/*******************************************************************************
Copyright (C) Marvell International Ltd. and its affiliates

This software file (the "File") is owned and distributed by Marvell
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File under one of the following license alternatives, please (i) delete this
introductory statement regarding license alternatives, (ii) delete the two
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********************************************************************************
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to you under the terms of the applicable Commercial License.

********************************************************************************
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THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE IMPLIED
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********************************************************************************
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Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

    *   Redistributions of source code must retain the above copyright notice,
	    this list of conditions and the following disclaimer.

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        notice, this list of conditions and the following disclaimer in the
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*******************************************************************************/
#include "mflash/mvSMFlash.h"
#include "mflash/mvSMFlashSpec.h"
#include "mflash/mvMFlash.h"
#include "mflash/mvMFlashSpec.h"
#include "spi/mvSpi.h"
#include "spi/mvSpiCmnd.h"
#include "ctrlEnv/mvCtrlEnvLib.h"

/*#define MV_DEBUG*/
#ifdef MV_DEBUG
#define DB(x) x
#else
#define DB(x)
#endif

/* Static Functions */
static MV_STATUS mvSingleByteCmnd     (MV_U8 opcode);
static MV_STATUS mvSingleByteRead     (MV_U8 opcode, MV_U8* pData);
static MV_STATUS mvSingleByteWrite    (MV_U8 opcode, MV_U8 data);
static MV_STATUS mvWriteEnable        (MV_VOID);
static MV_STATUS mvStatusRegGet       (MV_U8* pStatus);
static MV_STATUS mvWaitOnWipClear     (MV_VOID);

/*******************************************************************************
* mvSingleByteCmnd - Issue an 8bit commmand
*
* DESCRIPTION:
*       serialize an 8bit command without any data
*
********************************************************************************/
static MV_STATUS mvSingleByteCmnd(MV_U8 opcode)
{
	MV_U8 cmd[1];
	cmd[0] = opcode;
	return mvSpiWriteThenRead(cmd, 1, NULL, 0,0);
}

/*******************************************************************************
* mvSingleByteCmnd - Issue an 8bit Read
*
* DESCRIPTION:
*       serialize an 8bit command and read 8bits of data
*
********************************************************************************/
static MV_STATUS mvSingleByteRead(MV_U8 opcode, MV_U8* pData)
{
	MV_U8 cmd[1];
	cmd[0] = opcode;
	return mvSpiWriteThenRead(cmd, 1, pData, 1,0);
}

/*******************************************************************************
* mvSingleByteWrite - Issue an 8bit Write
*
* DESCRIPTION:
*       serialize an 8bit command and 8bits of data
*
********************************************************************************/
static MV_STATUS mvSingleByteWrite(MV_U8 opcode, MV_U8 data)
{
	return mvSpiWriteThenWrite(&opcode, 1, &data, 1);
}

/*******************************************************************************
* mvWriteEnable - Perform the write enable sequence
*
* DESCRIPTION:
*       Writa enable sequence needed before program and erase commands
*
********************************************************************************/
static MV_STATUS mvWriteEnable(MV_VOID)
{
	return mvSingleByteCmnd(MV_SMFLASH_WREN_CMND_OPCD);
}

/*******************************************************************************
* mvStatusRegGet - Retreiv the value of the status register
*
* DESCRIPTION:
*       perform the RDSR sequence to get the 8bit status register
*
********************************************************************************/
static MV_STATUS mvStatusRegGet(MV_U8* pStatus)
{
	return mvSingleByteRead(MV_SMFLASH_RDSR_CMND_OPCD, pStatus);
}

/*******************************************************************************
* mvWaitOnWipClear - Block waiting for the WIP (write in progress) to be cleared
*
* DESCRIPTION:
*       Block waiting for the WIP (write in progress) to be cleared
*
********************************************************************************/
static MV_STATUS mvWaitOnWipClear(MV_VOID)
{
    MV_STATUS ret;
	MV_U32 i;
	MV_U8 status;

	for (i=0; i<MV_MFLASH_MAX_PRG_LOOP; i++)
	{
		/* Read the status register */
		if ((ret = mvStatusRegGet(&status)) != MV_OK)
			return ret;

		/* check if write in progress bit was cleared by h/w */
		if ((status & MV_SMFLASH_STATUS_REG_WIP_MASK) == 0)
			return MV_OK;
	}

    DB(mvOsPrintf("%s WARNING: Wait Timeout!\n", __FUNCTION__);)
	return MV_TIMEOUT;
}

/*
#####################################################################################
#####################################################################################
*/

/*******************************************************************************
* mvSMFlashInit - Initialize the Marvell serial flash device
*
* DESCRIPTION:
*       Perform the neccessary initialization and configuration
*
* INPUT:
*       flinfo: Flash information structure
*
* OUTPUT:
*       None.
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSMFlashInit (MV_MFLASH_INFO *pFlash)
{
    /* Check for null pointer */
    if (pFlash == NULL)
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }

	return MV_OK;
}

/*******************************************************************************
* mvSMFlashChipErase - Erase the whole chip
*
* DESCRIPTION:
*       Perform the chip erase sequence. To set both the Main and information
*		regions to logic ones.
*
* INPUT:
*       pFlash: Flash information structure
*
* OUTPUT:
*       None.
*
* RETURN:
*       Success or Error code.
*
*******************************************************************************/
MV_STATUS mvSMFlashChipErase (MV_MFLASH_INFO *pFlash)
{
	MV_STATUS ret = MV_OK;

    /* Check for null pointer */
    if (pFlash == NULL)
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }

	/* Perform the write enable sequence */
	if ((ret = mvWriteEnable()) != MV_OK)
		return ret;

	if ((ret = mvSingleByteCmnd(MV_SMFLASH_CHIP_ERASE_CMND_OPCD)) != MV_OK)
		return ret;

	/* wait for the write in progress bit to be cleared in the status register */
	if ((ret = mvWaitOnWipClear()) != MV_OK)
		return ret;

	return ret;
}

/*******************************************************************************
* mvSMFlashMainErase - Erase the Main flash region only
*
* DESCRIPTION:
*       Erase the main flash region to ones. Information region will not be
*		affected.
*
* INPUT:
*       pFlash: Flash information structure
*
* OUTPUT:
*       None.
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSMFlashMainErase (MV_MFLASH_INFO *pFlash)
{
	MV_STATUS ret = MV_OK;

    /* Check for null pointer */
    if (pFlash == NULL)
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }

	/* Perform the write enable sequence */
	if ((ret = mvWriteEnable()) != MV_OK)
		return ret;

	if ((ret = mvSingleByteCmnd(MV_SMFLASH_MAIN_ERASE_CMND_OPCD)) != MV_OK)
		return ret;

	/* wait for the write in progress bit to be cleared in the status register */
	if ((ret = mvWaitOnWipClear()) != MV_OK)
		return ret;

	return ret;
}

/*******************************************************************************
* mvSMFlashInfErase - Erase the whole information region only
*
* DESCRIPTION:
*       Erase the whole information region without affecting the Main region.
*
* INPUT:
*       pFlash: Flash information structure
*
* OUTPUT:
*       None.
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSMFlashInfErase (MV_MFLASH_INFO *pFlash)
{
	MV_STATUS ret = MV_OK;

    /* Check for null pointer */
    if (pFlash == NULL)
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }

	/* Perform the write enable sequence */
	if ((ret = mvWriteEnable()) != MV_OK)
		return ret;

	if ((ret = mvSingleByteCmnd(MV_SMFLASH_IPG_ERASE_CMND_OPCD)) != MV_OK)
		return ret;

	/* wait for the write in progress bit to be cleared in the status register */
	if ((ret = mvWaitOnWipClear()) != MV_OK)
		return ret;

	return ret;
}

/*******************************************************************************
* mvSMFlashSecErase - Erase a single sector of the Main region
*
* DESCRIPTION:
*       Perform the sequence to erase a Main region sector
*
* INPUT:
*       pFlash: Flash information structure
*		secNumber: sector number to erase.
*
* OUTPUT:
*       None.
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSMFlashSecErase (MV_MFLASH_INFO *pFlash, MV_U32 secAddr)
{
	MV_STATUS ret;
	MV_U8 cmd[MV_SMFLASH_PAGE_ERASE_CMND_LEN];

    /* Check for null pointer */
    if (pFlash == NULL)
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }

	cmd[0] = MV_SMFLASH_PAGE_ERASE_CMND_OPCD;
	cmd[1] = ((secAddr >> 16) & 0xFF);		/* address bits 16 - 23 */
	cmd[2] = ((secAddr >> 8) & 0xFF);		/* address bits 8 - 15 */
	cmd[3] = (secAddr & 0xFF);				/* address bits 0 - 7 */

	/* Perform the write enable sequence */
	if ((ret = mvWriteEnable()) != MV_OK)
		return ret;

	if ((ret = mvSpiWriteThenRead(cmd, MV_SMFLASH_PAGE_ERASE_CMND_LEN, NULL, 0, 0)) != MV_OK)
		return ret;

	/* wait for the write in progress bit to be cleared in the status register */
	if ((ret = mvWaitOnWipClear()) != MV_OK)
		return ret;

	return ret;
}


/*******************************************************************************
* mvSMFlash64bWr - Program 64 bytes of Data alligned to 64 boundaries
*
* DESCRIPTION:
*       Program to main region 64 bytes of Data alligned to 64 boundaries
*
* INPUT:
*       pFlash: Flash information structure
*		offset: address to start the programming from (alligned to 64 bytes)
*		pBlock: pointer to the 64 bytes to program
*
* OUTPUT:
*       None.
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSMFlash64bWr(MV_MFLASH_INFO *pFlash, MV_U32 offset, MV_U8 *pBlock)
{
	MV_STATUS ret;
	MV_U8 cmd[MV_SMFLASH_PRGRM_CMND_LEN];

    /* Check for null pointer */
#ifndef CONFIG_MARVELL
    if(NULL == pBlock)
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }
#endif

    if (pFlash == NULL)
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }

	/* check allignment */
	if (offset & MV_SMFLASH_PAGE_ALLIGN_MASK)
    {
        DB(mvOsPrintf("%s WARNING: Allignment error!\n", __FUNCTION__);)
		return MV_BAD_PARAM;
    }

	/* encode the command to send */
	cmd[0] = MV_SMFLASH_PRGRM_CMND_OPCD;
	cmd[1] = ((offset >> 16) & 0xFF);
	cmd[2] = ((offset >> 8) & 0xFF);
	cmd[3] = (offset & 0xFF);

	/* Perform the write enable sequence */
	if ((ret = mvWriteEnable()) != MV_OK)
		return ret;

	/* serialize the command and then followed by the data to program */
	if ((ret = mvSpiWriteThenWrite(cmd, MV_SMFLASH_PRGRM_CMND_LEN, pBlock, MV_SMFLASH_PAGE_SIZE)) != MV_OK)
		return ret;

	/* wait for the write in progress bit to be cleared in the status register */
	if ((ret = mvWaitOnWipClear()) != MV_OK)
		return ret;

	return MV_OK;
}

/*******************************************************************************
* mvSMFlash64bWrVerify - Program and verify 64 bytes of Data alligned to
*						 64 bytes boundaries
*
* DESCRIPTION:
*       Program and verifyto main region 64 bytes of Data alligned to 64
*		bytes boundaries
*
* INPUT:
*       pFlash: Flash information structure
*		offset: address to start the programming from (alligned to 64 bytes)
*		pBlock: pointer to the 64 bytes to program
*
* OUTPUT:
*       None.
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSMFlash64bWrVerify(MV_MFLASH_INFO *pFlash, MV_U32 offset, MV_U8 *pBlock)
{
	MV_STATUS ret;
	MV_U8 cmd[MV_SMFLASH_PRGRM_CMP_CMND_LEN];
    MV_U8 status;

    /* Check for null pointer */
    if ((pFlash == NULL) || (pBlock == NULL))
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }

	/* check allignment */
	if (offset & MV_SMFLASH_PAGE_ALLIGN_MASK)
    {
        DB(mvOsPrintf("%s WARNING: Allignment error!\n", __FUNCTION__);)
		return MV_BAD_PARAM;
    }

	/* encode the command to send */
	cmd[0] = MV_SMFLASH_PRGRM_CMP_CMND_OPCD;
	cmd[1] = ((offset >> 16) & 0xFF);
	cmd[2] = ((offset >> 8) & 0xFF);
	cmd[3] = (offset & 0xFF);

	/* Perform the write enable sequence */
	if ((ret = mvWriteEnable()) != MV_OK)
		return ret;

	/* serialize the command and then followed by the data to program */
	if ((ret = mvSpiWriteThenWrite(cmd, MV_SMFLASH_PRGRM_CMP_CMND_LEN, pBlock, MV_SMFLASH_PAGE_SIZE)) != MV_OK)
		return ret;

	/* wait for the write in progress bit to be cleared in the status register */
	if ((ret = mvWaitOnWipClear()) != MV_OK)
		return ret;

	/* Read the status register */
	if ((ret = mvStatusRegGet(&status)) != MV_OK)
		return ret;

	/* check if result of the compare operartion */
	if (status & MV_SMFLASH_STATUS_REG_CMP_MASK)
    {
        DB(mvOsPrintf("%s WARNING: Compare after write error!\n", __FUNCTION__);)
		return MV_FAIL;
    }

	return MV_OK;
}

/*******************************************************************************
* mvSMFlash64bInfWr - Information region program 64 bytes of Data alligned
*					  to 64 bytes boundaries
*
* DESCRIPTION:
*       Program to information region 64 bytes of Data alligned to 64 boundaries
*
* INPUT:
*       pFlash: Flash information structure
*		offset: address to start the programming from (alligned to 64 bytes)
*		pBlock: pointer to the 64 bytes to program
*
* OUTPUT:
*       None.
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSMFlash64bInfWr(MV_MFLASH_INFO *pFlash, MV_U32 offset, MV_U8 *pBlock)
{
	MV_STATUS ret;
	MV_U8 cmd[MV_SMFLASH_IPRGRM_CMND_LEN];

    /* Check for null pointer */
    if ((pFlash == NULL) || (pBlock == NULL))
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }

	/* check allignment */
	if (offset & MV_SMFLASH_PAGE_ALLIGN_MASK)
    {
        DB(mvOsPrintf("%s WARNING: Allignment error!\n", __FUNCTION__);)
		return MV_BAD_PARAM;
    }

	/* encode the command to send */
	cmd[0] = MV_SMFLASH_IPRGRM_CMND_OPCD;
	cmd[1] = ((offset >> 16) & 0xFF);
	cmd[2] = ((offset >> 8) & 0xFF);
	cmd[3] = (offset & 0xFF);

	/* Perform the write enable sequence */
	if ((ret = mvWriteEnable()) != MV_OK)
		return ret;

	/* serialize the command and then followed by the data to program */
	if ((ret = mvSpiWriteThenWrite(cmd, MV_SMFLASH_IPRGRM_CMND_LEN, pBlock, MV_SMFLASH_PAGE_SIZE)) != MV_OK)
		return ret;

	/* wait for the write in progress bit to be cleared in the status register */
	if ((ret = mvWaitOnWipClear()) != MV_OK)
		return ret;

	return MV_OK;
}

/*******************************************************************************
* mvSMFlash64bInfWrVerify - Program and verify 64 bytes of Data ti the
*							information region alligned to 64 boundaries
*
* DESCRIPTION:
*       Program and then verify to the information region 64 bytes of Data
*		alligned to 64 boundaries
*
* INPUT:
*       pFlash: Flash information structure
*		offset: address to start the programming from (alligned to 64 bytes)
*		pBlock: pointer to the 64 bytes to program
*
* OUTPUT:
*       None.
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSMFlash64bInfWrVerify(MV_MFLASH_INFO *pFlash, MV_U32 offset, MV_U8 *pBlock)
{
	MV_STATUS ret;
	MV_U8 cmd[MV_SMFLASH_IPRGRM_CMP_CMND_LEN];
    MV_U8 status;

    /* Check for null pointer */
    if ((pFlash == NULL) || (pBlock == NULL))
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }

	/* check allignment */
	if (offset & MV_SMFLASH_PAGE_ALLIGN_MASK)
    {
        DB(mvOsPrintf("%s WARNING: Allignment error!\n", __FUNCTION__);)
		return MV_BAD_PARAM;
    }

	/* encode the command to send */
	cmd[0] = MV_SMFLASH_IPRGRM_CMP_CMND_OPCD;
	cmd[1] = ((offset >> 16) & 0xFF);
	cmd[2] = ((offset >> 8) & 0xFF);
	cmd[3] = (offset & 0xFF);

	/* Perform the write enable sequence */
	if ((ret = mvWriteEnable()) != MV_OK)
		return ret;

	/* serialize the command and then followed by the data to program */
	if ((ret = mvSpiWriteThenWrite(cmd, MV_SMFLASH_IPRGRM_CMP_CMND_LEN, pBlock, MV_SMFLASH_PAGE_SIZE)) != MV_OK)
		return ret;

	/* wait for the write in progress bit to be cleared in the status register */
	if ((ret = mvWaitOnWipClear()) != MV_OK)
		return ret;

    /* Read the status register */
	if ((ret = mvStatusRegGet(&status)) != MV_OK)
		return ret;

	/* check if result of the compare operartion */
	if (status & MV_SMFLASH_STATUS_REG_CMP_MASK)
    {
        DB(mvOsPrintf("%s WARNING: Compare after information region write error!\n", __FUNCTION__);)
		return MV_FAIL;
    }

	return MV_OK;
}

/*******************************************************************************
* mvSMFlashBlockRd - Read from the main region into a buffer
*
* DESCRIPTION:
*       Issue the main region read sequence. Size and offset are not limited
*		except to the size of the flash.
*
* INPUT:
*       pFlash: Flash information structure
*		offset: address in the main region to start the reading from.
*		blockSize: size of the buffer to be read
*		pBlock: pointer to the buffer to hold the data read from the flash
*
* OUTPUT:
*		pBlock: pointer to the buffer holding the data from the flash
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSMFlashBlockRd(MV_MFLASH_INFO *pFlash, MV_U32 offset, MV_U32 blockSize,
						   MV_U8 *pBlock)
{
	MV_STATUS ret;
	MV_U8 cmd[MV_SMFLASH_READ_CMND_LEN];

    /* Check for null pointer */
    if ((pFlash == NULL) || (pBlock == NULL))
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }

	/* check that requested data is in the region */
    if ((offset + blockSize) > (pFlash->sectorNumber * pFlash->sectorSize))
    {
        DB(mvOsPrintf("%s WARNING: Read exceeds flash size!\n", __FUNCTION__);)
        return MV_BAD_PARAM;
    }

	/* encode the command to send */
	cmd[0] = MV_SMFLASH_READ_CMND_OPCD;
	cmd[1] = ((offset >> 16) & 0xFF);
	cmd[2] = ((offset >> 8) & 0xFF);
	cmd[3] = (offset & 0xFF);

	/* Perform the write enable sequence */
	if ((ret = mvWriteEnable()) != MV_OK)
		return ret;

	/* serialize the command and then followed by the data to program */
	if ((ret = mvSpiWriteThenRead(cmd, MV_SMFLASH_READ_CMND_LEN, pBlock, blockSize, 0)) != MV_OK)
		return ret;

	return MV_OK;
}

/*******************************************************************************
* mvSMFlashBlockInfRd - Read from the information region into a buffer
*
* DESCRIPTION:
*       Issue the information region read sequence. Size and offset are not
*		limited except to the size of the information region.
*
* INPUT:
*       pFlash: Flash information structure
*		offset: address in the information region to start the reading from.
*		blockSize: size of the buffer to be read
*		pBlock: pointer to the buffer to hold the data read from the flash
*
* OUTPUT:
*		pBlock: pointer to the buffer holding the data from the flash
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSMFlashBlockInfRd(MV_MFLASH_INFO *pFlash, MV_U32 offset, MV_U32 blockSize,
							  MV_U8 *pBlock)
{
	MV_STATUS ret;
	MV_U8 cmd[MV_SMFLASH_IREAD_CMND_LEN];

    /* Check for null pointer */
    if ((pFlash == NULL) || (pBlock == NULL))
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }

	/* check that requested data is in the region */
    if ((offset + blockSize) > pFlash->infoSize)
    {
        DB(mvOsPrintf("%s WARNING: Read exceeds information region size!\n", __FUNCTION__);)
		return MV_BAD_PARAM;
    }

	/* encode the command to send */
	cmd[0] = MV_SMFLASH_IREAD_CMND_OPCD;
	cmd[1] = ((offset >> 16) & 0xFF);
	cmd[2] = ((offset >> 8) & 0xFF);
	cmd[3] = (offset & 0xFF);

	/* Perform the write enable sequence */
	if ((ret = mvWriteEnable()) != MV_OK)
		return ret;

	/* serialize the command and then followed by the data to program */
	if ((ret = mvSpiWriteThenRead(cmd, MV_SMFLASH_IREAD_CMND_LEN, pBlock, blockSize, 0)) != MV_OK)
		return ret;

	return MV_OK;
}

/*******************************************************************************
* mvSMFlashReadConfig3 - Read the value of the configuration register
*
* DESCRIPTION:
*       Read the value of the configuration register #3
*
* INPUT:
*       pFlash: Flash information structure
*		configReg: pointer to the 8bit variable to read in the config register
*
* OUTPUT:
*		configReg: pointer to the 8bit varable holding the config register
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSMFlashReadConfig3(MV_MFLASH_INFO *pFlash, MV_U8 * pConfigReg)
{
    /* Check for null pointer */
    if ((pFlash == NULL) || (pConfigReg == NULL))
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }

	return mvSingleByteRead(MV_SMFLASH_READ_CFG_3_CMND_OPCD, pConfigReg);
}

/*******************************************************************************
* mvSMFlashReadConfig4 - Read the value of the configuration register
*
* DESCRIPTION:
*       Read the value of the configuration register #4
*
* INPUT:
*       pFlash: Flash information structure
*		configReg: pointer to the 8bit variable to read in the config register
*
* OUTPUT:
*		configReg: pointer to the 8bit varable holding the config register
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSMFlashReadConfig4(MV_MFLASH_INFO *pFlash, MV_U8 * pConfigReg)
{
    /* Check for null pointer */
    if ((pFlash == NULL) || (pConfigReg == NULL))
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }

	return mvSingleByteRead(MV_SMFLASH_READ_CFG_4_CMND_OPCD, pConfigReg);
}

/*******************************************************************************
* mvSMFlashSetConfig3 - Set the value of the configuration register
*
* DESCRIPTION:
*       Set the value of the configuration register #3
*
* INPUT:
*       pFlash: Flash information structure
*		configReg: 8bit variable to be written to the config register
*
* OUTPUT:
*		None.
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSMFlashSetConfig3(MV_MFLASH_INFO *pFlash, MV_U8 configReg)
{
    /* Check for null pointer */
    if (pFlash == NULL)
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }

	return mvSingleByteWrite(MV_SMFLASH_SET_CFG_3_CMND_OPCD, configReg);
}

/*******************************************************************************
* mvSMFlashSetConfig4 - Set the value of the configuration register
*
* DESCRIPTION:
*       Set the value of the configuration register #4
*
* INPUT:
*       pFlash: Flash information structure
*		configReg: 8bit variable to be written to the config register
*
* OUTPUT:
*		None.
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSMFlashSetConfig4(MV_MFLASH_INFO *pFlash, MV_U8 configReg)
{
    /* Check for null pointer */
    if (pFlash == NULL)
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }

	return mvSingleByteWrite(MV_SMFLASH_SET_CFG_4_CMND_OPCD, configReg);
}

/*******************************************************************************
* mvSMFlashWriteProtectSet - Write protect the whole flash device
*
* DESCRIPTION:
*       Enable/Disable the write protection on the whole flash device.
*
* INPUT:
*       pFlash: Flash information structure
*		wp: enable/disable (MV_TRUE/MV_FALSE) write protection
*
* OUTPUT:
*		None
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSMFlashWriteProtectSet(MV_MFLASH_INFO *pFlash, MV_BOOL wp)
{
    MV_STATUS ret;
	MV_U8 reg;

    /* Check for null pointer */
    if (pFlash == NULL)
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }

	/* Read the serial configuration register #4 */
	if ((ret = mvSMFlashReadConfig4(pFlash, &reg)) != MV_OK)
		return ret;

	/* set the WP bit according to the wp input */
	if (wp)
		reg &= ~MV_SMFLASH_SRL_CFG4_WP_MASK;
	else
		reg |= MV_SMFLASH_SRL_CFG4_WP_MASK;

	/* write back the serial configuration register #4 */
	if ((ret = mvSMFlashSetConfig4(pFlash, reg)) != MV_OK)
		return ret;

	return MV_OK;
}


/*******************************************************************************
* mvSMFlashSectorSizeSet - Set the sector size
*
* DESCRIPTION:
*       Set the sector size (4K or 32K)
*
* INPUT:
*       pFlash: Flash information structure
*		secSize: requested sector size
*
* OUTPUT:
*		None
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSMFlashSectorSizeSet(MV_MFLASH_INFO *pFlash, MV_U32 secSize)
{
    MV_STATUS ret;
	MV_U8 reg;

    /* Check for null pointer */
    if (pFlash == NULL)
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }

	/* Read the serial configuration register #4 */
	if ((ret = mvSMFlashReadConfig4(pFlash, &reg)) != MV_OK)
		return ret;

	/* set the PAGE4K bit according to the secSize input */
	switch (secSize)
	{
		case MV_MFLASH_SECTOR_SIZE_BIG:
			reg &= ~MV_SMFLASH_SRL_CFG4_PG_SIZE_MASK;	/* 32K sectors */
			break;

		case MV_MFLASH_SECTOR_SIZE_SMALL:
			reg |= MV_SMFLASH_SRL_CFG4_PG_SIZE_MASK;		/* 4K sectors */
			break;

		default:
            DB(mvOsPrintf("%s WARNING: Invalid parameter sector size!\n", __FUNCTION__);)
			return MV_BAD_PARAM;
	}

	/* write back the serial configuration register #4 */
	if ((ret = mvSMFlashSetConfig4(pFlash, reg)) != MV_OK)
		return ret;

	return MV_OK;
}

/*******************************************************************************
* mvSMFlashShutdownSet - Put the flash device in power save mode
*
* DESCRIPTION:
*       Put the flash device in power save mode
*
* INPUT:
*       pFlash: Flash information structure
*
* OUTPUT:
*		None
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSMFlashShutdownSet(MV_MFLASH_INFO *pFlash)
{
    /* Check for null pointer */
    if (pFlash == NULL)
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }

	return mvSingleByteCmnd(MV_SMFLASH_SHUTDOWN_CMND_OPCD);
}

/*******************************************************************************
* mvSMFlashIdGet - Retreive the Manufacturer ID and Device ID
*
* DESCRIPTION:
*       Read from the flash device the
*
* INPUT:
*       pFlash: Flash information structure
*
* OUTPUT:
*		None
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSMFlashIdGet(MV_MFLASH_INFO *pFlash, MV_U32 * pManfCode, MV_U16 * pDevCode)
{
	MV_STATUS ret = MV_OK;
	MV_U8 cmd[MV_SMFLASH_RDID_CMND_LEN];
	MV_U8 id[MV_SMFLASH_RDID_RPLY_LEN];

    /* Check for null pointer */
    if ((pFlash == NULL) || (pManfCode == NULL) || (pDevCode == NULL))
    {
        mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__);
        return MV_BAD_PARAM;
    }

	cmd[0] = MV_SMFLASH_RDID_CMND_OPCD;

	if ((ret = mvSpiWriteThenRead(cmd, MV_SMFLASH_RDID_CMND_LEN, id, MV_SMFLASH_RDID_RPLY_LEN, 0)) != MV_OK)
		return ret;

	*pManfCode = ((id[0] << 24) | (id[1] << 16) | (id[2] << 8) | (id[3]));
	*pDevCode = ((id[4] << 8) | (id[5]));

	return ret;
}