diff options
Diffstat (limited to 'src/core/ao_fec.h')
| -rw-r--r-- | src/core/ao_fec.h | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/src/core/ao_fec.h b/src/core/ao_fec.h index d4f64b74..f3f55fa8 100644 --- a/src/core/ao_fec.h +++ b/src/core/ao_fec.h @@ -24,13 +24,23 @@ #define AO_FEC_TRELLIS_TERMINATOR 0x0b #define AO_FEC_PREPARE_EXTRA 4 +extern const uint8_t ao_fec_whiten_table[]; + void -ao_fec_dump_bytes(uint8_t *bytes, uint8_t len, char *name); +ao_fec_dump_bytes(uint8_t *bytes, uint16_t len, char *name); uint16_t ao_fec_crc(uint8_t *bytes, uint8_t len); /* + * 'len' is the length of the original data; 'bytes' + * must be four bytes longer than that, and the first + * two after 'len' must be the received crc + */ +uint8_t +ao_fec_check_crc(uint8_t *bytes, uint8_t len); + +/* * Append CRC and terminator bytes, returns resulting length. * 'out' must be at least len + AO_FEC_PREPARE_EXTRA bytes long */ @@ -46,18 +56,12 @@ void ao_fec_whiten(uint8_t *in, uint8_t len, uint8_t *out); /* - * Encode data. 'out' must be len*2 bytes long + * Encode and interleave data. 'out' must be len*2 bytes long */ uint8_t ao_fec_encode(uint8_t *in, uint8_t len, uint8_t *out); /* - * Interleave data. 'out' must be 'len' bytes long - */ -uint8_t -ao_fec_interleave(uint8_t *in, uint8_t len, uint8_t *out); - -/* * Decode data. 'in' is one byte per bit, soft decision * 'out' must be len/8 bytes long */ @@ -65,4 +69,10 @@ ao_fec_interleave(uint8_t *in, uint8_t len, uint8_t *out); uint8_t ao_fec_decode(uint8_t *in, uint16_t in_len, uint8_t *out); +/* + * Interleave data packed in bytes. 'out' must be 'len' bytes long. + */ +uint16_t +ao_fec_interleave_bytes(uint8_t *in, uint16_t len, uint8_t *out); + #endif /* _AO_FEC_H_ */ |