/*
**
** Copyright 2009, 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 "IAudioPolicyService"
#include <utils/Log.h>
#include <stdint.h>
#include <sys/types.h>
#include <binder/Parcel.h>
#include <media/IAudioPolicyService.h>
#include <system/audio.h>
namespace android {
enum {
SET_DEVICE_CONNECTION_STATE = IBinder::FIRST_CALL_TRANSACTION,
GET_DEVICE_CONNECTION_STATE,
SET_PHONE_STATE,
SET_RINGER_MODE, // reserved, no longer used
SET_FORCE_USE,
GET_FORCE_USE,
GET_OUTPUT,
START_OUTPUT,
STOP_OUTPUT,
RELEASE_OUTPUT,
GET_INPUT,
START_INPUT,
STOP_INPUT,
RELEASE_INPUT,
INIT_STREAM_VOLUME,
SET_STREAM_VOLUME,
GET_STREAM_VOLUME,
GET_STRATEGY_FOR_STREAM,
GET_OUTPUT_FOR_EFFECT,
REGISTER_EFFECT,
UNREGISTER_EFFECT,
IS_STREAM_ACTIVE,
IS_SOURCE_ACTIVE,
GET_DEVICES_FOR_STREAM,
QUERY_DEFAULT_PRE_PROCESSING,
SET_EFFECT_ENABLED,
IS_STREAM_ACTIVE_REMOTELY,
IS_OFFLOAD_SUPPORTED
};
class BpAudioPolicyService : public BpInterface<IAudioPolicyService>
{
public:
BpAudioPolicyService(const sp<IBinder>& impl)
: BpInterface<IAudioPolicyService>(impl)
{
}
virtual status_t setDeviceConnectionState(
audio_devices_t device,
audio_policy_dev_state_t state,
const char *device_address)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(static_cast <uint32_t>(device));
data.writeInt32(static_cast <uint32_t>(state));
data.writeCString(device_address);
remote()->transact(SET_DEVICE_CONNECTION_STATE, data, &reply);
return static_cast <status_t> (reply.readInt32());
}
virtual audio_policy_dev_state_t getDeviceConnectionState(
audio_devices_t device,
const char *device_address)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(static_cast <uint32_t>(device));
data.writeCString(device_address);
remote()->transact(GET_DEVICE_CONNECTION_STATE, data, &reply);
return static_cast <audio_policy_dev_state_t>(reply.readInt32());
}
virtual status_t setPhoneState(audio_mode_t state)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(state);
remote()->transact(SET_PHONE_STATE, data, &reply);
return static_cast <status_t> (reply.readInt32());
}
virtual status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(static_cast <uint32_t>(usage));
data.writeInt32(static_cast <uint32_t>(config));
remote()->transact(SET_FORCE_USE, data, &reply);
return static_cast <status_t> (reply.readInt32());
}
virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(static_cast <uint32_t>(usage));
remote()->transact(GET_FORCE_USE, data, &reply);
return static_cast <audio_policy_forced_cfg_t> (reply.readInt32());
}
virtual audio_io_handle_t getOutput(
audio_stream_type_t stream,
uint32_t samplingRate,
audio_format_t format,
audio_channel_mask_t channelMask,
audio_output_flags_t flags,
const audio_offload_info_t *offloadInfo)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(static_cast <uint32_t>(stream));
data.writeInt32(samplingRate);
data.writeInt32(static_cast <uint32_t>(format));
data.writeInt32(channelMask);
data.writeInt32(static_cast <uint32_t>(flags));
if (offloadInfo == NULL) {
data.writeInt32(0);
} else {
data.writeInt32(1);
data.write(offloadInfo, sizeof(audio_offload_info_t));
}
remote()->transact(GET_OUTPUT, data, &reply);
return static_cast <audio_io_handle_t> (reply.readInt32());
}
virtual status_t startOutput(audio_io_handle_t output,
audio_stream_type_t stream,
int session)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(output);
data.writeInt32((int32_t) stream);
data.writeInt32(session);
remote()->transact(START_OUTPUT, data, &reply);
return static_cast <status_t> (reply.readInt32());
}
virtual status_t stopOutput(audio_io_handle_t output,
audio_stream_type_t stream,
int session)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(output);
data.writeInt32((int32_t) stream);
data.writeInt32(session);
remote()->transact(STOP_OUTPUT, data, &reply);
return static_cast <status_t> (reply.readInt32());
}
virtual void releaseOutput(audio_io_handle_t output)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(output);
remote()->transact(RELEASE_OUTPUT, data, &reply);
}
virtual audio_io_handle_t getInput(
audio_source_t inputSource,
uint32_t samplingRate,
audio_format_t format,
audio_channel_mask_t channelMask,
int audioSession)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32((int32_t) inputSource);
data.writeInt32(samplingRate);
data.writeInt32(static_cast <uint32_t>(format));
data.writeInt32(channelMask);
data.writeInt32(audioSession);
remote()->transact(GET_INPUT, data, &reply);
return static_cast <audio_io_handle_t> (reply.readInt32());
}
virtual status_t startInput(audio_io_handle_t input)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(input);
remote()->transact(START_INPUT, data, &reply);
return static_cast <status_t> (reply.readInt32());
}
virtual status_t stopInput(audio_io_handle_t input)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(input);
remote()->transact(STOP_INPUT, data, &reply);
return static_cast <status_t> (reply.readInt32());
}
virtual void releaseInput(audio_io_handle_t input)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(input);
remote()->transact(RELEASE_INPUT, data, &reply);
}
virtual status_t initStreamVolume(audio_stream_type_t stream,
int indexMin,
int indexMax)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(static_cast <uint32_t>(stream));
data.writeInt32(indexMin);
data.writeInt32(indexMax);
remote()->transact(INIT_STREAM_VOLUME, data, &reply);
return static_cast <status_t> (reply.readInt32());
}
virtual status_t setStreamVolumeIndex(audio_stream_type_t stream,
int index,
audio_devices_t device)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(static_cast <uint32_t>(stream));
data.writeInt32(index);
data.writeInt32(static_cast <uint32_t>(device));
remote()->transact(SET_STREAM_VOLUME, data, &reply);
return static_cast <status_t> (reply.readInt32());
}
virtual status_t getStreamVolumeIndex(audio_stream_type_t stream,
int *index,
audio_devices_t device)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(static_cast <uint32_t>(stream));
data.writeInt32(static_cast <uint32_t>(device));
remote()->transact(GET_STREAM_VOLUME, data, &reply);
int lIndex = reply.readInt32();
if (index) *index = lIndex;
return static_cast <status_t> (reply.readInt32());
}
virtual uint32_t getStrategyForStream(audio_stream_type_t stream)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(static_cast <uint32_t>(stream));
remote()->transact(GET_STRATEGY_FOR_STREAM, data, &reply);
return reply.readInt32();
}
virtual audio_devices_t getDevicesForStream(audio_stream_type_t stream)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(static_cast <uint32_t>(stream));
remote()->transact(GET_DEVICES_FOR_STREAM, data, &reply);
return (audio_devices_t) reply.readInt32();
}
virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.write(desc, sizeof(effect_descriptor_t));
remote()->transact(GET_OUTPUT_FOR_EFFECT, data, &reply);
return static_cast <audio_io_handle_t> (reply.readInt32());
}
virtual status_t registerEffect(const effect_descriptor_t *desc,
audio_io_handle_t io,
uint32_t strategy,
int session,
int id)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.write(desc, sizeof(effect_descriptor_t));
data.writeInt32(io);
data.writeInt32(strategy);
data.writeInt32(session);
data.writeInt32(id);
remote()->transact(REGISTER_EFFECT, data, &reply);
return static_cast <status_t> (reply.readInt32());
}
virtual status_t unregisterEffect(int id)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(id);
remote()->transact(UNREGISTER_EFFECT, data, &reply);
return static_cast <status_t> (reply.readInt32());
}
virtual status_t setEffectEnabled(int id, bool enabled)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(id);
data.writeInt32(enabled);
remote()->transact(SET_EFFECT_ENABLED, data, &reply);
return static_cast <status_t> (reply.readInt32());
}
virtual bool isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32((int32_t) stream);
data.writeInt32(inPastMs);
remote()->transact(IS_STREAM_ACTIVE, data, &reply);
return reply.readInt32();
}
virtual bool isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs) const
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32((int32_t) stream);
data.writeInt32(inPastMs);
remote()->transact(IS_STREAM_ACTIVE_REMOTELY, data, &reply);
return reply.readInt32();
}
virtual bool isSourceActive(audio_source_t source) const
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32((int32_t) source);
remote()->transact(IS_SOURCE_ACTIVE, data, &reply);
return reply.readInt32();
}
virtual status_t queryDefaultPreProcessing(int audioSession,
effect_descriptor_t *descriptors,
uint32_t *count)
{
if (descriptors == NULL || count == NULL) {
return BAD_VALUE;
}
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.writeInt32(audioSession);
data.writeInt32(*count);
status_t status = remote()->transact(QUERY_DEFAULT_PRE_PROCESSING, data, &reply);
if (status != NO_ERROR) {
return status;
}
status = static_cast <status_t> (reply.readInt32());
uint32_t retCount = reply.readInt32();
if (retCount != 0) {
uint32_t numDesc = (retCount < *count) ? retCount : *count;
reply.read(descriptors, sizeof(effect_descriptor_t) * numDesc);
}
*count = retCount;
return status;
}
virtual bool isOffloadSupported(const audio_offload_info_t& info)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
data.write(&info, sizeof(audio_offload_info_t));
remote()->transact(IS_OFFLOAD_SUPPORTED, data, &reply);
return reply.readInt32(); }
};
IMPLEMENT_META_INTERFACE(AudioPolicyService, "android.media.IAudioPolicyService");
// ----------------------------------------------------------------------
status_t BnAudioPolicyService::onTransact(
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
{
switch (code) {
case SET_DEVICE_CONNECTION_STATE: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_devices_t device =
static_cast <audio_devices_t>(data.readInt32());
audio_policy_dev_state_t state =
static_cast <audio_policy_dev_state_t>(data.readInt32());
const char *device_address = data.readCString();
reply->writeInt32(static_cast<uint32_t> (setDeviceConnectionState(device,
state,
device_address)));
return NO_ERROR;
} break;
case GET_DEVICE_CONNECTION_STATE: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_devices_t device =
static_cast<audio_devices_t> (data.readInt32());
const char *device_address = data.readCString();
reply->writeInt32(static_cast<uint32_t> (getDeviceConnectionState(device,
device_address)));
return NO_ERROR;
} break;
case SET_PHONE_STATE: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
reply->writeInt32(static_cast <uint32_t>(setPhoneState(
(audio_mode_t) data.readInt32())));
return NO_ERROR;
} break;
case SET_FORCE_USE: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_policy_force_use_t usage = static_cast <audio_policy_force_use_t>(
data.readInt32());
audio_policy_forced_cfg_t config =
static_cast <audio_policy_forced_cfg_t>(data.readInt32());
reply->writeInt32(static_cast <uint32_t>(setForceUse(usage, config)));
return NO_ERROR;
} break;
case GET_FORCE_USE: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_policy_force_use_t usage = static_cast <audio_policy_force_use_t>(
data.readInt32());
reply->writeInt32(static_cast <uint32_t>(getForceUse(usage)));
return NO_ERROR;
} break;
case GET_OUTPUT: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_stream_type_t stream =
static_cast <audio_stream_type_t>(data.readInt32());
uint32_t samplingRate = data.readInt32();
audio_format_t format = (audio_format_t) data.readInt32();
audio_channel_mask_t channelMask = data.readInt32();
audio_output_flags_t flags =
static_cast <audio_output_flags_t>(data.readInt32());
bool hasOffloadInfo = data.readInt32() != 0;
audio_offload_info_t offloadInfo;
if (hasOffloadInfo) {
data.read(&offloadInfo, sizeof(audio_offload_info_t));
}
audio_io_handle_t output = getOutput(stream,
samplingRate,
format,
channelMask,
flags,
hasOffloadInfo ? &offloadInfo : NULL);
reply->writeInt32(static_cast <int>(output));
return NO_ERROR;
} break;
case START_OUTPUT: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_io_handle_t output = static_cast <audio_io_handle_t>(data.readInt32());
uint32_t stream = data.readInt32();
int session = data.readInt32();
reply->writeInt32(static_cast <uint32_t>(startOutput(output,
(audio_stream_type_t)stream,
session)));
return NO_ERROR;
} break;
case STOP_OUTPUT: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_io_handle_t output = static_cast <audio_io_handle_t>(data.readInt32());
uint32_t stream = data.readInt32();
int session = data.readInt32();
reply->writeInt32(static_cast <uint32_t>(stopOutput(output,
(audio_stream_type_t)stream,
session)));
return NO_ERROR;
} break;
case RELEASE_OUTPUT: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_io_handle_t output = static_cast <audio_io_handle_t>(data.readInt32());
releaseOutput(output);
return NO_ERROR;
} break;
case GET_INPUT: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_source_t inputSource = (audio_source_t) data.readInt32();
uint32_t samplingRate = data.readInt32();
audio_format_t format = (audio_format_t) data.readInt32();
audio_channel_mask_t channelMask = data.readInt32();
int audioSession = data.readInt32();
audio_io_handle_t input = getInput(inputSource,
samplingRate,
format,
channelMask,
audioSession);
reply->writeInt32(static_cast <int>(input));
return NO_ERROR;
} break;
case START_INPUT: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_io_handle_t input = static_cast <audio_io_handle_t>(data.readInt32());
reply->writeInt32(static_cast <uint32_t>(startInput(input)));
return NO_ERROR;
} break;
case STOP_INPUT: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_io_handle_t input = static_cast <audio_io_handle_t>(data.readInt32());
reply->writeInt32(static_cast <uint32_t>(stopInput(input)));
return NO_ERROR;
} break;
case RELEASE_INPUT: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_io_handle_t input = static_cast <audio_io_handle_t>(data.readInt32());
releaseInput(input);
return NO_ERROR;
} break;
case INIT_STREAM_VOLUME: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_stream_type_t stream =
static_cast <audio_stream_type_t>(data.readInt32());
int indexMin = data.readInt32();
int indexMax = data.readInt32();
reply->writeInt32(static_cast <uint32_t>(initStreamVolume(stream, indexMin,indexMax)));
return NO_ERROR;
} break;
case SET_STREAM_VOLUME: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_stream_type_t stream =
static_cast <audio_stream_type_t>(data.readInt32());
int index = data.readInt32();
audio_devices_t device = static_cast <audio_devices_t>(data.readInt32());
reply->writeInt32(static_cast <uint32_t>(setStreamVolumeIndex(stream,
index,
device)));
return NO_ERROR;
} break;
case GET_STREAM_VOLUME: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_stream_type_t stream =
static_cast <audio_stream_type_t>(data.readInt32());
audio_devices_t device = static_cast <audio_devices_t>(data.readInt32());
int index;
status_t status = getStreamVolumeIndex(stream, &index, device);
reply->writeInt32(index);
reply->writeInt32(static_cast <uint32_t>(status));
return NO_ERROR;
} break;
case GET_STRATEGY_FOR_STREAM: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_stream_type_t stream =
static_cast <audio_stream_type_t>(data.readInt32());
reply->writeInt32(getStrategyForStream(stream));
return NO_ERROR;
} break;
case GET_DEVICES_FOR_STREAM: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_stream_type_t stream =
static_cast <audio_stream_type_t>(data.readInt32());
reply->writeInt32(static_cast <int>(getDevicesForStream(stream)));
return NO_ERROR;
} break;
case GET_OUTPUT_FOR_EFFECT: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
effect_descriptor_t desc;
data.read(&desc, sizeof(effect_descriptor_t));
audio_io_handle_t output = getOutputForEffect(&desc);
reply->writeInt32(static_cast <int>(output));
return NO_ERROR;
} break;
case REGISTER_EFFECT: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
effect_descriptor_t desc;
data.read(&desc, sizeof(effect_descriptor_t));
audio_io_handle_t io = data.readInt32();
uint32_t strategy = data.readInt32();
int session = data.readInt32();
int id = data.readInt32();
reply->writeInt32(static_cast <int32_t>(registerEffect(&desc,
io,
strategy,
session,
id)));
return NO_ERROR;
} break;
case UNREGISTER_EFFECT: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
int id = data.readInt32();
reply->writeInt32(static_cast <int32_t>(unregisterEffect(id)));
return NO_ERROR;
} break;
case SET_EFFECT_ENABLED: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
int id = data.readInt32();
bool enabled = static_cast <bool>(data.readInt32());
reply->writeInt32(static_cast <int32_t>(setEffectEnabled(id, enabled)));
return NO_ERROR;
} break;
case IS_STREAM_ACTIVE: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_stream_type_t stream = (audio_stream_type_t) data.readInt32();
uint32_t inPastMs = (uint32_t)data.readInt32();
reply->writeInt32( isStreamActive((audio_stream_type_t) stream, inPastMs) );
return NO_ERROR;
} break;
case IS_STREAM_ACTIVE_REMOTELY: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_stream_type_t stream = (audio_stream_type_t) data.readInt32();
uint32_t inPastMs = (uint32_t)data.readInt32();
reply->writeInt32( isStreamActiveRemotely((audio_stream_type_t) stream, inPastMs) );
return NO_ERROR;
} break;
case IS_SOURCE_ACTIVE: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_source_t source = (audio_source_t) data.readInt32();
reply->writeInt32( isSourceActive(source));
return NO_ERROR;
}
case QUERY_DEFAULT_PRE_PROCESSING: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
int audioSession = data.readInt32();
uint32_t count = data.readInt32();
uint32_t retCount = count;
effect_descriptor_t *descriptors =
(effect_descriptor_t *)new char[count * sizeof(effect_descriptor_t)];
status_t status = queryDefaultPreProcessing(audioSession, descriptors, &retCount);
reply->writeInt32(status);
if (status != NO_ERROR && status != NO_MEMORY) {
retCount = 0;
}
reply->writeInt32(retCount);
if (retCount) {
if (retCount < count) {
count = retCount;
}
reply->write(descriptors, sizeof(effect_descriptor_t) * count);
}
delete[] descriptors;
return status;
}
case IS_OFFLOAD_SUPPORTED: {
CHECK_INTERFACE(IAudioPolicyService, data, reply);
audio_offload_info_t info;
data.read(&info, sizeof(audio_offload_info_t));
bool isSupported = isOffloadSupported(info);
reply->writeInt32(isSupported);
return NO_ERROR;
}
default:
return BBinder::onTransact(code, data, reply, flags);
}
}
// ----------------------------------------------------------------------------
}; // namespace android