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neels gerrit-no-reply at lists.osmocom.orgHello Jenkins Builder, fixeria, I'd like you to reexamine a change. Please visit https://gerrit.osmocom.org/c/osmo-bsc/+/23943 to look at the new patch set (#2). Change subject: lchan and assignment FSMs: make Channel Mode Modify more sane ...................................................................... lchan and assignment FSMs: make Channel Mode Modify more sane The Channel Mode Modify procedure is currently implemented for changing a TCH lchan from signalling to voice mode. For that, however, it is re-using (abusing) the channel activation structs and state transitions, and thus always implies activating a voice stream when the mode modification is done. I will add a Channel Mode Modify to enable VAMOS mode soon, so I require separate structs and state transitions which also work on an lchan that already has a voice stream established: a struct lchan_modify_info and LCHAN_EV_REQUEST_MODE_MODIFY, and dedicated assignment FSM state ASSIGNMENT_ST_WAIT_LCHAN_MODIFIED. For the part where a Channel Mode Modify enables a voice stream after switching from signalling to speech mode, still use the channel activation code path, but only once the mode modification is done. General improvements: - To ask for a mode modification, emit an FSM event that ensures a mode modify only happens when the lchan state allows it. - The new lchan_modify_info struct reflects only those parts that have an effect during a mode modification (before the lchan_activate_info was fully populated, many values not having an effect). - More accurate logging, indicating "Mode Modify" instead of "Channel Activation" A TTCN3 test for the Channel Mode Modify procedure is added in Idf4efaed986de0bbd2b663313e837352cc139f0f, and the test passes both before and after this patch is applied. Related: SYS#4895 Change-Id: I4986844f839b1c9672c61d916eb3d33d0042d747 --- M doc/assignment-fsm.dot M include/osmocom/bsc/assignment_fsm.h M include/osmocom/bsc/gsm_data.h M include/osmocom/bsc/lchan_fsm.h M src/osmo-bsc/assignment_fsm.c M src/osmo-bsc/lchan_fsm.c 6 files changed, 205 insertions(+), 67 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/43/23943/2 -- To view, visit https://gerrit.osmocom.org/c/osmo-bsc/+/23943 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-bsc Gerrit-Branch: master Gerrit-Change-Id: I4986844f839b1c9672c61d916eb3d33d0042d747 Gerrit-Change-Number: 23943 Gerrit-PatchSet: 2 Gerrit-Owner: neels <nhofmeyr at sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: fixeria <vyanitskiy at sysmocom.de> Gerrit-MessageType: newpatchset -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20210430/add5a0cf/attachment.htm>