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/*
* Copyright (C) 2020 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "sysman/fan/windows/os_fan_imp.h"
namespace L0 {
void GetOsTimestamp(uint64_t ×tamp) {
std::chrono::time_point<std::chrono::steady_clock> ts = std::chrono::steady_clock::now();
timestamp = std::chrono::duration_cast<std::chrono::microseconds>(ts.time_since_epoch()).count();
}
ze_result_t WddmFanImp::getProperties(zes_fan_properties_t *pProperties) {
pProperties->onSubdevice = false;
pProperties->subdeviceId = 0;
KmdSysman::RequestProperty request;
KmdSysman::ResponseProperty response;
request.commandId = KmdSysman::Command::Set;
request.componentId = KmdSysman::Component::FanComponent;
request.requestId = KmdSysman::Requests::Fans::CurrentNumOfControlPoints;
request.dataSize = sizeof(uint32_t);
uint32_t FanPoints = 2;
memcpy_s(request.dataBuffer, sizeof(uint32_t), &FanPoints, sizeof(uint32_t));
ze_result_t status = pKmdSysManager->requestSingle(request, response);
pProperties->canControl = (status == ZE_RESULT_SUCCESS);
request.dataSize = 0;
memset(request.dataBuffer, request.dataSize, sizeof(request.dataBuffer));
request.commandId = KmdSysman::Command::Get;
request.requestId = KmdSysman::Requests::Fans::MaxFanControlPointsSupported;
status = pKmdSysManager->requestSingle(request, response);
if (status != ZE_RESULT_SUCCESS) {
return status;
}
memcpy_s(&FanPoints, sizeof(uint32_t), response.dataBuffer, sizeof(uint32_t));
pProperties->maxPoints = static_cast<int32_t>(FanPoints);
pProperties->maxRPM = -1;
pProperties->supportedModes = 1;
pProperties->supportedUnits = 1;
return ZE_RESULT_SUCCESS;
}
ze_result_t WddmFanImp::getConfig(zes_fan_config_t *pConfig) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t WddmFanImp::setDefaultMode() {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t WddmFanImp::setFixedSpeedMode(const zes_fan_speed_t *pSpeed) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t WddmFanImp::setSpeedTableMode(const zes_fan_speed_table_t *pSpeedTable) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t WddmFanImp::getState(zes_fan_speed_units_t units, int32_t *pSpeed) {
if (units == ZES_FAN_SPEED_UNITS_PERCENT) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t status = ZE_RESULT_SUCCESS;
uint64_t currentTS = 0;
KmdSysman::RequestProperty request;
KmdSysman::ResponseProperty response;
request.commandId = KmdSysman::Command::Get;
request.componentId = KmdSysman::Component::FanComponent;
request.requestId = KmdSysman::Requests::Fans::CurrentFanSpeed;
status = pKmdSysManager->requestSingle(request, response);
if (status != ZE_RESULT_SUCCESS) {
return status;
}
uint32_t value = 0;
memcpy_s(&value, sizeof(uint32_t), response.dataBuffer, sizeof(uint32_t));
GetOsTimestamp(currentTS);
uint64_t diffTime = currentTS - prevTS;
uint32_t diffPulses = value - prevPulses;
double pulsesPerTime = static_cast<double>(diffPulses) / static_cast<double>(diffTime);
pulsesPerTime *= 1000000.0;
pulsesPerTime *= 60.0;
prevTS = currentTS;
prevPulses = value;
*pSpeed = static_cast<int32_t>(pulsesPerTime);
return status;
}
bool WddmFanImp::isFanModuleSupported() {
return true;
}
WddmFanImp::WddmFanImp(OsSysman *pOsSysman) {
WddmSysmanImp *pWddmSysmanImp = static_cast<WddmSysmanImp *>(pOsSysman);
pKmdSysManager = &pWddmSysmanImp->getKmdSysManager();
}
OsFan *OsFan::create(OsSysman *pOsSysman) {
WddmFanImp *pWddmFanImp = new WddmFanImp(pOsSysman);
return static_cast<OsFan *>(pWddmFanImp);
}
} // namespace L0
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