to prepare for if_media, and to support EISA 3c59x cards:
* change epconfig() to take a short that encodes the chipset
type (3c509, or Demon/Vortex/Boomerang).
* add distinct 3c509 and Demon/Vortex/Boomerang media-sense
functions to back end.
* Add EISA match/attach support for the 3c592 and 3c597
(Demon) cards as well as the 3c509-comatibl EISA 3c509/3c579.
* Assume that ISA and ISA PnP cards are 3c509-style, until
proof to the contrary (e.g. large packet support).
Tested on 3c595, 3c590, and 3c509b. Not tested on 3c515 or Demon.
- fix the parser so that non-compliant isapnp devices work, and we
give up when there are too many errors (some on-board pnp sound/atapi/game
soundblaster compatible card). reported by chuck cranor
- fix the parser so that configuration tags that come after the
end-dependencies tag or before the begin-dependencies tag are merged
in properly (gravis ultrasound). reported by gary duzan
We now build a tree of card -> logical-dev -> conf, and in the end we
convert it to a list of conf...
