/**
******************************************************************************
* @file nand_if.h
* @author MCD Application Team
* @version V4.0.0
* @date 21-January-2013
* @brief All functions related to the NAND process
******************************************************************************
* @attention
*
*
© COPYRIGHT 2013 STMicroelectronics
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __NAND_IF_H
#define __NAND_IF_H
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
#define NAND_OK 0
#define NAND_FAIL 1
#define FREE_BLOCK (1 << 12 )
#define BAD_BLOCK (1 << 13 )
#define VALID_BLOCK (1 << 14 )
#define USED_BLOCK (1 << 15 )
#define MAX_PHY_BLOCKS_PER_ZONE 1024
#define MAX_LOG_BLOCKS_PER_ZONE 1000
/* Private Structures---------------------------------------------------------*/
typedef struct __SPARE_AREA {
uint16_t LogicalIndex;
uint16_t DataStatus;
uint16_t BlockStatus;
} SPARE_AREA;
typedef enum {
WRITE_IDLE = 0,
POST_WRITE,
PRE_WRITE,
WRITE_CLEANUP,
WRITE_ONGOING
}WRITE_STATE;
typedef enum {
OLD_BLOCK = 0,
UNUSED_BLOCK
}BLOCK_STATE;
/* Private macro --------------------------------------------------------------*/
//#define WEAR_LEVELLING_SUPPORT
#define WEAR_DEPTH 10
#define PAGE_TO_WRITE (Transfer_Length/512)
/* Private variables ----------------------------------------------------------*/
/* Private function prototypes ------------------------------------------------*/
/* exported functions ---------------------------------------------------------*/
uint16_t NAND_Init (void);
uint16_t NAND_Write (uint32_t Memory_Offset, uint32_t *Writebuff, uint16_t Transfer_Length);
uint16_t NAND_Read (uint32_t Memory_Offset, uint32_t *Readbuff, uint16_t Transfer_Length);
uint16_t NAND_Format (void);
SPARE_AREA ReadSpareArea (uint32_t address);
#endif
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/