sdm845-common: Implement in-screen fingerprint HAL

Change-Id: If38552f7f702c688850bfe778a7fbb08c2835c0e

fod/Android.bp

@@ -0,0 +1,37 @@
+//
+// 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.
+
+cc_binary {
+    relative_install_path: "hw",
+    defaults: ["hidl_defaults"],
+    name: "vendor.lineage.biometrics.fingerprint.inscreen@1.0-service.xiaomi_sdm845",
+    init_rc: ["vendor.lineage.biometrics.fingerprint.inscreen@1.0-service.xiaomi_sdm845.rc"],
+    srcs: [
+        "service.cpp",
+        "FingerprintInscreen.cpp",
+    ],
+    vendor: true,
+    shared_libs: [
+        "libbase",
+        "libhardware",
+        "libhidlbase",
+        "libhidltransport",
+        "liblog",
+        "libhwbinder",
+        "libutils",
+        "vendor.lineage.biometrics.fingerprint.inscreen@1.0",
+        "vendor.xiaomi.hardware.fingerprintextension@1.0",
+    ],
+}

fod/FingerprintInscreen.cpp

@@ -0,0 +1,146 @@
+/*
+ * 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 <cmath>
+#include <fstream>
+
+#define COMMAND_NIT 10
+#define PARAM_NIT_FOD 3
+#define PARAM_NIT_NONE 0
+
+#define DISPPARAM_PATH "/sys/devices/platform/soc/ae00000.qcom,mdss_mdp/drm/card0/card0-DSI-1/disp_param"
+#define DISPPARAM_HBM_FOD_ON "0x20000"
+#define DISPPARAM_HBM_FOD_OFF "0xE0000"
+
+#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 453
+#define FOD_SENSOR_Y 1640
+#define FOD_SENSOR_SIZE 173
+
+namespace {
+
+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(DISPPARAM_PATH, DISPPARAM_HBM_FOD_ON);
+    xiaomiFingerprintService->extCmd(COMMAND_NIT, PARAM_NIT_FOD);
+    return Void();
+}
+
+Return<void> FingerprintInscreen::onRelease() {
+    set(DISPPARAM_PATH, DISPPARAM_HBM_FOD_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) {
+    float alpha;
+
+    if (brightness > 62) {
+        alpha = 1.0 - pow(brightness / 255.0 * 430.0 / 600.0, 0.45);
+    } else {
+        alpha = 1.0 - pow(brightness / 200.0, 0.45);
+    }
+
+    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

fod/FingerprintInscreen.h

@@ -0,0 +1,67 @@
+/*
+ * 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.
+ */
+
+#ifndef VENDOR_LINEAGE_BIOMETRICS_FINGERPRINT_INSCREEN_V1_0_FINGERPRINTINSCREEN_H
+#define VENDOR_LINEAGE_BIOMETRICS_FINGERPRINT_INSCREEN_V1_0_FINGERPRINTINSCREEN_H
+
+#include <vendor/lineage/biometrics/fingerprint/inscreen/1.0/IFingerprintInscreen.h>
+#include <vendor/xiaomi/hardware/fingerprintextension/1.0/IXiaomiFingerprint.h>
+
+namespace vendor {
+namespace lineage {
+namespace biometrics {
+namespace fingerprint {
+namespace inscreen {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::vendor::xiaomi::hardware::fingerprintextension::V1_0::IXiaomiFingerprint;
+
+class FingerprintInscreen : public IFingerprintInscreen {
+  public:
+    FingerprintInscreen();
+    Return<int32_t> getPositionX() override;
+    Return<int32_t> getPositionY() override;
+    Return<int32_t> getSize() override;
+    Return<void> onStartEnroll() override;
+    Return<void> onFinishEnroll() override;
+    Return<void> onPress() override;
+    Return<void> onRelease() override;
+    Return<void> onShowFODView() override;
+    Return<void> onHideFODView() override;
+    Return<bool> handleAcquired(int32_t acquiredInfo, int32_t vendorCode) override;
+    Return<bool> handleError(int32_t error, int32_t vendorCode) override;
+    Return<void> setLongPressEnabled(bool enabled) override;
+    Return<int32_t> getDimAmount(int32_t brightness) override;
+    Return<bool> shouldBoostBrightness() override;
+    Return<void> setCallback(const sp<IFingerprintInscreenCallback>& callback) override;
+
+  private:
+    sp<IXiaomiFingerprint> xiaomiFingerprintService;
+};
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace inscreen
+}  // namespace fingerprint
+}  // namespace biometrics
+}  // namespace lineage
+}  // namespace vendor
+
+#endif  // VENDOR_LINEAGE_BIOMETRICS_FINGERPRINT_INSCREEN_V1_0_FINGERPRINTINSCREEN_H

fod/service.cpp

@@ -0,0 +1,50 @@
+/*
+ * 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 "lineage.biometrics.fingerprint.inscreen@1.0-service.xiaomi_sdm845"
+
+#include <android-base/logging.h>
+#include <hidl/HidlTransportSupport.h>
+
+#include "FingerprintInscreen.h"
+
+using android::hardware::configureRpcThreadpool;
+using android::hardware::joinRpcThreadpool;
+
+using vendor::lineage::biometrics::fingerprint::inscreen::V1_0::IFingerprintInscreen;
+using vendor::lineage::biometrics::fingerprint::inscreen::V1_0::implementation::FingerprintInscreen;
+
+using android::OK;
+using android::status_t;
+
+int main() {
+    android::sp<IFingerprintInscreen> service = new FingerprintInscreen();
+
+    configureRpcThreadpool(1, true);
+
+    status_t status = service->registerAsService();
+    if (status != OK) {
+        LOG(ERROR) << "Cannot register FOD HAL service.";
+        return 1;
+    }
+
+    LOG(INFO) << "FOD HAL service ready.";
+
+    joinRpcThreadpool();
+
+    LOG(ERROR) << "FOD HAL service failed to join thread pool.";
+    return 1;
+}

fod/vendor.lineage.biometrics.fingerprint.inscreen@1.0-service.xiaomi_sdm845.rc

@@ -0,0 +1,11 @@
+on boot
+    chown system system /sys/devices/virtual/touch/tp_dev/fod_status
+
+    chmod 0644 /sys/devices/virtual/touch/tp_dev/fod_status
+
+service fingerprint-inscreen-1-0 /vendor/bin/hw/vendor.lineage.biometrics.fingerprint.inscreen@1.0-service.xiaomi_sdm845
+    interface vendor.lineage.biometrics.fingerprint.inscreen@1.0::IFingerprintInscreen default
+    class hal
+    user system
+    group system
+    shutdown critical

sepolicy/vendor/file.te

@@ -7,6 +7,7 @@ type thermal_data_file, data_file_type, file_type;
 
 type proc_tp, proc_type, fs_type;
 
+type sysfs_fod, sysfs_type, fs_type;
 type sysfs_gps, sysfs_type, fs_type;
 type sysfs_wireless_supply, sysfs_type, fs_type;
 

sepolicy/vendor/file_contexts

@@ -45,6 +45,7 @@
 /vendor/bin/hw/android\.hardware\.light@2\.0-service\.xiaomi_sdm845                                     u:object_r:hal_light_default_exec:s0
 /vendor/bin/hw/android\.hardware\.neuralnetworks@1\.1-service-qti                                       u:object_r:hal_neuralnetworks_default_exec:s0
 /vendor/bin/hw/android\.hardware\.power@1\.2-service\.xiaomi_sdm845                                     u:object_r:hal_power_default_exec:s0
+/vendor/bin/hw/vendor\.lineage\.biometrics\.fingerprint\.inscreen@1.0-service\.xiaomi_sdm845            u:object_r:hal_lineage_fod_sdm845_exec:s0
 /vendor/bin/hw/vendor\.lineage\.livedisplay@2\.0-service\.xiaomi_sdm845                                 u:object_r:hal_lineage_livedisplay_qti_exec:s0
 
 # Persist files

sepolicy/vendor/genfs_contexts

@@ -15,5 +15,7 @@ genfscon sysfs /devices/platform/soc/soc:fingerprint_fpc/fingerdown_wait       u
 genfscon sysfs /devices/platform/soc/soc:fingerprint_fpc/irq                   u:object_r:sysfs_fingerprint:s0
 genfscon sysfs /devices/platform/soc/soc:fingerprint_fpc/wakeup_enable         u:object_r:sysfs_fingerprint:s0
 genfscon sysfs /devices/platform/soc/soc:fingerprint_goodix/proximity_state    u:object_r:sysfs_fingerprint:s0
+genfscon sysfs /devices/platform/soc/soc:qcom,dsi-display-primary/fod_hbm      u:object_r:sysfs_fod:s0
 genfscon sysfs /devices/platform/soc/soc:qcom,ipa_fws/subsys2/restart_level    u:object_r:sysfs_ssr_toggle:s0
 genfscon sysfs /devices/platform/soc/soc:qcom,kgsl-hyp/subsys3/restart_level   u:object_r:sysfs_ssr_toggle:s0
+genfscon sysfs /devices/virtual/touch/tp_dev/fod_status                        u:object_r:sysfs_fod:s0

sepolicy/vendor/hal_fingerprint_default.te

@@ -5,6 +5,8 @@ allow hal_fingerprint_default self:netlink_socket create_socket_perms_no_ioctl;
 allow hal_fingerprint_default sysfs_fingerprint:file rw_file_perms;
 allow hal_fingerprint_default tee_device:chr_file rw_file_perms;
 allow hal_fingerprint_default uhid_device:chr_file rw_file_perms;
+allow hal_fingerprint_default input_device:dir r_dir_perms;
+allow hal_fingerprint_default input_device:chr_file rw_file_perms;
 
 set_prop(hal_fingerprint_default, vendor_fp_prop)
 hal_client_domain(hal_fingerprint_default, hal_perf)

sepolicy/vendor/hal_lineage_fod_sdm845.te

@@ -0,0 +1,13 @@
+type hal_lineage_fod_sdm845, domain;
+hal_server_domain(hal_lineage_fod_sdm845, hal_lineage_fod)
+
+type hal_lineage_fod_sdm845_exec, exec_type, vendor_file_type, file_type;
+init_daemon_domain(hal_lineage_fod_sdm845)
+
+allow hal_lineage_fod_sdm845 sysfs_fod:file rw_file_perms;
+allow hal_lineage_fod_sdm845 sysfs_graphics:dir r_dir_perms;
+allow hal_lineage_fod_sdm845 sysfs_graphics:file rw_file_perms;
+
+binder_call(hal_lineage_fod_sdm845, hal_fingerprint_default)
+
+hal_client_domain(hal_lineage_fod_sdm845, hal_fingerprint)