From e466fdcb6086768d9944fe88a2b519c8f58a8264 Mon Sep 17 00:00:00 2001 From: Stefan Sperling Date: Mon, 16 Apr 2018 13:51:58 +0200 Subject: trigger acc ramping based on trx rf-locked state Make ACC ramping listen to network management signals and trigger or abort ACC ramping based on the RF locked state of TRX 0. This is a port of osmo-bsc commit 60ecdeffecf3db4ad044c5ee0185f384d1b16eb3 Change-Id: I4124f1da3dadec003de45c1da8435506ee8f0a34 --- openbsc/src/libbsc/acc_ramp.c | 45 +++++++++++++++++++++++++++++++++++++++++++ openbsc/src/libbsc/bsc_vty.c | 5 ++++- 2 files changed, 49 insertions(+), 1 deletion(-) (limited to 'openbsc/src') diff --git a/openbsc/src/libbsc/acc_ramp.c b/openbsc/src/libbsc/acc_ramp.c index e88772346..fd2c715d6 100644 --- a/openbsc/src/libbsc/acc_ramp.c +++ b/openbsc/src/libbsc/acc_ramp.c @@ -26,6 +26,7 @@ #include #include #include +#include /* * Check if an ACC has been permanently barred for a BTS, @@ -136,6 +137,49 @@ static void do_acc_ramping_step(void *data) osmo_timer_schedule(&acc_ramp->step_timer, get_next_step_interval(acc_ramp), 0); } +/* Implements osmo_signal_cbfn() -- trigger or abort ACC ramping upon changes RF lock state. */ +static int acc_ramp_nm_sig_cb(unsigned int subsys, unsigned int signal, void *handler_data, void *signal_data) +{ + struct nm_statechg_signal_data *nsd = signal_data; + struct acc_ramp *acc_ramp = handler_data; + struct gsm_bts_trx *trx = NULL; + + if (signal != S_NM_STATECHG_ADM) + return 0; + + if (nsd->obj_class != NM_OC_RADIO_CARRIER) + return 0; + + trx = nsd->obj; + + /* We only care about state changes of the first TRX. */ + if (trx->nr != 0) + return 0; + + /* RSL must already be up. We cannot send RACH system information to the BTS otherwise. */ + if (trx->rsl_link == NULL) + return 0; + + /* Trigger or abort ACC ramping based on the new 'RF lock' state of this TRX. */ + switch (nsd->new_state->administrative) { + case NM_STATE_UNLOCKED: + acc_ramp_trigger(acc_ramp); + break; + case NM_STATE_LOCKED: + case NM_STATE_SHUTDOWN: + acc_ramp_abort(acc_ramp); + break; + case NM_STATE_NULL: + break; + default: + LOGP(DRSL, LOGL_NOTICE, "(bts=%d) ACC RAMP: unrecognized administrative state '0x%x' reported for TRX 0\n", + acc_ramp->bts->nr, nsd->new_state->administrative); + break; + } + + return 0; +} + /*! * Initialize an acc_ramp data structure. * Storage for this structure must be provided by the caller. @@ -154,6 +198,7 @@ void acc_ramp_init(struct acc_ramp *acc_ramp, struct gsm_bts *bts) acc_ramp->step_interval_is_fixed = false; allow_all_enabled_accs(acc_ramp); osmo_timer_setup(&acc_ramp->step_timer, do_acc_ramping_step, acc_ramp); + osmo_signal_register_handler(SS_NM, acc_ramp_nm_sig_cb, acc_ramp); } /*! diff --git a/openbsc/src/libbsc/bsc_vty.c b/openbsc/src/libbsc/bsc_vty.c index a076397d0..c71ea4a3e 100644 --- a/openbsc/src/libbsc/bsc_vty.c +++ b/openbsc/src/libbsc/bsc_vty.c @@ -3045,7 +3045,10 @@ DEFUN(cfg_bts_acc_ramping, if (!acc_ramp_is_enabled(&bts->acc_ramp)) acc_ramp_set_enabled(&bts->acc_ramp, true); - /* ACC ramping takes effect when the BTS reconnects. */ + /* + * ACC ramping takes effect either when the BTS reconnects RSL, + * or when RF administrative state changes to 'unlocked'. + */ return CMD_SUCCESS; } -- cgit v1.2.3