xiicps_sinit.c

自学ZedBoard：使用IP通过ARM PS访问FPGA（源代码）

/* $Id: xiicps_sinit.c,v 1.1.2.1 2011/01/20 03:45:05 sadanan Exp $ */
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/**
*
* @file xiicps_sinit.c
*
* The implementation of the XIicPs component's static initialization
* functionality.
*
* <pre>
* MODIFICATION HISTORY:
*
* Ver   Who    Date     Changes
* ----- ------ -------- --------------------------------------------
* 1.00a drg/jz 01/30/10 First release
* </pre>
*
******************************************************************************/

/***************************** Include Files *********************************/

#include "xstatus.h"
#include "xparameters.h"
#include "xiicps.h"

/************************** Constant Definitions *****************************/


/**************************** Type Definitions *******************************/

/***************** Macros (Inline Functions) Definitions *********************/


/************************** Function Prototypes ******************************/

/************************** Variable Definitions *****************************/
extern XIicPs_Config XIicPs_ConfigTable[];

/*****************************************************************************/
/**
*
* Looks up the device configuration based on the unique device ID. A table
* contains the configuration info for each device in the system.
*
* @param	DeviceId contains the ID of the device to look up the
*		configuration for.
*
* @return	A pointer to the configuration found or NULL if the specified
*		device ID was not found. See xiicps.h for the definition of
*		XIicPs_Config.
*
* @note		None.
*
******************************************************************************/
XIicPs_Config *XIicPs_LookupConfig(u16 DeviceId)
{
	XIicPs_Config *CfgPtr = NULL;
	int Index;

	for (Index = 0; Index < XPAR_XIICPS_NUM_INSTANCES; Index++) {
		if (XIicPs_ConfigTable[Index].DeviceId == DeviceId) {
			CfgPtr = &XIicPs_ConfigTable[Index];
			break;
		}
	}

	return CfgPtr;
}