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add BSIC parameter to gsm_bts_neighbor() 

When looking for the gsm_bts of a neighbor cell, use BSIC and ARFCN
tuple rather than just ARFCN for better identification purpose.
This commit is contained in:
Harald Welte 2009-12-15 00:21:31 +01:00
parent 84874c9005
commit 0b12103965
2 changed files with 6 additions and 3 deletions
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3
openbsc/include/openbsc/gsm_data.h
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@ -503,7 +503,8 @@ struct gsm_bts_trx *gsm_bts_trx_alloc(struct gsm_bts *bts);
struct gsm_bts *gsm_bts_num(struct gsm_network *net, int num);
/* Get reference to a neighbor cell on a given BCCH ARFCN */
struct gsm_bts *gsm_bts_neighbor(const struct gsm_bts *bts, u_int16_t arfcn);
struct gsm_bts *gsm_bts_neighbor(const struct gsm_bts *bts,
u_int16_t arfcn, u_int8_t bsic);
struct gsm_bts_trx *gsm_bts_trx_num(struct gsm_bts *bts, int num);

6
openbsc/src/gsm_data.c
View File

@ -235,7 +235,8 @@ struct gsm_bts *gsm_bts_num(struct gsm_network *net, int num)
}
/* Get reference to a neighbor cell on a given BCCH ARFCN */
struct gsm_bts *gsm_bts_neighbor(const struct gsm_bts *bts, u_int16_t arfcn)
struct gsm_bts *gsm_bts_neighbor(const struct gsm_bts *bts,
u_int16_t arfcn, u_int8_t bsic)
{
struct gsm_bts *neigh;
/* FIXME: use some better heuristics here to determine which cell
@ -244,7 +245,8 @@ struct gsm_bts *gsm_bts_neighbor(const struct gsm_bts *bts, u_int16_t arfcn)
* cell */
llist_for_each_entry(neigh, &bts->network->bts_list, list) {
if (neigh->c0->arfcn == arfcn)
if (neigh->c0->arfcn == arfcn &&
neigh->bsic == bsic)
return neigh;
}