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/*-
* Copyright (c) 2000 Michael Smith
* Copyright (c) 2000 BSDi
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_acpi.h"
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/rman.h>
#include <contrib/dev/acpica/include/acpi.h>
#include <contrib/dev/acpica/include/accommon.h>
#include <dev/acpica/acpivar.h>
#include <dev/acpica/acpi_pcibvar.h>
#include <machine/pci_cfgreg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcib_private.h>
#include "pcib_if.h"
/* Hooks for the ACPI CA debugging infrastructure. */
#define _COMPONENT ACPI_BUS
ACPI_MODULE_NAME("PCI_PCI")
struct acpi_pcib_softc {
struct pcib_softc ap_pcibsc;
ACPI_HANDLE ap_handle;
ACPI_BUFFER ap_prt; /* interrupt routing table */
};
struct acpi_pcib_lookup_info {
UINT32 address;
ACPI_HANDLE handle;
};
static int acpi_pcib_pci_probe(device_t bus);
static int acpi_pcib_pci_attach(device_t bus);
static int acpi_pcib_read_ivar(device_t dev, device_t child,
int which, uintptr_t *result);
static int acpi_pcib_pci_route_interrupt(device_t pcib,
device_t dev, int pin);
static device_method_t acpi_pcib_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, acpi_pcib_pci_probe),
DEVMETHOD(device_attach, acpi_pcib_pci_attach),
/* Bus interface */
DEVMETHOD(bus_read_ivar, acpi_pcib_read_ivar),
/* pcib interface */
DEVMETHOD(pcib_route_interrupt, acpi_pcib_pci_route_interrupt),
DEVMETHOD(pcib_power_for_sleep, acpi_pcib_power_for_sleep),
DEVMETHOD_END
};
static devclass_t pcib_devclass;
DEFINE_CLASS_1(pcib, acpi_pcib_pci_driver, acpi_pcib_pci_methods,
sizeof(struct acpi_pcib_softc), pcib_driver);
DRIVER_MODULE(acpi_pcib, pci, acpi_pcib_pci_driver, pcib_devclass, 0, 0);
MODULE_DEPEND(acpi_pcib, acpi, 1, 1, 1);
static int
acpi_pcib_pci_probe(device_t dev)
{
if (pci_get_class(dev) != PCIC_BRIDGE ||
pci_get_subclass(dev) != PCIS_BRIDGE_PCI ||
acpi_disabled("pci"))
return (ENXIO);
if (acpi_get_handle(dev) == NULL)
return (ENXIO);
if (pci_cfgregopen() == 0)
return (ENXIO);
device_set_desc(dev, "ACPI PCI-PCI bridge");
return (-1000);
}
static int
acpi_pcib_pci_attach(device_t dev)
{
struct acpi_pcib_softc *sc;
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
pcib_attach_common(dev);
sc = device_get_softc(dev);
sc->ap_handle = acpi_get_handle(dev);
return (acpi_pcib_attach(dev, &sc->ap_prt, sc->ap_pcibsc.bus.sec));
}
static int
acpi_pcib_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
{
struct acpi_pcib_softc *sc = device_get_softc(dev);
switch (which) {
case ACPI_IVAR_HANDLE:
*result = (uintptr_t)sc->ap_handle;
return (0);
}
return (pcib_read_ivar(dev, child, which, result));
}
static int
acpi_pcib_pci_route_interrupt(device_t pcib, device_t dev, int pin)
{
struct acpi_pcib_softc *sc;
sc = device_get_softc(pcib);
/*
* If we don't have a _PRT, fall back to the swizzle method
* for routing interrupts.
*/
if (sc->ap_prt.Pointer == NULL)
return (pcib_route_interrupt(pcib, dev, pin));
else
return (acpi_pcib_route_interrupt(pcib, dev, pin, &sc->ap_prt));
}
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