143 lines
4.8 KiB
C
143 lines
4.8 KiB
C
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/*
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Copyright (c) 2013 Timon Wong
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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/*
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Copyright 2012 Uladzimir Pylinski aka barthess.
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You may use this work without restrictions, as long as this notice is included.
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The work is provided "as is" without warranty of any kind, neither express nor implied.
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*/
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#ifndef HAL_EEPROM_H_
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#define HAL_EEPROM_H_
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#include "hal.h"
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#ifndef EEPROM_USE_EE25XX
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#define EEPROM_USE_EE25XX FALSE
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#endif
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#ifndef EEPROM_USE_EE24XX
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#define EEPROM_USE_EE24XX FALSE
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#endif
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#if (HAL_USE_EEPROM == TRUE) || defined(__DOXYGEN__)
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#if EEPROM_USE_EE25XX && EEPROM_USE_EE24XX
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#define EEPROM_TABLE_SIZE 2
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#elif EEPROM_USE_EE25XX || EEPROM_USE_EE24XX
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#define EEPROM_TABLE_SIZE 1
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#else
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#error "No EEPROM device selected!"
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#endif
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#if EEPROM_USE_EE25XX && !HAL_USE_SPI
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#error "25xx enabled but SPI driver is disabled!"
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#endif
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#if EEPROM_USE_EE24XX && !HAL_USE_I2C
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#error "24xx enabled but I2C driver is disabled!"
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#endif
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#define _eeprom_file_config_data \
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/* Lower barrier of file in EEPROM memory array. */ \
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uint32_t barrier_low; \
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/* Higher barrier of file in EEPROM memory array. */ \
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uint32_t barrier_hi; \
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/* Size of memory array in bytes. */ \
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uint32_t size; \
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/* Size of single page in bytes. */ \
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uint16_t pagesize; \
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/* Time needed by IC for single byte/page writing. */ \
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systime_t write_time;
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typedef uint32_t fileoffset_t;
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typedef struct {
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_eeprom_file_config_data
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} EepromFileConfig;
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/**
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* @brief @p EepromFileStream specific data.
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*/
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#define _eeprom_file_stream_data \
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_base_sequential_stream_data \
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uint32_t errors; \
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uint32_t position; \
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/**
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* @extends BaseFileStreamVMT
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*
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* @brief @p EepromFileStream virtual methods table.
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*/
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struct EepromFileStreamVMT {
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_file_stream_methods
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};
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/**
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* @extends BaseFileStream
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*
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* @brief EEPROM file stream driver class.
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* @details This class extends @p BaseFileStream by adding some fields.
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*/
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typedef struct {
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/** @brief Virtual Methods Table.*/
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const struct EepromFileStreamVMT *vmt;
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_eeprom_file_stream_data
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/** pointer to config object, must be overwritten by all derived classes.*/
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const EepromFileConfig *cfg;
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} EepromFileStream;
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/**
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* @brief Low level device descriptor.
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*/
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typedef struct {
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const uint8_t id;
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const struct EepromFileStreamVMT *efsvmt;
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} EepromDevice;
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const EepromDevice *EepromFindDevice(uint8_t id);
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EepromFileStream *EepromFileOpen(EepromFileStream *efs,
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const EepromFileConfig *eepcfg,
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const EepromDevice *eepdev);
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uint8_t EepromReadByte(EepromFileStream *efs);
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uint16_t EepromReadHalfword(EepromFileStream *efs);
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uint32_t EepromReadWord(EepromFileStream *efs);
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size_t EepromWriteByte(EepromFileStream *efs, uint8_t data);
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size_t EepromWriteHalfword(EepromFileStream *efs, uint16_t data);
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size_t EepromWriteWord(EepromFileStream *efs, uint32_t data);
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msg_t eepfs_getsize(void *ip);
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msg_t eepfs_getposition(void *ip);
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msg_t eepfs_lseek(void *ip, fileoffset_t offset);
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msg_t eepfs_close(void *ip);
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msg_t eepfs_geterror(void *ip);
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msg_t eepfs_put(void *ip, uint8_t b);
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msg_t eepfs_get(void *ip);
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#include "hal_ee24xx.h"
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#include "hal_ee25xx.h"
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#endif /* #if defined(HAL_USE_EEPROM) && HAL_USE_EEPROM */
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#endif /* HAL_EEPROM_H_ */
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