jackcartersmith/xilinx-usb-driver
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full support for parallel ports on ISE 12

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This commit is contained in:
Michael Gernoth 2010-05-24 14:33:38 +02:00
parent 765c485a06
commit a90dd20702
2 changed files with 47 additions and 17 deletions
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3
index.html
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@ -59,8 +59,7 @@
<kbd>sed -i -e 's/TEMPNODE/tempnode/' -e 's/SYSFS/ATTRS/g' -e 's/BUS/SUBSYSTEMS/' /etc/udev/rules.d/xusbdfwu.rules</kbd><BR>
You may have to reboot for this change to take effect.</P></LI>
<LI><P><I>2010-05-22</I>: Support for ISE 12 is now available in the driver, the presence of "windrvr6"
is recognized again. Support for parallel/ftdi-cables is currently limited to existing parallel ports only. So you can't use an ftdi-emulated cable on a non-existing parallel port. Using it on a physically present port still works.</P></LI>
<LI><P><I>2010-05-22</I>: Support for ISE 12 is now available in the driver.</P></LI>
</UL>
</P>
<H2>Supported Cables</H2>

61
usb-driver.c
View File

@ -41,6 +41,7 @@
#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"
@ -676,30 +677,60 @@ long int _Z14isModuleLoadedPci(char *module_name, int i) {
/* XilCommNS::CPortResources::Instance() */
void* _ZN9XilCommNS14CPortResources8InstanceEv() {
static void* (*func) (void) = NULL;
static char *NetString = NULL;
static char *NetString2 = NULL;
char *filename = NULL;
void *ret;
if (!func)
func = (void* (*) (void)) dlsym(RTLD_NEXT, "_ZN9XilCommNS14CPortResources8InstanceEv");
if (!NetString)
NetString = (char*)dlsym(RTLD_NEXT, "_ZTSN9XilCommNS9NetStringE");
if (!NetString2)
NetString2 = (char*)dlsym(RTLD_NEXT, "_ZTIN9XilCommNS9NetStringE");
if (NetString && (!strcmp((char*)(NetString+0xb0), "/proc/sys/dev/parport/%s/base-addr")))
filename = (char*)(NetString+0xb0);
if (NetString2 && (!strcmp((char*)(NetString2+0xa4), "/proc/sys/dev/parport/%s/base-addr")))
filename = (char*)(NetString2+0xa4);
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();
#ifdef DEBUG
hexdump(ret, 0x29, "<-");
#if 0
{
void *portinfo;
portinfo = ((unsigned char**)ret+0x00);
hexdump(portinfo, 256, "PI");
hexdump(portinfo+0x50, 4, "BS");
hexdump(portinfo+0x54, 4, "BE");
hexdump(portinfo+0x58, 4, "ES");
hexdump(portinfo+0x5c, 4, "EE");
}
#endif
#endif
DPRINTF("<- XilCommNS::CPortResources::Instance()\n");
return ret;