1 files changed, 63 insertions, 0 deletions
diff --git a/sys/dev/random/probe.c b/sys/dev/random/probe.c
new file mode 100644
index 000000000000..264f9d594070
--- /dev/null
+++ b/sys/dev/random/probe.c
@@ -0,0 +1,63 @@
+/*-
+ * Copyright (c) 2004 Mark R V Murray
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer
+ *    in this position and unchanged.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/malloc.h>
+#include <sys/random.h>
+#include <sys/selinfo.h>
+#include <sys/stdint.h>
+#include <sys/sysctl.h>
+
+#if defined(__i386__) && !defined(PC98)
+#include <machine/cpufunc.h>
+#include <machine/cputypes.h>
+#include <machine/md_var.h>
+#include <machine/specialreg.h>
+#endif
+
+#include <dev/random/randomdev.h>
+#include <dev/random/randomdev_soft.h>
+#include <dev/random/nehemiah.h>
+
+void
+random_ident_hardware(struct random_systat *systat)
+{
+
+	/* Set default to software */
+	*systat = random_yarrow;
+
+	/* Then go looking for hardware */
+#if defined(__i386__) && !defined(PC98)
+	if (via_feature_rng & VIA_HAS_RNG) {
+		*systat = random_nehemiah;
+	}
+#endif
+}