54 lines
1.9 KiB
C
54 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
|
||
|
|
*
|
||
|
|
* 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] =
|
||
|
|
{
|
||
|
|
1050, 1150
|
||
|
|
};
|
||
|
|
|
||
|
|
const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
|
||
|
|
{
|
||
|
|
1050, 1150 /* FIXME: just copied from above, was missing in powermgmt.c */
|
||
|
|
};
|
||
|
|
|
||
|
|
/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
|
||
|
|
const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
|
||
|
|
{
|
||
|
|
/* These values are the same as for Ondio divided by 3. */
|
||
|
|
/* May need recalibration. */
|
||
|
|
{ 930, 1080, 1140, 1180, 1210, 1250, 1280, 1320, 1360, 1420, 1580 }, /* alkaline */
|
||
|
|
{ 1030, 1180, 1210, 1230, 1240, 1250, 1260, 1270, 1280, 1290, 1350 } /* NiMH */
|
||
|
|
};
|
||
|
|
|
||
|
|
/* TODO: only roughly correct */
|
||
|
|
#define BATTERY_SCALE_FACTOR 3072
|
||
|
|
/* 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;
|
||
|
|
}
|
||
|
|
|