osmo-bsc/doc/lchan-fsm.dot

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digraph G {
rankdir=TB
labelloc=t; label="lchan FSM"
invisible [style="invisible"]
UNUSED [penwidth=3.0]
ESTABLISHED [penwidth=3.0]
ts [label="timeslot FSM",shape=box3d]
rtp [label="lchan_rtp\nFSM",shape=box3d]
UNUSED -> WAIT_TS_READY [label="lchan_allocate()"]
WAIT_TS_READY -> WAIT_ACTIV_ACK
WAIT_ACTIV_ACK -> WAIT_RLL_RTP_ESTABLISH
WAIT_RLL_RTP_ESTABLISH -> ESTABLISHED
ESTABLISHED -> WAIT_RLL_RTP_RELEASED [label="LCHAN_EV_\nRELEASE"]
WAIT_RLL_RTP_RELEASED -> WAIT_BEFORE_RF_RELEASE
WAIT_RLL_RTP_RELEASED -> WAIT_RF_RELEASE_ACK [label="timeout",style=dashed,constraint=false]
WAIT_BEFORE_RF_RELEASE -> WAIT_RF_RELEASE_ACK [label="T3111"]
WAIT_RF_RELEASE_ACK -> UNUSED
WAIT_RF_RELEASE_ACK -> WAIT_AFTER_ERROR [label="release was\ndue to error"]
WAIT_AFTER_ERROR -> UNUSED [label="T3111+2s"]
WAIT_TS_READY -> ts [label="TS_EV_\nLCHAN_\nREQUESTED",style=dotted,penwidth=3]
UNUSED -> ts [label="TS_EV_\nLCHAN_\nUNUSED",style=dotted,penwidth=3]
ts -> WAIT_TS_READY [label="LCHAN_EV_\nTS_READY",style=dotted]
WAIT_TS_READY -> rtp [label="TCH",style=dotted]
WAIT_TS_READY -> UNUSED [label="error/timeout",style=dashed,constraint=false]
{WAIT_ACTIV_ACK,WAIT_RF_RELEASE_ACK} -> BORKEN [label="error/timeout",style=dashed]
BORKEN -> WAIT_AFTER_ERROR [label="late RF Release ACK"]
BORKEN -> WAIT_RF_RELEASE_ACK [label="late Activation ACK"]
WAIT_RLL_RTP_ESTABLISH -> WAIT_RLL_RTP_RELEASED [label=error,style=dashed]
WAIT_ACTIV_ACK -> rtp [label="LCHAN_RTP_EV_LCHAN_READY",style=dotted]
rtp -> WAIT_RLL_RTP_ESTABLISH [label="LCHAN_EV_RTP_READY",style=dotted]
rtp -> ESTABLISHED [label="LCHAN_EV_RTP_RELEASED",style=dotted]
ESTABLISHED -> WAIT_RR_CHAN_MODE_MODIFY_ACK [label="LCHAN_EV_REQUEST_MODE_MODIFY"]
WAIT_RR_CHAN_MODE_MODIFY_ACK -> WAIT_RSL_CHAN_MODE_MODIFY_ACK [label="LCHAN_EV_RR_CHAN_MODE_MODIFY_ACK"]
WAIT_RSL_CHAN_MODE_MODIFY_ACK -> WAIT_RLL_RTP_ESTABLISH [label="LCHAN_EV_RSL_CHAN_MODE_MODIFY_ACK\nwhen adding RTP"]
WAIT_RSL_CHAN_MODE_MODIFY_ACK -> ESTABLISHED [label="LCHAN_EV_RSL_CHAN_MODE_MODIFY_ACK\nno change to RTP"]
WAIT_RR_CHAN_MODE_MODIFY_ACK -> BORKEN [label="error/timeout",style=dashed]
WAIT_RSL_CHAN_MODE_MODIFY_ACK -> BORKEN [label="error/timeout",style=dashed]
BORKEN -> RECOVER_WAIT_ACTIV_ACK [label="X28"]
RECOVER_WAIT_ACTIV_ACK -> BORKEN [label="error/timeout",style=dashed]
RECOVER_WAIT_ACTIV_ACK -> UNUSED [label="rx ACK"]
RECOVER_WAIT_ACTIV_ACK -> RECOVER_WAIT_RF_RELEASE_ACK [label="rx NACK"]
RECOVER_WAIT_RF_RELEASE_ACK -> UNUSED [label="rx ACK"]
RECOVER_WAIT_RF_RELEASE_ACK -> BORKEN [label="error/timeout",style=dashed]
}