summaryrefslogtreecommitdiffstats
path: root/control/manager.cpp
blob: 10784730a98b713f5216a3ea21821d152fe58e7f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
/**
 * Copyright © 2017 IBM Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#include <algorithm>
#include <phosphor-logging/log.hpp>
#include <phosphor-logging/elog.hpp>
#include <phosphor-logging/elog-errors.hpp>
#include <xyz/openbmc_project/Common/error.hpp>
#include <unistd.h>
#include "manager.hpp"
#include "utility.hpp"
#include "sdbusplus.hpp"

namespace phosphor
{
namespace fan
{
namespace control
{

using namespace phosphor::logging;

constexpr auto SYSTEMD_SERVICE   = "org.freedesktop.systemd1";
constexpr auto SYSTEMD_OBJ_PATH  = "/org/freedesktop/systemd1";
constexpr auto SYSTEMD_INTERFACE = "org.freedesktop.systemd1.Manager";
constexpr auto FAN_CONTROL_READY_TARGET = "obmc-fan-control-ready@0.target";

/**
 * Check if a condition is true. Conditions are used to determine
 * which fan zone to use.
 *
 * @param[in] bus       - The D-Bus bus object
 * @param[in] condition - The condition to check if true
 * @return result       - True if the condition is true
 */
bool checkCondition(sdbusplus::bus::bus& bus, const auto& c)
{
    auto& type = std::get<conditionTypePos>(c);
    auto& properties = std::get<conditionPropertyListPos>(c);

    for (auto& p : properties)
    {
        auto value = std::get<propertyValuePos>(p);

        // TODO openbmc/openbmc#1769: Support more types than just getProperty.
        if (type.compare("getProperty") == 0)
        {
            auto propertyValue = util::SDBusPlus::getProperty<decltype(value)>(
                    bus,
                    std::get<propertyPathPos>(p),
                    std::get<propertyInterfacePos>(p),
                    std::get<propertyNamePos>(p));

            if (value != propertyValue)
            {
                return false;
            }
        }
    }
    return true;
}


//Note: Future code will check 'mode' before starting control algorithm
Manager::Manager(sdbusplus::bus::bus& bus,
                 phosphor::fan::event::EventPtr& events,
                 Mode mode) :
    _bus(bus)
{
    //Create the appropriate Zone objects based on the
    //actual system configuration.

    //Find the 1 ZoneGroup that meets all of its conditions
    for (auto& group : _zoneLayouts)
    {
        auto& conditions = std::get<conditionListPos>(group);

        if (std::all_of(conditions.begin(), conditions.end(),
                        [&bus](const auto& condition)
        {
            return checkCondition(bus, condition);
        }))
        {
            //Create a Zone object for each zone in this group
            auto& zones = std::get<zoneListPos>(group);

            for (auto& z : zones)
            {
                _zones.emplace(std::get<zoneNumPos>(z),
                               std::make_unique<Zone>(mode, _bus, events, z));
            }

            break;
        }
    }

}


void Manager::doInit()
{
    for (auto& z : _zones)
    {
        z.second->setFullSpeed();
    }

    auto delay = _powerOnDelay;
    while (delay > 0)
    {
        delay = sleep(delay);
    }

    util::SDBusPlus::callMethod(
            _bus,
            SYSTEMD_SERVICE,
            SYSTEMD_OBJ_PATH,
            SYSTEMD_INTERFACE,
            "StartUnit",
            FAN_CONTROL_READY_TARGET,
            "replace");
}

} // namespace control
} // namespace fan
} // namespace phosphor
OpenPOWER on IntegriCloud