64 lines
2.7 KiB
C
64 lines
2.7 KiB
C
|
/***************************************************************************
|
||
|
|
* __________ __ ___.
|
||
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
||
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
||
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
||
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
||
|
|
* \/ \/ \/ \/ \/
|
||
|
|
*
|
||
|
|
* Samsung YP-R1 runtime USB cable detection
|
||
|
|
*
|
||
|
|
* Copyright (C) 2013 Lorenzo Miori
|
||
|
|
*
|
||
|
|
* 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/ioctl.h>
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
#define IOCTL_PMU_MAGIC 'A'
|
||
|
|
|
||
|
|
#define E_IOCTL_PMU_GET_BATT_LVL 0
|
||
|
|
#define E_IOCTL_PMU_GET_CHG_STATUS 1
|
||
|
|
#define E_IOCTL_PMU_IS_EXT_PWR 2
|
||
|
|
#define E_IOCTL_PMU_STOP_CHG 3
|
||
|
|
#define E_IOCTL_PMU_START_CHG 4
|
||
|
|
#define E_IOCTL_PMU_IS_EXT_PWR_OVP 5
|
||
|
|
#define E_IOCTL_PMU_LCD_DIM_CTRL 6
|
||
|
|
#define E_IOCTL_PMU_CORE_CTL_HIGH 7
|
||
|
|
#define E_IOCTL_PMU_CORE_CTL_LOW 8
|
||
|
|
#define E_IOCTL_PMU_TSP_USB_PWR_OFF 9
|
||
|
|
|
||
|
|
#define IOCTL_PMU_GET_BATT_LVL _IO(IOCTL_PMU_MAGIC, E_IOCTL_PMU_GET_BATT_LVL)
|
||
|
|
#define IOCTL_PMU_GET_CHG_STATUS _IO(IOCTL_PMU_MAGIC, E_IOCTL_PMU_GET_CHG_STATUS)
|
||
|
|
#define IOCTL_PMU_IS_EXT_PWR _IO(IOCTL_PMU_MAGIC, E_IOCTL_PMU_IS_EXT_PWR)
|
||
|
|
#define IOCTL_PMU_STOP_CHG _IO(IOCTL_PMU_MAGIC, E_IOCTL_PMU_STOP_CHG)
|
||
|
|
#define IOCTL_PMU_START_CHG _IO(IOCTL_PMU_MAGIC, E_IOCTL_PMU_START_CHG)
|
||
|
|
#define IOCTL_PMU_IS_EXT_PWR_OVP _IO(IOCTL_PMU_MAGIC, E_IOCTL_PMU_IS_EXT_PWR_OVP)
|
||
|
|
#define IOCTL_PMU_LCD_DIM_CTRL _IOW(IOCTL_PMU_MAGIC, E_IOCTL_PMU_LCD_DIM_CTRL, int)
|
||
|
|
#define IOCTL_PMU_CORE_CTL_HIGH _IO(IOCTL_PMU_MAGIC, E_IOCTL_PMU_CORE_CTL_HIGH)
|
||
|
|
#define IOCTL_PMU_CORE_CTL_LOW _IO(IOCTL_PMU_MAGIC, E_IOCTL_PMU_CORE_CTL_LOW)
|
||
|
|
#define IOCTL_PMU_TSP_USB_PWR_OFF _IO(IOCTL_PMU_MAGIC, E_IOCTL_PMU_TSP_USB_PWR_OFF)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This is a very simple program that runs on device.
|
||
|
|
* It returns error code either 0 when (power/usb) cable
|
||
|
|
* is not connected or >= 1 if connected.
|
||
|
|
*/
|
||
|
|
int main(void)
|
||
|
|
{
|
||
|
|
int state = -1;
|
||
|
|
int dev = open("/dev/r1Pmu", O_RDONLY);
|
||
|
|
state = ioctl(dev, IOCTL_PMU_IS_EXT_PWR);
|
||
|
|
close(dev);
|
||
|
|
return state;
|
||
|
|
}
|