2007-08-17 06:45:18 +00:00
|
|
|
/***************************************************************************
|
|
|
|
|
* __________ __ ___.
|
|
|
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
|
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
|
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
|
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
|
|
|
* \/ \/ \/ \/ \/
|
|
|
|
|
* $Id$
|
|
|
|
|
*
|
|
|
|
|
* Copyright (C) 2002 by Heikki Hannikainen, Uwe Freese
|
|
|
|
|
* Revisions copyright (C) 2005 by Gerald Van Baren
|
|
|
|
|
*
|
2008-06-28 18:10:04 +00:00
|
|
|
* 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.
|
2007-08-17 06:45:18 +00:00
|
|
|
*
|
|
|
|
|
* 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] =
|
|
|
|
|
{
|
|
|
|
|
3380
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
|
|
|
|
|
{
|
|
|
|
|
3020
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
|
|
|
|
|
const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
|
|
|
|
|
{
|
|
|
|
|
/* Below 3370 the backlight starts flickering during HD access */
|
|
|
|
|
{ 3370, 3650, 3700, 3740, 3780, 3820, 3870, 3930, 4000, 4080, 4160 }
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
|
|
|
|
|
const unsigned short percent_to_volt_charge[11] =
|
|
|
|
|
{
|
|
|
|
|
/* values measured over one full charging cycle */
|
|
|
|
|
3540, 3860, 3930, 3980, 4000, 4020, 4040, 4080, 4130, 4180, 4230 /* LiPo */
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* FIX: this value is picked at random */
|
|
|
|
|
#define BATTERY_SCALE_FACTOR 4266
|
|
|
|
|
/* full-scale ADC readout (2^8) in millivolt */
|
|
|
|
|
|
|
|
|
|
/* Returns battery voltage from ADC [millivolts] */
|
|
|
|
|
unsigned int battery_adc_voltage(void)
|
|
|
|
|
{
|
|
|
|
|
return (adc_read(ADC_UNREG_POWER) * BATTERY_SCALE_FACTOR) >> 8;
|
|
|
|
|
}
|
|
|
|
|
|
