diff options
| author | Neels Hofmeyr <neels@hofmeyr.de> | 2016-07-23 19:45:15 +0200 |
|---|---|---|
| committer | Neels Hofmeyr <neels@hofmeyr.de> | 2016-07-28 11:56:51 +0200 |
| commit | b91e6002a6c97cf1c19b14015f4f17a7ad7ace62 (patch) | |
| tree | 158cf049a8ede9bcd6c03556c407ae84d5cd9a49 /openbsc/include | |
| parent | 7af652c0b27d79322043a23f4aa081c919546a73 (diff) | |
dyn TS: implement pchan switchover logic
In struct gsm_lchan, add dyn.rqd_ref and dyn.rqd_ta. These save the Channel
Requested details across the PDCH deactivation dance.
abis_rsl.c: add static functions:
* dyn_ts_switchover*() for the various stages of switchover between pchans.
* pchan_for_lchant() to derive the desired pchan from the lchan type that was
set during lchan_alloc().
* rsl_chan_activate_lchan_as_pdch() to compose the simpler RSL CHAN ACT message
without introducing numerous special cases to the normal RSL CHAN ACT code.
In rsl_chan_activate_lchan(), detect and initiate required pchan switchovers if
requested pchan on a dyn TS differs.
In rsl_rx_rf_chan_rel_ack(), initiate or continue pchan switchovers after a
channel was released.
In rsl_rx_chan_act_ack(), notice that a switchover is complete.
In chan_alloc.c, add ts_subslots(): abis_rsl.c will need to know the number of
subslots per pchan, to verify that all lchans are free before dyn TS
switchover. The subslots_per_pchan[] array is static to lchan_alloc.c, and
since we need a non-trivial check for dyn TS anyway, add public ts_subslots()
to lchan_alloc.c, which also checks the current dyn pchan type.
Change-Id: I5c6bce13092a10204113d84678c587c65e35e4fd
Diffstat (limited to 'openbsc/include')
| -rw-r--r-- | openbsc/include/openbsc/chan_alloc.h | 2 | ||||
| -rw-r--r-- | openbsc/include/openbsc/gsm_data_shared.h | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/openbsc/include/openbsc/chan_alloc.h b/openbsc/include/openbsc/chan_alloc.h index 78242e5b7..3e03b97d0 100644 --- a/openbsc/include/openbsc/chan_alloc.h +++ b/openbsc/include/openbsc/chan_alloc.h @@ -51,4 +51,6 @@ void network_chan_load(struct pchan_load *pl, struct gsm_network *net); int trx_is_usable(struct gsm_bts_trx *trx); +uint8_t ts_subslots(struct gsm_bts_trx_ts *ts); + #endif /* _CHAN_ALLOC_H */ diff --git a/openbsc/include/openbsc/gsm_data_shared.h b/openbsc/include/openbsc/gsm_data_shared.h index b4ff0a43b..953bac62e 100644 --- a/openbsc/include/openbsc/gsm_data_shared.h +++ b/openbsc/include/openbsc/gsm_data_shared.h @@ -261,6 +261,8 @@ struct gsm_lchan { /* channel activation type and handover ref */ uint8_t act_type; uint8_t ho_ref; + struct gsm48_req_ref *rqd_ref; + uint8_t rqd_ta; } dyn; #else /* Number of different GsmL1_Sapi_t used in osmo_bts_sysmo is 23. |