add Gigabeat support to the scramble tools

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10817 a1c6a512-1295-4272-9138-f99709370657

tools/Makefile

@@ -10,17 +10,18 @@ CFLAGS := -O -ansi -g
 LDFLAGS := -g
 
 CLEANALL := scramble descramble iriver sh2d bmp2rb rdf2binary convbdf	\
- generate_rocklatin mkboot ipod_fw codepages uclpack mi4
+ generate_rocklatin mkboot ipod_fw codepages uclpack mi4 gigabeat
 
 all:
 	@echo "Run make in your build directory!"
 
-scramble: scramble.o iriver.o mi4.o
-descramble: descramble.o iriver.o
+scramble: scramble.o iriver.o mi4.o gigabeat.o
+descramble: descramble.o iriver.o gigabeat.o
 
-scramble.o: scramble.c iriver.h
-descramble.o: descramble.c iriver.h
+scramble.o: scramble.c iriver.h mi4.h gigabeat.h
+descramble.o: descramble.c iriver.h gigabeat.h
 iriver.o: iriver.c iriver.h
+gigabeat.o: gigabeat.c gigabeat.h
 mi4.o: mi4.c mi4.h
 
 sh2d: sh2d.c

tools/configure

@@ -454,7 +454,8 @@ EOF
   iriverbitmaptools="$toolset scramble descramble mkboot bmp2rb codepages"
   iaudiobitmaptools="$toolset scramble descramble mkboot bmp2rb codepages"
   ipodbitmaptools="$toolset scramble ipod_fw bmp2rb codepages"
-  # generic is used by Gigabeat, IFP, H10, Sansa-e200
+  gigabeatbitmaptools="$toolset scramble descramble bmp2rb codepages"
+  # generic is used by IFP, H10, Sansa-e200
   genericbitmaptools="$toolset bmp2rb codepages"
 
 
@@ -892,7 +893,7 @@ EOF
     flash=""
     plugins="yes"
     codecs="libmad liba52 libffmpegFLAC libTremor libwavpack dumb libmusepack libalac libfaad libm4a"
-    toolset=$genericbitmaptools
+    toolset=$gigabeatbitmaptools
     # architecture, manufacturer and model for the target-tree build
     t_cpu="arm"
     t_manufacturer="gigabeat"

tools/descramble.c

@@ -22,6 +22,7 @@
 #include <string.h>
 
 #include "iriver.h"
+#include "gigabeat.h"
 
 int iaudio_decode(char *iname, char *oname);
 
@@ -33,6 +34,7 @@ void usage(void)
            "\t-v2     Archos V2 recorder format\n"
            "\t-mm=X   Archos Multimedia format (X values: A=JBMM, B=AV1xx, C=AV3xx)\n"
            "\t-iriver iRiver format\n"
+           "\t-gigabeat Toshiba Gigabeat format\n"
            "\t-iaudio iAudio format\n"
           "\nNo option assumes Archos standard player/recorder format.\n");
     exit(1);
@@ -73,6 +75,12 @@ int main (int argc, char** argv)
         iriver_decode(iname, oname, FALSE, STRIP_NONE);
         return 0;
     }
+    if(!strcmp(argv[1], "-gigabeat")) {
+        iname = argv[2];
+        oname = argv[3];
+        gigabeat_code(iname, oname);
+        return 0;
+    }
     
     if(!strcmp(argv[1], "-iaudio")) {
         iname = argv[2];

tools/gigabeat.c

@@ -0,0 +1,76 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 by Christian Hack
+ *
+ * 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>
+
+static FILE * openinfile( const char * filename )
+{
+    FILE * F = fopen( filename, "rb" );
+    if( F == NULL )
+    {
+        fprintf( stderr, "Couldn't open input file %s\n", filename );
+        perror( "Error was " );
+        exit( -1 );
+    };
+    return F;
+};
+
+static FILE * openoutfile( const char * filename )
+{
+    FILE * F = fopen( filename, "wb" );
+    if( F == NULL )
+    {
+        fprintf( stderr, "Couldn't open output file %s\n", filename );
+        perror( "Error was " );
+        exit( -1 );
+    };
+    return F;
+};
+
+int gigabeat_code(char *infile, char *outfile)
+{
+    FILE *in, *out;
+    unsigned long size = 0;
+    unsigned long bytes_read;
+    unsigned long data;
+    unsigned long key = 0x19751217;
+
+    in = openinfile(infile);
+    out = openoutfile(outfile);
+
+    while (!feof(in)) {
+        bytes_read = fread(&data, 1, 4, in);
+
+        data = data ^ key;
+
+        key = key + (key << 1);
+        key = key + 0x19751217;
+
+        size += bytes_read;
+
+        fwrite(&data, 1, bytes_read, out);
+    }
+
+    fprintf(stderr, "File processed successfully\n" );
+
+    fclose(in);
+    fclose(out);
+    return(0);
+}

tools/gigabeat.h

@@ -0,0 +1,20 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 by Marcoen Hirschberg
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+int gigabeat_code(char *infile, char *outfile);

tools/scramble.c

@@ -22,6 +22,7 @@
 #include <stdbool.h>
 #include <string.h>
 #include "iriver.h"
+#include "gigabeat.h"
 #include "mi4.h"
 
 int iaudio_encode(char *iname, char *oname, char *idstring);
@@ -83,6 +84,7 @@ void usage(void)
            "\t-ipod3g ipod firmware partition format (3rd Gen)\n"
            "\t-ipod4g ipod firmware partition format (4th Gen, Mini, Nano, Photo/Color)\n"
            "\t-ipod5g ipod firmware partition format (5th Gen - aka Video)\n"
+           "\t-gigabeat Toshiba Gigabeat format\n"
            "\t-mi4v2  PortalPlayer .mi4 format (revision 010201)\n"
            "\t-mi4v3  PortalPlayer .mi4 format (revision 010301)\n"
            "\t-add=X  Rockbox generic \"add-up\" checksum format\n"
@@ -219,6 +221,13 @@ int main (int argc, char** argv)
         iriver_encode(iname, oname, FALSE);
         return 0;
     }
+    else if(!strcmp(argv[1], "-gigabeat")) {
+        /* iRiver code dealt with in the iriver.c code */
+        iname = argv[2];
+        oname = argv[3];
+        gigabeat_code(iname, oname);
+        return 0;
+    }
     else if(!strcmp(argv[1], "-iaudiox5")) {
         iname = argv[2];
         oname = argv[3];