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/****************************************************************************
* config/hn70ap/src/hn70ap_eeprom.c
*
* Copyright (C) 2018 Sebastien Lorquet. All rights reserved.
* Author: Sebastien Lorquet <sebastien@lorquet.fr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdbool.h>
#include <stdio.h>
#include <syslog.h>
#include <errno.h>
#include <nuttx/board.h>
#include <nuttx/kmalloc.h>
#include <nuttx/i2c/i2c_master.h>
#include <nuttx/eeprom/i2c_xx24xx.h>
#include "stm32.h"
#include "hn70ap.h"
int hn70ap_eeprom_initialize(void)
{
struct i2c_master_s *i2c3;
int ret;
i2c3 = stm32_i2cbus_initialize(3);
if (!i2c3)
{
_err("ERROR: Failed to initialize I2C port 3\n");
return -ENODEV;
}
#if defined(CONFIG_I2C_DRIVER)
/* register a test i2c char driver for tests */
ret = i2c_register(i2c3, 3);
if(ret != 0)
{
_err("Failed to register char driver for i2c3\n");
return -EIO;
}
syslog(LOG_INFO, "Registered i2c bus device /dev/i2c3\n");
#endif
#if defined(CONFIG_I2C_EE_24XX)
ret = ee24xx_initialize(i2c3, 0x50, "/dev/eeprom", EEPROM_24xx02, false);
if(ret != 0)
{
_err("Failed to register char driver for eeprom\n");
return -EIO;
}
syslog(LOG_INFO, "Registered /dev/eeprom\n");