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authorJames Buren <braewoods+rb@braewoods.net>2021-06-21 09:36:54 +0000
committerJames Buren <braewoods+rb@braewoods.net>2021-06-21 09:36:54 +0000
commit581081a3df072833ab22a58af574992820c2ae8f (patch)
tree741a88ef6978b85f62468146ffbcb948a4341139 /bootloader/main-pp.c
parentfc9208108052440ccde79b6cd33e3598e8fb7c26 (diff)
mi4: replace chksum_crc32 with crc_32r
This uses an equivalent algorithm but with a different initial value than we normally use (all bits off vs all bits on). Use the new crc_32r to replace the original MI4 crc32 implementation. This frees up some extra space on mi4 targets which gives us more room on a few very space constrained targets (sansa c200/e200, etc). Change-Id: Iaaac3ae353b30566156b1404cbf31ca32926203d
Diffstat (limited to 'bootloader/main-pp.c')
-rw-r--r--bootloader/main-pp.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/bootloader/main-pp.c b/bootloader/main-pp.c
index ef766455b6..08b5ea3ef5 100644
--- a/bootloader/main-pp.c
+++ b/bootloader/main-pp.c
@@ -37,7 +37,7 @@
#include "adc.h"
#include "button.h"
#include "disk.h"
-#include "crc32-mi4.h"
+#include "crc32.h"
#include "mi4-loader.h"
#include "loader_strerror.h"
#include <string.h>
@@ -169,7 +169,7 @@ int load_mi4_part(unsigned char* buf, struct partinfo* pinfo,
(mi4header.mi4size-MI4_HEADER_SIZE)/512, buf);
/* Check CRC32 to see if we have a valid file */
- sum = chksum_crc32 (buf,mi4header.mi4size-MI4_HEADER_SIZE);
+ sum = crc_32r (buf,mi4header.mi4size-MI4_HEADER_SIZE,0);
printf("Calculated CRC32: %x", sum);