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/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2008, Atmel Corporation
*
* All rights reserved.
*
* 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 disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ----------------------------------------------------------------------------
*/
//------------------------------------------------------------------------------
/// \page "EccNandFlash"
///
/// !!!Purpose
///
/// EccNandFlash layer is called by SkipBlockNandFlash driver, it will call the bl driver (RawNandFlash)
/// to do write/read operations, and do ECC check to the write/read result, it then will feedback the
/// ecc check result to the upper SkipBlockNandFlash layer driver.
///
/// !!!Usage
///
/// -# EccNandFlash_Initialize is used to initializes an EccNandFlash instance.
/// -# EccNandFlash_WritePage is used to write a Nandflash page with ecc result, the function
/// will calculate ecc for the data that is going to be written, and write data and spare(with
/// calculated ecc) to Nandflash device.
/// -# EccNandFlash_ReadPage is uese to read a Nandflash page with ecc check, the function
/// will read out data and spare first, then it calculates ecc with data and then compare with
/// the readout ecc, and feedback the ecc check result to dl driver.
//------------------------------------------------------------------------------
#ifndef ECCNANDFLASH_H
#define ECCNANDFLASH_H
//------------------------------------------------------------------------------
// Headers
//------------------------------------------------------------------------------
#include "RawNandFlash.h"
#include <board.h>
//------------------------------------------------------------------------------
// Types
//------------------------------------------------------------------------------
struct EccNandFlash {
struct RawNandFlash raw;
};
//------------------------------------------------------------------------------
// Exported functions
//------------------------------------------------------------------------------
extern unsigned char EccNandFlash_Initialize(
struct EccNandFlash *ecc,
const struct NandFlashModel *model,
unsigned int commandAddress,
unsigned int addressAddress,
unsigned int dataAddress,
const Pin pinChipEnable,
const Pin pinReadyBusy);
extern unsigned char EccNandFlash_ReadPage(
const struct EccNandFlash *ecc,
unsigned short block,
unsigned short page,
void *data,
void *spare);
extern unsigned char EccNandFlash_WritePage(
const struct EccNandFlash *ecc,
unsigned short block,
unsigned short page,
void *data,
void *spare);
extern void EccNandlfash_SetNoECC(void);
extern void EccNandlfash_ClearNoECC(void);
extern unsigned char EccNandlfash_GetNoECC(void);
#endif //#ifndef ECCNANDFLASH_H
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