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authorBartlomiej Sieka <tur@semihalf.com>2008-04-22 12:27:56 +0200
committerWolfgang Denk <wd@denx.de>2008-04-25 00:01:06 +0200
commit215b01bba8bc662d35f72b084700b192d367dfb4 (patch)
tree339d9bea31b2cb37fc65c8b4c75e7597a11bba10 /include/u-boot/md5.h
parent8875e3abab986df930167ce5c1ac4f95dcacc81c (diff)
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Add support for calculating hashes with watchdog triggering
Implement watchodg-aware variants of hash calculation functions: - crc32_wd() - md5_wd() - sha1_csum_wd() The above functions calculate the hash of the input buffer in chunks, triggering the watchdog after processing each chunk. The chunk size is given as a function call parameter. Signed-off-by: Bartlomiej Sieka <tur@semihalf.com>
Diffstat (limited to 'include/u-boot/md5.h')
-rw-r--r--include/u-boot/md5.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/u-boot/md5.h b/include/u-boot/md5.h
index 046d1ee..8b44a7f 100644
--- a/include/u-boot/md5.h
+++ b/include/u-boot/md5.h
@@ -20,4 +20,12 @@ struct MD5Context {
*/
void md5 (unsigned char *input, int len, unsigned char output[16]);
+/*
+ * Calculate and store in 'output' the MD5 digest of 'len' bytes at 'input'.
+ * 'output' must have enough space to hold 16 bytes. If 'chunk' Trigger the
+ * watchdog every 'chunk_sz' bytes of input processed.
+ */
+void md5_wd (unsigned char *input, int len, unsigned char output[16],
+ unsigned int chunk_sz);
+
#endif /* _MD5_H */