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-rw-r--r--plugins/i8k/i8k-plugin.c161
1 files changed, 161 insertions, 0 deletions
diff --git a/plugins/i8k/i8k-plugin.c b/plugins/i8k/i8k-plugin.c
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+++ b/plugins/i8k/i8k-plugin.c
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+/*
+ * 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 "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;
+
+}
+
+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);
+}