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when channel allocator operates in reverse order, prefer SDCCH/8 over SDCCH/4

This commit is contained in:
Harald Welte 2009-08-10 14:44:24 +02:00
parent 9c31b5eeca
commit 65676fe73f
1 changed files with 11 additions and 2 deletions
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13
openbsc/src/chan_alloc.c
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@ -182,12 +182,21 @@ _lc_find_bts(struct gsm_bts *bts, enum gsm_phys_chan_config pchan)
struct gsm_lchan *lchan_alloc(struct gsm_bts *bts, enum gsm_chan_t type)
{
struct gsm_lchan *lchan = NULL;
enum gsm_phys_chan_config first, second;
switch (type) {
case GSM_LCHAN_SDCCH:
lchan = _lc_find_bts(bts, GSM_PCHAN_CCCH_SDCCH4);
if (bts->chan_alloc_reverse) {
first = GSM_PCHAN_SDCCH8_SACCH8C;
second = GSM_PCHAN_CCCH_SDCCH4;
} else {
first = GSM_PCHAN_CCCH_SDCCH4;
second = GSM_PCHAN_SDCCH8_SACCH8C;
}
lchan = _lc_find_bts(bts, first);
if (lchan == NULL)
lchan = _lc_find_bts(bts, GSM_PCHAN_SDCCH8_SACCH8C);
lchan = _lc_find_bts(bts, second);
break;
case GSM_LCHAN_TCH_F:
lchan = _lc_find_bts(bts, GSM_PCHAN_TCH_F);