rockbox/firmware/target/arm/s5l8700/ipodnano2g/powermgmt-nano2g.c
2009-09-17 07:26:08 +00:00

65 lines
2.1 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright © 2008 Rafaël Carré
*
* 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 "adc-target.h"
#include "powermgmt.h"
const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
{
/* TODO: this is just an initial guess */
3400
};
const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
{
/* TODO: this is just an initial guess */
3300
};
/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
{
/* TODO: simple uncalibrated curve, linear except for first 10% */
{ 3300, 3390, 3480, 3570, 3660, 3750, 3840, 3930, 4020, 4110, 4200 }
};
#if CONFIG_CHARGING
/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
const unsigned short percent_to_volt_charge[11] =
{
/* TODO: simple uncalibrated curve, linear except for first 10% */
3300, 3390, 3480, 3570, 3660, 3750, 3840, 3930, 4020, 4110, 4200
};
#endif /* CONFIG_CHARGING */
/* ADC should read 0x3ff=5.12V */
#define BATTERY_SCALE_FACTOR 5125
/* full-scale ADC readout (2^10) in millivolt */
/* Returns battery voltage from ADC [millivolts] */
unsigned int battery_adc_voltage(void)
{
return 4000;
}