2c8f92039d
Added initial support Xilinx Embedded Software. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
153 lines
5.1 KiB
C
Executable file
153 lines
5.1 KiB
C
Executable file
/******************************************************************************
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*
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* Copyright (C) 2007 - 2014 Xilinx, Inc. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* Use of the Software is limited solely to applications:
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* (a) running on a Xilinx device, or
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* (b) that interact with a Xilinx device through a bus or interconnect.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* XILINX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of the Xilinx shall not be used
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* in advertising or otherwise to promote the sale, use or other dealings in
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* this Software without prior written authorization from Xilinx.
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*
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******************************************************************************/
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/*****************************************************************************/
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/**
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*
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* @file xemaclite_sinit.c
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*
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* This file contains the implementation of the XEmacLite driver's static
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* initialization functionality.
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*
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* @note None.
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*
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* <pre>
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*
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* MODIFICATION HISTORY:
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*
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* Ver Who Date Changes
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* ----- ---- -------- -----------------------------------------------
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* 1.12a sv 11/28/07 First release
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*
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* </pre>
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*
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******************************************************************************/
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/***************************** Include Files *********************************/
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#include "xparameters.h"
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#include "xemaclite.h"
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/************************** Constant Definitions *****************************/
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/**************************** Type Definitions *******************************/
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/***************** Macros (Inline Functions) Definitions *********************/
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/************************** Function Prototypes ******************************/
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/************************** Variable Definitions *****************************/
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extern XEmacLite_Config XEmacLite_ConfigTable[];
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/*****************************************************************************/
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/**
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*
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* Lookup the device configuration based on the unique device ID. The table
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* XEmacLite_ConfigTable contains the configuration info for each device in the
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* system.
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*
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* @param DeviceId is the unique device ID of the device being looked up.
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*
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* @return A pointer to the configuration table entry corresponding to the
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* given device ID, or NULL if no match is found.
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*
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* @note None.
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*
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******************************************************************************/
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XEmacLite_Config *XEmacLite_LookupConfig(u16 DeviceId)
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{
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XEmacLite_Config *CfgPtr = NULL;
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u32 Index;
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for (Index = 0; Index < XPAR_XEMACLITE_NUM_INSTANCES; Index++) {
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if (XEmacLite_ConfigTable[Index].DeviceId == DeviceId) {
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CfgPtr = &XEmacLite_ConfigTable[Index];
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break;
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}
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}
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return CfgPtr;
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}
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/*****************************************************************************/
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/**
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*
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* Initialize a specific XEmacLite instance/driver. The initialization entails:
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* - Initialize fields of the XEmacLite instance structure.
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*
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* The driver defaults to polled mode operation.
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*
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* @param InstancePtr is a pointer to the XEmacLite instance.
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* @param DeviceId is the unique id of the device controlled by this
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* XEmacLite instance. Passing in a device id associates the
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* generic XEmacLite instance to a specific device, as chosen by
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* the caller or application developer.
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*
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* @return
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* - XST_SUCCESS if initialization was successful.
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* - XST_DEVICE_NOT_FOUND/XST_FAILURE if device configuration
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* information was not found for a device with the supplied
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* device ID.
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*
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* @note None
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*
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******************************************************************************/
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int XEmacLite_Initialize(XEmacLite *InstancePtr, u16 DeviceId)
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{
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int Status;
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XEmacLite_Config *EmacLiteConfigPtr;/* Pointer to Configuration data. */
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/*
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* Verify that each of the inputs are valid.
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*/
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Xil_AssertNonvoid(InstancePtr != NULL);
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/*
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* Lookup the device configuration in the configuration table. Use this
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* configuration info down below when initializing this driver.
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*/
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EmacLiteConfigPtr = XEmacLite_LookupConfig(DeviceId);
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if (EmacLiteConfigPtr == NULL) {
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return XST_DEVICE_NOT_FOUND;
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}
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Status = XEmacLite_CfgInitialize(InstancePtr,
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EmacLiteConfigPtr,
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EmacLiteConfigPtr->BaseAddress);
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if (Status != XST_SUCCESS) {
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return XST_FAILURE;
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}
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return XST_SUCCESS;
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}
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