b5acab1bcf
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16122 a1c6a512-1295-4272-9138-f99709370657
58 lines
1.9 KiB
C
58 lines
1.9 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 by Heikki Hannikainen, Uwe Freese
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* Revisions copyright (C) 2005 by Gerald Van Baren
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include "adc.h"
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#include "powermgmt.h"
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const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
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{
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3400
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};
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const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
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{
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3300
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};
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/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
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const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
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{
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/* Sansa Li Ion 750mAH, took from battery benchs */
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{ 3300, 3680, 3740, 3760, 3780, 3810, 3870, 3930, 3970, 4070, 4160 },
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};
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/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
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const unsigned short percent_to_volt_charge[11] =
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{
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/* Sansa Li Ion 750mAH FIXME */
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3300, 3680, 3740, 3760, 3780, 3810, 3870, 3930, 3970, 4070, 4160
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};
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/* ADC should read 0x3ff=5.12V */
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#define BATTERY_SCALE_FACTOR 5125
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/* full-scale ADC readout (2^10) in millivolt */
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/* Returns battery voltage from ADC [millivolts] */
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unsigned int battery_adc_voltage(void)
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{
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return (adc_read(ADC_UNREG_POWER) * BATTERY_SCALE_FACTOR) >> 10;
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}
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