diff options
Diffstat (limited to 'plugins/i2c-sys/i2c-sys-plugin.c')
| -rw-r--r-- | plugins/i2c-sys/i2c-sys-plugin.c | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/plugins/i2c-sys/i2c-sys-plugin.c b/plugins/i2c-sys/i2c-sys-plugin.c new file mode 100644 index 0000000..17535aa --- /dev/null +++ b/plugins/i2c-sys/i2c-sys-plugin.c @@ -0,0 +1,191 @@ +/* + * 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 "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); + g_free(id); + g_free(label); + + 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); +} |