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Diffstat (limited to 'recipes/slugos-init/files/leds')
| -rw-r--r-- | recipes/slugos-init/files/leds | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/recipes/slugos-init/files/leds b/recipes/slugos-init/files/leds new file mode 100644 index 0000000000..b40d5d874e --- /dev/null +++ b/recipes/slugos-init/files/leds @@ -0,0 +1,269 @@ +#!/bin/sh +# leds +# +# utilities to manipulate the settings of the system leds +# +# load the utility functions unless this script is being called +# just to load its own functions. +case "$1" in +leds) ;; +*) . /etc/default/rcS + . /etc/default/functions;; +esac + +# +# led_set led-dir off|on|slow|fast|panic|blink|flash|* +# set the given LED (expressed as a directory) to the +# given status. +# +led_set(){ + local setting + # expect led-dir state + if test -d "$1" + then + setting="$2" + case "$setting" in + off|on) echo -n none + + case "$setting" in + on) echo -n 255;; + off) echo -n 0;; + esac >"$1/brightness";; + + slow|fast|panic|blink|flash) + echo -n timer + + case "$setting" in + flash) echo -n 60;; + blink) echo -n 540;; + slow) echo -n 500;; + fast) echo -n 1500;; + panic) echo -n 3000;; + esac >"$1/delay_on" + + case "$setting" in + flash) echo -n 540;; + blink) echo -n 60;; + slow) echo -n 500;; + fast) echo -n 1500;; + panic) echo -n 3000;; + esac >"$1/delay_off";; + + *) echo -n "$setting";; + esac >"$1/trigger" + else + echo "leds: $1: no such directory" >&2 + return 1 + fi +} + +# +# sysled [boot] system|user|singleuser|shutdown [error|panic|*] +# set the system LEDs to indicate the given boot state, the function +# will temporarily mount sysfs is necessary (using /mnt) +# +# the cases for two LEDs (ready+status) +sysled_readystatus(){ + local ready status + # expect dir [boot](system|user) [error|panic] + case "$3" in + error) ready=fast; status=off;; + panic) ready=fast; status=fast;; + *) case "$2" in + bootsystem) ready=slow; status=slow;; + system) ready=on; status=on;; + bootuser) ready=on; status=slow;; + user) ready=user; status=off;; + bootsingleuser) ready=on; status=slow;; + singleuser) ready=user; status=user;; + bootshutdown) ready=on; status=slow;; + shutdown) ready=slow; status=on;; + esac;; + esac + + led_set "$1/$ready_led_name" "$ready" + led_set "$1/$status_led_name" "$status" +} +# +# the cases for one LED (just ready) +sysled_ready(){ + local ready + # expect dir [boot](system|user) [error|panic] + case "$3" in + error) ready=fast;; + panic) ready=panic;; + *) case "$2" in + bootsystem) ready=flash;; + system) ready=blink;; + bootuser) ready=slow;; + user) ready=user;; + bootsingleuser) ready=flash;; + singleuser) ready=blink;; + bootshutdown) ready=slow;; + shutdown) ready=blink;; + esac;; + esac + + led_set "$1/$ready_led_name" "$ready" +} +# +# the cases for one blue flashing LED (just power) +sysled_power(){ + local power + # expect dir [boot](system|user) [error|panic] + case "$3" in + error) power=off;; + panic) power=off;; + *) case "$2" in + bootsystem) power=off;; # blinking + system) power=off;; # blinking + bootuser) power=on;; + user) power=on;; + bootsingleuser) power=off;; # blinking + singleuser) power=off;; # blinking + bootshutdown) power=off;; # blinking + shutdown) power=off;; # blinking + esac;; + esac + + led_set "$1/$power_led_name" "$power" +} +# +sysled(){ + local mp st boot isst + mp=/sys + st=1 + boot= + + # validate arguments + if test "$1" = boot + then + shift + boot=boot + fi + case "$1" in + system|user|singleuser|shutdown) :;; + *) echo "sysled: unknown option '$1'" >&2 + echo " usage: sysled [boot] system|user|singleuser|shutdown [error|panic|*]" >&2 + return 1;; + esac + + if test ! -d "$mp/class/leds" && mount -t sysfs sysfs /mnt + then + mp=/mnt + fi + # + # check for the 'ready' LED - otherwise check for a 'power' LED + if test -d "$mp/class/leds/$ready_led_name" + then + if test -d "$mp/class/leds/$status_led_name" + then + sysled_readystatus "$mp/class/leds" $boot"$@" + else + sysled_ready "$mp/class/leds" $boot"$@" + fi + else + if test -d "$mp/class/leds/$power_led_name" + then + sysled_power "$mp/class/leds" $boot"$@" + fi + fi + # + # clean up + test "$mp" = /mnt && umount /mnt + return "$st" +} + +# +# beep {arguments} +# emit a beep +# does nothing if there is no beep executable, is very +# quiet in the presence of errors +beep(){ + local arg devices module + arg= + test "$1" = beep && shift + if test -x /bin/beep + then + devices=`ls -d /sys/class/input/event* 2>/dev/null` + for device in $devices + do + module=`egrep PHYSDEVDRIVER $device'/uevent' | cut -d '=' -f 2` + if test "$module" = "ixp4xx-beeper"; + then + devnode=`echo "$device" | cut -d '/' -f 5` + arg="-e /dev/input/"$devnode + break + fi + done + /bin/beep $arg "$@" 2>/dev/null + fi + return 0 +} + +# +# leds_help +# be helpful +# leds <led> off|on|slow|fast|panic|blink|flash|user|* +# leds [boot] system|user|singleuser|shutdown [error|panic|*] +leds_help(){ + echo "leds: change the setting of the LEDs" >&2 + echo " usage:" >&2 + echo " leds [boot] system|user|singleuser|shutdown [error|panic|*]" >&2 + echo " set leds during system boot to indicate a particular boot" >&2 + echo " state. 'boot' means that the system is transitioning to" >&2 + echo " the new state. 'error' or 'panic' means a (potentially)" >&2 + echo " recoverable error or an unrecoverable error ('panic') has" >&2 + echo " occured." >&2 + echo " <led> off|on|slow|fast|panic|blink|flash" >&2 + echo " set the named led to the given display." >&2 + echo " beep {args}" >&2 + echo " if possible cause the machine to emit a beep" >&2 +} + +# Define the LED names based on kernel version. +version=$(uname -r | cut -c -6) +if [ "$version" \< "2.6.25" ]; then + status_led_name="status" + ready_led_name="ready" + power_led_name="power" +else + case "$(machine)" in + dsmg600) + status_led_name="none" + ready_led_name="none" + power_led_name="dsmg600:green:power" + ;; + fsg3) + status_led_name="none" + ready_led_name="fsg:blue:sync" + power_led_name="none" + ;; + nas100d) + status_led_name="none" + ready_led_name="none" + power_led_name="nas100d:blue:power" + ;; + nslu2) + status_led_name="nslu2:red:status" + ready_led_name="nslu2:green:ready" + power_led_name="none" + ;; + esac +fi + +# the real command, if required +case "$1" in +boot|system|user|singleuser|shutdown) + sysled "$@";; + +beep) beep "$@";; + +""|-*) leds_help;; +help) leds_help;; + +leds) # just load the functions + ;; + +*) led_set /sys/class/leds/"$@" +esac |