diff options
Diffstat (limited to 'src/common/bts.c')
| -rw-r--r-- | src/common/bts.c | 34 |
1 files changed, 21 insertions, 13 deletions
diff --git a/src/common/bts.c b/src/common/bts.c index b4a5f804..7257f37b 100644 --- a/src/common/bts.c +++ b/src/common/bts.c @@ -56,6 +56,7 @@ #include <osmo-bts/nm_common_fsm.h> #include <osmo-bts/power_control.h> #include <osmo-bts/osmux.h> +#include <osmo-bts/notification.h> #define MIN_QUAL_RACH 50 /* minimum link quality (in centiBels) for Access Bursts */ #define MIN_QUAL_NORM -5 /* minimum link quality (in centiBels) for Normal Bursts */ @@ -723,8 +724,7 @@ static void compact_agch_queue(struct gsm_bts *bts) return; } -int bts_ccch_copy_msg(struct gsm_bts *bts, uint8_t *out_buf, struct gsm_time *gt, - int is_ag_res) +int bts_ccch_copy_msg(struct gsm_bts *bts, uint8_t *out_buf, struct gsm_time *gt, enum ccch_msgt ccch) { struct msgb *msg = NULL; int rc = 0; @@ -737,17 +737,25 @@ int bts_ccch_copy_msg(struct gsm_bts *bts, uint8_t *out_buf, struct gsm_time *gt */ compact_agch_queue(bts); - /* Check for paging messages first if this is PCH */ - if (!is_ag_res) - rc = paging_gen_msg(bts->paging_state, out_buf, gt, &is_empty); - - /* Check whether the block may be overwritten */ - if (!is_empty) - return rc; - - msg = bts_agch_dequeue(bts); - if (!msg) + switch (ccch) { + case CCCH_MSGT_NCH: + /* Send NCH message, it has priority over AGCH and does not overlap with PCH. */ + rc = bts_asci_notify_nch_gen_msg(bts, out_buf); return rc; + case CCCH_MSGT_PCH: + /* Check whether the block may be overwritten by AGCH. */ + rc = paging_gen_msg(bts->paging_state, out_buf, gt, &is_empty); + if (!is_empty) + return rc; + /* fall-through */ + case CCCH_MSGT_AGCH: + /* If fallen here and the AGCH queue is empty, return empty PCH message. */ + msg = bts_agch_dequeue(bts); + if (!msg) + return rc; + /* Continue to return AGCH message. */ + break; + } rate_ctr_inc2(bts->ctrs, BTS_CTR_AGCH_SENT); @@ -756,7 +764,7 @@ int bts_ccch_copy_msg(struct gsm_bts *bts, uint8_t *out_buf, struct gsm_time *gt rc = msgb_l3len(msg); msgb_free(msg); - if (is_ag_res) + if (ccch == CCCH_MSGT_AGCH) bts->agch_queue.agch_msgs++; else bts->agch_queue.pch_msgs++; |