Define audio HAL
Created after hardware/audio.h with the following changes:
- names changed to satisfy HAL style guide;
- defined getter / setter methods for properties, and interfaces
for devices where needed;
- stream out callback changed to be used over RPC;
- 'dump' method is already defined by BBinder, so in HAL
interfaces it is replaced by 'debugDump'.
Note that audio data is currently transferred using byte buffer,
which is not effective due to memory copy and HwBinder transaction
involved. The transfer method will be changed to FastMessageQueue.
Bug: 30222631
Test: make
Change-Id: Ibb3bd940a91820e81d1a2b53b38d63b9e3de148a
diff --git a/audio/2.0/IPrimaryDevice.hal b/audio/2.0/IPrimaryDevice.hal
new file mode 100644
index 0000000..6beddfe
--- /dev/null
+++ b/audio/2.0/IPrimaryDevice.hal
@@ -0,0 +1,123 @@
+/*
+ * 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.
+ */
+
+package android.hardware.audio@2.0;
+
+import android.hardware.audio.common@2.0;
+import IDevice;
+
+interface IPrimaryDevice extends IDevice {
+ typedef android.hardware.audio@2.0::Result Result;
+
+ /*
+ * Sets the audio volume of a voice call.
+ *
+ * @param volume 1.0f means unity, 0.0f is zero.
+ * @return retval operation completion status.
+ */
+ setVoiceVolume(float volume) generates (Result retval);
+
+ /*
+ * This method is used to notify the HAL about audio mode changes.
+ *
+ * @param mode new mode.
+ * @return retval operation completion status.
+ */
+ setMode(AudioMode mode) generates (Result retval);
+
+ /*
+ * Gets whether BT SCO Noise Reduction and Echo Cancellation are enabled.
+ * Calling this method is equivalent to getting AUDIO_PARAMETER_KEY_BT_NREC
+ * on the legacy HAL.
+ *
+ * @return retval operation completion status.
+ * @return enabled whether BT SCO NR + EC are enabled.
+ */
+ getBtScoNrecEnabled() generates (Result retval, bool enabled);
+
+ /*
+ * Sets whether BT SCO Noise Reduction and Echo Cancellation are enabled.
+ * Calling this method is equivalent to setting AUDIO_PARAMETER_KEY_BT_NREC
+ * on the legacy HAL.
+ *
+ * @param enabled whether BT SCO NR + EC are enabled.
+ * @return retval operation completion status.
+ */
+ setBtScoNrecEnabled(bool enabled) generates (Result retval);
+
+ /*
+ * Gets whether BT SCO Wideband mode is enabled. Calling this method is
+ * equivalent to getting AUDIO_PARAMETER_KEY_BT_SCO_WB on the legacy HAL.
+ *
+ * @return retval operation completion status.
+ * @return enabled whether BT Wideband is enabled.
+ */
+ getBtScoWidebandEnabled() generates (Result retval, bool enabled);
+
+ /*
+ * Sets whether BT SCO Wideband mode is enabled. Calling this method is
+ * equivalent to setting AUDIO_PARAMETER_KEY_BT_SCO_WB on the legacy HAL.
+ *
+ * @param enabled whether BT Wideband is enabled.
+ * @return retval operation completion status.
+ */
+ setBtScoWidebandEnabled(bool enabled) generates (Result retval);
+
+ enum TtyMode {
+ OFF,
+ VCO,
+ HCO,
+ FULL
+ };
+
+ /*
+ * Gets current TTY mode selection. Calling this method is equivalent to
+ * getting AUDIO_PARAMETER_KEY_TTY_MODE on the legacy HAL.
+ *
+ * @return retval operation completion status.
+ * @return mode TTY mode.
+ */
+ getTtyMode() generates (Result retval, TtyMode mode);
+
+ /*
+ * Sets current TTY mode. Calling this method is equivalent to setting
+ * AUDIO_PARAMETER_KEY_TTY_MODE on the legacy HAL.
+ *
+ * @param mode TTY mode.
+ * @return retval operation completion status.
+ */
+ setTtyMode(TtyMode mode) generates (Result retval);
+
+ /*
+ * Gets whether Hearing Aid Compatibility - Telecoil (HAC-T) mode is
+ * enabled. Calling this method is equivalent to getting
+ * AUDIO_PARAMETER_KEY_HAC on the legacy HAL.
+ *
+ * @return retval operation completion status.
+ * @return enabled whether HAC mode is enabled.
+ */
+ getHacEnabled() generates (Result retval, bool enabled);
+
+ /*
+ * Sets whether Hearing Aid Compatibility - Telecoil (HAC-T) mode is
+ * enabled. Calling this method is equivalent to setting
+ * AUDIO_PARAMETER_KEY_HAC on the legacy HAL.
+ *
+ * @param enabled whether HAC mode is enabled.
+ * @return retval operation completion status.
+ */
+ setHacEnabled(bool enabled) generates (Result retval);
+};