From 00f0edf25e61c3fe75f62c4350a8b2f70a0ee894 Mon Sep 17 00:00:00 2001
From: DtHnAme <32587943+DtHnAme@users.noreply.github.com>
Date: Fri, 7 Jun 2024 20:51:07 +0530
Subject: [PATCH] power: Implement DT2W through OplusTouch

Co-authored-by: Maitreya25 <maitreyapatni25@gmail.com>
Co-authored-by: Mashopy <eliasgheeraert@gmail.com>
Co-authored-by: Bruno Martins <bgcngm@gmail.com>
Change-Id: I5ad57428aeefe68c8a188aa1e445f4091cbc0d8a
---
 .../touch/touch-headers/OplusTouchConstants.h |  3 +
 power/Android.bp                              | 26 ++++++++
 power/power-mode.cpp                          | 66 +++++++++++++++++++
 3 files changed, 95 insertions(+)
 create mode 100644 power/Android.bp
 create mode 100644 power/power-mode.cpp

diff --git a/aidl/touch/touch-headers/OplusTouchConstants.h b/aidl/touch/touch-headers/OplusTouchConstants.h
index 45ef7d4..d2e9c8d 100644
--- a/aidl/touch/touch-headers/OplusTouchConstants.h
+++ b/aidl/touch/touch-headers/OplusTouchConstants.h
@@ -11,6 +11,9 @@ namespace OplusTouchConstants {
 constexpr int DEFAULT_TP_IC_ID = 0;
 constexpr int SUB_DISPLAY_TP_IC_ID = 1;
 
+// Features
+constexpr int DOUBLE_TAP_GESTURE = 1 << 1;
+
 // Node IDs
 constexpr int DOUBLE_TAP_ENABLE_NODE = 1;
 constexpr int DOUBLE_TAP_INDEP_NODE = 21;
diff --git a/power/Android.bp b/power/Android.bp
new file mode 100644
index 0000000..a78ea62
--- /dev/null
+++ b/power/Android.bp
@@ -0,0 +1,26 @@
+//
+// SPDX-FileCopyrightText: 2024-2025 The LineageOS Project
+// SPDX-License-Identifier: Apache-2.0
+//
+
+cc_library_static {
+    name: "power-ext-oplus",
+    defaults: ["android.hardware.power-ndk_shared"],
+    vendor: true,
+    srcs: [
+        "power-mode.cpp",
+    ],
+    cppflags: select(soong_config_variable("power_libperfmgr", "mode_extension_lib"), {
+        any: ["-DLIBPERFMGR_EXT"],
+        default: [],
+    }),
+    header_libs: [
+        "vendor.oplus.hardware.touch-headers",
+    ],
+    shared_libs: [
+        "libbase",
+    ],
+    whole_static_libs: [
+        "vendor.oplus.hardware.touch-V2-ndk",
+    ],
+}
diff --git a/power/power-mode.cpp b/power/power-mode.cpp
new file mode 100644
index 0000000..208bcfc
--- /dev/null
+++ b/power/power-mode.cpp
@@ -0,0 +1,66 @@
+/*
+ * SPDX-FileCopyrightText: 2024-2025 The LineageOS Project
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <aidl/android/hardware/power/BnPower.h>
+#include <aidl/vendor/oplus/hardware/touch/IOplusTouch.h>
+
+#include <android-base/logging.h>
+#include <android/binder_manager.h>
+
+#include <OplusTouchConstants.h>
+
+using aidl::android::hardware::power::Mode;
+using aidl::vendor::oplus::hardware::touch::IOplusTouch;
+
+#ifdef LIBPERFMGR_EXT
+namespace aidl::google::hardware::power::impl::pixel {
+#else
+namespace aidl::android::hardware::power::impl {
+#endif
+
+bool isDeviceSpecificModeSupported(Mode type, bool* _aidl_return) {
+    switch (type) {
+        case Mode::DOUBLE_TAP_TO_WAKE:
+            *_aidl_return = true;
+            return true;
+        default:
+            return false;
+    }
+}
+
+bool setDeviceSpecificMode(Mode type, bool enabled) {
+    switch (type) {
+        case Mode::DOUBLE_TAP_TO_WAKE: {
+            std::string tmp;
+            int contents = 0;
+
+            const std::string instance = std::string() + IOplusTouch::descriptor + "/default";
+            std::shared_ptr<IOplusTouch> oplusTouch = IOplusTouch::fromBinder(
+                    ndk::SpAIBinder(AServiceManager_waitForService(instance.c_str())));
+            LOG(INFO) << "Power mode: " << toString(type) << " isDoubleTapEnabled: " << enabled;
+
+            oplusTouch->touchReadNodeFile(OplusTouchConstants::DEFAULT_TP_IC_ID,
+                                          OplusTouchConstants::DOUBLE_TAP_INDEP_NODE, &tmp);
+            contents = std::stoi(tmp, nullptr, 16);
+
+            if (enabled) {
+                contents |= OplusTouchConstants::DOUBLE_TAP_GESTURE;
+            } else {
+                contents &= ~OplusTouchConstants::DOUBLE_TAP_GESTURE;
+            }
+
+            oplusTouch->touchWriteNodeFileOneWay(OplusTouchConstants::DEFAULT_TP_IC_ID,
+                                                 OplusTouchConstants::DOUBLE_TAP_ENABLE_NODE, "1");
+            oplusTouch->touchWriteNodeFileOneWay(OplusTouchConstants::DEFAULT_TP_IC_ID,
+                                                 OplusTouchConstants::DOUBLE_TAP_INDEP_NODE,
+                                                 std::to_string(contents));
+            return true;
+        }
+        default:
+            return false;
+    }
+}
+
+}  // namespace