XilinxProcessorIPLib/drivers/zdma/examples/xzdma_linear_example.c
int XZDma_LinearExample(u16 DeviceId)
{
	int Status;
	XZDma_Config *Config;
	XZDma_DataConfig Configure; /* Configuration values */
	XZDma_Transfer Data[2];
	u32 Value;
	u32 Index;

	/*
	 * Initialize the ZDMA driver so that it's ready to use.
	 * Look up the configuration in the config table,
	 * then initialize it.
	 */
	Config = XZDma_LookupConfig(DeviceId);
	if (NULL == Config) {
		return XST_FAILURE;
	}

	Status = XZDma_CfgInitialize(&ZDma, Config, Config->BaseAddress);
	if (Status != XST_SUCCESS) {
		return XST_FAILURE;
	}
	/*
	 * Performs the self-test to check hardware build.
	 */
	Status = XZDma_SelfTest(&ZDma);
	if (Status != XST_SUCCESS) {
		return XST_FAILURE;
	}

	/* Filling the buffers for data transfer */
	Value = TESTDATA1;
	for (Index = 0; Index < (DESCRIPTOR1_DATA_SIZE/4); Index++) {
		SrcBuf[Index] = Value++;
	}
	Value = TESTDATA2;
	for (Index = 0; Index < (DESCRIPTOR2_DATA_SIZE/4); Index++) {
		Src1Buf[Index] = Value++;
	}

	/* ZDMA has set in simple transfer of Normal mode */
	Status = XZDma_SetMode(&ZDma, TRUE, XZDMA_NORMAL_MODE);
	if (Status != XST_SUCCESS) {
		return XST_FAILURE;
	}

	/* Allocated memory starting address should be 64 bit aligned */
	XZDma_CreateBDList(&ZDma, XZDMA_LINEAR, (UINTPTR)AlloMem, 256);

	/* Interrupt call back has been set */
	XZDma_SetCallBack(&ZDma, XZDMA_HANDLER_DONE,
				(void *)DoneHandler, &ZDma);
	XZDma_SetCallBack(&ZDma, XZDMA_HANDLER_ERROR,
				(void *)ErrorHandler, &ZDma);
	/*
	 * Connect to the interrupt controller.
	 */
	Status = SetupInterruptSystem(&Intc, &(ZDma),
			ZDMA_INTR_DEVICE_ID);
	if (Status != XST_SUCCESS) {
		return XST_FAILURE;
	}

	/* Configuration settings */
	XZDma_GetChDataConfig(&ZDma, &Configure);
	Configure.OverFetch = 0;
	Configure.SrcIssue = 0x1F;
	Configure.SrcBurstType = XZDMA_INCR_BURST;
	Configure.SrcBurstLen = 0xF;
	Configure.DstBurstType = XZDMA_INCR_BURST;
	Configure.DstBurstLen = 0xF;
	if (Config->IsCacheCoherent) {
		Configure.SrcCache = 0xF;
		Configure.DstCache = 0xF;
	}
	XZDma_SetChDataConfig(&ZDma, &Configure);

	/* Filling the data transfer elements */
	Data[0].SrcAddr = (UINTPTR)SrcBuf;
	Data[0].Size = DESCRIPTOR1_DATA_SIZE;
	Data[0].DstAddr = (UINTPTR)DstBuf;
	if (Config->IsCacheCoherent) {
	    Data[0].SrcCoherent = 1;
	    Data[0].DstCoherent = 1;
	} else {
	    Data[0].SrcCoherent = 0;
	    Data[0].DstCoherent = 0;
	}
	    Data[0].Pause = 1;

	Data[1].SrcAddr = (UINTPTR)Src1Buf;
	Data[1].Size = DESCRIPTOR2_DATA_SIZE;
	Data[1].DstAddr = (UINTPTR)Dst1Buf;
	if (Config->IsCacheCoherent) {
	    Data[1].SrcCoherent = 1;
	    Data[1].DstCoherent = 1;
	}
	    Data[1].Pause = 0;

	/*
	 * Invalidating destination address and flushing
	 * source address in cache before the start of DMA data transfer.
	 */
	if (!Config->IsCacheCoherent) {
	    Xil_DCacheFlushRange((INTPTR)Data[0].SrcAddr, Data[0].Size);
	    Xil_DCacheInvalidateRange((INTPTR)Data[0].DstAddr, Data[0].Size);
	    Xil_DCacheFlushRange((INTPTR)Data[1].SrcAddr, Data[1].Size);
	    Xil_DCacheInvalidateRange((INTPTR)Data[1].DstAddr, Data[1].Size);
	}
	/* Enable required interrupts */
	XZDma_EnableIntr(&ZDma, (XZDMA_IXR_DMA_DONE_MASK |
					XZDMA_IXR_DMA_PAUSE_MASK));
	XZDma_Start(&ZDma, Data, 2); /* Initiates the data transfer */

	/* wait until pause interrupt is generated and has been resumed */
	while (Pause == 0);

	/* Resuming the ZDMA core */
	XZDma_Resume(&ZDma);

	while (Done == 0); /* Wait till DMA done interrupt generated */

	/* Disable relevant interrupts */
	XZDma_DisableIntr(&ZDma, (XZDMA_IXR_DMA_DONE_MASK |
						XZDMA_IXR_DMA_PAUSE_MASK));

	/* Before the destination buffer data is accessed do one more invalidation
         * to ensure that the latest data is read. This is as per ARM recommendations.
         */
	if (!Config->IsCacheCoherent) {
		Xil_DCacheInvalidateRange((INTPTR)Data[0].DstAddr, Data[0].Size);
		Xil_DCacheInvalidateRange((INTPTR)Data[1].DstAddr, Data[1].Size);
	}
	/* Validating the data transfer */
	for (Index = 0; Index < (DESCRIPTOR1_DATA_SIZE/4); Index++) {
		if (SrcBuf[Index] != DstBuf[Index]) {
			return XST_FAILURE;
		}
	}
	for (Index = 0; Index < (DESCRIPTOR2_DATA_SIZE/4); Index++) {
		if (Src1Buf[Index] != Dst1Buf[Index]) {
			return XST_FAILURE;
		}
	}

	/* Reset the DMA to remove all configurations done in this example  */
	XZDma_Reset(&ZDma);

	return XST_SUCCESS;

}
/*****************************************************************************/
/**
*
* This function does a test of the data transfer in linear mode on the ZDMA
* driver.
*
* @param	DeviceId is the XPAR_<ZDMA Instance>_DEVICE_ID value from
*		xparameters.h.
*
* @return
*		- XST_SUCCESS if successful.
*		- XST_FAILURE if failed.
*
* @note		None.
*
******************************************************************************/
This function does a test of the data transfer in linear mode on the ZDMA
driver.
This function does a test of the data transfer in linear mode on the ZDMA driver .
int XZDma_LinearExample(u16 DeviceId)
{
	int Status;
	XZDma_Config *Config;
	XZDma_DataConfig Configure; 
	XZDma_Transfer Data[2];
	u32 Value;
	u32 Index;
	Config = XZDma_LookupConfig(DeviceId);
	if (NULL == Config) {
		return XST_FAILURE;
	}
	Status = XZDma_CfgInitialize(&ZDma, Config, Config->BaseAddress);
	if (Status != XST_SUCCESS) {
		return XST_FAILURE;
	}
	Status = XZDma_SelfTest(&ZDma);
	if (Status != XST_SUCCESS) {
		return XST_FAILURE;
	}
	Value = TESTDATA1;
	for (Index = 0; Index < (DESCRIPTOR1_DATA_SIZE/4); Index++) {
		SrcBuf[Index] = Value++;
	}
	Value = TESTDATA2;
	for (Index = 0; Index < (DESCRIPTOR2_DATA_SIZE/4); Index++) {
		Src1Buf[Index] = Value++;
	}
	Status = XZDma_SetMode(&ZDma, TRUE, XZDMA_NORMAL_MODE);
	if (Status != XST_SUCCESS) {
		return XST_FAILURE;
	}
	XZDma_CreateBDList(&ZDma, XZDMA_LINEAR, (UINTPTR)AlloMem, 256);
	XZDma_SetCallBack(&ZDma, XZDMA_HANDLER_DONE,
				(void *)DoneHandler, &ZDma);
	XZDma_SetCallBack(&ZDma, XZDMA_HANDLER_ERROR,
				(void *)ErrorHandler, &ZDma);
	Status = SetupInterruptSystem(&Intc, &(ZDma),
			ZDMA_INTR_DEVICE_ID);
	if (Status != XST_SUCCESS) {
		return XST_FAILURE;
	}
	XZDma_GetChDataConfig(&ZDma, &Configure);
	Configure.OverFetch = 0;
	Configure.SrcIssue = 0x1F;
	Configure.SrcBurstType = XZDMA_INCR_BURST;
	Configure.SrcBurstLen = 0xF;
	Configure.DstBurstType = XZDMA_INCR_BURST;
	Configure.DstBurstLen = 0xF;
	if (Config->IsCacheCoherent) {
		Configure.SrcCache = 0xF;
		Configure.DstCache = 0xF;
	}
	XZDma_SetChDataConfig(&ZDma, &Configure);
	Data[0].SrcAddr = (UINTPTR)SrcBuf;
	Data[0].Size = DESCRIPTOR1_DATA_SIZE;
	Data[0].DstAddr = (UINTPTR)DstBuf;
	if (Config->IsCacheCoherent) {
	    Data[0].SrcCoherent = 1;
	    Data[0].DstCoherent = 1;
	} else {
	    Data[0].SrcCoherent = 0;
	    Data[0].DstCoherent = 0;
	}
	    Data[0].Pause = 1;
	Data[1].SrcAddr = (UINTPTR)Src1Buf;
	Data[1].Size = DESCRIPTOR2_DATA_SIZE;
	Data[1].DstAddr = (UINTPTR)Dst1Buf;
	if (Config->IsCacheCoherent) {
	    Data[1].SrcCoherent = 1;
	    Data[1].DstCoherent = 1;
	}
	    Data[1].Pause = 0;
	if (!Config->IsCacheCoherent) {
	    Xil_DCacheFlushRange((INTPTR)Data[0].SrcAddr, Data[0].Size);
	    Xil_DCacheInvalidateRange((INTPTR)Data[0].DstAddr, Data[0].Size);
	    Xil_DCacheFlushRange((INTPTR)Data[1].SrcAddr, Data[1].Size);
	    Xil_DCacheInvalidateRange((INTPTR)Data[1].DstAddr, Data[1].Size);
	}
	XZDma_EnableIntr(&ZDma, (XZDMA_IXR_DMA_DONE_MASK |
					XZDMA_IXR_DMA_PAUSE_MASK));
	XZDma_Start(&ZDma, Data, 2); 
	while (Pause == 0);
	XZDma_Resume(&ZDma);
	while (Done == 0); 
	XZDma_DisableIntr(&ZDma, (XZDMA_IXR_DMA_DONE_MASK |
						XZDMA_IXR_DMA_PAUSE_MASK));
	if (!Config->IsCacheCoherent) {
		Xil_DCacheInvalidateRange((INTPTR)Data[0].DstAddr, Data[0].Size);
		Xil_DCacheInvalidateRange((INTPTR)Data[1].DstAddr, Data[1].Size);
	}
	for (Index = 0; Index < (DESCRIPTOR1_DATA_SIZE/4); Index++) {
		if (SrcBuf[Index] != DstBuf[Index]) {
			return XST_FAILURE;
		}
	}
	for (Index = 0; Index < (DESCRIPTOR2_DATA_SIZE/4); Index++) {
		if (Src1Buf[Index] != Dst1Buf[Index]) {
			return XST_FAILURE;
		}
	}
	XZDma_Reset(&ZDma);
	return XST_SUCCESS;
}
int XZDma_LinearExample ( u16 DeviceId ) { int Status ; XZDma_Config * Config ; XZDma_DataConfig Configure ; XZDma_Transfer Data [ 2 ] ; u32 Value ; u32 Index ; Config = XZDma_LookupConfig ( DeviceId ) ; if ( NULL == Config ) { return XST_FAILURE ; } Status = XZDma_CfgInitialize ( & ZDma , Config , Config -> BaseAddress ) ; if ( Status != XST_SUCCESS ) { return XST_FAILURE ; } Status = XZDma_SelfTest ( & ZDma ) ; if ( Status != XST_SUCCESS ) { return XST_FAILURE ; } Value = TESTDATA1 ; for ( Index = 0 ; Index < ( DESCRIPTOR1_DATA_SIZE / 4 ) ; Index ++ ) { SrcBuf [ Index ] = Value ++ ; } Value = TESTDATA2 ; for ( Index = 0 ; Index < ( DESCRIPTOR2_DATA_SIZE / 4 ) ; Index ++ ) { Src1Buf [ Index ] = Value ++ ; } Status = XZDma_SetMode ( & ZDma , TRUE , XZDMA_NORMAL_MODE ) ; if ( Status != XST_SUCCESS ) { return XST_FAILURE ; } XZDma_CreateBDList ( & ZDma , XZDMA_LINEAR , ( UINTPTR ) AlloMem , 256 ) ; XZDma_SetCallBack ( & ZDma , XZDMA_HANDLER_DONE , ( void * ) DoneHandler , & ZDma ) ; XZDma_SetCallBack ( & ZDma , XZDMA_HANDLER_ERROR , ( void * ) ErrorHandler , & ZDma ) ; Status = SetupInterruptSystem ( & Intc , & ( ZDma ) , ZDMA_INTR_DEVICE_ID ) ; if ( Status != XST_SUCCESS ) { return XST_FAILURE ; } XZDma_GetChDataConfig ( & ZDma , & Configure ) ; Configure . OverFetch = 0 ; Configure . SrcIssue = 0x1F ; Configure . SrcBurstType = XZDMA_INCR_BURST ; Configure . SrcBurstLen = 0xF ; Configure . DstBurstType = XZDMA_INCR_BURST ; Configure . DstBurstLen = 0xF ; if ( Config -> IsCacheCoherent ) { Configure . SrcCache = 0xF ; Configure . DstCache = 0xF ; } XZDma_SetChDataConfig ( & ZDma , & Configure ) ; Data [ 0 ] . SrcAddr = ( UINTPTR ) SrcBuf ; Data [ 0 ] . Size = DESCRIPTOR1_DATA_SIZE ; Data [ 0 ] . DstAddr = ( UINTPTR ) DstBuf ; if ( Config -> IsCacheCoherent ) { Data [ 0 ] . SrcCoherent = 1 ; Data [ 0 ] . DstCoherent = 1 ; } else { Data [ 0 ] . SrcCoherent = 0 ; Data [ 0 ] . DstCoherent = 0 ; } Data [ 0 ] . Pause = 1 ; Data [ 1 ] . SrcAddr = ( UINTPTR ) Src1Buf ; Data [ 1 ] . Size = DESCRIPTOR2_DATA_SIZE ; Data [ 1 ] . DstAddr = ( UINTPTR ) Dst1Buf ; if ( Config -> IsCacheCoherent ) { Data [ 1 ] . SrcCoherent = 1 ; Data [ 1 ] . DstCoherent = 1 ; } Data [ 1 ] . Pause = 0 ; if ( ! Config -> IsCacheCoherent ) { Xil_DCacheFlushRange ( ( INTPTR ) Data [ 0 ] . SrcAddr , Data [ 0 ] . Size ) ; Xil_DCacheInvalidateRange ( ( INTPTR ) Data [ 0 ] . DstAddr , Data [ 0 ] . Size ) ; Xil_DCacheFlushRange ( ( INTPTR ) Data [ 1 ] . SrcAddr , Data [ 1 ] . Size ) ; Xil_DCacheInvalidateRange ( ( INTPTR ) Data [ 1 ] . DstAddr , Data [ 1 ] . Size ) ; } XZDma_EnableIntr ( & ZDma , ( XZDMA_IXR_DMA_DONE_MASK | XZDMA_IXR_DMA_PAUSE_MASK ) ) ; XZDma_Start ( & ZDma , Data , 2 ) ; while ( Pause == 0 ) ; XZDma_Resume ( & ZDma ) ; while ( Done == 0 ) ; XZDma_DisableIntr ( & ZDma , ( XZDMA_IXR_DMA_DONE_MASK | XZDMA_IXR_DMA_PAUSE_MASK ) ) ; if ( ! Config -> IsCacheCoherent ) { Xil_DCacheInvalidateRange ( ( INTPTR ) Data [ 0 ] . DstAddr , Data [ 0 ] . Size ) ; Xil_DCacheInvalidateRange ( ( INTPTR ) Data [ 1 ] . DstAddr , Data [ 1 ] . Size ) ; } for ( Index = 0 ; Index < ( DESCRIPTOR1_DATA_SIZE / 4 ) ; Index ++ ) { if ( SrcBuf [ Index ] != DstBuf [ Index ] ) { return XST_FAILURE ; } } for ( Index = 0 ; Index < ( DESCRIPTOR2_DATA_SIZE / 4 ) ; Index ++ ) { if ( Src1Buf [ Index ] != Dst1Buf [ Index ] ) { return XST_FAILURE ; } } XZDma_Reset ( & ZDma ) ; return XST_SUCCESS ; }
This function does a test of the data transfer in linear mode on the ZDMA
driver.
This function does a test of the data transfer in linear mode on the ZDMA driver .
/* Configuration values */ /*
	 * Initialize the ZDMA driver so that it's ready to use.
	 * Look up the configuration in the config table,
	 * then initialize it.
	 */ /*
	 * Performs the self-test to check hardware build.
	 */ /* Filling the buffers for data transfer */ /* ZDMA has set in simple transfer of Normal mode */ /* Allocated memory starting address should be 64 bit aligned */ /* Interrupt call back has been set */ /*
	 * Connect to the interrupt controller.
	 */ /* Configuration settings */ /* Filling the data transfer elements */ /*
	 * Invalidating destination address and flushing
	 * source address in cache before the start of DMA data transfer.
	 */ /* Enable required interrupts */ /* Initiates the data transfer */ /* wait until pause interrupt is generated and has been resumed */ /* Resuming the ZDMA core */ /* Wait till DMA done interrupt generated */ /* Disable relevant interrupts */ /* Before the destination buffer data is accessed do one more invalidation
         * to ensure that the latest data is read. This is as per ARM recommendations.
         */ /* Validating the data transfer */ /* Reset the DMA to remove all configurations done in this example  */