2 * collectd - src/owfs.c
3 * Copyright (C) 2008 Florian octo Forster
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; only version 2 of the License is applicable.
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.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 * Florian octo Forster <octo at noris.net>
25 #include "utils_ignorelist.h"
29 #define OW_FAMILY_LENGTH 8
30 #define OW_FAMILY_MAX_FEATURES 2
31 struct ow_family_features_s
33 char family[OW_FAMILY_LENGTH];
36 char filename[DATA_MAX_NAME_LEN];
37 char type[DATA_MAX_NAME_LEN];
38 char type_instance[DATA_MAX_NAME_LEN];
39 } features[OW_FAMILY_MAX_FEATURES];
42 typedef struct ow_family_features_s ow_family_features_t;
44 /* see http://owfs.sourceforge.net/ow_table.html for a list of families */
45 static ow_family_features_t ow_family_features[] =
51 /* filename = */ "temperature",
52 /* type = */ "temperature",
53 /* type_instance = */ ""
56 /* features_num = */ 1
59 static int ow_family_features_num = STATIC_ARRAY_SIZE (ow_family_features);
61 static char *device_g = NULL;
62 static int ow_interval = 0;
64 static const char *config_keys[] =
71 static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
73 static ignorelist_t *sensor_list;
75 static int cow_load_config (const char *key, const char *value)
77 if (sensor_list == NULL)
78 sensor_list = ignorelist_create (1);
80 if (strcasecmp (key, "Sensor") == 0)
82 if (ignorelist_add (sensor_list, value))
84 ERROR ("sensors plugin: "
85 "Cannot add value to ignorelist.");
89 else if (strcasecmp (key, "IgnoreSelected") == 0)
91 ignorelist_set_invert (sensor_list, 1);
92 if ((strcasecmp (value, "True") == 0)
93 || (strcasecmp (value, "Yes") == 0)
94 || (strcasecmp (value, "On") == 0))
95 ignorelist_set_invert (sensor_list, 0);
97 else if (strcasecmp (key, "Device") == 0)
100 temp = strdup (value);
103 ERROR ("onewire plugin: strdup failed.");
109 else if (strcasecmp ("Interval", key) == 0)
116 ERROR ("onewire plugin: Invalid `Interval' setting: %s", value);
126 static int cow_read_values (const char *path, const char *name,
127 const ow_family_features_t *family_info)
130 value_list_t vl = VALUE_LIST_INIT;
134 if (sensor_list != NULL)
136 DEBUG ("onewire plugin: Checking ignorelist for `%s'", name);
137 if (ignorelist_match (sensor_list, name) != 0)
144 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
145 sstrncpy (vl.plugin, "onewire", sizeof (vl.plugin));
146 sstrncpy (vl.plugin_instance, name, sizeof (vl.plugin_instance));
148 for (i = 0; i < family_info->features_num; i++)
157 snprintf (file, sizeof (file), "%s/%s",
158 path, family_info->features[i].filename);
159 file[sizeof (file) - 1] = 0;
163 status = OW_get (file, &buffer, &buffer_size);
166 ERROR ("onewire plugin: OW_get (%s/%s) failed. status = %#x;",
167 path, family_info->features[i].filename, status);
172 values[0].gauge = strtod (buffer, &endptr);
175 ERROR ("onewire plugin: Buffer is not a number: %s", buffer);
180 sstrncpy (vl.type, family_info->features[i].type, sizeof (vl.type));
181 sstrncpy (vl.type_instance, family_info->features[i].type_instance,
182 sizeof (vl.type_instance));
184 plugin_dispatch_values (&vl);
188 } /* for (i = 0; i < features_num; i++) */
190 return ((success > 0) ? 0 : -1);
191 } /* int cow_read_values */
193 /* Forward declaration so the recursion below works */
194 static int cow_read_bus (const char *path);
200 * - DS2409 - MicroLAN Coupler
202 static int cow_read_ds2409 (const char *path)
207 status = ssnprintf (subpath, sizeof (subpath), "%s/main", path);
208 if ((status > 0) && (status < sizeof (subpath)))
209 cow_read_bus (subpath);
211 status = ssnprintf (subpath, sizeof (subpath), "%s/aux", path);
212 if ((status > 0) && (status < sizeof (subpath)))
213 cow_read_bus (subpath);
216 } /* int cow_read_ds2409 */
218 static int cow_read_bus (const char *path)
229 status = OW_get (path, &buffer, &buffer_size);
232 ERROR ("onewire plugin: OW_get (%s) failed. status = %#x;",
236 DEBUG ("onewire plugin: OW_get (%s) returned: %s",
241 while ((buffer_ptr = strtok_r (dummy, ",/", &saveptr)) != NULL)
247 if (strcmp ("/", path) == 0)
248 status = ssnprintf (subpath, sizeof (subpath), "/%s", buffer_ptr);
250 status = ssnprintf (subpath, sizeof (subpath), "%s/%s",
252 if ((status <= 0) || (status >= sizeof (subpath)))
255 for (i = 0; i < ow_family_features_num; i++)
257 if (strncmp (ow_family_features[i].family, buffer_ptr,
258 strlen (ow_family_features[i].family)) != 0)
261 cow_read_values (subpath,
262 buffer_ptr + strlen (ow_family_features[i].family),
263 ow_family_features + i);
266 if (i < ow_family_features_num)
270 if (strncmp ("1F.", buffer_ptr, strlen ("1F.")) == 0)
272 cow_read_ds2409 (subpath);
275 } /* while (strtok_r) */
279 } /* int cow_read_bus */
281 static int cow_read (user_data_t *ud __attribute__((unused)))
283 return (cow_read_bus ("/"));
286 static int cow_shutdown (void)
289 ignorelist_free (sensor_list);
291 } /* int cow_shutdown */
293 static int cow_init (void)
296 struct timespec cb_interval;
298 if (device_g == NULL)
300 ERROR ("onewire plugin: cow_init: No device configured.");
304 status = (int) OW_init (device_g);
307 ERROR ("onewire plugin: OW_init(%s) failed: %i.", device_g, status);
311 memset (&cb_interval, 0, sizeof (cb_interval));
313 cb_interval.tv_sec = (time_t) ow_interval;
315 plugin_register_complex_read ("onewire", cow_read,
316 &cb_interval, /* user data = */ NULL);
317 plugin_register_shutdown ("onewire", cow_shutdown);
322 void module_register (void)
324 plugin_register_init ("onewire", cow_init);
325 plugin_register_config ("onewire", cow_load_config,
326 config_keys, config_keys_num);
329 /* vim: set sw=2 sts=2 ts=8 et fdm=marker cindent : */