Hint:

LibSWD takes AP/DP Read/Write calls (DAP operations in general) and
transfers them from/into bitstream and input/output data. This is
implemented in a form of library/submodule, like a black box.

Integration part on the OpenOCD side is really small and simple (but
smart I guess) - AP/DP Reads/Writes are calling LibSWD routines when
SWD Transport is selected. When JTAG Transport is selected everything
happens as before. LibSWD use Interface Transfer/Bitbang routines to
manipulate electricity. I have additionally packed all ARM_DAP calls
into Interface Feature, so Interface can use different Features to
perform JTAG, SWD-LibSWD or its own SWD, or other tricks.

Thats all :-)

-- 
CeDeROM, SQ7MHZ, http://www.tomek.cedro.info

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