/*
 * XSCUTimer vs sleep example
 */

/*

#include "xscutimer.h"
#include "xscugic.h"
#include "xil_exception.h"
#include "xparameters.h"
#include "xgpio.h"

#define TIMER_DEVICE_ID		XPAR_XSCUTIMER_0_DEVICE_ID
#define INTC_DEVICE_ID		XPAR_SCUGIC_SINGLE_DEVICE_ID
#define TIMER_IRPT_INTR		XPAR_SCUTIMER_INTR

#define TIMER_LOAD_VALUE 325000000

static XScuTimer Timer;
static XScuGic Intc;

static void TimerIntrHandler(void *CallBackRef);
static void SetupInterruptSystem(XScuTimer *TMRInstancePtr, XScuTimer_Config *TMRConfigPtr, XScuGic *IntcInstancePtr, XScuGic_Config *IntcConfigPtr);

static int tog=0;
static XGpio leds;
static int cntintr=0;

int main(){

	xil_printf("Hello\r\n");
    XGpio_Initialize(&leds, XPAR_LEDS_DEVICE_ID);
    XGpio_SetDataDirection(&leds, 1, 0);
    XGpio_DiscreteWrite(&leds, 1, tog);

	XScuTimer_Config *TMRConfigPtr;
	XScuGic_Config *IntcConfigPtr;

	//init_platform();

	TMRConfigPtr = XScuTimer_LookupConfig(TIMER_DEVICE_ID);
	IntcConfigPtr = XScuGic_LookupConfig(INTC_DEVICE_ID);

	SetupInterruptSystem(&Timer, TMRConfigPtr, &Intc, IntcConfigPtr);

	XScuTimer_Start(&Timer);

	while(1){
		;

		sleep(10);
		xil_printf("Interrupts:%d\r\n",cntintr) ;
	}

	return 0;
}

static void TimerIntrHandler(void *CallBackRef){
	XScuTimer *TimerInstancePtr = (XScuTimer *) CallBackRef;
	XScuTimer_ClearInterruptStatus(TimerInstancePtr);
	//xil_printf("Event!\n\r");
	cntintr++;
        // Toggle less significant Led
	tog = ~tog & 1;
	XGpio_DiscreteWrite(&leds, 1, tog);
}

static void SetupInterruptSystem(XScuTimer *TMRInstancePtr, XScuTimer_Config *TMRConfigPtr, XScuGic *IntcInstancePtr, XScuGic_Config *IntcConfigPtr){
	//timer initialization
	XScuTimer_CfgInitialize(TMRInstancePtr, TMRConfigPtr, TMRConfigPtr->BaseAddr);
	//load the timer
	XScuTimer_LoadTimer(TMRInstancePtr, TIMER_LOAD_VALUE);
	XScuTimer_EnableAutoReload(TMRInstancePtr);

	XScuGic_CfgInitialize(IntcInstancePtr, IntcConfigPtr, IntcConfigPtr->CpuBaseAddress);
	Xil_ExceptionInit();
	Xil_ExceptionRegisterHandler(XIL_EXCEPTION_ID_IRQ_INT, (Xil_ExceptionHandler)XScuGic_InterruptHandler, (void *)IntcInstancePtr);
	Xil_ExceptionEnable();

	XScuGic_Connect(IntcInstancePtr, TIMER_IRPT_INTR, (Xil_ExceptionHandler)TimerIntrHandler, (void *)TMRInstancePtr);
	XScuGic_Enable(IntcInstancePtr, TIMER_IRPT_INTR);
	XScuTimer_EnableInterrupt(TMRInstancePtr);
}