Add Audio HAL

The Audio hal has been tested with 4.4 kernel. The
HAL fails to work whenever there is DMA err due to
which audio is working occassionally with the HAL.

Change-Id: I6e99225bd3edb249b9c01848f5df5aa20a91ed35
Signed-off-by: Vishal Bhoj <vishal.bhoj@linaro.org>
diff --git a/audio/Android.mk b/audio/Android.mk
new file mode 100644
index 0000000..e909f2f
--- /dev/null
+++ b/audio/Android.mk
@@ -0,0 +1,37 @@
+# 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.
+
+LOCAL_PATH := $(call my-dir)
+
+# The default audio HAL module, which is a stub, that is loaded if no other
+# device specific modules are present. The exact load order can be seen in
+# libhardware/hardware.c
+#
+# The format of the name is audio.<type>.<hardware/etc>.so where the only
+# required type is 'primary'. Other possibilites are 'a2dp', 'usb', etc.
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := audio.primary.hikey
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_SRC_FILES := audio_hw.c
+LOCAL_SHARED_LIBRARIES := liblog libcutils libtinyalsa
+LOCAL_CFLAGS := -Wno-unused-parameter
+LOCAL_C_INCLUDES += \
+        external/tinyalsa/include \
+        external/expat/lib \
+        system/media/audio_utils/include \
+        system/media/audio_effects/include
+
+include $(BUILD_SHARED_LIBRARY)
+