David Brownell <david-b@pacbell.net>:

Make the TCL "drscan" and "irscan" commands finish in RUN/IDLE
unless the user specifies otherwise ... usually they'd choose
something like DRPAUSE or IRPAUSE, avoiding RUN/IDLE.

The current "end" state is whatever the preceding commands left
in "cmd_queue_end_state", which to TCL scripts isn't knowable.
This change should forestall various surprises/bugs.

Also check that any "end" state specified is safe in case this
adapter's JTAG clock is free-running.  For now, just issue a
warning; eventually a hard failure is probably correct.


git-svn-id: svn://svn.berlios.de/openocd/trunk@1988 b42882b7-edfa-0310-969c-e2dbd0fdcd60