#include <twl/spi.h>PMExitFactor PM_GetExitFactor( void );
None.
Cause for exit processing.
Gets the cause that led to exit processing.
The return values have the following meanings. When the system has not entered exit processing, the return value is PM_EXIT_FACTOR_NONE.
Return Values |
Cause for exit processing |
|---|---|
PM_EXIT_FACTOR_PWSW |
The Power Button was detected to be held down longer than a fixed amount of time |
PM_EXIT_FACTOR_BATTERY |
The ARM7 detected a drop in battery power |
PM_EXIT_FACTOR_USER |
The user forced a hardware reset or power-off |
PM_EXIT_FACTOR_NONE |
(Not in exit processing.) |
Reset or Power-Off Transition
When the value is PM_EXIT_FACTOR_PWSW, it is not yet known whether this will lead to a hardware reset or whether it will lead to a power-off. Which sequence it becomes depends upon the time at which the Power Button is released.
When the value is PM_EXIT_FACTOR_BATTERY, the power-off sequence will begin.
When the value is PM_EXIT_FACTOR_USER, the PM_ForceToResetHardware or PM_ForceToPowerOff function has been called, so the hardware reset or shutdown sequence will begin.
In any case, the exit callback must end promptly.
The PM_EXIT_FACTOR_USER Return Value
This value is set when execution has passed through the PM_ForceToResetHardware or PM_ForceToPowerOff function. A value of PM_EXIT_FACTOR_USER will be set even if these functions are called ultimately from another system function rather than directly by the user. For example, a call to the OS_JumpToSystemMenu function ultimately causes execution to reach the PM_ForceToResetHardware function.
PM_SetExitCallbackInfo, PM_SetAutoExit, PM_GetAutoExit
2008/05/01 Added PM_EXIT_FACTOR_USER. 2008/02/07 Initial version.
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