diff options
| author | Harald Welte <laforge@gnumonks.org> | 2018-05-30 01:39:43 +0200 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2018-06-02 20:56:17 +0200 |
| commit | c997ceb750a67baef1a05590febe1c678b287d8f (patch) | |
| tree | e50b2bf3fe565546316577aa18096bffb9bb3497 /include/osmocom/bsc/osmo_bsc_lcls.h | |
| parent | 00965dca2bd78cc57ddb3989b365226908ff1c31 (diff) | |
Add initial 3GPP LCLS support to OsmoBSC
This code contains the following code:
* receive/parse/interpret LCLS specific BSSMAP IEs and PDUs
* osmo_fsm handling the various states and their transitions
* call leg correlation (finding the other subscr_conn with same GCR)
* communication between the two call-leg LCLS FSMs
* detection of supported / unsupported LCLS configurations
* display of GCR / LCLS information in "show conns"
* switch the media streams locally using MDCX to the MGW
Closes: OS#1602
Change-Id: I614fade62834def5cafc94c4d2578cd747a3f9f7
Diffstat (limited to 'include/osmocom/bsc/osmo_bsc_lcls.h')
| -rw-r--r-- | include/osmocom/bsc/osmo_bsc_lcls.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/include/osmocom/bsc/osmo_bsc_lcls.h b/include/osmocom/bsc/osmo_bsc_lcls.h new file mode 100644 index 000000000..2e6023404 --- /dev/null +++ b/include/osmocom/bsc/osmo_bsc_lcls.h @@ -0,0 +1,40 @@ +#pragma once +#include <osmocom/core/fsm.h> + +enum lcls_fsm_state { + ST_NO_LCLS, + ST_NOT_YET_LS, + ST_NOT_POSSIBLE_LS, + ST_NO_LONGER_LS, + ST_REQ_LCLS_NOT_SUPP, + ST_LOCALLY_SWITCHED, + /* locally switched; received remote break; wait for "local" break */ + ST_LOCALLY_SWITCHED_WAIT_BREAK, + /* locally switched; received break; wait for "other" break */ + ST_LOCALLY_SWITCHED_WAIT_OTHER_BREAK, +}; + +enum lcls_event { + /* update LCLS config/control based on some BSSMAP signaling */ + LCLS_EV_UPDATE_CFG_CSC, + /* apply LCLS config/control */ + LCLS_EV_APPLY_CFG_CSC, + /* we have been identified as the correlation peer of another conn */ + LCLS_EV_CORRELATED, + /* "other" LCLS connection has enabled local switching */ + LCLS_EV_OTHER_ENABLED, + /* "other" LCLS connection is breaking local switch */ + LCLS_EV_OTHER_BREAK, + /* "other" LCLS connection is dying */ + LCLS_EV_OTHER_DEAD, +}; + +enum gsm0808_lcls_status lcls_get_status(struct gsm_subscriber_connection *conn); + +void lcls_update_config(struct gsm_subscriber_connection *conn, + const uint8_t *config, const uint8_t *control); + +void lcls_apply_config(struct gsm_subscriber_connection *conn); + +extern struct osmo_fsm lcls_fsm; + |