59 lines
2 KiB
C
59 lines
2 KiB
C
|
/***************************************************************************
|
||
|
|
* __________ __ ___.
|
||
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
||
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
||
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
||
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
||
|
|
* \/ \/ \/ \/ \/
|
||
|
|
* $Id$
|
||
|
|
*
|
||
|
|
* Copyright (C) 2002 by Heikki Hannikainen, Uwe Freese
|
||
|
|
* Revisions copyright (C) 2005 by Gerald Van Baren
|
||
|
|
*
|
||
|
|
* All files in this archive are subject to the GNU General Public License.
|
||
|
|
* See the file COPYING in the source tree root for full license agreement.
|
||
|
|
*
|
||
|
|
* 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] =
|
||
|
|
{
|
||
|
|
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] =
|
||
|
|
{
|
||
|
|
/* Toshiba Gigabeat Li Ion 830mAH figured from discharge curve */
|
||
|
|
{ 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] =
|
||
|
|
{
|
||
|
|
/* Toshiba Gigabeat Li Ion 830mAH */
|
||
|
|
3480, 3550, 3590, 3610, 3630, 3650, 3700, 3760, 3800, 3910, 3990
|
||
|
|
};
|
||
|
|
|
||
|
|
/* ADC[0] is (530) at discharge and 625 at full charge */
|
||
|
|
#define BATTERY_SCALE_FACTOR 6605
|
||
|
|
/* 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;
|
||
|
|
}
|
||
|
|
|