xzdma_linkedlist_example.c File Reference

Overview

This file contains the example using XZDma driver to do data transfer in Linked list mode on ZDMA device.

MODIFICATION HISTORY:

Ver   Who     Date     Changes



1.0   vns     2/27/15  First release
      ms      04/05/17 Modified comment lines notation in functions to
                       avoid unnecessary description to get displayed
                       while generating doxygen.
1.3   mus    08/14/17  Do not perform cache operations if CCI is enabled
1.4   adk    11/02/17  Updated example to fix compilation errors for IAR
                 compiler.
1.7   adk    21/03/19  Fix alignment pragmas in the example for IAR compiler.
1.13  asa    08/24/21  Make changes to add a missing data invalidation
                       operation just before the destination buffer data is
                       being read. Along with the changes were done to ensure
                       proper sizes for linked list buffers.
                       Changes were done to allocate Src1Buf and Dst1Buf
                       properly.
                       Changes were done for other cleanups and also to
                       ensure that the DMA is reset before the program exits.
1.16  sa     09/29/22  Fix infinite loops in the example.

#include "xzdma.h"
#include "xparameters.h"
#include "xinterrupt_wrap.h"
#include "bspconfig.h"
#include "xil_util.h"
#include "xplatform_info.h"

Macros
#define	TESTDATA1   0xABCD1230
	Test data. More...
#define	TESTDATA2   0x00005000
	Test data. More...
#define	DESCRIPTOR1_DATA_SIZE   1024
	Descriptor 1 data in bytes. More...
#define	DESCRIPTOR2_DATA_SIZE   64
	Descriptor 2 data in bytes. More...

Functions
int	XZDma_LinkedListExample (UINTPTR BaseAddress)
	This function does a test of the data transfer in linked mode on the ZDMA driver. More...
int	main (void)
	Main function to call the example. More...

Variables
XZDma	ZDma
	Instance of the ZDMA Device. More...

Macro Definition Documentation

#define DESCRIPTOR1_DATA_SIZE   1024

Descriptor 1 data in bytes.

Referenced by XZDma_LinkedListExample().

#define DESCRIPTOR2_DATA_SIZE   64

Descriptor 2 data in bytes.

Referenced by XZDma_LinkedListExample().

#define TESTDATA1   0xABCD1230

Test data.

Referenced by XZDma_LinkedListExample().

#define TESTDATA2   0x00005000

Test data.

Referenced by XZDma_LinkedListExample().

Function Documentation

int main

(

void

)

Main function to call the example.

Returns

• XST_SUCCESS if successful.
• XST_FAILURE if failed.

Note

None.

References XZDma_LinkedListExample().

int XZDma_LinkedListExample

(

UINTPTR

BaseAddress

)

This function does a test of the data transfer in linked mode on the ZDMA driver.

Parameters

BaseAddress

contains the base address of the ZDMA device

Returns

• XST_SUCCESS if successful.
• XST_FAILURE if failed.

Note

None.

References AlloMem, XZDma_Config::BaseAddress, DESCRIPTOR1_DATA_SIZE, DESCRIPTOR2_DATA_SIZE, Dst1Buf, XZDma_Transfer::DstAddr, DstBuf, XZDma_DataConfig::DstCache, XZDma_Transfer::DstCoherent, XZDma_Config::IntrId, XZDma_Config::IntrParent, XZDma_Config::IsCacheCoherent, XZDma_DataConfig::OverFetch, XZDma_Transfer::Pause, XZDma_Transfer::Size, Src1Buf, XZDma_Transfer::SrcAddr, SrcBuf, XZDma_DataConfig::SrcCache, XZDma_Transfer::SrcCoherent, TESTDATA1, TESTDATA2, XZDma_CfgInitialize(), XZDma_CreateBDList(), XZDma_DisableIntr, XZDma_EnableIntr, XZDma_GetChDataConfig(), XZDMA_HANDLER_DONE, XZDma_IntrHandler(), XZDMA_IXR_DMA_DONE_MASK, XZDMA_LINKEDLIST, XZDma_LookupConfig(), XZDMA_NORMAL_MODE, XZDma_Reset(), XZDma_SelfTest(), XZDma_SetCallBack(), XZDma_SetChDataConfig(), XZDma_SetMode(), and XZDma_Start().

Referenced by main().

Variable Documentation

XZDma ZDma

Instance of the ZDMA Device.