28d54c6016
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25725 a1c6a512-1295-4272-9138-f99709370657
59 lines
1.9 KiB
C
59 lines
1.9 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) 2010 Marcin Bukat
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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 "config.h"
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#include "adc.h"
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#include "powermgmt.h"
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const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
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{
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3700
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};
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const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
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{
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3650
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};
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/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
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const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
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{
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/* from OF and measurements voltage range is 3.7-4.1 V */
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{ 3700, 3740, 3780, 3820, 3860, 3900, 3940, 3980, 4020, 4060, 4100 }
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};
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/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
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const unsigned short percent_to_volt_charge[11] =
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{
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/* values measured over one full charging cycle */
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3540, 3860, 3930, 3980, 4000, 4020, 4040, 4080, 4130, 4180, 4230 /* LiPo */
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};
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/* 3.33V as reference */
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#define BATTERY_SCALE_FACTOR 3330
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/* Returns battery voltage from ADC [millivolts] */
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unsigned int battery_adc_voltage(void)
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{
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return (adc_read(ADC_BATTERY) * BATTERY_SCALE_FACTOR) >> 11;
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}
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