port-mac68k/59228: Change request [patch]: Support for PowerBook batteries via envsys(4)

[nathanialsloss%yahoo.com.au@localhost]

>Number:         59228
>Category:       port-mac68k
>Synopsis:       Change request [patch]: Support for PowerBook batteries via envsys(4)
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    port-mac68k-maintainer
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Fri Mar 28 10:15:00 +0000 2025
>Originator:     Nat Sloss
>Release:        NetBSD 10.99.12
>Organization:
PowerBook Salvage and Rescue
>Environment:
NetBSD princess 10.99.12 NetBSD 10.99.12 (WSFBPWR) #380: Fri Mar 28 14:01:15 AEDT 2025  build@microrusty:/home/build/mac68k-new-gas/sys/arch/mac68k/compile/WSFBPWR mac68k
>Description:
The patch referenced in this PR adds support for monitoring PowerBook
1xx batteries via envsys(4).

It is heavily based on acpibat(4).
>How-To-Repeat:
Notice that envstat(8) command produces no information on the battery status.

>Fix:
Apply this patch (which I'll also post for review).

http://ftp.netbsd.org/pub/NetBSD/misc/nat/pbbat.diff

The only thing I didn't like was having to attach to aed(4) as the
driver relies on the power manager to obtain battery information and
could not be attached to adb(4) as it has no bus address as such.


Best regards,

Nat