summaryrefslogtreecommitdiffstats
path: root/sys/gnu
diff options
context:
space:
mode:
authornsouch <nsouch@FreeBSD.org>2000-01-14 00:18:06 +0000
committernsouch <nsouch@FreeBSD.org>2000-01-14 00:18:06 +0000
commit59fc142474158cbbfbae06872a4e3efaa40e777f (patch)
tree3dd5303c8a8a1e20337965402c872462f141a217 /sys/gnu
parent83719ce7419aa6d99e02f397ba20a42d7406963b (diff)
downloadFreeBSD-src-59fc142474158cbbfbae06872a4e3efaa40e777f.zip
FreeBSD-src-59fc142474158cbbfbae06872a4e3efaa40e777f.tar.gz
Port of ppbus standalone framework to the newbus system.
Note1: the correct interrupt level is invoked correctly for each driver. For this purpose, drivers request the bus before being able to call BUS_SETUP_INTR and BUS_TEARDOWN_INTR call is forced by the ppbus core when drivers release it. Thus, when BUS_SETUP_INTR is called at ppbus driver level, ppbus checks that the caller owns the bus and stores the interrupt handler cookie (in order to unregister it later). Printing is impossible while plip link is up is still TRUE. vpo (ZIP driver) and lpt are make in such a way that using the ZIP and printing concurrently is permitted is also TRUE. Note2: specific chipset detection is not done by default. PPC_PROBE_CHIPSET is now needed to force chipset detection. If set, the flags 0x40 still avoid detection at boot. Port of the pcf(4) driver to the newbus system (was previously directly connected to the rootbus and attached by a bogus pcf_isa_probe function).
Diffstat (limited to 'sys/gnu')
0 files changed, 0 insertions, 0 deletions
OpenPOWER on IntegriCloud