CRC32 Support
File: csp/csp_crc32.h
Description: CRC32 support.
Interface Functions
-
int csp_crc32_append(csp_packet_t *packet)
[source] Append CRC32 checksum to packet
- Parameters:
packet – CSP packet, must be valid.
- Returns:
#CSP_ERR_NONE on success, otherwise an error code.
-
int csp_crc32_verify(csp_packet_t *packet)
[source] Verify CRC32 checksum on packet.
- Parameters:
packet – CSP packet, must be valid.
- Returns:
#CSP_ERR_NONE on success, otherwise an error code.
-
uint32_t csp_crc32_memory(const void *addr, uint32_t length)
[source] Calculate checksum for a given memory area.
- Parameters:
addr – memory address
length – length of memory to do checksum on
- Returns:
checksum
-
void csp_crc32_init(csp_crc32_t *crc)
[source] Initialize the CRC32 object prior to calculating checksum.
- Parameters:
crc – CRC32 object previously created by the caller
-
void csp_crc32_update(csp_crc32_t *crc, const void *data, uint32_t length)
[source] Update the CRC32 calculation with a chunk of data
- Parameters:
crc – CRC32 object previously created, and init’ed by the caller
data – pointer to data for which to update checksum on
length – number of bytes in the array pointed to by data