170 lines
5.1 KiB
C
170 lines
5.1 KiB
C
/*-
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* Copyright (c) 2000 Michael Smith
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* Copyright (c) 2000 BSDi
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_acpi.h"
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include "acpi.h"
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#include <dev/acpica/acpivar.h>
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#include <dev/acpica/acpi_pcibvar.h>
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#include <machine/pci_cfgreg.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcib_private.h>
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#include "pcib_if.h"
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/*
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* Hooks for the ACPI CA debugging infrastructure
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*/
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#define _COMPONENT ACPI_BUS
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ACPI_MODULE_NAME("PCI_PCI")
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struct acpi_pcib_softc {
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struct pcib_softc ap_pcibsc;
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ACPI_HANDLE ap_handle;
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ACPI_BUFFER ap_prt; /* interrupt routing table */
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};
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struct acpi_pcib_lookup_info {
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UINT32 address;
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ACPI_HANDLE handle;
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};
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static int acpi_pcib_pci_probe(device_t bus);
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static int acpi_pcib_pci_attach(device_t bus);
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static int acpi_pcib_pci_resume(device_t bus);
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static int acpi_pcib_read_ivar(device_t dev, device_t child, int which, uintptr_t *result);
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static int acpi_pcib_pci_route_interrupt(device_t pcib,
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device_t dev, int pin);
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static device_method_t acpi_pcib_pci_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, acpi_pcib_pci_probe),
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DEVMETHOD(device_attach, acpi_pcib_pci_attach),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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DEVMETHOD(device_suspend, bus_generic_suspend),
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DEVMETHOD(device_resume, acpi_pcib_pci_resume),
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/* Bus interface */
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DEVMETHOD(bus_print_child, bus_generic_print_child),
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DEVMETHOD(bus_read_ivar, acpi_pcib_read_ivar),
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DEVMETHOD(bus_write_ivar, pcib_write_ivar),
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DEVMETHOD(bus_alloc_resource, pcib_alloc_resource),
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DEVMETHOD(bus_release_resource, bus_generic_release_resource),
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DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
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DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
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DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
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DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
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/* pcib interface */
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DEVMETHOD(pcib_maxslots, pcib_maxslots),
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DEVMETHOD(pcib_read_config, pcib_read_config),
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DEVMETHOD(pcib_write_config, pcib_write_config),
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DEVMETHOD(pcib_route_interrupt, acpi_pcib_pci_route_interrupt),
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{0, 0}
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};
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static driver_t acpi_pcib_pci_driver = {
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"pcib",
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acpi_pcib_pci_methods,
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sizeof(struct acpi_pcib_softc),
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};
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DRIVER_MODULE(acpi_pcib, pci, acpi_pcib_pci_driver, pcib_devclass, 0, 0);
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MODULE_DEPEND(acpi_pcib, acpi, 1, 1, 1);
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static int
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acpi_pcib_pci_probe(device_t dev)
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{
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if ((pci_get_class(dev) != PCIC_BRIDGE) ||
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(pci_get_subclass(dev) != PCIS_BRIDGE_PCI) ||
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acpi_disabled("pci"))
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return (ENXIO);
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if (acpi_get_handle(dev) == NULL)
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return (ENXIO);
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if (!pci_cfgregopen())
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return (ENXIO);
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device_set_desc(dev, "ACPI PCI-PCI bridge");
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return (-1000);
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}
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static int
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acpi_pcib_pci_attach(device_t dev)
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{
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struct acpi_pcib_softc *sc;
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ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
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pcib_attach_common(dev);
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sc = device_get_softc(dev);
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sc->ap_handle = acpi_get_handle(dev);
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return (acpi_pcib_attach(dev, &sc->ap_prt, sc->ap_pcibsc.secbus));
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}
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static int
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acpi_pcib_pci_resume(device_t dev)
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{
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struct acpi_pcib_softc *sc = device_get_softc(dev);
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return (acpi_pcib_resume(dev, &sc->ap_prt, sc->ap_pcibsc.secbus));
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}
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static int
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acpi_pcib_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
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{
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struct acpi_pcib_softc *sc = device_get_softc(dev);
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switch (which) {
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case ACPI_IVAR_HANDLE:
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*result = (uintptr_t)sc->ap_handle;
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return(0);
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}
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return(pcib_read_ivar(dev, child, which, result));
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}
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static int
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acpi_pcib_pci_route_interrupt(device_t pcib, device_t dev, int pin)
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{
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struct acpi_pcib_softc *sc;
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sc = device_get_softc(pcib);
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return (acpi_pcib_route_interrupt(pcib, dev, pin, &sc->ap_prt));
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}
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