1 /**
2 * collectd - src/apple_sensors.c
3 * Copyright (C) 2006,2007 Florian octo Forster
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * Florian octo Forster <octo at collectd.org>
25 **/
27 #include "collectd.h"
29 #include "common.h"
30 #include "plugin.h"
32 #if HAVE_CTYPE_H
33 #include <ctype.h>
34 #endif
36 #if HAVE_MACH_MACH_TYPES_H
37 #include <mach/mach_types.h>
38 #endif
39 #if HAVE_MACH_MACH_INIT_H
40 #include <mach/mach_init.h>
41 #endif
42 #if HAVE_MACH_MACH_ERROR_H
43 #include <mach/mach_error.h>
44 #endif
45 #if HAVE_MACH_MACH_PORT_H
46 #include <mach/mach_port.h>
47 #endif
48 #if HAVE_COREFOUNDATION_COREFOUNDATION_H
49 #include <CoreFoundation/CoreFoundation.h>
50 #endif
51 #if HAVE_IOKIT_IOKITLIB_H
52 #include <IOKit/IOKitLib.h>
53 #endif
54 #if HAVE_IOKIT_IOTYPES_H
55 #include <IOKit/IOTypes.h>
56 #endif
58 static mach_port_t io_master_port = MACH_PORT_NULL;
60 static int as_init(void) {
61 kern_return_t status;
63 if (io_master_port != MACH_PORT_NULL) {
64 mach_port_deallocate(mach_task_self(), io_master_port);
65 io_master_port = MACH_PORT_NULL;
66 }
68 status = IOMasterPort(MACH_PORT_NULL, &io_master_port);
69 if (status != kIOReturnSuccess) {
70 ERROR("IOMasterPort failed: %s", mach_error_string(status));
71 io_master_port = MACH_PORT_NULL;
72 return (-1);
73 }
75 return (0);
76 }
78 static void as_submit(const char *type, const char *type_instance, double val) {
79 value_list_t vl = VALUE_LIST_INIT;
81 vl.values = &(value_t){.gauge = val};
82 vl.values_len = 1;
83 sstrncpy(vl.plugin, "apple_sensors", sizeof(vl.plugin));
84 sstrncpy(vl.type, type, sizeof(vl.type));
85 sstrncpy(vl.type_instance, type_instance, sizeof(vl.type_instance));
87 plugin_dispatch_values(&vl);
88 }
90 static int as_read(void) {
91 kern_return_t status;
92 io_iterator_t iterator;
93 io_object_t io_obj;
94 CFMutableDictionaryRef prop_dict;
95 CFTypeRef property;
97 char type[128];
98 char inst[128];
99 int value_int;
100 double value_double;
101 if (!io_master_port || (io_master_port == MACH_PORT_NULL))
102 return (-1);
104 status = IOServiceGetMatchingServices(
105 io_master_port, IOServiceNameMatching("IOHWSensor"), &iterator);
106 if (status != kIOReturnSuccess) {
107 ERROR("IOServiceGetMatchingServices failed: %s", mach_error_string(status));
108 return (-1);
109 }
111 while ((io_obj = IOIteratorNext(iterator))) {
112 prop_dict = NULL;
113 status = IORegistryEntryCreateCFProperties(
114 io_obj, &prop_dict, kCFAllocatorDefault, kNilOptions);
115 if (status != kIOReturnSuccess) {
116 DEBUG("IORegistryEntryCreateCFProperties failed: %s",
117 mach_error_string(status));
118 continue;
119 }
121 /* Copy the sensor type. */
122 property = NULL;
123 if (!CFDictionaryGetValueIfPresent(prop_dict, CFSTR("type"), &property))
124 continue;
125 if (CFGetTypeID(property) != CFStringGetTypeID())
126 continue;
127 if (!CFStringGetCString(property, type, sizeof(type),
128 kCFStringEncodingASCII))
129 continue;
130 type[sizeof(type) - 1] = '\0';
132 /* Copy the sensor location. This will be used as `instance'. */
133 property = NULL;
134 if (!CFDictionaryGetValueIfPresent(prop_dict, CFSTR("location"), &property))
135 continue;
136 if (CFGetTypeID(property) != CFStringGetTypeID())
137 continue;
138 if (!CFStringGetCString(property, inst, sizeof(inst),
139 kCFStringEncodingASCII))
140 continue;
141 inst[sizeof(inst) - 1] = '\0';
142 for (int i = 0; i < 128; i++) {
143 if (inst[i] == '\0')
144 break;
145 else if (isalnum(inst[i]))
146 inst[i] = (char)tolower(inst[i]);
147 else
148 inst[i] = '_';
149 }
151 /* Get the actual value. Some computation, based on the `type'
152 * is neccessary. */
153 property = NULL;
154 if (!CFDictionaryGetValueIfPresent(prop_dict, CFSTR("current-value"),
155 &property))
156 continue;
157 if (CFGetTypeID(property) != CFNumberGetTypeID())
158 continue;
159 if (!CFNumberGetValue(property, kCFNumberIntType, &value_int))
160 continue;
162 /* Found e.g. in the 1.5GHz PowerBooks */
163 if (strcmp(type, "temperature") == 0) {
164 value_double = ((double)value_int) / 65536.0;
165 sstrncpy(type, "temperature", sizeof(type));
166 } else if (strcmp(type, "temp") == 0) {
167 value_double = ((double)value_int) / 10.0;
168 sstrncpy(type, "temperature", sizeof(type));
169 } else if (strcmp(type, "fanspeed") == 0) {
170 value_double = ((double)value_int) / 65536.0;
171 sstrncpy(type, "fanspeed", sizeof(type));
172 } else if (strcmp(type, "voltage") == 0) {
173 /* Leave this to the battery plugin. */
174 continue;
175 } else if (strcmp(type, "adc") == 0) {
176 value_double = ((double)value_int) / 10.0;
177 sstrncpy(type, "fanspeed", sizeof(type));
178 } else {
179 DEBUG("apple_sensors: Read unknown sensor type: %s", type);
180 value_double = (double)value_int;
181 }
183 as_submit(type, inst, value_double);
185 CFRelease(prop_dict);
186 IOObjectRelease(io_obj);
187 } /* while (iterator) */
189 IOObjectRelease(iterator);
191 return (0);
192 } /* int as_read */
194 void module_register(void) {
195 plugin_register_init("apple_sensors", as_init);
196 plugin_register_read("apple_sensors", as_read);
197 } /* void module_register */