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 1.7 2004/05/10 18:26:22 jhb Exp $
28 * $DragonFly: src/sys/dev/acpica5/acpi_pcib_pci.c,v 1.2 2004/06/27 08:52:39 dillon Exp $
33 #include <sys/param.h>
35 #include <sys/malloc.h>
36 #include <sys/kernel.h>
41 #include "acpi_pcibvar.h"
43 #include <machine/pci_cfgreg.h>
44 #include <bus/pci/pcivar.h>
45 #include <bus/pci/pcireg.h>
46 #include <bus/pci/pcib_private.h>
51 * Hooks for the ACPI CA debugging infrastructure
53 #define _COMPONENT ACPI_BUS
54 ACPI_MODULE_NAME("PCI_PCI")
56 struct acpi_pcib_softc {
57 struct pcib_softc ap_pcibsc;
58 ACPI_HANDLE ap_handle;
59 ACPI_BUFFER ap_prt; /* interrupt routing table */
62 struct acpi_pcib_lookup_info {
67 static int acpi_pcib_pci_probe(device_t bus);
68 static int acpi_pcib_pci_attach(device_t bus);
69 static int acpi_pcib_pci_resume(device_t bus);
70 static int acpi_pcib_read_ivar(device_t dev, device_t child, int which, uintptr_t *result);
71 static int acpi_pcib_pci_route_interrupt(device_t pcib,
72 device_t dev, int pin);
74 static device_method_t acpi_pcib_pci_methods[] = {
75 /* Device interface */
76 DEVMETHOD(device_probe, acpi_pcib_pci_probe),
77 DEVMETHOD(device_attach, acpi_pcib_pci_attach),
78 DEVMETHOD(device_shutdown, bus_generic_shutdown),
79 DEVMETHOD(device_suspend, bus_generic_suspend),
80 DEVMETHOD(device_resume, acpi_pcib_pci_resume),
83 DEVMETHOD(bus_print_child, bus_generic_print_child),
84 DEVMETHOD(bus_read_ivar, acpi_pcib_read_ivar),
85 DEVMETHOD(bus_write_ivar, pcib_write_ivar),
86 DEVMETHOD(bus_alloc_resource, pcib_alloc_resource),
87 DEVMETHOD(bus_release_resource, bus_generic_release_resource),
88 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
89 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
90 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
91 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
94 DEVMETHOD(pcib_maxslots, pcib_maxslots),
95 DEVMETHOD(pcib_read_config, pcib_read_config),
96 DEVMETHOD(pcib_write_config, pcib_write_config),
97 DEVMETHOD(pcib_route_interrupt, acpi_pcib_pci_route_interrupt),
102 static driver_t acpi_pcib_pci_driver = {
104 acpi_pcib_pci_methods,
105 sizeof(struct acpi_pcib_softc),
108 DRIVER_MODULE(acpi_pcib, pci, acpi_pcib_pci_driver, pcib_devclass, 0, 0);
109 MODULE_DEPEND(acpi_pcib, acpi, 1, 1, 1);
112 acpi_pcib_pci_probe(device_t dev)
115 if ((pci_get_class(dev) != PCIC_BRIDGE) ||
116 (pci_get_subclass(dev) != PCIS_BRIDGE_PCI) ||
117 acpi_disabled("pci"))
119 if (acpi_get_handle(dev) == NULL)
121 if (!pci_cfgregopen())
124 device_set_desc(dev, "ACPI PCI-PCI bridge");
129 acpi_pcib_pci_attach(device_t dev)
131 struct acpi_pcib_softc *sc;
133 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
135 pcib_attach_common(dev);
136 sc = device_get_softc(dev);
137 sc->ap_handle = acpi_get_handle(dev);
138 return (acpi_pcib_attach(dev, &sc->ap_prt, sc->ap_pcibsc.secbus));
142 acpi_pcib_pci_resume(device_t dev)
144 struct acpi_pcib_softc *sc = device_get_softc(dev);
146 return (acpi_pcib_resume(dev, &sc->ap_prt, sc->ap_pcibsc.secbus));
150 acpi_pcib_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
152 struct acpi_pcib_softc *sc = device_get_softc(dev);
155 case ACPI_IVAR_HANDLE:
156 *result = (uintptr_t)sc->ap_handle;
159 return(pcib_read_ivar(dev, child, which, result));
163 acpi_pcib_pci_route_interrupt(device_t pcib, device_t dev, int pin)
165 struct acpi_pcib_softc *sc;
167 sc = device_get_softc(pcib);
170 * If we don't have a _PRT, fall back to the swizzle method
171 * for routing interrupts.
173 if (sc->ap_prt.Pointer == NULL)
174 return (pcib_route_interrupt(pcib, dev, pin));
176 return (acpi_pcib_route_interrupt(pcib, dev, pin, &sc->ap_prt));