1 files changed, 77 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/common/xf86Versions.c b/xorg-server/hw/xfree86/common/xf86Versions.c
new file mode 100644
index 000000000..97a35590e
--- /dev/null
+++ b/xorg-server/hw/xfree86/common/xf86Versions.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2003 by The XFree86 Project, Inc.
+ *
+ * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ *
+ * Except as contained in this notice, the name of the copyright holder(s)
+ * and author(s) shall not be used in advertising or otherwise to promote
+ * the sale, use or other dealings in this Software without prior written
+ * authorization from the copyright holder(s) and author(s).
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "xf86.h"
+#include "xf86OSmouse.h"
+
+static CARD32 registeredVersions[NUM_BUILTIN_IFS];
+
+_X_EXPORT CARD32
+xf86GetBuiltinInterfaceVersion(BuiltinInterface iface, int flags)
+{
+    if (iface < 0 || iface >= NUM_BUILTIN_IFS) {
+	xf86Msg(X_ERROR, "xf86GetBuiltinInterfaceVersion: Unexpected interface"
+		"query: %d\n", iface);
+	return 0;
+    }
+
+    if (registeredVersions[iface])
+	return registeredVersions[iface];
+
+    /* Most built-in interfaces are handled this way. */
+    switch (iface) {
+    case BUILTIN_IF_OSMOUSE:
+	return OS_MOUSE_VERSION_CURRENT;
+    default:
+	xf86Msg(X_ERROR, "xf86GetBuiltinInterfaceVersion: internal error: "
+		"interface %d not handled\n", iface);
+	return 0;
+    }
+}
+
+_X_EXPORT Bool
+xf86RegisterBuiltinInterfaceVersion(BuiltinInterface iface, CARD32 version,
+				    int flags)
+{
+    if (iface < 0 || iface >= NUM_BUILTIN_IFS) {
+	xf86Msg(X_ERROR, "xf86RegisterBuiltinInterfaceVersion: "
+		"unexpected interface number: %d\n", iface);
+	return FALSE;
+    }
+    if (version == 0) {
+	xf86Msg(X_ERROR, "xf86RegisterBuiltinInterfaceVersion: "
+		"versions must be greater than zero\n");
+	return FALSE;
+    }
+    registeredVersions[iface] = version;
+    return TRUE;
+}
+