Abstract away access to audio devices HAL
In this CL all direct access to audio_hw_device_t and its functions is
encapsulated within the new class DeviceHalLocal. Loading of hardware
modules is encapsulated withing DevicesFactoryHalLocal. AudioFlinger
uses interface classes DevicesFactoryHalInterface and DeviceHalInterface
to access these functions.
Bug: 30222631
Change-Id: Ic88b20c55813a24b898f4a832e082c17d81935b7
diff --git a/services/audioflinger/DeviceHalLocal.cpp b/services/audioflinger/DeviceHalLocal.cpp
new file mode 100644
index 0000000..b602f16
--- /dev/null
+++ b/services/audioflinger/DeviceHalLocal.cpp
@@ -0,0 +1,165 @@
+/*
+ * 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 "AudioFlinger::DeviceHalLocal"
+//#define LOG_NDEBUG 0
+
+#include <utils/Log.h>
+
+#include "DeviceHalLocal.h"
+
+namespace android {
+
+DeviceHalLocal::DeviceHalLocal(audio_hw_device_t *dev)
+ : mDev(dev) {
+}
+
+DeviceHalLocal::~DeviceHalLocal() {
+ int status = audio_hw_device_close(mDev);
+ ALOGW_IF(status, "Error closing audio hw device %p: %s", mDev, strerror(-status));
+ mDev = 0;
+}
+
+status_t DeviceHalLocal::getSupportedDevices(uint32_t *devices) {
+ if (mDev->get_supported_devices == NULL) return INVALID_OPERATION;
+ *devices = mDev->get_supported_devices(mDev);
+ return OK;
+}
+
+status_t DeviceHalLocal::getVersion(uint32_t *version) {
+ *version = mDev->common.version;
+ return OK;
+}
+
+status_t DeviceHalLocal::initCheck() {
+ return mDev->init_check(mDev);
+}
+
+status_t DeviceHalLocal::setVoiceVolume(float volume) {
+ return mDev->set_voice_volume(mDev, volume);
+}
+
+status_t DeviceHalLocal::setMasterVolume(float volume) {
+ if (mDev->set_master_volume == NULL) return INVALID_OPERATION;
+ return mDev->set_master_volume(mDev, volume);
+}
+
+status_t DeviceHalLocal::getMasterVolume(float *volume) {
+ if (mDev->get_master_volume == NULL) return INVALID_OPERATION;
+ return mDev->get_master_volume(mDev, volume);
+}
+
+status_t DeviceHalLocal::setMode(audio_mode_t mode) {
+ return mDev->set_mode(mDev, mode);
+}
+
+status_t DeviceHalLocal::setMicMute(bool state) {
+ return mDev->set_mic_mute(mDev, state);
+}
+
+status_t DeviceHalLocal::getMicMute(bool *state) {
+ return mDev->get_mic_mute(mDev, state);
+}
+
+status_t DeviceHalLocal::setMasterMute(bool state) {
+ if (mDev->set_master_mute == NULL) return INVALID_OPERATION;
+ return mDev->set_master_mute(mDev, state);
+}
+
+status_t DeviceHalLocal::getMasterMute(bool *state) {
+ if (mDev->get_master_mute == NULL) return INVALID_OPERATION;
+ return mDev->get_master_mute(mDev, state);
+}
+
+status_t DeviceHalLocal::setParameters(const String8& kvPairs) {
+ return mDev->set_parameters(mDev, kvPairs.string());
+}
+
+status_t DeviceHalLocal::getParameters(const String8& keys, String8 *values) {
+ char *c_values = mDev->get_parameters(mDev, keys.string());
+ if (c_values != NULL) {
+ values->setTo(c_values);
+ free(c_values);
+ } else {
+ values->clear();
+ }
+ return OK;
+}
+
+status_t DeviceHalLocal::getInputBufferSize(
+ const struct audio_config *config, size_t *size) {
+ *size = mDev->get_input_buffer_size(mDev, config);
+ return OK;
+}
+
+status_t DeviceHalLocal::createAudioPatch(
+ unsigned int num_sources,
+ const struct audio_port_config *sources,
+ unsigned int num_sinks,
+ const struct audio_port_config *sinks,
+ audio_patch_handle_t *patch) {
+ return mDev->create_audio_patch(mDev, num_sources, sources, num_sinks, sinks, patch);
+}
+
+status_t DeviceHalLocal::releaseAudioPatch(audio_patch_handle_t patch) {
+ return mDev->release_audio_patch(mDev, patch);
+}
+
+status_t DeviceHalLocal::getAudioPort(struct audio_port *port) {
+ return mDev->get_audio_port(mDev, port);
+}
+
+status_t DeviceHalLocal::setAudioPortConfig(const struct audio_port_config *config) {
+ return mDev->set_audio_port_config(mDev, config);
+}
+
+status_t DeviceHalLocal::dump(int fd) {
+ return mDev->dump(mDev, fd);
+}
+
+status_t DeviceHalLocal::openOutputStream(
+ audio_io_handle_t handle,
+ audio_devices_t devices,
+ audio_output_flags_t flags,
+ struct audio_config *config,
+ const char *address,
+ struct audio_stream_out **stream_out) {
+ return mDev->open_output_stream(mDev, handle, devices, flags, config, stream_out, address);
+}
+
+status_t DeviceHalLocal::closeOutputStream(struct audio_stream_out *stream_out) {
+ mDev->close_output_stream(mDev, stream_out);
+ return OK;
+}
+
+status_t DeviceHalLocal::openInputStream(
+ audio_io_handle_t handle,
+ audio_devices_t devices,
+ struct audio_config *config,
+ audio_input_flags_t flags,
+ const char *address,
+ audio_source_t source,
+ struct audio_stream_in **stream_in) {
+ return mDev->open_input_stream(
+ mDev, handle, devices, config, stream_in, flags, address, source);
+}
+
+status_t DeviceHalLocal::closeInputStream(struct audio_stream_in *stream_in) {
+ mDev->close_input_stream(mDev, stream_in);
+ return OK;
+}
+
+} // namespace android