555299af9f
affects all hiby targets, fiiom3k, and ibasso dx50/dx90 As well as deduplicating a small pile of code, this also implements hysteresis so we're not doing a sysfs read/lookup multiple times back-to-back every time the power management tick fires. Change-Id: I2f7672acbb36341becf67e07960c24c681270d09
54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
*
|
|
* Copyright (C) 2017 by Marcin Bukat
|
|
*
|
|
* 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.
|
|
*
|
|
****************************************************************************/
|
|
#include <sys/types.h>
|
|
#include <fcntl.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <stdio.h>
|
|
|
|
#include "system.h"
|
|
#include "power.h"
|
|
#include "panic.h"
|
|
#include "sysfs.h"
|
|
#include "usb.h"
|
|
|
|
#include "power-fiio.h"
|
|
|
|
const char * const sysfs_bat_voltage =
|
|
"/sys/class/power_supply/battery/voltage_now";
|
|
|
|
const char * const sysfs_bat_capacity =
|
|
"/sys/class/power_supply/battery/capacity";
|
|
|
|
unsigned int fiio_power_get_battery_voltage(void)
|
|
{
|
|
int battery_voltage;
|
|
sysfs_get_int(sysfs_bat_voltage, &battery_voltage);
|
|
|
|
return battery_voltage;
|
|
}
|
|
|
|
unsigned int fiio_power_get_battery_capacity(void)
|
|
{
|
|
int battery_capacity;
|
|
sysfs_get_int(sysfs_bat_capacity, &battery_capacity);
|
|
|
|
return battery_capacity * 20;
|
|
}
|