doc: update/fix FSM charts
These reflect the plan for refactoring, and will be implemented by
I82e3f918295daa83274a4cf803f046979f284366 and
Id7a4407d9b63be05ce63f5f2768b7d7e3d5c86fb
Change-Id: I29e31b753e23a4207662e0e385a337e7df836f45
diff --git a/doc/handover-intra-bsc-fsm.dot b/doc/handover-intra-bsc-fsm.dot
new file mode 100644
index 0000000..7cb0d3c
--- /dev/null
+++ b/doc/handover-intra-bsc-fsm.dot
@@ -0,0 +1,30 @@
+digraph G {
+rankdir=TB
+labelloc=t; label="Handover FSM: Intra-BSC"
+
+ lchan [label="lchan FSM",shape=box3d]
+ intra [label="intra-BSC HO",shape=box]
+ old_lchan [label="old lchan",shape=box3d]
+ terminate [shape=octagon]
+
+ invisible [style="invisible"]
+ invisible -> intra [label="Measurement Report",style=dotted]
+ invisible -> old_lchan [style=invisible,arrowhead=none]
+
+ intra -> WAIT_LCHAN_ACTIVE [label="handover_start()",style=dotted]
+ WAIT_LCHAN_ACTIVE -> lchan [label="lchan_activate(FOR_HANDOVER)",style=dotted]
+ lchan -> WAIT_LCHAN_ACTIVE [label="HO_EV_\nLCHAN_\nACTIVE,ERROR",style=dotted,constraint=false]
+ WAIT_LCHAN_ACTIVE -> WAIT_RR_HO_DETECT
+ WAIT_RR_HO_DETECT -> old_lchan [label="RR Handover\nCommand",style=dotted,constraint=false]
+
+ lchan -> WAIT_RR_HO_DETECT [label="RR Handover\nDetect",style=dotted]
+ WAIT_RR_HO_DETECT -> WAIT_RR_HO_COMPLETE
+
+ lchan -> WAIT_RR_HO_COMPLETE [label="RR Handover\nComplete",style=dotted]
+ WAIT_RR_HO_COMPLETE -> WAIT_LCHAN_ESTABLISHED
+ lchan -> WAIT_LCHAN_ESTABLISHED [label="HO_EV_LCHAN_\nESTABLISHED",style=dotted]
+
+ WAIT_LCHAN_ESTABLISHED -> terminate [label="non-TCH"]
+ WAIT_LCHAN_ESTABLISHED -> WAIT_MGW_ENDPOINT_TO_MSC
+ WAIT_MGW_ENDPOINT_TO_MSC -> terminate [label="handover_end()"]
+}