device_xiaomi_sm6150-common/fod/FingerprintInscreen.cpp
Demon000 e456f36fe1
davinci: fod: Improve semantics
* do not use (void) to silence unused parameters
 * do not specify namespace for IFingerprintInscreenCallback

Change-Id: Ife9d0799a091c539028f775a728d2c8c31ffbf98
2020-08-05 14:03:32 +02:00

157 lines
3.9 KiB
C++

/*
* Copyright (C) 2019 The LineageOS Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "FingerprintInscreenService"
#include "FingerprintInscreen.h"
#include <android-base/logging.h>
#include <fstream>
#include <cmath>
#define COMMAND_NIT 10
#define PARAM_NIT_FOD 3
#define PARAM_NIT_NONE 0
#define FOD_HBM_PATH "/sys/devices/platform/soc/soc:qcom,dsi-display/fod_hbm"
#define FOD_HBM_ON 1
#define FOD_HBM_OFF 0
#define FOD_STATUS_PATH "/sys/devices/virtual/touch/tp_dev/fod_status"
#define FOD_STATUS_ON 1
#define FOD_STATUS_OFF 0
#define FOD_SENSOR_X 445
#define FOD_SENSOR_Y 1931
#define FOD_SENSOR_SIZE 190
#define BRIGHTNESS_PATH "/sys/class/backlight/panel0-backlight/brightness"
namespace {
template <typename T>
static T get(const std::string& path, const T& def) {
std::ifstream file(path);
T result;
file >> result;
return file.fail() ? def : result;
}
template <typename T>
static void set(const std::string& path, const T& value) {
std::ofstream file(path);
file << value;
}
} // anonymous namespace
namespace vendor {
namespace lineage {
namespace biometrics {
namespace fingerprint {
namespace inscreen {
namespace V1_0 {
namespace implementation {
FingerprintInscreen::FingerprintInscreen() {
xiaomiFingerprintService = IXiaomiFingerprint::getService();
}
Return<int32_t> FingerprintInscreen::getPositionX() {
return FOD_SENSOR_X;
}
Return<int32_t> FingerprintInscreen::getPositionY() {
return FOD_SENSOR_Y;
}
Return<int32_t> FingerprintInscreen::getSize() {
return FOD_SENSOR_SIZE;
}
Return<void> FingerprintInscreen::onStartEnroll() {
return Void();
}
Return<void> FingerprintInscreen::onFinishEnroll() {
return Void();
}
Return<void> FingerprintInscreen::onPress() {
set(FOD_HBM_PATH, FOD_HBM_ON);
xiaomiFingerprintService->extCmd(COMMAND_NIT, PARAM_NIT_FOD);
return Void();
}
Return<void> FingerprintInscreen::onRelease() {
set(FOD_HBM_PATH, FOD_HBM_OFF);
xiaomiFingerprintService->extCmd(COMMAND_NIT, PARAM_NIT_NONE);
return Void();
}
Return<void> FingerprintInscreen::onShowFODView() {
set(FOD_STATUS_PATH, FOD_STATUS_ON);
return Void();
}
Return<void> FingerprintInscreen::onHideFODView() {
set(FOD_STATUS_PATH, FOD_STATUS_OFF);
return Void();
}
Return<bool> FingerprintInscreen::handleAcquired(int32_t acquiredInfo, int32_t vendorCode) {
LOG(ERROR) << "acquiredInfo: " << acquiredInfo << ", vendorCode: " << vendorCode << "\n";
return false;
}
Return<bool> FingerprintInscreen::handleError(int32_t error, int32_t vendorCode) {
LOG(ERROR) << "error: " << error << ", vendorCode: " << vendorCode << "\n";
return false;
}
Return<void> FingerprintInscreen::setLongPressEnabled(bool) {
return Void();
}
Return<int32_t> FingerprintInscreen::getDimAmount(int32_t /* brightness */) {
int realBrightness = get(BRIGHTNESS_PATH, 0);
float alpha;
if (realBrightness > 500) {
alpha = 1.0 - pow(realBrightness / 2047.0 * 430.0 / 600.0, 0.455);
} else {
alpha = 1.0 - pow(realBrightness / 1680.0, 0.455);
}
return 255 * alpha;
}
Return<bool> FingerprintInscreen::shouldBoostBrightness() {
return false;
}
Return<void> FingerprintInscreen::setCallback(const sp<IFingerprintInscreenCallback>& /* callback */) {
return Void();
}
} // namespace implementation
} // namespace V1_0
} // namespace inscreen
} // namespace fingerprint
} // namespace biometrics
} // namespace lineage
} // namespace vendor