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Patrick Venture5e929092018-06-08 10:55:23 -07001/**
2 * Copyright 2017 Google Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <iostream>
Patrick Venturefe75b192018-06-08 11:19:43 -070018#include <map>
19#include <string>
Patrick Venture5e929092018-06-08 10:55:23 -070020
21/* Configuration. */
22#include "conf.hpp"
23
24#include "dbus/dbuspassive.hpp"
25#include "interfaces.hpp"
26#include "notimpl/readonly.hpp"
27#include "notimpl/writeonly.hpp"
28#include "sensors/builder.hpp"
29#include "sensors/manager.hpp"
30#include "sensors/host.hpp"
31#include "sensors/pluggable.hpp"
32#include "sysfs/sysfsread.hpp"
33#include "sysfs/sysfswrite.hpp"
34#include "util.hpp"
35
36static constexpr bool deferSignals = true;
Patrick Venture0df7c0f2018-06-13 09:02:13 -070037static DbusHelper helper;
Patrick Venture5e929092018-06-08 10:55:23 -070038
Patrick Venturefe75b192018-06-08 11:19:43 -070039SensorManager BuildSensors(
Patrick Venture5e929092018-06-08 10:55:23 -070040 const std::map<std::string, struct sensor>& config)
41{
Patrick Venturefe75b192018-06-08 11:19:43 -070042 SensorManager mgmr;
43 auto& HostSensorBus = mgmr.getHostBus();
44 auto& PassiveListeningBus = mgmr.getPassiveBus();
Patrick Venture5e929092018-06-08 10:55:23 -070045
46 for (auto& it : config)
47 {
48 std::unique_ptr<ReadInterface> ri;
49 std::unique_ptr<WriteInterface> wi;
50
51 std::string name = it.first;
52 const struct sensor* info = &it.second;
53
54 std::cerr << "Sensor: " << name << " " << info->type << " ";
55 std::cerr << info->readpath << " " << info->writepath << "\n";
56
57 IOInterfaceType rtype = GetReadInterfaceType(info->readpath);
58 IOInterfaceType wtype = GetWriteInterfaceType(info->writepath);
59
60 // fan sensors can be ready any way and written others.
61 // fan sensors are the only sensors this is designed to write.
62 // Nothing here should be write-only, although, in theory a fan could be.
63 // I'm just not sure how that would fit together.
64 // TODO(venture): It should check with the ObjectMapper to check if
65 // that sensor exists on the Dbus.
66 switch (rtype)
67 {
68 case IOInterfaceType::DBUSPASSIVE:
69 ri = std::make_unique<DbusPassive>(
70 PassiveListeningBus,
71 info->type,
Patrick Venture0df7c0f2018-06-13 09:02:13 -070072 name,
73 &helper);
Patrick Venture5e929092018-06-08 10:55:23 -070074 break;
75 case IOInterfaceType::EXTERNAL:
76 // These are a special case for read-only.
77 break;
78 case IOInterfaceType::SYSFS:
79 ri = std::make_unique<SysFsRead>(info->readpath);
80 break;
81 default:
82 ri = std::make_unique<WriteOnly>();
83 break;
84 }
85
86 if (info->type == "fan")
87 {
88 switch (wtype)
89 {
90 case IOInterfaceType::SYSFS:
91 if (info->max > 0)
92 {
93 wi = std::make_unique<SysFsWritePercent>(
94 info->writepath,
95 info->min,
96 info->max);
97 }
98 else
99 {
100 wi = std::make_unique<SysFsWrite>(
101 info->writepath,
102 info->min,
103 info->max);
104 }
105
106 break;
107 default:
108 wi = std::make_unique<ReadOnlyNoExcept>();
109 break;
110 }
111
112 auto sensor = std::make_unique<PluggableSensor>(
113 name,
114 info->timeout,
115 std::move(ri),
116 std::move(wi));
Patrick Venturefe75b192018-06-08 11:19:43 -0700117 mgmr.addSensor(info->type, name, std::move(sensor));
Patrick Venture5e929092018-06-08 10:55:23 -0700118 }
119 else if (info->type == "temp" || info->type == "margin")
120 {
121 // These sensors are read-only, but only for this application
122 // which only writes to fan sensors.
123 std::cerr << info->type << " readpath: " << info->readpath << "\n";
124
125 if (IOInterfaceType::EXTERNAL == rtype)
126 {
127 std::cerr << "Creating HostSensor: " << name
128 << " path: " << info->readpath << "\n";
129
130 /*
131 * The reason we handle this as a HostSensor is because it's
132 * not quite pluggable; but maybe it could be.
133 */
134 auto sensor = HostSensor::CreateTemp(
135 name,
136 info->timeout,
137 HostSensorBus,
138 info->readpath.c_str(),
139 deferSignals);
Patrick Venturefe75b192018-06-08 11:19:43 -0700140 mgmr.addSensor(info->type, name, std::move(sensor));
Patrick Venture5e929092018-06-08 10:55:23 -0700141 }
142 else
143 {
144 wi = std::make_unique<ReadOnlyNoExcept>();
145 auto sensor = std::make_unique<PluggableSensor>(
146 name,
147 info->timeout,
148 std::move(ri),
149 std::move(wi));
Patrick Venturefe75b192018-06-08 11:19:43 -0700150 mgmr.addSensor(info->type, name, std::move(sensor));
Patrick Venture5e929092018-06-08 10:55:23 -0700151 }
152 }
153 }
154
155 return mgmr;
156}
157