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[rsl] Implement the T3111 timer to delay the RF Channel release

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This commit is contained in:
Holger Hans Peter Freyther
2010-05-31 21:33:15 +08:00
parent d7fd30617f
commit f30c0dca0d
3 changed files with 17 additions and 5 deletions
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1
openbsc/include/openbsc/gsm_data.h
View File

@@ -256,6 +256,7 @@ struct gsm_lchan {
} encr;
struct timer_list T3101;
struct timer_list T3111;
/* AMR bits */
struct gsm48_multi_rate_conf mr_conf;

19
openbsc/src/abis_rsl.c
View File

@@ -987,6 +987,7 @@ static int abis_rsl_rx_dchan(struct msgb *msg)
LOGP(DRSL, LOGL_NOTICE, "%s CHAN REL ACK but state %s\n",
gsm_lchan_name(msg->lchan),
gsm_lchans_name(msg->lchan->state));
bsc_del_timer(&msg->lchan->T3111);
rsl_lchan_set_state(msg->lchan, LCHAN_S_NONE);
lchan_free(msg->lchan);
break;
@@ -1082,6 +1083,14 @@ static void t3101_expired(void *data)
rsl_rf_chan_release(lchan);
}
/* If T3111 expires, we will send the RF Channel Request */
static void t3111_expired(void *data)
{
struct gsm_lchan *lchan = data;
rsl_rf_chan_release(lchan);
}
/* MS has requested a channel on the RACH */
static int rsl_rx_chan_rqd(struct msgb *msg)
{
@@ -1260,16 +1269,18 @@ static int rsl_rx_rll_err_ind(struct msgb *msg)
static void rsl_handle_release(struct gsm_lchan *lchan)
{
struct gsm_bts *bts;
if (lchan->state != LCHAN_S_REL_REQ)
LOGP(DRSL, LOGL_ERROR, "RF release on %s but state %s\n",
gsm_lchan_name(lchan),
gsm_lchans_name(lchan->state));
/* we can now releae the channel on the BTS/Abis side */
/* FIXME: officially we need to start T3111 and wait for
* some grace period */
rsl_rf_chan_release(lchan);
/* wait a bit to send the RF Channel Release */
lchan->T3111.cb = t3111_expired;
lchan->T3111.data = lchan;
bts = lchan->ts->trx->bts;
bsc_schedule_timer(&lchan->T3111, bts->network->T3111, 0);
}
/* ESTABLISH INDICATION, LOCATION AREA UPDATE REQUEST

2
openbsc/src/bsc_vty.c
View File

@@ -1239,7 +1239,7 @@ DECLARE_TIMER(3103, "Set the timeout value for HANDOVER.")
DECLARE_TIMER(3105, "Currently not used.")
DECLARE_TIMER(3107, "Currently not used.")
DECLARE_TIMER(3109, "Currently not used.")
DECLARE_TIMER(3111, "Currently not used.")
DECLARE_TIMER(3111, "Set the RSL timeout to wait before releasing the RF Channel.")
DECLARE_TIMER(3113, "Set the time to try paging a subscriber.")
DECLARE_TIMER(3115, "Currently not used.")
DECLARE_TIMER(3117, "Currently not used.")