gts3l-common: touch: Add touch HAL implement

To use KeyDisabler for hardware touch keys.
This will disable touch keys properly.

Signed-off-by: Deokgyu Yang <secugyu@gmail.com>
Change-Id: I6c2cfb8577bab19c708300aa16e0eb18730c293d

gts3l.mk

@@ -394,6 +394,10 @@ PRODUCT_COPY_FILES += \
 PRODUCT_PACKAGES += \
     textclassifier.bundle1
 
+# Touch
+PRODUCT_PACKAGES += \
+    vendor.lineage.touch@1.0-service.gts3l
+
 # Trust HAL
 PRODUCT_PACKAGES += \
     vendor.lineage.trust@1.0-service

touch/Android.bp

@@ -0,0 +1,32 @@
+// 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 {
+    name: "vendor.lineage.touch@1.0-service.gts3l",
+    init_rc: ["vendor.lineage.touch@1.0-service.gts3l.rc"],
+    vintf_fragments: ["vendor.lineage.touch@1.0-service.gts3l.xml"],
+    defaults: ["hidl_defaults"],
+    relative_install_path: "hw",
+    vendor: true,
+    srcs: [
+        "KeyDisabler.cpp",
+        "service.cpp"
+    ],
+    shared_libs: [
+        "libbase",
+        "libhidlbase",
+        "libutils",
+        "vendor.lineage.touch@1.0",
+    ],
+}

touch/KeyDisabler.cpp

@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2019,2021 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.
+ */
+
+#include <android-base/file.h>
+#include <android-base/logging.h>
+#include <android-base/strings.h>
+
+#include "KeyDisabler.h"
+
+using ::android::base::ReadFileToString;
+using ::android::base::Trim;
+using ::android::base::WriteStringToFile;
+
+namespace vendor {
+namespace lineage {
+namespace touch {
+namespace V1_0 {
+namespace implementation {
+
+constexpr const char kControlPath[] = "/sys/class/sec/sec_touchkey/input/enabled";
+
+KeyDisabler::KeyDisabler() : has_key_disabler_(!access(kControlPath, R_OK | W_OK)) {}
+
+// Methods from ::vendor::lineage::touch::V1_0::IKeyDisabler follow.
+Return<bool> KeyDisabler::isEnabled() {
+    std::string buf;
+
+    if (!has_key_disabler_) return false;
+
+    if (!ReadFileToString(kControlPath, &buf, true)) {
+        LOG(ERROR) << "Failed to read from " << kControlPath;
+        return false;
+    }
+
+    return Trim(buf) == "1";
+}
+
+Return<bool> KeyDisabler::setEnabled(bool enabled) {
+    if (!has_key_disabler_) return false;
+
+    if (!WriteStringToFile(std::to_string(!enabled), kControlPath)) {
+        LOG(ERROR) << "Failed to write to " << kControlPath;
+        return false;
+    }
+
+    return true;
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace touch
+}  // namespace lineage
+}  // namespace vendor

touch/KeyDisabler.h

@@ -0,0 +1,44 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include <vendor/lineage/touch/1.0/IKeyDisabler.h>
+
+namespace vendor {
+namespace lineage {
+namespace touch {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::Return;
+
+class KeyDisabler : public IKeyDisabler {
+  public:
+    KeyDisabler();
+    // Methods from ::vendor::lineage::touch::V1_0::IKeyDisabler follow.
+    Return<bool> isEnabled() override;
+    Return<bool> setEnabled(bool enabled) override;
+
+  private:
+    const bool has_key_disabler_;
+};
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace touch
+}  // namespace lineage
+}  // namespace vendor

touch/service.cpp

@@ -0,0 +1,62 @@
+/*
+ * 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 "vendor.lineage.touch@1.0-service.gts3l"
+
+#include <android-base/logging.h>
+#include <hidl/HidlTransportSupport.h>
+
+#include "KeyDisabler.h"
+
+using android::OK;
+using android::sp;
+using android::status_t;
+using android::hardware::configureRpcThreadpool;
+using android::hardware::joinRpcThreadpool;
+
+using ::vendor::lineage::touch::V1_0::IKeyDisabler;
+using ::vendor::lineage::touch::V1_0::implementation::KeyDisabler;
+
+int main() {
+    sp<KeyDisabler> keyDisabler;
+    status_t status;
+
+    LOG(INFO) << "Touch HAL service is starting.";
+
+    keyDisabler = new KeyDisabler();
+    if (keyDisabler == nullptr) {
+        LOG(ERROR) << "Can not create an instance of Touch HAL KeyDisabler Iface, exiting.";
+        goto shutdown;
+    }
+
+    configureRpcThreadpool(1, true /*callerWillJoin*/);
+
+    status = keyDisabler->registerAsService();
+    if (status != OK) {
+        LOG(ERROR) << "Could not register service for Touch HAL KeyDisabler Iface ("
+                   << status << ")";
+        goto shutdown;
+    }
+
+    LOG(INFO) << "Touch HAL service is ready.";
+    joinRpcThreadpool();
+    // Should not pass this line
+
+shutdown:
+    // In normal operation, we don't expect the thread pool to shutdown
+    LOG(ERROR) << "Touch HAL service is shutting down.";
+    return 1;
+}

touch/vendor.lineage.touch@1.0-service.gts3l.rc

@@ -0,0 +1,9 @@
+on init
+    # Key Disabler
+    chown system system /sys/class/sec/sec_touchkey/input/enabled
+    chmod 0660 /sys/class/sec/sec_touchkey/input/enabled
+
+service vendor.touch-hal-1-0 /vendor/bin/hw/vendor.lineage.touch@1.0-service.gts3l
+    class hal
+    user system
+    group system

touch/vendor.lineage.touch@1.0-service.gts3l.xml

@@ -0,0 +1,11 @@
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>vendor.lineage.touch</name>
+        <transport>hwbinder</transport>
+        <version>1.0</version>
+        <interface>
+            <name>IKeyDisabler</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</manifest>