c1bd9b0361
* Introduce CONFIG_BATTERY_MEASURE define, to allow targets (application) to break powermgmt.c's assumption about the ability to read battery voltage. There's now additionally percentage (android) and remaining time measure (maemo). No measure at all also works (sdl app). If voltage can't be measured, then battery_level() is king and it'll be used for power_history and runtime estimation. * Implement target's API in the simulator, i.e. _battery_voltage(), so it doesn't need to implement it's own powermgmt.c and other stubs. Now the sim behaves much more like a native target, although it still changes the simulated battery voltage quickly, * Other changes include include renaming battery_adc_voltage() to _battery_voltage(), for consistency with the new target functions and making some of the apps code aware that voltage and runtime estimation is not always available. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31548 a1c6a512-1295-4272-9138-f99709370657
84 lines
2.6 KiB
C
84 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 "ascodec-target.h"
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#include "as3514.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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