From: Michael Gernoth <michael@gernoth.net>
Date: Sun, 23 May 2010 21:10:41 +0000 (+0200)
Subject: Add initial parallel port support for ISE 12.
X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/usb-driver/commitdiff_plain/b05f6dfed563db7c6d89e60d0fcf4d5bf8c03867

Add initial parallel port support for ISE 12.

Only ports existing on the local system can be used for real
or ftdi-emulated cables. So you can't attach a ftdi-cable
to your non-existant LPT4 currently.
---

diff --git a/usb-driver.c b/usb-driver.c
index 3bfeee5..ff47ae3 100644
--- a/usb-driver.c
+++ b/usb-driver.c
@@ -659,8 +659,10 @@ int semop (int __semid, struct sembuf *__sops, size_t __nsops) {
 #endif
 
 /*
- * Ugly hack for ISE 12. They don't seem to open /proc/modules with
- * open() anymore...
+ * 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) {
@@ -670,6 +672,22 @@ long int _Z14isModuleLoadedPci(char *module_name, int i) {
 }
 
 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;