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- /*
- * Copyright (C) 2024 The LineageOS Project
- *
- * SPDX-License-Identifier: Apache-2.0
- */
- #define LOG_TAG "NonUiNotifier"
- #include "NonUiNotifier.h"
- #include <android-base/logging.h>
- #include <android-base/unique_fd.h>
- #include <linux/xiaomi_touch.h>
- #include <poll.h>
- #include <sys/ioctl.h>
- #include "SensorNotifierUtils.h"
- static const std::string kTouchDevice = "/dev/xiaomi-touch";
- using android::hardware::Return;
- using android::hardware::Void;
- using android::hardware::sensors::V1_0::Event;
- namespace {
- class NonUiSensorCallback : public IEventQueueCallback {
- public:
- NonUiSensorCallback() {
- touch_fd_ = android::base::unique_fd(open(kTouchDevice.c_str(), O_RDWR));
- if (touch_fd_.get() == -1) {
- LOG(ERROR) << "failed to open " << kTouchDevice;
- }
- }
- Return<void> onEvent(const Event& e) {
- struct touch_mode_request request = {
- .mode = TOUCH_MODE_NONUI_MODE,
- .value = static_cast<int>(e.u.scalar),
- };
- ioctl(touch_fd_.get(), TOUCH_IOC_SET_CUR_VALUE, &request);
- return Void();
- }
- private:
- android::base::unique_fd touch_fd_;
- };
- } // namespace
- NonUiNotifier::NonUiNotifier(sp<ISensorManager> manager) : SensorNotifier(manager) {
- initializeSensorQueue("xiaomi.sensor.nonui", true, new NonUiSensorCallback());
- }
- NonUiNotifier::~NonUiNotifier() {
- deactivate();
- }
- void NonUiNotifier::notify() {
- Result res;
- // Enable states of touchscreen sensors
- const std::vector<const char*> paths = {
- "/sys/class/touch/touch_dev/fod_longpress_gesture_enabled",
- "/sys/class/touch/touch_dev/gesture_single_tap_enabled",
- "/sys/class/touch/touch_dev/gesture_double_tap_enabled"};
- pollfd* pollfds = new pollfd[paths.size()];
- for (size_t i = 0; i < paths.size(); ++i) {
- int fd = open(paths[i], O_RDONLY);
- if (fd < 0) {
- LOG(ERROR) << "failed to open " << paths[i] << " , err: " << fd;
- mActive = false;
- return;
- }
- pollfds[i].fd = fd;
- pollfds[i].events = POLLPRI;
- }
- while (mActive) {
- int rc = poll(pollfds, paths.size(), -1);
- if (rc < 0) {
- LOG(ERROR) << "failed to poll, err: " << rc;
- continue;
- }
- bool enabled = false;
- for (size_t i = 0; i < paths.size(); ++i) {
- enabled = enabled || readBool(pollfds[i].fd);
- }
- if (enabled) {
- res = mQueue->enableSensor(mSensorHandle, 20000 /* sample period */, 0 /* latency */);
- if (res != Result::OK) {
- LOG(ERROR) << "failed to enable sensor";
- }
- } else {
- res = mQueue->disableSensor(mSensorHandle);
- if (res != Result::OK) {
- LOG(DEBUG) << "failed to disable sensor";
- }
- }
- }
- }
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