/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <errno.h>
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#include "Utils.h"
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#include "BurnNandBoot.h"
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#define NAND_BLKBURNBOOT0 _IO('v',127)
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#define NAND_BLKBURNUBOOT _IO('v',128)
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#define DEVNODE_PATH_NAND "/dev/block/by-name/bootloader"
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void clearPageCache(){
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FILE *fp = fopen("/proc/sys/vm/drop_caches", "w+");
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const char *num = "1";
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fwrite(num, sizeof(char), 1, fp);
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fclose(fp);
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}
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int burnNandBoot0(BufferExtractCookie *cookie) {
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if (checkBoot0Sum(cookie)) {
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bb_debug("wrong boot0 binary file!\n");
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return -1;
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}
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int fd = open(DEVNODE_PATH_NAND, O_RDWR);
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if (fd == -1) {
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bb_debug("open device node failed ! errno is %d : %s\n", errno, strerror(errno));
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return -1;
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}
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clearPageCache();
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int ret = ioctl(fd, NAND_BLKBURNBOOT0, (unsigned long)cookie);
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if (ret) {
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bb_debug("burnNandBoot0 failed ! errno is %d : %s\n", errno, strerror(errno));
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} else {
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bb_debug("burnNandBoot0 succeed!\n");
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}
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close(fd);
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return ret;
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}
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int burnNandUboot(BufferExtractCookie *cookie) {
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if (checkUbootSum(cookie) && checkBoot1Sum(cookie)) {
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bb_debug("wrong uboot binary file!\n");
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return -1;
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}
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int fd = open(DEVNODE_PATH_NAND, O_RDWR);
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if (fd == -1) {
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bb_debug("open device node failed ! errno is %d : %s\n", errno, strerror(errno));
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return -1;
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}
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clearPageCache();
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int ret = ioctl(fd,NAND_BLKBURNUBOOT, (unsigned long)cookie);
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if (ret) {
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bb_debug("burnNandUboot failed ! errno is %d : %s\n", errno, strerror(errno));
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} else {
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bb_debug("burnNandUboot succeed!\n");
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}
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close(fd);
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return ret;
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}
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