1 files changed, 70 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/hw/xfree86/os-support/dgux/bios_DGmmap.c b/nx-X11/programs/Xserver/hw/xfree86/os-support/dgux/bios_DGmmap.c
new file mode 100644
index 000000000..95aad7a12
--- /dev/null
+++ b/nx-X11/programs/Xserver/hw/xfree86/os-support/dgux/bios_DGmmap.c
@@ -0,0 +1,70 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/dgux/bios_DGmmap.c,v 1.3 2000/02/11 22:36:02 dawes Exp $ */
+/*
+ * INTEL DG/UX RELEASE 4.20 MU03
+ * Copyright 1997 Takis Psarogiannakopoulos Cambridge,UK
+ * <takis@dpmms.cam.ac.uk>
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation.
+ * XCONSORTIUM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE.
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FITNESS, IN NO EVENT SHALL XCONSORTIUM BE LIABLE FOR
+ * ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+ * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <X11/X.h>
+#include "input.h"
+#include "scrnintstr.h"
+
+#include "xf86.h"
+#include "xf86Priv.h"
+#include "xf86_OSlib.h"
+
+/*
+ * Read the BIOS via mmap() to the device /dev/mem.
+ */
+int xf86ReadBIOS(Base, Offset, Buf, Len)
+unsigned long Base;
+unsigned long Offset;
+unsigned char *Buf;
+int Len;
+{
+	int fd;
+	unsigned char *ptr;
+	int psize;
+	int mlen;
+
+	if ((fd = open(DEV_MEM, O_RDONLY)) < 0)
+	{
+		ErrorF("xf86ReadBios: Failed to open %s (%s)\n", DEV_MEM,
+		       strerror(errno));
+		return(-1);
+	}
+	psize = xf86getpagesize();
+	Offset += Base & (psize - 1);
+	Base &= ~(psize - 1);
+	mlen = (Offset + Len + psize - 1) & ~(psize - 1);
+	ptr = (unsigned char *)mmap((caddr_t)0, mlen, PROT_READ, MAP_SHARED,
+				    fd, (off_t)Base);
+	if ((int)ptr == -1)
+	{
+		ErrorF("xf86ReadBios: %s mmap failed\n", DEV_MEM);
+		close(fd);
+		return(-1);
+	}
+	(void)memcpy(Buf, (void *)(ptr + Offset), Len);
+	(void)munmap((caddr_t)ptr, mlen);
+	(void)close(fd);
+	return(Len);
+}