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/*
* Copyright (C) 2019 The Android Open Source Project
*
* 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 "Lights.h"
#include <log/log.h>
#include <android-base/logging.h>
namespace aidl {
namespace android {
namespace hardware {
namespace light {
const static std::map<LightType, const char*> kLogicalLights = {
{LightType::BACKLIGHT, LIGHT_ID_BACKLIGHT},
{LightType::KEYBOARD, LIGHT_ID_KEYBOARD},
{LightType::BUTTONS, LIGHT_ID_BUTTONS},
{LightType::BATTERY, LIGHT_ID_BATTERY},
{LightType::NOTIFICATIONS, LIGHT_ID_NOTIFICATIONS},
{LightType::ATTENTION, LIGHT_ID_ATTENTION},
{LightType::BLUETOOTH, LIGHT_ID_BLUETOOTH},
{LightType::WIFI, LIGHT_ID_WIFI}
};
light_device_t* getLightDevice(const char* name) {
light_device_t* lightDevice;
const hw_module_t* hwModule = NULL;
int ret = hw_get_module (LIGHTS_HARDWARE_MODULE_ID, &hwModule);
if (ret == 0) {
ret = hwModule->methods->open(hwModule, name,
reinterpret_cast<hw_device_t**>(&lightDevice));
if (ret != 0) {
ALOGE("light_open %s %s failed: %d", LIGHTS_HARDWARE_MODULE_ID, name, ret);
}
} else {
ALOGE("hw_get_module %s %s failed: %d", LIGHTS_HARDWARE_MODULE_ID, name, ret);
}
if (ret == 0) {
return lightDevice;
} else {
ALOGE("Light passthrough failed to load legacy HAL.");
return nullptr;
}
}
Lights::Lights() {
std::map<int, light_device_t*> lights;
std::vector<HwLight> availableLights;
int lightCount =0;
for(auto const &pair : kLogicalLights) {
LightType type = pair.first;
const char* name = pair.second;
light_device_t* lightDevice = getLightDevice(name);
lightCount++;
if (lightDevice != nullptr) {
HwLight hwLight{};
hwLight.id = (int)type;
hwLight.type = type;
hwLight.ordinal = 0;
lights[hwLight.id] = lightDevice;
availableLights.emplace_back(hwLight);
}
}
mAvailableLights = availableLights;
mLights = lights;
maxLights = lightCount;
}
ndk::ScopedAStatus Lights::setLightState(int id, const HwLightState& state) {
if (id >= maxLights) {
ALOGE("Invalid Light id : %d", id);
return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
}
auto it = mLights.find(id);
if (it == mLights.end()) {
ALOGE("Light not supported");
return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
}
light_device_t* hwLight = it->second;
light_state_t legacyState {
.color = static_cast<unsigned int>(state.color),
.flashMode = static_cast<int>(state.flashMode),
.flashOnMS = state.flashOnMs,
.flashOffMS = state.flashOffMs,
.brightnessMode = static_cast<int>(state.brightnessMode),
};
int ret = hwLight->set_light(hwLight, &legacyState);
switch (ret) {
case -ENOSYS:
return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
case 0:
return ndk::ScopedAStatus::ok();
default:
return ndk::ScopedAStatus::fromServiceSpecificError(ret);
}
}
ndk::ScopedAStatus Lights::getLights(std::vector<HwLight>* lights) {
for (auto i = mAvailableLights.begin(); i != mAvailableLights.end(); i++) {
lights->push_back(*i);
}
return ndk::ScopedAStatus::ok();
}
} // namespace light
} // namespace hardware
} // namespace android
} // namespace aidl
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