153 lines
5.9 KiB
C
153 lines
5.9 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 emcnand.h
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* @brief EMCNAND Driver macros and structures.
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*
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* @addtogroup EMCNAND
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* @{
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*/
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#ifndef _EMCNAND_H_
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#define _EMCNAND_H_
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#if HAL_USE_EMCNAND || 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(EMCNAND_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
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#define EMCNAND_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 EMCNAND_USE_MUTUAL_EXCLUSION && !CH_CFG_USE_MUTEXES && !CH_CFG_USE_SEMAPHORES
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#error "EMCNAND_USE_MUTUAL_EXCLUSION requires CH_CFG_USE_MUTEXES and/or CH_CFG_USE_SEMAPHORES"
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#endif
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#if !HAL_USE_EMC
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#error "This driver requires EMC controller"
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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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EMCNAND_UNINIT = 0, /**< Not initialized. */
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EMCNAND_STOP = 1, /**< Stopped. */
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EMCNAND_READY = 2, /**< Ready. */
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EMCNAND_PROGRAM = 3, /**< Programming in progress. */
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EMCNAND_ERASE = 4, /**< Erasing in progress. */
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EMCNAND_WRITE = 5, /**< Writing to NAND buffer. */
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EMCNAND_READ = 6, /**< Reading from NAND. */
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EMCNAND_DMA_TX = 7, /**< DMA transmitting. */
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EMCNAND_DMA_RX = 8, /**< DMA receiving. */
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} emcnandstate_t;
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/**
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* @brief Type of a structure representing a EMCNAND driver.
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*/
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typedef struct EMCNANDDriver EMCNANDDriver;
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#include "emcnand_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 emcnandInit(void);
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void emcnandObjectInit(EMCNANDDriver *emcnandp);
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void emcnandStart(EMCNANDDriver *emcnandp, const EMCNANDConfig *config);
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void emcnandStop(EMCNANDDriver *emcnandp);
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void emcnandReadPageWhole(EMCNANDDriver *emcnandp, uint32_t block,
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uint32_t page, uint8_t *data, size_t datalen);
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uint8_t emcnandWritePageWhole(EMCNANDDriver *emcnandp, uint32_t block,
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uint32_t page, const uint8_t *data, size_t datalen);
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void emcnandReadPageData(EMCNANDDriver *emcnandp, 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 emcnandWritePageData(EMCNANDDriver *emcnandp, 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 emcnandReadPageSpare(EMCNANDDriver *emcnandp, uint32_t block,
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uint32_t page, uint8_t *spare, size_t sparelen);
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uint8_t emcnandWritePageSpare(EMCNANDDriver *emcnandp, uint32_t block,
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uint32_t page, const uint8_t *spare, size_t sparelen);
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void emcnandMarkBad(EMCNANDDriver *emcnandp, uint32_t block);
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uint8_t emcnandReadBadMark(EMCNANDDriver *emcnandp,
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uint32_t block, uint32_t page);
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uint8_t emcnandErase(EMCNANDDriver *emcnandp, uint32_t block);
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bool emcnandIsBad(EMCNANDDriver *emcnandp, uint32_t block);
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#if EMCNAND_USE_MUTUAL_EXCLUSION
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void emcnandAcquireBus(EMCNANDDriver *emcnandp);
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void emcnandReleaseBus(EMCNANDDriver *emcnandp);
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#endif /* EMCNAND_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_EMCNAND */
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#endif /* _EMCNAND_H_ */
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/** @} */
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