xref: /netbsd/sys/dev/pci/wsdisplay_pci.c (revision 6550d01e)
1 /*	$NetBSD: wsdisplay_pci.c,v 1.1 2011/01/22 15:14:28 cegger Exp $ */
2 /*
3  * Copyright (c) 2011 The NetBSD Foundation, Inc.
4  * All rights reserved.
5  *
6  * This code is derived from software contributed to The NetBSD Foundation
7  * by Christoph Egger.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28  * POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 #include <sys/cdefs.h>
32 __KERNEL_RCSID(0, "$NetBSD: wsdisplay_pci.c,v 1.1 2011/01/22 15:14:28 cegger Exp $");
33 
34 #include <sys/param.h>
35 #include <sys/bus.h>
36 #include <dev/pci/pcivar.h>
37 #include <dev/wscons/wsconsio.h>
38 #include <dev/pci/wsdisplay_pci.h>
39 
40 int
41 wsdisplayio_busid_pci(device_t self, pci_chipset_tag_t pc,
42     pcitag_t tag, void *data)
43 {
44 	struct wsdisplayio_bus_id *busid = data;
45 
46 	KASSERT(device_is_a(device_parent(self), "pci"));
47 	busid->bus_type = WSDISPLAYIO_BUS_PCI;
48 	busid->ubus.pci.domain = device_unit(device_parent(self));
49 	pci_decompose_tag(pc, tag,
50 	    &busid->ubus.pci.bus, &busid->ubus.pci.device,
51 	    &busid->ubus.pci.function);
52 	return 0;
53 }
54