rockbox/firmware/target/arm/iriver/h10/powermgmt-h10.c

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/***************************************************************************
* __________ __ ___.
* 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] =
{
#ifdef IRIVER_H10
3760
#elif defined IRIVER_H10_5GB
3720
#endif
};
const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
{
#ifdef IRIVER_H10
3650
#elif defined IRIVER_H10_5GB
3650
#endif
};
/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
{
#ifdef IRIVER_H10
{ 3760, 3800, 3850, 3870, 3900, 3950, 4020, 4070, 4110, 4180, 4240 }
#elif defined IRIVER_H10_5GB
{ 3720, 3740, 3800, 3820, 3840, 3880, 3940, 4020, 4060, 4150, 4240 }
#endif
};
/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
const unsigned short percent_to_volt_charge[11] =
{
#ifdef IRIVER_H10
3990, 4030, 4060, 4080, 4100, 4120, 4150, 4180, 4220, 4260, 4310
#elif defined IRIVER_H10_5GB
/* TODO: Not yet calibrated */
3880, 3920, 3960, 4000, 4060, 4100, 4150, 4190, 4240, 4280, 4330
#endif
};
#define BATTERY_SCALE_FACTOR 4800
/* 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;
}