163 lines
4.5 KiB
C
163 lines
4.5 KiB
C
/*-
|
|
* Copyright (c) 2000 Takanori Watanabe <takawata@jp.freebsd.org>
|
|
* Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@jp.freebsd.org>
|
|
* Copyright (c) 2000 Michael Smith <msmith@freebd.org>
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include "opt_acpi.h"
|
|
#include <sys/param.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/proc.h>
|
|
|
|
#include "acpi.h"
|
|
|
|
#include <dev/acpica/acpivar.h>
|
|
|
|
/*
|
|
* Hooks for the ACPI CA debugging infrastructure
|
|
*/
|
|
#define _COMPONENT ACPI_BUTTON
|
|
ACPI_MODULE_NAME("LID")
|
|
|
|
struct acpi_lid_softc {
|
|
device_t lid_dev;
|
|
ACPI_HANDLE lid_handle;
|
|
int lid_status; /* open or closed */
|
|
};
|
|
|
|
static int acpi_lid_probe(device_t dev);
|
|
static int acpi_lid_attach(device_t dev);
|
|
static void acpi_lid_notify_status_changed(void *arg);
|
|
static void acpi_lid_notify_handler(ACPI_HANDLE h,UINT32 notify, void *context);
|
|
|
|
static device_method_t acpi_lid_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, acpi_lid_probe),
|
|
DEVMETHOD(device_attach, acpi_lid_attach),
|
|
|
|
{0, 0}
|
|
};
|
|
|
|
static driver_t acpi_lid_driver = {
|
|
"acpi_lid",
|
|
acpi_lid_methods,
|
|
sizeof(struct acpi_lid_softc),
|
|
};
|
|
|
|
static devclass_t acpi_lid_devclass;
|
|
DRIVER_MODULE(acpi_lid, acpi, acpi_lid_driver, acpi_lid_devclass, 0, 0);
|
|
|
|
static int
|
|
acpi_lid_probe(device_t dev)
|
|
{
|
|
if ((acpi_get_type(dev) == ACPI_TYPE_DEVICE) &&
|
|
!acpi_disabled("lid") &&
|
|
acpi_MatchHid(dev, "PNP0C0D")) {
|
|
device_set_desc(dev, "Control Method Lid Switch");
|
|
return(0);
|
|
}
|
|
return(ENXIO);
|
|
}
|
|
|
|
static int
|
|
acpi_lid_attach(device_t dev)
|
|
{
|
|
struct acpi_lid_softc *sc;
|
|
|
|
ACPI_FUNCTION_TRACE(__func__);
|
|
|
|
sc = device_get_softc(dev);
|
|
sc->lid_dev = dev;
|
|
sc->lid_handle = acpi_get_handle(dev);
|
|
|
|
/*
|
|
* Install notification handler
|
|
*/
|
|
AcpiInstallNotifyHandler(sc->lid_handle, ACPI_DEVICE_NOTIFY, acpi_lid_notify_handler, sc);
|
|
return_VALUE(0);
|
|
}
|
|
|
|
static void
|
|
acpi_lid_notify_status_changed(void *arg)
|
|
{
|
|
struct acpi_lid_softc *sc;
|
|
struct acpi_softc *acpi_sc;
|
|
|
|
ACPI_FUNCTION_TRACE(__func__);
|
|
|
|
sc = (struct acpi_lid_softc *)arg;
|
|
|
|
/*
|
|
* Evaluate _LID and check the return value, update lid status.
|
|
* Zero: The lid is closed
|
|
* Non-zero: The lid is open
|
|
*/
|
|
if (ACPI_FAILURE(acpi_EvaluateInteger(sc->lid_handle, "_LID", &sc->lid_status)))
|
|
return_VOID;
|
|
|
|
acpi_sc = acpi_device_get_parent_softc(sc->lid_dev);
|
|
if (acpi_sc == NULL) {
|
|
return_VOID;
|
|
}
|
|
|
|
ACPI_VPRINT(sc->lid_dev, acpi_sc,
|
|
"Lid %s\n", sc->lid_status ? "opened" : "closed");
|
|
|
|
if (sc->lid_status == 0) {
|
|
EVENTHANDLER_INVOKE(acpi_sleep_event, acpi_sc->acpi_lid_switch_sx);
|
|
} else {
|
|
EVENTHANDLER_INVOKE(acpi_wakeup_event, acpi_sc->acpi_lid_switch_sx);
|
|
}
|
|
|
|
return_VOID;
|
|
}
|
|
|
|
/* XXX maybe not here */
|
|
#define ACPI_NOTIFY_STATUS_CHANGED 0x80
|
|
|
|
static void
|
|
acpi_lid_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context)
|
|
{
|
|
struct acpi_lid_softc *sc = (struct acpi_lid_softc *)context;
|
|
|
|
ACPI_FUNCTION_TRACE_U32(__func__, notify);
|
|
|
|
switch (notify) {
|
|
case ACPI_NOTIFY_STATUS_CHANGED:
|
|
AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpi_lid_notify_status_changed, sc);
|
|
break;
|
|
default:
|
|
break; /* unknown notification value */
|
|
}
|
|
return_VOID;
|
|
}
|
|
|