Alpha 8200: Add in a dummy child of dwlpx so that we can make the leap

from DWLPX to PCI space. Just a methods holder such that we have a parent
which is a "pcib" and we create a child which is a "pci". Add the appropriate
ivar code (which is for a hose #).

1 files changed, 80 insertions, 0 deletions

diff --git a/sys/alpha/pci/dwlpx_pci.c b/sys/alpha/pci/dwlpx_pci.c
new file mode 100644
index 0000000..dd8612f
--- /dev/null
+++ b/sys/alpha/pci/dwlpx_pci.c
@@ -0,0 +1,80 @@
+/* $FreeBSD$ */
+/*
+ * Copyright (c) 2000 Matthew Jacob
+ * 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 AND CONTRIBUTORS ``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.
+ *
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/bus.h>
+#include <machine/bus.h>
+#include <sys/rman.h>
+#include <pci/pcivar.h>
+
+static devclass_t	pcib_devclass;
+
+static int
+dwlpx_pcib_probe(device_t dev)
+{
+	device_set_desc(dev, "DWLPX PCI host bus adapter");
+	device_add_child(dev, "pci", -1);
+	return (0);
+}
+
+static int
+dwlpx_pcib_read_ivar(device_t dev, device_t child, int which, u_long *result)
+{
+	if (which == PCIB_IVAR_HOSE) {
+		*result = *(int*) device_get_ivars(dev);
+		return 0;
+	}
+	return ENOENT;
+}
+
+static device_method_t dwlpx_pcib_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe,		dwlpx_pcib_probe),
+	DEVMETHOD(device_attach,	bus_generic_attach),
+
+	/* Bus interface */
+	DEVMETHOD(bus_print_child,	bus_generic_print_child),
+	DEVMETHOD(bus_read_ivar,	dwlpx_pcib_read_ivar),
+	DEVMETHOD(bus_alloc_resource,	bus_generic_alloc_resource),
+	DEVMETHOD(bus_release_resource,	bus_generic_release_resource),
+	DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
+	DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
+	DEVMETHOD(bus_setup_intr,	bus_generic_setup_intr),
+	DEVMETHOD(bus_teardown_intr,	bus_generic_teardown_intr),
+
+	{ 0, 0 }
+};
+
+static driver_t dwlpx_pcib_driver = {
+	"pcib", dwlpx_pcib_methods, 1
+};
+
+DRIVER_MODULE(pcib, dwlpx, dwlpx_pcib_driver, pcib_devclass, 0, 0);