1 files changed, 112 insertions, 0 deletions
diff --git a/hal/gonk/GonkSensorsHelpers.cpp b/hal/gonk/GonkSensorsHelpers.cpp
new file mode 100644
index 000000000..ccc940c7c
--- /dev/null
+++ b/hal/gonk/GonkSensorsHelpers.cpp
@@ -0,0 +1,112 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "GonkSensorsHelpers.h"
+
+namespace mozilla {
+namespace hal {
+
+//
+// Unpacking
+//
+
+nsresult
+UnpackPDU(DaemonSocketPDU& aPDU, SensorsEvent& aOut)
+{
+  nsresult rv = UnpackPDU(aPDU, aOut.mType);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+  rv = UnpackPDU(aPDU, aOut.mTimestamp);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+  rv = UnpackPDU(aPDU, aOut.mStatus);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  size_t i = 0;
+
+  switch (aOut.mType) {
+    case SENSORS_TYPE_MAGNETIC_FIELD_UNCALIBRATED:
+    case SENSORS_TYPE_GYROSCOPE_UNCALIBRATED:
+      /* 6 data values */
+      rv = UnpackPDU(aPDU, aOut.mData.mFloat[i++]);
+      if (NS_FAILED(rv)) {
+        return rv;
+      }
+      /* fall through */
+    case SENSORS_TYPE_ROTATION_VECTOR:
+    case SENSORS_TYPE_GAME_ROTATION_VECTOR:
+    case SENSORS_TYPE_GEOMAGNETIC_ROTATION_VECTOR:
+      /* 5 data values */
+      rv = UnpackPDU(aPDU, aOut.mData.mFloat[i++]);
+      if (NS_FAILED(rv)) {
+        return rv;
+      }
+      rv = UnpackPDU(aPDU, aOut.mData.mFloat[i++]);
+      if (NS_FAILED(rv)) {
+        return rv;
+      }
+      /* fall through */
+    case SENSORS_TYPE_ACCELEROMETER:
+    case SENSORS_TYPE_GEOMAGNETIC_FIELD:
+    case SENSORS_TYPE_ORIENTATION:
+    case SENSORS_TYPE_GYROSCOPE:
+    case SENSORS_TYPE_GRAVITY:
+    case SENSORS_TYPE_LINEAR_ACCELERATION:
+      /* 3 data values */
+      rv = UnpackPDU(aPDU, aOut.mData.mFloat[i++]);
+      if (NS_FAILED(rv)) {
+        return rv;
+      }
+      rv = UnpackPDU(aPDU, aOut.mData.mFloat[i++]);
+      if (NS_FAILED(rv)) {
+        return rv;
+      }
+      /* fall through */
+    case SENSORS_TYPE_LIGHT:
+    case SENSORS_TYPE_PRESSURE:
+    case SENSORS_TYPE_TEMPERATURE:
+    case SENSORS_TYPE_PROXIMITY:
+    case SENSORS_TYPE_RELATIVE_HUMIDITY:
+    case SENSORS_TYPE_AMBIENT_TEMPERATURE:
+    case SENSORS_TYPE_HEART_RATE:
+    case SENSORS_TYPE_TILT_DETECTOR:
+    case SENSORS_TYPE_WAKE_GESTURE:
+    case SENSORS_TYPE_GLANCE_GESTURE:
+    case SENSORS_TYPE_PICK_UP_GESTURE:
+    case SENSORS_TYPE_WRIST_TILT_GESTURE:
+    case SENSORS_TYPE_SIGNIFICANT_MOTION:
+    case SENSORS_TYPE_STEP_DETECTED:
+      /* 1 data value */
+      rv = UnpackPDU(aPDU, aOut.mData.mFloat[i++]);
+      if (NS_FAILED(rv)) {
+        return rv;
+      }
+      break;
+    case SENSORS_TYPE_STEP_COUNTER:
+      /* 1 data value */
+      rv = UnpackPDU(aPDU, aOut.mData.mUint[0]);
+      if (NS_FAILED(rv)) {
+        return rv;
+      }
+      break;
+    default:
+      if (MOZ_HAL_IPC_UNPACK_WARN_IF(true, SensorsEvent)) {
+        return NS_ERROR_ILLEGAL_VALUE;
+      }
+  }
+  rv = UnpackPDU(aPDU, aOut.mDeliveryMode);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+  return NS_OK;
+}
+
+} // namespace hal
+} // namespace mozilla