rockbox/firmware/target/arm/s3c2440/mini2440/powermgmt-mini2440.c

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2009 by Bob Cousins
*
* 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 "system.h"
#include "adc.h"
#include "power.h"
#include "powermgmt.h"
/* The following constants are dummy values since there is no battery */
const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
{
3450
};
const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
{
3400
};
/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
{
/* Typical Li Ion 830mAH */
{ 3480, 3550, 3590, 3610, 3630, 3650, 3700, 3760, 3800, 3910, 3990 },
};
/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
const unsigned short percent_to_volt_charge[11] =
{
/* Typical Li Ion 830mAH */
3480, 3550, 3590, 3610, 3630, 3650, 3700, 3760, 3800, 3910, 3990
};
/* Returns battery voltage from ADC [millivolts] */
/* full-scale (2^10) in millivolt */
unsigned int battery_adc_voltage(void)
{
/* Since we have no battery, return a fully charged value */
return 4000 * 1024 / 1000;
}
unsigned int input_millivolts(void)
{
unsigned int batt_millivolts = battery_voltage();
/* No battery, return nominal value */
return batt_millivolts;
}