/*
* HardInfo - Displays System Information
* Copyright (C) 2003-2006 Leandro A. F. Pereira <leandro@linuxmag.com.br>
*
* 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, version 2.
*
* 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
*/
static gchar *sensors = NULL;
static GHashTable *sensor_labels = NULL;
static GHashTable *sensor_compute = NULL;
static void
read_sensor_labels(gchar *driver)
{
FILE *conf;
gchar buf[256], *line, *p;
gboolean lock = FALSE;
gint i;
sensor_labels = g_hash_table_new_full(g_str_hash, g_str_equal,
g_free, g_free);
sensor_compute = g_hash_table_new(g_str_hash, g_str_equal);
conf = fopen("/etc/sensors.conf", "r");
if (!conf)
return;
while (fgets(buf, 256, conf)) {
line = buf;
remove_linefeed(line);
strend(line, '#');
if (*line == '\0') {
continue;
} else if (lock && strstr(line, "label")) { /* label lines */
gchar **names = g_strsplit(strstr(line, "label") + 5, " ", 0);
gchar *name = NULL, *value = NULL;
for (i = 0; names[i]; i++) {
if (names[i][0] == '\0')
continue;
if (!name) name = g_strdup(names[i]);
else if (!value) value = g_strdup(names[i]);
else value = g_strconcat(value, " ", names[i], NULL);
}
remove_quotes(value);
g_hash_table_insert(sensor_labels, name, value);
g_strfreev(names);
} else if (lock && strstr(line, "ignore")) { /* ignore lines */
p = strstr(line, "ignore") + 6;
if (!strchr(p, ' '))
continue;
while (*p == ' ') p++;
g_hash_table_insert(sensor_labels, g_strdup(p), "ignore");
} else if (lock && strstr(line, "compute")) { /* compute lines */
gchar **formulas = g_strsplit(strstr(line, "compute") + 7, " ", 0);
gchar *name = NULL, *formula = NULL;
for (i = 0; formulas[i]; i++) {
if (formulas[i][0] == '\0')
continue;
if (formulas[i][0] == ',')
break;
if (!name) name = g_strdup(formulas[i]);
else if (!formula) formula = g_strdup(formulas[i]);
else formula = g_strconcat(formula, formulas[i], NULL);
}
g_strfreev(formulas);
g_hash_table_insert(sensor_compute, name, math_string_to_postfix(formula));
} else if (g_str_has_prefix(line, "chip")) { /* chip lines (delimiter) */
if (lock == FALSE) {
gchar **chips = g_strsplit(line, " ", 0);
for (i = 1; chips[i]; i++) {
strend(chips[i], '*');
if (g_str_has_prefix(driver, chips[i] + 1)) {
lock = TRUE;
break;
}
}
g_strfreev(chips);
} else {
break;
}
}
}
fclose(conf);
}
static gchar *
get_sensor_label(gchar *sensor)
{
gchar *ret;
ret = g_hash_table_lookup(sensor_labels, sensor);
if (!ret) ret = g_strdup(sensor);
else ret = g_strdup(ret);
return ret;
}
static float
adjust_sensor(gchar *name, float value)
{
GSList *postfix;
postfix = g_hash_table_lookup(sensor_compute, name);
if (!postfix) return value;
return math_postfix_eval(postfix, value);
}
static void
read_sensors(void)
{
gchar *path_hwmon, *path_sensor, *tmp, *driver, *name, *mon;
int hwmon, count;
if (sensors)
g_free(sensors);
hwmon = 0;
sensors = g_strdup("");
path_hwmon = g_strdup_printf("/sys/class/hwmon/hwmon%d/device/", hwmon);
while (g_file_test(path_hwmon, G_FILE_TEST_EXISTS)) {
tmp = g_strdup_printf("%sdriver", path_hwmon);
driver = g_file_read_link(tmp, NULL);
g_free(tmp);
tmp = g_path_get_basename(driver);
g_free(driver);
driver = tmp;
if (!sensor_labels) {
read_sensor_labels(driver);
}
sensors = g_strdup_printf("%s[Driver Info]\n"
"Name=%s\n", sensors, driver);
sensors = g_strconcat(sensors, "[Cooling Fans]\n", NULL);
for (count = 1; ; count++) {
path_sensor = g_strdup_printf("%sfan%d_input", path_hwmon, count);
if (!g_file_get_contents(path_sensor, &tmp, NULL, NULL)) {
g_free(path_sensor);
break;
}
mon = g_strdup_printf("fan%d", count);
name = get_sensor_label(mon);
if (!g_str_equal(name, "ignore")) {
sensors = g_strdup_printf("%s%s=%.0fRPM\n",
sensors, name,
adjust_sensor(mon, atof(tmp)));
}
g_free(name);
g_free(mon);
g_free(tmp);
g_free(path_sensor);
}
sensors = g_strconcat(sensors, "[Temperatures]\n", NULL);
for (count = 1; ; count++) {
path_sensor = g_strdup_printf("%stemp%d_input", path_hwmon, count);
if (!g_file_get_contents(path_sensor, &tmp, NULL, NULL)) {
g_free(path_sensor);
break;
}
mon = g_strdup_printf("temp%d", count);
name = get_sensor_label(mon);
if (!g_str_equal(name, "ignore")) {
sensors = g_strdup_printf("%s%s=%.2f\302\260C\n",
sensors, name,
adjust_sensor(mon, atof(tmp) / 1000.0));
}
g_free(tmp);
g_free(name);
g_free(path_sensor);
g_free(mon);
}
sensors = g_strconcat(sensors, "[Voltage Values]\n", NULL);
for (count = 0; ; count++) {
path_sensor = g_strdup_printf("%sin%d_input", path_hwmon, count);
if (!g_file_get_contents(path_sensor, &tmp, NULL, NULL)) {
g_free(path_sensor);
break;
}
mon = g_strdup_printf("in%d", count);
name = get_sensor_label(mon);
if (!g_str_equal(name, "ignore")) {
sensors = g_strdup_printf("%s%s=%.3fV\n",
sensors, name,
adjust_sensor(mon, atof(tmp) / 1000.0));
}
g_free(tmp);
g_free(mon);
g_free(name);
g_free(path_sensor);
}
g_free(path_hwmon);
g_free(driver);
path_hwmon = g_strdup_printf("/sys/class/hwmon/hwmon%d/device/", ++hwmon);
}
g_free(path_hwmon);
}