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Document PCIC_ISA_INTR_ALLOC_MASK; documentation is now up-to-par with

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the info in distrib/notes.

Minor fixup on PCIC_ISA_ALLOC_IO*.
This commit is contained in:
jhawk 2000-08-30 19:05:47 +00:00
parent f286397ff1
commit d3a097fd74
2 changed files with 33 additions and 7 deletions
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16
share/man/man4/options.4
View File

@ -1,4 +1,4 @@
.\" $NetBSD: options.4,v 1.115 2000/08/03 00:34:08 jeffs Exp $
.\" $NetBSD: options.4,v 1.116 2000/08/30 19:05:47 jhawk Exp $
.\"
.\" Copyright (c) 1996
.\" Perry E. Metzger. All rights reserved.
@ -30,7 +30,7 @@
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.\"
.Dd April 13, 2000
.Dd August 29, 2000
.Os
.Dt OPTIONS 4
.Sh NAME
@ -1490,6 +1490,18 @@ Ideally the probed defaults are satisfactory, however in practice
that is not always the case. See
.Xr pcmcia 4
for details.
.It Cd options PCIC_ISA_INTR_ALLOC_MASK=mask
Controls the allowable interrupts that may be used for
.Tn PCMCIA
devices. This mask is a logical-or of power-of-2s of allowable
interrupts:
.Bd -literal -offset 04n
.Em "IRQ Val IRQ Val IRQ Val IRQ Val"
0 0x0001 4 0x0010 8 0x0100 12 0x1000
1 0x0002 5 0x0020 9 0x0200 13 0x2000
2 0x0004 6 0x0040 10 0x0400 14 0x4000
3 0x0008 7 0x0080 11 0x0800 15 0x8000
.Ed
.El
.Ss m68k-specific Options
.Bl -ohang

24
share/man/man4/pcmcia.4
View File

@ -1,4 +1,4 @@
.\" $NetBSD: pcmcia.4,v 1.17 2000/07/24 11:58:31 ad Exp $
.\" $NetBSD: pcmcia.4,v 1.18 2000/08/30 19:05:47 jhawk Exp $
.\"
.\" Copyright (c) 1999 The NetBSD Foundation, Inc.
.\" All rights reserved.
@ -34,7 +34,7 @@
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
.\" POSSIBILITY OF SUCH DAMAGE.
.\"
.Dd April 13, 2000
.Dd August 29, 2000
.Dt PCMCIA 4
.Os
.Sh NAME
@ -145,12 +145,17 @@ driver appeared in
.Sh BUGS
.Ss IO space conflicts
.Nx
probes the pcmcia IO bus width and uses that information to decide
where to map PCMCIA IO space. For 10-bit wide cards, 0x300-0x3ff is
probes the
.Tn PCMCIA
IO bus width and uses that information to decide
where to map
.Tn PCMCIA
IO space. For 10-bit wide cards, 0x300-0x3ff is
used. For 12-bit wide cards, 0x400-0x4ff is used.
.Pp
Neither choice is perfect. In the 12-bit case, 0x400 appears to work
on substantially more devices than 0x300. In the event that pcmcia
on substantially more devices than 0x300. In the event that
.Tn PCMCIA
devices are mapped in 0x400-0xfff and appear to be nonfunctional,
remapping to 0x300-0x3ff may be appropriate; consult
.Cd options PCIC_ISA_ALLOC_IOBASE
@ -165,3 +170,12 @@ Example:
options PCIC_ISA_ALLOC_IOBASE=0x300
options PCIC_ISA_ALLOC_IOSIZE=0x0ff
.Ed
.Ss Interrupt conflicts
.Nx
attempts to probe for available interrupts to assign to
.Tn PCMCIA
devices. In some cases, it is not possible to detect
all interrupts in use; in such cases, use of
.Cd options PCIC_ISA_INTR_ALLOC_MASK
may be necessary. See
.Xr options 4 .