119 lines
4 KiB
C++
119 lines
4 KiB
C++
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/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "Lights.h"
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#include <log/log.h>
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#include <android-base/logging.h>
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namespace aidl {
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namespace android {
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namespace hardware {
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namespace light {
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const static std::map<LightType, const char*> kLogicalLights = {
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{LightType::BACKLIGHT, LIGHT_ID_BACKLIGHT},
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{LightType::KEYBOARD, LIGHT_ID_KEYBOARD},
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{LightType::BUTTONS, LIGHT_ID_BUTTONS},
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{LightType::BATTERY, LIGHT_ID_BATTERY},
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{LightType::NOTIFICATIONS, LIGHT_ID_NOTIFICATIONS},
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{LightType::ATTENTION, LIGHT_ID_ATTENTION},
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{LightType::BLUETOOTH, LIGHT_ID_BLUETOOTH},
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{LightType::WIFI, LIGHT_ID_WIFI}
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};
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light_device_t* getLightDevice(const char* name) {
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light_device_t* lightDevice;
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const hw_module_t* hwModule = NULL;
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int ret = hw_get_module (LIGHTS_HARDWARE_MODULE_ID, &hwModule);
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if (ret == 0) {
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ret = hwModule->methods->open(hwModule, name,
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reinterpret_cast<hw_device_t**>(&lightDevice));
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if (ret != 0) {
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ALOGE("light_open %s %s failed: %d", LIGHTS_HARDWARE_MODULE_ID, name, ret);
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}
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} else {
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ALOGE("hw_get_module %s %s failed: %d", LIGHTS_HARDWARE_MODULE_ID, name, ret);
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}
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if (ret == 0) {
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return lightDevice;
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} else {
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ALOGE("Light passthrough failed to load legacy HAL.");
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return nullptr;
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}
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}
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Lights::Lights() {
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std::map<LightType, light_device_t*> lights;
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std::vector<HwLight> availableLights;
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for(auto const &pair : kLogicalLights) {
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LightType type = pair.first;
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const char* name = pair.second;
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light_device_t* lightDevice = getLightDevice(name);
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if (lightDevice != nullptr) {
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lights[type] = lightDevice;
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}
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HwLight hwLight{};
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hwLight.id = availableLights.size();
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hwLight.type = type;
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hwLight.ordinal = 0;
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availableLights.emplace_back(hwLight);
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}
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mAvailableLights = availableLights;
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mLights = lights;
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}
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ndk::ScopedAStatus Lights::setLightState(int id, const HwLightState& state) {
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if (id >= mAvailableLights.size()) {
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ALOGE("Invalid Light id : %d", id);
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return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
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}
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HwLight const& light = mAvailableLights[id];
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auto it = mLights.find(light.type);
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if (it == mLights.end()) {
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ALOGE("Light not supported");
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return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
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}
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light_device_t* hwLight = it->second;
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light_state_t legacyState {
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.color = static_cast<unsigned int>(state.color),
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.flashMode = static_cast<int>(state.flashMode),
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.flashOnMS = state.flashOnMs,
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.flashOffMS = state.flashOffMs,
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.brightnessMode = static_cast<int>(state.brightnessMode),
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};
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int ret = hwLight->set_light(hwLight, &legacyState);
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switch (ret) {
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case -ENOSYS:
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return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
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case 0:
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return ndk::ScopedAStatus::ok();
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default:
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return ndk::ScopedAStatus::fromServiceSpecificError(ret);
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}
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}
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ndk::ScopedAStatus Lights::getLights(std::vector<HwLight>* lights) {
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for (auto i = mAvailableLights.begin(); i != mAvailableLights.end(); i++) {
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lights->push_back(*i);
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}
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return ndk::ScopedAStatus::ok();
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}
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} // namespace light
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} // namespace hardware
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} // namespace android
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} // namespace aidl
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