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-rw-r--r--openbsc/src/chan_alloc.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/openbsc/src/chan_alloc.c b/openbsc/src/chan_alloc.c
index 5325dc08a..a0eda546e 100644
--- a/openbsc/src/chan_alloc.c
+++ b/openbsc/src/chan_alloc.c
@@ -225,7 +225,8 @@ _lc_find_bts(struct gsm_bts *bts, enum gsm_phys_chan_config pchan)
}
/* Allocate a logical channel */
-struct gsm_lchan *lchan_alloc(struct gsm_bts *bts, enum gsm_chan_t type)
+struct gsm_lchan *lchan_alloc(struct gsm_bts *bts, enum gsm_chan_t type,
+ int allow_bigger)
{
struct gsm_lchan *lchan = NULL;
enum gsm_phys_chan_config first, second;
@@ -243,6 +244,19 @@ struct gsm_lchan *lchan_alloc(struct gsm_bts *bts, enum gsm_chan_t type)
lchan = _lc_find_bts(bts, first);
if (lchan == NULL)
lchan = _lc_find_bts(bts, second);
+
+ /* allow to assign bigger channels */
+ if (allow_bigger) {
+ if (lchan == NULL) {
+ lchan = _lc_find_bts(bts, GSM_PCHAN_TCH_H);
+ type = GSM_LCHAN_TCH_H;
+ }
+
+ if (lchan == NULL) {
+ lchan = _lc_find_bts(bts, GSM_PCHAN_TCH_F);
+ type = GSM_LCHAN_TCH_F;
+ }
+ }
break;
case GSM_LCHAN_TCH_F:
lchan = _lc_find_bts(bts, GSM_PCHAN_TCH_F);