diff options
| author | Vadim Yanitskiy <axilirator@gmail.com> | 2018-03-02 21:24:57 +0700 |
|---|---|---|
| committer | Vadim Yanitskiy <axilirator@gmail.com> | 2018-03-02 21:24:57 +0700 |
| commit | c066787fd5e9696e4af0a43f7bd3fd9392de4931 (patch) | |
| tree | 551ded65f04e9e57b990a9865a7d073942dc3554 /src/host/trxcon/sched_lchan_tchf.c | |
| parent | ff233256e12b370db78af29d4b283ba5e19becfa (diff) | |
host/trxcon: use integer math for ToA (Timing of Arrival)
There's no need to express ToA value as a float. Let's 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.
Inspired by Idce4178e0b1f7e940ebc22b3e2f340fcd544d4ec.
Change-Id: I99c0f38db08a530d5846c474aba352aa0b68fe86
Diffstat (limited to 'src/host/trxcon/sched_lchan_tchf.c')
| -rw-r--r-- | src/host/trxcon/sched_lchan_tchf.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/host/trxcon/sched_lchan_tchf.c b/src/host/trxcon/sched_lchan_tchf.c index 45fa1c20..b023126a 100644 --- a/src/host/trxcon/sched_lchan_tchf.c +++ b/src/host/trxcon/sched_lchan_tchf.c @@ -46,7 +46,7 @@ int rx_tchf_fn(struct trx_instance *trx, struct trx_ts *ts, struct trx_lchan_state *lchan, uint32_t fn, uint8_t bid, - sbit_t *bits, int8_t rssi, float toa) + sbit_t *bits, int8_t rssi, int16_t toa256) { const struct trx_lchan_desc *lchan_desc; uint8_t rsl_cmode, tch_mode, mode; @@ -79,9 +79,9 @@ int rx_tchf_fn(struct trx_instance *trx, struct trx_ts *ts, /* Update mask and RSSI */ lchan->meas.rssi_sum += rssi; - lchan->meas.toa_sum += toa; + lchan->meas.toa256_sum += toa256; lchan->meas.rssi_num++; - lchan->meas.toa_num++; + lchan->meas.toa256_num++; /* Copy burst to end of buffer of 8 bursts */ offset = buffer + bid * 116 + 464; |