intflash_driver.h

flash AM29LV160 的驱动程序

/*
 * File       : IntFlash_Driver.h
 * Description: This file contains the Flash driver for use in ZiLOG File System
 * Author     :  
 * Created on : 04-OCT-2004
 *
 * Copyright 2004 ZiLOG Inc.  ALL RIGHTS RESERVED.
 *
 * This file contains unpublished confidential and proprietary information
 * of ZiLOG, Inc.
 * NO PART OF THIS WORK MAY BE DUPLICATED, STORED, PUBLISHED OR DISCLOSED 
 * IN ANY FORM WITHOUT THE PRIOR WRITTEN CONSENT OF ZiLOG, INC.
 * This is not a license and no use of any kind of this work is authorized
 * in the absence of a written license granted by ZiLOG, Inc. in ZiLOG's 
 * sole discretion 
 */
#ifndef _INTFLASH_DRIVER_H_
#define _INTFLASH_DRIVER_H_

#include "ZTypes.h"

#ifdef _EZ80F91
#define	GETPAGE( x )		((UINT8)( (0x0FF800&(x)) >> 11 ))	/** x[ 20:11 ] */
#define	GETROW( x )			((UINT8)( (0x000700&(x)) >> 8 ))	/** x[ 10:8 ] */
#define	GETCOL( x )			((UINT8)( (0x0000FF&(x)) ))		/** x[ 7:0 ] */
#endif

#ifdef _EZ80F92
#define	GETPAGE( x )		((UINT8)( (0x01FC00&(x)) >> 10 ))	/** x[ 16:10 ] */
#define	GETROW( x )			((UINT8)( (0x000380&(x)) >> 7 ))	/** x[ 9:7 ] */
#define	GETCOL( x )			((UINT8)( (0x00007F&(x)) ))		/** x[ 6:0 ] */
#endif

#ifdef _EZ80F93
//TBD
#define	GETPAGE( x )		((UINT8)( (0x01FC00&(x)) >> 10 ))	/** x[ 16:10 ] */
#define	GETROW( x )			((UINT8)( (0x000380&(x)) >> 7 ))	/** x[ 9:7 ] */
#define	GETCOL( x )			((UINT8)( (0x00007F&(x)) ))		/** x[ 6:0 ] */
#endif

// Flash register values
//FLASH_PGCTL
#define FLASH_PGCTL_ROW_PGM_ENABLE		( ( UINT8 ) 0x04 )
#define FLASH_PGCTL_ROW_PGM_DISABLE		( ( UINT8 ) 0x00 )
#define FLASH_PGCTL_PG_ERASE_ENABLE		( ( UINT8 ) 0x02 )
#define FLASH_PGCTL_PG_ERASE_COMPLETED	( ( UINT8 ) 0x00 )
#define FLASH_PGCTL_PG_ERASE_DISABLE	( ( UINT8 ) 0x00 )
#define FLASH_PGCTL_MASS_ERASE_ENABLE	( ( UINT8 ) 0x01 )
#define FLASH_PGCTL_MASS_ERASE_DISABLE	( ( UINT8 ) 0x00 )

//FLASH_PAGE
#define FLASH_PAGE_INFO_ACCESS			( ( UINT8 ) 0x80 )
#define FLASH_PAGE_MEM_ACCESS			( ( UINT8 ) 0x00 )

//FLASH_IRQ
#define FLASH_IRQ_DONE_IEN_ENABLE		( ( UINT8 ) 0x80 )
#define FLASH_IRQ_DONE_IEN_DISABLE		( ( UINT8 ) 0x00 )
#define FLASH_IRQ_ERR_IEN_ENABLE		( ( UINT8 ) 0x40 )
#define FLASH_IRQ_ERR_IEN_DISABLE		( ( UINT8 ) 0x00 )
#define FLASH_IRQ_DONE_ENABLE			( ( UINT8 ) 0x20 )
#define FLASH_IRQ_DONE_DISABLE			( ( UINT8 ) 0x00 )
#define FLASH_IRQ_WR_VIO				( ( UINT8 ) 0x08 )
#define FLASH_IRQ_RP_TMO				( ( UINT8 ) 0x04 )
#define FLASH_IRQ_PG_VIO				( ( UINT8 ) 0x02 )
#define FLASH_IRQ_MASS_VIO				( ( UINT8 ) 0x01 )

//FLASH_FDIV


#ifndef SUCCESS
#define SUCCESS (0x00)
#endif

// extern variables
extern UINT32 g_nSysClock ;
extern UINT8 g_nPagesPerBlock ;

//StandAlone driver function prototypes
INT IntFlash_Init(  void *paddr, UINT32 num_bytes   );
INT32 IntFlash_Read( void *paddr, void *pbuf, UINT num_bytes );
INT32 IntFlash_Write( void *paddr, void *pbuf, UINT num_bytes );
INT IntFlash_Erase( void *paddr, UINT32 num_bytes );
INT IntFlash_Close( void );

//FileSystem integrated function prototypes
INT FS_IntFlash_Init( void *paddr, UINT32 num_bytes ) ;
INT32 FS_IntFlash_Read( void *paddr, void *pbuf, UINT num_bytes ) ;
INT32 FS_IntFlash_Write( void *paddr, void *pbuf, UINT num_bytes ) ;
INT FS_IntFlash_Erase( void *paddr, UINT32 num_bytes ) ;
INT FS_IntFlash_Close( void ) ;

#endif // _INTFLASH_DRIVER_H_