ich9deblob: move 12k descriptor gbe file creation to new file

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;
+}