280 lines
7.1 KiB
C
280 lines
7.1 KiB
C
/*-
|
|
* 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 <sys/power.h>
|
|
|
|
#include "acpi.h"
|
|
#include <dev/acpica/acpivar.h>
|
|
#include <dev/acpica/acpiio.h>
|
|
|
|
/* Hooks for the ACPI CA debugging infrastructure */
|
|
#define _COMPONENT ACPI_AC_ADAPTER
|
|
ACPI_MODULE_NAME("AC_ADAPTER")
|
|
|
|
/* Number of times to retry initialization before giving up. */
|
|
#define ACPI_ACAD_RETRY_MAX 6
|
|
|
|
#define ACPI_DEVICE_CHECK_PNP 0x00
|
|
#define ACPI_DEVICE_CHECK_EXISTENCE 0x01
|
|
#define ACPI_POWERSOURCE_STAT_CHANGE 0x80
|
|
|
|
struct acpi_acad_softc {
|
|
int status;
|
|
int initializing;
|
|
};
|
|
|
|
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 *);
|
|
static int acpi_acad_sysctl(SYSCTL_HANDLER_ARGS);
|
|
static void acpi_acad_init_acline(void *arg);
|
|
|
|
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);
|
|
MODULE_DEPEND(acpi_acad, acpi, 1, 1, 1);
|
|
|
|
static void
|
|
acpi_acad_get_status(void *context)
|
|
{
|
|
struct acpi_acad_softc *sc;
|
|
device_t dev;
|
|
ACPI_HANDLE h;
|
|
int newstatus;
|
|
|
|
dev = context;
|
|
sc = device_get_softc(dev);
|
|
h = acpi_get_handle(dev);
|
|
if (ACPI_FAILURE(acpi_GetInteger(h, "_PSR", &newstatus))) {
|
|
sc->status = -1;
|
|
return;
|
|
}
|
|
|
|
if (sc->status != newstatus) {
|
|
sc->status = newstatus;
|
|
|
|
/* Set system power profile based on AC adapter status */
|
|
power_profile_set_state(sc->status ? POWER_PROFILE_PERFORMANCE :
|
|
POWER_PROFILE_ECONOMY);
|
|
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
|
|
"%s Line\n", sc->status ? "On" : "Off");
|
|
|
|
acpi_UserNotify("ACAD", h, sc->status);
|
|
}
|
|
}
|
|
|
|
static void
|
|
acpi_acad_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context)
|
|
{
|
|
device_t dev = context;
|
|
|
|
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
|
|
"Notify 0x%x\n", notify);
|
|
|
|
switch (notify) {
|
|
case ACPI_DEVICE_CHECK_PNP:
|
|
case ACPI_DEVICE_CHECK_EXISTENCE:
|
|
case ACPI_POWERSOURCE_STAT_CHANGE:
|
|
/* Temporarily. 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_disabled("acad") &&
|
|
acpi_MatchHid(dev, "ACPI0003")) {
|
|
device_set_desc(dev, "AC Adapter");
|
|
return (0);
|
|
}
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
acpi_acad_attach(device_t dev)
|
|
{
|
|
struct acpi_acad_softc *sc;
|
|
struct acpi_softc *acpi_sc;
|
|
ACPI_HANDLE handle;
|
|
int error;
|
|
|
|
sc = device_get_softc(dev);
|
|
if (sc == NULL)
|
|
return (ENXIO);
|
|
handle = acpi_get_handle(dev);
|
|
|
|
error = acpi_register_ioctl(ACPIIO_ACAD_GET_STATUS, acpi_acad_ioctl, dev);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
if (device_get_unit(dev) == 0) {
|
|
acpi_sc = acpi_device_get_parent_softc(dev);
|
|
SYSCTL_ADD_PROC(&acpi_sc->acpi_sysctl_ctx,
|
|
SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree),
|
|
OID_AUTO, "acline", CTLTYPE_INT | CTLFLAG_RD,
|
|
&sc->status, 0, acpi_acad_sysctl, "I", "");
|
|
}
|
|
|
|
/* Get initial status after whole system is up. */
|
|
sc->status = -1;
|
|
sc->initializing = 0;
|
|
|
|
/*
|
|
* Also install a system notify handler even though this is not
|
|
* required by the specification. The Casio FIVA needs this.
|
|
*/
|
|
AcpiInstallNotifyHandler(handle, ACPI_SYSTEM_NOTIFY,
|
|
acpi_acad_notify_handler, dev);
|
|
AcpiInstallNotifyHandler(handle, ACPI_DEVICE_NOTIFY,
|
|
acpi_acad_notify_handler, dev);
|
|
AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpi_acad_init_acline, dev);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
acpi_acad_ioctl(u_long cmd, caddr_t addr, void *arg)
|
|
{
|
|
struct acpi_acad_softc *sc;
|
|
device_t dev;
|
|
|
|
dev = (device_t)arg;
|
|
sc = device_get_softc(dev);
|
|
if (sc == NULL)
|
|
return (ENXIO);
|
|
|
|
/*
|
|
* No security check required: information retrieval only. If
|
|
* new functions are added here, a check might be required.
|
|
*/
|
|
switch (cmd) {
|
|
case ACPIIO_ACAD_GET_STATUS:
|
|
acpi_acad_get_status(dev);
|
|
*(int *)addr = sc->status;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
acpi_acad_sysctl(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
int val, error;
|
|
|
|
if (acpi_acad_get_acline(&val) != 0)
|
|
return (ENXIO);
|
|
|
|
val = *(u_int *)oidp->oid_arg1;
|
|
error = sysctl_handle_int(oidp, &val, 0, req);
|
|
return (error);
|
|
}
|
|
|
|
static void
|
|
acpi_acad_init_acline(void *arg)
|
|
{
|
|
struct acpi_acad_softc *sc;
|
|
device_t dev;
|
|
int retry, status;
|
|
|
|
dev = (device_t)arg;
|
|
sc = device_get_softc(dev);
|
|
if (sc->initializing)
|
|
return;
|
|
|
|
sc->initializing = 1;
|
|
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
|
|
"acline initialization start\n");
|
|
|
|
status = 0;
|
|
for (retry = 0; retry < ACPI_ACAD_RETRY_MAX; retry++) {
|
|
acpi_acad_get_status(dev);
|
|
if (status != sc->status)
|
|
break;
|
|
AcpiOsSleep(10, 0);
|
|
}
|
|
|
|
sc->initializing = 0;
|
|
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
|
|
"acline initialization done, tried %d times\n", retry + 1);
|
|
}
|
|
|
|
/*
|
|
* Public interfaces.
|
|
*/
|
|
int
|
|
acpi_acad_get_acline(int *status)
|
|
{
|
|
struct acpi_acad_softc *sc;
|
|
device_t dev;
|
|
|
|
dev = devclass_get_device(acpi_acad_devclass, 0);
|
|
if (dev == NULL)
|
|
return (ENXIO);
|
|
sc = device_get_softc(dev);
|
|
if (sc == NULL)
|
|
return (ENXIO);
|
|
|
|
acpi_acad_get_status(dev);
|
|
*status = sc->status;
|
|
|
|
return (0);
|
|
}
|