| /* |
| // Copyright (c) 2018 Intel 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 "power_control.hpp" |
| |
| bool PowerControl::forcePowerOff() |
| { |
| return true; |
| } |
| |
| int32_t PowerControl::triggerReset() |
| { |
| int ret = 0; |
| int count = 0; |
| char buf = '0'; |
| |
| phosphor::logging::log<phosphor::logging::level::DEBUG>("triggerReset"); |
| |
| ret = ::lseek(reset_out_fd, 0, SEEK_SET); |
| if (ret < 0) |
| { |
| phosphor::logging::log<phosphor::logging::level::ERR>("lseek error!"); |
| throw sdbusplus::xyz::openbmc_project::Chassis::Common::Error:: |
| IOError(); |
| } |
| |
| buf = '0'; |
| |
| ret = ::write(reset_out_fd, &buf, sizeof(buf)); |
| if (ret < 0) |
| { |
| phosphor::logging::log<phosphor::logging::level::ERR>("write error!"); |
| throw sdbusplus::xyz::openbmc_project::Chassis::Common::Error:: |
| IOError(); |
| } |
| |
| std::this_thread::sleep_for(std::chrono::milliseconds(RESET_PULSE_TIME_MS)); |
| |
| buf = '1'; |
| ret = ::write(reset_out_fd, &buf, sizeof(buf)); |
| if (ret < 0) |
| { |
| phosphor::logging::log<phosphor::logging::level::ERR>("write error!"); |
| throw sdbusplus::xyz::openbmc_project::Chassis::Common::Error:: |
| IOError(); |
| } |
| return 0; |
| } |
| |
| int32_t PowerControl::setPowerState(int newState) |
| { |
| int ret = 0; |
| int count = 0; |
| char buf = '0'; |
| |
| if (newState < 0 || newState >= powerStateMax) |
| { |
| phosphor::logging::log<phosphor::logging::level::ERR>( |
| "error! invalid parameter!"); |
| return -1; |
| } |
| |
| phosphor::logging::log<phosphor::logging::level::DEBUG>( |
| "setPowerState", phosphor::logging::entry("NEWSTATE=%d", newState)); |
| |
| if (powerStateReset == newState) |
| { |
| phosphor::logging::log<phosphor::logging::level::DEBUG>( |
| "setPowerState system reset"); |
| triggerReset(); |
| return 0; |
| } |
| |
| if (state() == newState) |
| { |
| phosphor::logging::log<phosphor::logging::level::WARNING>( |
| "Same powerstate", |
| phosphor::logging::entry("NEWSTATE=%d", newState)); |
| return 0; |
| } |
| |
| state(newState); |
| |
| ret = ::lseek(power_up_fd, 0, SEEK_SET); |
| if (ret < 0) |
| { |
| phosphor::logging::log<phosphor::logging::level::ERR>("lseek error!"); |
| throw sdbusplus::xyz::openbmc_project::Chassis::Common::Error:: |
| IOError(); |
| } |
| |
| buf = '0'; |
| |
| ret = ::write(power_up_fd, &buf, sizeof(buf)); |
| if (ret < 0) |
| { |
| phosphor::logging::log<phosphor::logging::level::ERR>("write error!"); |
| throw sdbusplus::xyz::openbmc_project::Chassis::Common::Error:: |
| IOError(); |
| } |
| |
| phosphor::logging::log<phosphor::logging::level::DEBUG>( |
| "setPowerState power on"); |
| std::this_thread::sleep_for(std::chrono::milliseconds(POWER_PULSE_TIME_MS)); |
| |
| buf = '1'; |
| ret = ::write(power_up_fd, &buf, sizeof(buf)); |
| if (ret < 0) |
| { |
| phosphor::logging::log<phosphor::logging::level::ERR>("write error!"); |
| throw sdbusplus::xyz::openbmc_project::Chassis::Common::Error:: |
| IOError(); |
| } |
| |
| if (0 == newState) |
| { |
| /* |
| * For power off, currently there is a known issue, the "long-press" |
| * power button cannot power off the host, a workaround is perform force |
| * power off after waitting for a while |
| */ |
| std::this_thread::sleep_for( |
| std::chrono::milliseconds(POWER_PULSE_TIME_MS)); |
| if (1 == pGood()) |
| { // still on, force off! |
| phosphor::logging::log<phosphor::logging::level::DEBUG>( |
| "Perform force power off"); |
| count = 0; |
| do |
| { |
| if (count++ > 5) |
| { |
| phosphor::logging::log<phosphor::logging::level::ERR>( |
| "forcePowerOff error!"); |
| throw sdbusplus::xyz::openbmc_project::Chassis::Common:: |
| Error::IOError(); |
| } |
| ret = forcePowerOff(); |
| std::this_thread::sleep_for( |
| std::chrono::milliseconds(POLLING_INTERVAL_MS)); |
| } while (ret != 0); |
| } |
| } |
| return 0; |
| } |