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/************************************************************************
* This file is part of trayfreq. *
* *
* trayfreq 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 3 of the License, or *
* (at your option) any later version. *
* *
* trayfreq is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with trayfreq. If not, see <http://www.gnu.org/licenses/>. *
************************************************************************/
#include "getbat.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <glib.h>
gint BAT_NUM;
gint MAX_CAPACITY;
gint WARN_CAPACITY;
gint LOW_CAPACITY;
gchar INFO_PATH[30];
gchar STATE_PATH[30];
static gint get_bat_num()
{
FILE* fd;
gchar file[30];
gint i;
for(i = 0; i < 3; ++i)
{
memset(file, '\0', 30);
sprintf(file, "/proc/acpi/battery/BAT%i/info", i);
if((fd = fopen(file, "r")) != NULL)
return i;
}
return -1;
}
static gint get_int(char* line)
{
char numbers[] = "1234567890";
char* first_num;
first_num = strpbrk (line, numbers);
if(first_num)
return atoi(first_num);
return 1;
}
static gint get_int_value_from_file(const gchar* path, const gchar* label, int label_size)
{
FILE* fd;
gchar buff[100];
gint value;
if(!(fd = fopen(path, "r")))
return -1;
while(fgets(buff, 100, fd)!= NULL)
{
if(strncmp(label, buff, label_size) == 0)
{
value = get_int(buff);
break;
}
}
fclose(fd);
return value;
}
static gboolean file_has_line(const gchar* path, const gchar* line)
{
FILE* fd;
gchar buff[100];
if(!(fd = fopen(path, "r")))
return FALSE;
while(fgets(buff, 100, fd) != NULL)
{
if(strstr(buff, line) != NULL)
{
fclose(fd);
return TRUE;
}
}
fclose(fd);
return FALSE;
}
gboolean gb_init()
{
BAT_NUM = get_bat_num();
sprintf(INFO_PATH, "/proc/acpi/battery/BAT%i/info", gb_number());
sprintf(STATE_PATH, "/proc/acpi/battery/BAT%i/state", gb_number());
FILE* fd;
gchar buff[100];
if(!(fd = fopen(INFO_PATH, "r")))
return FALSE;
while(fgets(buff, 100, fd)!= NULL)
{
if(strncmp("last full capacity:", buff, 19) == 0)
MAX_CAPACITY = get_int(buff);
else if(strncmp("design capacity warning:", buff, 24) == 0)
WARN_CAPACITY = get_int(buff);
else if(strncmp("design capacity low:", buff, 20) == 0)
LOW_CAPACITY = get_int(buff);
else if(strncmp("present: no",buff, 27) == 0)
return FALSE;
}
fclose(fd);
return TRUE;
}
gint gb_current_capacity()
{
return get_int_value_from_file(STATE_PATH, "remaining capacity:", 19);
}
gint gb_current_rate()
{
return get_int_value_from_file(STATE_PATH, "present rate:", 13);
}
gboolean gb_discharging()
{
return file_has_line(STATE_PATH, "discharging");
}
gboolean gb_charged()
{
return file_has_line(STATE_PATH, "charged");
}
gboolean gb_charging()
{
if(!file_has_line(STATE_PATH, "discharging") && !file_has_line(STATE_PATH, "charged"))
return TRUE;
return FALSE;
}
gint gb_number()
{
return BAT_NUM;
}
gint gb_max_capacity()
{
return MAX_CAPACITY;
}
gint gb_warn_capacity()
{
return WARN_CAPACITY;
}
gint gb_low_capacity()
{
return LOW_CAPACITY;
}
gint gb_percent()
{
int percent, max_capacity;
if ( (max_capacity = gb_max_capacity()) == 0 )
return 0;
percent = (gb_current_capacity() * 100) / max_capacity;
if (percent > 100)
percent = 100;
return percent;
}
void gb_discharge_time(gchar* time)
{
float ftime = (float)gb_current_capacity() / (float)gb_current_rate();
float minutes = ((float)ftime - (int)ftime) * (float)60;
if(minutes < 10)
sprintf(time, "%i:0%i", (int)ftime, (int)minutes);
else
sprintf(time, "%i:%i", (int)ftime, (int)minutes);
}
void gb_charge_time(gchar* time)
{
float ftime = ((float)gb_max_capacity() - (float)gb_current_capacity()) / (float)gb_current_rate();
float minutes = ((float)ftime - (int)ftime) * (float)60;
if(minutes < 10)
sprintf(time, "%i:0%i", (int)ftime, (int)minutes);
else
sprintf(time, "%i:%i", (int)ftime, (int)minutes);
}
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