119 lines
2.3 KiB
Perl
Executable File
119 lines
2.3 KiB
Perl
Executable File
#!/usr/bin/perl
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use strict;
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use warnings "all";
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use Fcntl;
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$0 = 'acpid.pl';
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my $debug = 0;
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sub logger ($) {
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if ($debug != 0) {
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my $msg = shift;
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$msg = localtime() . ' ' . $msg;
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syswrite STDOUT, $msg;
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}
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}
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my $base = '/sys/class/power_supply/BAT0';
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unless(-f "$base/present") {
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logger("Battery info at /sys/class/BAT0/present not found, quitting.\n");
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exit 0;
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}
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my $battery_present = 2;
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my $battery_check = 2;
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my $charging = 2;
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while ( sleep(180) ) {
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# check that battery is in place
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open(ACPI, "$base/present") or next;
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my $buf = '';
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if (read(ACPI, $buf, 1)) {
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if ($battery_check == 0) {
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logger("Ability to read from /sys/class/BAT0/present restored\n");
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$battery_check = 1;
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}
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if ($buf == '0') {
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if ($battery_present != 0) {
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logger("We have no battery, skipping charge level polling until it appears\n");
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$battery_present = 0;
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}
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close ACPI;
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next;
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}
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} else {
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if ($battery_check != 0) {
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logger("Unable to read from /sys/class/BAT0/present\n");
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$battery_check = 0;
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}
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close ACPI;
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next;
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}
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close ACPI;
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$battery_present = 1;
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# check status, we have no need to poll battery if it charging/charged
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unless (-f "$base/status") {
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logger("Something broken in /sys, unable to find $base/status, quitting\n");
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exit 1;
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}
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# TODO: file access save state and print on change
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open(STATUS, "$base/status") or do {
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logger("Unable to open $base/status\n");
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next;
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};
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$buf = <STATUS>;
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close STATUS;
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chomp($buf);
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if ($buf ne 'Discharging') {
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if ($charging != 1) {
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logger("Battery charging.\n");
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$charging = 1;
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}
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next;
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} else {
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if ($charging != 0) {
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logger("Battery discharging.\n");
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$charging = 0;
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}
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}
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# read charge state
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unless (-f "$base/capacity") {
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logger("Something broken in /sys, unable to find $base/capacity, quitting\n");
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exit 1;
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}
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# TODO: file access save state and print on change
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open(CHARGE, "$base/capacity") or do {
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logger("Unable to open $base/capacity\n");
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next;
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};
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read(CHARGE, $buf, 3) or do {
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logger("Unable to read $base/capacity\n");
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next;
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};
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chomp($buf);
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if ($buf < 10) {
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logger("Battery charge is less than 10%, hibernating\n");
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`dbus-send --system --print-reply --dest="org.freedesktop.UPower" /org/freedesktop/UPower org.freedesktop.UPower.Hibernate`;
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} else {
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logger("Charge is $buf%\n");
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}
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}
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