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