1 /**
2 * collectd - src/apple_sensors.c
3 * Copyright (C) 2006,2007 Florian octo Forster
4 *
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.
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 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
17 *
18 * Authors:
19 * Florian octo Forster <octo at verplant.org>
20 **/
22 #include "collectd.h"
23 #include "common.h"
24 #include "plugin.h"
26 #if HAVE_CTYPE_H
27 # include <ctype.h>
28 #endif
30 #if HAVE_MACH_MACH_TYPES_H
31 # include <mach/mach_types.h>
32 #endif
33 #if HAVE_MACH_MACH_INIT_H
34 # include <mach/mach_init.h>
35 #endif
36 #if HAVE_MACH_MACH_ERROR_H
37 # include <mach/mach_error.h>
38 #endif
39 #if HAVE_MACH_MACH_PORT_H
40 # include <mach/mach_port.h>
41 #endif
42 #if HAVE_COREFOUNDATION_COREFOUNDATION_H
43 # include <CoreFoundation/CoreFoundation.h>
44 #endif
45 #if HAVE_IOKIT_IOKITLIB_H
46 # include <IOKit/IOKitLib.h>
47 #endif
48 #if HAVE_IOKIT_IOTYPES_H
49 # include <IOKit/IOTypes.h>
50 #endif
52 #if HAVE_IOKIT_IOKITLIB_H
53 # define IOKIT_HAVE_READ 1
54 #else
55 # define IOKIT_HAVE_READ 0
56 #endif
58 #if HAVE_IOKIT_IOKITLIB_H
59 static mach_port_t io_master_port = MACH_PORT_NULL;
60 #endif
62 #if IOKIT_HAVE_READ
63 static int as_init (void)
64 {
65 kern_return_t status;
67 if (io_master_port != MACH_PORT_NULL)
68 {
69 mach_port_deallocate (mach_task_self (),
70 io_master_port);
71 io_master_port = MACH_PORT_NULL;
72 }
74 status = IOMasterPort (MACH_PORT_NULL, &io_master_port);
75 if (status != kIOReturnSuccess)
76 {
77 ERROR ("IOMasterPort failed: %s",
78 mach_error_string (status));
79 io_master_port = MACH_PORT_NULL;
80 return (-1);
81 }
83 return (0);
84 }
86 static void as_submit (const char *type, const char *type_instance,
87 double val)
88 {
89 value_t values[1];
90 value_list_t vl = VALUE_LIST_INIT;
92 DEBUG ("type = %s; type_instance = %s; val = %f;",
93 type, type_instance, val);
95 values[0].gauge = val;
97 vl.values = values;
98 vl.values_len = 1;
99 vl.time = time (NULL);
100 strcpy (vl.host, hostname_g);
101 strcpy (vl.plugin, "apple_sensors");
102 strcpy (vl.plugin_instance, "");
103 strcpy (vl.type_instance, type_instance);
105 plugin_dispatch_values (type, &vl);
106 }
108 static int as_read (void)
109 {
110 kern_return_t status;
111 io_iterator_t iterator;
112 io_object_t io_obj;
113 CFMutableDictionaryRef prop_dict;
114 CFTypeRef property;
116 char type[128];
117 char inst[128];
118 int value_int;
119 double value_double;
120 int i;
122 if (!io_master_port || (io_master_port == MACH_PORT_NULL))
123 return (-1);
125 status = IOServiceGetMatchingServices (io_master_port,
126 IOServiceNameMatching("IOHWSensor"),
127 &iterator);
128 if (status != kIOReturnSuccess)
129 {
130 ERROR ("IOServiceGetMatchingServices failed: %s",
131 mach_error_string (status));
132 return (-1);
133 }
135 while ((io_obj = IOIteratorNext (iterator)))
136 {
137 prop_dict = NULL;
138 status = IORegistryEntryCreateCFProperties (io_obj,
139 &prop_dict,
140 kCFAllocatorDefault,
141 kNilOptions);
142 if (status != kIOReturnSuccess)
143 {
144 DEBUG ("IORegistryEntryCreateCFProperties failed: %s",
145 mach_error_string (status));
146 continue;
147 }
149 /* Copy the sensor type. */
150 property = NULL;
151 if (!CFDictionaryGetValueIfPresent (prop_dict,
152 CFSTR ("type"),
153 &property))
154 continue;
155 if (CFGetTypeID (property) != CFStringGetTypeID ())
156 continue;
157 if (!CFStringGetCString (property,
158 type, 128,
159 kCFStringEncodingASCII))
160 continue;
161 type[127] = '\0';
163 /* Copy the sensor location. This will be used as `instance'. */
164 property = NULL;
165 if (!CFDictionaryGetValueIfPresent (prop_dict,
166 CFSTR ("location"),
167 &property))
168 continue;
169 if (CFGetTypeID (property) != CFStringGetTypeID ())
170 continue;
171 if (!CFStringGetCString (property,
172 inst, 128,
173 kCFStringEncodingASCII))
174 continue;
175 inst[127] = '\0';
176 for (i = 0; i < 128; i++)
177 {
178 if (inst[i] == '\0')
179 break;
180 else if (isalnum (inst[i]))
181 inst[i] = (char) tolower (inst[i]);
182 else
183 inst[i] = '_';
184 }
186 /* Get the actual value. Some computation, based on the `type'
187 * is neccessary. */
188 property = NULL;
189 if (!CFDictionaryGetValueIfPresent (prop_dict,
190 CFSTR ("current-value"),
191 &property))
192 continue;
193 if (CFGetTypeID (property) != CFNumberGetTypeID ())
194 continue;
195 if (!CFNumberGetValue (property,
196 kCFNumberIntType,
197 &value_int))
198 continue;
200 /* Found e.g. in the 1.5GHz PowerBooks */
201 if (strcmp (type, "temperature") == 0)
202 {
203 value_double = ((double) value_int) / 65536.0;
204 strcpy (type, "temperature");
205 }
206 else if (strcmp (type, "temp") == 0)
207 {
208 value_double = ((double) value_int) / 10.0;
209 strcpy (type, "temperature");
210 }
211 else if (strcmp (type, "fanspeed") == 0)
212 {
213 value_double = ((double) value_int) / 65536.0;
214 strcpy (type, "fanspeed");
215 }
216 else if (strcmp (type, "voltage") == 0)
217 {
218 /* Leave this to the battery plugin. */
219 continue;
220 }
221 else if (strcmp (type, "adc") == 0)
222 {
223 value_double = ((double) value_int) / 10.0;
224 strcpy (type, "fanspeed");
225 }
226 else
227 {
228 DEBUG ("apple_sensors: Read unknown sensor type: %s",
229 type);
230 value_double = (double) value_int;
231 }
233 as_submit (type, inst, value_double);
235 CFRelease (prop_dict);
236 IOObjectRelease (io_obj);
237 } /* while (iterator) */
239 IOObjectRelease (iterator);
241 return (0);
242 } /* int as_read */
243 #endif /* IOKIT_HAVE_READ */
245 void module_register (void)
246 {
247 #if IOKIT_HAVE_READ
248 plugin_register_init ("apple_sensors", as_init);
249 plugin_register_read ("apple_sensors", as_read);
250 #endif /* IOKIT_HAVE_READ */
251 } /* void module_register */