NAME
em4k —
ELBOX Mediator 4000 PCI bridge
driver
SYNOPSIS
em4k0 at zbus0
emmem0 at zbus0
pci* at empb0
options PCI_NETBSD_CONFIGURE
DESCRIPTION
The
em4k driver provides support for the PCI bus present on
Mediator 4000 bridge and associated PCI/Zorro daughterboards.
HARDWARE
The
em4k driver supports the following hardware:
-
-
- ELBOX Mediator PCI 4000D
-
- ELBOX Mediator PCI 4000Di
-
- ELBOX Mediator PCI 4000T
-
- ELBOX Mediator PCI 3000D
-
- ELBOX Mediator PCI 3000T
-
MK-II editions are also supported.
SEE ALSO
amiga/empb(4),
amiga/mppb(4),
amiga/p5pb(4),
pci(4)
HISTORY
The
em4k device first appeared in
NetBSD
7.0.
AUTHORS
The
em4k driver was written by
Radoslaw
Kujawa
<
radoslaw.kujawa@gmail.com>.
It was developed using information obtained through reverse engineering by
Frank Wille and
Radoslaw
Kujawa. The authors have no access to official documentation (which is
only available under NDA).
BUGS
DMA to host memory is not supported. It is unclear if the hardware supports DMA
to host memory at all. It is possible to implement DMA through bounce buffers
in graphics card memory, but this needs further research.