rockbox/firmware/target/arm/samsung/yh820/powermgmt-yh820.c

60 lines
1.9 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Heikki Hannikainen, Uwe Freese
* Revisions copyright (C) 2005 by Gerald Van Baren
*
* 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"
/* TODO: Not yet calibrated */
const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
{
3695
};
const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
{
3627
};
/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
{
{ 3695, 3714, 3772, 3791, 3811, 3850, 3908, 3985, 4024, 4111, 4198 }
};
/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
const unsigned short percent_to_volt_charge[11] =
{
3850, 3888, 3927, 3966, 4024, 4063, 4111, 4150, 4198, 4237, 4286
};
#define BATTERY_SCALE_FACTOR 4650
/* full-scale ADC readout (2^10) in millivolt */
/* Returns battery voltage from ADC [millivolts] */
unsigned int battery_adc_voltage(void)
{
/* return (adc_read(ADC_UNREG_POWER) * BATTERY_SCALE_FACTOR) >> 10; */
return 4100;
}