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tv q power_supply: try not to die

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tv 2016-11-10 20:50:38 +01:00
parent 67f68fe7ea
commit 9a34aea1a0
1 changed files with 75 additions and 24 deletions
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99
tv/5pkgs/q/default.nix
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@ -84,11 +84,18 @@ let
eval "$(${pkgs.gnused}/bin/sed -n '
s/^\([A-Z_]\+=[0-9A-Za-z_-]*\)$/export \1/p
' $uevent)"
if test "x''${POWER_SUPPLY_CHARGE_NOW-}" = x; then
exit # not battery
fi
case $POWER_SUPPLY_NAME in
AC)
exit # not battery
;;
esac
exec </dev/null
exec ${pkgs.gawk}/bin/awk '
function die(s) {
printf "%s: %s\n", name, s
exit 1
}
function print_hm(h, m) {
m = (h - int(h)) * 60
return sprintf("%dh%dm", h, m)
@ -115,39 +122,83 @@ let
}
END {
voltage_unit = "V"
voltage_now = ENVIRON["POWER_SUPPLY_VOLTAGE_NOW"] / 10^6
voltage_min_design = ENVIRON["POWER_SUPPLY_VOLTAGE_MIN_DESIGN"] / 10^6
current_unit = "A"
current_now = ENVIRON["POWER_SUPPLY_CURRENT_NOW"] / 10^6
power_unit = "W"
power_now = current_now * voltage_now
name = ENVIRON["POWER_SUPPLY_NAME"]
charge_unit = "Ah"
charge_now = ENVIRON["POWER_SUPPLY_CHARGE_NOW"] / 10^6
charge_full = ENVIRON["POWER_SUPPLY_CHARGE_FULL"] / 10^6
charge_ratio = charge_now / charge_full
current_unit = "A"
current_now = ENVIRON["POWER_SUPPLY_CURRENT_NOW"] / 10^6
energy_unit = "Wh"
energy_full = charge_full * voltage_min_design
energy_now = ENVIRON["POWER_SUPPLY_ENERGY_NOW"] / 10^6
energy_full = ENVIRON["POWER_SUPPLY_ENERGY_FULL"] / 10^6
printf "%s %s %d%% %.2f%s/%.2f%s %d%s/%.1f%s %s\n" \
, ENVIRON["POWER_SUPPLY_NAME"] \
, print_bar(10, charge_ratio) \
, charge_ratio * 100 \
, charge_now, charge_unit \
, current_now, current_unit \
, energy_full, energy_unit \
, power_now, power_unit \
, print_hm(charge_now / current_now)
power_unit = "W"
power_now = ENVIRON["POWER_SUPPLY_POWER_NOW"] / 10^6
voltage_unit = "V"
voltage_now = ENVIRON["POWER_SUPPLY_VOLTAGE_NOW"] / 10^6
voltage_min_design = ENVIRON["POWER_SUPPLY_VOLTAGE_MIN_DESIGN"] / 10^6
#printf "charge_now: %s\n", charge_now
#printf "charge_full: %s\n", charge_full
#printf "current_now: %s\n", current_now
#printf "energy_now: %s\n", energy_now
#printf "energy_full: %s\n", energy_full
#printf "energy_full: %s\n", ENVIRON["POWER_SUPPLY_ENERGY_FULL"]
#printf "energy_full: %s\n", ENVIRON["POWER_SUPPLY_ENERGY_FULL"] / 10^6
#printf "power_now: %s\n", power_now
#printf "voltage_now: %s\n", voltage_now
if (current_now == 0 && voltage_now != 0) {
current_now = power_now / voltage_now
}
if (power_now == 0) {
power_now = current_now * voltage_now
}
if (charge_now == 0 && voltage_min_design != 0) {
charge_now = energy_now / voltage_min_design
}
if (energy_now == 0) {
energy_now = charge_now * voltage_min_design
}
if (charge_full == 0 && voltage_min_design != 0) {
charge_full = energy_full / voltage_min_design
}
if (energy_full == 0) {
energy_full = charge_full * voltage_min_design
}
if (charge_now == 0 || charge_full == 0) {
die("unknown charge")
}
charge_ratio = charge_now / charge_full
out = out name
out = out sprintf(" %s", print_bar(10, charge_ratio))
out = out sprintf(" %d%", charge_ratio * 100)
out = out sprintf(" %.2f%s", charge_now, charge_unit)
if (current_now != 0) {
out = out sprintf("/%.1f%s", current_now, current_unit)
}
out = out sprintf(" %d%s", energy_full, energy_unit)
if (power_now != 0) {
out = out sprintf("/%.1f%s", power_now, power_unit)
}
if (current_now != 0) {
out = out sprintf(" %s", print_hm(charge_now / current_now))
}
print out
}
'
'';
in ''
for uevent in /sys/class/power_supply/*/uevent; do
${power_supply} "$uevent"
${power_supply} "$uevent" || :
done
'';