diff options
| author | Harald Welte <laforge@gnumonks.org> | 2018-02-19 14:21:36 +0100 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2018-02-27 19:58:20 +0100 |
| commit | d5bbd8ccf79eaf13bc23cc71accbeb3ff638b6dd (patch) | |
| tree | 0f1ec34ad152ac9e7933724b35a8d342e8be2abe /src/osmo-bts-trx/l1_if.h | |
| parent | b3a2a3e24f44adcc6660d33cc9684a8f24271e2e (diff) | |
trx/scheduler: Use integer math for TOA (Timing of Arrival)
There's no need to express TOA as a float:
* We receive it as signed 16bit integer in units 1/256 symbol periods
* We pass it to L1SAP as signed integer in 1/4 symbol periods
So turn it into an int16_t with 1/256 symbol period accuracy throughout
the code to avoid both float arithmetic as well as loosing any precision.
Change-Id: Idce4178e0b1f7e940ebc22b3e2f340fcd544d4ec
Diffstat (limited to 'src/osmo-bts-trx/l1_if.h')
| -rw-r--r-- | src/osmo-bts-trx/l1_if.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/osmo-bts-trx/l1_if.h b/src/osmo-bts-trx/l1_if.h index 1974efcc..77c5936c 100644 --- a/src/osmo-bts-trx/l1_if.h +++ b/src/osmo-bts-trx/l1_if.h @@ -69,7 +69,7 @@ int l1if_provision_transceiver_trx(struct trx_l1h *l1h); int l1if_provision_transceiver(struct gsm_bts *bts); int l1if_mph_time_ind(struct gsm_bts *bts, uint32_t fn); int l1if_process_meas_res(struct gsm_bts_trx *trx, uint8_t tn, uint32_t fn, uint8_t chan_nr, - int n_errors, int n_bits_total, float rssi, float toa); + int n_errors, int n_bits_total, float rssi, int16_t toa256); static inline struct l1sched_trx *trx_l1sched_hdl(struct gsm_bts_trx *trx) { |