v110.h

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#pragma once
 
#include <osmocom/core/bits.h>
 
/* See Section 5.1.2.1 of ITU-T V.110 */
#define MAX_D_BITS      48
#define MAX_E_BITS      7
#define MAX_S_BITS      9
#define MAX_X_BITS      2
 
struct osmo_v110_decoded_frame {
        ubit_t d_bits[MAX_D_BITS];
        ubit_t e_bits[MAX_E_BITS];
        ubit_t s_bits[MAX_S_BITS];
        ubit_t x_bits[MAX_X_BITS];
};
 
int osmo_v110_decode_frame(struct osmo_v110_decoded_frame *fr, const ubit_t *ra_bits, size_t n_bits);
int osmo_v110_encode_frame(ubit_t *ra_bits, size_t n_bits, const struct osmo_v110_decoded_frame *fr);
 
void osmo_v110_ubit_dump(FILE *outf, const ubit_t *fr, size_t in_len);
 
 
enum osmo_v100_sync_ra1_rate {
        OSMO_V110_SYNC_RA1_600,
        OSMO_V110_SYNC_RA1_1200,
        OSMO_V110_SYNC_RA1_2400,
        OSMO_V110_SYNC_RA1_4800,
        OSMO_V110_SYNC_RA1_7200,
        OSMO_V110_SYNC_RA1_9600,
        OSMO_V110_SYNC_RA1_12000,
        OSMO_V110_SYNC_RA1_14400,
        OSMO_V110_SYNC_RA1_19200,
        OSMO_V110_SYNC_RA1_24000,
        OSMO_V110_SYNC_RA1_28800,
        OSMO_V110_SYNC_RA1_38400,
        _NUM_OSMO_V110_SYNC_RA1
};
 
extern const ubit_t osmo_v110_e1e2e3[_NUM_OSMO_V110_SYNC_RA1][3];
 
#define osmo_v110_e1e2e3_set(e_bits, rate) \
        memcpy(e_bits, osmo_v110_e1e2e3[rate], 3)
#define osmo_v110_e1e2e3_cmp(e_bits, rate) \
        memcmp(e_bits, osmo_v110_e1e2e3[rate], 3)
 
int osmo_v110_sync_ra1_get_user_data_chunk_bitlen(enum osmo_v100_sync_ra1_rate rate);
int osmo_v110_sync_ra1_get_user_data_rate(enum osmo_v100_sync_ra1_rate rate);
int osmo_v110_sync_ra1_get_intermediate_rate(enum osmo_v100_sync_ra1_rate rate);
 
int osmo_v110_sync_ra1_user_to_ir(enum osmo_v100_sync_ra1_rate rate, struct osmo_v110_decoded_frame *fr,
                                  const ubit_t *d_in, size_t in_len);
 
int osmo_v110_sync_ra1_ir_to_user(enum osmo_v100_sync_ra1_rate rate, ubit_t *d_out, size_t out_len,
                                  const struct osmo_v110_decoded_frame *fr);