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/*****************************************************************************/
/**
*
* @file intg_codecoverage_test.c
*
* This file contains the design example for using NAND driver (XNandPsu).
* This example scans the Bbt on the flash. If found returns success else
* Creates a new BBT and writes it on the flash.
*
* @note None.
*
*
* <pre>
*
* MODIFICATION HISTORY:
*
* Ver   Who    Date	 Changes
* ----- -----  -------- -----------------------------------------------
* 1.0   sb    12/18/2014 First release
*
*
* </pre>
*
******************************************************************************/

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

#include "intg.h"

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

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

/***************** Macros (Inline Functions) Definitions ********************/
#define EXPECTED_FAILURES	2
#define RANDOM_DEVICEID		1U
/************************** Variable Definitions ****************************/

/************************** Function Prototypes *****************************/
s32 CodeCoverage_Test(XNandPsu *NandInstPtr);
/************************** Function Definitions ****************************/

/****************************************************************************/
/**
*
* Entry point to call the Code Coverage test.
*
* @param	NandInstPtr - Instance to the nand driver.
* @param	TestLoops - Number of tests to execute.
*
* @return   Number of test failures.
*
* @note	 None.
*
*****************************************************************************/
int Intg_CodeCoverageTest(XNandPsu *NandInstPtr, int TestLoops)
{

	s32 Status = XST_FAILURE;
	CT_TestReset("Module Code Coverage test");

	while(TestLoops--) {
		Status = CodeCoverage_Test(NandInstPtr);
		if (Status != XST_SUCCESS) {
			CT_LOG_FAILURE("Code Coverage Test Failed\r\n");
			break;
		}
		CT_NotifyNextPass();
	}

	return(CT_GetTestFailures());
}

/****************************************************************************/
/**
*
* This function runs a test on the NAND flash device using the basic driver
* functions in polled mode.
* The function does the following tasks:
* 	- Performs Code Coverage for
* 		-XNandPsu_WriteSpareBytes
* 		-XNandPsu_LookupConfig
*
* @param	NandInstPtr - Instance to the nand driver.
*
* @return
*
* @note
*		None
*
****************************************************************************/
s32 CodeCoverage_Test(XNandPsu *NandInstPtr)
{
	s32 Status = XST_FAILURE;
	XNandPsu_Config *StatusPtr = NULL;
	u32 Index;
	u64 Offset;
	u16 Length;
	s32 Failures = 0;

	Offset = (u64)(TEST_PAGE_START * NandInstPtr->Geometry.PagesPerBlock);
	Length = NandInstPtr->Geometry.BytesPerPage;

	/*
	 * Initialize the write buffer
	 */
	for (Index = 0; Index < Length;Index++) {
		WriteBuffer[Index] = (u8) (rand() % 256);
	}

	/*
	 * Altering Ecc Address for covering code in
	 * XNandPsu_WriteSpareBytes API
	 */
	NandInstPtr->EccCfg.EccAddr -= 8U;

	/*
	 * Enabling DMA Mode
	 */
	XNandPsu_EnableDmaMode(NandInstPtr);
	/*
	 * Write to flash Spare Bytes Section
	 */
	Status = XNandPsu_WriteSpareBytes(NandInstPtr, (u32)Offset,
			&WriteBuffer[0]);
	if (Status != XST_SUCCESS) {
		Failures++;
	}
	/*
	 * Reverting the Ecc Address back to original.
	 */
	NandInstPtr->EccCfg.EccAddr += 8U;

	/*
	 * Code Coverage for LookUp Config API
	 */
	StatusPtr = XNandPsu_LookupConfig(RANDOM_DEVICEID);
	if (StatusPtr == NULL){
		Failures++;
	}

	if(Failures == EXPECTED_FAILURES){
		Status = XST_SUCCESS;
	}

	return Status;
}