diff options
| -rw-r--r-- | include/osmo-bts/scheduler.h | 3 | ||||
| -rw-r--r-- | src/common/scheduler.c | 40 |
2 files changed, 43 insertions, 0 deletions
diff --git a/include/osmo-bts/scheduler.h b/include/osmo-bts/scheduler.h index 9dbc9461..11a30fd4 100644 --- a/include/osmo-bts/scheduler.h +++ b/include/osmo-bts/scheduler.h @@ -188,4 +188,7 @@ int trx_sched_set_cipher(struct l1sched_trx *l1t, uint8_t chan_nr, int downlink, /* \brief close all logical channels and reset timeslots */ void trx_sched_reset(struct l1sched_trx *l1t); +/*! Determine if given frame number contains SACCH (true) or other (false) burst */ +bool trx_sched_is_sacch_fn(struct gsm_bts_trx_ts *ts, uint32_t fn, bool uplink); + #endif /* TRX_SCHEDULER_H */ diff --git a/src/common/scheduler.c b/src/common/scheduler.c index 41b5d7af..4e48160b 100644 --- a/src/common/scheduler.c +++ b/src/common/scheduler.c @@ -1340,6 +1340,46 @@ static int find_sched_mframe_idx(enum gsm_phys_chan_config pchan, uint8_t tn) return -1; } +/* Determine if given frame number contains SACCH (true) or other (false) burst */ +bool trx_sched_is_sacch_fn(struct gsm_bts_trx_ts *ts, uint32_t fn, bool uplink) +{ + int i; + const struct trx_sched_multiframe *sched; + const struct trx_sched_frame *frame; + enum trx_chan_type ch_type; + + i = find_sched_mframe_idx(ts->pchan, ts->nr); + if (i < 0) + return -EINVAL; + sched = &trx_sched_multiframes[i]; + frame = &sched->frames[fn % sched->period]; + if (uplink) + ch_type = frame->ul_chan; + else + ch_type = frame->dl_chan; + + switch (ch_type) { + case TRXC_SACCH4_0: + case TRXC_SACCH4_1: + case TRXC_SACCH4_2: + case TRXC_SACCH4_3: + case TRXC_SACCH8_0: + case TRXC_SACCH8_1: + case TRXC_SACCH8_2: + case TRXC_SACCH8_3: + case TRXC_SACCH8_4: + case TRXC_SACCH8_5: + case TRXC_SACCH8_6: + case TRXC_SACCH8_7: + case TRXC_SACCHTF: + case TRXC_SACCHTH_0: + case TRXC_SACCHTH_1: + return true; + default: + return false; + } +} + /* set multiframe scheduler to given pchan */ int trx_sched_set_pchan(struct l1sched_trx *l1t, uint8_t tn, enum gsm_phys_chan_config pchan) |