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author | Holger Hans Peter Freyther <zecke@selfish.org> | 2009-12-22 07:45:17 +0100 |
---|---|---|
committer | Holger Hans Peter Freyther <zecke@selfish.org> | 2009-12-22 07:45:17 +0100 |
commit | 92ffd926ef61b46a5cab9230a66b6fbb26bec613 (patch) | |
tree | f4577f53b255953041724c72852f6120faafe15c /openbsc/src/gsm_04_08_utils.c | |
parent | 24ff6ee0a343d46823771b9a86e867780eb2099b (diff) |
[gsm48] Move gsm48_parse_meas_rep to gsm_04_08_utils
Move the function over to the _utils side as handover
measurement is compiled into libbsc and we don't want
to end up with linking errors.
Diffstat (limited to 'openbsc/src/gsm_04_08_utils.c')
-rw-r--r-- | openbsc/src/gsm_04_08_utils.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/openbsc/src/gsm_04_08_utils.c b/openbsc/src/gsm_04_08_utils.c index 2cd571e24..2db46ca58 100644 --- a/openbsc/src/gsm_04_08_utils.c +++ b/openbsc/src/gsm_04_08_utils.c @@ -700,3 +700,72 @@ int gsm48_rx_rr_modif_ack(struct msgb *msg) rsl_ipacc_crcx(msg->lchan); return rc; } + +int gsm48_parse_meas_rep(struct gsm_meas_rep *rep, struct msgb *msg) +{ + struct gsm48_hdr *gh = msgb_l3(msg); + unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh); + u_int8_t *data = gh->data; + struct gsm_bts *bts = msg->lchan->ts->trx->bts; + struct bitvec *nbv = &bts->si_common.neigh_list; + + if (gh->msg_type != GSM48_MT_RR_MEAS_REP) + return -EINVAL; + + if (data[0] & 0x80) + rep->flags |= MEAS_REP_F_BA1; + if (data[0] & 0x40) + rep->flags |= MEAS_REP_F_UL_DTX; + if ((data[1] & 0x40) == 0x00) + rep->flags |= MEAS_REP_F_DL_VALID; + + rep->dl.full.rx_lev = data[0] & 0x3f; + rep->dl.sub.rx_lev = data[1] & 0x3f; + rep->dl.full.rx_qual = (data[3] >> 4) & 0x7; + rep->dl.sub.rx_qual = (data[3] >> 1) & 0x7; + + rep->num_cell = ((data[3] >> 6) & 0x3) | ((data[2] & 0x01) << 2); + if (rep->num_cell < 1 || rep->num_cell > 6) + return 0; + + /* an encoding nightmare in perfection */ + + rep->cell[0].rxlev = data[3] & 0x3f; + rep->cell[0].arfcn = bitvec_get_nth_set_bit(nbv, data[4] >> 2); + rep->cell[0].bsic = ((data[4] & 0x07) << 3) | (data[5] >> 5); + if (rep->num_cell < 2) + return 0; + + rep->cell[1].rxlev = ((data[5] & 0x1f) << 1) | (data[6] >> 7); + rep->cell[1].arfcn = bitvec_get_nth_set_bit(nbv, (data[6] >> 2) & 0x1f); + rep->cell[1].bsic = ((data[6] & 0x03) << 4) | (data[7] >> 4); + if (rep->num_cell < 3) + return 0; + + rep->cell[2].rxlev = ((data[7] & 0x0f) << 2) | (data[8] >> 6); + rep->cell[2].arfcn = bitvec_get_nth_set_bit(nbv, (data[8] >> 1) & 0x1f); + rep->cell[2].bsic = ((data[8] & 0x01) << 6) | (data[9] >> 3); + if (rep->num_cell < 4) + return 0; + + rep->cell[3].rxlev = ((data[9] & 0x07) << 3) | (data[10] >> 5); + rep->cell[3].arfcn = bitvec_get_nth_set_bit(nbv, data[10] & 0x1f); + rep->cell[3].bsic = data[11] >> 2; + if (rep->num_cell < 5) + return 0; + + rep->cell[4].rxlev = ((data[11] & 0x03) << 4) | (data[12] >> 4); + rep->cell[4].arfcn = bitvec_get_nth_set_bit(nbv, + ((data[12] & 0xf) << 1) | (data[13] >> 7)); + rep->cell[4].bsic = (data[13] >> 1) & 0x3f; + if (rep->num_cell < 6) + return 0; + + rep->cell[5].rxlev = ((data[13] & 0x01) << 5) | (data[14] >> 3); + rep->cell[5].arfcn = bitvec_get_nth_set_bit(nbv, + ((data[14] & 0x07) << 2) | (data[15] >> 6)); + rep->cell[5].bsic = data[15] & 0x3f; + + return 0; +} + |