1 files changed, 66 insertions, 0 deletions
diff --git a/hw/xfree86/os-support/lynxos/lynx_mmap.c b/hw/xfree86/os-support/lynxos/lynx_mmap.c
new file mode 100644
index 000000000..621f42c5d
--- /dev/null
+++ b/hw/xfree86/os-support/lynxos/lynx_mmap.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright 1993 by Thomas Mueller
+ *
+ * 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, and that the name of Thomas Mueller not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Thomas Mueller makes no representations
+ * about the suitability of this software for any purpose.  It is provided
+ * "as is" without express or implied warranty.
+ *
+ * THOMAS MUELLER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THOMAS MUELLER 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.
+ *
+ */
+
+/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/lynxos/lynx_mmap.c,v 3.2 1996/09/29 13:38:29 dawes Exp $ */
+
+#include "X.h"
+#include "input.h"
+#include "scrnintstr.h"
+
+#include "xf86.h"
+#include "xf86Priv.h"
+#include "xf86_OSlib.h"
+
+/*
+ * Read BIOS using smem_create facility
+ */
+
+int xf86ReadBIOS(Base, Offset, Buf, Len)
+unsigned long Base;
+unsigned long Offset;
+unsigned char *Buf;
+int Len;
+{
+	char *p;
+	int mlen;
+
+	mlen = (Offset + Len + 4095) & ~4096;
+	p = smem_create("BIOS-probe", (char *)Base, mlen, SM_READ);
+	if (p == NULL)
+	{
+		/* check if there is a stale segment around */
+		if (smem_remove("BIOS-probe") == 0) {
+		    ErrorF("xf86ReadBios: removed stale smem_ segment\n");
+		    p = smem_create("BIOS-probe", (char *)Base, mlen, SM_READ);
+		}
+		if (p == NULL) {
+		    ErrorF("xf86ReadBios: Failed to smem_create Base %x len %x %s \n",
+			    Base, mlen, strerror(errno));
+		    return(-1);
+		}
+	}
+	memcpy(Buf, p + Offset, Len);
+	smem_create(NULL, p, 0, SM_DETACH);
+	smem_remove("BIOS-probe");
+	return(Len);
+}