HID dynamic sensor: add support to three types of sensor

Implemented HID dynamic sensor using linux hidraw driver and
HidUtils. Support the following cases:

1) HID Sensor spec defined accelerometer, gyroscope, magnetometer
   and orientation (quaternion).
2) Android defined type sensors (HID sensor custom type): ambient
   temperature, barometer, light and heart rate sensor.
3) Android custom type sensor (based on HID sensor custom type).

Test: run tests/examples in test/
Test: test with a USB HID hardware (launchpad sensor) and marlin
Bug: 37482951
Bug: 31026607
Change-Id: I9d679fb34d15324a9df1cf19647ea638fd1a0e68

1 files changed, 71 insertions, 0 deletions

diff --git a/modules/sensors/dynamic_sensor/HidRawSensorDaemon.cpp b/modules/sensors/dynamic_sensor/HidRawSensorDaemon.cpp
new file mode 100644
index 00000000..6bf34bc8
--- /dev/null
+++ b/modules/sensors/dynamic_sensor/HidRawSensorDaemon.cpp
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2017 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.
+ */
+#include "HidRawSensorDaemon.h"
+#include "ConnectionDetector.h"
+#include "DynamicSensorManager.h"
+#include "HidRawSensorDevice.h"
+
+#include <utils/Log.h>
+#include <utils/SystemClock.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <iomanip>
+#include <sstream>
+
+#define DEV_PATH                "/dev/"
+#define DEV_NAME_REGEX          "^hidraw[0-9]+$"
+
+namespace android {
+namespace SensorHalExt {
+
+HidRawSensorDaemon::HidRawSensorDaemon(DynamicSensorManager& manager)
+        : BaseDynamicSensorDaemon(manager) {
+    mDetector = new FileConnectionDetector(
+            this, std::string(DEV_PATH), std::string(DEV_NAME_REGEX));
+}
+
+BaseSensorVector HidRawSensorDaemon::createSensor(const std::string &deviceKey) {
+    BaseSensorVector ret;
+    sp<HidRawSensorDevice> device(HidRawSensorDevice::create(deviceKey));
+
+    if (device != nullptr) {
+        ALOGV("created HidRawSensorDevice(%p) successfully on device %s contains %zu sensors",
+              device.get(), deviceKey.c_str(), device->getSensors().size());
+
+        // convert type
+        for (auto &i : device->getSensors()) {
+            ret.push_back(i);
+        }
+        mHidRawSensorDevices.emplace(deviceKey, device);
+    } else {
+        ALOGE("failed to create HidRawSensorDevice object");
+    }
+
+    ALOGE("return %zu sensors", ret.size());
+    return ret;
+}
+
+void HidRawSensorDaemon::removeSensor(const std::string &deviceKey) {
+    mHidRawSensorDevices.erase(deviceKey);
+}
+
+} // namespace SensorHalExt
+} // namespace android
+