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authorFrancis Rowe <info@gluglug.org.uk>2014-12-25 15:20:54 (EST)
committer Francis Rowe <info@gluglug.org.uk>2014-12-25 15:20:54 (EST)
commit8141031b0bcb050ea57abc717ec0c5b14d95ee25 (patch)
tree2d55df4b2d3736cad8e9bae57a403520a59e5eee /resources/utilities/ich9deblob/common/common.c
parentaa5ab59846cd8fce7e78f67244b962fcbd19f175 (diff)
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ich9deblob: move 12k descriptor gbe file creation to new file
Diffstat (limited to 'resources/utilities/ich9deblob/common/common.c')
-rw-r--r--resources/utilities/ich9deblob/common/common.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/resources/utilities/ich9deblob/common/common.c b/resources/utilities/ich9deblob/common/common.c
new file mode 100644
index 0000000..cef5b3e
--- /dev/null
+++ b/resources/utilities/ich9deblob/common/common.c
@@ -0,0 +1,70 @@
+/*
+ * common.c
+ * This file is part of the ich9deblob utility from the libreboot project
+ *
+ * Purpose: common functions/methods 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 <stdio.h>
+#include <string.h>
+#include "common.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;
+}