Add a nexus device.

Copied from:	sparc64

1 files changed, 51 insertions, 0 deletions

diff --git a/sys/powerpc/include/nexusvar.h b/sys/powerpc/include/nexusvar.h
new file mode 100644
index 0000000..9cdeb63
--- /dev/null
+++ b/sys/powerpc/include/nexusvar.h
@@ -0,0 +1,51 @@
+/*-
+ * Copyright (c) 2001 by Thomas Moestl <tmm@FreeBSD.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.
+ * 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 OR CONTRIBUTORS 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _MACHINE_NEXUSVAR_H_
+#define _MACHINE_NEXUSVAR_H_
+
+enum nexus_ivars {
+	NEXUS_IVAR_NODE,
+	NEXUS_IVAR_NAME,
+	NEXUS_IVAR_DEVICE_TYPE,
+};
+
+/*
+ * Simplified accessors for nexus devices
+ * XXX: These should be made specializations of generic bus accessor macros
+ * instead of having multiple implementations around.
+ */
+#define NEXUS_ACCESSOR(var, ivar, type)					\
+	__BUS_ACCESSOR(nexus, var, NEXUS, ivar, type)
+
+NEXUS_ACCESSOR(node,		NODE,			phandle_t)
+NEXUS_ACCESSOR(name,		NAME,			char *)
+NEXUS_ACCESSOR(device_type,	DEVICE_TYPE,		char *)
+
+#undef NEXUS_ACCESSOR
+
+#endif /* _MACHINE_NEXUSVAR_H_ */