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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
* Copyright (C) 2021 by Solomon Peachy
*
* 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 "tick.h"
#ifdef FIIO_M3K_LINUX
#include "usb.h"
#endif
#define BATTERY_STATUS_PATH "/sys/class/power_supply/" BATTERY_DEV_NAME "/status"
#define POWER_STATUS_PATH "/sys/class/power_supply/" POWER_DEV_NAME "/online"
/* 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};
sysfs_get_string(BATTERY_STATUS_PATH, buf, sizeof(buf));
last_tick = current_tick;
last_power = (strncmp(buf, "Charging", 8) == 0);
}
return last_power;
}
unsigned int power_input_status(void)
{
int present = 0;
sysfs_get_int(POWER_STATUS_PATH, &present);
#ifdef FIIO_M3K_LINUX
usb_enable(present ? true : false);
#endif
return present ? POWER_INPUT_USB_CHARGER : POWER_INPUT_NONE;
}
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