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/*
* Copyright (c) 2020, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <ctype.h>
#include <errno.h>
#include <inttypes.h>
#include <stdlib.h>
#include <cerrno>
#include <mutex>
#include <string>
#include <android-base/file.h>
#include <android-base/logging.h>
#include <hidl/HidlTransportSupport.h>
#include "thermal.h"
#include "thermalUtils.h"
namespace android {
namespace hardware {
namespace thermal {
namespace V2_0 {
namespace implementation {
using ::android::hardware::interfacesEqual;
template <typename A, typename B>
Return<void> exit_hal(A _cb, hidl_vec<B> _data, std::string_view _msg) {
ThermalStatus _status;
_status.code = ThermalStatusCode::FAILURE;
_status.debugMessage = _msg.data();
LOG(ERROR) << _msg;
_cb(_status, _data);
return Void();
}
template <typename A>
Return<void> exit_hal(A _cb, std::string_view _msg) {
ThermalStatus _status;
_status.code = ThermalStatusCode::FAILURE;
_status.debugMessage = _msg.data();
LOG(ERROR) << _msg;
_cb(_status);
return Void();
}
Thermal::Thermal():
utils(std::bind(&Thermal::sendThrottlingChangeCB, this,
std::placeholders::_1))
{ }
Return<void> Thermal::getTemperatures(getTemperatures_cb _hidl_cb)
{
ThermalStatus status;
hidl_vec<Temperature_1_0> temperatures;
status.code = ThermalStatusCode::SUCCESS;
if (!utils.isSensorInitialized())
return exit_hal(_hidl_cb, temperatures,
"ThermalHAL not initialized properly.");
if (utils.readTemperatures(temperatures) <= 0)
return exit_hal(_hidl_cb, temperatures,
"Sensor Temperature read failure.");
_hidl_cb(status, temperatures);
return Void();
}
Return<void> Thermal::getCpuUsages(getCpuUsages_cb _hidl_cb)
{
ThermalStatus status;
hidl_vec<CpuUsage> cpu_usages;
status.code = ThermalStatusCode::SUCCESS;
if (!utils.isSensorInitialized())
return exit_hal(_hidl_cb, cpu_usages,
"ThermalHAL not initialized properly.");
if (utils.fetchCpuUsages(cpu_usages) <= 0)
return exit_hal(_hidl_cb, cpu_usages,
"CPU usage read failure.");
_hidl_cb(status, cpu_usages);
return Void();
}
Return<void> Thermal::getCoolingDevices(getCoolingDevices_cb _hidl_cb)
{
ThermalStatus status;
hidl_vec<CoolingDevice_1_0> cdev;
status.code = ThermalStatusCode::SUCCESS;
if (!utils.isCdevInitialized())
return exit_hal(_hidl_cb, cdev,
"ThermalHAL not initialized properly.");
/* V1 Cdev requires only Fan Support. */
_hidl_cb(status, cdev);
return Void();
}
Return<void> Thermal::getCurrentCoolingDevices(
bool filterType,
cdevType type,
getCurrentCoolingDevices_cb _hidl_cb)
{
ThermalStatus status;
hidl_vec<CoolingDevice> cdev;
status.code = ThermalStatusCode::SUCCESS;
if (!utils.isCdevInitialized())
return exit_hal(_hidl_cb, cdev,
"ThermalHAL not initialized properly.");
if (utils.readCdevStates(filterType, type, cdev) <= 0)
return exit_hal(_hidl_cb, cdev,
"Failed to read thermal cooling devices.");
_hidl_cb(status, cdev);
return Void();
}
Return<void> Thermal::getCurrentTemperatures(
bool filterType,
TemperatureType type,
getCurrentTemperatures_cb _hidl_cb)
{
ThermalStatus status;
hidl_vec<Temperature> temperatures;
status.code = ThermalStatusCode::SUCCESS;
if (!utils.isSensorInitialized())
return exit_hal(_hidl_cb, temperatures,
"ThermalHAL not initialized properly.");
if (utils.readTemperatures(filterType, type, temperatures) <= 0)
return exit_hal(_hidl_cb, temperatures,
"Sensor Temperature read failure.");
_hidl_cb(status, temperatures);
return Void();
}
Return<void> Thermal::getTemperatureThresholds(
bool filterType,
TemperatureType type,
getTemperatureThresholds_cb _hidl_cb)
{
ThermalStatus status;
hidl_vec<TemperatureThreshold> thresh;
status.code = ThermalStatusCode::SUCCESS;
if (!utils.isSensorInitialized())
return exit_hal(_hidl_cb, thresh,
"ThermalHAL not initialized properly.");
if (utils.readTemperatureThreshold(filterType, type, thresh) <= 0)
return exit_hal(_hidl_cb, thresh,
"Sensor Threshold read failure or type not supported.");
_hidl_cb(status, thresh);
return Void();
}
Return<void> Thermal::registerThermalChangedCallback(
const sp<IThermalChangedCallback> &callback,
bool filterType,
TemperatureType type,
registerThermalChangedCallback_cb _hidl_cb)
{
ThermalStatus status;
std::lock_guard<std::mutex> _lock(thermal_cb_mutex);
status.code = ThermalStatusCode::SUCCESS;
if (callback == nullptr)
return exit_hal(_hidl_cb, "Invalid nullptr callback");
if (type == TemperatureType::BCL_VOLTAGE ||
type == TemperatureType::BCL_CURRENT)
return exit_hal(_hidl_cb,
"BCL current and voltage notification not supported");
for (CallbackSetting _cb: cb) {
if (interfacesEqual(_cb.callback, callback))
return exit_hal(_hidl_cb,
"Same callback interface registered already");
}
cb.emplace_back(callback, filterType, type);
LOG(DEBUG) << "A callback has been registered to ThermalHAL, isFilter: " << filterType
<< " Type: " << android::hardware::thermal::V2_0::toString(type);
_hidl_cb(status);
return Void();
}
Return<void> Thermal::unregisterThermalChangedCallback(
const sp<IThermalChangedCallback> &callback,
unregisterThermalChangedCallback_cb _hidl_cb)
{
ThermalStatus status;
bool removed = false;
std::lock_guard<std::mutex> _lock(thermal_cb_mutex);
std::vector<CallbackSetting>::iterator it;
status.code = ThermalStatusCode::SUCCESS;
if (callback == nullptr)
return exit_hal(_hidl_cb, "Invalid nullptr callback");
for (it = cb.begin(); it != cb.end(); it++) {
if (interfacesEqual(it->callback, callback)) {
cb.erase(it);
LOG(DEBUG) << "callback unregistered. isFilter: "
<< it->is_filter_type << " Type: "
<< android::hardware::thermal::V2_0::toString(it->type);
removed = true;
break;
}
}
if (!removed)
return exit_hal(_hidl_cb, "The callback was not registered before");
_hidl_cb(status);
return Void();
}
void Thermal::sendThrottlingChangeCB(const Temperature &t)
{
std::lock_guard<std::mutex> _lock(thermal_cb_mutex);
std::vector<CallbackSetting>::iterator it;
LOG(DEBUG) << "Throttle Severity change: " << " Type: " << (int)t.type
<< " Name: " << t.name << " Value: " << t.value <<
" ThrottlingStatus: " << (int)t.throttlingStatus;
it = cb.begin();
while (it != cb.end()) {
if (!it->is_filter_type || it->type == t.type) {
Return<void> ret = it->callback->notifyThrottling(t);
if (!ret.isOk()) {
LOG(ERROR) << "Notify callback execution error. Removing";
it = cb.erase(it);
continue;
}
}
it++;
}
}
} // namespace implementation
} // namespace V2_0
} // namespace thermal
} // namespace hardware
} // namespace android