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/*
ChibiOS/RT - Copyright (C) 2014 Uladzimir Pylinsky aka barthess
Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
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.
*/
/**
* @file hal_nand.h
* @brief NAND Driver macros and structures.
*
* @addtogroup NAND
* @{
*/
#ifndef HAL_NAND_H_
#define HAL_NAND_H_
#if (HAL_USE_NAND == TRUE) || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/*
* Standard NAND flash commands
*/
#define NAND_CMD_READ0 0x00
#define NAND_CMD_RNDOUT 0x05
#define NAND_CMD_PAGEPROG 0x10
#define NAND_CMD_READ0_CONFIRM 0x30
#define NAND_CMD_READOOB 0x50
#define NAND_CMD_ERASE 0x60
#define NAND_CMD_STATUS 0x70
#define NAND_CMD_STATUS_MULTI 0x71
#define NAND_CMD_WRITE 0x80
#define NAND_CMD_RNDIN 0x85
#define NAND_CMD_READID 0x90
#define NAND_CMD_ERASE_CONFIRM 0xD0
#define NAND_CMD_RESET 0xFF
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/**
* @brief Enables the mutual exclusion APIs on the NAND.
*/
#if !defined(NAND_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
#define NAND_USE_MUTUAL_EXCLUSION FALSE
#endif
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
#if NAND_USE_MUTUAL_EXCLUSION && !CH_CFG_USE_MUTEXES && !CH_CFG_USE_SEMAPHORES
#error "NAND_USE_MUTUAL_EXCLUSION requires CH_CFG_USE_MUTEXES and/or CH_CFG_USE_SEMAPHORES"
#endif
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief Driver state machine possible states.
*/
typedef enum {
NAND_UNINIT = 0, /**< Not initialized. */
NAND_STOP = 1, /**< Stopped. */
NAND_READY = 2, /**< Ready. */
NAND_PROGRAM = 3, /**< Programming in progress. */
NAND_ERASE = 4, /**< Erasing in progress. */
NAND_WRITE = 5, /**< Writing to NAND buffer. */
NAND_READ = 6, /**< Reading from NAND. */
NAND_DMA_TX = 7, /**< DMA transmitting. */
NAND_DMA_RX = 8, /**< DMA receiving. */
NAND_RESET = 9, /**< Software reset in progress. */
} nandstate_t;
/**
* @brief Type of a structure representing a NAND driver.
*/
typedef struct NANDDriver NANDDriver;
#include "hal_nand_lld.h"
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
void nandInit(void);
void nandObjectInit(NANDDriver *nandp);
void nandStart(NANDDriver *nandp, const NANDConfig *config, bitmap_t *bb_map);
void nandStop(NANDDriver *nandp);
void nandReadPageWhole(NANDDriver *nandp, uint32_t block, uint32_t page,
uint8_t *data, size_t datalen);
void nandMarkBad(NANDDriver *nandp, uint32_t block);
void nandReadPageData(NANDDriver *nandp, uint32_t block, uint32_t page,
uint8_t *data, size_t datalen, uint32_t *ecc);
void nandReadPageSpare(NANDDriver *nandp, uint32_t block, uint32_t page,
uint8_t *spare, size_t sparelen);
uint8_t nandWritePageWhole(NANDDriver *nandp, uint32_t block, uint32_t page,
const uint8_t *data, size_t datalen);
uint8_t nandWritePageData(NANDDriver *nandp, uint32_t block, uint32_t page,
const uint8_t *data, size_t datalen, uint32_t *ecc);
uint8_t nandWritePageSpare(NANDDriver *nandp, uint32_t block, uint32_t page,
const uint8_t *spare, size_t sparelen);
uint8_t nandReadBadMark(NANDDriver *nandp, uint32_t block, uint32_t page);
uint8_t nandErase(NANDDriver *nandp, uint32_t block);
bool nandIsBad(NANDDriver *nandp, uint32_t block);
#if NAND_USE_MUTUAL_EXCLUSION
void nandAcquireBus(NANDDriver *nandp);
void nandReleaseBus(NANDDriver *nandp);
#endif /* NAND_USE_MUTUAL_EXCLUSION */
#ifdef __cplusplus
}
#endif
#endif /* HAL_USE_NAND */
#endif /* _NAND_H_ */
/** @} */
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