/*
* ======== Timer_periodicNestStub ========
*/
Void Timer_periodicNestStub(UArg arg)
{
Timer_Object *obj;
ti_catalog_msp430_peripherals_timers_TimerRegs *timer;
obj = Timer_module->handles[(UInt)arg];
timer = (ti_catalog_msp430_peripherals_timers_TimerRegs *)
Timer_module->device[obj->id].baseAddr;
/* save previous threshold value */
obj->prevThreshold = timer->cc_compare_0;
/* set compare threshold for next periodic interrupt */
timer->cc_compare_0 += obj->period;
/* allow nesting of other interrupts ... */
timer->cctl_0 &= ~TIMER_COMPARE_INTR_ENABLE;
Hwi_enable();
/* call the tick function */
obj->tickFxn(obj->arg);
/* disable interrupts as unwind the ISR */
Hwi_disable();
timer->cctl_0 |= TIMER_COMPARE_INTR_ENABLE;
}
/*
* ======== Timer_isrStub ========
*/
Void Timer_isrStub(UArg arg)
{
ti_catalog_arm_peripherals_timers_TimerRegsM4 *timer;
Timer_Object *obj = (Timer_Object *)arg;
timer = (ti_catalog_arm_peripherals_timers_TimerRegsM4 *)
Timer_module->device[obj->id].baseAddr;
/* clear all timer interrupt status bits */
Timer_write(obj->altclk, &timer->GPTMICR, 0xFFFFFFFF);
/* for DYNAMIC, mode latch prevThreshold and detect rollovers */
if (obj->runMode == Timer_RunMode_DYNAMIC) {
/*
* if the current threshold is greater than the prevThreshold
* then a rollover has occurred.
*/
if (obj->prevThreshold < timer->GPTMTAMATCHR) {
obj->rollovers += 1;
}
obj->prevThreshold = timer->GPTMTAMATCHR;
}
obj->tickFxn(obj->arg);
}
/*
* ======== Timer_periodicStub ========
*/
Void Timer_periodicStub(UArg arg)
{
Timer_Object *obj = (Timer_Object *)arg;
volatile UInt32 dummy;
dummy = Hwi_nvic.STCSR; /* read to ack the interrupt */
Hwi_nvic.ICSR = 0x02000000; /* clear SysTick pending */
obj->tickFxn(obj->arg);
}
/*
* ======== Timer_oneShotStub ========
*/
Void Timer_oneShotStub(UArg arg)
{
Timer_Object *obj;
obj = Timer_module->handles[(UInt)arg];
/* stop the timer (and disable this interrupt source) */
Timer_stop(obj);
/* call the tick function */
obj->tickFxn(obj->arg);
}
/*
* ======== Timer_stub ========
*/
Void Timer_stub(UArg arg)
{
Timer_Object *obj = (Timer_Object *)arg;
TimerRegs *timer;
timer = (TimerRegs *)Timer_module->device[obj->id].baseAddr;
/* acknowledge the interrupt */
timer->tisr = obj->tier;
/* call the user's ISR */
obj->tickFxn(obj->arg);
}
/*
* ======== Timer_oneShotNestStub ========
*/
Void Timer_oneShotNestStub(UArg arg)
{
Timer_Object *obj;
obj = Timer_module->handles[(UInt)arg];
/* stop the timer (and disable this interrupt source) */
Timer_stop(obj);
/* enable interrupts to allow nesting */
Hwi_enable();
/* call the tick function */
obj->tickFxn(obj->arg);
/* disable interrupts as unwind the ISR */
Hwi_disable();
}
/*
* ======== Timer_periodicStub ========
*/
Void Timer_periodicStub(UArg arg)
{
Timer_Object *obj;
ti_catalog_msp430_peripherals_timers_TimerRegs *timer;
obj = Timer_module->handles[(UInt)arg];
timer = (ti_catalog_msp430_peripherals_timers_TimerRegs *)
Timer_module->device[obj->id].baseAddr;
/* save previous threshold value */
obj->prevThreshold = timer->cc_compare_0;
/* set compare threshold for next periodic interrupt */
timer->cc_compare_0 += obj->period;
/* call the tick function */
obj->tickFxn(obj->arg);
}
/*
* ======== Timer_dynStub ========
*/
Void Timer_dynStub(UArg arg)
{
Timer_Object *obj = (Timer_Object *)arg;
TimerRegs *timer;
UInt irqStatus;
timer = (TimerRegs *)Timer_module->device[obj->id].baseAddr;
/* get interrupt status flags */
irqStatus = timer->tisr;
/* if this is a rollover (overflow) interrupt ... */
if (irqStatus & TIMER_IRQSTATUS_OVF_IT_FLAG) {
/* acknowledge the interrupt */
timer->tisr |= TIMER_IRQSTATUS_OVF_IT_FLAG;
obj->rollovers++;
}
/* if this is a threshold match interrupt ... */
if (irqStatus & TIMER_IRQSTATUS_MAT_IT_FLAG) {
/* acknowledge the interrupt */
timer->tisr |= TIMER_IRQSTATUS_MAT_IT_FLAG;
/* save previous threshold value */
obj->prevThreshold = timer->tmar;
/* set compare threshold for next periodic interrupt */
timer->tmar += obj->period;
/* call the user's ISR */
obj->tickFxn(obj->arg);
}
}
