2c8f92039d
Added initial support Xilinx Embedded Software. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
154 lines
4.8 KiB
C
Executable file
154 lines
4.8 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 xhwicap_selftest.c
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*
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* This file contains a diagnostic self test function for the XHwIcap driver.
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* The self test functions writes to the Interrupt Enable Register and reads it
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* back for comparison.
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*
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* See xhwicap.h for more information.
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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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* 1.00a sv 09/17/07 First release
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* 4.00a hvm 12/1/09 Updated with HAL phase 1 modifications
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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 "xhwicap.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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/************************** Variable Definitions ****************************/
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/************************** Function Prototypes *****************************/
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/*****************************************************************************/
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/**
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*
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* Run a self-test on the driver/device. The test
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* - Writes to the Interrupt Enable Register and reads it back
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* for comparison.
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*
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* @param InstancePtr is a pointer to the XHwIcap instance.
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*
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* @return
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* - XST_SUCCESS if the value read from the register
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* is the same as the value written.
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* - XST_FAILURE otherwise
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*
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* @note None.
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*
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******************************************************************************/
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int XHwIcap_SelfTest(XHwIcap *InstancePtr)
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{
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int Status = XST_SUCCESS;
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u32 IeRegister;
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u32 DgieRegister;
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/*
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* Assert the argument
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*/
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Xil_AssertNonvoid(InstancePtr != NULL);
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Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
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/*
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* Save a copy of the Global Interrupt Enable Register and Interrupt
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* Enable Register before writing them so that they can be restored.
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*/
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DgieRegister = XHwIcap_ReadReg(InstancePtr->HwIcapConfig.BaseAddress,
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XHI_GIER_OFFSET);
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IeRegister = XHwIcap_IntrGetEnabled(InstancePtr);
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/*
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* Disable the Global Interrupt
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*/
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XHwIcap_IntrGlobalDisable(InstancePtr);
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/*
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* Disable/Enable the interrupts and then verify that the register
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* is read back correct.
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*/
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XHwIcap_IntrDisable(InstancePtr, XHI_IPIXR_ALL_MASK);
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if (XHwIcap_IntrGetEnabled(InstancePtr) != 0x0) {
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Status = XST_FAILURE;
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}
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XHwIcap_IntrEnable(InstancePtr, (XHI_IPIXR_WEMPTY_MASK |
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XHI_IPIXR_RDP_MASK));
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if (XHwIcap_IntrGetEnabled(InstancePtr) !=
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(XHI_IPIXR_WEMPTY_MASK | XHI_IPIXR_RDP_MASK)) {
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Status |= XST_FAILURE;
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}
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/*
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* Restore the Interrupt Enable Register to the value before the
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* test.
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*/
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XHwIcap_IntrDisable(InstancePtr, XHI_IPIXR_ALL_MASK);
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if (IeRegister != 0) {
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XHwIcap_IntrEnable(InstancePtr, IeRegister);
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}
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/*
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* Restore the Global Interrupt Enable Register to the value
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* before the test.
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*/
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XHwIcap_WriteReg(InstancePtr->HwIcapConfig.BaseAddress,
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XHI_GIER_OFFSET, DgieRegister);
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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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