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author | Francis Rowe <info@gluglug.org.uk> | 2014-12-25 16:25:49 (EST) |
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committer | Francis Rowe <info@gluglug.org.uk> | 2014-12-25 16:25:49 (EST) |
commit | a8b13d23f29a08026eaa308b8b09be7e9d1ff5a6 (patch) | |
tree | 0cdc767b9b44b94ca4fbec16bf88496bc4656dd4 /resources/utilities/ich9deblob/src/common/descriptor_gbe.c | |
parent | 655ac91c5db8818c7cef7e9e44febaf36459d394 (diff) | |
download | libreboot-a8b13d23f29a08026eaa308b8b09be7e9d1ff5a6.zip libreboot-a8b13d23f29a08026eaa308b8b09be7e9d1ff5a6.tar.gz libreboot-a8b13d23f29a08026eaa308b8b09be7e9d1ff5a6.tar.bz2 |
ich9deblob: moved src to src/, .o files to obj/
Diffstat (limited to 'resources/utilities/ich9deblob/src/common/descriptor_gbe.c')
-rw-r--r-- | resources/utilities/ich9deblob/src/common/descriptor_gbe.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/resources/utilities/ich9deblob/src/common/descriptor_gbe.c b/resources/utilities/ich9deblob/src/common/descriptor_gbe.c new file mode 100644 index 0000000..fcb80d0 --- /dev/null +++ b/resources/utilities/ich9deblob/src/common/descriptor_gbe.c @@ -0,0 +1,68 @@ +/* + * 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 Steve Shenton <sgsit@libreboot.org> + * Francis Rowe <info@gluglug.org.uk> + * + * 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; + + /* These will have the structs copied to them */ + char descriptorBuffer[DESCRIPTORREGIONSIZE]; + char gbeBuffer8k[GBEREGIONSIZE_8K]; + + /* Copy the structs to buffers, to make writing them as files easier */ + memcpy(&descriptorBuffer, &descriptorStruct, DESCRIPTORREGIONSIZE); /* descriptor */ + memcpy(&gbeBuffer8k, &gbeStruct8k, GBEREGIONSIZE_8K); /* gbe */ + + /* 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(descriptorBuffer, sizeof(char), DESCRIPTORREGIONSIZE, fileStream)) + { + printf("\nerror: writing descriptor region failed\n"); + return 1; + } + + /* add gbe to the end of the file */ + if (GBEREGIONSIZE_8K != fwrite(gbeBuffer8k, sizeof(char), GBEREGIONSIZE_8K, 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=deblobbed_descriptor.bin of=libreboot.rom bs=1 count=12k conv=notrunc\n"); + printf("(in other words, add the modified descriptor+gbe to your ROM image)\n\n"); + + return 0; +} |