hidl: touch: Add binderized service implementation

* Change default ::implementation namespace to ::samsung
* Fill in required methods for used impls
* Cleanup passthrough code for used impls
* Add and setup binderized service

Change-Id: Iadc3b6e385233d103c3349ce31a08d6d040886c7

lineagehw/hidl/touch/Android.bp

@@ -12,17 +12,10 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-cc_library_shared {
-    // FIXME: this should only be -impl for a passthrough hal.
-    // In most cases, to convert this to a binderized implementation, you should:
-    // - change '-impl' to '-service' here and make it a cc_binary instead of a
-    //   cc_library_shared.
-    // - add a *.rc file for this module.
-    // - delete HIDL_FETCH_I* functions.
-    // - call configureRpcThreadpool and registerAsService on the instance.
-    // You may also want to append '-impl/-service' with a specific identifier like
-    // '-vendor' or '-<hardware identifier>' etc to distinguish it.
-    name: "vendor.lineage.touch@1.0-impl",
+cc_binary {
+    name: "vendor.lineage.touch@1.0-service.samsung",
+    init_rc: ["vendor.lineage.touch@1.0-service.samsung.rc"],
+    defaults: ["hidl_defaults"],
     relative_install_path: "hw",
     // FIXME: this should be 'vendor: true' for modules that will eventually be
     // on AOSP.
@@ -32,8 +25,11 @@ cc_library_shared {
         "KeyDisabler.cpp",
         "StylusMode.cpp",
         "TouchscreenGesture.cpp",
+        "service.cpp"
     ],
     shared_libs: [
+        "libbase",
+        "libbinder",
         "libhidlbase",
         "libhidltransport",
         "libutils",

lineagehw/hidl/touch/GloveMode.cpp

@@ -14,28 +14,49 @@
  * limitations under the License.
  */
 
+#include <fstream>
+
 #include "GloveMode.h"
 
 namespace vendor {
 namespace lineage {
 namespace touch {
 namespace V1_0 {
-namespace implementation {
+namespace samsung {
 
-// Methods from ::vendor::lineage::touch::V1_0::IGloveMode follow.
-Return<void> GloveMode::setEnabled(bool enabled) {
-    // TODO implement
-    return Void();
+bool GloveMode::isSupported() {
+    std::ifstream file("/sys/class/sec/tsp/cmd_list");
+    if (file.is_open()) {
+        std::string line;
+        while (getline(file, line)) {
+            if (!line.compare("glove_mode"))
+                return true;
+        }
+        file.close();
+    }
+    return false;
 }
 
+// Methods from ::vendor::lineage::touch::V1_0::IGloveMode follow.
+Return<bool> GloveMode::isEnabled() {
+    std::ifstream file("/sys/class/sec/tsp/cmd_result");
+    if (file.is_open()) {
+        std::string line;
+        getline(file, line);
+        if (!line.compare("glove_mode,1:OK"))
+            return true;
+        file.close();
+    }
+    return false;
+}
 
-// Methods from ::android::hidl::base::V1_0::IBase follow.
+Return<bool> GloveMode::setEnabled(bool enabled) {
+    std::ofstream file("/sys/class/sec/tsp/cmd");
+    file << "glove_mode," << (enabled ? "1" : "0");
+    return true;
+}
 
-//IGloveMode* HIDL_FETCH_IGloveMode(const char* /* name */) {
-    //return new GloveMode();
-//}
-//
-}  // namespace implementation
+}  // namespace samsung
 }  // namespace V1_0
 }  // namespace touch
 }  // namespace lineage

lineagehw/hidl/touch/GloveMode.h

@@ -25,7 +25,7 @@ namespace vendor {
 namespace lineage {
 namespace touch {
 namespace V1_0 {
-namespace implementation {
+namespace samsung {
 
 using ::android::hardware::hidl_array;
 using ::android::hardware::hidl_memory;
@@ -35,18 +35,21 @@ using ::android::hardware::Return;
 using ::android::hardware::Void;
 using ::android::sp;
 
-struct GloveMode : public IGloveMode {
+class GloveMode : public IGloveMode {
+  public:
+    GloveMode() = default;
+
+    bool isSupported();
+
     // Methods from ::vendor::lineage::touch::V1_0::IGloveMode follow.
-    Return<void> setEnabled(bool enabled) override;
+    Return<bool> isEnabled() override;
+    Return<bool> setEnabled(bool enabled) override;
 
     // Methods from ::android::hidl::base::V1_0::IBase follow.
 
 };
 
-// FIXME: most likely delete, this is only for passthrough implementations
-// extern "C" IGloveMode* HIDL_FETCH_IGloveMode(const char* name);
-
-}  // namespace implementation
+}  // namespace samsung
 }  // namespace V1_0
 }  // namespace touch
 }  // namespace lineage

lineagehw/hidl/touch/KeyDisabler.cpp

@@ -14,28 +14,40 @@
  * limitations under the License.
  */
 
+#include <fstream>
+
 #include "KeyDisabler.h"
 
 namespace vendor {
 namespace lineage {
 namespace touch {
 namespace V1_0 {
-namespace implementation {
+namespace samsung {
 
-// Methods from ::vendor::lineage::touch::V1_0::IKeyDisabler follow.
-Return<void> KeyDisabler::setEnabled(bool enabled) {
-    // TODO implement
-    return Void();
+bool KeyDisabler::isSupported() {
+    std::ofstream file("/sys/class/sec/sec_touchkey/input/enabled");
+    return file.good();
 }
 
+// Methods from ::vendor::lineage::touch::V1_0::IKeyDisabler follow.
+Return<bool> KeyDisabler::isEnabled() {
+    std::ifstream file("/sys/class/sec/sec_touchkey/input/enabled");
+    int status = -1;
+
+    if (file.is_open()) {
+        file >> status;
+    }
 
-// Methods from ::android::hidl::base::V1_0::IBase follow.
+    return file.good() && status == 0;
+}
+
+Return<bool> KeyDisabler::setEnabled(bool enabled) {
+    std::ofstream file("/sys/class/sec/sec_touchkey/input/enabled");
+    file << (enabled ? "0" : "1");
+    return true;
+}
 
-//IKeyDisabler* HIDL_FETCH_IKeyDisabler(const char* /* name */) {
-    //return new KeyDisabler();
-//}
-//
-}  // namespace implementation
+}  // namespace samsung
 }  // namespace V1_0
 }  // namespace touch
 }  // namespace lineage

lineagehw/hidl/touch/KeyDisabler.h

@@ -25,7 +25,7 @@ namespace vendor {
 namespace lineage {
 namespace touch {
 namespace V1_0 {
-namespace implementation {
+namespace samsung {
 
 using ::android::hardware::hidl_array;
 using ::android::hardware::hidl_memory;
@@ -35,18 +35,21 @@ using ::android::hardware::Return;
 using ::android::hardware::Void;
 using ::android::sp;
 
-struct KeyDisabler : public IKeyDisabler {
+class KeyDisabler : public IKeyDisabler {
+  public:
+    KeyDisabler() = default;
+
+    bool isSupported();
+
     // Methods from ::vendor::lineage::touch::V1_0::IKeyDisabler follow.
-    Return<void> setEnabled(bool enabled) override;
+    Return<bool> isEnabled() override;
+    Return<bool> setEnabled(bool enabled) override;
 
     // Methods from ::android::hidl::base::V1_0::IBase follow.
 
 };
 
-// FIXME: most likely delete, this is only for passthrough implementations
-// extern "C" IKeyDisabler* HIDL_FETCH_IKeyDisabler(const char* name);
-
-}  // namespace implementation
+}  // namespace samsung
 }  // namespace V1_0
 }  // namespace touch
 }  // namespace lineage

lineagehw/hidl/touch/StylusMode.cpp

@@ -14,28 +14,49 @@
  * limitations under the License.
  */
 
+#include <fstream>
+
 #include "StylusMode.h"
 
 namespace vendor {
 namespace lineage {
 namespace touch {
 namespace V1_0 {
-namespace implementation {
+namespace samsung {
 
-// Methods from ::vendor::lineage::touch::V1_0::IStylusMode follow.
-Return<void> StylusMode::setEnabled(bool enabled) {
-    // TODO implement
-    return Void();
+bool StylusMode::isSupported() {
+    std::ifstream file("/sys/class/sec/tsp/cmd_list");
+    if (file.is_open()) {
+        std::string line;
+        while (getline(file, line)) {
+            if (!line.compare("hover_enable"))
+                return true;
+        }
+        file.close();
+    }
+    return false;
 }
 
+// Methods from ::vendor::lineage::touch::V1_0::IStylusMode follow.
+Return<bool> StylusMode::isEnabled() {
+    std::ifstream file("/sys/class/sec/tsp/cmd_result");
+    if (file.is_open()) {
+        std::string line;
+        getline(file, line);
+        if (!line.compare("hover_enable,1:OK"))
+            return true;
+        file.close();
+    }
+    return false;
+}
 
-// Methods from ::android::hidl::base::V1_0::IBase follow.
+Return<bool> StylusMode::setEnabled(bool enabled) {
+    std::ofstream file("/sys/class/sec/tsp/cmd");
+    file << "hover_enable," << (enabled ? "1" : "0");
+    return true;
+}
 
-//IStylusMode* HIDL_FETCH_IStylusMode(const char* /* name */) {
-    //return new StylusMode();
-//}
-//
-}  // namespace implementation
+}  // namespace samsung
 }  // namespace V1_0
 }  // namespace touch
 }  // namespace lineage

lineagehw/hidl/touch/StylusMode.h

@@ -25,7 +25,7 @@ namespace vendor {
 namespace lineage {
 namespace touch {
 namespace V1_0 {
-namespace implementation {
+namespace samsung {
 
 using ::android::hardware::hidl_array;
 using ::android::hardware::hidl_memory;
@@ -35,18 +35,21 @@ using ::android::hardware::Return;
 using ::android::hardware::Void;
 using ::android::sp;
 
-struct StylusMode : public IStylusMode {
+class StylusMode : public IStylusMode {
+  public:
+    StylusMode() = default;
+
+    bool isSupported();
+
     // Methods from ::vendor::lineage::touch::V1_0::IStylusMode follow.
-    Return<void> setEnabled(bool enabled) override;
+    Return<bool> isEnabled() override;
+    Return<bool> setEnabled(bool enabled) override;
 
     // Methods from ::android::hidl::base::V1_0::IBase follow.
 
 };
 
-// FIXME: most likely delete, this is only for passthrough implementations
-// extern "C" IStylusMode* HIDL_FETCH_IStylusMode(const char* name);
-
-}  // namespace implementation
+}  // namespace samsung
 }  // namespace V1_0
 }  // namespace touch
 }  // namespace lineage

lineagehw/hidl/touch/TouchscreenGesture.cpp

@@ -14,33 +14,66 @@
  * limitations under the License.
  */
 
+#include <fstream>
+
 #include "TouchscreenGesture.h"
 
 namespace vendor {
 namespace lineage {
 namespace touch {
 namespace V1_0 {
-namespace implementation {
+namespace samsung {
+
+static constexpr const char* kGeasturePath = "/sys/class/sec/sec_epen/epen_gestures";
+
+const std::map<int32_t, TouchscreenGesture::GestureInfo> TouchscreenGesture::kGestureInfoMap = {
+    {0, {0x2f1, "Swipe up stylus"}},
+    {1, {0x2f2, "Swipe down stylus"}},
+    {2, {0x2f3, "Swipe left stylus"}},
+    {3, {0x2f4, "Swipe right stylus"}},
+    {4, {0x2f5, "Long press stylus"}},
+};
+
+
+bool TouchscreenGesture::isSupported() {
+    std::ifstream file(kGeasturePath);
+    return file.good();
+}
 
 // Methods from ::vendor::lineage::touch::V1_0::ITouchscreenGesture follow.
-Return<void> TouchscreenGesture::getSupportedGestures(getSupportedGestures_cb _hidl_cb) {
-    // TODO implement
+Return<void> TouchscreenGesture::getSupportedGestures(getSupportedGestures_cb resultCb) {
+    std::vector<Gesture> gestures;
+
+    for (const auto& entry : kGestureInfoMap) {
+        gestures.push_back({entry.first, entry.second.name, entry.second.keycode});
+    }
+    resultCb(gestures);
+
     return Void();
 }
 
-Return<void> TouchscreenGesture::setGestureEnabled(const ::vendor::lineage::touch::V1_0::Gesture& gesture, bool enabled) {
-    // TODO implement
-    return Void();
+Return<bool> TouchscreenGesture::setGestureEnabled(
+    const ::vendor::lineage::touch::V1_0::Gesture& gesture, bool enabled) {
+    std::fstream file(kGeasturePath);
+    int gestureMode;
+    int mask = 1 << gesture.id;
+    
+    file >> gestureMode;
+
+    if (enabled)
+        gestureMode |= mask;
+    else
+        gestureMode &= ~mask;
+
+    file << gestureMode;
+
+    return !file.fail();
 }
 
 
 // Methods from ::android::hidl::base::V1_0::IBase follow.
 
-//ITouchscreenGesture* HIDL_FETCH_ITouchscreenGesture(const char* /* name */) {
-    //return new TouchscreenGesture();
-//}
-//
-}  // namespace implementation
+}  // namespace samsung
 }  // namespace V1_0
 }  // namespace touch
 }  // namespace lineage

lineagehw/hidl/touch/TouchscreenGesture.h

@@ -25,7 +25,7 @@ namespace vendor {
 namespace lineage {
 namespace touch {
 namespace V1_0 {
-namespace implementation {
+namespace samsung {
 
 using ::android::hardware::hidl_array;
 using ::android::hardware::hidl_memory;
@@ -35,19 +35,28 @@ using ::android::hardware::Return;
 using ::android::hardware::Void;
 using ::android::sp;
 
-struct TouchscreenGesture : public ITouchscreenGesture {
+class TouchscreenGesture : public ITouchscreenGesture {
+  public:
+    bool isSupported();
+
     // Methods from ::vendor::lineage::touch::V1_0::ITouchscreenGesture follow.
-    Return<void> getSupportedGestures(getSupportedGestures_cb _hidl_cb) override;
-    Return<void> setGestureEnabled(const ::vendor::lineage::touch::V1_0::Gesture& gesture, bool enabled) override;
+    Return<void> getSupportedGestures(getSupportedGestures_cb resultCb) override;
+    Return<bool> setGestureEnabled(const ::vendor::lineage::touch::V1_0::Gesture& gesture,
+                                   bool enabled) override;
 
-    // Methods from ::android::hidl::base::V1_0::IBase follow.
+  private:
+    typedef struct {
+        int32_t keycode;
+        const char* name;
+    } GestureInfo;
+    static const std::map<int32_t, GestureInfo> kGestureInfoMap;  // id -> info
 
 };
 
 // FIXME: most likely delete, this is only for passthrough implementations
 // extern "C" ITouchscreenGesture* HIDL_FETCH_ITouchscreenGesture(const char* name);
 
-}  // namespace implementation
+}  // namespace samsung
 }  // namespace V1_0
 }  // namespace touch
 }  // namespace lineage

lineagehw/hidl/touch/service.cpp

@@ -0,0 +1,122 @@
+/*
+ * 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.samsung"
+
+#include <android-base/logging.h>
+#include <binder/ProcessState.h>
+#include <hidl/HidlTransportSupport.h>
+
+#include "GloveMode.h"
+#include "KeyDisabler.h"
+#include "StylusMode.h"
+#include "TouchscreenGesture.h"
+
+using android::hardware::configureRpcThreadpool;
+using android::hardware::joinRpcThreadpool;
+using android::sp;
+using android::status_t;
+using android::OK;
+
+using ::vendor::lineage::touch::V1_0::samsung::GloveMode;
+using ::vendor::lineage::touch::V1_0::samsung::KeyDisabler;
+using ::vendor::lineage::touch::V1_0::samsung::StylusMode;
+using ::vendor::lineage::touch::V1_0::samsung::TouchscreenGesture;
+
+int main() {
+    sp<GloveMode> gloveMode;
+    sp<KeyDisabler> keyDisabler;
+    sp<StylusMode> stylusMode;
+    sp<TouchscreenGesture> touchscreenGesture;
+    status_t status;
+
+    LOG(INFO) << "Touch HAL service is starting.";
+
+    gloveMode = new GloveMode();
+    if (gloveMode == nullptr) {
+        LOG(ERROR) << "Can not create an instance of Touch HAL GloveMode Iface, exiting.";
+        goto shutdown;
+    }
+
+    keyDisabler = new KeyDisabler();
+    if (keyDisabler == nullptr) {
+        LOG(ERROR) << "Can not create an instance of Touch HAL KeyDisabler Iface, exiting.";
+        goto shutdown;
+    }
+
+    stylusMode = new StylusMode();
+    if (stylusMode == nullptr) {
+        LOG(ERROR) << "Can not create an instance of Touch HAL StylusMode Iface, exiting.";
+        goto shutdown;
+    }
+
+    touchscreenGesture = new TouchscreenGesture();
+    if (touchscreenGesture == nullptr) {
+        LOG(ERROR) << "Can not create an instance of Touch HAL TouchscreenGesture Iface, exiting.";
+        goto shutdown;
+    }
+
+    configureRpcThreadpool(1, true /*callerWillJoin*/);
+
+    if (gloveMode->isSupported()) {
+        status = gloveMode->registerAsService();
+        if (status != OK) {
+            LOG(ERROR)
+                << "Could not register service for Touch HAL GloveMode Iface ("
+                << status << ")";
+            goto shutdown;
+        }
+    }
+
+    if (keyDisabler->isSupported()) {
+        status = keyDisabler->registerAsService();
+        if (status != OK) {
+            LOG(ERROR)
+                << "Could not register service for Touch HAL KeyDisabler Iface ("
+                << status << ")";
+            goto shutdown;
+        }
+    }
+
+    if (stylusMode->isSupported()) {
+        status = stylusMode->registerAsService();
+        if (status != OK) {
+            LOG(ERROR)
+                << "Could not register service for Touch HAL StylusMode Iface ("
+                << status << ")";
+            goto shutdown;
+        }
+    }
+
+    if (touchscreenGesture->isSupported()) {
+        status = touchscreenGesture->registerAsService();
+        if (status != OK) {
+            LOG(ERROR)
+                << "Could not register service for Touch HAL TouchscreenGesture 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;
+}

lineagehw/hidl/touch/vendor.lineage.touch@1.0-service.samsung.rc

@@ -0,0 +1,4 @@
+service vendor.touch-hal-1-0-samsung /vendor/bin/hw/vendor.lineage.touch@1.0-service.samsung
+    class hal
+    user system
+    group system