138 lines
3.5 KiB
C++
138 lines
3.5 KiB
C++
/*
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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 "android.hardware.power@1.3-service.xiaomi_sm6250"
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#include <linux/input.h>
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#include "Power.h"
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constexpr static char const* inputDevicesDirectory = "/dev/input/";
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constexpr static int wakeupModeOn = 5;
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constexpr static int wakeupModeOff = 4;
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namespace android {
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namespace hardware {
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namespace power {
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namespace V1_3 {
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namespace implementation {
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// Methods from V1_0::IPower follow.
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Return<void> Power::setInteractive(bool) {
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return Void();
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}
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Return<void> Power::powerHint(PowerHint_1_0, int32_t) {
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return Void();
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}
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bool isSupportedInputName(char* name) {
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return strcmp(name, "fts_ts") == 0
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|| strcmp(name, "NVTCapacitiveTouchScreen") == 0;
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}
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int openInputFd() {
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DIR *dir = opendir(inputDevicesDirectory);
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if (dir == NULL) {
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return -1;
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}
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struct dirent *ent;
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int fd;
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int rc;
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while ((ent = readdir(dir)) != NULL) {
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if (ent->d_type != DT_CHR)
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continue;
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char absolute_path[PATH_MAX] = {0};
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char name[80] = {0};
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strcpy(absolute_path, inputDevicesDirectory);
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strcat(absolute_path, ent->d_name);
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fd = open(absolute_path, O_RDWR);
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if (fd < 0)
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continue;
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rc = ioctl(fd, EVIOCGNAME(sizeof(name) - 1), &name);
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if (rc > 0 && isSupportedInputName(name))
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break;
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close(fd);
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fd = -1;
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}
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closedir(dir);
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return fd;
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}
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Return<void> Power::setFeature(Feature feature, bool activate) {
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switch (feature) {
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case Feature::POWER_FEATURE_DOUBLE_TAP_TO_WAKE: {
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int fd = openInputFd();
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if (fd < 0) {
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ALOGW("No touchscreen input devices that support DT2W were found");
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return Void();
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}
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struct input_event ev;
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ev.type = EV_SYN;
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ev.code = SYN_CONFIG;
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ev.value = activate ? wakeupModeOn : wakeupModeOff;
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write(fd, &ev, sizeof(ev));
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close(fd);
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} break;
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default:
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break;
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}
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return Void();
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}
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Return<void> Power::getPlatformLowPowerStats(getPlatformLowPowerStats_cb _hidl_cb) {
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ALOGI("getPlatformLowPowerStats not supported, do nothing");
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_hidl_cb({}, Status::SUCCESS);
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return Void();
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}
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// Methods from V1_1::IPower follow.
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Return<void> Power::getSubsystemLowPowerStats(getSubsystemLowPowerStats_cb _hidl_cb) {
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ALOGI("getSubsystemLowPowerStats not supported, do nothing");
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_hidl_cb({}, Status::SUCCESS);
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return Void();
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}
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Return<void> Power::powerHintAsync(PowerHint_1_0, int32_t) {
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return Void();
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}
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// Methods from V1_2::IPower follow.
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Return<void> Power::powerHintAsync_1_2(PowerHint_1_2, int32_t) {
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return Void();
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}
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// Methods from V1_3::IPower follow.
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Return<void> Power::powerHintAsync_1_3(PowerHint_1_3, int32_t) {
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return Void();
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}
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} // namespace implementation
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} // namespace V1_3
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} // namespace power
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} // namespace hardware
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} // namespace android
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