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806b71b2ed
Several hosted targets read their battery state from a fixed sysfs path. Get rid of the duplicated code by handling this common case in power-linux.c. Some targets use non-standard units in sysfs instead of the typical microvolts / microamps, so allow the scale factors to be overridden by the target. Change-Id: I31dc4ffc7a2d2c066d00a74070f9f9849c1663d0
40 lines
1.6 KiB
C
40 lines
1.6 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2025 Hairo R. Carela
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "powermgmt.h"
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#include "power.h"
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/* System handles powering off at 2% */
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unsigned short battery_level_disksafe = 0;
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unsigned short battery_level_shutoff = 0;
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/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
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/* read from /sys/class/power_supply/axp20x-battery/voltage_now */
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/* in 5s intervals and averaged out */
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unsigned short percent_to_volt_discharge[11] =
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{
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3400, 3597, 3665, 3701, 3736, 3777, 3824, 3882, 3944, 4023, 4162
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};
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/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
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unsigned short percent_to_volt_charge[11] =
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{
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3512, 3729, 3795, 3831, 3865, 3906, 3953, 4010, 4072, 4150, 4186
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};
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