Date: Mon, 15 May 2000 11:22:36 +0200 (MEST) From: Holger Lamm <holger@eit.uni-kl.de> To: freebsd-alpha@freebsd.org Subject: Parallel port? Message-ID: <Pine.LNX.4.21.0005121605580.15224-100000@ernie.eit.uni-kl.de>
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Hi,
is there a special reason why the parallel port is not supported on Alpha?
I just played around with my AXPpci and added insb() and outsb() to
/sys/alpha/include/cpufunc.h (copied and modified insw and outsw from
below), then it compiles well (5.0-current cvsupped somewhen last
week):
---------------- config: ------------------------------------
options LPT_DEBUG # Printer driver debug
options PPC_DEBUG # Parallel chipset level debug
device ppbus
device ppc0 at isa? irq 7
device lpt
device ppi
------------------ dmesg:------------------------------
[...]
mcclock0: <MC146818A real time clock> at port 0x70-0x71 on isa0
sio0: configured irq 4 not in bitmap of probed irqs 0
sio0 at port 0x3f8-0x3ff irq 4 on isa0
sio0: type 16550A, console
sio0: interrupting at ISA irq 4
sio1: reserved for low-level i/o
ppc0: <Parallel port> at port 0x3bc-0x3c3 irq 7 on isa0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
ppi0: <Parallel I/O> on ppbus0
out=55 in=55 tout=10000
out=aa in=aa tout=10000
out=fe in=fe tout=10000
out=fd in=fd tout=10000
out=fb in=fb tout=10000
out=f7 in=f7 tout=10000
out=ef in=ef tout=10000
out=df in=df tout=10000
out=bf in=bf tout=10000
out=7f in=7f tout=10000
out=1 in=1 tout=10000
out=2 in=2 tout=10000
out=4 in=4 tout=10000
out=8 in=8 tout=10000
out=10 in=10 tout=10000
out=20 in=20 tout=10000
out=40 in=40 tout=10000
out=80 in=80 tout=10000
lpt0: <Printer> on ppbus0
oldirq 0
lpt0: Polled port
irq 7 0
ppc0: interrupting at ISA irq 7
Timecounter "alpha" frequency 167182812 Hz
Waiting 10 seconds for SCSI devices to settle
[...]
Unfortunately I can't check if this was all, I don't have a working
printer (I need the port for bit-banging).
Holger
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