1d901a82fd
Scale battery voltage ADC readings by 1023 instead of 1000, using ADC1 (substractor) instead of ADC0 (multiplicator) to get better resolution. Percent charge/discharge tables are also modified to return a similar value than the old ones. Change-Id: I2951c75faa02f4302599ec24f9156cfd209c36eb
88 lines
2.5 KiB
C
88 lines
2.5 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: powermgmt-nano2g.c 28159 2010-09-24 22:42:06Z Buschel $
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*
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* Copyright © 2008 Rafaël Carré
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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 "powermgmt.h"
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#include "pmu-target.h"
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#include "power.h"
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#include "audiohw.h"
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const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
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{
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3500
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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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3300
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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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{ 3500, 3670, 3720, 3750, 3770, 3800, 3860, 3920, 3980, 4070, 4170 }
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};
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#if CONFIG_CHARGING
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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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3700, 3820, 3900, 3950, 3990, 4030, 4070, 4120, 4170, 4190, 4200
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};
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#endif /* CONFIG_CHARGING */
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/* ADC should read 0x3ff=6.00V */
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#define BATTERY_SCALE_FACTOR 6000
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/* full-scale ADC readout (2^10) in millivolt */
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/* Returns battery voltage from ADC [millivolts] */
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int _battery_voltage(void)
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{
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int compensation = (10 * (pmu_read_battery_current() - 7)) / 12;
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if (charging_state()) return pmu_read_battery_voltage() - compensation;
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return pmu_read_battery_voltage() + compensation;
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}
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#ifdef HAVE_ACCESSORY_SUPPLY
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void accessory_supply_set(bool enable)
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{
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if (enable)
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{
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/* Accessory voltage supply on */
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//TODO: pmu_ldo_power_on(6);
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}
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else
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{
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/* Accessory voltage supply off */
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//TODO: pmu_ldo_power_off(6);
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}
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}
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#endif
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#ifdef HAVE_LINEOUT_POWEROFF
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void lineout_set(bool enable)
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{
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/* Call audio hardware driver implementation */
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audiohw_enable_lineout(enable);
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}
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#endif
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