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-rw-r--r--modules/devices/sensors.c444
1 files changed, 444 insertions, 0 deletions
diff --git a/modules/devices/sensors.c b/modules/devices/sensors.c
new file mode 100644
index 00000000..84e89361
--- /dev/null
+++ b/modules/devices/sensors.c
@@ -0,0 +1,444 @@
+/*
+ * HardInfo - Displays System Information
+ * Copyright (C) 2003-2006 Leandro A. F. Pereira <leandro@hardinfo.org>
+ *
+ * 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
+ */
+
+#include <string.h>
+
+#include "devices.h"
+#include "expr.h"
+#include "hardinfo.h"
+#include "socket.h"
+
+gchar *sensors = NULL;
+GHashTable *sensor_compute = NULL;
+GHashTable *sensor_labels = NULL;
+
+static void read_sensor_labels(gchar * driver)
+{
+ FILE *conf;
+ gchar buf[256], *line, *p;
+ gboolean lock = FALSE;
+ gint i;
+
+ /* Try to open lm-sensors config file sensors3.conf */
+ conf = fopen("/etc/sensors3.conf", "r");
+
+ /* If it fails, try to open sensors.conf */
+ if (!conf) conf = fopen("/etc/sensors.conf", "r");
+
+ if (!conf) {
+ /* Cannot open config file. */
+ 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(chips[i] + 1, driver)) {
+ 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 char *get_sensor_path(int number, const char *prefix)
+{
+ return g_strdup_printf("/sys/class/hwmon/hwmon%d/%s", number, prefix);
+}
+
+static char *determine_driver_for_hwmon_path(char *path)
+{
+ char *tmp, *driver;
+
+ tmp = g_strdup_printf("%s/device/driver", path);
+ driver = g_file_read_link(tmp, NULL);
+ g_free(tmp);
+
+ if (driver) {
+ tmp = g_path_get_basename(driver);
+ g_free(driver);
+ driver = tmp;
+ } else {
+ tmp = g_strdup_printf("%s/device", path);
+ driver = g_file_read_link(tmp, NULL);
+ g_free(tmp);
+ }
+
+ if (!driver) {
+ tmp = g_strdup_printf("%s/name", path);
+ if (!g_file_get_contents(tmp, &driver, NULL, NULL)) {
+ driver = g_strdup("unknown");
+ } else {
+ driver = g_strstrip(driver);
+ }
+ g_free(tmp);
+ }
+
+ return driver;
+}
+
+struct HwmonSensor {
+ const char *friendly_name;
+ const char *path_format;
+ const char *key_format;
+ const char *value_format;
+ const float adjust_ratio;
+ const int begin_at;
+};
+
+static const struct HwmonSensor hwmon_sensors[] = {
+ { "Cooling Fans", "%s/fan%d_input", "fan%d", "%s (%s)=%.0fRPM\n", 1.0, 1 },
+ { "Temperature", "%s/temp%d_input", "temp%d", "%s (%s)=%.2f\302\260C\n", 1000.0, 1 },
+ { "Voltage Values", "%s/in%d_input", "in%d", "%s (%s)=%.3fV\n", 1000.0, 0 },
+ { NULL, NULL, NULL, NULL, 0.0, 0 },
+};
+
+static const char *hwmon_prefix[] = { "device", "", NULL };
+
+static void read_sensors_hwmon(void)
+{
+ int hwmon, count;
+ gchar *path_hwmon, *path_sensor, *tmp, *driver, *name, *mon;
+ const char **prefix;
+
+ for (prefix = hwmon_prefix; *prefix; prefix++) {
+ hwmon = 0;
+ path_hwmon = get_sensor_path(hwmon, *prefix);
+ while (path_hwmon && g_file_test(path_hwmon, G_FILE_TEST_EXISTS)) {
+ const struct HwmonSensor *sensor;
+
+ driver = determine_driver_for_hwmon_path(path_hwmon);
+ DEBUG("hwmon%d has driver=%s", hwmon, driver);
+
+ if (!sensor_labels) {
+ read_sensor_labels(driver);
+ }
+
+ for (sensor = hwmon_sensors; sensor->friendly_name; sensor++) {
+ char *output = NULL;
+ DEBUG("current sensor type=%s", sensor->friendly_name);
+
+ for (count = sensor->begin_at;; count++) {
+ path_sensor = g_strdup_printf(sensor->path_format, path_hwmon, count);
+ DEBUG("should be reading from %s", path_sensor);
+ if (!g_file_get_contents(path_sensor, &tmp, NULL, NULL)) {
+ g_free(path_sensor);
+ if (count<256)
+ continue; // brute-force find all
+ else
+ break;
+ }
+
+ mon = g_strdup_printf(sensor->key_format, count);
+ name = get_sensor_label(mon);
+ if (!g_str_equal(name, "ignore")) {
+ output = h_strdup_cprintf(sensor->value_format,
+ output, name, driver,
+ adjust_sensor(mon,
+ atof(tmp) / sensor->adjust_ratio));
+ }
+
+ g_free(tmp);
+ g_free(mon);
+ g_free(name);
+ g_free(path_sensor);
+ }
+
+ if (output) {
+ sensors = g_strconcat(sensors, "[", sensor->friendly_name, "]\n", output, "\n", NULL);
+ g_free(output);
+ }
+ }
+
+ g_free(path_hwmon);
+ g_free(driver);
+
+ path_hwmon = get_sensor_path(++hwmon, *prefix);
+ }
+
+ g_free(path_hwmon);
+ }
+}
+
+static void read_sensors_acpi(void)
+{
+ const gchar *path_tz = "/proc/acpi/thermal_zone";
+
+ if (g_file_test(path_tz, G_FILE_TEST_EXISTS)) {
+ GDir *tz;
+
+ if ((tz = g_dir_open(path_tz, 0, NULL))) {
+ const gchar *entry;
+ gchar *temp = g_strdup("");
+
+ while ((entry = g_dir_read_name(tz))) {
+ gchar *path =
+ g_strdup_printf("%s/%s/temperature", path_tz, entry);
+ gchar *contents;
+
+ if (g_file_get_contents(path, &contents, NULL, NULL)) {
+ int temperature;
+
+ sscanf(contents, "temperature: %d C", &temperature);
+
+ temp = h_strdup_cprintf("\n%s=%d\302\260C\n",
+ temp, entry, temperature);
+
+ g_free(contents);
+ }
+ }
+
+ if (*temp != '\0')
+ sensors =
+ h_strdup_cprintf("\n[ACPI Thermal Zone]\n%s",
+ sensors, temp);
+
+ g_dir_close(tz);
+ }
+ }
+
+}
+
+static void read_sensors_sys_thermal(void)
+{
+ const gchar *path_tz = "/sys/class/thermal";
+
+ if (g_file_test(path_tz, G_FILE_TEST_EXISTS)) {
+ GDir *tz;
+
+ if ((tz = g_dir_open(path_tz, 0, NULL))) {
+ const gchar *entry;
+ gchar *temp = g_strdup("");
+
+ while ((entry = g_dir_read_name(tz))) {
+ gchar *path =
+ g_strdup_printf("%s/%s/temp", path_tz, entry);
+ gchar *contents;
+
+ if (g_file_get_contents(path, &contents, NULL, NULL)) {
+ int temperature;
+
+ sscanf(contents, "%d", &temperature);
+
+ temp = h_strdup_cprintf("\n%s=%.2f\302\260C\n",
+ temp, entry, (1.0*temperature/1000));
+
+ g_free(contents);
+ }
+ }
+
+ if (*temp != '\0')
+ sensors =
+ h_strdup_cprintf("\n[ACPI Thermal Zone (sysfs)]\n%s",
+ sensors, temp);
+
+ g_dir_close(tz);
+ }
+ }
+
+}
+
+static void read_sensors_omnibook(void)
+{
+ const gchar *path_ob = "/proc/omnibook/temperature";
+ gchar *contents;
+
+ if (g_file_get_contents(path_ob, &contents, NULL, NULL)) {
+ int temperature;
+
+ sscanf(contents, "CPU temperature: %d C", &temperature);
+
+ sensors = h_strdup_cprintf("\n[Omnibook]\n"
+ "CPU temperature=%d\302\260C\n",
+ sensors, temperature);
+
+ g_free(contents);
+ }
+}
+
+static void read_sensors_hddtemp(void)
+{
+ Socket *s;
+ static gchar *old = NULL;
+ gchar buffer[1024];
+ gint len = 0;
+
+ if ((s = sock_connect("127.0.0.1", 7634))) {
+ while (!len)
+ len = sock_read(s, buffer, sizeof(buffer));
+ sock_close(s);
+
+ if (len > 2 && buffer[0] == '|' && buffer[1] == '/') {
+ gchar **disks;
+ int i;
+
+ g_free(old);
+
+ old = g_strdup("[Hard Disk Temperature]\n");
+
+ disks = g_strsplit(buffer, "\n", 0);
+ for (i = 0; disks[i]; i++) {
+ gchar **fields = g_strsplit(disks[i] + 1, "|", 5);
+
+ /*
+ * 0 -> /dev/hda
+ * 1 -> FUJITSU MHV2080AH
+ * 2 -> 41
+ * 3 -> C
+ */
+ old = h_strdup_cprintf("\n%s (%s)=%s\302\260%s\n",
+ old,
+ fields[1], fields[0],
+ fields[2], fields[3]);
+
+ g_strfreev(fields);
+ }
+
+ g_strfreev(disks);
+ }
+ } else {
+ g_free(old);
+ old = NULL;
+ }
+
+ if (old) {
+ sensors = g_strconcat(sensors, "\n", old, NULL);
+ }
+}
+
+void scan_sensors_do(void)
+{
+ g_free(sensors);
+
+ sensors = g_strdup("");
+
+ read_sensors_hwmon();
+ read_sensors_acpi();
+ read_sensors_sys_thermal();
+ read_sensors_omnibook();
+ read_sensors_hddtemp();
+
+ /* FIXME: Add support for ibm acpi and more sensors */
+}
+
+void sensors_init(void)
+{
+ 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);
+}
+
+void sensors_shutdown(void)
+{
+ g_hash_table_destroy(sensor_labels);
+ g_hash_table_destroy(sensor_compute);
+}
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