9123341378
allocation was passed up to nexus. Now, we probe sysresource objects and
manage the resources they describe in a local rman pool. This helps
devices which attach/detach varying resources (like the _CST object) and
module loads/unloads. The allocation/release routines now check to see if
the resource is described in a child sysresource object and if so,
allocate from the local rman. Sysresource objects add their resources to
the pool and reserve them upon boot. This means sysresources need to be
probed before other ACPI devices.
Changes include:
* Add ordering to the child device probe. The current order is: system
resource objects, embedded controllers, then everything else.
* Make acpi_MatchHid take a handle instead of a device_t arg.
* Replace acpi_{get,set}_resource with the generic equivalents.
132 lines
4.0 KiB
C
132 lines
4.0 KiB
C
/*-
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* Copyright (c) 2003 John Baldwin <jhb@FreeBSD.org>
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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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/*
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* ISA Bridge driver for Generic ISA Bus Devices. See section 10.7 of the
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* ACPI 2.0a specification for details on this device.
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*/
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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/kernel.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include "acpi.h"
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#include <dev/acpica/acpivar.h>
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#include <isa/isavar.h>
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/* Hooks for the ACPI CA debugging infrastructure. */
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#define _COMPONENT ACPI_BUS
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ACPI_MODULE_NAME("ISA_ACPI")
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struct acpi_isab_softc {
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device_t ap_dev;
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ACPI_HANDLE ap_handle;
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};
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static int acpi_isab_probe(device_t bus);
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static int acpi_isab_attach(device_t bus);
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static int acpi_isab_read_ivar(device_t dev, device_t child, int which,
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uintptr_t *result);
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static device_method_t acpi_isab_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, acpi_isab_probe),
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DEVMETHOD(device_attach, acpi_isab_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, bus_generic_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_isab_read_ivar),
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DEVMETHOD(bus_alloc_resource, bus_generic_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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{0, 0}
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};
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static driver_t acpi_isab_driver = {
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"isab",
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acpi_isab_methods,
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sizeof(struct acpi_isab_softc),
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};
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DRIVER_MODULE(acpi_isab, acpi, acpi_isab_driver, isab_devclass, 0, 0);
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MODULE_DEPEND(acpi_isab, acpi, 1, 1, 1);
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static int
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acpi_isab_probe(device_t dev)
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{
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ACPI_HANDLE h;
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h = acpi_get_handle(dev);
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if (acpi_get_type(dev) == ACPI_TYPE_DEVICE &&
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!acpi_disabled("isa") &&
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devclass_get_device(isab_devclass, 0) == dev &&
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(acpi_MatchHid(h, "PNP0A05") || acpi_MatchHid(h, "PNP0A06"))) {
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device_set_desc(dev, "ACPI Generic ISA bridge");
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return (0);
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}
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return (ENXIO);
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}
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static int
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acpi_isab_attach(device_t dev)
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{
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struct acpi_isab_softc *sc;
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ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
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sc = device_get_softc(dev);
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sc->ap_dev = dev;
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sc->ap_handle = acpi_get_handle(dev);
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return (isab_attach(dev));
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}
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static int
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acpi_isab_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
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{
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struct acpi_isab_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 (ENOENT);
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}
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