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/***************************************************************************
* __________ __ ___.
* 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-erosq.h"
#include "power.h"
#include "panic.h"
#include "sysfs.h"
#include "tick.h"
const char * const sysfs_bat_voltage[2] = {
"/sys/class/power_supply/battery/voltage_now",
"/sys/class/power_supply/axp_battery/voltage_now",
};
const char * const sysfs_bat_capacity[2] = {
"/sys/class/power_supply/battery/capacity",
"/sys/class/power_supply/axp_battery/capacity",
};
const char * const sysfs_bat_status[2] = {
"/sys/class/power_supply/battery/status",
"/sys/class/power_supply/axp_battery/status",
};
int hwver = 1; /* Exported */
unsigned int erosq_power_get_battery_voltage(void)
{
int battery_voltage;
int x = sysfs_get_int(sysfs_bat_voltage[hwver == 4], &battery_voltage);
if (!x && hwver != 4) {
hwver = 4;
sysfs_get_int(sysfs_bat_voltage[hwver == 4], &battery_voltage);
}
return battery_voltage/1000;
}
unsigned int erosq_power_get_battery_capacity(void)
{
int battery_capacity;
int x = sysfs_get_int(sysfs_bat_capacity[hwver == 4], &battery_capacity);
if (!x && hwver != 4) {
hwver = 4;
sysfs_get_int(sysfs_bat_capacity[hwver == 4], &battery_capacity);
}
return battery_capacity;
}
/* We get called multiple times per tick, let's cut that back! */
static long last_tick = 0;
static bool last_power = false;
bool charging_state(void)
{
if ((current_tick - last_tick) > HZ/2 ) {
char buf[12] = {0};
int x = sysfs_get_string(sysfs_bat_status[hwver == 4], buf, sizeof(buf));
if (!x && hwver != 4) {
hwver = 4;
sysfs_get_string(sysfs_bat_status[hwver == 4], buf, sizeof(buf));
}
last_tick = current_tick;
last_power = (strncmp(buf, "Charging", 8) == 0);
}
return last_power;
}
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