/* * descriptor_gbe.c * This file is part of the ich9deblob utility from the libreboot project * * Purpose: common descriptor/gbe functions used by ich9deblob * * Copyright (C) 2014, 2015 Leah Rowe <info@minifree.org> * Copyright (C) 2014 Steve Shenton <sgsit@libreboot.org> * * 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 3 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, see <http://www.gnu.org/licenses/>. */ #include "descriptor_gbe.h" /* * create 12KiB file with descriptor, and then gbe immediately after. */ int notCreatedDescriptorGbeFile(struct DESCRIPTORREGIONRECORD descriptorStruct, struct GBEREGIONRECORD_8K gbeStruct8k, char* fileName) { FILE* fileStream = NULL; /* delete old file before continuing */ remove(fileName); /* open new file for writing the descriptor+gbe */ fileStream = fopen(fileName, "ab"); /* write the descriptor region into the first part */ if (DESCRIPTORREGIONSIZE != fwrite((uint8_t*)&descriptorStruct, 1, sizeof(descriptorStruct), fileStream)) { printf("\nerror: writing descriptor region failed\n"); return 1; } /* add gbe to the end of the file */ if (GBEREGIONSIZE_8K != fwrite((uint8_t*)&gbeStruct8k, 1, sizeof(gbeStruct8k), fileStream)) { printf("\nerror: writing GBe region failed\n"); return 1; } fclose(fileStream); printf("descriptor and gbe successfully written to the file: %s\n", fileName); printf("Now do: dd if=%s of=libreboot.rom bs=1 count=12k conv=notrunc\n", fileName); printf("(in other words, add the modified descriptor+gbe to your ROM image)\n\n"); return 0; } /* * create 4KiB file with descriptor */ int notCreated4kDescriptorFile(struct DESCRIPTORREGIONRECORD descriptorStruct, char* fileName) { FILE* fileStream = NULL; /* delete old file before continuing */ remove(fileName); /* open new file for writing the descriptor+gbe */ fileStream = fopen(fileName, "ab"); /* write the descriptor region into the first part */ if (DESCRIPTORREGIONSIZE != fwrite((uint8_t*)&descriptorStruct, 1, sizeof(descriptorStruct), fileStream)) { printf("\nerror: writing descriptor region failed\n"); return 1; } fclose(fileStream); printf("descriptor successfully written to the file: %s\n", fileName); printf("Now do: dd if=%s of=yourrom.rom bs=1 count=4k conv=notrunc\n", fileName); printf("(in other words, add the modified descriptor to your ROM image)\n\n"); return 0; }