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DMR - Con+ Tune Timeout / Return to CC Tweaks;

This commit is contained in:
lwvmobile 2024-02-19 14:32:11 -05:00
parent c401035209
commit a2b622a343
2 changed files with 33 additions and 5 deletions
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7
src/dmr_csbk.c
View File

@ -1110,6 +1110,13 @@ void dmr_cspdu (dsd_opts * opts, dsd_state * state, uint8_t cs_pdu_bits[], uint8
}
else fprintf (stderr, "Source: %d - Target: %d ", source, target);
//if trunking and data calls allowed, convert preamble burst to a DATA header burst to hold p_clear or con+
if (opts->p25_trunk == 1 && opts->trunk_tune_data_calls == 1)
{
if (state->currentslot == 0) state->dmrburstL = 6;
else state->dmrburstR = 6;
}
}
//end tier 2 csbks

31
src/dmr_data.c
View File

@ -321,15 +321,36 @@ dmr_data_sync (dsd_opts * opts, dsd_state * state)
skipDibit (opts, state, 12 + 49 + 5);
}
#define CON_TUNEAWAY //disable if slower tune back is desired
#ifdef CON_TUNEAWAY
//if using con+ trunking and last voice observed more than x seconds ago, snap back to con+ cc
//con+ voice channels can have extremely long idle periods without properly tearing down
if (opts->p25_trunk == 1 && opts->p25_is_tuned == 1 && state->is_con_plus == 1)
{
//bug fixed that caused hopping from CC to VC; decreased to 2 seconds.
//wait time on call
time_t waitsec = 2;
if (opts->trunk_tune_data_calls == 1)
waitsec = 4; //increase time for a data call before hopping
if ( (time(NULL) - state->last_vc_sync_time > waitsec) )
//TLC seems to continue to roll during call timer, so its possible that is the indication to stay on the channel
//NOTE: Some Con+ systems seem to just spam the call grant up until the RF channel is torn down which is not very effecient for trunking purposes
//you either sit there until the framesync is lost, or go back on the condition below and just get sent back for nothing, not all CON+ does this
//switching to a more nuanced logic on CON+, look for any voice related activity before going back, including TLC hold on call/slot
int clear = 0;
if ( (state->dmrburstL != 16 && state->dmrburstL != 0 && state->dmrburstL != 1 && state->dmrburstL != 2) &&
(state->dmrburstR != 16 && state->dmrburstR != 0 && state->dmrburstR != 1 && state->dmrburstR != 2) ) clear = 1;
//second check for data activity if data calls are permitted to tune, and voice calls are already clear
if (opts->trunk_tune_data_calls == 1 && clear == 1)
{
clear = 0; //reset
//if no data header or data block sync in either slot
if ( (state->dmrburstL != 6 && state->dmrburstL != 7 && state->dmrburstL != 8 && state->dmrburstL != 10) &&
(state->dmrburstR != 6 && state->dmrburstR != 7 && state->dmrburstR != 8 && state->dmrburstR != 10) ) clear = 1;
}
//if a clear condition is available and the internal timer has expired, go back to CC
if ( (time(NULL) - state->last_vc_sync_time > waitsec) && (clear == 1) )
{
if (opts->use_rigctl == 1) //rigctl tuning
{
@ -369,5 +390,5 @@ dmr_data_sync (dsd_opts * opts, dsd_state * state)
}
}
#endif
}