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Patrick Venture863b9242018-03-08 08:29:23 -08001/**
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 */
Patrick Ventureda4a5dd2018-08-31 09:42:48 -070016#include "dbuspassive.hpp"
17
18#include "dbus/util.hpp"
19
Patrick Venture863b9242018-03-08 08:29:23 -080020#include <chrono>
21#include <cmath>
Patrick Venture0ef1faf2018-06-13 12:50:53 -070022#include <memory>
Patrick Venture863b9242018-03-08 08:29:23 -080023#include <mutex>
Patrick Venture0ef1faf2018-06-13 12:50:53 -070024#include <sdbusplus/bus.hpp>
25#include <string>
Patrick Venture863b9242018-03-08 08:29:23 -080026
Patrick Venture563a3562018-10-30 09:31:26 -070027std::unique_ptr<ReadInterface> DbusPassive::createDbusPassive(
Patrick Ventureda4a5dd2018-08-31 09:42:48 -070028 sdbusplus::bus::bus& bus, const std::string& type, const std::string& id,
29 DbusHelperInterface* helper)
Patrick Venture0ef1faf2018-06-13 12:50:53 -070030{
31 if (helper == nullptr)
32 {
33 return nullptr;
34 }
Patrick Venture7af157b2018-10-30 11:24:40 -070035 if (!validType(type))
Patrick Venture0ef1faf2018-06-13 12:50:53 -070036 {
37 return nullptr;
38 }
39
40 return std::make_unique<DbusPassive>(bus, type, id, helper);
41}
Patrick Venture863b9242018-03-08 08:29:23 -080042
Patrick Ventureda4a5dd2018-08-31 09:42:48 -070043DbusPassive::DbusPassive(sdbusplus::bus::bus& bus, const std::string& type,
44 const std::string& id, DbusHelperInterface* helper) :
45 ReadInterface(),
Patrick Venture7af157b2018-10-30 11:24:40 -070046 _bus(bus), _signal(bus, getMatch(type, id).c_str(), dbusHandleSignal, this),
Patrick Ventureda4a5dd2018-08-31 09:42:48 -070047 _id(id), _helper(helper)
Patrick Venture863b9242018-03-08 08:29:23 -080048{
49 /* Need to get the scale and initial value */
50 auto tempBus = sdbusplus::bus::new_default();
51 /* service == busname */
Patrick Venture7af157b2018-10-30 11:24:40 -070052 std::string path = getSensorPath(type, id);
Patrick Venture34ddc902018-10-30 11:05:17 -070053
54 /* getService can except, should this be in the factory? */
Patrick Venture563a3562018-10-30 09:31:26 -070055 std::string service = _helper->getService(tempBus, sensorintf, path);
Patrick Venture863b9242018-03-08 08:29:23 -080056
57 struct SensorProperties settings;
Patrick Venture563a3562018-10-30 09:31:26 -070058 _helper->getProperties(tempBus, service, path, &settings);
Patrick Venture863b9242018-03-08 08:29:23 -080059
60 _scale = settings.scale;
61 _value = settings.value * pow(10, _scale);
62 _updated = std::chrono::high_resolution_clock::now();
Patrick Venture563a3562018-10-30 09:31:26 -070063 _failed = _helper->thresholdsAsserted(tempBus, service, path);
Patrick Venture863b9242018-03-08 08:29:23 -080064}
65
66ReadReturn DbusPassive::read(void)
67{
68 std::lock_guard<std::mutex> guard(_lock);
69
Patrick Ventureda4a5dd2018-08-31 09:42:48 -070070 struct ReadReturn r = {_value, _updated};
Patrick Venture863b9242018-03-08 08:29:23 -080071
72 return r;
73}
74
75void DbusPassive::setValue(double value)
76{
77 std::lock_guard<std::mutex> guard(_lock);
78
79 _value = value;
80 _updated = std::chrono::high_resolution_clock::now();
81}
82
James Feist36b7d8e2018-10-05 15:39:01 -070083bool DbusPassive::getFailed(void) const
84{
85 return _failed;
86}
87
88void DbusPassive::setFailed(bool value)
89{
90 _failed = value;
91}
92
Patrick Venture863b9242018-03-08 08:29:23 -080093int64_t DbusPassive::getScale(void)
94{
95 return _scale;
96}
97
Patrick Venture563a3562018-10-30 09:31:26 -070098std::string DbusPassive::getID(void)
Patrick Venture863b9242018-03-08 08:29:23 -080099{
100 return _id;
101}
102
Patrick Venture7af157b2018-10-30 11:24:40 -0700103int handleSensorValue(sdbusplus::message::message& msg, DbusPassive* owner)
Patrick Venture863b9242018-03-08 08:29:23 -0800104{
Patrick Venture863b9242018-03-08 08:29:23 -0800105 std::string msgSensor;
James Feist36b7d8e2018-10-05 15:39:01 -0700106 std::map<std::string, sdbusplus::message::variant<int64_t, double, bool>>
107 msgData;
Patrick Ventured0c75662018-06-12 19:03:21 -0700108
109 msg.read(msgSensor, msgData);
Patrick Venture863b9242018-03-08 08:29:23 -0800110
111 if (msgSensor == "xyz.openbmc_project.Sensor.Value")
112 {
113 auto valPropMap = msgData.find("Value");
114 if (valPropMap != msgData.end())
115 {
James Feistd7a55bf2018-10-11 14:40:07 -0700116 double value = sdbusplus::message::variant_ns::apply_visitor(
117 VariantToDoubleVisitor(), valPropMap->second);
Patrick Venture863b9242018-03-08 08:29:23 -0800118
James Feistc065cf12018-07-05 10:23:11 -0700119 value *= std::pow(10, owner->getScale());
Patrick Venture863b9242018-03-08 08:29:23 -0800120
Patrick Ventured0c75662018-06-12 19:03:21 -0700121 owner->setValue(value);
Patrick Venture863b9242018-03-08 08:29:23 -0800122 }
123 }
James Feist36b7d8e2018-10-05 15:39:01 -0700124 else if (msgSensor == "xyz.openbmc_project.Sensor.Threshold.Critical")
125 {
126 auto criticalAlarmLow = msgData.find("CriticalAlarmLow");
127 auto criticalAlarmHigh = msgData.find("CriticalAlarmHigh");
128 if (criticalAlarmHigh == msgData.end() &&
129 criticalAlarmLow == msgData.end())
130 {
131 return 0;
132 }
133
134 bool asserted = false;
135 if (criticalAlarmLow != msgData.end())
136 {
137 asserted = sdbusplus::message::variant_ns::get<bool>(
138 criticalAlarmLow->second);
139 }
140
141 // checking both as in theory you could de-assert one threshold and
142 // assert the other at the same moment
143 if (!asserted && criticalAlarmHigh != msgData.end())
144 {
145 asserted = sdbusplus::message::variant_ns::get<bool>(
146 criticalAlarmHigh->second);
147 }
148 owner->setFailed(asserted);
149 }
Patrick Venture863b9242018-03-08 08:29:23 -0800150
151 return 0;
152}
Patrick Ventured0c75662018-06-12 19:03:21 -0700153
Patrick Venture7af157b2018-10-30 11:24:40 -0700154int dbusHandleSignal(sd_bus_message* msg, void* usrData, sd_bus_error* err)
Patrick Ventured0c75662018-06-12 19:03:21 -0700155{
156 auto sdbpMsg = sdbusplus::message::message(msg);
157 DbusPassive* obj = static_cast<DbusPassive*>(usrData);
158
Patrick Venture7af157b2018-10-30 11:24:40 -0700159 return handleSensorValue(sdbpMsg, obj);
Patrick Ventured0c75662018-06-12 19:03:21 -0700160}