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/*
* Copyright (c) 2000 - 2017 Samsung Electronics Co., Ltd.
*
* Contact: MyoungJune Park <mj2004.park@samsung.com>
* Created by Wonil Choi <wonil22.choi@samsung.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include <stdio.h>
#include <stdint.h>
#include <fcntl.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include <errno.h>
#include "ccerror.h"
#define PARAM_CC_ENC_RAW_SIZE 64
#define PARAM_CC_FLAG_OFFSET 0x800
static const char dev_params[] = {
"/dev/disk/by-partlabel/param"
};
int resetSBFCCM(void)
{
int ret, fd;
uint8_t eraw[PARAM_CC_ENC_RAW_SIZE];
memset(eraw, 0, PARAM_CC_ENC_RAW_SIZE);
if ((fd = open(dev_params, O_WRONLY)) == -1) {
ret = -CC_ERROR_UTIL_RESETSBFCCM;
goto open_fail;
}
if (lseek(fd, -(PARAM_CC_FLAG_OFFSET), SEEK_END) == -1) {
ret = -(CC_ERROR_UTIL_RESETSBFCCM + 2);
goto out;
}
if (write(fd, eraw, PARAM_CC_ENC_RAW_SIZE) != PARAM_CC_ENC_RAW_SIZE) {
ret = -(CC_ERROR_UTIL_RESETSBFCCM + 3);
goto out;
}
ret = CC_ERROR_NONE;
out:
close(fd);
open_fail:
return ret;
}
int main(void)
{
int ret = resetSBFCCM();
printf("resetSBFCCM() returns %d\n", ret);
return ret;
}
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