CVS commit: syssrc/sys/dev/acpi

[Bill Sommerfeld <sommerfeld%netbsd.org@localhost>]

Module Name:    syssrc
Committed By:   sommerfeld
Date:           Sun Mar 24 03:46:10 UTC 2002

Modified Files:
        syssrc/sys/dev/acpi: files.acpi
Added Files:
        syssrc/sys/dev/acpi: acpi_bat.c

Log Message:
Prototype ACPI Control Method Battery driver.

ACPI defines two different battery device interfaces: "Control Method"
batteries, in which AML methods are defined in order to get battery
status and set battery alarm thresholds, and a "Smart Battery" device,
which is an SMbus device accessed through the ACPI Embedded Controller
device; this driver knows how to attach to the former sort of device.

As a total kludge, since we haven't wired things up to sysmon/envsys
yet, we report battery status through a once-per-minute kernel printf,
so don't use this driver yet if you want your disk to spin down.

Motivated by and tested on Sony PCG-R505TL laptop, which has
nonfunctional APM.

configure as:

acpibat* at acpi ?

Sample output:

acpibat0 at acpi0: ACPI Battery
acpibat0: Sony Corp. LION
acpibat0: Design 38480mWh, Predicted 38480mWh Warn 120mWh Low 0mWh
acpibat0: discharging: 15112mV cap 25480mWh (66%) rate 16849mW
...
acpibat0: discharging: 15224mV cap 25070mWh (65%) rate 18405mW
...
acpibat0: discharging: 15200mV cap 24310mWh (63%) rate 13771mW
...
acpibat0: charging: 15768mV cap 23330mWh (60%) rate 20388mW


To generate a diff of this commit:
cvs rdiff -r0 -r1.1 syssrc/sys/dev/acpi/acpi_bat.c
cvs rdiff -r1.4 -r1.5 syssrc/sys/dev/acpi/files.acpi

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.