30a81dd2b2
acpi_EvaluateInteger. Use acpi_EvaluateInteger instead of doing things the hard way where possible. AcpiSetSystemSleepState (unofficial) becomes AcpiEnterSleepState. Use the AcpiGbl_FADT pointer rather than searching for the FADT.
122 lines
3.3 KiB
C
122 lines
3.3 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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* $FreeBSD$
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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/kernel.h>
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#include <sys/bus.h>
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#include "acpi.h"
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#include <dev/acpica/acpivar.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 SYSTEM_CONTROL
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MODULE_NAME("TIMER")
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#define ACPITIMER_MAGIC 0x524d4954 /* "TIMR" */
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struct acpi_timer_softc {
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device_t tm_dev;
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};
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static void acpi_timer_identify(driver_t *driver, device_t parent);
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static int acpi_timer_probe(device_t dev);
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static int acpi_timer_attach(device_t dev);
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static device_method_t acpi_timer_methods[] = {
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/* Device interface */
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DEVMETHOD(device_identify, acpi_timer_identify),
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DEVMETHOD(device_probe, acpi_timer_probe),
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DEVMETHOD(device_attach, acpi_timer_attach),
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{0, 0}
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};
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static driver_t acpi_timer_driver = {
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"acpi_timer",
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acpi_timer_methods,
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sizeof(struct acpi_timer_softc),
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};
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devclass_t acpi_timer_devclass;
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DRIVER_MODULE(acpi_timer, acpi, acpi_timer_driver, acpi_timer_devclass, 0, 0);
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static void
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acpi_timer_identify(driver_t *driver, device_t parent)
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{
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device_t dev;
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char desc[40];
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FUNCTION_TRACE(__FUNCTION__);
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if (acpi_disabled("timer"))
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return_VOID;
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if (AcpiGbl_FADT == NULL)
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return_VOID;
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if ((dev = BUS_ADD_CHILD(parent, 0, "acpi_timer", 0)) == NULL) {
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device_printf(parent, "could not add acpi_timer0\n");
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return_VOID;
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}
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if (acpi_set_magic(dev, ACPITIMER_MAGIC)) {
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device_printf(dev, "could not set magic\n");
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return_VOID;
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}
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sprintf(desc, "%d-bit timer at 3.579545MHz", AcpiGbl_FADT->TmrValExt ? 32 : 24);
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device_set_desc_copy(dev, desc);
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return_VOID;
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}
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static int
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acpi_timer_probe(device_t dev)
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{
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if (acpi_get_magic(dev) == ACPITIMER_MAGIC)
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return(0);
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return(ENXIO);
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}
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static int
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acpi_timer_attach(device_t dev)
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{
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struct acpi_timer_softc *sc;
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FUNCTION_TRACE(__FUNCTION__);
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sc = device_get_softc(dev);
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sc->tm_dev = dev;
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return_VALUE(0);
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}
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