void
xadapter_timer_handler(void *p)
{
timer_callback();
XTime_TSRClearStatusBits(XREG_TSR_CLEAR_ALL);
}
void
platform_setup_timer()
{
#ifdef XPAR_CPU_PPC440_CORE_CLOCK_FREQ_HZ
XExc_RegisterHandler(XEXC_ID_DEC_INT, (XExceptionHandler)xadapter_timer_handler, NULL);
/* Set DEC to interrupt every 250 mseconds */
XTime_DECSetInterval(PIT_INTERVAL);
XTime_TSRClearStatusBits(XREG_TSR_CLEAR_ALL);
XTime_DECEnableAutoReload();
#else
XExc_RegisterHandler(XEXC_ID_PIT_INT, (XExceptionHandler)xadapter_timer_handler, NULL);
/* Set PIT to interrupt every 250 mseconds */
XTime_PITSetInterval(PIT_INTERVAL);
XTime_TSRClearStatusBits(XREG_TSR_CLEAR_ALL);
XTime_PITEnableAutoReload();
XTime_PITEnableInterrupt();
#endif
}
//***************************************************************
//******************* INTERRUPT FUNCTIONS ***********************
//***************************************************************
void Interrupt_Init(void)
{
//PUSH BUTTON INTERRUPT
/* Code */
XIntc_Initialize(&Intc, INTC_DEVICE_ID);
XGpio_Initialize(&Gpio, GPIO_DEVICE_ID);
XIntc_Connect(&Intc, INTR_ID, GpioIsr, &Gpio);
/* Buttons are all inputs */
XGpio_SetDataDirection(&Gpio, BUTTON_CHANNEL, GPIO_ALL_BUTTONS);
XGpio_InterruptEnable(&Gpio, BUTTON_INTERRUPT);
XGpio_InterruptGlobalEnable(&Gpio);
/* Enable the Interrupt vector at the interrupt controller */
XIntc_Enable(&Intc, INTR_ID);
XExc_Init();
/*****************************************************************
* Initialize the PPC405 exception table and register the interrupt
* controller handler with the exception table
******************************************************************/
XExc_RegisterHandler(XEXC_ID_NON_CRITICAL_INT, (XExceptionHandler)XIntc_InterruptHandler, &Intc);
/* Now Register Timer Interrupt */
XExc_RegisterHandler(XEXC_ID_PIT_INT, (XExceptionHandler)TimerIsr, (void *)0);
/* Enable non-critical exceptions in the PowerPC */
XExc_mEnableExceptions(XEXC_NON_CRITICAL);
/*******************************************************************
* Start the interrput controller such that interrupts are recognized
* and handled by the processor.
********************************************************************/
XIntc_Start(&Intc, XIN_REAL_MODE);
//TIMER INTERRUPT
/* Set Timer Interval (1 Sec) */
XTime_PITSetInterval(0x0F000000);
/* Automatically Restarts Timer */
XTime_PITEnableAutoReload();
/* Clear Timer Reg */
XTime_TSRClearStatusBits(XREG_TSR_CLEAR_ALL);
/* Clear Queued Timer Interrupts */
XTime_PITClearInterrupt();
/* Enable Interrupt */
XTime_PITEnableInterrupt();
}
void XTime_WDTClearResetStatus(void)
{
XTime_TSRClearStatusBits(XREG_TSR_WDT_RESET_STATUS_11);
}
void XTime_WDTEnableNextWatchdog(void)
{
XTime_TSRClearStatusBits(XREG_TSR_WDT_ENABLE_NEXT_WATCHDOG);
}
void XTime_WDTClearInterrupt(void)
{
XTime_TSRClearStatusBits(XREG_TSR_WDT_INTERRUPT_STATUS);
}
