template.c

此源码包为intel J3系列NorFlash的驱动程序,支持8位,16位总线宽度

/*************************************************************************
 *** Intel Confidential                                      
 *** Copyright (C) Intel Corporation 2000                 
 *** All Rights Reserved.                                    
 *** --------------------------------------------------------------------
 ***
 *** Project Name: Flash Templates
 ***
 *** Module Name: Template
 ***
 *** File: Template.C - Common template C source file
 ***
 *** File Revision: $Revision: 9 $, $JustDate:  4/21/00 $, $Author: Tchuynh $
 ***
 *** Purpose:
 ***
 ***    The purpose of this file is to implement the common application 
 ***    programmers interface for flash template software.  This module
 ***    implements all flash template subroutines that do not have
 ***    a device specific implementation in the device.c module for
 ***    the supported device.  Macros are used to determine if
 ***    the template.c common implementation or the device.c specific
 ***    implementation is used by the template for each subroutine.
 ***
 ***    Note that some common template functions implemented in this
 ***    module will return STATUS_UNSUPPORTED since no common
 ***    implementation is possible due to the differences between 
 ***    supported devices for those functions.  The device.c module
 ***    must contain implementations for these particular functions
 ***    when the function is in fact supported for that device.
 ***
 *** $NoKeywords: $
 *************************************************************************/

/* Include Files */
#include "template.h"



#if !DEVICE_CLEAR_STATUS /* if there is no device.c implementation */
/****************************************************************************
 *
 * TMPL_ClearStatus
 *
 * Description:   
 *    This procedure is called to clear the status register on the flash
 *    device.  See the flash device datasheet for specific details on 
 *    this command.
 *
 * Parameters:
 *    NONE
 *
 * Returns:   
 *    NONE
 *
 * Assumptions:
 *    NONE
 *
 ***************************************************************************/
void TMPL_ClearStatus ( void )
{

   TMPL_WriteF( TMPL_BASE_FLASH_ADDRESS,  TMPL_CLEAR_STATUS_REGISTER );

}
#endif /* !DEVICE_CLEAR_STATUS */


#if !DEVICE_ERASE_BLOCK /* if there is no device.c implementation */
/****************************************************************************
 *
 * TMPL_EraseBlock
 *
 * Description:   
 *
 *    This procedure is called to erase a data block on 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:
 *
 *    NONE
 *
 ***************************************************************************/
TMPL_Status TMPL_EraseBlock ( UINT16 blocknum,
                              UINT8  returnSR )
{

   TMPL_Status   stat;
   UINT32 blockadd;
  
   stat = TMPL_GetBlockAddress( blocknum, &blockadd );

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

   if ( returnSR )
   {
      TMPL_ClearStatus();
   }

   TMPL_WriteF(blockadd, TMPL_BLOCK_ERASE);

   TMPL_WriteF(blockadd, TMPL_CONFIRM );

   if ( !TMPL_WaitUntilReady( TMPL_ERASE_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 );

}
#endif /* !DEVICE_ERASE_BLOCK */


#if !DEVICE_ERASE_ALL_BLOCKS /* if there is no device.c implementation */
/****************************************************************************
 *
 * 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;

   stat.Result = StatUnsupported;

   return( stat );
}
#endif /* !DEVICE_ERASE_ALL_BLOCKS */


#if !DEVICE_ERASE_SUSPEND /* if there is no device.c implementation */
/****************************************************************************
 *
 * 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;

   stat.Result = StatUnsupported;

   return( stat );
}
#endif /* !DEVICE_ERASE_SUSPEND */


#if !DEVICE_EXTENDED_QUERY
/****************************************************************************
 *
 * 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;

   stat.Result = StatUnsupported;

   return( stat );

}
#endif /* !DEVICE_EXTENDED_QUERY */


#if !DEVICE_GET_BLOCK_ADDRESS /* if there is no device.c implementation */
/****************************************************************************
 *
 * 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
 *
 ***************************************************************************/
TMPL_Status TMPL_GetBlockAddress ( UINT16     blocknum, 
                                   UINT32_PTR address )
{

   TMPL_Status stat;

   stat.Result = StatUnsupported;

   return( stat );
}
#endif /* !DEVICE_GET_BLOCK_ADDRESS */


#if !CLIENT_GET_FPTR /* if there is no client provided implementation */
/****************************************************************************
 *
 * TMPL_GetFptr
 *
 * Description:   
 *
 *    This procedure is called to return a flash ptr given a 
 *    specified device address.  This routine will likely need to be
 *    provided externally by the template client in order to properly
 *    deal with addressing details that are specific to the HW platform.
 *
 * Parameters:
 *
 *    IN      address  - the flash address 
 *
 * Returns:   
 *
 *    TMPL_FDATA_PTR  - address returned in ptr form
 *
 * Assumptions:
 *
 *    NONE
 *
 ***************************************************************************/
TMPL_FDATA_PTR  TMPL_GetFptr ( UINT32 address )
{
   return( (TMPL_FDATA_PTR)address );
}
#endif /* !CLIENT_GET_FPTR */


#if !DEVICE_GET_QUERY_ADDRESS /* if there is no device.c implementation */
/****************************************************************************
 *
 * TMPL_GetQueryAddress
 *
 * Description:   
 *
 *    This procedure is called to get the flash address for a given
 *    query offset.
 *
 *   Parameters:
 *
 *    IN      offset   - query offset location
 *
 *    OUT     address  - the flash address for the specified query
 *                       offset.
 *
 * Returns:   
 *
 *    TMPL_Status - includes function return status defined by enum
 *                  TMPL_CommandStat.
 *
 * Assumptions:
 *
 *    NONE
 *
 ***************************************************************************/
TMPL_Status TMPL_GetQueryAddress ( UINT32 offset, 
                                   UINT32_PTR address )
{
   TMPL_Status stat;

#if ( X_8 )
   *address = offset;
#elif ( X_16 )
   *address = offset << 1;
#elif( PX_16 || X_32 )
   *address = offset << 2;
#endif

   *address += TMPL_BASE_FLASH_ADDRESS;

   stat.Result = StatCompleted;

   return( stat );
}
#endif /* !DEVICE_GET_QUERY_ADDRESS */


#if !DEVICE_LOCK_BLOCK /* if there is no device.c implementation */
/****************************************************************************
 *
 * TMPL_LockBlock
 *
 * Description:   
 *
 *    This procedure is called to lock the specified block on 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:
 *
 *    NONE
 *
 ***************************************************************************/
TMPL_Status TMPL_LockBlock ( UINT16 blocknum,
                             UINT8  returnSR )
{

   TMPL_Status stat;

   stat.Result = StatUnsupported;

   return( stat );
}
#endif /* !DEVICE_LOCK_BLOCK */


#if !DEVICE_LOCK_DOWN_BLOCK /* if there is no device.c implementation */
/****************************************************************************
 *
 * TMPL_LockDownBlock
 *
 * Description:   
 *
 *    This procedure is called to lockdown the specified block on 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:
 *
 *    NONE
 *
 ***************************************************************************/
TMPL_Status TMPL_LockDownBlock ( UINT16 blocknum,
                                 UINT8  returnSR )
{

   TMPL_Status stat;

   stat.Result = StatUnsupported;

   return( stat );
}
#endif /* !DEVICE_LOCK_DOWN_BLOCK */


#if !DEVICE_LOCK_PROTECTION /* if there is no device.c implementation */
/****************************************************************************
 *
 * TMPL_LockProtection
 *
 * Description:   
 *
 *    This procedure is called to program the protection register user lock
 *    bit on the flash device.  See the flash device datasheet for specific
 *    details on this 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_LockProtection ( UINT8 returnSR )
{
   TMPL_Status stat;

   stat.Result = StatUnsupported;