diff options
Diffstat (limited to 'plugins/acpi/acpi-plugin.c')
| -rw-r--r-- | plugins/acpi/acpi-plugin.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/plugins/acpi/acpi-plugin.c b/plugins/acpi/acpi-plugin.c new file mode 100644 index 0000000..4c0189f --- /dev/null +++ b/plugins/acpi/acpi-plugin.c @@ -0,0 +1,137 @@ +/* + * Copyright (C) 2005-2009 Alex Murray <[email protected]> + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif /* HAVE_CONFIG_H */ + +#ifdef HAVE_STDIO_H +#include <stdio.h> +#endif /* HAVE_STDIO_H */ + +#include <glib.h> +#include <glib/gi18n.h> +#include "acpi-plugin.h" + +const gchar *plugin_name = "acpi"; + +#define ACPI_THERMAL_ZONE_BASE_DIR "/proc/acpi/thermal_zone" +#define ACPI_THERMAL_BASE_DIR "/proc/acpi/thermal" + +enum { + ACPI_DEVICE_FILE_OPEN_ERROR, + ACPI_DEVICE_FILE_READ_ERROR +}; + +static void acpi_plugin_add_sensor(GList **sensors, const gchar *path) { + gchar *dirname; + gchar *id; + gchar *label; + + + dirname = g_path_get_dirname(path); + id = g_path_get_basename(dirname); + g_free(dirname); + + sensors_applet_plugin_add_sensor(sensors, + path, + id, + _("CPU"), + TEMP_SENSOR, + TRUE, + CPU_ICON, + DEFAULT_GRAPH_COLOR); + g_free(id); +} + +static void acpi_plugin_test_sensor(GList **sensors, + const gchar *path) { + gchar *filename; + + filename = g_path_get_basename(path); + + if (g_ascii_strcasecmp(filename, "temperature") == 0 || + g_ascii_strcasecmp(filename, "status") == 0) { + acpi_plugin_add_sensor(sensors, path); + + } + g_free(filename); + +} + + + +/* to be called to setup for acpi sensors and returns the list of found + * sensors */ +static GList *acpi_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, ACPI_THERMAL_ZONE_BASE_DIR, acpi_plugin_test_sensor); + sensors_applet_plugin_find_sensors(&sensors, ACPI_THERMAL_BASE_DIR, acpi_plugin_test_sensor); + return sensors; +} + + +static gdouble acpi_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 = -1.0f; + gchar units[32]; + + if (NULL == (fp = fopen(path, "r"))) { + g_set_error(error, SENSORS_APPLET_PLUGIN_ERROR, ACPI_DEVICE_FILE_OPEN_ERROR, "Error opening sensor device file %s", path); + return sensor_value; + } + + if (fscanf(fp, "temperature: %f %31s", &sensor_value, units) < 1) { + g_set_error(error, SENSORS_APPLET_PLUGIN_ERROR, ACPI_DEVICE_FILE_READ_ERROR, "Error reading from sensor device file %s", path); + fclose(fp); + return sensor_value; + } + fclose(fp); + + /* need to convert if units are deciKelvin */ + if (g_ascii_strcasecmp(units, "dK") == 0) { + sensor_value = (sensor_value / 10.0) - 273.0; + } + + return (gdouble)sensor_value; +} + +const gchar *sensors_applet_plugin_name(void) +{ + return plugin_name; +} + +GList *sensors_applet_plugin_init(void) +{ + return acpi_plugin_init(); +} + +gdouble sensors_applet_plugin_get_sensor_value(const gchar *path, + const gchar *id, + SensorType type, + GError **error) { + return acpi_plugin_get_sensor_value(path, id, type, error); +} |