From 0fac492c3da8b46ad1cf5a668e5d851c63443a94 Mon Sep 17 00:00:00 2001 From: Jens Arnold Date: Fri, 17 Aug 2007 06:45:18 +0000 Subject: First step of powermanagement rework: * Move target specific stuff into target tree, starting with battery voltage tables and voltage reading. (This revealed some incorrect percent_to_voltage_charging mappings). * Voltage reading on 1st gen ipods is now correct. * Clean up obsolete config #defines. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14375 a1c6a512-1295-4272-9138-f99709370657 --- .../arm/s3c2440/gigabeat-fx/powermgmt-meg-fx.c | 58 ++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 firmware/target/arm/s3c2440/gigabeat-fx/powermgmt-meg-fx.c (limited to 'firmware/target/arm/s3c2440/gigabeat-fx/powermgmt-meg-fx.c') diff --git a/firmware/target/arm/s3c2440/gigabeat-fx/powermgmt-meg-fx.c b/firmware/target/arm/s3c2440/gigabeat-fx/powermgmt-meg-fx.c new file mode 100644 index 0000000000..d38f41dd7b --- /dev/null +++ b/firmware/target/arm/s3c2440/gigabeat-fx/powermgmt-meg-fx.c @@ -0,0 +1,58 @@ +/*************************************************************************** + * __________ __ ___. + * 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; +} + -- cgit v1.2.3