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/*
*
* Copyright 2015-present Facebook. All Rights Reserved.
*
* This file provides platform specific implementation of FRUID information
*
* FRUID specification can be found at
* www.intel.com/content/dam/www/public/us/en/documents/product-briefs/platform-management-fru-document-rev-1-2-feb-2013.pdf
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <syslog.h>
#include <string.h>
#include <stdint.h>
#include "fruid.h"
#define EEPROM_SPB "/sys/class/i2c-adapter/i2c-8/8-0051/eeprom"
#define BIN_SPB "/tmp/fruid_spb.bin"
#define NAME_SPB "Side Plane Board"
#define BUF_SIZE 1024
/*
* copy_eeprom_to_bin - copy the eeprom to binary file im /tmp directory
*
* @eeprom_file : path for the eeprom of the device
* @bin_file : path for the binary file
*
* returns 0 on successful copy
* returns non-zero on file operation errors
*/
int copy_eeprom_to_bin(const char * eeprom_file, const char * bin_file) {
int eeprom;
int bin;
uint64_t tmp[BUF_SIZE];
ssize_t bytes_rd, bytes_wr;
errno = 0;
if (access(eeprom_file, F_OK) != -1) {
eeprom = open(eeprom_file, O_RDONLY);
if (eeprom == -1) {
syslog(LOG_ERR, "copy_eeprom_to_bin: unable to open the %s file: %s",
eeprom_file, strerror(errno));
return errno;
}
bin = open(bin_file, O_WRONLY | O_CREAT, 0644);
if (bin == -1) {
syslog(LOG_ERR, "copy_eeprom_to_bin: unable to create %s file: %s",
bin_file, strerror(errno));
return errno;
}
while ((bytes_rd = read(eeprom, tmp, BUF_SIZE)) > 0) {
bytes_wr = write(bin, tmp, bytes_rd);
if (bytes_wr != bytes_rd) {
syslog(LOG_ERR, "copy_eeprom_to_bin: write to %s file failed: %s",
bin_file, strerror(errno));
return errno;
}
}
close(bin);
close(eeprom);
}
return 0;
}
/* Populate the platform specific eeprom for fruid info */
int plat_fruid_init(void) {
int ret;
ret = copy_eeprom_to_bin(EEPROM_SPB, BIN_SPB);
return ret;
}
int plat_fruid_size(void) {
/* TODO: Not supported yet */
return 0;
}
int plat_fruid_data(int offset, int count, unsigned char *data) {
/* TODO: Not supported yet */
return 0;
}
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