2 files changed, 78 insertions, 0 deletions

diff --git a/sys/dev/bhnd/bhndb/bhnd_bhndb.c b/sys/dev/bhnd/bhndb/bhnd_bhndb.c
new file mode 100644
index 0000000000000..c561b4dc82b32
--- /dev/null
+++ b/sys/dev/bhnd/bhndb/bhnd_bhndb.c
@@ -0,0 +1,77 @@
+/*-
+ * Copyright (c) 2015-2016 Landon Fuller <landon@landonf.org>
+ * 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,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
+ *    redistribution must be conditioned upon including a substantially
+ *    similar Disclaimer requirement for further binary redistribution.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/bus.h>
+#include <sys/module.h>
+
+#include <dev/bhnd/bhnd_ids.h>
+#include <dev/bhnd/bhnd.h>
+
+#include "bhndbvar.h"
+
+/*
+ * bhnd(4) driver mix-in providing a shared common methods for
+ * bhnd devices attached via a bhndb bridge.
+ */
+
+static int
+bhnd_bhndb_read_board_info(device_t dev, device_t child,
+    struct bhnd_board_info *info)
+{
+	int	error;
+
+	/* Initialize with NVRAM-derived values */
+	if ((error = bhnd_bus_generic_read_board_info(dev, child, info)))
+		return (error);
+
+	/* Let the bridge fill in any additional data */
+	return (BHNDB_POPULATE_BOARD_INFO(device_get_parent(dev), dev, info));
+}
+
+static bhnd_attach_type
+bhnd_bhndb_get_attach_type(device_t dev, device_t child)
+{
+	/* It's safe to assume that a bridged device is always an adapter */
+	return (BHND_ATTACH_ADAPTER);
+}
+
+static device_method_t bhnd_bhndb_methods[] = {
+	/* BHND interface */
+	DEVMETHOD(bhnd_bus_get_attach_type,	bhnd_bhndb_get_attach_type),
+	DEVMETHOD(bhnd_bus_read_board_info,	bhnd_bhndb_read_board_info),
+
+	DEVMETHOD_END
+};
+
+DEFINE_CLASS_0(bhnd, bhnd_bhndb_driver, bhnd_bhndb_methods, 0);
diff --git a/sys/dev/bhnd/bhndb/bhndb.h b/sys/dev/bhnd/bhndb/bhndb.h
index 366f119155e73..5242ee1ce516f 100644
--- a/sys/dev/bhnd/bhndb/bhndb.h
+++ b/sys/dev/bhnd/bhndb/bhndb.h
@@ -44,6 +44,7 @@
 #include "bhndb_bus_if.h"
 
 extern devclass_t bhndb_devclass;
+DECLARE_CLASS(bhnd_bhndb_driver);
 
 int	bhndb_attach_bridge(device_t parent, device_t *bhndb, int unit);