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/*-
* Copyright (c) 2000 Takanori Watanabe
* 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.
*
* $FreeBSD$
*/
#include "opt_acpi.h"
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <sys/ioccom.h>
#include <sys/malloc.h>
#include <sys/conf.h>
#include "acpi.h"
#include <dev/acpica/acpivar.h>
#include <dev/acpica/acpiio.h>
#define ACPI_DEVICE_CHECK_PNP 0x00
#define ACPI_DEVICE_CHECK_EXISTENCE 0x01
#define ACPI_POWERSOURCE_STAT_CHANGE 0x80
static void acpi_acad_get_status(void * );
static void acpi_acad_notify_handler(ACPI_HANDLE , UINT32 ,void *);
static int acpi_acad_probe(device_t);
static int acpi_acad_attach(device_t);
static int acpi_acad_ioctl(u_long, caddr_t, void *);
struct acpi_acad_softc {
int status;
};
static void
acpi_acad_get_status(void *context)
{
device_t dev = context;
struct acpi_acad_softc *sc = device_get_softc(dev);
ACPI_HANDLE h = acpi_get_handle(dev);
if (acpi_EvaluateNumber(h, "_PSR", &sc->status) != AE_OK)
return;
device_printf(dev,"%s\n",(sc->status) ? "On Line" : "Off Line");
}
static void
acpi_acad_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context)
{
device_t dev = context;
device_printf(dev, "Notify %d\n", notify);
switch (notify) {
case ACPI_DEVICE_CHECK_PNP:
case ACPI_DEVICE_CHECK_EXISTENCE:
case ACPI_POWERSOURCE_STAT_CHANGE:
/*Temporally. It is better to notify policy manager*/
AcpiOsQueueForExecution(OSD_PRIORITY_LO,
acpi_acad_get_status,context);
break;
default:
break;
}
}
static int
acpi_acad_probe(device_t dev)
{
if ((acpi_get_type(dev) == ACPI_TYPE_DEVICE) &&
acpi_MatchHid(dev, "ACPI0003")) {
/*
* Set device description
*/
device_set_desc(dev, "AC adapter");
return(0);
}
return(ENXIO);
}
static int
acpi_acad_attach(device_t dev)
{
int error;
ACPI_HANDLE handle = acpi_get_handle(dev);
AcpiInstallNotifyHandler(handle,
ACPI_DEVICE_NOTIFY,
acpi_acad_notify_handler, dev);
/*Installing system notify is not so good*/
AcpiInstallNotifyHandler(handle,
ACPI_SYSTEM_NOTIFY,
acpi_acad_notify_handler, dev);
acpi_acad_get_status((void *)dev);
error = acpi_register_ioctl(ACPIIO_ACAD_GET_STATUS, acpi_acad_ioctl,
device_get_softc(dev));
if (error)
return (error);
return(0);
}
static device_method_t acpi_acad_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, acpi_acad_probe),
DEVMETHOD(device_attach, acpi_acad_attach),
{0, 0}
};
static driver_t acpi_acad_driver = {
"acpi_acad",
acpi_acad_methods,
sizeof(struct acpi_acad_softc),
};
static devclass_t acpi_acad_devclass;
DRIVER_MODULE(acpi_acad,acpi,acpi_acad_driver,acpi_acad_devclass,0,0);
static int
acpi_acad_ioctl(u_long cmd, caddr_t addr, void *arg)
{
struct acpi_acad_softc *sc;
sc = (struct acpi_acad_softc *)arg;
if (sc == NULL) {
return(ENXIO);
}
switch (cmd) {
case ACPIIO_ACAD_GET_STATUS:
*(int *)addr = sc->status;
break;
}
return(0);
}
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