veux: Merge common tree to veux

- Ref:
  https://github.com/xiaomi-sm6375-devs/android_device_xiaomi_sm6375-common

Signed-off-by: kleidione <kleidione@gmail.com>

7 files changed, 803 insertions, 0 deletions

diff --git a/biometrics/Android.bp b/biometrics/Android.bp
new file mode 100644
index 0000000..f5f26c7
--- /dev/null
+++ b/biometrics/Android.bp
@@ -0,0 +1,21 @@
+cc_binary {
+    name: "android.hardware.biometrics.fingerprint@2.1-service.xiaomi_holi",
+    defaults: ["hidl_defaults"],
+    relative_install_path: "hw",
+    init_rc: ["android.hardware.biometrics.fingerprint@2.1-service.xiaomi_holi.rc"],
+    vintf_fragments: ["android.hardware.biometrics.fingerprint@2.1-service.xiaomi_holi.xml"],
+    srcs: [
+        "BiometricsFingerprint.cpp",
+        "service.cpp",
+    ],
+    shared_libs: [
+        "libcutils",
+        "liblog",
+        "libhidlbase",
+        "libhardware",
+        "libutils",
+        "android.hardware.biometrics.fingerprint@2.1",
+        "//hardware/xiaomi:vendor.xiaomi.hardware.fingerprintextension@1.0",
+    ],
+    vendor: true,
+}
diff --git a/biometrics/BiometricsFingerprint.cpp b/biometrics/BiometricsFingerprint.cpp
new file mode 100644
index 0000000..668c220
--- /dev/null
+++ b/biometrics/BiometricsFingerprint.cpp
@@ -0,0 +1,383 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ * Copyright (C) 2021 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 "android.hardware.biometrics.fingerprint@2.1-service.xiaomi_holi"
+#define LOG_VERBOSE "android.hardware.biometrics.fingerprint@2.1-service.xiaomi_holi"
+
+#include <hardware/hw_auth_token.h>
+
+#include "xiaomi_fingerprint.h"
+#include "BiometricsFingerprint.h"
+
+#include <cutils/properties.h>
+#include <inttypes.h>
+#include <unistd.h>
+
+namespace android {
+namespace hardware {
+namespace biometrics {
+namespace fingerprint {
+namespace V2_1 {
+namespace implementation {
+
+// Supported fingerprint HAL version
+static const uint16_t kVersion = HARDWARE_MODULE_API_VERSION(2, 1);
+
+// List of fingerprint HALs
+static const char *kHALClasses[] = {
+    "fpc",
+    "goodix",
+    "silead",
+};
+
+using RequestStatus =
+        android::hardware::biometrics::fingerprint::V2_1::RequestStatus;
+
+BiometricsFingerprint *BiometricsFingerprint::sInstance = nullptr;
+
+BiometricsFingerprint::BiometricsFingerprint() : mClientCallback(nullptr), mDevice(nullptr) {
+    sInstance = this; // keep track of the most recent instance
+    for (const auto& class_name : kHALClasses) {
+        mDevice = openHal(class_name);
+        if (!mDevice) {
+            ALOGE("Can't open HAL module, class %s", class_name);
+        } else {
+            ALOGI("Opened fingerprint HAL, class %s", class_name);
+            property_set("persist.vendor.sys.fp.vendor", class_name); // fix AliPay TouchID
+            break;
+        }
+    }
+}
+
+BiometricsFingerprint::~BiometricsFingerprint() {
+    ALOGV("~BiometricsFingerprint()");
+    if (mDevice == nullptr) {
+        ALOGE("No valid device");
+        return;
+    }
+    int err;
+    if (0 != (err = mDevice->common.close(
+            reinterpret_cast<hw_device_t*>(mDevice)))) {
+        ALOGE("Can't close fingerprint module, error: %d", err);
+        return;
+    }
+    mDevice = nullptr;
+}
+
+Return<RequestStatus> BiometricsFingerprint::ErrorFilter(int32_t error) {
+    switch(error) {
+        case 0: return RequestStatus::SYS_OK;
+        case -2: return RequestStatus::SYS_ENOENT;
+        case -4: return RequestStatus::SYS_EINTR;
+        case -5: return RequestStatus::SYS_EIO;
+        case -11: return RequestStatus::SYS_EAGAIN;
+        case -12: return RequestStatus::SYS_ENOMEM;
+        case -13: return RequestStatus::SYS_EACCES;
+        case -14: return RequestStatus::SYS_EFAULT;
+        case -16: return RequestStatus::SYS_EBUSY;
+        case -22: return RequestStatus::SYS_EINVAL;
+        case -28: return RequestStatus::SYS_ENOSPC;
+        case -110: return RequestStatus::SYS_ETIMEDOUT;
+        default:
+            ALOGE("An unknown error returned from fingerprint vendor library: %d", error);
+            return RequestStatus::SYS_UNKNOWN;
+    }
+}
+
+// Translate from errors returned by traditional HAL (see fingerprint.h) to
+// HIDL-compliant FingerprintError.
+FingerprintError BiometricsFingerprint::VendorErrorFilter(int32_t error,
+            int32_t* vendorCode) {
+    *vendorCode = 0;
+    switch(error) {
+        case FINGERPRINT_ERROR_HW_UNAVAILABLE:
+            return FingerprintError::ERROR_HW_UNAVAILABLE;
+        case FINGERPRINT_ERROR_UNABLE_TO_PROCESS:
+            return FingerprintError::ERROR_UNABLE_TO_PROCESS;
+        case FINGERPRINT_ERROR_TIMEOUT:
+            return FingerprintError::ERROR_TIMEOUT;
+        case FINGERPRINT_ERROR_NO_SPACE:
+            return FingerprintError::ERROR_NO_SPACE;
+        case FINGERPRINT_ERROR_CANCELED:
+            return FingerprintError::ERROR_CANCELED;
+        case FINGERPRINT_ERROR_UNABLE_TO_REMOVE:
+            return FingerprintError::ERROR_UNABLE_TO_REMOVE;
+        case FINGERPRINT_ERROR_LOCKOUT:
+            return FingerprintError::ERROR_LOCKOUT;
+        default:
+            if (error >= FINGERPRINT_ERROR_VENDOR_BASE) {
+                // vendor specific code.
+                *vendorCode = error - FINGERPRINT_ERROR_VENDOR_BASE;
+                return FingerprintError::ERROR_VENDOR;
+            }
+    }
+    ALOGE("Unknown error from fingerprint vendor library: %d", error);
+    return FingerprintError::ERROR_UNABLE_TO_PROCESS;
+}
+
+// Translate acquired messages returned by traditional HAL (see fingerprint.h)
+// to HIDL-compliant FingerprintAcquiredInfo.
+FingerprintAcquiredInfo BiometricsFingerprint::VendorAcquiredFilter(
+        int32_t info, int32_t* vendorCode) {
+    *vendorCode = 0;
+    switch(info) {
+        case FINGERPRINT_ACQUIRED_GOOD:
+            return FingerprintAcquiredInfo::ACQUIRED_GOOD;
+        case FINGERPRINT_ACQUIRED_PARTIAL:
+            return FingerprintAcquiredInfo::ACQUIRED_PARTIAL;
+        case FINGERPRINT_ACQUIRED_INSUFFICIENT:
+            return FingerprintAcquiredInfo::ACQUIRED_INSUFFICIENT;
+        case FINGERPRINT_ACQUIRED_IMAGER_DIRTY:
+            return FingerprintAcquiredInfo::ACQUIRED_IMAGER_DIRTY;
+        case FINGERPRINT_ACQUIRED_TOO_SLOW:
+            return FingerprintAcquiredInfo::ACQUIRED_TOO_SLOW;
+        case FINGERPRINT_ACQUIRED_TOO_FAST:
+            return FingerprintAcquiredInfo::ACQUIRED_TOO_FAST;
+        default:
+            if (info >= FINGERPRINT_ACQUIRED_VENDOR_BASE) {
+                // vendor specific code.
+                *vendorCode = info - FINGERPRINT_ACQUIRED_VENDOR_BASE;
+                return FingerprintAcquiredInfo::ACQUIRED_VENDOR;
+            }
+    }
+    ALOGE("Unknown acquiredmsg from fingerprint vendor library: %d", info);
+    return FingerprintAcquiredInfo::ACQUIRED_INSUFFICIENT;
+}
+
+Return<uint64_t> BiometricsFingerprint::setNotify(
+        const sp<IBiometricsFingerprintClientCallback>& clientCallback) {
+    std::lock_guard<std::mutex> lock(mClientCallbackMutex);
+    mClientCallback = clientCallback;
+    // This is here because HAL 2.1 doesn't have a way to propagate a
+    // unique token for its driver. Subsequent versions should send a unique
+    // token for each call to setNotify(). This is fine as long as there's only
+    // one fingerprint device on the platform.
+    return reinterpret_cast<uint64_t>(mDevice);
+}
+
+Return<uint64_t> BiometricsFingerprint::preEnroll()  {
+    return mDevice->pre_enroll(mDevice);
+}
+
+Return<RequestStatus> BiometricsFingerprint::enroll(const hidl_array<uint8_t, 69>& hat,
+        uint32_t gid, uint32_t timeoutSec) {
+    const hw_auth_token_t* authToken =
+        reinterpret_cast<const hw_auth_token_t*>(hat.data());
+    return ErrorFilter(mDevice->enroll(mDevice, authToken, gid, timeoutSec));
+}
+
+Return<RequestStatus> BiometricsFingerprint::postEnroll() {
+    return ErrorFilter(mDevice->post_enroll(mDevice));
+}
+
+Return<uint64_t> BiometricsFingerprint::getAuthenticatorId() {
+    return mDevice->get_authenticator_id(mDevice);
+}
+
+Return<RequestStatus> BiometricsFingerprint::cancel() {
+    return ErrorFilter(mDevice->cancel(mDevice));
+}
+
+Return<RequestStatus> BiometricsFingerprint::enumerate()  {
+    return ErrorFilter(mDevice->enumerate(mDevice));
+}
+
+Return<RequestStatus> BiometricsFingerprint::remove(uint32_t gid, uint32_t fid) {
+    return ErrorFilter(mDevice->remove(mDevice, gid, fid));
+}
+
+Return<RequestStatus> BiometricsFingerprint::setActiveGroup(uint32_t gid,
+        const hidl_string& storePath) {
+    if (storePath.size() >= PATH_MAX || storePath.size() <= 0) {
+        ALOGE("Bad path length: %zd", storePath.size());
+        return RequestStatus::SYS_EINVAL;
+    }
+    if (access(storePath.c_str(), W_OK)) {
+        return RequestStatus::SYS_EINVAL;
+    }
+
+    return ErrorFilter(mDevice->set_active_group(mDevice, gid,
+                                                    storePath.c_str()));
+}
+
+Return<RequestStatus> BiometricsFingerprint::authenticate(uint64_t operationId,
+        uint32_t gid) {
+    return ErrorFilter(mDevice->authenticate(mDevice, operationId, gid));
+}
+
+IBiometricsFingerprint* BiometricsFingerprint::getInstance() {
+    if (!sInstance) {
+      sInstance = new BiometricsFingerprint();
+    }
+    return sInstance;
+}
+
+IXiaomiFingerprint* BiometricsFingerprint::getXiaomiInstance() {
+    if (!sInstance) {
+      sInstance = new BiometricsFingerprint();
+    }
+    return sInstance;
+}
+
+xiaomi_fingerprint_device_t* BiometricsFingerprint::openHal(const char *class_name) {
+    int err;
+    const hw_module_t *hw_mdl = nullptr;
+    ALOGD("Opening fingerprint hal library...");
+    if (0 != (err = hw_get_module_by_class(FINGERPRINT_HARDWARE_MODULE_ID, class_name, &hw_mdl))) {
+        ALOGE("Can't open fingerprint HW Module, class %s, error: %d", class_name, err);
+        return nullptr;
+    }
+
+    if (hw_mdl == nullptr) {
+        ALOGE("No valid fingerprint module, class %s", class_name);
+        return nullptr;
+    }
+
+    fingerprint_module_t const *module =
+        reinterpret_cast<const fingerprint_module_t*>(hw_mdl);
+    if (module->common.methods->open == nullptr) {
+        ALOGE("No valid open method, class %s", class_name);
+        return nullptr;
+    }
+
+    hw_device_t *device = nullptr;
+
+    if (0 != (err = module->common.methods->open(hw_mdl, nullptr, &device))) {
+        ALOGE("Can't open fingerprint methods, class %s, error: %d", class_name, err);
+        return nullptr;
+    }
+
+    if (kVersion != device->version) {
+        // enforce version on new devices because of HIDL@2.1 translation layer
+        ALOGE("Wrong fp version, class %s. Expected %d, got %d", class_name, kVersion, device->version);
+        return nullptr;
+    }
+
+    xiaomi_fingerprint_device_t* fp_device =
+        reinterpret_cast<xiaomi_fingerprint_device_t*>(device);
+
+    if (0 != (err =
+            fp_device->set_notify(fp_device, BiometricsFingerprint::notify))) {
+        ALOGE("Can't register fingerprint module callback, class %s, error: %d", class_name, err);
+        return nullptr;
+    }
+
+    return fp_device;
+}
+
+void BiometricsFingerprint::notify(const fingerprint_msg_t *msg) {
+    BiometricsFingerprint* thisPtr = static_cast<BiometricsFingerprint*>(
+            BiometricsFingerprint::getInstance());
+    std::lock_guard<std::mutex> lock(thisPtr->mClientCallbackMutex);
+    if (thisPtr == nullptr || thisPtr->mClientCallback == nullptr) {
+        ALOGE("Receiving callbacks before the client callback is registered.");
+        return;
+    }
+    const uint64_t devId = reinterpret_cast<uint64_t>(thisPtr->mDevice);
+    switch (msg->type) {
+        case FINGERPRINT_ERROR: {
+                int32_t vendorCode = 0;
+                FingerprintError result = VendorErrorFilter(msg->data.error, &vendorCode);
+                ALOGD("onError(%d)", result);
+                if (!thisPtr->mClientCallback->onError(devId, result, vendorCode).isOk()) {
+                    ALOGE("failed to invoke fingerprint onError callback");
+                }
+            }
+            break;
+        case FINGERPRINT_ACQUIRED: {
+                int32_t vendorCode = 0;
+                FingerprintAcquiredInfo result =
+                    VendorAcquiredFilter(msg->data.acquired.acquired_info, &vendorCode);
+                ALOGD("onAcquired(%d)", result);
+                if (!thisPtr->mClientCallback->onAcquired(devId, result, vendorCode).isOk()) {
+                    ALOGE("failed to invoke fingerprint onAcquired callback");
+                }
+            }
+            break;
+        case FINGERPRINT_TEMPLATE_ENROLLING:
+            ALOGD("onEnrollResult(fid=%d, gid=%d, rem=%d)",
+                msg->data.enroll.finger.fid,
+                msg->data.enroll.finger.gid,
+                msg->data.enroll.samples_remaining);
+            if (!thisPtr->mClientCallback->onEnrollResult(devId,
+                    msg->data.enroll.finger.fid,
+                    msg->data.enroll.finger.gid,
+                    msg->data.enroll.samples_remaining).isOk()) {
+                ALOGE("failed to invoke fingerprint onEnrollResult callback");
+            }
+            break;
+        case FINGERPRINT_TEMPLATE_REMOVED:
+            ALOGD("onRemove(fid=%d, gid=%d, rem=%d)",
+                msg->data.removed.finger.fid,
+                msg->data.removed.finger.gid,
+                msg->data.removed.remaining_templates);
+            if (!thisPtr->mClientCallback->onRemoved(devId,
+                    msg->data.removed.finger.fid,
+                    msg->data.removed.finger.gid,
+                    msg->data.removed.remaining_templates).isOk()) {
+                ALOGE("failed to invoke fingerprint onRemoved callback");
+            }
+            break;
+        case FINGERPRINT_AUTHENTICATED:
+            if (msg->data.authenticated.finger.fid != 0) {
+                ALOGD("onAuthenticated(fid=%d, gid=%d)",
+                    msg->data.authenticated.finger.fid,
+                    msg->data.authenticated.finger.gid);
+                const uint8_t* hat =
+                    reinterpret_cast<const uint8_t *>(&msg->data.authenticated.hat);
+                const hidl_vec<uint8_t> token(
+                    std::vector<uint8_t>(hat, hat + sizeof(msg->data.authenticated.hat)));
+                if (!thisPtr->mClientCallback->onAuthenticated(devId,
+                        msg->data.authenticated.finger.fid,
+                        msg->data.authenticated.finger.gid,
+                        token).isOk()) {
+                    ALOGE("failed to invoke fingerprint onAuthenticated callback");
+                }
+            } else {
+                // Not a recognized fingerprint
+                if (!thisPtr->mClientCallback->onAuthenticated(devId,
+                        msg->data.authenticated.finger.fid,
+                        msg->data.authenticated.finger.gid,
+                        hidl_vec<uint8_t>()).isOk()) {
+                    ALOGE("failed to invoke fingerprint onAuthenticated callback");
+                }
+            }
+            break;
+        case FINGERPRINT_TEMPLATE_ENUMERATING:
+            ALOGD("onEnumerate(fid=%d, gid=%d, rem=%d)",
+                msg->data.enumerated.finger.fid,
+                msg->data.enumerated.finger.gid,
+                msg->data.enumerated.remaining_templates);
+            if (!thisPtr->mClientCallback->onEnumerate(devId,
+                    msg->data.enumerated.finger.fid,
+                    msg->data.enumerated.finger.gid,
+                    msg->data.enumerated.remaining_templates).isOk()) {
+                ALOGE("failed to invoke fingerprint onEnumerate callback");
+            }
+            break;
+    }
+}
+
+Return<int32_t> BiometricsFingerprint::extCmd(int32_t cmd, int32_t param) {
+    return mDevice->extCmd(mDevice, cmd, param);
+}
+
+} // namespace implementation
+}  // namespace V2_1
+}  // namespace fingerprint
+}  // namespace biometrics
+}  // namespace hardware
+}  // namespace android
diff --git a/biometrics/BiometricsFingerprint.h b/biometrics/BiometricsFingerprint.h
new file mode 100644
index 0000000..84e3080
--- /dev/null
+++ b/biometrics/BiometricsFingerprint.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ * Copyright (C) 2021 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.
+ */
+
+#ifndef ANDROID_HARDWARE_BIOMETRICS_FINGERPRINT_V2_1_BIOMETRICSFINGERPRINT_H
+#define ANDROID_HARDWARE_BIOMETRICS_FINGERPRINT_V2_1_BIOMETRICSFINGERPRINT_H
+
+#include <log/log.h>
+#include <android/log.h>
+#include "xiaomi_fingerprint.h"
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+#include <android/hardware/biometrics/fingerprint/2.1/IBiometricsFingerprint.h>
+#include <vendor/xiaomi/hardware/fingerprintextension/1.0/IXiaomiFingerprint.h>
+
+namespace android {
+namespace hardware {
+namespace biometrics {
+namespace fingerprint {
+namespace V2_1 {
+namespace implementation {
+
+using ::android::hardware::biometrics::fingerprint::V2_1::IBiometricsFingerprint;
+using ::android::hardware::biometrics::fingerprint::V2_1::IBiometricsFingerprintClientCallback;
+using ::android::hardware::biometrics::fingerprint::V2_1::RequestStatus;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::hidl_string;
+using ::android::sp;
+using ::vendor::xiaomi::hardware::fingerprintextension::V1_0::IXiaomiFingerprint;
+
+struct BiometricsFingerprint : public IBiometricsFingerprint, public IXiaomiFingerprint {
+public:
+    BiometricsFingerprint();
+    ~BiometricsFingerprint();
+
+    // Method to wrap legacy HAL with BiometricsFingerprint class
+    static IBiometricsFingerprint* getInstance();
+    static IXiaomiFingerprint* getXiaomiInstance();
+
+    // Methods from ::android::hardware::biometrics::fingerprint::V2_1::IBiometricsFingerprint follow.
+    Return<uint64_t> setNotify(const sp<IBiometricsFingerprintClientCallback>& clientCallback) override;
+    Return<uint64_t> preEnroll() override;
+    Return<RequestStatus> enroll(const hidl_array<uint8_t, 69>& hat, uint32_t gid, uint32_t timeoutSec) override;
+    Return<RequestStatus> postEnroll() override;
+    Return<uint64_t> getAuthenticatorId() override;
+    Return<RequestStatus> cancel() override;
+    Return<RequestStatus> enumerate() override;
+    Return<RequestStatus> remove(uint32_t gid, uint32_t fid) override;
+    Return<RequestStatus> setActiveGroup(uint32_t gid, const hidl_string& storePath) override;
+    Return<RequestStatus> authenticate(uint64_t operationId, uint32_t gid) override;
+
+    // Methods from ::vendor::xiaomi::hardware::fingerprintextension::V1_0::IXiaomiFingerprint follow.
+    Return<int32_t> extCmd(int32_t cmd, int32_t param) override;
+
+private:
+    static xiaomi_fingerprint_device_t* openHal(const char *class_name);
+    static void notify(const fingerprint_msg_t *msg); /* Static callback for legacy HAL implementation */
+    static Return<RequestStatus> ErrorFilter(int32_t error);
+    static FingerprintError VendorErrorFilter(int32_t error, int32_t* vendorCode);
+    static FingerprintAcquiredInfo VendorAcquiredFilter(int32_t error, int32_t* vendorCode);
+    static BiometricsFingerprint* sInstance;
+
+    std::mutex mClientCallbackMutex;
+    sp<IBiometricsFingerprintClientCallback> mClientCallback;
+    xiaomi_fingerprint_device_t *mDevice;
+};
+
+}  // namespace implementation
+}  // namespace V2_1
+}  // namespace fingerprint
+}  // namespace biometrics
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_BIOMETRICS_FINGERPRINT_V2_1_BIOMETRICSFINGERPRINT_H
diff --git a/biometrics/android.hardware.biometrics.fingerprint@2.1-service.xiaomi_holi.rc b/biometrics/android.hardware.biometrics.fingerprint@2.1-service.xiaomi_holi.rc
new file mode 100644
index 0000000..2fed25b
--- /dev/null
+++ b/biometrics/android.hardware.biometrics.fingerprint@2.1-service.xiaomi_holi.rc
@@ -0,0 +1,36 @@
+service vendor.fps_hal /vendor/bin/hw/android.hardware.biometrics.fingerprint@2.1-service.xiaomi_holi
+    # "class hal" causes a race condition on some devices due to files created
+    # in /data. As a workaround, postpone startup until later in boot once
+    # /data is mounted.
+    class late_start
+    user system
+    group system input uhid
+
+on boot
+    #for silead fingeprint
+    mkdir /data/vendor/silead 0777 system system
+    chown system system /dev/silead_fp
+    chmod 0660 /dev/silead_fp
+    chown system system /dev/spidev1.0
+    chmod 0660 /dev/spidev1.0
+    chown system system /dev/silead_stub
+    chmod 0660 /dev/silead_stub
+
+    #for goodix dump
+    mkdir /data/vendor/goodix 0777 system system
+    mkdir /data/vendor_de/0/goodix 0770 system system
+
+    #fpc fingerprint
+    chown system system  /sys/bus/platform/devices/soc:fpc1020/hw_reset
+    chown system system  /sys/bus/platform/devices/soc:fpc1020/irq
+    chown system system  /sys/bus/platform/devices/soc:fpc1020/wakeup_enable
+    chown system system  /sys/bus/platform/devices/soc:fpc1020/regulator_enable
+    chown system system  /sys/bus/platform/devices/soc:fpc1020/compatible_all
+    chown system system  /sys/bus/platform/devices/soc:fpc1020/fingerdown_wait
+
+    chmod 0644  /sys/bus/platform/devices/soc:fpc1020/hw_reset
+    chmod 0644  /sys/bus/platform/devices/soc:fpc1020/irq
+    chmod 0644  /sys/bus/platform/devices/soc:fpc1020/wakeup_enable
+    chmod 0644  /sys/bus/platform/devices/soc:fpc1020/regulator_enable
+    chmod 0644  /sys/bus/platform/devices/soc:fpc1020/compatible_all
+    chmod 0644 /sys/bus/platform/devices/soc:fpc1020/fingerdown_wait
diff --git a/biometrics/android.hardware.biometrics.fingerprint@2.1-service.xiaomi_holi.xml b/biometrics/android.hardware.biometrics.fingerprint@2.1-service.xiaomi_holi.xml
new file mode 100644
index 0000000..66a77d9
--- /dev/null
+++ b/biometrics/android.hardware.biometrics.fingerprint@2.1-service.xiaomi_holi.xml
@@ -0,0 +1,42 @@
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.biometrics.fingerprint</name>
+        <transport>hwbinder</transport>
+        <version>2.1</version>
+        <interface>
+            <name>IBiometricsFingerprint</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+    <hal format="hidl">
+        <name>vendor.goodix.hardware.biometrics.fingerprint</name>
+        <transport>hwbinder</transport>
+        <version>2.1</version>
+        <interface>
+            <name>IGoodixFingerprintDaemon</name>
+            <instance>default</instance>
+        </interface>
+        <interface>
+            <name>IGoodixFingerprintDaemonExt</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+    <hal format="hidl">
+        <name>vendor.xiaomi.hardware.fingerprintextension</name>
+        <transport>hwbinder</transport>
+        <version>1.0</version>
+        <interface>
+            <name>IXiaomiFingerprint</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+    <hal format="hidl">
+        <name>vendor.silead.hardware.fingerprintext</name>
+        <transport>hwbinder</transport>
+         <version>1.0</version>
+        <interface>
+            <name>ISileadFingerprint</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</manifest>
diff --git a/biometrics/service.cpp b/biometrics/service.cpp
new file mode 100644
index 0000000..0f6f70e
--- /dev/null
+++ b/biometrics/service.cpp
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2017 The Android Open Source 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 "android.hardware.biometrics.fingerprint@2.1-service.xiaomi_holi"
+
+#include <android/log.h>
+#include <hidl/HidlSupport.h>
+#include <hidl/HidlTransportSupport.h>
+#include <android/hardware/biometrics/fingerprint/2.1/IBiometricsFingerprint.h>
+#include <android/hardware/biometrics/fingerprint/2.1/types.h>
+#include <vendor/xiaomi/hardware/fingerprintextension/1.0/IXiaomiFingerprint.h>
+#include "BiometricsFingerprint.h"
+
+using android::hardware::biometrics::fingerprint::V2_1::IBiometricsFingerprint;
+using android::hardware::biometrics::fingerprint::V2_1::implementation::BiometricsFingerprint;
+using android::hardware::configureRpcThreadpool;
+using android::hardware::joinRpcThreadpool;
+using android::sp;
+using vendor::xiaomi::hardware::fingerprintextension::V1_0::IXiaomiFingerprint;
+
+int main() {
+    android::sp<IBiometricsFingerprint> bio = BiometricsFingerprint::getInstance();
+    android::sp<IXiaomiFingerprint> xfe = BiometricsFingerprint::getXiaomiInstance();
+
+    configureRpcThreadpool(1, true /*callerWillJoin*/);
+
+    if (bio != nullptr) {
+        if (::android::OK != bio->registerAsService()) {
+            return 1;
+        }
+    } else {
+        ALOGE("Can't create instance of BiometricsFingerprint, nullptr");
+    }
+
+    if (xfe != nullptr) {
+        if (::android::OK != xfe->registerAsService()) {
+            return 1;
+        }
+    } else {
+        ALOGE("Can't create instance of XiaomiFingerprint, nullptr");
+    }
+
+    joinRpcThreadpool();
+
+    return 0; // should never get here
+}
diff --git a/biometrics/xiaomi_fingerprint.h b/biometrics/xiaomi_fingerprint.h
new file mode 100644
index 0000000..7d6d14f
--- /dev/null
+++ b/biometrics/xiaomi_fingerprint.h
@@ -0,0 +1,172 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#ifndef XIAOMI_FINGERPRINT_H
+#define XIAOMI_FINGERPRINT_H
+
+#include <hardware/hardware.h>
+#include <hardware/fingerprint.h>
+
+typedef struct xiaomi_fingerprint_device {
+    /**
+     * Common methods of the fingerprint device. This *must* be the first member
+     * of fingerprint_device as users of this structure will cast a hw_device_t
+     * to fingerprint_device pointer in contexts where it's known
+     * the hw_device_t references a fingerprint_device.
+     */
+    struct hw_device_t common;
+
+    /*
+     * Client provided callback function to receive notifications.
+     * Do not set by hand, use the function above instead.
+     */
+    fingerprint_notify_t notify;
+
+    /*
+     * Set notification callback:
+     * Registers a user function that would receive notifications from the HAL
+     * The call will block if the HAL state machine is in busy state until HAL
+     * leaves the busy state.
+     *
+     * Function return: 0 if callback function is successfuly registered
+     *                  or a negative number in case of error, generally from the errno.h set.
+     */
+    int (*set_notify)(struct xiaomi_fingerprint_device *dev, fingerprint_notify_t notify);
+
+    /*
+     * Fingerprint pre-enroll enroll request:
+     * Generates a unique token to upper layers to indicate the start of an enrollment transaction.
+     * This token will be wrapped by security for verification and passed to enroll() for
+     * verification before enrollment will be allowed. This is to ensure adding a new fingerprint
+     * template was preceded by some kind of credential confirmation (e.g. device password).
+     *
+     * Function return: 0 if function failed
+     *                  otherwise, a uint64_t of token
+     */
+    uint64_t (*pre_enroll)(struct xiaomi_fingerprint_device *dev);
+
+    /*
+     * Fingerprint enroll request:
+     * Switches the HAL state machine to collect and store a new fingerprint
+     * template. Switches back as soon as enroll is complete
+     * (fingerprint_msg.type == FINGERPRINT_TEMPLATE_ENROLLING &&
+     *  fingerprint_msg.data.enroll.samples_remaining == 0)
+     * or after timeout_sec seconds.
+     * The fingerprint template will be assigned to the group gid. User has a choice
+     * to supply the gid or set it to 0 in which case a unique group id will be generated.
+     *
+     * Function return: 0 if enrollment process can be successfully started
+     *                  or a negative number in case of error, generally from the errno.h set.
+     *                  A notify() function may be called indicating the error condition.
+     */
+    int (*enroll)(struct xiaomi_fingerprint_device *dev, const hw_auth_token_t *hat,
+                    uint32_t gid, uint32_t timeout_sec);
+
+    /*
+     * Finishes the enroll operation and invalidates the pre_enroll() generated challenge.
+     * This will be called at the end of a multi-finger enrollment session to indicate
+     * that no more fingers will be added.
+     *
+     * Function return: 0 if the request is accepted
+     *                  or a negative number in case of error, generally from the errno.h set.
+     */
+    int (*post_enroll)(struct xiaomi_fingerprint_device *dev);
+
+    /*
+     * get_authenticator_id:
+     * Returns a token associated with the current fingerprint set. This value will
+     * change whenever a new fingerprint is enrolled, thus creating a new fingerprint
+     * set.
+     *
+     * Function return: current authenticator id or 0 if function failed.
+     */
+    uint64_t (*get_authenticator_id)(struct xiaomi_fingerprint_device *dev);
+
+    /*
+     * Cancel pending enroll or authenticate, sending FINGERPRINT_ERROR_CANCELED
+     * to all running clients. Switches the HAL state machine back to the idle state.
+     * Unlike enroll_done() doesn't invalidate the pre_enroll() challenge.
+     *
+     * Function return: 0 if cancel request is accepted
+     *                  or a negative number in case of error, generally from the errno.h set.
+     */
+    int (*cancel)(struct xiaomi_fingerprint_device *dev);
+
+    /*
+     * Enumerate all the fingerprint templates found in the directory set by
+     * set_active_group()
+     * For each template found a notify() will be called with:
+     * fingerprint_msg.type == FINGERPRINT_TEMPLATE_ENUMERATED
+     * fingerprint_msg.data.enumerated.finger indicating a template id
+     * fingerprint_msg.data.enumerated.remaining_templates indicating how many more
+     * enumeration messages to expect.
+     * Note: If there are no fingerprints, then this should return 0 and the first fingerprint
+     *                  enumerated should have fingerid=0 and remaining=0
+     * Function return: 0 if enumerate request is accepted
+     *                  or a negative number in case of error, generally from the errno.h set.
+     */
+    int (*enumerate)(struct xiaomi_fingerprint_device *dev);
+
+    /*
+     * Fingerprint remove request:
+     * Deletes a fingerprint template.
+     * Works only within the path set by set_active_group().
+     * The fid parameter can be used as a widcard:
+     *   * fid == 0 -- delete all the templates in the group.
+     *   * fid != 0 -- delete this specific template from the group.
+     * For each template found a notify() will be called with:
+     * fingerprint_msg.type == FINGERPRINT_TEMPLATE_REMOVED
+     * fingerprint_msg.data.removed.finger indicating a template id deleted
+     * fingerprint_msg.data.removed.remaining_templates indicating how many more
+     * templates will be deleted by this operation.
+     *
+     * Function return: 0 if fingerprint template(s) can be successfully deleted
+     *                  or a negative number in case of error, generally from the errno.h set.
+     */
+    int (*remove)(struct xiaomi_fingerprint_device *dev, uint32_t gid, uint32_t fid);
+
+    /*
+     * Restricts the HAL operation to a set of fingerprints belonging to a
+     * group provided.
+     * The caller must provide a path to a storage location within the user's
+     * data directory.
+     *
+     * Function return: 0 on success
+     *                  or a negative number in case of error, generally from the errno.h set.
+     */
+    int (*set_active_group)(struct xiaomi_fingerprint_device *dev, uint32_t gid,
+                            const char *store_path);
+
+    /*
+     * Authenticates an operation identifed by operation_id
+     *
+     * Function return: 0 on success
+     *                  or a negative number in case of error, generally from the errno.h set.
+     */
+    int (*authenticate)(struct xiaomi_fingerprint_device *dev, uint64_t operation_id, uint32_t gid);
+
+    /*
+     * Call a Xiaomi fingerprint extension command.
+     */
+    int (*extCmd)(struct xiaomi_fingerprint_device *dev, int32_t cmd, int32_t param);
+
+    /* 
+     * Reserved for backward binary compatibility
+     */
+    void *reserved[4];  
+} xiaomi_fingerprint_device_t;
+
+#endif  // XIAOMI_FINGERPRINT_H