91 lines
2.9 KiB
C
91 lines
2.9 KiB
C
/*
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* descriptor_gbe.c
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* This file is part of the ich9deblob utility from the libreboot project
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*
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* Purpose: common descriptor/gbe functions used by ich9deblob
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*
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* Copyright (C) 2014, 2015 Leah Rowe <info@minifree.org>
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* Copyright (C) 2014 Steve Shenton <sgsit@libreboot.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "descriptor_gbe.h"
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/*
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* create 12KiB file with descriptor, and then gbe immediately after.
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*/
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int notCreatedDescriptorGbeFile(struct DESCRIPTORREGIONRECORD descriptorStruct, struct GBEREGIONRECORD_8K gbeStruct8k, char* fileName)
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{
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FILE* fileStream = NULL;
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/* delete old file before continuing */
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remove(fileName);
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/* open new file for writing the descriptor+gbe */
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fileStream = fopen(fileName, "ab");
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/* write the descriptor region into the first part */
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if (DESCRIPTORREGIONSIZE != fwrite((uint8_t*)&descriptorStruct, 1, sizeof(descriptorStruct), fileStream))
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{
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printf("\nerror: writing descriptor region failed\n");
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return 1;
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}
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/* add gbe to the end of the file */
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if (GBEREGIONSIZE_8K != fwrite((uint8_t*)&gbeStruct8k, 1, sizeof(gbeStruct8k), fileStream))
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{
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printf("\nerror: writing GBe region failed\n");
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return 1;
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}
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fclose(fileStream);
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printf("descriptor and gbe successfully written to the file: %s\n", fileName);
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printf("Now do: dd if=%s of=libreboot.rom bs=1 count=12k conv=notrunc\n", fileName);
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printf("(in other words, add the modified descriptor+gbe to your ROM image)\n\n");
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return 0;
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}
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/*
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* create 4KiB file with descriptor
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*/
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int notCreated4kDescriptorFile(struct DESCRIPTORREGIONRECORD descriptorStruct, char* fileName)
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{
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FILE* fileStream = NULL;
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/* delete old file before continuing */
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remove(fileName);
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/* open new file for writing the descriptor+gbe */
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fileStream = fopen(fileName, "ab");
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/* write the descriptor region into the first part */
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if (DESCRIPTORREGIONSIZE != fwrite((uint8_t*)&descriptorStruct, 1, sizeof(descriptorStruct), fileStream))
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{
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printf("\nerror: writing descriptor region failed\n");
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return 1;
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}
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fclose(fileStream);
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printf("descriptor successfully written to the file: %s\n", fileName);
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printf("Now do: dd if=%s of=yourrom.rom bs=1 count=4k conv=notrunc\n", fileName);
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printf("(in other words, add the modified descriptor to your ROM image)\n\n");
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return 0;
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}
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