path: root/src/osmo-bts-litecell15/tch.c
diff options
authorMax <msuraev@sysmocom.de>2016-12-28 12:43:09 +0100
committerMax <msuraev@sysmocom.de>2017-01-04 11:25:17 +0100
commitf9778b2a26ce06959ee7e188eb1d533d896f1846 (patch)
tree6726018873d26f98e57c72aa932882aaacebdbea /src/osmo-bts-litecell15/tch.c
parentc2ecca6b0496127709dcd3afa9d366085d8bec97 (diff)
DTX AMR HR: fix inhibition
* Unlike in AMR FR, in AMR HR incoming ONSET have to be treated differently depending on whether we've recently sent SID UPDATE or EMPTY frame. Split ST_SID_U FSM state into 2 states to accommodate for that and make sure that additional states specific to AMR HR are not used for AMR FR. * Avoid sending E_VOICE and E_SID_U in corresponding states as those do not initiate FSM state transitions anyway. This decrease extra load from FSM signalling which otherwise would be triggered on per-frame basis. * Introduce separate signal for SID First P1 -> P2 transition to avoid confusion with E_COMPL and E_SID_U initiated transitions from P1 state. * Don't init DTX FSM for SDCCH channels. Change-Id: I229ba39a38a223fada4881fc9aca35d3639371f8 Related: OS#1801
Diffstat (limited to 'src/osmo-bts-litecell15/tch.c')
1 files changed, 1 insertions, 0 deletions
diff --git a/src/osmo-bts-litecell15/tch.c b/src/osmo-bts-litecell15/tch.c
index de3c7e35..a47a88f6 100644
--- a/src/osmo-bts-litecell15/tch.c
+++ b/src/osmo-bts-litecell15/tch.c
@@ -322,6 +322,7 @@ int l1if_tch_encode(struct gsm_lchan *lchan, uint8_t *data, uint8_t *len,
dtx_cache_payload(lchan, rtp_pl, rtp_pl_len, fn, 0);
return 1;
case ST_SID_U:
+ case ST_U_NOINH:
return -EAGAIN;
case ST_FACCH:
return -EBADMSG;