diff options
Diffstat (limited to 'src/hdlc.h')
| -rw-r--r-- | src/hdlc.h | 18 |
1 files changed, 17 insertions, 1 deletions
@@ -2,10 +2,26 @@ #include <osmocom/core/bits.h> +/* structure representing a HDLC decoder process */ struct hdlc_proc { + /* 8 bits history of most recently received bits */ ubit_t history[8]; + /* 8 bit buffer for assembling the next output byte */ ubit_t next_outbyte[8]; + /* number of bits currently in use in next_outbyte */ uint8_t num_bits; + + /* output buffer for re-aligned frame bytes */ + struct { + uint8_t buf[1024]; + unsigned int len; + } out; + + /* call-back ot be called at end of frame */ + void (*out_cb)(const uint8_t *data, unsigned int len, void *priv); + /* private data passed to out_cb */ + void *priv; }; -int process_raw_hdlc(struct hdlc_proc *hdlc, uint8_t *data, unsigned int len); +/* input given number of raw bits from the bit stream into HDLC */ +int process_raw_hdlc(struct hdlc_proc *hdlc, ubit_t *bits, unsigned int len); |