Bring back rolo for mi4-based targets (H10 and Sansa).

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13550 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 1 insertions, 75 deletions

diff --git a/bootloader/main-pp.c b/bootloader/main-pp.c
index b95b7a10f4..49d7f0a2f7 100644
--- a/bootloader/main-pp.c
+++ b/bootloader/main-pp.c
@@ -31,6 +31,7 @@
 #include "ata.h"
 #include "button.h"
 #include "disk.h"
+#include "crc32-mi4.h"
 #include <string.h>
 #ifdef SANSA_E200
 #include "usb.h"
@@ -250,81 +251,6 @@ static int tea_find_key(struct mi4header_t *mi4header, int fd)
     
     return key_found;
 }
-        
-/*
- * We can't use the CRC32 implementation in the firmware library as it uses a
- * different polynomial. The polynomial needed is 0xEDB88320L
- *
- * CRC32 implementation taken from:
- *
- * efone - Distributed internet phone system.
- *
- * (c) 1999,2000 Krzysztof Dabrowski
- * (c) 1999,2000 ElysiuM deeZine
- *
- * 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
- * 2 of the License, or (at your option) any later version.
- *
- */
-
-/* based on implementation by Finn Yannick Jacobs */
-
-
-
-/* crc_tab[] -- this crcTable is being build by chksum_crc32GenTab().
- *		so make sure, you call it before using the other
- *		functions!
- */
-static unsigned int crc_tab[256];
-
-/* chksum_crc() -- to a given block, this one calculates the
- *				crc32-checksum until the length is
- *				reached. the crc32-checksum will be
- *				the result.
- */
-unsigned int chksum_crc32 (unsigned char *block, unsigned int length)
-{
-   register unsigned long crc;
-   unsigned long i;
-
-   crc = 0;
-   for (i = 0; i < length; i++)
-   {
-      crc = ((crc >> 8) & 0x00FFFFFF) ^ crc_tab[(crc ^ *block++) & 0xFF];
-   }
-   return (crc);
-}
-
-/* chksum_crc32gentab() --      to a global crc_tab[256], this one will
- *				calculate the crcTable for crc32-checksums.
- *				it is generated to the polynom [..]
- */
-
-static void chksum_crc32gentab (void)
-{
-   unsigned long crc, poly;
-   int i, j;
-
-   poly = 0xEDB88320L;
-   for (i = 0; i < 256; i++)
-   {
-      crc = i;
-      for (j = 8; j > 0; j--)
-      {
-	 if (crc & 1)
-	 {
-	    crc = (crc >> 1) ^ poly;
-	 }
-	 else
-	 {
-	    crc >>= 1;
-	 }
-      }
-      crc_tab[i] = crc;
-   }
-}
 
 
 /* Load mi4 format firmware image */