59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
|
/***************************************************************************
|
||
|
|
* __________ __ ___.
|
||
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
||
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
||
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
||
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
||
|
|
* \/ \/ \/ \/ \/
|
||
|
|
* $Id$
|
||
|
|
*
|
||
|
|
* Copyright (C) 2010 Marcin Bukat
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public License
|
||
|
|
* as published by the Free Software Foundation; either version 2
|
||
|
|
* of the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
||
|
|
* KIND, either express or implied.
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
#include "config.h"
|
||
|
|
#include "adc.h"
|
||
|
|
#include "powermgmt.h"
|
||
|
|
|
||
|
|
const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
|
||
|
|
{
|
||
|
|
3600
|
||
|
|
};
|
||
|
|
|
||
|
|
const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
|
||
|
|
{
|
||
|
|
3500
|
||
|
|
};
|
||
|
|
|
||
|
|
/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
|
||
|
|
const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
|
||
|
|
{
|
||
|
|
{ 3500, 3566, 3597, 3619, 3644, 3676, 3732, 3806, 3868, 3937, 4004 }
|
||
|
|
};
|
||
|
|
|
||
|
|
/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
|
||
|
|
const unsigned short percent_to_volt_charge[11] =
|
||
|
|
{
|
||
|
|
/* values measured over one full charging cycle */
|
||
|
|
3386, 3872, 3904, 3942, 3996, 4029, 4033, 4036, 4038, 4039, 4041
|
||
|
|
};
|
||
|
|
|
||
|
|
/* 3.33V as reference */
|
||
|
|
#define BATTERY_SCALE_FACTOR 3330
|
||
|
|
|
||
|
|
|
||
|
|
/* Returns battery voltage from ADC [millivolts] */
|
||
|
|
unsigned int battery_adc_voltage(void)
|
||
|
|
{
|
||
|
|
return (adc_read(ADC_BATTERY) * BATTERY_SCALE_FACTOR) >> 11;
|
||
|
|
}
|
||
|
|
|