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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 "i2c-sys-plugin.h"
const gchar *plugin_name = "i2c-sys";
#define I2C_SYS_BASE_DIR "/sys"
enum {
I2C_SYS_DEVICE_FILE_OPEN_ERROR,
I2C_SYS_DEVICE_FILE_READ_ERROR
};
static void i2c_sys_plugin_add_sensor(GList **sensors, const gchar *path) {
gchar *filename;
gchar *id;
gchar *label;
gboolean enable;
guint sensor_type;
IconType icon_type = GENERIC_ICON;
filename = g_path_get_basename(path);
/* setup temp2 as CPU sensor and enable it */
if (g_ascii_strcasecmp(filename, "temp2_input") == 0) {
id = g_strndup(filename, 5);
label = g_strdup(_("CPU"));
sensor_type = TEMP_SENSOR;
enable = TRUE;
icon_type = CPU_ICON;
} else {
switch(filename[0]) {
case 'c': /* either current or cpu?_vid sensor */
if (filename[1] == 'u') { /* currents are curr?_input */
id = g_strndup(filename, 5);
label = g_strndup(filename, 5);
sensor_type = CURRENT_SENSOR;
} else { /* cpu_vid is cpu?_vid */
id = g_strdup(filename);
label = g_strdup(filename);
sensor_type = VOLTAGE_SENSOR;
}
break;
case 'f': /* fans are "fan?_input" */
id = g_strndup(filename, 4);
label = g_strndup(filename, 4);
sensor_type = FAN_SENSOR;
icon_type = FAN_ICON;
break;
case 't': /* temps are "temp?_input" */
id = g_strndup(filename, 5);
label = g_strndup(filename, 5);
sensor_type = TEMP_SENSOR;
break;
case 'i': /* voltages are "in?_input" */
id = g_strndup(filename, 3);
label = g_strndup(filename, 3);
sensor_type = VOLTAGE_SENSOR;
break;
default:
/* SHOULDN'T BE ABLE * TO GET HERE!! */
g_warning("filename:\"%s\" begins with a charater that is not covered by this switch statement... not adding sensor", filename);
g_free(filename);
return;
}
/* disable all other sensors */
enable = FALSE;
}
sensors_applet_plugin_add_sensor(sensors,
path,
id,
label,
sensor_type,
enable,
icon_type,
DEFAULT_GRAPH_COLOR);
g_free(filename);
g_free(id);
g_free(label);
}
static void i2c_sys_plugin_test_sensor(GList **sensors, const gchar *path) {
gchar *filename;
filename = g_path_get_basename(path);
if ((g_str_has_suffix(filename, "_input") &&
(g_str_has_prefix(filename, "temp") ||
g_str_has_prefix(filename, "fan") ||
g_str_has_prefix(filename, "curr") ||
g_str_has_prefix(filename, "in"))) ||
(g_str_has_prefix(filename, "cpu") &&
(g_str_has_suffix(filename, "_vid")))) {
i2c_sys_plugin_add_sensor(sensors, path);
}
g_free(filename);
}
/* to be called to setup for sys sensors */
static GList *i2c_sys_plugin_init(void) {
GList *sensors = NULL;
/* call function to recursively look for sensors
starting at the defined base directory */
sensors_applet_plugin_find_sensors(&sensors,
I2C_SYS_BASE_DIR,
i2c_sys_plugin_test_sensor);
return sensors;
}
static gdouble i2c_sys_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;
gfloat sensor_value;
if (NULL == (fp = fopen(path, "r"))) {
g_set_error(error, SENSORS_APPLET_PLUGIN_ERROR, I2C_SYS_DEVICE_FILE_OPEN_ERROR, "Error opening sensor device file %s", path);
return -1.0;
}
if (fscanf(fp, "%f", &sensor_value) != 1) {
g_set_error(error, SENSORS_APPLET_PLUGIN_ERROR, I2C_SYS_DEVICE_FILE_READ_ERROR, "Error reading from sensor device file %s", path);
fclose(fp);
return -1.0;
}
fclose(fp);
if (type != FAN_SENSOR) {
sensor_value /= 1000.0;
}
return (gdouble)sensor_value;
}
const gchar *sensors_applet_plugin_name(void)
{
return plugin_name;
}
GList *sensors_applet_plugin_init(void)
{
return i2c_sys_plugin_init();
}
gdouble sensors_applet_plugin_get_sensor_value(const gchar *path,
const gchar *id,
SensorType type,
GError **error) {
return i2c_sys_plugin_get_sensor_value(path, id, type, error);
}
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