James Feist | 7136a5a | 2018-07-19 09:52:05 -0700 | [diff] [blame] | 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 | |
Patrick Venture | aadb30d | 2020-08-10 09:17:11 -0700 | [diff] [blame] | 17 | #include "dbuswrite.hpp" |
| 18 | |
| 19 | #include "dbushelper_interface.hpp" |
Patrick Venture | da4a5dd | 2018-08-31 09:42:48 -0700 | [diff] [blame] | 20 | |
Patrick Venture | 76ce5d7 | 2018-10-30 18:39:50 -0700 | [diff] [blame] | 21 | #include <phosphor-logging/log.hpp> |
James Feist | 7136a5a | 2018-07-19 09:52:05 -0700 | [diff] [blame] | 22 | #include <sdbusplus/bus.hpp> |
Patrick Venture | a83a3ec | 2020-08-04 09:52:05 -0700 | [diff] [blame] | 23 | |
Patrick Venture | 8729eb9 | 2020-08-10 10:38:44 -0700 | [diff] [blame^] | 24 | #include <exception> |
Patrick Venture | a83a3ec | 2020-08-04 09:52:05 -0700 | [diff] [blame] | 25 | #include <iostream> |
| 26 | #include <memory> |
Patrick Venture | f5e770b | 2018-10-30 12:28:53 -0700 | [diff] [blame] | 27 | #include <string> |
James Feist | 1f802f5 | 2019-02-08 13:51:43 -0800 | [diff] [blame] | 28 | #include <variant> |
Patrick Venture | f5e770b | 2018-10-30 12:28:53 -0700 | [diff] [blame] | 29 | |
Patrick Venture | a076487 | 2020-08-08 07:48:43 -0700 | [diff] [blame] | 30 | namespace pid_control |
| 31 | { |
| 32 | |
Patrick Venture | f5e770b | 2018-10-30 12:28:53 -0700 | [diff] [blame] | 33 | constexpr const char* pwmInterface = "xyz.openbmc_project.Control.FanPwm"; |
James Feist | 7136a5a | 2018-07-19 09:52:05 -0700 | [diff] [blame] | 34 | |
Patrick Venture | 76ce5d7 | 2018-10-30 18:39:50 -0700 | [diff] [blame] | 35 | using namespace phosphor::logging; |
| 36 | |
Patrick Venture | 8729eb9 | 2020-08-10 10:38:44 -0700 | [diff] [blame^] | 37 | std::unique_ptr<WriteInterface> DbusWritePercent::createDbusWrite( |
| 38 | const std::string& path, int64_t min, int64_t max, |
| 39 | std::unique_ptr<DbusHelperInterface> helper) |
Patrick Venture | f5e770b | 2018-10-30 12:28:53 -0700 | [diff] [blame] | 40 | { |
James Feist | 9fa90c1 | 2019-01-11 15:35:22 -0800 | [diff] [blame] | 41 | auto tempBus = sdbusplus::bus::new_system(); |
Patrick Venture | f5e770b | 2018-10-30 12:28:53 -0700 | [diff] [blame] | 42 | std::string connectionName; |
| 43 | |
| 44 | try |
| 45 | { |
Patrick Venture | 8729eb9 | 2020-08-10 10:38:44 -0700 | [diff] [blame^] | 46 | connectionName = helper->getService(tempBus, pwmInterface, path); |
Patrick Venture | f5e770b | 2018-10-30 12:28:53 -0700 | [diff] [blame] | 47 | } |
| 48 | catch (const std::exception& e) |
| 49 | { |
| 50 | return nullptr; |
| 51 | } |
| 52 | |
| 53 | return std::make_unique<DbusWritePercent>(path, min, max, connectionName); |
| 54 | } |
| 55 | |
James Feist | 7136a5a | 2018-07-19 09:52:05 -0700 | [diff] [blame] | 56 | void DbusWritePercent::write(double value) |
| 57 | { |
Patrick Venture | 5f59c0f | 2018-11-11 12:55:14 -0800 | [diff] [blame] | 58 | double minimum = getMin(); |
| 59 | double maximum = getMax(); |
James Feist | 7136a5a | 2018-07-19 09:52:05 -0700 | [diff] [blame] | 60 | |
Patrick Venture | 5f59c0f | 2018-11-11 12:55:14 -0800 | [diff] [blame] | 61 | double range = maximum - minimum; |
| 62 | double offset = range * value; |
| 63 | double ovalue = offset + minimum; |
James Feist | cd9e109 | 2018-10-08 13:06:41 -0700 | [diff] [blame] | 64 | |
| 65 | if (oldValue == static_cast<int64_t>(ovalue)) |
| 66 | { |
| 67 | return; |
| 68 | } |
James Feist | 80b5d9a | 2019-01-15 12:51:09 -0800 | [diff] [blame] | 69 | auto writeBus = sdbusplus::bus::new_default(); |
James Feist | 7136a5a | 2018-07-19 09:52:05 -0700 | [diff] [blame] | 70 | auto mesg = |
James Feist | 80b5d9a | 2019-01-15 12:51:09 -0800 | [diff] [blame] | 71 | writeBus.new_method_call(connectionName.c_str(), path.c_str(), |
| 72 | "org.freedesktop.DBus.Properties", "Set"); |
Andrew Geissler | 77ac856 | 2020-05-20 21:09:23 -0500 | [diff] [blame] | 73 | mesg.append(pwmInterface, "Target", |
| 74 | std::variant<uint64_t>(static_cast<uint64_t>(ovalue))); |
Patrick Venture | 76ce5d7 | 2018-10-30 18:39:50 -0700 | [diff] [blame] | 75 | |
| 76 | try |
James Feist | 7136a5a | 2018-07-19 09:52:05 -0700 | [diff] [blame] | 77 | { |
Patrick Venture | 76ce5d7 | 2018-10-30 18:39:50 -0700 | [diff] [blame] | 78 | // TODO: if we don't use the reply, call_noreply() |
James Feist | 80b5d9a | 2019-01-15 12:51:09 -0800 | [diff] [blame] | 79 | auto resp = writeBus.call(mesg); |
James Feist | 7136a5a | 2018-07-19 09:52:05 -0700 | [diff] [blame] | 80 | } |
Patrick Venture | 76ce5d7 | 2018-10-30 18:39:50 -0700 | [diff] [blame] | 81 | catch (const sdbusplus::exception::SdBusError& ex) |
| 82 | { |
| 83 | log<level::ERR>("Dbus Call Failure", entry("PATH=%s", path.c_str()), |
| 84 | entry("WHAT=%s", ex.what())); |
| 85 | } |
| 86 | |
James Feist | cd9e109 | 2018-10-08 13:06:41 -0700 | [diff] [blame] | 87 | oldValue = static_cast<int64_t>(ovalue); |
James Feist | 7136a5a | 2018-07-19 09:52:05 -0700 | [diff] [blame] | 88 | return; |
| 89 | } |
| 90 | |
Patrick Venture | f5e770b | 2018-10-30 12:28:53 -0700 | [diff] [blame] | 91 | std::unique_ptr<WriteInterface> |
| 92 | DbusWrite::createDbusWrite(const std::string& path, int64_t min, |
Patrick Venture | 8729eb9 | 2020-08-10 10:38:44 -0700 | [diff] [blame^] | 93 | int64_t max, |
| 94 | std::unique_ptr<DbusHelperInterface> helper) |
Patrick Venture | f5e770b | 2018-10-30 12:28:53 -0700 | [diff] [blame] | 95 | { |
James Feist | 9fa90c1 | 2019-01-11 15:35:22 -0800 | [diff] [blame] | 96 | auto tempBus = sdbusplus::bus::new_system(); |
Patrick Venture | f5e770b | 2018-10-30 12:28:53 -0700 | [diff] [blame] | 97 | std::string connectionName; |
| 98 | |
| 99 | try |
| 100 | { |
Patrick Venture | 8729eb9 | 2020-08-10 10:38:44 -0700 | [diff] [blame^] | 101 | connectionName = helper->getService(tempBus, pwmInterface, path); |
Patrick Venture | f5e770b | 2018-10-30 12:28:53 -0700 | [diff] [blame] | 102 | } |
| 103 | catch (const std::exception& e) |
| 104 | { |
| 105 | return nullptr; |
| 106 | } |
| 107 | |
| 108 | return std::make_unique<DbusWrite>(path, min, max, connectionName); |
| 109 | } |
| 110 | |
James Feist | 7136a5a | 2018-07-19 09:52:05 -0700 | [diff] [blame] | 111 | void DbusWrite::write(double value) |
| 112 | { |
James Feist | cd9e109 | 2018-10-08 13:06:41 -0700 | [diff] [blame] | 113 | if (oldValue == static_cast<int64_t>(value)) |
| 114 | { |
| 115 | return; |
| 116 | } |
James Feist | 80b5d9a | 2019-01-15 12:51:09 -0800 | [diff] [blame] | 117 | auto writeBus = sdbusplus::bus::new_default(); |
James Feist | 7136a5a | 2018-07-19 09:52:05 -0700 | [diff] [blame] | 118 | auto mesg = |
James Feist | 80b5d9a | 2019-01-15 12:51:09 -0800 | [diff] [blame] | 119 | writeBus.new_method_call(connectionName.c_str(), path.c_str(), |
| 120 | "org.freedesktop.DBus.Properties", "Set"); |
Andrew Geissler | 77ac856 | 2020-05-20 21:09:23 -0500 | [diff] [blame] | 121 | mesg.append(pwmInterface, "Target", |
| 122 | std::variant<uint64_t>(static_cast<uint64_t>(value))); |
Patrick Venture | 76ce5d7 | 2018-10-30 18:39:50 -0700 | [diff] [blame] | 123 | |
| 124 | try |
James Feist | 7136a5a | 2018-07-19 09:52:05 -0700 | [diff] [blame] | 125 | { |
Patrick Venture | 76ce5d7 | 2018-10-30 18:39:50 -0700 | [diff] [blame] | 126 | // TODO: consider call_noreplly |
James Feist | 80b5d9a | 2019-01-15 12:51:09 -0800 | [diff] [blame] | 127 | auto resp = writeBus.call(mesg); |
James Feist | 7136a5a | 2018-07-19 09:52:05 -0700 | [diff] [blame] | 128 | } |
Patrick Venture | 76ce5d7 | 2018-10-30 18:39:50 -0700 | [diff] [blame] | 129 | catch (const sdbusplus::exception::SdBusError& ex) |
| 130 | { |
| 131 | log<level::ERR>("Dbus Call Failure", entry("PATH=%s", path.c_str()), |
| 132 | entry("WHAT=%s", ex.what())); |
| 133 | } |
| 134 | |
James Feist | cd9e109 | 2018-10-08 13:06:41 -0700 | [diff] [blame] | 135 | oldValue = static_cast<int64_t>(value); |
James Feist | 7136a5a | 2018-07-19 09:52:05 -0700 | [diff] [blame] | 136 | return; |
| 137 | } |
Patrick Venture | a076487 | 2020-08-08 07:48:43 -0700 | [diff] [blame] | 138 | |
| 139 | } // namespace pid_control |