2 * Copyright (c) 2000 Michael Smith
3 * Copyright (c) 2000 BSDi
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * $FreeBSD: src/sys/dev/acpica/acpi_pcib_pci.c,v 1.17.8.1 2009/04/15 03:14:26 kensmith Exp $
32 #include <sys/param.h>
34 #include <sys/kernel.h>
35 #include <sys/malloc.h>
36 #include <sys/module.h>
39 #include <dev/acpica5/acpivar.h>
40 #include <dev/acpica5/acpi_pcibvar.h>
42 #include <bus/pci/i386/pci_cfgreg.h>
43 #include <bus/pci/pcivar.h>
44 #include <bus/pci/pcireg.h>
45 #include <bus/pci/pcib_private.h>
48 /* Hooks for the ACPI CA debugging infrastructure. */
49 #define _COMPONENT ACPI_BUS
50 ACPI_MODULE_NAME("PCI_PCI")
52 struct acpi_pcib_softc
{
53 struct pcib_softc ap_pcibsc
;
54 ACPI_HANDLE ap_handle
;
55 ACPI_BUFFER ap_prt
; /* interrupt routing table */
58 struct acpi_pcib_lookup_info
{
63 static int acpi_pcib_pci_probe(device_t bus
);
64 static int acpi_pcib_pci_attach(device_t bus
);
65 static int acpi_pcib_pci_resume(device_t bus
);
66 static int acpi_pcib_read_ivar(device_t dev
, device_t child
,
67 int which
, uintptr_t *result
);
68 static int acpi_pcib_pci_route_interrupt(device_t pcib
,
69 device_t dev
, int pin
);
71 static device_method_t acpi_pcib_pci_methods
[] = {
72 /* Device interface */
73 DEVMETHOD(device_probe
, acpi_pcib_pci_probe
),
74 DEVMETHOD(device_attach
, acpi_pcib_pci_attach
),
75 DEVMETHOD(device_shutdown
, bus_generic_shutdown
),
76 DEVMETHOD(device_suspend
, bus_generic_suspend
),
77 DEVMETHOD(device_resume
, acpi_pcib_pci_resume
),
80 DEVMETHOD(bus_print_child
, bus_generic_print_child
),
81 DEVMETHOD(bus_read_ivar
, acpi_pcib_read_ivar
),
82 DEVMETHOD(bus_write_ivar
, pcib_write_ivar
),
83 // DEVMETHOD(bus_alloc_resource, pcib_alloc_resource),
84 DEVMETHOD(bus_alloc_resource
, bus_generic_alloc_resource
),
85 DEVMETHOD(bus_release_resource
, bus_generic_release_resource
),
86 DEVMETHOD(bus_activate_resource
, bus_generic_activate_resource
),
87 DEVMETHOD(bus_deactivate_resource
, bus_generic_deactivate_resource
),
88 DEVMETHOD(bus_setup_intr
, bus_generic_setup_intr
),
89 DEVMETHOD(bus_teardown_intr
, bus_generic_teardown_intr
),
92 DEVMETHOD(pcib_maxslots
, pcib_maxslots
),
93 DEVMETHOD(pcib_read_config
, pcib_read_config
),
94 DEVMETHOD(pcib_write_config
, pcib_write_config
),
95 DEVMETHOD(pcib_route_interrupt
, acpi_pcib_pci_route_interrupt
),
97 DEVMETHOD(pcib_alloc_msi
, pcib_alloc_msi
),
98 DEVMETHOD(pcib_release_msi
, pcib_release_msi
),
99 DEVMETHOD(pcib_alloc_msix
, pcib_alloc_msix
),
100 DEVMETHOD(pcib_release_msix
, pcib_release_msix
),
101 DEVMETHOD(pcib_map_msi
, pcib_map_msi
),
106 static devclass_t pcib_devclass
;
107 DEFINE_CLASS_0(pcib
, acpi_pcib_pci_driver
, acpi_pcib_pci_methods
,
108 sizeof(struct acpi_pcib_softc
));
109 DRIVER_MODULE(acpi_pcib
, pci
, acpi_pcib_pci_driver
, pcib_devclass
, 0, 0);
110 MODULE_DEPEND(acpi_pcib
, acpi
, 1, 1, 1);
113 acpi_pcib_pci_probe(device_t dev
)
116 if (pci_get_class(dev
) != PCIC_BRIDGE
||
117 pci_get_subclass(dev
) != PCIS_BRIDGE_PCI
||
118 !acpi_enabled("pci"))
120 if (acpi_get_handle(dev
) == NULL
)
122 if (pci_cfgregopen() == 0)
125 device_set_desc(dev
, "ACPI PCI-PCI bridge");
130 acpi_pcib_pci_attach(device_t dev
)
132 struct acpi_pcib_softc
*sc
;
133 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__
);
134 pcib_attach_common(dev
);
135 sc
= device_get_softc(dev
);
136 sc
->ap_handle
= acpi_get_handle(dev
);
137 return (acpi_pcib_attach(dev
, &sc
->ap_prt
, sc
->ap_pcibsc
.secbus
));
141 acpi_pcib_pci_resume(device_t dev
)
144 return (acpi_pcib_resume(dev
));
148 acpi_pcib_read_ivar(device_t dev
, device_t child
, int which
, uintptr_t *result
)
150 struct acpi_pcib_softc
*sc
= device_get_softc(dev
);
153 case ACPI_IVAR_HANDLE
:
154 *result
= (uintptr_t)sc
->ap_handle
;
157 return (pcib_read_ivar(dev
, child
, which
, result
));
161 acpi_pcib_pci_route_interrupt(device_t pcib
, device_t dev
, int pin
)
163 struct acpi_pcib_softc
*sc
;
165 sc
= device_get_softc(pcib
);
168 * If we don't have a _PRT, fall back to the swizzle method
169 * for routing interrupts.
171 if (sc
->ap_prt
.Pointer
== NULL
) {
172 device_printf(pcib
, "No _PRT found, routing with pci\n");
173 return (pcib_route_interrupt(pcib
, dev
, pin
));
176 return (acpi_pcib_route_interrupt(pcib
, dev
, pin
, &sc
->ap_prt
));