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Allow configurations with MINPWM > MAXPWM

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These configurations would drive the PWM outputs in an "inverted mode"
where the 0 value is full fan speed and 255 stops the fan. The PWM
output adjustment algorithm works correctly in this situation.
This commit is contained in:
Maciej Grela committed 2023-03-26 17:02:22 +02:00
1 parent 42f240d2a4
commit 2568fc1073
1 file changed
+73 -24
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prog/pwm/fancontrol
+73 -24
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@@ -118,30 +118,79 @@ function LoadConfig
echo "MINTEMP must be less than MAXTEMP" >&2
exit 1
fi
if [ "${AFCMAXPWM[$fcvcount]}" -gt 255 ]
then
echo "Error in configuration file (${AFCPWM[$fcvcount]}):" >&2
echo "MAXPWM must be at most 255" >&2
exit 1
fi
if [ "${AFCMINSTOP[$fcvcount]}" -ge "${AFCMAXPWM[$fcvcount]}" ]
then
echo "Error in configuration file (${AFCPWM[$fcvcount]}):" >&2
echo "MINSTOP must be less than MAXPWM" >&2
exit 1
fi
if [ "${AFCMINSTOP[$fcvcount]}" -lt "${AFCMINPWM[$fcvcount]}" ]
then
echo "Error in configuration file (${AFCPWM[$fcvcount]}):" >&2
echo "MINSTOP must be greater than or equal to MINPWM" >&2
exit 1
fi
if [ "${AFCMINPWM[$fcvcount]}" -lt 0 ]
then
echo "Error in configuration file (${AFCPWM[$fcvcount]}):" >&2
echo "MINPWM must be at least 0" >&2
exit 1
fi
if [ "${AFCMINPWM[$fvcount]}" -lt "${AFCMAXPWM[$fvcount]}" ]; then
# Normal drive:
# PWM value 0 -> Fan not spinning
# PWM value 255 -> Fan spinning at full speed
if [ "${AFCMAXPWM[$fcvcount]}" -gt $MAX ]
then
echo "Error in configuration file (${AFCPWM[$fcvcount]}):" >&2
echo "For normal drive MAXPWM must be at most $MAX" >&2
exit 1
fi
if [ "${AFCMINSTOP[$fcvcount]}" -ge "${AFCMAXPWM[$fcvcount]}" ]
then
echo "Error in configuration file (${AFCPWM[$fcvcount]}):" >&2
echo "For normal drive MINSTOP must be less than MAXPWM" >&2
exit 1
fi
if [ "${AFCMINSTOP[$fcvcount]}" -lt "${AFCMINPWM[$fcvcount]}" ]
then
echo "Error in configuration file (${AFCPWM[$fcvcount]}):" >&2
echo "For normal drive MINSTOP must be greater than or equal to MINPWM" >&2
exit 1
fi
if [ "${AFCMINPWM[$fcvcount]}" -lt 0 ]
then
echo "Error in configuration file (${AFCPWM[$fcvcount]}):" >&2
echo "For normal drive MINPWM must be at least 0" >&2
exit 1
fi
elif [ "${AFCMINPWM[$fvcount]}" -gt "${AFCMAXPWM[$fvcount]}" ]; then
# Inverted drive:
# PWM value 255 -> Fan not spinning
# PWM value 0 -> Fan spinning at full speed
if [ "${AFCMINPWM[$fcvcount]}" -gt $MAX ]
then
echo "Error in configuration file (${AFCPWM[$fcvcount]}):" >&2
echo "For inverted drive MINPWM must be at most $MAX" >&2
exit 1
fi
if [ "${AFCMINSTOP[$fcvcount]}" -lt "${AFCMAXPWM[$fcvcount]}" ]
then
echo "Error in configuration file (${AFCPWM[$fcvcount]}):" >&2
echo "For inverted drive MINSTOP must be larger than MAXPWM" >&2
exit 1
fi
if [ "${AFCMINSTOP[$fcvcount]}" -ge "${AFCMINPWM[$fcvcount]}" ]
then
echo "Error in configuration file (${AFCPWM[$fcvcount]}):" >&2
echo "For inverted drive MINSTOP must be less than MINPWM" >&2
exit 1
fi
if [ "${AFCMAXPWM[$fcvcount]}" -lt 0 ]
then
echo "Error in configuration file (${AFCPWM[$fcvcount]}):" >&2
echo "For inverted drive MAXPWM must be at least 0" >&2
exit 1
fi
else
echo "Error in configuration file (${AFCPWM[$fcvcount]}):" >&2
echo "MINPWM and MAXPWM cannot be equal" >&2
exit 1
fi
if [ "${AFCAVERAGE[$fcvcount]}" -lt 1 ]
then
echo "Error in configuration file (${AFCPWM[$fcvcount]}):" >&2