diff --git a/ascanius/hardware-configuration.nix b/ascanius/hardware-configuration.nix index dd405a8..aebe3d0 100644 --- a/ascanius/hardware-configuration.nix +++ b/ascanius/hardware-configuration.nix @@ -4,7 +4,7 @@ { imports = [ - ../modules/powerdown.nix + ./powerdown.nix ]; hardware.cpu.intel.updateMicrocode = true; diff --git a/modules/powerdown.nix b/ascanius/powerdown.nix similarity index 79% rename from modules/powerdown.nix rename to ascanius/powerdown.nix index e9b31b0..dc94d5d 100644 --- a/modules/powerdown.nix +++ b/ascanius/powerdown.nix @@ -1,14 +1,13 @@ { config, lib, pkgs, ... }: let - powersw = "/etc/powerdown/powerswitch"; - powerswpath = [ pkgs.hdparm pkgs.iw pkgs.gawk pkgs.kmod ]; + pd = pkgs.callPackage ./powerdown {}; + powersw = "${pd}/bin/powerswitch"; in { # the scripts are pretty heavily modified. # from https://github.com/march-linux/powerdown - services.udev.path=powerswpath; services.udev.extraRules = '' SUBSYSTEM=="power_supply", ATTR{online}=="0", RUN+="${powersw}" SUBSYSTEM=="power_supply", ATTR{online}=="1", RUN+="${powersw}" @@ -19,7 +18,6 @@ in wantedBy = [ "multi-user.target" "suspend.target" ]; after = [ "suspend.target" "display-manager.service" ]; description = "Run powerswitch sometimes"; - path = powerswpath; preStart = "sleep 4s"; serviceConfig = { Type = "oneshot"; diff --git a/ascanius/powerdown/Makefile b/ascanius/powerdown/Makefile new file mode 100755 index 0000000..fde6036 --- /dev/null +++ b/ascanius/powerdown/Makefile @@ -0,0 +1,6 @@ +install: + install -m 644 -D powerdown-functions $(DESTDIR)/lib/powerdown-functions + install -D powerdown $(DESTDIR)/bin/powerdown + install -D powerup $(DESTDIR)/bin/powerup + install -D powernow $(DESTDIR)/bin/powernow + install -D powerswitch $(DESTDIR)/bin/powerswitch diff --git a/ascanius/powerdown/default.nix b/ascanius/powerdown/default.nix new file mode 100644 index 0000000..9e68d03 --- /dev/null +++ b/ascanius/powerdown/default.nix @@ -0,0 +1,19 @@ +{ pkgs ? import {} }: +let + inherit (pkgs) stdenv makeWrapper lib; + powerswpackages = with pkgs; [ hdparm iw gawk kmod ]; + powerswpath = lib.makeBinPath powerswpackages; +in +stdenv.mkDerivation rec { + name = "powerdown"; + src = ./.; + buildPhase = "true"; + nativeBuildInputs = [ makeWrapper ]; + makeFlags = "DESTDIR=$(out)"; + postInstall = '' + wrapProgram $out/bin/powerup --prefix PATH : ${powerswpath} + wrapProgram $out/bin/powerdown --prefix PATH : ${powerswpath} + wrapProgram $out/bin/powernow --prefix PATH : ${powerswpath} + wrapProgram $out/bin/powerswitch --prefix PATH : ${powerswpath} + ''; +} diff --git a/ascanius/powerdown/license.txt b/ascanius/powerdown/license.txt new file mode 100644 index 0000000..d159169 --- /dev/null +++ b/ascanius/powerdown/license.txt @@ -0,0 +1,339 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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If this is what you want to do, use the GNU Lesser General +Public License instead of this License. diff --git a/ascanius/powerdown/powerdown b/ascanius/powerdown/powerdown new file mode 100755 index 0000000..c024a5b --- /dev/null +++ b/ascanius/powerdown/powerdown @@ -0,0 +1,55 @@ +#!/usr/bin/env bash +# powerdown - powersave script +# please use this with xset dpms, hdparm + +if [[ $EUID != 0 ]]; then + echo "[powerdown] must be run as root" + exit 1 +fi + +source $( dirname "${BASH_SOURCE[0]}" )/../lib/powerdown-functions +lock + +# bus +for i in /sys/bus/*/devices/*/power/control; do opt "$i" auto; done + +# usb autosuspend +for i in /sys/bus/usb/devices/*/power/autosuspend; do opt "$i" 10; done +usb_powersave + +# nmi_watchdog +opt /proc/sys/kernel/nmi_watchdog 0 + +# cpu +for i in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do opt "$i" powersave; done +#load_mod msr + +# kernel write mode +opt /proc/sys/vm/laptop_mode 5 +opt /proc/sys/vm/dirty_ratio 90 +opt /proc/sys/vm/dirty_background_ratio 1 +opt /proc/sys/vm/dirty_expire_centisecs 60000 +opt /proc/sys/vm/dirty_writeback_centisecs 60000 + +# disk +for i in /sys/class/scsi_host/host*/link_power_management_policy; do opt "$i" min_power; done +hdparm -y /dev/sda +#for dev in $(awk '/^\/dev\/sd/ {print $1}' /etc/mtab); do run blockdev --setra 4096 "$dev"; done + +# sound card +opt /sys/module/snd_hda_intel/parameters/power_save 1 +opt /sys/module/snd_hda_intel/parameters/power_save_controller Y + +# net +for i in $(iw dev | awk '$1 == "Interface" { print $2 }'); do run iw dev "$i" set power_save on; done + +# screen +for i in /sys/class/backlight/*; do opt "$i/brightness" "$(num_scale "$i/max_brightness" 1)"; done + +# webcam +#unload_mod_recursive videodev + +# bluetooth +#unload_mod_recursive bluetooth + +exit 0 diff --git a/ascanius/powerdown/powerdown-functions b/ascanius/powerdown/powerdown-functions new file mode 100755 index 0000000..ff7e40a --- /dev/null +++ b/ascanius/powerdown/powerdown-functions @@ -0,0 +1,154 @@ +#!/usr/bin/env bash +# powerdown-functions + +shopt -s nullglob extglob + +# turn on kernel options +opt() { + [[ -f "$1" ]] || return + [[ -w "$1" ]] && echo "$2" | tee "$1" &>/dev/null || echo "[powerdown] cannot write $2 to $1" +} + +# unload kernel module +unload_mod() { + has_mod "$1" || return + modprobe -r "$1" || echo "[powerdown] cannot unload module $1" +} + +unload_mod_recursive() { + local dep + for dep in $(lsmod | awk -v mod="$1" '$1==mod {gsub(",", " ", $4); print $4}'); do + unload_mod_recursive "$dep" + done + unload_mod "$1" +} + +# load kernel module +load_mod() { + has_mod "$1" || return + modprobe "$1" || echo "[powerdown] cannot load module $1" +} + +# module exists +has_mod() { + modprobe -nq "$1" +} + +# module loaded +mod_loaded() { + grep -qs "^$1 " /proc/modules +} + +# brightness scale 0 to 5 +# $1 = max file +# $2 = value +num_scale() { + echo $(($(< "$1") / 5 * $2)) +} + +# command +run() { + "$@" &> /dev/null || echo "[powerdown] cannot run $@" +} + +has_bat() { + local bat + for bat in /sys/class/power_supply/BAT*; do + return 0 + done + return 1 +} + +# get current power usage +display_power() { + if ! has_bat; then + echo "[powerdown] no battery" + return + fi + local bat + for bat in /sys/class/power_supply/BAT*; do + local watt + if [[ -f "$bat/power_now" ]]; then + watt="$(bc <<< "scale=3; $(< "$bat/power_now") / 1000000")" + else + watt="$(bc <<< "scale=3; $(< "$bat/current_now") * $(< "$bat/voltage_now") / 1000000000000")" + fi + echo "[powerdown] $(basename "$bat") using $watt watts" + done +} + +# get readahead +display_readahead() { + echo "- $1 readahead: $(blockdev --getra "$1")" +} + +# dump kernel option content +dump () { + [[ -r "$1" ]] || return + echo "- $1: $(< "$1")" +} + +display_module() { + has_mod "$1" || return + echo -n "- $1 " + mod_loaded "$1" && echo "loaded" || echo "not loaded" +} + +display_wireless() { + echo "- $1 $(iw dev "$1" get power_save)" +} + +hibernate_offset() { + filefrag -v /hibernate | awk 'NR==4 {print $4}' | tr -d . +} + +root_part() { + df / | awk 'NR==2 {print $1}' +} + +has_swap_part () { + grep -qs swap /etc/fstab +} + +can_suspend_to_disk () { + [[ -f /hibernate ]] || has_swap_part +} + +swap_part() { + awk '$3=="swap" {print $1; exit}' /etc/fstab +} + +resume_boot_option() { + if [[ -f /hibernate ]]; then + echo "resume=$(root_part) resume_offset=$(hibernate_offset)" + elif has_swap_part; then + echo "resume=$(swap_part)" + fi +} + +# lock the file until the script finishes +lock() { + local LOCK=/tmp/powerdown.lock + if ! mkdir "$LOCK" 2> /dev/null; then + echo "Working... $LOCK" + exit + fi + trap "rm -rf $LOCK" EXIT +} + +# $1 = device path +is_usb_hid() { + local subdev + for subdev in $1/*:*; do + # USB_DEVICE_CLASS 3 = HID + [[ "$(< "$subdev/bInterfaceClass")" == 03 ]] && return 0 + done + return 1 +} + +usb_powersave() { + local usbdev + for usbdev in /sys/bus/usb/devices/+([^:]); do + is_usb_hid "$usbdev" && opt "$usbdev/power/control" on || opt "$usbdev/power/control" auto + done +} diff --git a/ascanius/powerdown/powernow b/ascanius/powerdown/powernow new file mode 100755 index 0000000..3902444 --- /dev/null +++ b/ascanius/powerdown/powernow @@ -0,0 +1,57 @@ +#!/usr/bin/env bash +# powerdown - get energy usagei + +if [[ $EUID != 0 ]]; then + echo "[powerdown] must be run as root" + exit 1 +fi + +source $( dirname "${BASH_SOURCE[0]}" )/../lib/powerdown-functions + +lock +display_power +echo + +# nmi_watchdog +dump /proc/sys/kernel/nmi_watchdog + +# cpu +for i in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do dump "$i"; done + +# aspm +dump /sys/module/pcie_aspm/parameters/policy + +# kernel write mode +dump /proc/sys/vm/laptop_mode +dump /proc/sys/vm/dirty_ratio +dump /proc/sys/vm/dirty_background_ratio +dump /proc/sys/vm/dirty_expire_centisecs +dump /proc/sys/vm/dirty_writeback_centisecs + + +# disk +for dev in $(awk '/^\/dev\/sd/ {print $1}' /etc/mtab); do display_readahead "$dev"; done +for i in /sys/class/scsi_host/host*/link_power_management_policy; do dump "$i"; done + +# sound card +dump /sys/module/snd_hda_intel/parameters/power_save +dump /sys/module/snd_hda_intel/parameters/power_save_controller +dump /sys/module/snd_ac97_codec/parameters/power_save + +# net +for i in $(iw dev | awk '$1 == "Interface" { print $2 }'); do display_wireless "$i"; done + +# screen +for i in /sys/class/backlight/*; do dump "$i/brightness"; done + +# webcam +display_module videodev + +# bluetooth +display_module bluetooth + +# i915 +dump /sys/module/i915/parameters/i915_enable_rc6 +dump /sys/module/i915/parameters/lvds_downclock +dump /sys/module/i915/parameters/i915_enable_fbc +for i in /sys/kernel/debug/dri/*/i915_max_freq; do dump "$i"; done diff --git a/ascanius/powerdown/powerswitch b/ascanius/powerdown/powerswitch new file mode 100755 index 0000000..c4c63db --- /dev/null +++ b/ascanius/powerdown/powerswitch @@ -0,0 +1,7 @@ +#!/usr/bin/env bash +if [ `cat /sys/class/power_supply/AC/online` -eq 1 ] +then + $( dirname "${BASH_SOURCE[0]}" )/powerup +else + $( dirname "${BASH_SOURCE[0]}" )/powerdown +fi diff --git a/ascanius/powerdown/powerup b/ascanius/powerdown/powerup new file mode 100755 index 0000000..155394d --- /dev/null +++ b/ascanius/powerdown/powerup @@ -0,0 +1,57 @@ +#!/usr/bin/env bash +# powerdown - powerup +# + +if [[ $EUID != 0 ]]; then + echo "[powerdown] must be run as root" + exit 1 +fi + +source $( dirname "${BASH_SOURCE[0]}" )/../lib/powerdown-functions +lock + +# bus +for i in /sys/bus/*/devices/*/power/control; do opt "$i" on; done + +# usb autosuspend +for i in /sys/bus/usb/devices/*/power/autosuspend; do opt "$i" 600; done +for i in /sys/bus/usb/devices/*/power/control; do opt "$i" on; done + +# nmi_watchdog +opt /proc/sys/kernel/nmi_watchdog 1 + +# cpu +for i in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do opt "$i" performance; done + + +# kernel write mode +opt /proc/sys/vm/laptop_mode 0 +opt /proc/sys/vm/dirty_ratio 20 +opt /proc/sys/vm/dirty_background_ratio 10 +opt /proc/sys/vm/dirty_expire_centisecs 3000 +opt /proc/sys/vm/dirty_writeback_centisecs 500 + +# disk +for i in /sys/class/scsi_host/host*/link_power_management_policy; do opt "$i" medium_power; done +hdparm -y /dev/sda + +# sound card +opt /sys/module/snd_hda_intel/parameters/power_save 0 +opt /sys/module/snd_hda_intel/parameters/power_save_controller Y + +# net +for i in $(iw dev | awk '$1 == "Interface" { print $2 }'); do run iw dev "$i" set power_save off; done + +# screen +for i in /sys/class/backlight/*; do opt "$i/brightness" "$(num_scale "$i/max_brightness" 5 )"; done + +# webcam +load_mod videodev + +# bluetooth +load_mod bluetooth + + +# i915 +#opt /sys/module/i915/parameters/i915_enable_rc6 0 +exit 0