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/*
* Copyright (C) 2001 The XFree86 Project, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES
* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
* THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name of the XFree86 Project
* shall not be used in advertising or otherwise to promote the sale, use
* or other dealings in this Software without prior written authorization
* from the XFree86 Project.
*/
/* $OpenBSD: bsd_kqueue_apm.c,v 1.5 2002/07/30 23:07:42 matthieu Exp $ */
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include <X11/X.h>
#include "os.h"
#include "xf86.h"
#include "xf86Priv.h"
#define XF86_OS_PRIVS
#include "xf86_OSproc.h"
#include "xf86_OSlib.h"
#include <sys/event.h>
#include <machine/apmvar.h>
#define _PATH_APM_SOCKET "/var/run/apmdev"
#define _PATH_APM_DEV "/dev/apm"
#define _PATH_APM_CTLDEV "/dev/apmctl"
static pointer APMihPtr = NULL;
static int devFd = -1;
static int ctlFd = -1;
static void bsdCloseAPM(void);
static struct {
u_int apmBsd;
pmEvent xf86;
} bsdToXF86Array [] = {
{ APM_STANDBY_REQ, XF86_APM_SYS_STANDBY },
{ APM_SUSPEND_REQ, XF86_APM_SYS_SUSPEND },
{ APM_NORMAL_RESUME, XF86_APM_NORMAL_RESUME },
{ APM_CRIT_RESUME, XF86_APM_CRITICAL_RESUME },
{ APM_BATTERY_LOW, XF86_APM_LOW_BATTERY },
{ APM_POWER_CHANGE, XF86_APM_POWER_STATUS_CHANGE },
{ APM_UPDATE_TIME, XF86_APM_UPDATE_TIME },
{ APM_CRIT_SUSPEND_REQ, XF86_APM_CRITICAL_SUSPEND },
{ APM_USER_STANDBY_REQ, XF86_APM_USER_STANDBY },
{ APM_USER_SUSPEND_REQ, XF86_APM_USER_SUSPEND },
{ APM_SYS_STANDBY_RESUME, XF86_APM_STANDBY_RESUME },
#ifdef APM_CAPABILITY_CHANGE
{ APM_CAPABILITY_CHANGE, XF86_APM_CAPABILITY_CHANGED },
#endif
};
#define numApmEvents (sizeof(bsdToXF86Array) / sizeof(bsdToXF86Array[0]))
static pmEvent
bsdToXF86(int type)
{
int i;
for (i = 0; i < numApmEvents; i++) {
if (type == bsdToXF86Array[i].apmBsd) {
return bsdToXF86Array[i].xf86;
}
}
return XF86_APM_UNKNOWN;
}
/*
* APM events can be requested direclty from /dev/apm
*/
static int
bsdPMGetEventFromOS(int kq, pmEvent *events, int num)
{
struct kevent ev;
int i, result;
struct timespec ts = { 0, 0 };
for (i = 0; i < num; i++) {
result = kevent(kq, NULL, 0, &ev, 1, &ts);
if (result == 0 || APM_EVENT_TYPE(ev.data) == APM_NOEVENT) {
/* no event */
break;
} else if (result < 0) {
xf86Msg(X_WARNING, "bsdPMGetEventFromOS: kevent returns"
" errno = %d\n", errno);
break;
}
events[i] = bsdToXF86(APM_EVENT_TYPE(ev.data));
}
return i;
}
/*
* If apmd(8) is running, he will get the events and handle them,
* so, we've nothing to do here.
* Otherwise, opening /dev/apmctl will succeed and we have to send the
* confirmations to /dev/apmctl.
*/
static pmWait
bsdPMConfirmEventToOs(int dummyfd, pmEvent event)
{
if (ctlFd < 0) {
if ((ctlFd = open(_PATH_APM_CTLDEV, O_RDWR)) < 0) {
return PM_NONE;
}
}
/* apmctl open succeedeed */
switch (event) {
case XF86_APM_SYS_STANDBY:
case XF86_APM_USER_STANDBY:
if (ioctl( ctlFd, APM_IOC_STANDBY, NULL ) == 0)
return PM_WAIT; /* should we stop the Xserver in standby, too? */
else
return PM_NONE;
case XF86_APM_SYS_SUSPEND:
case XF86_APM_CRITICAL_SUSPEND:
case XF86_APM_USER_SUSPEND:
if (ioctl( ctlFd, APM_IOC_SUSPEND, NULL ) == 0)
return PM_WAIT;
else
return PM_NONE;
break;
case XF86_APM_STANDBY_RESUME:
case XF86_APM_NORMAL_RESUME:
case XF86_APM_CRITICAL_RESUME:
case XF86_APM_STANDBY_FAILED:
case XF86_APM_SUSPEND_FAILED:
return PM_CONTINUE;
break;
default:
return PM_NONE;
}
}
PMClose
xf86OSPMOpen(void)
{
int kq;
struct kevent ev;
if (APMihPtr || !xf86Info.pmFlag) {
return NULL;
}
if ((devFd = open(_PATH_APM_DEV, O_RDONLY)) == -1) {
return NULL;
}
if ((kq = kqueue()) <= 0) {
close(devFd);
return NULL;
}
EV_SET(&ev, devFd, EVFILT_READ, EV_ADD | EV_ENABLE | EV_CLEAR,
0, 0, NULL);
if (kevent(kq, &ev, 1, NULL, 0, NULL) < 0) {
close(devFd);
return NULL;
}
xf86PMGetEventFromOs = bsdPMGetEventFromOS;
xf86PMConfirmEventToOs = bsdPMConfirmEventToOs;
APMihPtr = xf86AddInputHandler(kq, xf86HandlePMEvents, NULL);
return bsdCloseAPM;
}
static void
bsdCloseAPM(void)
{
int kq;
if (APMihPtr) {
kq = xf86RemoveInputHandler(APMihPtr);
close(devFd);
devFd = -1;
close(kq);
if (ctlFd >= 0) {
close(ctlFd);
ctlFd = -1;
}
APMihPtr = NULL;
}
}
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