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/*
* Copyright (C) 2005-2009 Alex Murray <murray.alex@gmail.com>
* Copyright (C) 2012-2021 MATE Developers
*
* 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 program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /* HAVE_CONFIG_H */
#include <stdio.h>
#include <glib.h>
#include <glib/gi18n.h>
#include "i8k-plugin.h"
const gchar *plugin_name = "i8k";
#define I8K_DEVICE_PATH "/proc/i8k"
#define I8K_DEVICE_FILE "i8k"
enum {
I8K_DEVICE_FILE_OPEN_ERROR,
I8K_DEVICE_FILE_READ_ERROR
};
static void i8k_plugin_setup_manually(GList **sensors) {
if (g_file_test(I8K_DEVICE_PATH, G_FILE_TEST_EXISTS)) {
/* with i8k have only 3 fixed sensors, all accessed
from the I8K_DEVICE_PATH */
sensors_applet_plugin_add_sensor(sensors,
I8K_DEVICE_PATH,
"temp1",
_("CPU"),
TEMP_SENSOR,
TRUE,
CPU_ICON,
DEFAULT_GRAPH_COLOR);
sensors_applet_plugin_add_sensor(sensors,
I8K_DEVICE_PATH,
"fan1",
_("FAN1"),
FAN_SENSOR,
FALSE,
FAN_ICON,
DEFAULT_GRAPH_COLOR);
sensors_applet_plugin_add_sensor(sensors,
I8K_DEVICE_PATH,
"fan2",
_("FAN2"),
FAN_SENSOR,
FALSE,
FAN_ICON,
DEFAULT_GRAPH_COLOR);
}
}
/* to be called externally to setup for i8k sensors */
static GList *i8k_plugin_init(void) {
GList *sensors = NULL;
i8k_plugin_setup_manually(&sensors);
return sensors;
}
static
gdouble i8k_plugin_get_sensor_value(const gchar *path,
const gchar *id,
SensorType type,
GError **error) {
/* to open and access the value of each sensor */
FILE *fp;
gint cpu_temp, fan1_status, fan2_status, fan1_rpm, fan2_rpm;
gint sensor_value;
gint space_count, file_length;
if (NULL == (fp = fopen(path, "r"))) {
g_set_error(error, SENSORS_APPLET_PLUGIN_ERROR, I8K_DEVICE_FILE_OPEN_ERROR, "Error opening sensor device file %s", path);
return -1.0;
}
space_count = 0;
file_length = 0;
/* count spaces but stop if have counted 100 characters and
still not found a space (to avoid infinite loop if file
format error) */
while (file_length < 100 && space_count < 3) {
if (fgetc(fp) == ' ') {
space_count++;
}
file_length++;
}
if (fscanf(fp, "%d %d %d %d %d", &cpu_temp, &fan1_status, &fan2_status, &fan1_rpm, &fan2_rpm) != 5) {
g_set_error(error, SENSORS_APPLET_PLUGIN_ERROR, I8K_DEVICE_FILE_READ_ERROR, "Error reading from sensor device file %s", path);
fclose(fp);
return -1.0;
}
fclose(fp);
switch (type) {
case TEMP_SENSOR:
sensor_value = cpu_temp;
break;
case FAN_SENSOR:
switch (id[3]) {
case '1':
sensor_value = fan1_rpm;
break;
case '2':
sensor_value = fan2_rpm;
break;
default:
g_error("Error in i8k sensor get value function code for id %s", id);
g_set_error(error, SENSORS_APPLET_PLUGIN_ERROR, I8K_DEVICE_FILE_READ_ERROR, "Error reading from sensor device file %s", path);
return -1.0;
}
break;
default:
g_error("Unknown sensor type passed as parameter to i8k sensor interface, cannot get value for this sensor");
g_set_error(error, SENSORS_APPLET_PLUGIN_ERROR, I8K_DEVICE_FILE_READ_ERROR, "Error reading from sensor device file %s", path);
return -1.0;
} // end switch (sensor_type)
return (gdouble)sensor_value;
}
const gchar *sensors_applet_plugin_name(void)
{
return plugin_name;
}
GList *sensors_applet_plugin_init(void)
{
return i8k_plugin_init();
}
gdouble sensors_applet_plugin_get_sensor_value(const gchar *path,
const gchar *id,
SensorType type,
GError **error) {
return i8k_plugin_get_sensor_value(path, id, type, error);
}
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