(currently only CD-ROM drives on i386). The sys/dev/scsipi system provides 2
busses to which devices can attach (scsibus and atapibus). This needed to
change some include files and structure names in the low level scsi drivers.
two DMA channels to do e.g. full-duplex. This allows
a way of specifying the second channel in a sane way.
THIS IS TEMPORARY. The drq2 locator will go away when
the locator system has been changed to allow multiple
values per locator.
device memory mapping cacheable/non-cacheable:
- PG_N doesn't exist on the 386.
- pmap_changebit() only deals with managed pages.
Basically, calling it is unnecessary, and never did anything. Pointed
out by Chuck Cranor, and further discussed with Frank van der Linden.
Also, add a comment about why we don't mark pages non-cacheable in
_bus_dmamem_map().
Delay setting of cn_tab->cn_dev until autoconfiguration attach
to get the minor number right. (not really needed, but for
consistency with pccons and serial consoles)
Comment out unused pccnprobe() and pccninit().
XXX I didn't use "#if PCVT_NETBSD > ???" anymore, nor separated from
FreeBSD. The driver is not centrally maintained anyway.
* make map and alloc take 'flags' rather than 'cacheable,' for
more flexibility.
* rename BUS_BARRIER_* to BUS_SPACE_BARRIER_*, for consistency.
* rename bus_space_copy_* to bus_space_copy_region_* and make their
defns match the updated spec.
Backward compatibility is provided by defining __BUS_SPACE_COMPAT_OLDDEFS,
which is currently defined by default.
anymore). This makes the code cleaner (no more bus tag guessing in the
serial console driver) and it allows to share code with KGDB port
initialization.
The console device is now given as string ("pc", "com0".."com3").
Modelled after alpha port.
keys on a pccons console keyboard.
submitted in PR 899 by Alistair G. Crooks
Note that I only did this for the US type keyboard maps.
This and all other such options should be documented, and perhaps
rennamed with consistant PCCONS_ prefixes.
o option DISPLAY_ISO8859 enables the display of iso-latin1
character set (instead of the IBM page code 437)
o option FRENCH_KBD, GERMAN_KBD or NORVEGIAN_KBD implement
support for national keyboards (implies DISPLAY_ISO8859).
Originally supplied in PR #1529
2) Add option PCCONS_REAL_BS which (for US keyboards only) forces
backspace to really be backspace and not delete. Intended to close
PR #2264 submitted by Greg Woods. He wanted it changed for everyone
-- I thought adding a kernel compile option was friendlier.
Note: Both of these sets of options really should be documented in an
i386 specific version of options(4).
mycroft