1 /*
2 // Copyright (c) 2018 Intel 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
17 #include "power_button.hpp"
18
19 #include "button_handler.hpp"
20
21 // add the button iface class to registry
22 static ButtonIFRegister<PowerButton> multiButtonRegister(
23 phosphor::button::numberOfChassis());
24
simPress()25 void PowerButton::simPress()
26 {
27 pressed();
28 }
29
simLongPress()30 void PowerButton::simLongPress()
31 {
32 pressedLong();
33 }
34
updatePressedTime()35 void PowerButton::updatePressedTime()
36 {
37 pressedTime = std::chrono::steady_clock::now();
38 }
39
getPressTime() const40 auto PowerButton::getPressTime() const
41 {
42 return pressedTime;
43 }
44
handleEvent(sd_event_source *,int fd,uint32_t)45 void PowerButton::handleEvent(sd_event_source* /* es */, int fd,
46 uint32_t /* revents */)
47 {
48 int n = -1;
49 char buf = '0';
50
51 n = ::lseek(fd, 0, SEEK_SET);
52
53 if (n < 0)
54 {
55 phosphor::logging::log<phosphor::logging::level::ERR>(
56 "POWER_BUTTON: lseek error!");
57 return;
58 }
59
60 n = ::read(fd, &buf, sizeof(buf));
61 if (n < 0)
62 {
63 phosphor::logging::log<phosphor::logging::level::ERR>(
64 "POWER_BUTTON: read error!");
65 return;
66 }
67
68 if (buf == '0')
69 {
70 phosphor::logging::log<phosphor::logging::level::DEBUG>(
71 "POWER_BUTTON: pressed");
72
73 updatePressedTime();
74 // emit pressed signal
75 pressed();
76 }
77 else
78 {
79 phosphor::logging::log<phosphor::logging::level::DEBUG>(
80 "POWER_BUTTON: released");
81
82 auto now = std::chrono::steady_clock::now();
83 auto d = std::chrono::duration_cast<std::chrono::microseconds>(
84 now - getPressTime());
85 // released
86 released(d.count());
87 }
88 }
89