149 lines
5.7 KiB
C
149 lines
5.7 KiB
C
/*
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ChibiOS/HAL - Copyright (C) 2006,2007,2008,2009,2010,
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2011,2012,2013,2014 Giovanni Di Sirio.
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This file is part of ChibiOS/HAL
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ChibiOS/HAL is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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Concepts and parts of this file have been contributed by Uladzimir Pylinsky
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aka barthess.
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*/
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/**
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* @file nand.h
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* @brief NAND Driver macros and structures.
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*
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* @addtogroup NAND
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* @{
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*/
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#ifndef _NAND_H_
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#define _NAND_H_
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#if HAL_USE_NAND || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver constants. */
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/*===========================================================================*/
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/*
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* Standard NAND flash commands
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*/
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#define NAND_CMD_READ0 0x00
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#define NAND_CMD_RNDOUT 0x05
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#define NAND_CMD_PAGEPROG 0x10
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#define NAND_CMD_READ0_CONFIRM 0x30
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#define NAND_CMD_READOOB 0x50
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#define NAND_CMD_ERASE 0x60
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#define NAND_CMD_STATUS 0x70
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#define NAND_CMD_STATUS_MULTI 0x71
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#define NAND_CMD_WRITE 0x80
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#define NAND_CMD_RNDIN 0x85
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#define NAND_CMD_READID 0x90
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#define NAND_CMD_ERASE_CONFIRM 0xD0
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#define NAND_CMD_RESET 0xFF
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/*===========================================================================*/
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/* Driver pre-compile time settings. */
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/*===========================================================================*/
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/**
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* @brief Enables the mutual exclusion APIs on the NAND.
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*/
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#if !defined(NAND_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
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#define NAND_USE_MUTUAL_EXCLUSION FALSE
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#endif
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/*===========================================================================*/
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/* Derived constants and error checks. */
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/*===========================================================================*/
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#if NAND_USE_MUTUAL_EXCLUSION && !CH_CFG_USE_MUTEXES && !CH_CFG_USE_SEMAPHORES
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#error "NAND_USE_MUTUAL_EXCLUSION requires CH_CFG_USE_MUTEXES and/or CH_CFG_USE_SEMAPHORES"
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#endif
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/*===========================================================================*/
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/* Driver data structures and types. */
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/*===========================================================================*/
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/**
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* @brief Driver state machine possible states.
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*/
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typedef enum {
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NAND_UNINIT = 0, /**< Not initialized. */
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NAND_STOP = 1, /**< Stopped. */
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NAND_READY = 2, /**< Ready. */
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NAND_PROGRAM = 3, /**< Programming in progress. */
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NAND_ERASE = 4, /**< Erasing in progress. */
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NAND_WRITE = 5, /**< Writing to NAND buffer. */
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NAND_READ = 6, /**< Reading from NAND. */
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NAND_DMA_TX = 7, /**< DMA transmitting. */
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NAND_DMA_RX = 8, /**< DMA receiving. */
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} nandstate_t;
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/**
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* @brief Type of a structure representing a NAND driver.
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*/
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typedef struct NANDDriver NANDDriver;
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#include "nand_lld.h"
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/*===========================================================================*/
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/* Driver macros. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* External declarations. */
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/*===========================================================================*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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void nandInit(void);
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void nandObjectInit(NANDDriver *nandp);
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void nandStart(NANDDriver *nandp, const NANDConfig *config);
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void nandStop(NANDDriver *nandp);
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void nandReadPageWhole(NANDDriver *nandp, uint32_t block,
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uint32_t page, uint8_t *data, size_t datalen);
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uint8_t nandWritePageWhole(NANDDriver *nandp, uint32_t block,
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uint32_t page, const uint8_t *data, size_t datalen);
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void nandReadPageData(NANDDriver *nandp, uint32_t block,
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uint32_t page, uint8_t *data, size_t datalen, uint32_t *ecc);
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uint8_t nandWritePageData(NANDDriver *nandp, uint32_t block,
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uint32_t page, const uint8_t *data, size_t datalen, uint32_t *ecc);
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void nandReadPageSpare(NANDDriver *nandp, uint32_t block,
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uint32_t page, uint8_t *spare, size_t sparelen);
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uint8_t nandWritePageSpare(NANDDriver *nandp, uint32_t block,
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uint32_t page, const uint8_t *spare, size_t sparelen);
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void nandMarkBad(NANDDriver *nandp, uint32_t block);
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uint8_t nandReadBadMark(NANDDriver *nandp,
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uint32_t block, uint32_t page);
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uint8_t nandErase(NANDDriver *nandp, uint32_t block);
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bool nandIsBad(NANDDriver *nandp, uint32_t block);
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#if NAND_USE_MUTUAL_EXCLUSION
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void nandAcquireBus(NANDDriver *nandp);
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void nandReleaseBus(NANDDriver *nandp);
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#endif /* NAND_USE_MUTUAL_EXCLUSION */
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#ifdef __cplusplus
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}
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#endif
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#endif /* HAL_USE_NAND */
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#endif /* _NAND_H_ */
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/** @} */
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