Make the PowerMac fan control nonlinear
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Authored by jhibbits on Jan 17 2015, 2:46 AM.

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nwhitehorn

Summary

Currently, fan control is linear between the target temperature and max
temperature, which is far from ideal. This changes it to be proportional to the
distance between the current temperature and the two endpoints (target and max
temp). This also adds a hysteresis, so that fans keep going when the
temperature drops, for about 10 seconds, before slowing down.

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rS FreeBSD src repository - subversion

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jhibbits updated this revision to Diff 3221.Jan 17 2015, 2:46 AM

jhibbits retitled this revision from to Make the PowerMac fan control nonlinear.

jhibbits updated this object.

jhibbits edited the test plan for this revision. (Show Details)

jhibbits added a reviewer: nwhitehorn.

Looks good to me. Thanks for doing this!

This revision is now accepted and ready to land.Feb 19 2015, 4:17 PM

Closed in r279045

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sys/

powerpc/

powermac/

powermac_thermal.c

28 lines

Diff 3221

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sys/powerpc/powermac/powermac_thermal.c

Make the PowerMac fan control nonlinearClosedPublicActions