1/*
2 * Copyright (c) 2014 Roger Pau Monn�� <roger.pau@citrix.com>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD$");
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/bus.h>
33#include <sys/kernel.h>
34#include <sys/malloc.h>
35#include <sys/module.h>
36
37#include <contrib/dev/acpica/include/acpi.h>
38#include <contrib/dev/acpica/include/accommon.h>
39
40#include <dev/acpica/acpivar.h>
41#include <dev/acpica/acpi_pcivar.h>
42
43#include <sys/pciio.h>
44#include <dev/pci/pcireg.h>
45#include <dev/pci/pcivar.h>
46#include <dev/pci/pci_private.h>
47
48#include <xen/xen-os.h>
49#include <xen/hypervisor.h>
50#include <xen/xen_pci.h>
51
52#include "pcib_if.h"
53#include "pci_if.h"
54
55static int
56xen_acpi_pci_probe(device_t dev)
57{
58
59	if (!xen_pv_domain())
60		return (ENXIO);
61	if (acpi_get_handle(dev) == NULL)
62		return (ENXIO);
63
64	device_set_desc(dev, "Xen ACPI PCI bus");
65
66	return (BUS_PROBE_SPECIFIC);
67}
68
69static void
70xen_acpi_pci_child_added(device_t dev, device_t child)
71{
72
73	acpi_pci_child_added(dev, child);
74	xen_pci_child_added_method(dev, child);
75}
76
77static device_method_t xen_acpi_pci_methods[] = {
78	/* Device interface */
79	DEVMETHOD(device_probe,		xen_acpi_pci_probe),
80
81	/* PCI interface overwrites */
82	DEVMETHOD(pci_enable_msi,	xen_pci_enable_msi_method),
83	DEVMETHOD(pci_disable_msi,	xen_pci_disable_msi_method),
84	DEVMETHOD(pci_child_added,	xen_acpi_pci_child_added),
85
86	DEVMETHOD_END
87};
88
89static devclass_t pci_devclass;
90
91DECLARE_CLASS(acpi_pci_driver);
92DEFINE_CLASS_1(pci, xen_acpi_pci_driver, xen_acpi_pci_methods,
93    sizeof(struct pci_softc), acpi_pci_driver);
94DRIVER_MODULE(xen_acpi_pci, pcib, xen_acpi_pci_driver, pci_devclass, 0, 0);
95MODULE_DEPEND(xen_acpi_pci, pci, 1, 1, 1);
96MODULE_DEPEND(xen_acpi_pci, acpi, 1, 1, 1);
97MODULE_VERSION(xen_acpi_pci, 1);
98