1 files changed, 72 insertions, 0 deletions
diff --git a/sys/arch/sgi/xbow/xhub.c b/sys/arch/sgi/xbow/xhub.c
new file mode 100644
index 00000000000..db77bd20486
--- /dev/null
+++ b/sys/arch/sgi/xbow/xhub.c
@@ -0,0 +1,72 @@
+/*	$OpenBSD: xhub.c,v 1.1 2008/04/07 22:47:40 miod Exp $	*/
+
+/*
+ * Copyright (c) 2008 Miodrag Vallat.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, 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.
+ */
+
+/*
+ * IP27 Hub Widget
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/device.h>
+
+#include <machine/autoconf.h>
+#include <machine/cpu.h>
+
+#include <sgi/xbow/xbow.h>
+#include <sgi/xbow/xbowdevs.h>
+
+int	xhub_match(struct device *, void *, void *);
+void	xhub_attach(struct device *, struct device *, void *);
+
+struct cfattach xhub_ca = {
+	sizeof(struct device), xhub_match, xhub_attach,
+};
+
+struct cfdriver xhub_cd = {
+	NULL, "xhub", DV_DULL,
+};
+
+int
+xhub_match(struct device *parent, void *match, void *aux)
+{
+	struct xbow_attach_args *xaa = aux;
+
+	if (xaa->xaa_vendor == PCI_VENDOR_SGI4 &&
+	    xaa->xaa_product == PCI_PRODUCT_SGI4_HUB)
+		return xbow_intr_widget == 0 ? 20 : 1;
+
+	return 0;
+}
+
+void
+xhub_attach(struct device *parent, struct device *self, void *aux)
+{
+	struct xbow_attach_args *xaa = aux;
+
+	printf(" revision %d\n", xaa->xaa_revision);
+
+	/*
+	 * If no other widget has claimed interrupts routing, do it now.
+	 */
+	if (xbow_intr_widget == 0) {
+		xbow_intr_widget = xaa->xaa_widget;
+	}
+
+	/* initialize interrupt handling here */
+}