123 lines
3.4 KiB
C
123 lines
3.4 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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*
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* Copyright (C) 2014 by Ilia Sergachev: Initial Rockbox port to iBasso DX50
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* Copyright (C) 2014 by Mario Basister: iBasso DX90 port
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* Copyright (C) 2014 by Simon Rothen: Initial Rockbox repository submission, additional features
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* Copyright (C) 2014 by Udo Schläpfer: Code clean up, additional features
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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 <stdio.h>
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#include "config.h"
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#include "debug.h"
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#include "panic.h"
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#include "debug-ibasso.h"
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#include "sysfs-ibasso.h"
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/* Based on batterymonitor with PISEN and Samsung SIII battery. */
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const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
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{
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3600
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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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3500
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};
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/*
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Averages at percent of running time from five measuremnts with PISEN and Samsung SIII battery
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during normal usage.
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Mongo default values (?)
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< 3660 (0%), < 3730 (1% - 10%), < 3780 (11% - 20%), < 3830 (21% - 40%), < 3950 (41% - 60%),
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< 4080 (61% - 80%), > 4081 (81% - 100%)
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*/
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const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
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{
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{ 3522, 3660, 3720, 3752, 3784, 3827, 3896, 3978, 4072, 4168, 4255 }
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};
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/* Copied from percent_to_volt_discharge. */
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const unsigned short percent_to_volt_charge[11] =
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{
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3500, 3544, 3578, 3623, 3660, 3773, 3782, 3853, 3980, 4130, 4360
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};
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static int _battery_present = -1;
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int _battery_voltage(void)
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{
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/*TRACE;*/
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if( (_battery_present == -1)
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&& (! sysfs_get_int(SYSFS_BATTERY_PRESENT, &_battery_present)))
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{
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/* This check is only done once at startup. */
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DEBUGF("ERROR %s: Can not get current battery availabilty.", __func__);
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_battery_present = 1;
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}
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int val;
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if(_battery_present == 1)
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{
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/* Battery is present. */
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/*
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/sys/class/power_supply/battery/voltage_now
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Voltage in microvolt.
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*/
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if(! sysfs_get_int(SYSFS_BATTERY_VOLTAGE_NOW, &val))
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{
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DEBUGF("ERROR %s: Can not get current battery voltage.", __func__);
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return 0;
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}
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}
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else
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{
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/*
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No battery, so we have to be running solely from USB power.
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This will prevent Rockbox from forcing shutdown due to low power.
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*/
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/*
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/sys/class/power_supply/usb/voltage_now
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Voltage in microvolt.
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*/
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if(! sysfs_get_int(SYSFS_USB_POWER_VOLTAGE_NOW, &val))
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{
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DEBUGF("ERROR %s: Can not get current USB voltage.", __func__);
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return 0;
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}
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}
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return(val / 1000);
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}
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