src/lib/hdd_atasmart.c

   1 /*
   2  * Copyright (C) 2010-2012 jeanfi@gmail.com
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17  * 02110-1301 USA
  18  */
  19 #include <locale.h>
  20 #include <libintl.h>
  21 #define _(str) gettext(str)
  22
  23 #include <stdlib.h>
  24 #include <string.h>
  25
  26 #include <atasmart.h>
  27
  28 #include "pio.h"
  29 #include "hdd.h"
  30 #include "log.h"
  31
  32 static int filter_sd(const char *p)
  33 {
  34         return strlen(p) == 8 && !strncmp(p, "/dev/sd", 7);
  35 }
  36
  37 static struct psensor *
  38 create_sensor(char *id, char *name, SkDisk *disk, int values_max_length)
  39 {
  40         struct psensor *s;
  41         s = psensor_create(id,
  42                            strdup(name),
  43                            SENSOR_TYPE_HDD_TEMP_ATASMART,
  44                            values_max_length);
  45
  46         s->disk = disk;
  47
  48         return s;
  49 }
  50
  51 struct psensor **hdd_psensor_list_add(struct psensor **sensors,
  52                                       int values_max_length)
  53 {
  54         char **paths, **tmp, *id;
  55         SkDisk *disk;
  56         struct psensor *sensor, **tmp_sensors, **result;
  57
  58         log_debug("hdd_psensor_list_add");
  59
  60         paths = dir_list("/dev", filter_sd);
  61
  62         result = sensors;
  63         tmp = paths;
  64         while (*tmp) {
  65                 log_debug("hdd_psensor_list_add open %s", *tmp);
  66
  67                 if (!sk_disk_open(*tmp, &disk)) {
  68                         id = malloc(strlen("hdd at") + strlen(*tmp) + 1);
  69                         strcpy(id, "hdd at");
  70                         strcat(id, *tmp);
  71
  72                         sensor = create_sensor(id,
  73                                                *tmp,
  74                                                disk,
  75                                                values_max_length);
  76
  77                         tmp_sensors = psensor_list_add(result, sensor);
  78
  79                         if (result != sensors)
  80                                 free(result);
  81
  82                         result = tmp_sensors;
  83                 } else {
  84                         log_err("Failed to open %s", *tmp);
  85                 }
  86
  87                 tmp++;
  88         }
  89
  90         paths_free(paths);
  91
  92         return result;
  93 }
  94
  95 void hdd_psensor_list_update(struct psensor **sensors)
  96 {
  97         struct psensor **cur, *s;
  98         uint64_t kelvin;
  99         int ret;
 100         double c;
 101
 102         cur = sensors;
 103         while (*cur) {
 104                 s = *cur;
 105                 if (s->type == SENSOR_TYPE_HDD_TEMP_ATASMART) {
 106                         ret = sk_disk_smart_read_data(s->disk);
 107
 108                         if (!ret) {
 109                                 ret = sk_disk_smart_get_temperature(s->disk,
 110                                                                     &kelvin);
 111
 112                                 if (!ret) {
 113                                         c = (kelvin - 273150) / 1000;
 114                                         psensor_set_current_value(s, c);
 115                                         log_debug("hdd atasmart: %s %.2f",
 116                                                   s->id,
 117                                                   c);
 118                                 }
 119                         }
 120                 }
 121
 122                 cur++;
 123         }
 124 }