diff options
Diffstat (limited to 'hw/xfree86/common/xf86PM.c')
| -rw-r--r-- | hw/xfree86/common/xf86PM.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/hw/xfree86/common/xf86PM.c b/hw/xfree86/common/xf86PM.c new file mode 100644 index 000000000..03f5bdec1 --- /dev/null +++ b/hw/xfree86/common/xf86PM.c @@ -0,0 +1,188 @@ +/* $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86PM.c,v 3.8 2002/09/29 23:54:34 keithp Exp $ */ + + +#include "X.h" +#include "xf86.h" +#include "xf86Priv.h" +#include "xf86Xinput.h" + +int (*xf86PMGetEventFromOs)(int fd,pmEvent *events,int num) = NULL; +pmWait (*xf86PMConfirmEventToOs)(int fd,pmEvent event) = NULL; + +static Bool suspended = FALSE; + +static char * +eventName(pmEvent event) +{ + switch(event) { + case XF86_APM_SYS_STANDBY: return ("System Standby Request"); + case XF86_APM_SYS_SUSPEND: return ("System Suspend Request"); + case XF86_APM_CRITICAL_SUSPEND: return ("Critical Suspend"); + case XF86_APM_USER_STANDBY: return ("User System Standby Request"); + case XF86_APM_USER_SUSPEND: return ("User System Suspend Request"); + case XF86_APM_STANDBY_RESUME: return ("System Standby Resume"); + case XF86_APM_NORMAL_RESUME: return ("Normal Resume System"); + case XF86_APM_CRITICAL_RESUME: return ("Critical Resume System"); + case XF86_APM_LOW_BATTERY: return ("Battery Low"); + case XF86_APM_POWER_STATUS_CHANGE: return ("Power Status Change"); + case XF86_APM_UPDATE_TIME: return ("Update Time"); + case XF86_APM_CAPABILITY_CHANGED: return ("Capability Changed"); + case XF86_APM_STANDBY_FAILED: return ("Standby Request Failed"); + case XF86_APM_SUSPEND_FAILED: return ("Suspend Request Failed"); + default: return ("Unknown Event"); + } +} + +static void +suspend (pmEvent event, Bool undo) +{ + int i; + InputInfoPtr pInfo; + + xf86inSuspend = TRUE; + + for (i = 0; i < xf86NumScreens; i++) { + xf86EnableAccess(xf86Screens[i]); + if (xf86Screens[i]->EnableDisableFBAccess) + (*xf86Screens[i]->EnableDisableFBAccess) (i, FALSE); + } +#if !defined(__EMX__) + pInfo = xf86InputDevs; + while (pInfo) { + DisableDevice(pInfo->dev); + pInfo = pInfo->next; + } +#endif + xf86EnterServerState(SETUP); + for (i = 0; i < xf86NumScreens; i++) { + xf86EnableAccess(xf86Screens[i]); + if (xf86Screens[i]->PMEvent) + xf86Screens[i]->PMEvent(i,event,undo); + else { + xf86Screens[i]->LeaveVT(i, 0); + xf86Screens[i]->vtSema = FALSE; + } + } + xf86AccessLeave(); + xf86AccessLeaveState(); +} + +static void +resume(pmEvent event, Bool undo) +{ + int i; + InputInfoPtr pInfo; + + xf86AccessEnter(); + xf86EnterServerState(SETUP); + for (i = 0; i < xf86NumScreens; i++) { + xf86EnableAccess(xf86Screens[i]); + if (xf86Screens[i]->PMEvent) + xf86Screens[i]->PMEvent(i,event,undo); + else { + xf86Screens[i]->vtSema = TRUE; + xf86Screens[i]->EnterVT(i, 0); + } + } + xf86EnterServerState(OPERATING); + for (i = 0; i < xf86NumScreens; i++) { + xf86EnableAccess(xf86Screens[i]); + if (xf86Screens[i]->EnableDisableFBAccess) + (*xf86Screens[i]->EnableDisableFBAccess) (i, TRUE); + } + SaveScreens(SCREEN_SAVER_FORCER, ScreenSaverReset); +#if !defined(__EMX__) + pInfo = xf86InputDevs; + while (pInfo) { + EnableDevice(pInfo->dev); + pInfo = pInfo->next; + } +#endif + xf86inSuspend = FALSE; +} + +static void +DoApmEvent(pmEvent event, Bool undo) +{ + /* + * we leave that as a global function for now. I don't know if + * this might cause problems in the future. It is a global server + * variable therefore it needs to be in a server info structure + */ + int i; + + switch(event) { + case XF86_APM_SYS_STANDBY: + case XF86_APM_SYS_SUSPEND: + case XF86_APM_CRITICAL_SUSPEND: /*do we want to delay a critical suspend?*/ + case XF86_APM_USER_STANDBY: + 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; + case XF86_APM_STANDBY_RESUME: + case XF86_APM_NORMAL_RESUME: + case XF86_APM_CRITICAL_RESUME: + if (suspended) { + resume(event,undo); + suspended = FALSE; + } + break; + default: + xf86EnterServerState(SETUP); + for (i = 0; i < xf86NumScreens; i++) { + xf86EnableAccess(xf86Screens[i]); + if (xf86Screens[i]->PMEvent) + xf86Screens[i]->PMEvent(i,event,undo); + } + xf86EnterServerState(OPERATING); + 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++) { + xf86MsgVerb(X_INFO,3,"PM Event received: %s\n", + eventName(events[i])); + 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); + } +} |