diff options
author | Francis Rowe <info@gluglug.org.uk> | 2014-12-25 16:25:49 (EST) |
---|---|---|
committer | Francis Rowe <info@gluglug.org.uk> | 2014-12-25 16:25:49 (EST) |
commit | a8b13d23f29a08026eaa308b8b09be7e9d1ff5a6 (patch) | |
tree | 0cdc767b9b44b94ca4fbec16bf88496bc4656dd4 /resources/utilities/ich9deblob/gbe/gbe.h | |
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/gbe/gbe.h')
-rw-r--r-- | resources/utilities/ich9deblob/gbe/gbe.h | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/resources/utilities/ich9deblob/gbe/gbe.h b/resources/utilities/ich9deblob/gbe/gbe.h deleted file mode 100644 index bfcc002..0000000 --- a/resources/utilities/ich9deblob/gbe/gbe.h +++ /dev/null @@ -1,101 +0,0 @@ -/* - * gbe/gbe.h - * This file is part of the ich9deblob utility from the libreboot project - * - * 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/>. - */ - -/* - * Purpose: provide struct representing gbe region. - * Map actual buffers of this regions, directly to instances of these - * structs. This makes working with gbe really easy. - */ - -/* - * bit fields used, corresponding to datasheet. See links to datasheets - * and documentation in ich9deblob.c - */ - -#ifndef GBESTRUCT_H -#define GBESTRUCT_H - -#include <stdio.h> -#include <string.h> - -/* Size of the full gbe region in bytes */ -#define GBEREGIONSIZE_8K 0x2000 -/* - * Size of each sub-region in gbe. - * gbe contains two regions which - * can be identical: main and backup. - * These are each half the size of the full region - */ -#define GBEREGIONSIZE_4K 0x1000 - -/* - * When adding up the first 0x3F 16-bit words - * in a 4KiB GBE region, it should be equal - * to 0xBABA - */ -#define GBECHECKSUMTOTAL 0xBABA - -/* - * These will have a modified descriptor+gbe based on what's in the factory.rom - * These will be joined into a single 12KiB buffer (descriptor, then gbe) and saved to a file - * NOTE: The GBE region of 8K is actually 2x 4K regions in a single region; both 4K blocks can be identical (and by default, are) - * The 2nd one is a "backup", but we don't know when it's used. perhaps it's used when the checksum on the first one does not match? - */ - -/* - * --------------------------------------------------------------------- - * Gbe struct representing the data: - * --------------------------------------------------------------------- - */ - -struct GBEREGIONRECORD_4K { - unsigned char macAddress[6]; /* 0x03 words, or 0x06 bytes */ - unsigned char otherStuff[120]; /* 0x3c words, or 0x7E bytes */ - unsigned short checkSum; /* when added to the sum of all words above, this should match GBECHECKSUMTOTAL */ - unsigned char padding1[3968]; -}; - -/* main and backup region in gbe */ -struct GBEREGIONRECORD_8K { - struct GBEREGIONRECORD_4K main; - struct GBEREGIONRECORD_4K backup; - /* - * Backup region: - * This is actually "main" on X200, since the real main has a bad checksum - * and other errors. You should do what you need on this one (if modifying - * lenovobios's gbe region) and then copy to main - */ -}; - -/* - * --------------------------------------------------------------------- - * Function declarations (keep gcc/make happy. check them in gbe.c) - * --------------------------------------------------------------------- - */ - -unsigned short gbeGetRegionWordFrom8kBuffer(int index, char* regionData); -unsigned short gbeGetChecksumFrom8kBuffer(char* regionData, unsigned short desiredValue, int byteOffset); -unsigned short gbeGetChecksumFrom4kStruct(struct GBEREGIONRECORD_4K gbeStruct4k, unsigned short desiredValue); -struct GBEREGIONRECORD_8K deblobbedGbeStructFromFactory(struct GBEREGIONRECORD_8K factoryGbeStruct8k); -void printGbeChecksumDataFromStruct4k(struct GBEREGIONRECORD_4K gbeStruct4k, char* romName, char* regionName); -void printGbeChecksumDataFromStruct8k(struct GBEREGIONRECORD_8K gbeStruct8k, char* romName); - -#endif |