Review at https://gerrit.osmocom.org/179
dyn PDCH: Fix free slot search for chan_alloc_reverse == true
For chan_alloc_reverse, _lc_find_trx() should return the last free slot instead of the first.
Original patch by jolly, but split in two by nhofmeyr.
Change-Id: Ie919bfcaabab5286cbbbb1dbda0c140c62289503 --- M openbsc/src/libbsc/chan_alloc.c 1 file changed, 14 insertions(+), 2 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/openbsc refs/changes/79/179/1
diff --git a/openbsc/src/libbsc/chan_alloc.c b/openbsc/src/libbsc/chan_alloc.c index de9da81..8600846 100644 --- a/openbsc/src/libbsc/chan_alloc.c +++ b/openbsc/src/libbsc/chan_alloc.c @@ -75,12 +75,24 @@ _lc_find_trx(struct gsm_bts_trx *trx, enum gsm_phys_chan_config pchan) { struct gsm_bts_trx_ts *ts; - int j, ss; + int j, start, stop, dir, ss;
if (!trx_is_usable(trx)) return NULL;
- for (j = 0; j < 8; j++) { + if (trx->bts->chan_alloc_reverse) { + /* check TS 7..0 */ + start = 7; + stop = -1; + dir = -1; + } else { + /* check TS 0..7 */ + start = 0; + stop = 8; + dir = 1; + } + + for (j = start; j != stop; j += dir) { ts = &trx->ts[j]; if (!ts_is_usable(ts)) continue;