* On samsung, kernel exposes a sysfs node to disable fastcharge at will, depending on what the user sets in battery settings UI. * Disabling fast charge may be useful for reducing the heat produced by the device while charging, or for extending the lifespan of the battery * This commit introduces the fastcharge HIDL, which writes in the node /sys/class/sec/switch/afc_disable 0 or 1 depeding on user selection. 0 means that fastcharge is enabled, while 1 means that fastcharge is disabled Change-Id: I369ba9c437b3a83a88c2ce74d603b7d7ddd9cfbbtirimbino
parent
c143344242
commit
2f88aeaf27
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#
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# Copyright (C) 2020 The LineageOS 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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LOCAL_PATH := $(call my-dir)
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include $(CLEAR_VARS) |
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LOCAL_SRC_FILES := \
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FastCharge.cpp \
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service.cpp
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LOCAL_C_INCLUDES := \
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$(LOCAL_PATH)/include \
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LOCAL_SHARED_LIBRARIES := \
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libbase \
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libbinder \
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libhidlbase \
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libhidltransport \
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libutils \
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vendor.lineage.fastcharge@1.0
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LOCAL_MODULE := vendor.lineage.fastcharge@1.0-service.samsung
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LOCAL_INIT_RC := vendor.lineage.fastcharge@1.0-service.samsung.rc
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LOCAL_MODULE_RELATIVE_PATH := hw
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LOCAL_MODULE_TAGS := optional
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LOCAL_MODULE_OWNER := samsung
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LOCAL_VINTF_FRAGMENTS := vendor.lineage.fastcharge@1.0-service.samsung.xml
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LOCAL_VENDOR_MODULE := true
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include $(BUILD_EXECUTABLE) |
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/*
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* Copyright (C) 2020 The LineageOS 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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#define LOG_TAG "fastcharge@1.0-service.samsung" |
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#include "FastCharge.h" |
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#include <android-base/logging.h> |
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#include <fstream> |
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#include <iostream> |
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#include "samsung_fastcharge.h" |
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namespace vendor { |
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namespace lineage { |
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namespace fastcharge { |
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namespace V1_0 { |
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namespace implementation { |
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/*
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* Write value to path and close file. |
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*/ |
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template <typename T> |
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static void set(const std::string& path, const T& value) { |
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std::ofstream file(path); |
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if (!file) { |
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PLOG(ERROR) << "Failed to open: " << path; |
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return; |
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} |
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LOG(DEBUG) << "write: " << path << " value: " << value; |
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file << value << std::endl; |
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if (!file) { |
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PLOG(ERROR) << "Failed to write: " << path << " value: " << value; |
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} |
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} |
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template <typename T> |
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static T get(const std::string& path, const T& def) { |
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std::ifstream file(path); |
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if (!file) { |
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PLOG(ERROR) << "Failed to open: " << path; |
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return def; |
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} |
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T result; |
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file >> result; |
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if (file.fail()) { |
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PLOG(ERROR) << "Failed to read: " << path; |
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return def; |
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} else { |
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LOG(DEBUG) << "read: " << path << " value: " << result; |
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return result; |
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} |
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} |
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Return<bool> FastCharge::isEnabled() { |
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return get(FASTCHARGE_PATH, 0) < 1; |
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} |
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Return<bool> FastCharge::setEnabled(bool enable) { |
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set(FASTCHARGE_PATH, enable ? 0 : 1); |
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return isEnabled(); |
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} |
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} // namespace implementation
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} // namespace V1_0
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} // namespace fastcharge
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} // namespace lineage
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} // namespace vendor
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@ -0,0 +1,52 @@ |
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/*
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* Copyright (C) 2020 The LineageOS 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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#ifndef VENDOR_LINEAGE_FASTCHARGE_V1_0_FASTCHARGE_H |
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#define VENDOR_LINEAGE_FASTCHARGE_V1_0_FASTCHARGE_H |
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#include <hidl/MQDescriptor.h> |
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#include <hidl/Status.h> |
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#include <vendor/lineage/fastcharge/1.0/IFastCharge.h> |
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namespace vendor { |
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namespace lineage { |
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namespace fastcharge { |
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namespace V1_0 { |
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namespace implementation { |
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using ::android::sp; |
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using ::android::hardware::hidl_array; |
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using ::android::hardware::hidl_memory; |
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using ::android::hardware::hidl_string; |
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using ::android::hardware::hidl_vec; |
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using ::android::hardware::Return; |
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using ::android::hardware::Void; |
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using ::vendor::lineage::fastcharge::V1_0::IFastCharge; |
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struct FastCharge : public IFastCharge { |
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Return<bool> isEnabled() override; |
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Return<bool> setEnabled(bool enable) override; |
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}; |
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} // namespace implementation
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} // namespace V1_0
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} // namespace fastcharge
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} // namespace lineage
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} // namespace vendor
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#endif // VENDOR_LINEAGE_FASTCHARGE_V1_0_FASTCHARGE_H
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@ -0,0 +1,22 @@ |
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/*
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* Copyright (C) 2020 The LineageOS 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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#ifndef SAMSUNG_FASTCHARGE_H |
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#define SAMSUNG_FASTCHARGE_H |
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#define FASTCHARGE_PATH "/sys/class/sec/switch/afc_disable" |
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#endif // SAMSUNG_FASTCHARGE_H
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@ -0,0 +1,50 @@ |
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/*
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* Copyright (C) 2020 The LineageOS 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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#define LOG_TAG "fastcharge@1.0-service.samsung" |
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#include <android-base/logging.h> |
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#include <hidl/HidlTransportSupport.h> |
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#include "FastCharge.h" |
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using android::hardware::configureRpcThreadpool; |
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using android::hardware::joinRpcThreadpool; |
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using vendor::lineage::fastcharge::V1_0::IFastCharge; |
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using vendor::lineage::fastcharge::V1_0::implementation::FastCharge; |
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using android::OK; |
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using android::status_t; |
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int main() { |
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android::sp<FastCharge> service = new FastCharge(); |
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configureRpcThreadpool(1, true); |
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status_t status = service->registerAsService(); |
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if (status != OK) { |
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LOG(ERROR) << "Cannot register FastCharge HAL service."; |
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return 1; |
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} |
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LOG(INFO) << "FastCharge HAL service ready."; |
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joinRpcThreadpool(); |
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LOG(ERROR) << "FastCharge HAL service failed to join thread pool."; |
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return 1; |
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} |
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service vendor.fastcharge-hal-1-0 /vendor/bin/hw/vendor.lineage.fastcharge@1.0-service.samsung |
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class hal |
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user system |
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group system |
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<manifest version="1.0" type="device"> |
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<hal format="hidl"> |
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<name>vendor.lineage.fastcharge</name> |
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<transport>hwbinder</transport> |
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<version>1.0</version> |
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<interface> |
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<name>IFastCharge</name> |
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<instance>default</instance> |
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</interface> |
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</hal> |
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</manifest> |
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Reference in new issue