i2c-eeprom.h

00001 /*
00002   Plastic Logic EPD project on MSP430
00003 
00004   Copyright (C) 2013, 2014 Plastic Logic Limited
00005 
00006   This program is free software: you can redistribute it and/or modify
00007   it under the terms of the GNU General Public License as published by
00008   the Free Software Foundation, either version 3 of the License, or
00009   (at your option) any later version.
00010 
00011   This program is distributed in the hope that it will be useful,
00012   but WITHOUT ANY WARRANTY; without even the implied warranty of
00013   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014   GNU General Public License for more details.
00015 
00016   You should have received a copy of the GNU General Public License
00017   along with this program.  If not, see <http://www.gnu.org/licenses/>.
00018 */
00019 /*
00020  * i2c_eeprom.h -- I2C EEPROM driver
00021  *
00022  * Authors:
00023  *   Nick Terry <nick.terry@plasticlogic.com>
00024  *   Guillaume Tucker <guillaume.tucker@plasticlogic.com>
00025  *
00026  */
00027 
00028 #ifndef I2C_EEPROM_H
00029 #define I2C_EEPROM_H 1
00030 
00031 #include <stdint.h>
00032 
00033 struct pl_i2c;
00034 
00035 enum i2c_eeprom_type {
00036     EEPROM_24LC014,
00037     EEPROM_24AA256,
00038 };
00039 
00040 struct i2c_eeprom {
00041     struct pl_i2c *i2c;
00042     uint8_t i2c_addr;
00043     enum i2c_eeprom_type type;
00044 };
00045 
00046 extern int eeprom_read(const struct i2c_eeprom *eeprom, uint16_t offset,
00047                uint16_t count, uint8_t *data);
00048 #if CONFIG_EEPROM_WRITE
00049 extern int eeprom_write(const struct i2c_eeprom *eeprom, uint16_t offset,
00050             uint16_t count, const uint8_t *data);
00051 #endif
00052 
00053 #endif /* I2C_EEPROM_H */