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;
63 static const char *config_keys[] =
70 static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
72 static ignorelist_t *sensor_list;
74 static int cow_load_config (const char *key, const char *value)
76 if (sensor_list == NULL)
77 sensor_list = ignorelist_create (1);
79 if (strcasecmp (key, "Sensor") == 0)
81 if (ignorelist_add (sensor_list, value))
83 ERROR ("sensors plugin: "
84 "Cannot add value to ignorelist.");
88 else if (strcasecmp (key, "IgnoreSelected") == 0)
90 ignorelist_set_invert (sensor_list, 1);
91 if ((strcasecmp (value, "True") == 0)
92 || (strcasecmp (value, "Yes") == 0)
93 || (strcasecmp (value, "On") == 0))
94 ignorelist_set_invert (sensor_list, 0);
96 else if (strcasecmp (key, "Device") == 0)
99 temp = strdup (value);
102 ERROR ("onewire plugin: strdup failed.");
108 else if (strcasecmp (key, "Alias") == 0)
110 /* azogtodo alias-list */
120 static int cow_init (void)
124 if (device_g == NULL)
126 ERROR ("onewire plugin: cow_init: No device configured.");
130 status = (int) OW_init (device_g);
133 ERROR ("onewire plugin: OW_init(%s) failed: %i.", device_g, status);
140 static int cow_read_values (const char *path, const char *name,
141 const ow_family_features_t *family_info)
144 value_list_t vl = VALUE_LIST_INIT;
148 if (sensor_list != NULL)
150 DEBUG ("onewire plugin: Checking ignorelist for `%s'", name);
151 if (ignorelist_match (sensor_list, name) != 0)
157 vl.time = time (NULL);
159 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
160 sstrncpy (vl.plugin, "onewire", sizeof (vl.plugin));
161 sstrncpy (vl.plugin_instance, name, sizeof (vl.plugin_instance));
163 for (i = 0; i < family_info->features_num; i++)
172 snprintf (file, sizeof (file), "%s/%s",
173 path, family_info->features[i].filename);
174 file[sizeof (file) - 1] = 0;
178 status = OW_get (file, &buffer, &buffer_size);
181 ERROR ("onewire plugin: OW_get (%s/%s) failed. status = %#x;",
182 path, family_info->features[i].filename, status);
187 values[0].gauge = strtod (buffer, &endptr);
190 ERROR ("onewire plugin: Buffer is not a number: %s", buffer);
195 sstrncpy (vl.type, family_info->features[i].type, sizeof (vl.type));
196 sstrncpy (vl.type_instance, family_info->features[i].type_instance,
197 sizeof (vl.type_instance));
199 plugin_dispatch_values (&vl);
203 } /* for (i = 0; i < features_num; i++) */
205 return ((success > 0) ? 0 : -1);
206 } /* int cow_read_values */
208 /* Forward declaration so the recursion below works */
209 static int cow_read_bus (const char *path);
215 * - DS2409 - MicroLAN Coupler
217 static int cow_read_ds2409 (const char *path)
222 status = ssnprintf (subpath, sizeof (subpath), "%s/main", path);
223 if ((status > 0) && (status < sizeof (subpath)))
224 cow_read_bus (subpath);
226 status = ssnprintf (subpath, sizeof (subpath), "%s/aux", path);
227 if ((status > 0) && (status < sizeof (subpath)))
228 cow_read_bus (subpath);
231 } /* int cow_read_ds2409 */
233 static int cow_read_bus (const char *path)
244 status = OW_get (path, &buffer, &buffer_size);
247 ERROR ("onewire plugin: OW_get (%s) failed. status = %#x;",
251 DEBUG ("onewire plugin: OW_get (%s) returned: %s",
256 while ((buffer_ptr = strtok_r (dummy, ",/", &saveptr)) != NULL)
262 if (strcmp ("/", path) == 0)
263 status = ssnprintf (subpath, sizeof (subpath), "/%s", buffer_ptr);
265 status = ssnprintf (subpath, sizeof (subpath), "%s/%s",
267 if ((status <= 0) || (status >= sizeof (subpath)))
270 for (i = 0; i < ow_family_features_num; i++)
272 if (strncmp (ow_family_features[i].family, buffer_ptr,
273 strlen (ow_family_features[i].family)) != 0)
276 cow_read_values (subpath,
277 buffer_ptr + strlen (ow_family_features[i].family),
278 ow_family_features + i);
281 if (i < ow_family_features_num)
285 if (strncmp ("1F.", buffer_ptr, strlen ("1F.")) == 0)
287 cow_read_ds2409 (subpath);
290 } /* while (strtok_r) */
294 } /* int cow_read_bus */
296 static int cow_read (void)
298 return (cow_read_bus ("/"));
301 static int cow_shutdown (void)
304 ignorelist_free (sensor_list);
306 } /* int cow_shutdown */
308 void module_register (void)
310 plugin_register_init ("onewire", cow_init);
311 plugin_register_read ("onewire", cow_read);
312 plugin_register_shutdown ("onewire", cow_shutdown);
313 plugin_register_config ("onewire", cow_load_config,
314 config_keys, config_keys_num);
317 /* vim: set sw=2 sts=2 ts=8 et fdm=marker cindent : */