On Thu, 29 Aug 2024 at 16:02, Simon Glass sjg@chromium.org wrote:
Add an entry for crc8, with watchdog handling.
What's the watchdog handling do? What's this used for?
Looking at the use of crc8 it's minimally used.
Signed-off-by: Simon Glass sjg@chromium.org
common/hash.c | 8 ++++++++ include/u-boot/crc.h | 3 +++ lib/crc8.c | 6 ++++++ 3 files changed, 17 insertions(+)
diff --git a/common/hash.c b/common/hash.c index ac63803fed9..43c4e185750 100644 --- a/common/hash.c +++ b/common/hash.c @@ -304,6 +304,14 @@ static struct hash_algo hash_algo[] = { .hash_update = hash_update_crc16_ccitt, .hash_finish = hash_finish_crc16_ccitt, }, +#if CONFIG_IS_ENABLED(CRC8)
{.name = "crc8",.digest_size = 1,.chunk_size = CHUNKSZ_CRC32,.hash_func_ws = crc8_wd_buf,},+#endif #if CONFIG_IS_ENABLED(CRC32) { .name = "crc32", diff --git a/include/u-boot/crc.h b/include/u-boot/crc.h index 5174bd7ac41..b2badaf6a97 100644 --- a/include/u-boot/crc.h +++ b/include/u-boot/crc.h @@ -25,6 +25,9 @@ */ unsigned int crc8(unsigned int crc_start, const unsigned char *vptr, int len);
+void crc8_wd_buf(const unsigned char *input, unsigned int len,
unsigned char output[1], unsigned int chunk_sz);/* lib/crc16.c - 16 bit CRC with polynomial x^16 + x^15 + x^2 + 1 */ uint16_t crc16(uint16_t crc, const unsigned char *buffer, size_t len);
diff --git a/lib/crc8.c b/lib/crc8.c index 20d46d16147..811e19917b4 100644 --- a/lib/crc8.c +++ b/lib/crc8.c @@ -32,3 +32,9 @@ unsigned int crc8(unsigned int crc, const unsigned char *vptr, int len)
return crc;}
+void crc8_wd_buf(const unsigned char *input, unsigned int len,
unsigned char output[1], unsigned int chunk_sz)+{
*output = crc8(0, input, len);+}
2.34.1