freebsd-nq/sys/dev/acpica/acpi_acad.c
Mitsuru IWASAKI 6971b3c7d1 Cleanups of verbose printing. All the messages for the debugging is
disabled unless verbose flag is set.  Also fix some messages in terms
of English.
The critical messages and error messages in probe/attach routine are
unchanged by this commit.
2001-11-18 18:12:07 +00:00

241 lines
5.8 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 "acpi.h"
#include <dev/acpica/acpivar.h>
#include <dev/acpica/acpiio.h>
/*
* Hooks for the ACPI CA debugging infrastructure
*/
#define _COMPONENT ACPI_AC_ADAPTER
MODULE_NAME("AC_ADAPTER")
#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 *);
static int acpi_acad_sysctl(SYSCTL_HANDLER_ARGS);
struct acpi_acad_softc {
int status;
};
static void
acpi_acad_get_status(void *context)
{
int newstatus;
device_t dev = context;
struct acpi_acad_softc *sc = device_get_softc(dev);
ACPI_HANDLE h = acpi_get_handle(dev);
if (acpi_EvaluateInteger(h, "_PSR", &newstatus) != AE_OK) {
sc->status = -1;
return;
}
if (sc->status != newstatus) {
sc->status = newstatus;
/* set system power profile based on AC adapter status */
powerprofile_set_state(sc->status ? POWERPROFILE_PERFORMANCE : POWERPROFILE_ECONOMY);
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
"%s Line\n",(sc->status) ? "On" : "Off");
}
}
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 %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;
struct acpi_acad_softc *sc;
struct acpi_softc *acpi_sc;
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);
if ((sc = device_get_softc(dev)) == NULL) {
return (ENXIO);
}
if ((error = acpi_register_ioctl(ACPIIO_ACAD_GET_STATUS,
acpi_acad_ioctl, dev)) != 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;
AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpi_acad_get_status, dev);
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)
{
device_t dev;
struct acpi_acad_softc *sc;
dev = (device_t)arg;
if ((sc = device_get_softc(dev)) == NULL) {
return(ENXIO);
}
switch (cmd) {
case ACPIIO_ACAD_GET_STATUS:
acpi_acad_get_status(dev);
*(int *)addr = sc->status;
break;
}
return(0);
}
static int
acpi_acad_sysctl(SYSCTL_HANDLER_ARGS)
{
int val;
int error;
if (acpi_acad_get_acline(&val)) {
return (ENXIO);
}
val = *(u_int *)oidp->oid_arg1;
error = sysctl_handle_int(oidp, &val, 0, req);
return (error);
}
/*
* Public interfaces.
*/
int
acpi_acad_get_acline(int *status)
{
device_t dev;
struct acpi_acad_softc *sc;
if ((dev = devclass_get_device(acpi_acad_devclass, 0)) == NULL) {
return (ENXIO);
}
if ((sc = device_get_softc(dev)) == NULL) {
return (ENXIO);
}
acpi_acad_get_status(dev);
*status = sc->status;
return (0);
}