Date: Sat, 14 Jan 2006 14:58:13 -0800 From: Sean Shapira <sds@jazzie.com> To: freebsd-drivers@freebsd.org Subject: if_ed_isa.c change to support pnp on compaq lte dock Message-ID: <43C98205.70002@jazzie.com>
next in thread | raw e-mail | index | archive | help
This is regarding 5.4-RELEASE-p9 running on a Compaq LTE (Pentium-based)
laptop connected to a docking station. A patch for if_ed_isa.c is
included below. The Compaq LTE docking station includes an
ne2000-compatible ethernet interface, and using device.hints that match
the port and irq configured in the bios works just fine when booting
from a powered-off state.
But when doing a warm boot with the same device.hints, the system hangs
when it attempts to probe the ed.0 device. The hints used are:
hint.ed.0.at="isa"
hint.ed.0.port="0x340"
hint.ed.0.irq="11"
hint.ed.0.maddr="0xd8000"
hint.ed.0.disabled="0"
The system has a plug-n-play bios that knows about this device:
PNP8160: adding irq mask 0x800
PNP8160: adding io range 0x340-0x35f, size=0x20, align=0x20
pnpbios: handle 21 device ID PNP8160 (6081d041)
But the ed driver in 5.4-RELEASE doesn't attach to it automatically.
I made the obvious change, adding the device id to the table:
*** if_ed_isa.c 2006/01/13 19:23:23 1.1
--- if_ed_isa.c 2006/01/13 19:25:18
***************
*** 59,64 ****
--- 59,65 ----
{ 0x0090252a, NULL }, /* JQE9000 */
{ 0x0020832e, NULL }, /* KTC2000 */
{ 0x4cf48906, NULL }, /* ATIf44c */
+ { 0x6081d041, NULL }, /* PNP8160 */
{ 0, NULL }
};
After removing the device.hints, the system now reports:
ed0: <PNP8160> at port 0x340-0x35f irq 11 on isa0
both on cold boots and warm restarts, and does not hang. Hurray!
Was there a better way to accomplish this? If no, can the change to add
this device id get incorporated into future FreeBSD releases?
--
Sean Shapira sds@jazzie.com
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?43C98205.70002>