Add default implementation of Vibrator HAL

Test: Builds, boots, vibrator works on bullhead
Change-Id: I9c7de913d1b565bdc46a3b99a799fd8ba09b06a4
diff --git a/vibrator/1.0/default/Vibrator.cpp b/vibrator/1.0/default/Vibrator.cpp
new file mode 100644
index 0000000..4cd3b30
--- /dev/null
+++ b/vibrator/1.0/default/Vibrator.cpp
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2016 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 "VibratorService"
+
+#include <hardware/hardware.h>
+#include <hardware/vibrator.h>
+#include "Vibrator.h"
+
+namespace android {
+namespace hardware {
+namespace vibrator {
+namespace V1_0 {
+namespace implementation {
+
+Vibrator::Vibrator(vibrator_device_t *device) : mDevice(device) {}
+
+// Methods from ::android::hardware::vibrator::V1_0::IVibrator follow.
+Return<Status> Vibrator::on(uint32_t timeout_ms) {
+    int32_t ret = mDevice->vibrator_on(mDevice, timeout_ms);
+    if (ret != 0) {
+        ALOGE("on command failed : %s", strerror(-ret));
+        return Status::ERR;
+    }
+    return Status::OK;
+}
+
+Return<Status> Vibrator::off()  {
+    int32_t ret = mDevice->vibrator_off(mDevice);
+    if (ret != 0) {
+        ALOGE("off command failed : %s", strerror(-ret));
+        return Status::ERR;
+    }
+    return Status::OK;
+}
+
+IVibrator* HIDL_FETCH_IVibrator(const char *hal) {
+    vibrator_device_t *vib_device;
+    const hw_module_t *hw_module = nullptr;
+
+    int ret = hw_get_module(hal, &hw_module);
+    if (ret == 0) {
+        ret = vibrator_open(hw_module, &vib_device);
+        if (ret != 0) {
+            ALOGE("vibrator_open %s failed: %d", hal, ret);
+        }
+    } else {
+        ALOGE("hw_get_module %s failed: %d", hal, ret);
+    }
+
+    if (ret == 0) {
+        return new Vibrator(vib_device);
+    } else {
+        ALOGE("Passthrough failed to open legacy HAL.");
+        return nullptr;
+    }
+}
+
+} // namespace implementation
+}  // namespace V1_0
+}  // namespace vibrator
+}  // namespace hardware
+}  // namespace android