[pups] adding MSCP driver to 2.9BSD

Hi -- I'd normally be posting from my '2bsd.com' account but the circuit failed today and the telco is due out tomorrow (Saturday) morning. Ah, I didn't know that someone had created a MSCP driver for 2.9 I don't know about 2.9 but I do know just a little bit about 2.11 and the MSCP (and TMSCP) drivers 'probe' and "autoconfig" just fine. In fact in 2.11 floating vectors are allocated descending from 01000 and programmed into the adaptor for secondary controllers (the primary/first/boot controller always gets 0154). When you updated the kernel did you also update the 'autoconfig' process? In 2.11 there is /sys/autoconfig and whenever a new device driver is added to the kernel it is also necessary to update the autoconfig code with a 'XXauto.c" file and an entry in a couple tables. As I recall on 2.9 the autoconf stuff was intermingled with the regular driver sources which made for a bit of a mess. When 2.11 came around the chance was taken to clean things up. Programmable vector devices (such as MSCP) are a VERY awkward thing for 'autoconfig' to deal with. Prior to 2.11 the vectors were more or less hardcoded in 'l.s' (or was it scb.s or locore.s - gads my memory is slipping) and the driver. 'autoconfig' was mostly a double check that a device was really present. 2.11 has the kernel hooks for 'autoconfig' to request a dynamically allocated vector which can be assigned to a device - bit of a hack but fairly elegantly done. Look in /sys/pdpuba and see if you can find the '*auto.c' files - follow their lead and craft something for 'autoconfig'. The simplest case is to just "check that something exists" at the CSR and return 'true' - don't try to force an interrupt, etc. Perhaps some other folks who have run 2.9 more recently (or who have better memory than I do ;)) can jump in here. Steven Schultz sms(a)moe.2bsd.com (when the circuit gets fixed ;))