507 lines
18 KiB
C++
507 lines
18 KiB
C++
/*
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* Copyright (C) 2017 The Android Open Source Project
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* Copyright (C) 2018-2021 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.biometrics.fingerprint@2.3-service.xiaomi_sm6150"
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#define LOG_VERBOSE "android.hardware.biometrics.fingerprint@2.3-service.xiaomi_sm6150"
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#include <log/log.h>
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#include <poll.h>
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#include <thread>
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#include "BiometricsFingerprint.h"
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#define COMMAND_NIT 10
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#define PARAM_NIT_FOD 1
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#define PARAM_NIT_NONE 0
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#define FOD_STATUS_ON 1
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#define FOD_STATUS_OFF -1
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#define TOUCH_DEV_PATH "/dev/xiaomi-touch"
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#define Touch_Fod_Enable 10
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#define TOUCH_MAGIC 0x5400
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#define TOUCH_IOC_SETMODE TOUCH_MAGIC + 0
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#define FOD_UI_PATH "/sys/devices/platform/soc/soc:qcom,dsi-display/fod_ui"
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#ifdef ENABLE_UDFPS
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namespace {
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static bool readBool(int fd) {
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char c;
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int rc;
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rc = lseek(fd, 0, SEEK_SET);
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if (rc) {
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ALOGE("failed to seek fd, err: %d", rc);
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return false;
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}
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rc = read(fd, &c, sizeof(char));
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if (rc != 1) {
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ALOGE("failed to read bool from fd, err: %d", rc);
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return false;
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}
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return c != '0';
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}
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} // anonymous namespace
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#endif
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namespace android {
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namespace hardware {
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namespace biometrics {
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namespace fingerprint {
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namespace V2_3 {
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namespace implementation {
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// Supported fingerprint HAL version
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static const uint16_t kVersion = HARDWARE_MODULE_API_VERSION(2, 1);
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BiometricsFingerprint* BiometricsFingerprint::sInstance = nullptr;
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BiometricsFingerprint::BiometricsFingerprint() : mClientCallback(nullptr), mDevice(nullptr) {
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sInstance = this; // keep track of the most recent instance
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mDevice = openHal();
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if (!mDevice) {
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ALOGE("Can't open HAL module");
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}
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#ifdef ENABLE_UDFPS
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touch_fd_ = android::base::unique_fd(open(TOUCH_DEV_PATH, O_RDWR));
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std::thread([this]() {
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int fd = open(FOD_UI_PATH, O_RDONLY);
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if (fd < 0) {
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ALOGE("failed to open fd, err: %d", fd);
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return;
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}
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struct pollfd fodUiPoll = {
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.fd = fd,
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.events = POLLERR | POLLPRI,
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.revents = 0,
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};
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while (true) {
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int rc = poll(&fodUiPoll, 1, -1);
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if (rc < 0) {
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ALOGE("failed to poll fd, err: %d", rc);
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continue;
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}
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mDevice->extCmd(mDevice, COMMAND_NIT, readBool(fd) ? PARAM_NIT_FOD : PARAM_NIT_NONE);
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}
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}).detach();
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#endif
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}
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BiometricsFingerprint::~BiometricsFingerprint() {
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ALOGV("~BiometricsFingerprint()");
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if (mDevice == nullptr) {
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ALOGE("No valid device");
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return;
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}
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int err;
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if (0 != (err = mDevice->common.close(reinterpret_cast<hw_device_t*>(mDevice)))) {
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ALOGE("Can't close fingerprint module, error: %d", err);
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return;
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}
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mDevice = nullptr;
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}
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Return<RequestStatus> BiometricsFingerprint::ErrorFilter(int32_t error) {
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switch (error) {
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case 0:
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return RequestStatus::SYS_OK;
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case -2:
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return RequestStatus::SYS_ENOENT;
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case -4:
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return RequestStatus::SYS_EINTR;
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case -5:
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return RequestStatus::SYS_EIO;
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case -11:
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return RequestStatus::SYS_EAGAIN;
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case -12:
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return RequestStatus::SYS_ENOMEM;
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case -13:
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return RequestStatus::SYS_EACCES;
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case -14:
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return RequestStatus::SYS_EFAULT;
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case -16:
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return RequestStatus::SYS_EBUSY;
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case -22:
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return RequestStatus::SYS_EINVAL;
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case -28:
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return RequestStatus::SYS_ENOSPC;
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case -110:
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return RequestStatus::SYS_ETIMEDOUT;
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default:
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ALOGE("An unknown error returned from fingerprint vendor library: %d", error);
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return RequestStatus::SYS_UNKNOWN;
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}
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}
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// Translate from errors returned by traditional HAL (see fingerprint.h) to
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// HIDL-compliant FingerprintError.
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FingerprintError BiometricsFingerprint::VendorErrorFilter(int32_t error, int32_t* vendorCode) {
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*vendorCode = 0;
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switch (error) {
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case FINGERPRINT_ERROR_HW_UNAVAILABLE:
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return FingerprintError::ERROR_HW_UNAVAILABLE;
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case FINGERPRINT_ERROR_UNABLE_TO_PROCESS:
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return FingerprintError::ERROR_UNABLE_TO_PROCESS;
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case FINGERPRINT_ERROR_TIMEOUT:
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return FingerprintError::ERROR_TIMEOUT;
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case FINGERPRINT_ERROR_NO_SPACE:
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return FingerprintError::ERROR_NO_SPACE;
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case FINGERPRINT_ERROR_CANCELED:
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return FingerprintError::ERROR_CANCELED;
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case FINGERPRINT_ERROR_UNABLE_TO_REMOVE:
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return FingerprintError::ERROR_UNABLE_TO_REMOVE;
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case FINGERPRINT_ERROR_LOCKOUT:
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return FingerprintError::ERROR_LOCKOUT;
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default:
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if (error >= FINGERPRINT_ERROR_VENDOR_BASE) {
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// vendor specific code.
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*vendorCode = error - FINGERPRINT_ERROR_VENDOR_BASE;
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return FingerprintError::ERROR_VENDOR;
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}
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}
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ALOGE("Unknown error from fingerprint vendor library: %d", error);
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return FingerprintError::ERROR_UNABLE_TO_PROCESS;
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}
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// Translate acquired messages returned by traditional HAL (see fingerprint.h)
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// to HIDL-compliant FingerprintAcquiredInfo.
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FingerprintAcquiredInfo BiometricsFingerprint::VendorAcquiredFilter(int32_t info,
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int32_t* vendorCode) {
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*vendorCode = 0;
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switch (info) {
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case FINGERPRINT_ACQUIRED_GOOD:
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return FingerprintAcquiredInfo::ACQUIRED_GOOD;
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case FINGERPRINT_ACQUIRED_PARTIAL:
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return FingerprintAcquiredInfo::ACQUIRED_PARTIAL;
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case FINGERPRINT_ACQUIRED_INSUFFICIENT:
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return FingerprintAcquiredInfo::ACQUIRED_INSUFFICIENT;
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case FINGERPRINT_ACQUIRED_IMAGER_DIRTY:
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return FingerprintAcquiredInfo::ACQUIRED_IMAGER_DIRTY;
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case FINGERPRINT_ACQUIRED_TOO_SLOW:
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return FingerprintAcquiredInfo::ACQUIRED_TOO_SLOW;
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case FINGERPRINT_ACQUIRED_TOO_FAST:
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return FingerprintAcquiredInfo::ACQUIRED_TOO_FAST;
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default:
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if (info >= FINGERPRINT_ACQUIRED_VENDOR_BASE) {
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// vendor specific code.
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*vendorCode = info - FINGERPRINT_ACQUIRED_VENDOR_BASE;
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return FingerprintAcquiredInfo::ACQUIRED_VENDOR;
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}
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}
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ALOGE("Unknown acquiredmsg from fingerprint vendor library: %d", info);
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return FingerprintAcquiredInfo::ACQUIRED_INSUFFICIENT;
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}
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Return<uint64_t> BiometricsFingerprint::setNotify(
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const sp<IBiometricsFingerprintClientCallback>& clientCallback) {
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std::lock_guard<std::mutex> lock(mClientCallbackMutex);
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mClientCallback = clientCallback;
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// This is here because HAL 2.1 doesn't have a way to propagate a
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// unique token for its driver. Subsequent versions should send a unique
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// token for each call to setNotify(). This is fine as long as there's only
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// one fingerprint device on the platform.
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return reinterpret_cast<uint64_t>(mDevice);
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}
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Return<uint64_t> BiometricsFingerprint::preEnroll() {
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return mDevice->pre_enroll(mDevice);
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}
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Return<RequestStatus> BiometricsFingerprint::enroll(const hidl_array<uint8_t, 69>& hat,
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uint32_t gid, uint32_t timeoutSec) {
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const hw_auth_token_t* authToken = reinterpret_cast<const hw_auth_token_t*>(hat.data());
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return ErrorFilter(mDevice->enroll(mDevice, authToken, gid, timeoutSec));
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}
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Return<RequestStatus> BiometricsFingerprint::postEnroll() {
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return ErrorFilter(mDevice->post_enroll(mDevice));
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}
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Return<uint64_t> BiometricsFingerprint::getAuthenticatorId() {
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return mDevice->get_authenticator_id(mDevice);
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}
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Return<RequestStatus> BiometricsFingerprint::cancel() {
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return ErrorFilter(mDevice->cancel(mDevice));
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}
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Return<RequestStatus> BiometricsFingerprint::enumerate() {
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return ErrorFilter(mDevice->enumerate(mDevice));
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}
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Return<RequestStatus> BiometricsFingerprint::remove(uint32_t gid, uint32_t fid) {
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return ErrorFilter(mDevice->remove(mDevice, gid, fid));
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}
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Return<RequestStatus> BiometricsFingerprint::setActiveGroup(uint32_t gid,
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const hidl_string& storePath) {
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if (storePath.size() >= PATH_MAX || storePath.size() <= 0) {
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ALOGE("Bad path length: %zd", storePath.size());
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return RequestStatus::SYS_EINVAL;
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}
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if (access(storePath.c_str(), W_OK)) {
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return RequestStatus::SYS_EINVAL;
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}
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return ErrorFilter(mDevice->set_active_group(mDevice, gid, storePath.c_str()));
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}
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Return<RequestStatus> BiometricsFingerprint::authenticate(uint64_t operationId, uint32_t gid) {
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return ErrorFilter(mDevice->authenticate(mDevice, operationId, gid));
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}
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IBiometricsFingerprint* BiometricsFingerprint::getInstance() {
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if (!sInstance) {
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sInstance = new BiometricsFingerprint();
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}
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return sInstance;
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}
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fingerprint_device_t* getDeviceForVendor(const char* class_name) {
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int err;
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const hw_module_t* hw_mdl = nullptr;
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ALOGD("Opening fingerprint hal library...");
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if (0 != (err = hw_get_module_by_class(FINGERPRINT_HARDWARE_MODULE_ID, class_name, &hw_mdl))) {
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ALOGE("Can't open fingerprint HW Module, class: %s, error: %d", class_name, err);
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return nullptr;
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}
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if (hw_mdl == nullptr) {
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ALOGE("No valid fingerprint module, class: %s", class_name);
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return nullptr;
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}
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fingerprint_module_t const* module = reinterpret_cast<const fingerprint_module_t*>(hw_mdl);
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if (module->common.methods->open == nullptr) {
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ALOGE("No valid open method, class: %s", class_name);
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return nullptr;
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}
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hw_device_t* device = nullptr;
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if (0 != (err = module->common.methods->open(hw_mdl, nullptr, &device))) {
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ALOGE("Can't open fingerprint methods, class: %s, error: %d", class_name, err);
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return nullptr;
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}
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if (kVersion != device->version) {
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// enforce version on new devices because of HIDL@2.1 translation layer
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ALOGE("Wrong fp version. Expected %d, got %d", kVersion, device->version);
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return nullptr;
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}
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fingerprint_device_t* fp_device = reinterpret_cast<fingerprint_device_t*>(device);
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ALOGI("Loaded fingerprint module, class: %s", class_name);
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return fp_device;
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}
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fingerprint_device_t* getFingerprintDevice() {
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fingerprint_device_t* fp_device;
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std::string vendor_modules[] = {"fpc", "fpc_fod", "goodix", "goodix_fod"};
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for (const auto& vendor : vendor_modules) {
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if ((fp_device = getDeviceForVendor(vendor.c_str())) == nullptr) {
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ALOGE("Failed to load %s fingerprint module", vendor.c_str());
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continue;
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}
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return fp_device;
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}
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return nullptr;
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}
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fingerprint_device_t* BiometricsFingerprint::openHal() {
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int err;
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fingerprint_device_t* fp_device;
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fp_device = getFingerprintDevice();
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if (fp_device == nullptr) {
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return nullptr;
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}
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if (0 != (err = fp_device->set_notify(fp_device, BiometricsFingerprint::notify))) {
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ALOGE("Can't register fingerprint module callback, error: %d", err);
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return nullptr;
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}
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return fp_device;
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}
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void BiometricsFingerprint::notify(const fingerprint_msg_t* msg) {
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BiometricsFingerprint* thisPtr =
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static_cast<BiometricsFingerprint*>(BiometricsFingerprint::getInstance());
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std::lock_guard<std::mutex> lock(thisPtr->mClientCallbackMutex);
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if (thisPtr == nullptr || thisPtr->mClientCallback == nullptr) {
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ALOGE("Receiving callbacks before the client callback is registered.");
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return;
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}
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const uint64_t devId = reinterpret_cast<uint64_t>(thisPtr->mDevice);
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switch (msg->type) {
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case FINGERPRINT_ERROR: {
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int32_t vendorCode = 0;
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FingerprintError result = VendorErrorFilter(msg->data.error, &vendorCode);
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ALOGD("onError(%d)", result);
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if (!thisPtr->mClientCallback->onError(devId, result, vendorCode).isOk()) {
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ALOGE("failed to invoke fingerprint onError callback");
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}
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} break;
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case FINGERPRINT_ACQUIRED: {
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int32_t vendorCode = 0;
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FingerprintAcquiredInfo result =
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VendorAcquiredFilter(msg->data.acquired.acquired_info, &vendorCode);
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ALOGD("onAcquired(%d)", result);
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if (!thisPtr->mClientCallback->onAcquired(devId, result, vendorCode).isOk()) {
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ALOGE("failed to invoke fingerprint onAcquired callback");
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}
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} break;
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case FINGERPRINT_TEMPLATE_ENROLLING:
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ALOGD("onEnrollResult(fid=%d, gid=%d, rem=%d)", msg->data.enroll.finger.fid,
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msg->data.enroll.finger.gid, msg->data.enroll.samples_remaining);
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if (!thisPtr->mClientCallback
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->onEnrollResult(devId, msg->data.enroll.finger.fid,
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msg->data.enroll.finger.gid,
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msg->data.enroll.samples_remaining)
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.isOk()) {
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ALOGE("failed to invoke fingerprint onEnrollResult callback");
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}
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break;
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case FINGERPRINT_TEMPLATE_REMOVED:
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ALOGD("onRemove(fid=%d, gid=%d, rem=%d)", msg->data.removed.finger.fid,
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msg->data.removed.finger.gid, msg->data.removed.remaining_templates);
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if (!thisPtr->mClientCallback
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->onRemoved(devId, msg->data.removed.finger.fid,
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msg->data.removed.finger.gid,
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msg->data.removed.remaining_templates)
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.isOk()) {
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ALOGE("failed to invoke fingerprint onRemoved callback");
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}
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break;
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case FINGERPRINT_AUTHENTICATED:
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if (msg->data.authenticated.finger.fid != 0) {
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ALOGD("onAuthenticated(fid=%d, gid=%d)", msg->data.authenticated.finger.fid,
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msg->data.authenticated.finger.gid);
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const uint8_t* hat = reinterpret_cast<const uint8_t*>(&msg->data.authenticated.hat);
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const hidl_vec<uint8_t> token(
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std::vector<uint8_t>(hat, hat + sizeof(msg->data.authenticated.hat)));
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if (!thisPtr->mClientCallback
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->onAuthenticated(devId, msg->data.authenticated.finger.fid,
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msg->data.authenticated.finger.gid, token)
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.isOk()) {
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ALOGE("failed to invoke fingerprint onAuthenticated callback");
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}
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} else {
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// Not a recognized fingerprint
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if (!thisPtr->mClientCallback
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->onAuthenticated(devId, msg->data.authenticated.finger.fid,
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msg->data.authenticated.finger.gid,
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hidl_vec<uint8_t>())
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.isOk()) {
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ALOGE("failed to invoke fingerprint onAuthenticated callback");
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}
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}
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break;
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case FINGERPRINT_TEMPLATE_ENUMERATING:
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ALOGD("onEnumerate(fid=%d, gid=%d, rem=%d)", msg->data.enumerated.finger.fid,
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msg->data.enumerated.finger.gid, msg->data.enumerated.remaining_templates);
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if (!thisPtr->mClientCallback
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->onEnumerate(devId, msg->data.enumerated.finger.fid,
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msg->data.enumerated.finger.gid,
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msg->data.enumerated.remaining_templates)
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.isOk()) {
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ALOGE("failed to invoke fingerprint onEnumerate callback");
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}
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break;
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}
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}
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/**
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* Returns whether the fingerprint sensor is an under-display fingerprint
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* sensor.
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* @param sensorId the unique sensor ID for which the operation should be
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* performed.
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* @return isUdfps indicating whether the specified sensor is an
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* under-display fingerprint sensor.
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*/
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Return<bool> BiometricsFingerprint::isUdfps(uint32_t /* sensorId */) {
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#ifdef ENABLE_UDFPS
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return true;
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#else
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return false;
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#endif
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}
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/**
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* Notifies about a touch occurring within the under-display fingerprint
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* sensor area.
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*
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* It it assumed that the device can only have one active under-display
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* fingerprint sensor at a time.
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*
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* If multiple fingers are detected within the sensor area, only the
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* chronologically first event will be reported.
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*
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* @param x The screen x-coordinate of the center of the touch contact area, in
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* display pixels.
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* @param y The screen y-coordinate of the center of the touch contact area, in
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* display pixels.
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* @param minor The length of the minor axis of an ellipse that describes the
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* touch area, in display pixels.
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* @param major The length of the major axis of an ellipse that describes the
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* touch area, in display pixels.
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*/
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Return<void> BiometricsFingerprint::onFingerDown(uint32_t /* x */, uint32_t /* y */,
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float /* minor */, float /* major */) {
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#ifdef ENABLE_UDFPS
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int arg[2] = {Touch_Fod_Enable, FOD_STATUS_ON};
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ioctl(touch_fd_.get(), TOUCH_IOC_SETMODE, &arg);
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#endif
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|
|
|
return Void();
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|
}
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|
/**
|
|
* Notifies about a finger leaving the under-display fingerprint sensor area.
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|
*
|
|
* It it assumed that the device can only have one active under-display
|
|
* fingerprint sensor at a time.
|
|
*
|
|
* If multiple fingers have left the sensor area, only the finger which
|
|
* previously caused a "finger down" event will be reported.
|
|
*/
|
|
Return<void> BiometricsFingerprint::onFingerUp() {
|
|
#ifdef ENABLE_UDFPS
|
|
int arg[2] = {Touch_Fod_Enable, FOD_STATUS_OFF};
|
|
ioctl(touch_fd_.get(), TOUCH_IOC_SETMODE, &arg);
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|
#endif
|
|
|
|
return Void();
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|
}
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|
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} // namespace implementation
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|
} // namespace V2_3
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|
} // namespace fingerprint
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|
} // namespace biometrics
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|
} // namespace hardware
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|
} // namespace android
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