU_SET_INTERFACE");
+
+               case INT_WAIT:
+                       DPRINTF("INT_WAIT\n");
+                       {
+                               struct interrupt *it = (struct interrupt*)(wdheader->data);
+
+                               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
+                               ret = xpcu_int_wait(it);
+#endif
+
+                               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);
+                       }
                        break;
                        break;
-               default:
-                       fprintf(stderr,"Unknown(%x)",request);
-       }
 
 
-       fprintf(stderr, ", size: %d\n", wdheader->dwSize);
-}
+               case CARD_UNREGISTER:
+                       DPRINTF("CARD_UNREGISTER\n");
+                       {
+                               struct card_register* cr = (struct card_register*)(wdheader->data);
 
 
-void parse_wdioctlans(unsigned char *wdioctl, unsigned int request, int result) {
-       struct header_struct* wdheader = (struct header_struct*)wdioctl;
+                               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);
 
 
-       if (wdheader->dwHeader != WD_IOCTL_HEADER_CODE) {
-               fprintf(stderr,"!!!ERROR: Header does not match!!!\n");
-               return;
-       }
+                               DPRINTF("-> hCard: %lu\n", cr->hCard);
+
+#ifndef NO_WINDRVR
+                               ret = (*ioctl_func) (fd, request, wdioctl);
+#else
+                               if (pport)
+                                       pport->close(cr->hCard);
 
 
-       fprintf(stderr, "Answer: %d ", result);
-       switch(request) {
-               case 0x910:
-                       fprintf(stderr,"\"%s\" (%d)", ((struct version_struct*)(wdheader->data))->version, ((struct version_struct*)(wdheader->data))->versionul);
+                               pport = NULL;
+#endif
+                       }
                        break;
                        break;
-               case 0x952:
-                       fprintf(stderr,"\"%s\" (XX,XX)", ((struct license_struct*)(wdheader->data))->cLicense);
+
+               case EVENT_PULL:
+                       DPRINTF("EVENT_PULL\n");
+                       {
+                               struct event *e = (struct event*)(wdheader->data);
+#ifdef DEBUG
+                               int i;
+
+                               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,
+                               e->u.Usb.deviceId.dwProductId,
+                               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);
+#endif
+
+#ifndef NO_WINDRVR
+                               ret = (*ioctl_func) (fd, request, wdioctl);
+#else
+                               ret = xpcu_found(e);
+#endif
+
+#ifdef DEBUG
+                               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,
+                               e->u.Usb.deviceId.dwProductId,
+                               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);
+#endif
+
+                       }
                        break;
                        break;
+
                default:
                default:
+                       fprintf(stderr,"!!!Unsupported IOCTL: %x!!!\n", request);
+#ifndef NO_WINDRVR
+                       ret = (*ioctl_func) (fd, request, wdioctl);
+#endif
                        break;
        }
                        break;
        }
-       fprintf(stderr, "\n");
+
+       return ret;
 }
 
 }
 
+int ioctl(int fd, unsigned long int request, ...) {
+       va_list args;
+       void *argp;
+       int i;
 
 
-typedef int (*open_funcptr_t) (const char *, int, mode_t);
+       if (!ioctl_func)                                                                    
+               ioctl_func = (int (*) (int, int, void *)) dlsym (RTLD_NEXT, "ioctl");             
 
 
-static windrvrfd = 0;
-static void* mmapped = NULL;
-static size_t mmapplen = 0;
+       va_start (args, request);
+       argp = va_arg (args, void *);
+       va_end (args);
 
 
-int open (const char *pathname, int flags, ...)
-{
-       static open_funcptr_t func = NULL;
+       for (i = 0; i < windrvrfds_count; i++) {
+               if (fd == windrvrfds[i])
+                       return do_wdioctl(fd, request, argp);
+       }
+
+       return (*ioctl_func) (fd, request, argp);
+}
+
+int open (const char *pathname, int flags, ...) {
+       static int (*func) (const char *, int, mode_t) = NULL;
        mode_t mode = 0;
        va_list args;
        int fd;
 
        if (!func)
        mode_t mode = 0;
        va_list args;
        int fd;
 
        if (!func)
-               func = (open_funcptr_t) dlsym (REAL_LIBC, "open");
+               func = (int (*) (const char *, int, mode_t)) dlsym (RTLD_NEXT, "open");
 
        if (flags & O_CREAT) {
                va_start(args, flags);
 
        if (flags & O_CREAT) {
                va_start(args, flags);
@@ -146,126 +492,304 @@ int open (const char *pathname, int flags, ...)
                va_end(args);
        }
 
                va_end(args);
        }
 
-       fd = (*func) (pathname, flags, mode);
-
        if (!strcmp (pathname, "/dev/windrvr6")) {
        if (!strcmp (pathname, "/dev/windrvr6")) {
-               fprintf(stderr,"opening windrvr6\n");
-               windrvrfd = fd;
+               DPRINTF("opening windrvr6 (%d)\n", windrvrfds_count);
+               windrvrfds = realloc(windrvrfds, sizeof(int) * (++windrvrfds_count));
+               if (!windrvrfds)
+                       return -ENOMEM;
+
+#ifdef NO_WINDRVR
+               windrvrfds[windrvrfds_count-1] = fd = (*func) ("/dev/null", flags, mode);
+#else
+               windrvrfds[windrvrfds_count-1] = fd = (*func) (pathname, flags, mode);
+#endif
+
+               return fd;
        }
 
        }
 
-       return fd;
+       return (*func) (pathname, flags, mode);
 }
 
 }
 
-void diff(unsigned char *buf1, unsigned char *buf2, int len) {
+int close(int fd) {
+       static int (*func) (int) = NULL;
        int i;
 
        int i;
 
-       for(i=0; i<len; i++) {
-               if (buf1[i] != buf2[i]) {
-                       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]:'.'));
+       if (!func)
+               func = (int (*) (int)) dlsym(RTLD_NEXT, "close");
+       
+       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);
 }
 
 }
 
-void hexdump(unsigned char *buf, int len) {
+FILE *fopen(const char *path, const char *mode) {
+       FILE *ret;
+       static FILE* (*func) (const char*, const char*) = NULL;
+       char buf[256];
        int i;
 
        int i;
 
-       for(i=0; i<len; i++) {
-               fprintf(stderr,"%02x ", buf[i]);
-               if ((i % 16) == 15)
-                       fprintf(stderr,"\n");
+       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;
+               }
        }
        }
-}
 
 
-int ioctl(int fd, int request, ...)
-{
-       static int (*func) (int, int, void *) = NULL;
-       va_list args;
-       void *argp;
-       unsigned char prebuf[SNIFFLEN];
-       int ret;
+       ret = (*func) (path, mode);
 
 
-       if (!func)                                                                    
-               func = (int (*) (int, int, void *)) dlsym (REAL_LIBC, "ioctl");             
+       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;
+#endif
+       }
 
 
-       va_start (args, request);
-       argp = va_arg (args, void *);
-       va_end (args);
+       return ret;
+}
 
 
-       if (fd == windrvrfd) {
-               memcpy(prebuf, argp, SNIFFLEN);
-               parse_wdioctlreq(argp, request);
-       }
+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;
 
 
-       ret = (*func) (fd, request, argp);
 
 
-       if (fd == windrvrfd) {
-               parse_wdioctlans(argp, request, ret);
+       if (!func)
+               func = (char* (*) (char*, int, FILE*)) dlsym(RTLD_NEXT, "fgets");
+       
+       if (modulesfp == stream) {
+               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);
        }
        }
+
        return ret;
 }
 
        return ret;
 }
 
-void *mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset)
-{
-       static void* (*func) (void *, size_t, int, int, int, off_t) = NULL;
-       void *ret;
+int fclose(FILE *fp) {
+       static int (*func) (FILE*) = NULL;
 
        if (!func)
 
        if (!func)
-               func = (void* (*) (void *, size_t, int, int, int, off_t)) dlsym (REAL_LIBC, "mmap");
+               func = (int (*) (FILE*)) dlsym(RTLD_NEXT, "fclose");
 
 
-       ret = (*func) (start, length, prot, flags, fd, offset);
-       fprintf(stderr,"MMAP: %x, %d, %d, %d, %d, %d -> %x\n", (unsigned int)start, length, prot, flags, fd, offset, (unsigned int)ret);
-       mmapped = ret;
-       mmapplen = length;
+       if (fp == modulesfp) {
+               modulesfp = NULL;
+       }
 
 
-       return ret;
+       if (fp == baseaddrfp) {
+               baseaddrfp = NULL;
+       }
+       
+       return (*func)(fp);
 }
 
 }
 
-void *mmap64(void *start, size_t length, int prot, int flags, int fd, off64_t offset)
-{
-       static void* (*func) (void *, size_t, int, int, int, off64_t) = NULL;
-       void *ret;
+int access(const char *pathname, int mode) {
+       static int (*func) (const char*, int);
 
        if (!func)
 
        if (!func)
-               func = (void* (*) (void *, size_t, int, int, int, off64_t)) dlsym (REAL_LIBC, "mmap64");
-
-       ret = (*func) (start, length, prot, flags, fd, offset);
-       fprintf(stderr,"MMAP64: %x, %d, %d, %d, %d, %lld -> %x\n", (unsigned int)start, length, prot, flags, fd, offset, (unsigned int)ret);
-       mmapped = ret;
-       mmapplen = length;
+               func = (int (*) (const char*, int)) dlsym(RTLD_NEXT, "access");
 
 
-       return ret;
+       if (pathname && !strcmp(pathname, "/dev/windrvr6")) {
+               return 0;
+       } else {
+               return (*func)(pathname, mode);
+       }
 }
 
 }
 
-void *mmap2(void *start, size_t length, int prot, int flags, int fd, off_t pgoffset)
-{
-       static void* (*func) (void *, size_t, int, int, int, off_t) = NULL;
-       void *ret;
+#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)
 
        if (!func)
-               func = (void* (*) (void *, size_t, int, int, int, off_t)) dlsym (REAL_LIBC, "mmap2");
+               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");
+               }
+       }
 
 
-       ret = (*func) (start, length, prot, flags, fd, pgoffset);
-       fprintf(stderr,"MMAP2: %x, %d, %d, %d, %d, %d -> %x\n", (unsigned int)start, length, prot, flags, fd, pgoffset, (unsigned int)ret);
-       mmapped = ret;
-       mmapplen = length;
+       return (*func)(__semid, __sops, __nsops);
+}
+#endif
 
 
-       return ret;
+/*
+ * 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);
+       }
 }
 
 }
 
-void *malloc(size_t size)
-{
-       static void* (*func) (size_t) = NULL;
+/* XilCommNS::CPortResources::Instance() */
+void* _ZN9XilCommNS14CPortResources8InstanceEv() {
+       static void* (*func) (void) = NULL;
+       char *filename = NULL;
        void *ret;
        void *ret;
+       int i;
 
 
-       if (!func)
-               func = (void* (*) (size_t)) dlsym(REAL_LIBC, "malloc");
-       
-       ret = (*func) (size);
-       
-       //fprintf(stderr,"MALLOC: %d -> %x\n", size, (unsigned int) ret);
+       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;
 }
 
 
        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);
+       }
 
 
-#endif
+       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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