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authorMaurus Cuelenaere <mcuelenaere@gmail.com>2008-04-09 11:53:28 +0000
committerMaurus Cuelenaere <mcuelenaere@gmail.com>2008-04-09 11:53:28 +0000
commite810721e72d0d70d87b02603299d50809b794470 (patch)
tree19cc6a608e064abd6361493bb5cfa7589c531bba /tools/creative.c
parent5a3651bf940001693153ab52a67c9cd87e7d41c7 (diff)
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First commit:
* add Creative (ZVM, 60GB, ZV, ZVW, ZENV) support to scramble * update configure to the correct values git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17042 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'tools/creative.c')
-rw-r--r--tools/creative.c159
1 files changed, 159 insertions, 0 deletions
diff --git a/tools/creative.c b/tools/creative.c
new file mode 100644
index 0000000000..5dc65ab992
--- /dev/null
+++ b/tools/creative.c
@@ -0,0 +1,159 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ *
+ * Copyright (C) 2008 by Maurus Cuelenaere
+ *
+ * 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 "creative.h"
+#include "hmac-sha1.h"
+#include <stdio.h>
+#include <stdbool.h>
+
+/*
+Create a Zen Vision:M FRESCUE structure file
+*/
+
+
+static int make_ciff_file(char *inbuf, int length, char *outbuf, int device)
+{
+ memcpy(outbuf, "FFIC", 4);
+ int2le(length+90, &outbuf[4]);
+ memcpy(&outbuf[8], "FNIC", 4);
+ int2le(96, &outbuf[0xC]);
+ memcpy(&outbuf[0x10], devices[device].cinf, devices[device].cinf_size);
+ memset(&outbuf[0x10+devices[device].cinf_size], 0, 96 - devices[device].cinf_size);
+ memcpy(&outbuf[0x70], "ATAD", 4);
+ int2le(length+32, &outbuf[0x74]);
+ memcpy(&outbuf[0x78], "H\0j\0u\0k\0e\0b\0o\0x\0\x32\0.\0j\0r\0m", 32); /*Unicode encoded*/
+ memcpy(&outbuf[0x98], inbuf, length);
+ memcpy(&outbuf[0x98+length], "LLUN", 4);
+ int2le(20, &outbuf[0x98+length+4]);
+ /* Do checksum */
+ char key[20];
+ hmac_sha((char*)devices[device].null, strlen(devices[device].null), outbuf, 0x98+length, key, 20);
+ memcpy(&outbuf[0x98+length+8], key, 20);
+ return length+0x90+0x1C+8;
+}
+
+static int make_jrm_file(char *inbuf, int length, char *outbuf)
+{
+ int i;
+ unsigned int sum = 0;
+ /* Calculate checksum for later use in header */
+ for(i=0; i<length; i+= 4)
+ sum += le2int(&inbuf[i]) + (le2int(&inbuf[i])>>16);
+
+ /* Clear the header area to zero */
+ memset(outbuf, 0, 0x18);
+
+ /* Header (EDOC) */
+ memcpy(outbuf, "EDOC", 4);
+ /* Total Size */
+ int2le(length+0x20, &outbuf[0x4]);
+ /* 4 bytes of zero */
+
+ /* Address = 0x900000 */
+ int2le(0x900000, &outbuf[0xC]);
+ /* Size */
+ int2le(length, &outbuf[0x10]);
+ /* Checksum */
+ int2le(sum, &outbuf[0x14]);
+ outbuf[0x16] = 0;
+ outbuf[0x17] = 0;
+ /* Data starts here... */
+ memcpy(&outbuf[0x18], inbuf, length);
+
+ /* Second block starts here ... */
+ /* Address = 0x0 */
+ /* Size */
+ int2le(0x4, &outbuf[0x18+length+0x4]);
+ /* Checksum */
+ outbuf[0x18+length+0x8] = 0xA9;
+ outbuf[0x18+length+0x9] = 0xD9;
+ /* Data: MOV PC, 0x900000 */
+ outbuf[0x18+length+0xC] = 0x09;
+ outbuf[0x18+length+0xD] = 0xF6;
+ outbuf[0x18+length+0xE] = 0xA0;
+ outbuf[0x18+length+0xF] = 0xE3;
+
+ return length+0x18+0x10;
+}
+
+int zvm_encode(char *iname, char *oname, int device)
+{
+ size_t len;
+ int length;
+ FILE *file;
+ unsigned char *outbuf;
+ unsigned char *buf;
+ int i;
+
+ file = fopen(iname, "rb");
+ if (!file) {
+ perror(iname);
+ return -1;
+ }
+ fseek(file, 0, SEEK_END);
+ length = ftell(file);
+
+ fseek(file, 0, SEEK_SET);
+
+ buf = (unsigned char*)malloc(length);
+ if ( !buf ) {
+ printf("out of memory!\n");
+ return -1;
+ }
+
+ len = fread(buf, 1, length, file);
+ if(len < length) {
+ perror(iname);
+ return -2;
+ }
+ fclose(file);
+
+ outbuf = (unsigned char*)malloc(length+0x300);
+ if ( !outbuf ) {
+ free(buf);
+ printf("out of memory!\n");
+ return -1;
+ }
+ length = make_jrm_file(buf, len, outbuf);
+ free(buf);
+ buf = (unsigned char*)malloc(length+0x200);
+ memset(buf, 0, length+0x200);
+ length = make_ciff_file(outbuf, length, buf, device);
+ free(outbuf);
+
+ file = fopen(oname, "wb");
+ if (!file) {
+ free(buf);
+ perror(oname);
+ return -3;
+ }
+
+ len = fwrite(buf, 1, length, file);
+ if(len < length) {
+ free(buf);
+ perror(oname);
+ return -4;
+ }
+
+ free(buf);
+
+ fclose(file);
+
+ return 0;
+}