Hi,
I've created new common framework on generalized power-management
interface for userland utilities.
http://people.freebsd.org/~iwasaki/acpi/power-20001229.tar.gz
This provides some PM APIs to APM applications, such as wmapm, so that
these applications can be ported smoothly to use ACPI (power
management portion). Currently following APIs are implemented;
int power_get_syspm_info(struct power_syspm_info *);
int power_get_batt_info(u_int, struct power_batt_info *);
int power_standby(void);
int power_suspend(void);
int power_hibernate(void);
And PM event notification mechanism is suggested to be implemented so far.
Sample application is included in usr.sbin/power/ which is very similar
to apm(8) but supports ACPI as well.
usr.sbin/acpi/acpibatt/ is for displaying acpi_cmbat (ACPI Control
Method Battery), can be used to verify that generalized
power-management interface is working correctly.
Note that many ACPI BIOS give us unknown battery remaining time when
ac-line is plugged in. MIB 'hw.battery.full_charge_time' can be used to
specify the full charged remaining time of batteries in minutes, like
sysctl -w hw.battery.full_charge_time=60,60
for multiple number of batteries, or
sysctl -w hw.battery.full_charge_time=120
for a battery installed.
To test them, /dev/power is required as a device control file.
% ls -l /dev/power
crw-r--r-- 1 root wheel 210, 0 12/19 04:51 /dev/power
I'll commit them at sometime early in coming century.
Any comments would be appreciated. Thanks!
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