83 lines
2.6 KiB
C
83 lines
2.6 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: powermgmt-sim.c 29543 2011-03-08 19:33:30Z thomasjfox $
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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 <sys/ioctl.h>
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#include "kernel.h"
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#include "powermgmt.h"
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#include "power.h"
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#include "file.h"
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#include "adc.h"
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#include "sc900776.h"
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const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
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{
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3470
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};
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/* the OF shuts down at this voltage */
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const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
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{
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3450
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};
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/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
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/* FIXME: This is guessed. Make proper curve using battery_bench */
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const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
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{
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{ 3450, 3502, 3550, 3587, 3623, 3669, 3742, 3836, 3926, 4026, 4200 }
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};
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#if CONFIG_CHARGING
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/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
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/* FIXME: This is guessed. Make proper curve using battery_bench */
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const unsigned short const percent_to_volt_charge[11] =
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{
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3450, 3670, 3721, 3751, 3782, 3821, 3876, 3941, 4034, 4125, 4200
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};
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unsigned int power_input_status(void)
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{
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unsigned status = POWER_INPUT_NONE;
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int fd = open("/dev/minivet", O_RDONLY);
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if (fd >= 0)
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{
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if (ioctl(fd, IOCTL_MINIVET_DET_VBUS, NULL) > 0)
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status = POWER_INPUT_MAIN_CHARGER;
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close(fd);
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}
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return status;
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}
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#endif /* CONFIG_CHARGING */
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/* Returns battery voltage from ADC [millivolts],
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* adc returns voltage in 5mV steps */
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int _battery_voltage(void)
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{
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return adc_read(3) * 5;
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}
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bool charging_state(void)
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{
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const unsigned short charged_thres = 4170;
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bool ret = (power_input_status() == POWER_INPUT_MAIN_CHARGER);
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/* dont indicate for > ~95% */
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return ret && (_battery_voltage() <= charged_thres);
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}
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