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Implement a basic uncalibrated battery reading for all as3525 targets with a lithium battery.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19189 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Bertrik Sikken 2008-11-23 15:00:44 +00:00
parent 7ff34c4012
commit 078753395d
5 changed files with 23 additions and 102 deletions
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29
firmware/target/arm/as3525/powermgmt-as3525.c
View file

@ -21,36 +21,53 @@
#include "config.h"
#include "adc.h"
#include "adc-target.h"
#include "powermgmt.h"
/* TODO */
/* TODO
Each as3525 target should probably define its own battery properties
(dangerous/shutoff battery level, discharge/charge curves) in a file
called powermgmt-<target>.c in its own sub-directory.
For now, this file provides simple uncalibrated settings to get at least
a basic reading for all as3525 targets with a lithium battery.
*/
const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
{
0
/* TODO: this is just an initial guess */
3400
};
const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
{
0
/* 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] =
{
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
/* 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] =
{
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
/* 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 1;
return (adc_read(ADC_RTCSUP) * BATTERY_SCALE_FACTOR) >> 10;
}

24
firmware/target/arm/as3525/sansa-clip/adc-target.h
View file

@ -1,24 +0,0 @@
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 ??
*
* 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.
*
****************************************************************************/
#ifndef _ADC_TARGET_H_
#define _ADC_TARGET_H_
#endif /* _ADC_TARGET_H_ */

24
firmware/target/arm/as3525/sansa-e200v2/adc-target.h
View file

@ -1,24 +0,0 @@
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 ??
*
* 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.
*
****************************************************************************/
#ifndef _ADC_TARGET_H_
#define _ADC_TARGET_H_
#endif /* _ADC_TARGET_H_ */

24
firmware/target/arm/as3525/sansa-fuze/adc-target.h
View file

@ -1,24 +0,0 @@
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 ??
*
* 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.
*
****************************************************************************/
#ifndef _ADC_TARGET_H_
#define _ADC_TARGET_H_
#endif /* _ADC_TARGET_H_ */

24
firmware/target/arm/as3525/sansa-m200v4/adc-target.h
View file

@ -1,24 +0,0 @@
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 ??
*
* 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.
*
****************************************************************************/
#ifndef _ADC_TARGET_H_
#define _ADC_TARGET_H_
#endif /* _ADC_TARGET_H_ */