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/*
* Copyright (c) 2000-2002 by The XFree86 Project, Inc.
*
* 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 copyright holder(s)
* and author(s) 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 copyright holder(s) and author(s).
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include <X11/X.h>
#include "xf86.h"
#include "xf86Priv.h"
#include "xf86Xinput.h"
#include "xf86_OSproc.h"
int (*xf86PMGetEventFromOs) (int fd, pmEvent * events, int num) = NULL;
pmWait (*xf86PMConfirmEventToOs) (int fd, pmEvent event) = NULL;
static Bool suspended = FALSE;
static int
eventName(pmEvent event, const char **str)
{
switch (event) {
case XF86_APM_SYS_STANDBY:
*str = "System Standby Request";
return 0;
case XF86_APM_SYS_SUSPEND:
*str = "System Suspend Request";
return 0;
case XF86_APM_CRITICAL_SUSPEND:
*str = "Critical Suspend";
return 0;
case XF86_APM_USER_STANDBY:
*str = "User System Standby Request";
return 0;
case XF86_APM_USER_SUSPEND:
*str = "User System Suspend Request";
return 0;
case XF86_APM_STANDBY_RESUME:
*str = "System Standby Resume";
return 0;
case XF86_APM_NORMAL_RESUME:
*str = "Normal Resume System";
return 0;
case XF86_APM_CRITICAL_RESUME:
*str = "Critical Resume System";
return 0;
case XF86_APM_LOW_BATTERY:
*str = "Battery Low";
return 3;
case XF86_APM_POWER_STATUS_CHANGE:
*str = "Power Status Change";
return 3;
case XF86_APM_UPDATE_TIME:
*str = "Update Time";
return 3;
case XF86_APM_CAPABILITY_CHANGED:
*str = "Capability Changed";
return 3;
case XF86_APM_STANDBY_FAILED:
*str = "Standby Request Failed";
return 0;
case XF86_APM_SUSPEND_FAILED:
*str = "Suspend Request Failed";
return 0;
default:
*str = "Unknown Event";
return 0;
}
}
static int sigio_blocked_for_suspend;
static void
suspend(pmEvent event, Bool undo)
{
int i;
InputInfoPtr pInfo;
for (i = 0; i < xf86NumScreens; i++) {
if (xf86Screens[i]->EnableDisableFBAccess)
(*xf86Screens[i]->EnableDisableFBAccess) (i, FALSE);
}
pInfo = xf86InputDevs;
while (pInfo) {
DisableDevice(pInfo->dev, TRUE);
pInfo = pInfo->next;
}
sigio_blocked_for_suspend = xf86BlockSIGIO();
for (i = 0; i < xf86NumScreens; i++) {
if (xf86Screens[i]->PMEvent)
xf86Screens[i]->PMEvent(i, event, undo);
else {
xf86Screens[i]->LeaveVT(i, 0);
xf86Screens[i]->vtSema = FALSE;
}
}
xf86AccessLeave();
}
static void
resume(pmEvent event, Bool undo)
{
int i;
InputInfoPtr pInfo;
xf86AccessEnter();
for (i = 0; i < xf86NumScreens; i++) {
if (xf86Screens[i]->PMEvent)
xf86Screens[i]->PMEvent(i, event, undo);
else {
xf86Screens[i]->vtSema = TRUE;
xf86Screens[i]->EnterVT(i, 0);
}
}
xf86UnblockSIGIO(sigio_blocked_for_suspend);
for (i = 0; i < xf86NumScreens; i++) {
if (xf86Screens[i]->EnableDisableFBAccess)
(*xf86Screens[i]->EnableDisableFBAccess) (i, TRUE);
}
dixSaveScreens(serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset);
pInfo = xf86InputDevs;
while (pInfo) {
EnableDevice(pInfo->dev, TRUE);
pInfo = pInfo->next;
}
}
static void
DoApmEvent(pmEvent event, Bool undo)
{
int i, was_blocked;
switch (event) {
#if 0
case XF86_APM_SYS_STANDBY:
case XF86_APM_USER_STANDBY:
#endif
case XF86_APM_SYS_SUSPEND:
case XF86_APM_CRITICAL_SUSPEND: /*do we want to delay a critical suspend? */
case XF86_APM_USER_SUSPEND:
/* should we do this ? */
if (!undo && !suspended) {
suspend(event, undo);
suspended = TRUE;
}
else if (undo && suspended) {
resume(event, undo);
suspended = FALSE;
}
break;
#if 0
case XF86_APM_STANDBY_RESUME:
#endif
case XF86_APM_NORMAL_RESUME:
case XF86_APM_CRITICAL_RESUME:
if (suspended) {
resume(event, undo);
suspended = FALSE;
}
break;
default:
was_blocked = xf86BlockSIGIO();
for (i = 0; i < xf86NumScreens; i++) {
if (xf86Screens[i]->PMEvent) {
xf86Screens[i]->PMEvent(i, event, undo);
}
}
xf86UnblockSIGIO(was_blocked);
break;
}
}
#define MAX_NO_EVENTS 8
void
xf86HandlePMEvents(int fd, pointer data)
{
pmEvent events[MAX_NO_EVENTS];
int i, n;
Bool wait = FALSE;
if (!xf86PMGetEventFromOs)
return;
if ((n = xf86PMGetEventFromOs(fd, events, MAX_NO_EVENTS))) {
do {
for (i = 0; i < n; i++) {
const char *str = NULL;
int verb = eventName(events[i], &str);
xf86MsgVerb(X_INFO, verb, "PM Event received: %s\n", str);
DoApmEvent(events[i], FALSE);
switch (xf86PMConfirmEventToOs(fd, events[i])) {
case PM_WAIT:
wait = TRUE;
break;
case PM_CONTINUE:
wait = FALSE;
break;
case PM_FAILED:
DoApmEvent(events[i], TRUE);
wait = FALSE;
break;
default:
break;
}
}
if (wait)
n = xf86PMGetEventFromOs(fd, events, MAX_NO_EVENTS);
else
break;
} while (1);
}
}
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