Notes

This module declares functions for controlling the alarm interrupt as well as a callback function for the interrupt handler. This module is abstract, that is, an implementation must be provided by a port in order to support alarms.

Porting

The port must implement an interrupt handler, which in turn must execute the callback function. On start-up, the alarm interrupt must be disabled.

Include

Functions

ao_ir_alarm

void ao_ir_alarm();

Notifies the kernel of an expired alarm. This function is the callback for the alarm interrupt handler. It is implemented by the ao_alarm.h module.

ao_ir_alarm_enable

ao_ir_alarm_disable

void ao_ir_alarm_enable();
void ao_ir_alarm_disable();

Enables or disables the interrupt.

ao_ir_alarm_request

ao_ir_alarm_reply

void ao_ir_alarm_request();
void ao_ir_alarm_reply();

Requests the interrupt or replies thereto.

ao_ir_alarm_set

void ao_ir_alarm_set(ao_time_t t);

Sets the time for the next interrupt.