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65 lines
2.6 KiB
65 lines
2.6 KiB
8 years ago
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diff --git a/tlp-stat.in b/tlp-stat.in
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--- a/tlp-stat.in
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+++ b/tlp-stat.in
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@@ -58,6 +58,15 @@ no_runtimepm=0
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# --- Functions
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+catparm () { # echo contents of sysfile or default if non-existent or unreadable
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+ # $1: sysfile, $2: default value
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+ local val="$(cat $1 2> /dev/null)"
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+ [ -n "$val" ] || val="$2" # sysfile nonexistent or read failed
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+
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+ printf "%s" $val
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+ return 0
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+}
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+
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printparm () { # formatted output of sysfile - general
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# $1: format, $2: sysfile, $3: namsg, $4: cutoff
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local format="$1"
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@@ -1115,9 +1124,9 @@ if [ "$show_bat" = "1" ] || [ "$show_all" = "1" ]; then
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echo
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# store values for charge / capacity calculation below
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- ed=$(cat $batd/design_capacity)
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- ef=$(cat $batd/last_full_capacity)
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- en=$(cat $batd/remaining_capacity)
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+ ed=$(catparm $batd/design_capacity 0)
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+ ef=$(catparm $batd/last_full_capacity 0)
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+ en=$(catparm $batd/remaining_capacity 0)
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# show charge + capacity
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lcnt=0
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@@ -1184,9 +1193,9 @@ if [ "$show_bat" = "1" ] || [ "$show_all" = "1" ]; then
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printparm "%-59s = ##%6d## [mW]" $batd/power_now "" 000
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# store values for charge / capacity calculation below
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- ed=$(cat $batd/energy_full_design)
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- ef=$(cat $batd/energy_full)
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- en=$(cat $batd/energy_now)
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+ ed=$(catparm $batd/energy_full_design 0)
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+ ef=$(catparm $batd/energy_full 0)
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+ en=$(catparm $batd/energy_now 0)
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elif [ -f $batd/charge_full ]; then
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printparm "%-59s = ##%6d## [mAh]" $batd/charge_full_design "" 000
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@@ -1195,9 +1204,15 @@ if [ "$show_bat" = "1" ] || [ "$show_all" = "1" ]; then
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printparm "%-59s = ##%6d## [mA]" $batd/current_now "" 000
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# store values for charge / capacity calculation below
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- ed=$(cat $batd/charge_full_design)
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- ef=$(cat $batd/charge_full)
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- en=$(cat $batd/charge_now)
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+ ed=$(catparm $batd/charge_full_design 0)
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+ ef=$(catparm $batd/charge_full 0)
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+ en=$(catparm $batd/charge_now 0)
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+
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+ else
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+ ed=0
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+ ef=0
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+ en=0
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+
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fi
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if [ $tpbat -eq 1 ]; then
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print_tp_batstate $batd/status
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