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authortv <tv@krebsco.de>2016-11-10 20:50:38 +0100
committertv <tv@krebsco.de>2016-11-10 20:50:38 +0100
commit9a34aea1a07e6a50d2f1b90c1dc2b3c3748db453 (patch)
treed75b849245ab3c13e4e7779e043c70dbfb84762c /tv/5pkgs/q
parent67f68fe7ea55b57c5a3e69470266386549709787 (diff)
tv q power_supply: try not to die
Diffstat (limited to 'tv/5pkgs/q')
-rw-r--r--tv/5pkgs/q/default.nix97
1 files changed, 74 insertions, 23 deletions
diff --git a/tv/5pkgs/q/default.nix b/tv/5pkgs/q/default.nix
index 7e2a30c3e..a3a7cd739 100644
--- a/tv/5pkgs/q/default.nix
+++ b/tv/5pkgs/q/default.nix
@@ -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
+ 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
current_unit = "A"
current_now = ENVIRON["POWER_SUPPLY_CURRENT_NOW"] / 10^6
+ energy_unit = "Wh"
+ energy_now = ENVIRON["POWER_SUPPLY_ENERGY_NOW"] / 10^6
+ energy_full = ENVIRON["POWER_SUPPLY_ENERGY_FULL"] / 10^6
+
power_unit = "W"
- power_now = current_now * voltage_now
+ 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_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
- energy_unit = "Wh"
- energy_full = charge_full * voltage_min_design
-
- 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)
+ 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
'';