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30 lines
1.4 KiB
C
30 lines
1.4 KiB
C
#ifndef PS5UPLOAD_FAN_MAP_H
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#define PS5UPLOAD_FAN_MAP_H
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/* Pure curve -> temperature mapping (no hardware, no Sony API), kept apart from
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* fan_curve.c so the host-built ava1-ctest suite can pin it.
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*
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* What /dev/icc_fan ioctl 0xC01C8F07 takes is ONE temperature: the one the
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* firmware's own fan control works to hold. It is not a curve. Lower means
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* louder: under load the fans run as hard as it takes to stay there.
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*
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* The console's own value is NOT 60 C, as this file said until it was read
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* back: it is 91 C on FW 13.60 (CFI-1115A and CFI-7019, ioctl 0xC01C8F08). So a
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* curve "capped at stock 60" ran the fans far harder than the console does by
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* itself, whatever the curve looked like (#400, after #354). */
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/* The most we set (HW_FAN_THRESHOLD_MAX, checked in fan_curve.c). */
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#define FAN_MAP_MAX_C 80
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/* Floor, equal to HW_FAN_THRESHOLD_MIN (checked in fan_curve.c). */
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#define FAN_MAP_MIN_C 45
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/* "Leave it to the console": restore its own value and stop overriding it. */
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#define FAN_MAP_CONSOLE_OWN 0
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/* The temperature (C) for `{"points":[{"temp_c":N,"duty_pct":N},...]}`: the
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* lowest one at which the user asked for 100% duty, floored at FAN_MAP_MIN_C.
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* A curve that never asks for 100%, or only above FAN_MAP_MAX_C, maps to
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* FAN_MAP_CONSOLE_OWN. Returns -1 when the body has no readable point. */
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int fan_map_threshold(const char *points_json);
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#endif
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