Added the 'mkneofile' tool that is used instead of scramble when making the

Neo firmware image. The Open Neo project used to call this tool 'add_header'.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4136 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 112 insertions, 0 deletions

diff --git a/tools/mkneofile.c b/tools/mkneofile.c
new file mode 100644
index 0000000000..93e0d45043
--- /dev/null
+++ b/tools/mkneofile.c
@@ -0,0 +1,112 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2003 by Open Neo
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include <stdio.h>
+#include <stdlib.h>
+
+#define MY_FIRMWARE_TYPE "Rockbox"
+#define MY_HEADER_VERSION 1
+
+int main (int argc, char** argv)
+{
+    unsigned long length,i,slen;
+    unsigned char *inbuf;
+    unsigned short checksum=0;
+    unsigned char *iname = argv[1];
+    unsigned char *oname = argv[2];
+    unsigned char header[17];
+    FILE* file;
+
+    if (argc < 3) {
+       printf("usage: %s <input file> <output file>\n",argv[0]);
+       return -1;
+    }
+
+    /* open file */
+    file = fopen(iname,"rb");
+    if (!file) {
+       perror(iname);
+       return -1;
+    }
+    fseek(file,0,SEEK_END);
+    length = ftell(file);
+    length = (length + 3) & ~3; /* Round up to nearest 4 byte boundary */
+    
+    if (length >= 0x32000) {
+        printf("error: max firmware size is 200KB!\n");
+        fclose(file);
+        return -1;
+    }
+    
+    fseek(file,0,SEEK_SET); 
+    inbuf = malloc(length);
+    if ( !inbuf ) {
+       printf("out of memory!\n");
+       return -1;
+    }
+
+    /* read file */
+    i=fread(inbuf,1,length,file);
+    if ( !i ) {
+       perror(iname);
+       return -1;
+    }
+    fclose(file);
+
+    /* calculate checksum */
+    for (i=0;i<length;i++)
+       checksum+=inbuf[i];
+
+    /* make header */
+    memset(header, 0, sizeof(header));
+    strncpy(header,MY_FIRMWARE_TYPE,9);
+    header[9]='\0'; /*shouldn't have to, but to be SURE */
+    header[10]=MY_HEADER_VERSION&0xFF;
+    header[11]=(checksum>>8)&0xFF;
+    header[12]=checksum&0xFF;
+    header[13]=(sizeof(header)>>24)&0xFF;
+    header[14]=(sizeof(header)>>16)&0xFF;
+    header[15]=(sizeof(header)>>8)&0xFF;
+    header[16]=sizeof(header)&0xFF;
+
+    /* write file */
+    file = fopen(oname,"wb");
+    if ( !file ) {
+       perror(oname);
+       return -1;
+    }
+    if ( !fwrite(header,sizeof(header),1,file) ) {
+       perror(oname);
+       return -1;
+    }
+    if ( !fwrite(inbuf,length,1,file) ) {
+       perror(oname);
+       return -1;
+    }
+    fclose(file);
+    
+    free(inbuf);
+
+    printf("\r\nHeader Info:\r\n\t"
+           "Header Type:\t\t%s\r\n\t"
+           "Header Version:\t\t%d\r\n\t"
+           "Header Checksum:\t0x%x\r\n\t"
+           "Data Start:\t\t0x%x\r\n\r\n",
+           header,header[10],checksum,sizeof(header));
+    return 0;
+}