1 files changed, 234 insertions, 0 deletions
diff --git a/plugins/i2c-proc/i2c-proc-plugin.c b/plugins/i2c-proc/i2c-proc-plugin.c
new file mode 100644
index 0000000..217654c
--- /dev/null
+++ b/plugins/i2c-proc/i2c-proc-plugin.c
@@ -0,0 +1,234 @@
+/*
+ * 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 */
+
+#ifdef HAVE_LOCALE_H
+#include <locale.h>
+#endif
+
+#include <glib.h>
+#include <glib/gi18n.h>
+#include "i2c-proc-plugin.h"
+
+const gchar *plugin_name = "i2c-proc";
+
+#define I2C_PROC_BASE_DIR "/proc/sys/dev/sensors"
+
+enum {
+ I2C_PROC_DEVICE_FILE_OPEN_ERROR,
+ I2C_PROC_DEVICE_FILE_READ_ERROR
+};
+
+static void i2c_proc_plugin_add_sensor(GList **sensors, 
+ const gchar *path) {
+ gchar *filename;
+ gchar *label;
+ gboolean enable;
+ SensorType 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") == 0) {
+ sensor_type = TEMP_SENSOR;
+ label = g_strdup(_("CPU"));
+ enable = TRUE;
+ icon_type = CPU_ICON;
+ } else {
+ label = g_strdup(filename);
+ 
+ switch(filename[0]) {
+ case 'c': /* currents are "curr?" */
+ sensor_type = CURRENT_SENSOR;
+ break;
+ case 'f': /* fans are "fan?" */
+ sensor_type = FAN_SENSOR;
+ icon_type = FAN_ICON;
+ break;
+ case 'i': /* voltages are "in?" */
+ sensor_type = VOLTAGE_SENSOR;
+ break;
+ case 't': /* temps are "temp?" */
+ sensor_type = TEMP_SENSOR;
+ break;
+ case 'v': /* vids are just vid */
+ sensor_type = VOLTAGE_SENSOR;
+ break;
+ default:
+ /* SHOULDN'T BE ABLE
+ * TO GET HERE!! */
+ g_debug("error in i2c-proc sensor detection code - unhandled sensor filename %s", filename);
+ g_free(filename);
+ g_free(label);
+ return;
+ }
+ /* disable all other sensors */
+ enable = FALSE;
+ }
+ sensors_applet_plugin_add_sensor(sensors,
+ path,
+ filename,
+ label,
+ sensor_type,
+ enable,
+ icon_type,
+ DEFAULT_GRAPH_COLOR);
+
+
+ g_free(filename);
+ g_free(label);
+} 
+
+static void i2c_proc_plugin_test_sensor(GList **sensors, const gchar *path) {
+ gchar *filename;
+
+ filename = g_path_get_basename(path);
+ /* see if filename starts with any of the sensor
+ prefixes */
+ if (g_str_has_prefix(filename, "curr") || 
+ (g_str_has_prefix(filename, "fan") && 
+ !g_str_has_prefix(filename, "fan_div")) || 
+ g_str_has_prefix(filename, "in") || 
+ g_str_has_prefix(filename, "temp") || 
+ g_str_has_prefix(filename, "vid")) {
+ i2c_proc_plugin_add_sensor(sensors, path);
+ }
+ g_free(filename);
+ 
+}
+
+
+/* to be called to setup for proc sensors */
+static GList *i2c_proc_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_PROC_BASE_DIR, i2c_proc_plugin_test_sensor);
+ return sensors;
+}
+
+static gdouble i2c_proc_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 float1, float2, float3;
+ gint int1, int2;
+
+ gfloat sensor_value = -1.0;
+
+ gchar *old_locale = NULL;
+
+ /* always use C locale */
+ if (NULL == (old_locale = setlocale(LC_NUMERIC, "C"))) {
+ g_warning("Could not change locale to C locale for reading i2c-proc device files.. will try regardless");
+ } 
+
+ if (NULL == (fp = fopen(path, "r"))) {
+ g_set_error(error, SENSORS_APPLET_PLUGIN_ERROR, I2C_PROC_DEVICE_FILE_OPEN_ERROR, "Error opening sensor device file %s", path);
+ 
+ } else {
+
+ switch (type) {
+ case CURRENT_SENSOR:
+ 
+ if (fscanf(fp, "%f %f %f", &float1, &float2, &float3) != 3) {
+ g_set_error(error, SENSORS_APPLET_PLUGIN_ERROR, I2C_PROC_DEVICE_FILE_READ_ERROR, "Error reading from sensor device file %s", path);
+ } else {
+ sensor_value = float3;
+ }
+ break;
+ 
+ case FAN_SENSOR:
+ if (fscanf(fp, "%d %d", &int1, &int2) != 2) {
+ g_set_error(error, SENSORS_APPLET_PLUGIN_ERROR, I2C_PROC_DEVICE_FILE_READ_ERROR, "Error reading from sensor device file %s", path);
+ 
+ } else {
+ sensor_value = (gfloat)int2;
+ }
+ break;
+ 
+ case VOLTAGE_SENSOR:
+ /* is it CPU_VID or IN */
+ switch(id[0]) {
+ case 'i':
+ if (fscanf(fp, "%f %f %f", &float1, &float2, &float3) != 3) {
+ g_set_error(error, SENSORS_APPLET_PLUGIN_ERROR, I2C_PROC_DEVICE_FILE_READ_ERROR, "Error reading from sensor device file %s", path);
+ } else {
+ sensor_value = float3;
+ }
+ break;
+ 
+ case 'v':
+ /* want first value in file as float */
+ if (fscanf(fp, "%f", &float1) != 1) {
+ g_set_error(error, SENSORS_APPLET_PLUGIN_ERROR, I2C_PROC_DEVICE_FILE_READ_ERROR, "Error reading from sensor device file %s", path);
+ } else {
+ sensor_value = float1;
+ }
+ break;
+ default:
+ g_debug("error in i2c-proc sensor read value function code - unhandled sensor id %s", id);
+ g_set_error(error, SENSORS_APPLET_PLUGIN_ERROR, I2C_PROC_DEVICE_FILE_READ_ERROR, "Error reading from sensor device file %s", path);
+ }
+ break;
+
+ case TEMP_SENSOR:
+ if (fscanf(fp, "%f %f %f", &float1, &float2, &float3) != 3) {
+ g_set_error(error, SENSORS_APPLET_PLUGIN_ERROR, I2C_PROC_DEVICE_FILE_READ_ERROR, "Error reading from sensor device file %s", path);
+ } else {
+ sensor_value = float3; 
+ }
+ break;
+ } /* end switch */
+ fclose(fp);
+ }
+ if (NULL != old_locale) {
+ setlocale(LC_NUMERIC, old_locale);
+ }
+ 
+ return (gdouble)sensor_value;
+}
+
+const gchar *sensors_applet_plugin_name(void) 
+{
+ return plugin_name;
+}
+
+GList *sensors_applet_plugin_init(void) 
+{
+ return i2c_proc_plugin_init();
+}
+
+gdouble sensors_applet_plugin_get_sensor_value(const gchar *path, 
+ const gchar *id, 
+ SensorType type,
+ GError **error) {
+ return i2c_proc_plugin_get_sensor_value(path, id, type, error);
+}