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/*
ChibiOS/HAL - Copyright (C) 2014 Uladzimir Pylinsky aka barthess
This file is part of ChibiOS/HAL
ChibiOS/HAL is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
Concepts and parts of this file have been contributed by Uladzimir Pylinsky
aka barthess.
*/
/**
* @file nand.h
* @brief NAND Driver macros and structures.
*
* @addtogroup NAND
* @{
*/
#ifndef _NAND_H_
#define _NAND_H_
#if HAL_USE_NAND || 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. */
} nandstate_t;
/**
* @brief Type of a structure representing a NAND driver.
*/
typedef struct NANDDriver NANDDriver;
#include "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);
void nandStop(NANDDriver *nandp);
void nandReadPageWhole(NANDDriver *nandp, uint32_t block,
uint32_t page, uint8_t *data, size_t datalen);
uint8_t nandWritePageWhole(NANDDriver *nandp, uint32_t block,
uint32_t page, const uint8_t *data, size_t datalen);
void nandReadPageData(NANDDriver *nandp, uint32_t block,
uint32_t page, uint8_t *data, size_t datalen, uint32_t *ecc);
uint8_t nandWritePageData(NANDDriver *nandp, uint32_t block,
uint32_t page, const 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 nandWritePageSpare(NANDDriver *nandp, uint32_t block,
uint32_t page, const uint8_t *spare, size_t sparelen);
void nandMarkBad(NANDDriver *nandp, uint32_t block);
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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