i28fxxxj3.c

inter Nor Flash 驱动

/*************************************************************************
 *** Intel Confidential                                      
 *** Copyright (C) Intel Corporation 2000                 
 *** All Rights Reserved.                                    
 *** --------------------------------------------------------------------
 ***
 *** Project Name: Flash Templates
 ***
 *** Module Name: Device
 ***
 *** File: Device.C - J3 device specific template source file
 ***
 *** File Revision: $Revision: #4 $, $JustDate:  5/11/00 $, $Author: kenji.konaka $
 ***
 *** Purpose:
 ***
 ***    The purpose of this file is to implement the J3 device specific
 ***    functionality for the J3 template package.  This module
 ***    implements only those functions which have J3 device specific
 ***    implementations.  The remaining functions which complete
 ***    the template application programmers interface are implemented
 ***    by the template.c source module.
 ***
 *** $NoKeywords: $
 *************************************************************************/
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/* Page Break  */
/* Include Files */
#include "../COMMON/TEMPLATE.H"

/*
 * Global Functions
 */ 


/****************************************************************************
 *
 * TMPL_EraseAllBlocks
 *
 * Description:   
 *
 *    This procedure is called to erase all data blocks on the flash 
 *    device.  See the flash device datasheet for specific details on
 *    the block erase command.
 *
 * Parameters:
 *
 *    IN      returnSR - flag to indicate whether the device status register
 *                       value should be returned by this function.
 *
 * Returns:   
 *
 *    TMPL_Status - includes function return status defined by enum
 *                  TMPL_CommandStat and optionally the flash device
 *                  status register value.
 *
 * Assumptions:
 *
 *    NONE
 *
 ***************************************************************************/
TMPL_Status TMPL_EraseAllBlocks ( UINT8 returnSR )
{

	TMPL_Status stat;
	UINT16 block;

	for ( block=0; block < TMPL_TOTAL_NUMBLOCKS; block++ )
	{
		stat = TMPL_EraseBlock( block, returnSR );

		if ( stat.Result != StatCompleted )
		{
			return( stat );
		}
	}

	return( stat );

}



unsigned int J3GetFlashSize( void )
{
    return TMPL_TOTAL_SIZE;
}


/****************************************************************************
 *
 * TMPL_EraseSuspend
 *
 * Description:   
 *
 *    This procedure is called to issue the erase suspend command to
 *    the flash device.  See the flash device datasheet for specific details 
 *    on this command.
 *
 * Parameters:
 *
 *    IN      blocknum - the block number on the device.
 *
 *    IN      returnSR - flag to indicate whether the device status register
 *                       value should be returned by this function.
 *
 * Returns:   
 *
 *    TMPL_Status - includes function return status defined by enum 
 *                  TMPL_CommandStat and optionally the flash device 
 *                  status register value.
 *
 * Assumptions:
 *
 *    When this function is called the device is currently in the erase 
 *    mode for the block identified.
 *
 ***************************************************************************/
TMPL_Status TMPL_EraseSuspend ( UINT16 blocknum, 
                                UINT8  returnSR )
{

	TMPL_Status stat;
	UINT32      blockaddr;
//	TMPL_FDATA  status;

	stat = TMPL_GetBlockAddress( blocknum, &blockaddr );

	if ( stat.Result != StatCompleted )
	{
		return( stat );
	}

	if ( returnSR )
	{
		TMPL_ClearStatus();
	}

	TMPL_WriteF( blockaddr, TMPL_BLOCK_SUSPEND );

	if ( !TMPL_WaitUntilReady( TMPL_PROGRAM_TIMEOUT ) )
	{
		stat.Result = StatTimeout;
	}
	else
	{
		stat.Result = StatCompleted;
	}

	if ( returnSR )
	{
		stat.SR = TMPL_ReadStatus();
	}

	/* return device to read array mode */
	TMPL_WriteF( TMPL_BASE_FLASH_ADDRESS, TMPL_READ_ARRAY );

	return( stat );
   
}


#if X_16
/****************************************************************************
 *
 * TMPL_ExtendedQuery
 *
 * Description:   
 *
 *    This procedure is called to retrieve the extended query
 *    data from the flash device.  See the flash device datasheet for
 *    specific details on this command.
 *
 * Parameters:
 *
 *    OUT      *extquery - pointer to extended query structure
 *
 * Returns:   
 *
 *    TMPL_Status - includes function return status defined by enum 
 *                  TMPL_CommandStat
 *
 * Assumptions:
 *
 *    NONE
 ***************************************************************************/
TMPL_Status TMPL_ExtendedQuery ( struct TMPL_ExtQueryData *extquery )
{

	TMPL_Status           stat;
	struct TMPL_QueryData query;
	TMPL_FDATA            item;
	UINT32                addr;
	UINT32                longitem;
	UINT32                i;
	UINT32                offset;

	stat = TMPL_Query( &query );

	if ( stat.Result != StatCompleted )
	{
		return( stat );
	}

	offset = query.ExtTablePtr;

	TMPL_WriteF( TMPL_BASE_FLASH_ADDRESS, TMPL_READ_QUERY );

	/* read extended query string */ 
	for ( i=0; i < 3; i++ )
	{
		stat = TMPL_GetQueryAddress( offset, &addr );

		if ( stat.Result != StatCompleted )
		{
			return( stat );
		}

		TMPL_ReadF( addr, &item );
		item &= 0xff;
		extquery->ExtQueryStr[i] = (char)item;
		offset++;
	}
	extquery->ExtQueryStr[3] = '\0'; /* null terminate string */

	/* read major version number */
	stat = TMPL_GetQueryAddress( offset, &addr );

	if ( stat.Result != StatCompleted )
	{
		return( stat );
	}

	TMPL_ReadF( addr, &item );
	item &= 0xff;
	extquery->MajorVersionNum = (UINT8)item;
	offset++;

	/* read minor version number */
	stat = TMPL_GetQueryAddress( offset, &addr );

	if ( stat.Result != StatCompleted )
	{
		return( stat );
	}

	TMPL_ReadF( addr, &item );
	item &= 0xff;
	extquery->MinorVersionNum = (UINT8)item;
	offset++;

	extquery->OptionalFeature = 0;
	for ( i=0; i < 4; i++ )
	{
		stat = TMPL_GetQueryAddress( offset, &addr );

		if ( stat.Result != StatCompleted )
		{
			return( stat );
		}

		TMPL_ReadF( addr, &item );
		item &= 0xff;
		longitem = (UINT32)((UINT32)item << (8*i));
		extquery->OptionalFeature = (UINT32)( extquery->OptionalFeature | longitem );
		offset++;
	}

	/* read after suspend functions */
	stat = TMPL_GetQueryAddress( offset, &addr );

	if ( stat.Result != StatCompleted )
	{
		return( stat );
	}

	TMPL_ReadF( addr, &item );
	item &= 0xff;
	extquery->AfterSuspendFunctions = (UINT8)item;
	offset++;

	/* read vendor id */
	extquery->BlockLockStatus = 0;
	for ( i=0; i < 2; i++ )
	{
		stat = TMPL_GetQueryAddress( offset, &addr );

		if ( stat.Result != StatCompleted )
		{
			return( stat );
		}

		TMPL_ReadF( addr, &item );
		item &= 0xff;
		item = item << (8*i);
		extquery->BlockLockStatus = (UINT16)( extquery->BlockLockStatus | item );
		offset++;
	}

	/* read vcc optimum */
	stat = TMPL_GetQueryAddress( offset, &addr );

	if ( stat.Result != StatCompleted )
	{
		return( stat );
	}

	TMPL_ReadF( addr, &item );
	item &= 0xff;
	extquery->VccOptimum = (UINT8)item;
	offset++;

	/* read vpp optimum */
	stat = TMPL_GetQueryAddress( offset, &addr );

	if ( stat.Result != StatCompleted )
	{
		return( stat );
	}

	TMPL_ReadF( addr, &item );
	item &= 0xff;
	extquery->VppOptimum = (UINT8)item;
	offset++;

	stat.Result = StatCompleted;

	/* return device to read array mode */
	TMPL_WriteF( TMPL_BASE_FLASH_ADDRESS, TMPL_READ_ARRAY );

	return( stat );

}
#endif /* X_16 */


/****************************************************************************
 *
 * TMPL_GetBlockAddress
 *
 * Description:   
 *
 *    This procedure is called to get the flash starting address for the
 *    specified block number.
 *
 * Parameters:
 *
 *    IN      blocknum - the block number on the device.
 *
 *    OUT     address  - the starting flash address for the specified
 *                       block.
 *
 * Returns:   
 *
 *    TMPL_Status - includes function return status defined by enum 
 *                  TMPL_CommandStat.
 *
 * Assumptions:
 *
 *    NONE