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/******************************************************************************
*
* Copyright (C) 2007 - 2014 Xilinx, Inc. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* Use of the Software is limited solely to applications:
* (a) running on a Xilinx device, or
* (b) that interact with a Xilinx device through a bus or interconnect.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* XILINX BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Except as contained in this notice, the name of the Xilinx shall not be used
* in advertising or otherwise to promote the sale, use or other dealings in
* this Software without prior written authorization from Xilinx.
*
******************************************************************************/
/*****************************************************************************/
/**
*
* @file xemaclite_sinit.c
*
* This file contains the implementation of the XEmacLite driver's static
* initialization functionality.
*
* @note None.
*
* <pre>
*
* MODIFICATION HISTORY:
*
* Ver Who Date Changes
* ----- ---- -------- -----------------------------------------------
* 1.12a sv 11/28/07 First release
*
* </pre>
*
******************************************************************************/
/***************************** Include Files *********************************/
#include "xparameters.h"
#include "xemaclite.h"
/************************** Constant Definitions *****************************/
/**************************** Type Definitions *******************************/
/***************** Macros (Inline Functions) Definitions *********************/
/************************** Function Prototypes ******************************/
/************************** Variable Definitions *****************************/
extern XEmacLite_Config XEmacLite_ConfigTable[];
/*****************************************************************************/
/**
*
* Lookup the device configuration based on the unique device ID. The table
* XEmacLite_ConfigTable contains the configuration info for each device in the
* system.
*
* @param DeviceId is the unique device ID of the device being looked up.
*
* @return A pointer to the configuration table entry corresponding to the
* given device ID, or NULL if no match is found.
*
* @note None.
*
******************************************************************************/
XEmacLite_Config *XEmacLite_LookupConfig(u16 DeviceId)
{
XEmacLite_Config *CfgPtr = NULL;
u32 Index;
for (Index = 0; Index < XPAR_XEMACLITE_NUM_INSTANCES; Index++) {
if (XEmacLite_ConfigTable[Index].DeviceId == DeviceId) {
CfgPtr = &XEmacLite_ConfigTable[Index];
break;
}
}
return CfgPtr;
}
/*****************************************************************************/
/**
*
* Initialize a specific XEmacLite instance/driver. The initialization entails:
* - Initialize fields of the XEmacLite instance structure.
*
* The driver defaults to polled mode operation.
*
* @param InstancePtr is a pointer to the XEmacLite instance.
* @param DeviceId is the unique id of the device controlled by this
* XEmacLite instance. Passing in a device id associates the
* generic XEmacLite instance to a specific device, as chosen by
* the caller or application developer.
*
* @return
* - XST_SUCCESS if initialization was successful.
* - XST_DEVICE_NOT_FOUND/XST_FAILURE if device configuration
* information was not found for a device with the supplied
* device ID.
*
* @note None
*
******************************************************************************/
int XEmacLite_Initialize(XEmacLite *InstancePtr, u16 DeviceId)
{
int Status;
XEmacLite_Config *EmacLiteConfigPtr;/* Pointer to Configuration data. */
/*
* Verify that each of the inputs are valid.
*/
Xil_AssertNonvoid(InstancePtr != NULL);
/*
* Lookup the device configuration in the configuration table. Use this
* configuration info down below when initializing this driver.
*/
EmacLiteConfigPtr = XEmacLite_LookupConfig(DeviceId);
if (EmacLiteConfigPtr == NULL) {
return XST_DEVICE_NOT_FOUND;
}
Status = XEmacLite_CfgInitialize(InstancePtr,
EmacLiteConfigPtr,
EmacLiteConfigPtr->BaseAddress);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
return XST_SUCCESS;
}
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