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-rw-r--r--resources/utilities/ich9deblob/gbe/gbe.c124
-rw-r--r--resources/utilities/ich9deblob/gbe/gbe.h101
2 files changed, 0 insertions, 225 deletions
diff --git a/resources/utilities/ich9deblob/gbe/gbe.c b/resources/utilities/ich9deblob/gbe/gbe.c
deleted file mode 100644
index 9eee828..0000000
--- a/resources/utilities/ich9deblob/gbe/gbe.c
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * gbe/gbe.c
- * 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/>.
- */
-
-/*
- * Provide gbe related functions.
- */
-
-/* structs describing the data from gbe region */
-#include "gbe.h"
-
-/*
- * ---------------------------------------------------------------------
- * Gbe functions:
- * ---------------------------------------------------------------------
- */
-
-/* Read a 16-bit unsigned int from a supplied region buffer */
-unsigned short gbeGetRegionWordFrom8kBuffer(int index, char* regionData)
-{
- return *((unsigned short*)(regionData + (index * 2)));
-}
-
-/*
- * gbe checksum calculation (algorithm based on datasheet)
- */
-unsigned short gbeGetChecksumFrom8kBuffer(char* regionData, unsigned short desiredValue, int byteOffset)
-{
- int i;
-
- /*
- * byteOffset defines the byte address where the gbe begins in the buffer "regionData".
- * However, this function works with 16-bit words. Shift the byte offset to the right for the word (16-bit) offset.
- */
- int wordOffset = byteOffset >> 1;
-
- unsigned short regionWord; /* store words here for adding to checksum */
- unsigned short checksum = 0; /* this gbe's checksum */
-
- for (i = 0; i < 0x3F; i++) {
- regionWord = gbeGetRegionWordFrom8kBuffer(i+wordOffset, regionData);
- checksum += regionWord;
- }
- checksum = desiredValue - checksum;
- return checksum;
-}
-
-/* checksum calculation for 4k gbe struct (algorithm based on datasheet) */
-unsigned short gbeGetChecksumFrom4kStruct(struct GBEREGIONRECORD_4K gbeStruct4k, unsigned short desiredValue)
-{
- char gbeBuffer4k[GBEREGIONSIZE_4K];
- memcpy(&gbeBuffer4k, &gbeStruct4k, GBEREGIONSIZE_4K);
- return gbeGetChecksumFrom8kBuffer(gbeBuffer4k, desiredValue, 0);
-}
-
-/* modify the gbe region extracted from a factory.rom dump */
-struct GBEREGIONRECORD_8K deblobbedGbeStructFromFactory(struct GBEREGIONRECORD_8K factoryGbeStruct8k)
-{
- /*
- * Correct the main gbe region. By default, the X200 (as shipped from Lenovo) comes
- * with a broken main gbe region, where the backup gbe region is used instead. Modify
- * it so that the main region is usable.
- */
-
- struct GBEREGIONRECORD_8K deblobbedGbeStruct8k;
- memcpy(&deblobbedGbeStruct8k, &factoryGbeStruct8k, GBEREGIONSIZE_8K);
-
- deblobbedGbeStruct8k.backup.checkSum = gbeGetChecksumFrom4kStruct(deblobbedGbeStruct8k.backup, GBECHECKSUMTOTAL);
- memcpy(&deblobbedGbeStruct8k.main, &deblobbedGbeStruct8k.backup, GBEREGIONSIZE_4K);
-
- return deblobbedGbeStruct8k;
-}
-
-/*
- * ---------------------------------------------------------------------
- * Debugging functions:
- * ---------------------------------------------------------------------
- */
-
-/*
- * show debugging info: show calculated (correct) gbe checksum and what
- * is actually stored, in a 4K gbe struct. Only for a single region.
- */
-void printGbeChecksumDataFromStruct4k(struct GBEREGIONRECORD_4K gbeStruct4k, char* romName, char* regionName)
-{
- printf(
- "%s Gbe (%s): calculated Gbe checksum: 0x%hx and actual GBe checksum: 0x%hx\n",
- romName,
- regionName,
- gbeGetChecksumFrom4kStruct(gbeStruct4k, GBECHECKSUMTOTAL),
- gbeStruct4k.checkSum
- );
-
- return;
-}
-
-/*
- * show debugging info: show calculated (correct) gbe checksum and what
- * is actually stored, in a 8K gbe struct. Do so for main and backup regions.
- */
-void printGbeChecksumDataFromStruct8k(struct GBEREGIONRECORD_8K gbeStruct8k, char* romName)
-{
- printGbeChecksumDataFromStruct4k(gbeStruct8k.main, romName, "main");
- printGbeChecksumDataFromStruct4k(gbeStruct8k.backup, romName, "backup");
-
- return;
-}
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