-ao_fec_prepare(uint8_t *in, uint8_t len, uint8_t *out);
-
-/*
- * Whiten data using the cc1111 PN9 sequence. 'out'
- * must be 'len' bytes long. 'out' and 'in' can be
- * the same array
- */
-void
-ao_fec_whiten(uint8_t *in, uint8_t len, uint8_t *out);
-
-/*
- * 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);