1123626Snjl#!/bin/sh 2123626Snjl# 3123626Snjl# Modify the power profile based on AC line state. This script is 4123626Snjl# usually called from devd(8). 5123626Snjl# 6123626Snjl# Arguments: 0x00 (AC offline, economy) or 0x01 (AC online, performance) 7123626Snjl# 8123626Snjl# $FreeBSD$ 9123626Snjl# 10123626Snjl 11123626Snjl# PROVIDE: power_profile 12168283Sdes# REQUIRE: FILESYSTEMS syslogd 13136224Smtm# KEYWORD: nojail nostart 14123626Snjl 15123626Snjl. /etc/rc.subr 16123626Snjl 17123626Snjlname="power_profile" 18174464Sdougbstop_cmd=':' 19123626SnjlLOGGER="logger -t power_profile -p daemon.notice" 20123626Snjl 21123626Snjl# Set a given sysctl node to a value. 22123626Snjl# 23123626Snjl# Variables: 24123626Snjl# $node: sysctl node to set with the new value 25123626Snjl# $value: HIGH for the highest performance value, LOW for the best 26123626Snjl# economy value, or the value itself. 27123626Snjl# $highest_value: maximum value for this sysctl, when $value is "HIGH" 28123626Snjl# $lowest_value: minimum value for this sysctl, when $value is "LOW" 29123626Snjl# 30238416Skevlosysctl_set() 31123626Snjl{ 32123626Snjl # Check if the node exists 33123626Snjl if [ -z "$(sysctl -n ${node} 2> /dev/null)" ]; then 34123626Snjl return 35123626Snjl fi 36123626Snjl 37123626Snjl # Get the new value, checking for special types HIGH or LOW 38123626Snjl case ${value} in 39123626Snjl [Hh][Ii][Gg][Hh]) 40123626Snjl value=${highest_value} 41123626Snjl ;; 42123626Snjl [Ll][Oo][Ww]) 43123626Snjl value=${lowest_value} 44123626Snjl ;; 45142572Snjl [Nn][Oo][Nn][Ee]) 46142572Snjl return 47142572Snjl ;; 48123626Snjl *) 49123626Snjl ;; 50123626Snjl esac 51123626Snjl 52123626Snjl # Set the desired value 53179965Smtm if [ -n "${value}" ]; then 54179965Smtm if ! sysctl ${node}=${value} > /dev/null 2>&1; then 55179965Smtm warn "unable to set ${node}=${value}" 56179965Smtm fi 57179965Smtm fi 58123626Snjl} 59123626Snjl 60123626Snjlif [ $# -ne 1 ]; then 61123626Snjl err 1 "Usage: $0 [0x00|0x01]" 62123626Snjlfi 63123626Snjlload_rc_config $name 64123626Snjl 65123626Snjl# Find the next state (performance or economy). 66123626Snjlstate=$1 67123626Snjlcase ${state} in 68123626Snjl0x01 | '') 69123626Snjl ${LOGGER} "changed to 'performance'" 70123626Snjl profile="performance" 71123626Snjl ;; 72123626Snjl0x00) 73123626Snjl ${LOGGER} "changed to 'economy'" 74123626Snjl profile="economy" 75123626Snjl ;; 76123626Snjl*) 77123626Snjl echo "Usage: $0 [0x00|0x01]" 78123626Snjl exit 1 79123626Snjlesac 80123626Snjl 81123626Snjl# Set the various sysctls based on the profile's values. 82123626Snjlnode="hw.acpi.cpu.cx_lowest" 83129021Snjlhighest_value="C1" 84240343Savglowest_value="Cmax" 85123626Snjleval value=\$${profile}_cx_lowest 86123626Snjlsysctl_set 87123626Snjl 88141417Snjlnode="dev.cpu.0.freq" 89142523Snjlhighest_value="`(sysctl -n dev.cpu.0.freq_levels | \ 90142523Snjl awk '{ split($0, a, "[/ ]"); print a[1] }' -) 2> /dev/null`" 91142523Snjllowest_value="`(sysctl -n dev.cpu.0.freq_levels | \ 92238009Ssbruno awk '{ split($0, a, "[/ ]"); print a[length(a) - 1] }' -) 2> /dev/null`" 93141417Snjleval value=\$${profile}_cpu_freq 94123626Snjlsysctl_set 95123626Snjl 96123626Snjlexit 0 97