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88 lines
2.2 KiB
88 lines
2.2 KiB
4 months ago
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/*
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* Copyright (C) 2020 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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#define LOG_TAG "powerhal-libperfmgr"
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#include <errno.h>
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#include <unistd.h>
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#include <cutils/sockets.h>
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#include <log/log.h>
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#include "DisplayLowPower.h"
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namespace aidl {
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namespace google {
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namespace hardware {
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namespace power {
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namespace impl {
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namespace pixel {
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DisplayLowPower::DisplayLowPower() : mFossStatus(false) {}
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void DisplayLowPower::Init() {
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ConnectPpsDaemon();
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}
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void DisplayLowPower::SetDisplayLowPower(bool enable) {
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SetFoss(enable);
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}
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void DisplayLowPower::ConnectPpsDaemon() {
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constexpr const char kPpsDaemon[] = "pps";
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mPpsSocket.reset(
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socket_local_client(kPpsDaemon, ANDROID_SOCKET_NAMESPACE_RESERVED, SOCK_STREAM));
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if (mPpsSocket.get() < 0) {
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ALOGW("Connecting to PPS daemon failed (%s)", strerror(errno));
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}
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}
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int DisplayLowPower::SendPpsCommand(const std::string_view cmd) {
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if (TEMP_FAILURE_RETRY(write(mPpsSocket.get(), cmd.data(), cmd.size())) < 0) {
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ALOGE("Failed to send pps command '%s' over socket (%s)", cmd.data(), strerror(errno));
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return -1;
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}
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return 0;
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}
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void DisplayLowPower::SetFoss(bool enable) {
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if (mPpsSocket.get() < 0 || mFossStatus == enable) {
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return;
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}
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ALOGI("%s foss", (enable) ? "Enable" : "Disable");
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std::string_view foss_cmd;
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if (enable) {
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foss_cmd = "foss:on";
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} else {
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foss_cmd = "foss:off";
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}
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if (!SendPpsCommand(foss_cmd)) {
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mFossStatus = enable;
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}
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}
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} // namespace pixel
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} // namespace impl
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} // namespace power
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} // namespace hardware
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} // namespace google
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} // namespace aidl
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