1 /**
2  * Copyright © 2016 IBM Corporation
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 #include <chrono>
17 #include <phosphor-logging/log.hpp>
18 #include <xyz/openbmc_project/Control/Host/server.hpp>
19 #include <utils.hpp>
20 #include "softoff.hpp"
21 #include "config.h"
22 namespace phosphor
23 {
24 namespace ipmi
25 {
26 
27 using namespace phosphor::logging;
28 using namespace sdbusplus::xyz::openbmc_project::Control::server;
29 
30 void SoftPowerOff::sendHostShutDownCmd()
31 {
32     std::string ctrlHostPath{CONTROL_HOST_OBJPATH};
33     ctrlHostPath += "0";
34     auto host = ::ipmi::getService(this->bus,
35                                    CONTROL_HOST_BUSNAME,
36                                    ctrlHostPath.c_str());
37 
38     auto method = bus.new_method_call(host.c_str(),
39                                       ctrlHostPath.c_str(),
40                                       CONTROL_HOST_BUSNAME,
41                                       "Execute");
42 
43     method.append(convertForMessage(Host::Command::SoftOff).c_str());
44 
45     auto reply = bus.call(method);
46     if (reply.is_method_error())
47     {
48         log<level::ERR>("Error in call to control host Execute");
49         // TODO openbmc/openbmc#851 - Once available, throw returned error
50         throw std::runtime_error("Error in call to control host Execute");
51     }
52 
53     return;
54 }
55 
56 
57 // Function called on host control signals
58 void SoftPowerOff::hostControlEvent(sdbusplus::message::message& msg)
59 {
60     std::string cmdCompleted{};
61     std::string cmdStatus{};
62 
63     msg.read(cmdCompleted, cmdStatus);
64 
65     log<level::DEBUG>("Host control signal values",
66                       entry("COMMAND=%s",cmdCompleted.c_str()),
67                       entry("STATUS=%s",cmdStatus.c_str()));
68 
69     if(Host::convertResultFromString(cmdStatus) == Host::Result::Success)
70     {
71         // Set our internal property indicating we got host attention
72         sdbusplus::xyz::openbmc_project::Ipmi::Internal
73                       ::server::SoftPowerOff::responseReceived(
74                               HostResponse::SoftOffReceived);
75 
76         // Start timer for host shutdown
77         using namespace std::chrono;
78         auto time = duration_cast<microseconds>(
79                         seconds(IPMI_HOST_SHUTDOWN_COMPLETE_TIMEOUT_SECS));
80         auto r = startTimer(time);
81         if (r < 0)
82         {
83             log<level::ERR>("Failure to start Host shutdown wait timer",
84                     entry("ERROR=%s", strerror(-r)));
85         }
86         else
87         {
88             log<level::INFO>("Timer started waiting for host to shutdown",
89                     entry("TIMEOUT_IN_MSEC=%llu",
90                         duration_cast<milliseconds>(seconds
91                             (IPMI_HOST_SHUTDOWN_COMPLETE_TIMEOUT_SECS))));
92         }
93     }
94     else
95     {
96         // An error on the initial attention is not considered an error, just
97         // exit normally and allow remaining shutdown targets to run
98         log<level::INFO>("Timeout on host attention, continue with power down");
99         completed = true;
100     }
101     return;
102 }
103 
104 // Starts a timer
105 int SoftPowerOff::startTimer(const std::chrono::microseconds& usec)
106 {
107     return timer.startTimer(usec);
108 }
109 
110 // Host Response handler
111 auto SoftPowerOff::responseReceived(HostResponse response) -> HostResponse
112 {
113     using namespace std::chrono;
114 
115     if (response == HostResponse::HostShutdown)
116     {
117         // Disable the timer since Host has quiesced and we are
118         // done with soft power off part
119         auto r = timer.setTimer(SD_EVENT_OFF);
120         if (r < 0)
121         {
122             log<level::ERR>("Failure to STOP the timer",
123                     entry("ERROR=%s", strerror(-r)));
124         }
125 
126         // This marks the completion of soft power off sequence.
127         completed = true;
128     }
129 
130     return sdbusplus::xyz::openbmc_project::Ipmi::Internal
131               ::server::SoftPowerOff::responseReceived(response);
132 }
133 
134 } // namespace ipmi
135 } // namespace phosphor
136