blob: a75e3ddcc0d4a2b28de192b09f980596ab6bf352 [file] [log] [blame]
/*
* Copyright (C) 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 "AudioPolicyIntefaceImpl"
//#define LOG_NDEBUG 0
#include <utils/Log.h>
#include "AudioPolicyService.h"
#include "ServiceUtilities.h"
namespace android {
// ----------------------------------------------------------------------------
status_t AudioPolicyService::setDeviceConnectionState(audio_devices_t device,
audio_policy_dev_state_t state,
const char *device_address,
const char *device_name)
{
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
if (!settingsAllowed()) {
return PERMISSION_DENIED;
}
if (!audio_is_output_device(device) && !audio_is_input_device(device)) {
return BAD_VALUE;
}
if (state != AUDIO_POLICY_DEVICE_STATE_AVAILABLE &&
state != AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) {
return BAD_VALUE;
}
ALOGV("setDeviceConnectionState()");
Mutex::Autolock _l(mLock);
return mAudioPolicyManager->setDeviceConnectionState(device, state,
device_address, device_name);
}
audio_policy_dev_state_t AudioPolicyService::getDeviceConnectionState(
audio_devices_t device,
const char *device_address)
{
if (mAudioPolicyManager == NULL) {
return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE;
}
return mAudioPolicyManager->getDeviceConnectionState(device,
device_address);
}
status_t AudioPolicyService::setPhoneState(audio_mode_t state)
{
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
if (!settingsAllowed()) {
return PERMISSION_DENIED;
}
if (uint32_t(state) >= AUDIO_MODE_CNT) {
return BAD_VALUE;
}
ALOGV("setPhoneState()");
// acquire lock before calling setMode() so that setMode() + setPhoneState() are an atomic
// operation from policy manager standpoint (no other operation (e.g track start or stop)
// can be interleaved).
Mutex::Autolock _l(mLock);
// TODO: check if it is more appropriate to do it in platform specific policy manager
AudioSystem::setMode(state);
mAudioPolicyManager->setPhoneState(state);
mPhoneState = state;
return NO_ERROR;
}
audio_mode_t AudioPolicyService::getPhoneState()
{
Mutex::Autolock _l(mLock);
return mPhoneState;
}
status_t AudioPolicyService::setForceUse(audio_policy_force_use_t usage,
audio_policy_forced_cfg_t config)
{
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
if (!settingsAllowed()) {
return PERMISSION_DENIED;
}
if (usage < 0 || usage >= AUDIO_POLICY_FORCE_USE_CNT) {
return BAD_VALUE;
}
if (config < 0 || config >= AUDIO_POLICY_FORCE_CFG_CNT) {
return BAD_VALUE;
}
ALOGV("setForceUse()");
Mutex::Autolock _l(mLock);
mAudioPolicyManager->setForceUse(usage, config);
return NO_ERROR;
}
audio_policy_forced_cfg_t AudioPolicyService::getForceUse(audio_policy_force_use_t usage)
{
if (mAudioPolicyManager == NULL) {
return AUDIO_POLICY_FORCE_NONE;
}
if (usage < 0 || usage >= AUDIO_POLICY_FORCE_USE_CNT) {
return AUDIO_POLICY_FORCE_NONE;
}
return mAudioPolicyManager->getForceUse(usage);
}
audio_io_handle_t AudioPolicyService::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)
{
if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
return AUDIO_IO_HANDLE_NONE;
}
if (mAudioPolicyManager == NULL) {
return AUDIO_IO_HANDLE_NONE;
}
ALOGV("getOutput()");
Mutex::Autolock _l(mLock);
return mAudioPolicyManager->getOutput(stream, samplingRate,
format, channelMask, flags, offloadInfo);
}
status_t AudioPolicyService::getOutputForAttr(const audio_attributes_t *attr,
audio_io_handle_t *output,
audio_session_t session,
audio_stream_type_t *stream,
uid_t uid,
uint32_t samplingRate,
audio_format_t format,
audio_channel_mask_t channelMask,
audio_output_flags_t flags,
audio_port_handle_t selectedDeviceId,
const audio_offload_info_t *offloadInfo)
{
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
ALOGV("getOutput()");
Mutex::Autolock _l(mLock);
const uid_t callingUid = IPCThreadState::self()->getCallingUid();
if (!isTrustedCallingUid(callingUid) || uid == (uid_t)-1) {
ALOGW_IF(uid != (uid_t)-1 && uid != callingUid,
"%s uid %d tried to pass itself off as %d", __FUNCTION__, callingUid, uid);
uid = callingUid;
}
return mAudioPolicyManager->getOutputForAttr(attr, output, session, stream, uid, samplingRate,
format, channelMask, flags, selectedDeviceId, offloadInfo);
}
status_t AudioPolicyService::startOutput(audio_io_handle_t output,
audio_stream_type_t stream,
audio_session_t session)
{
if (uint32_t(stream) >= AUDIO_STREAM_CNT) {
return BAD_VALUE;
}
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
ALOGV("startOutput()");
sp<AudioPolicyEffects>audioPolicyEffects;
{
Mutex::Autolock _l(mLock);
audioPolicyEffects = mAudioPolicyEffects;
}
if (audioPolicyEffects != 0) {
// create audio processors according to stream
status_t status = audioPolicyEffects->addOutputSessionEffects(output, stream, session);
if (status != NO_ERROR && status != ALREADY_EXISTS) {
ALOGW("Failed to add effects on session %d", session);
}
}
Mutex::Autolock _l(mLock);
return mAudioPolicyManager->startOutput(output, stream, session);
}
status_t AudioPolicyService::stopOutput(audio_io_handle_t output,
audio_stream_type_t stream,
audio_session_t session)
{
if (uint32_t(stream) >= AUDIO_STREAM_CNT) {
return BAD_VALUE;
}
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
ALOGV("stopOutput()");
mOutputCommandThread->stopOutputCommand(output, stream, session);
return NO_ERROR;
}
status_t AudioPolicyService::doStopOutput(audio_io_handle_t output,
audio_stream_type_t stream,
audio_session_t session)
{
ALOGV("doStopOutput from tid %d", gettid());
sp<AudioPolicyEffects>audioPolicyEffects;
{
Mutex::Autolock _l(mLock);
audioPolicyEffects = mAudioPolicyEffects;
}
if (audioPolicyEffects != 0) {
// release audio processors from the stream
status_t status = audioPolicyEffects->releaseOutputSessionEffects(output, stream, session);
if (status != NO_ERROR && status != ALREADY_EXISTS) {
ALOGW("Failed to release effects on session %d", session);
}
}
Mutex::Autolock _l(mLock);
return mAudioPolicyManager->stopOutput(output, stream, session);
}
void AudioPolicyService::releaseOutput(audio_io_handle_t output,
audio_stream_type_t stream,
audio_session_t session)
{
if (mAudioPolicyManager == NULL) {
return;
}
ALOGV("releaseOutput()");
mOutputCommandThread->releaseOutputCommand(output, stream, session);
}
void AudioPolicyService::doReleaseOutput(audio_io_handle_t output,
audio_stream_type_t stream,
audio_session_t session)
{
ALOGV("doReleaseOutput from tid %d", gettid());
Mutex::Autolock _l(mLock);
mAudioPolicyManager->releaseOutput(output, stream, session);
}
status_t AudioPolicyService::getInputForAttr(const audio_attributes_t *attr,
audio_io_handle_t *input,
audio_session_t session,
pid_t pid,
uid_t uid,
uint32_t samplingRate,
audio_format_t format,
audio_channel_mask_t channelMask,
audio_input_flags_t flags,
audio_port_handle_t selectedDeviceId)
{
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
// already checked by client, but double-check in case the client wrapper is bypassed
if (attr->source >= AUDIO_SOURCE_CNT && attr->source != AUDIO_SOURCE_HOTWORD &&
attr->source != AUDIO_SOURCE_FM_TUNER) {
return BAD_VALUE;
}
if ((attr->source == AUDIO_SOURCE_HOTWORD) && !captureHotwordAllowed()) {
return BAD_VALUE;
}
sp<AudioPolicyEffects>audioPolicyEffects;
status_t status;
AudioPolicyInterface::input_type_t inputType;
bool updatePid = (pid == -1);
const uid_t callingUid = IPCThreadState::self()->getCallingUid();
if (!isTrustedCallingUid(callingUid)) {
ALOGW_IF(uid != (uid_t)-1 && uid != callingUid,
"%s uid %d tried to pass itself off as %d", __FUNCTION__, callingUid, uid);
uid = callingUid;
updatePid = true;
}
if (updatePid) {
const pid_t callingPid = IPCThreadState::self()->getCallingPid();
ALOGW_IF(pid != (pid_t)-1 && pid != callingPid,
"%s uid %d pid %d tried to pass itself off as pid %d",
__func__, callingUid, callingPid, pid);
pid = callingPid;
}
{
Mutex::Autolock _l(mLock);
// the audio_in_acoustics_t parameter is ignored by get_input()
status = mAudioPolicyManager->getInputForAttr(attr, input, session, uid,
samplingRate, format, channelMask,
flags, selectedDeviceId,
&inputType);
audioPolicyEffects = mAudioPolicyEffects;
if (status == NO_ERROR) {
// enforce permission (if any) required for each type of input
switch (inputType) {
case AudioPolicyInterface::API_INPUT_LEGACY:
break;
case AudioPolicyInterface::API_INPUT_TELEPHONY_RX:
// FIXME: use the same permission as for remote submix for now.
case AudioPolicyInterface::API_INPUT_MIX_CAPTURE:
if (!captureAudioOutputAllowed(pid, uid)) {
ALOGE("getInputForAttr() permission denied: capture not allowed");
status = PERMISSION_DENIED;
}
break;
case AudioPolicyInterface::API_INPUT_MIX_EXT_POLICY_REROUTE:
if (!modifyAudioRoutingAllowed()) {
ALOGE("getInputForAttr() permission denied: modify audio routing not allowed");
status = PERMISSION_DENIED;
}
break;
case AudioPolicyInterface::API_INPUT_INVALID:
default:
LOG_ALWAYS_FATAL("getInputForAttr() encountered an invalid input type %d",
(int)inputType);
}
}
if (status != NO_ERROR) {
if (status == PERMISSION_DENIED) {
mAudioPolicyManager->releaseInput(*input, session);
}
return status;
}
}
if (audioPolicyEffects != 0) {
// create audio pre processors according to input source
status_t status = audioPolicyEffects->addInputEffects(*input, attr->source, session);
if (status != NO_ERROR && status != ALREADY_EXISTS) {
ALOGW("Failed to add effects on input %d", *input);
}
}
return NO_ERROR;
}
status_t AudioPolicyService::startInput(audio_io_handle_t input,
audio_session_t session)
{
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
Mutex::Autolock _l(mLock);
return mAudioPolicyManager->startInput(input, session);
}
status_t AudioPolicyService::stopInput(audio_io_handle_t input,
audio_session_t session)
{
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
Mutex::Autolock _l(mLock);
return mAudioPolicyManager->stopInput(input, session);
}
void AudioPolicyService::releaseInput(audio_io_handle_t input,
audio_session_t session)
{
if (mAudioPolicyManager == NULL) {
return;
}
sp<AudioPolicyEffects>audioPolicyEffects;
{
Mutex::Autolock _l(mLock);
audioPolicyEffects = mAudioPolicyEffects;
}
if (audioPolicyEffects != 0) {
// release audio processors from the input
status_t status = audioPolicyEffects->releaseInputEffects(input);
if(status != NO_ERROR) {
ALOGW("Failed to release effects on input %d", input);
}
}
{
Mutex::Autolock _l(mLock);
mAudioPolicyManager->releaseInput(input, session);
}
}
status_t AudioPolicyService::initStreamVolume(audio_stream_type_t stream,
int indexMin,
int indexMax)
{
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
if (!settingsAllowed()) {
return PERMISSION_DENIED;
}
if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
return BAD_VALUE;
}
Mutex::Autolock _l(mLock);
mAudioPolicyManager->initStreamVolume(stream, indexMin, indexMax);
return NO_ERROR;
}
status_t AudioPolicyService::setStreamVolumeIndex(audio_stream_type_t stream,
int index,
audio_devices_t device)
{
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
if (!settingsAllowed()) {
return PERMISSION_DENIED;
}
if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
return BAD_VALUE;
}
Mutex::Autolock _l(mLock);
return mAudioPolicyManager->setStreamVolumeIndex(stream,
index,
device);
}
status_t AudioPolicyService::getStreamVolumeIndex(audio_stream_type_t stream,
int *index,
audio_devices_t device)
{
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
return BAD_VALUE;
}
Mutex::Autolock _l(mLock);
return mAudioPolicyManager->getStreamVolumeIndex(stream,
index,
device);
}
uint32_t AudioPolicyService::getStrategyForStream(audio_stream_type_t stream)
{
if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
return 0;
}
if (mAudioPolicyManager == NULL) {
return 0;
}
return mAudioPolicyManager->getStrategyForStream(stream);
}
//audio policy: use audio_device_t appropriately
audio_devices_t AudioPolicyService::getDevicesForStream(audio_stream_type_t stream)
{
if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
return AUDIO_DEVICE_NONE;
}
if (mAudioPolicyManager == NULL) {
return AUDIO_DEVICE_NONE;
}
Mutex::Autolock _l(mLock);
return mAudioPolicyManager->getDevicesForStream(stream);
}
audio_io_handle_t AudioPolicyService::getOutputForEffect(const effect_descriptor_t *desc)
{
// FIXME change return type to status_t, and return NO_INIT here
if (mAudioPolicyManager == NULL) {
return 0;
}
Mutex::Autolock _l(mLock);
return mAudioPolicyManager->getOutputForEffect(desc);
}
status_t AudioPolicyService::registerEffect(const effect_descriptor_t *desc,
audio_io_handle_t io,
uint32_t strategy,
audio_session_t session,
int id)
{
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
Mutex::Autolock _l(mEffectsLock);
return mAudioPolicyManager->registerEffect(desc, io, strategy, session, id);
}
status_t AudioPolicyService::unregisterEffect(int id)
{
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
Mutex::Autolock _l(mEffectsLock);
return mAudioPolicyManager->unregisterEffect(id);
}
status_t AudioPolicyService::setEffectEnabled(int id, bool enabled)
{
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
Mutex::Autolock _l(mEffectsLock);
return mAudioPolicyManager->setEffectEnabled(id, enabled);
}
bool AudioPolicyService::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const
{
if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
return false;
}
if (mAudioPolicyManager == NULL) {
return false;
}
Mutex::Autolock _l(mLock);
return mAudioPolicyManager->isStreamActive(stream, inPastMs);
}
bool AudioPolicyService::isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs) const
{
if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
return false;
}
if (mAudioPolicyManager == NULL) {
return false;
}
Mutex::Autolock _l(mLock);
return mAudioPolicyManager->isStreamActiveRemotely(stream, inPastMs);
}
bool AudioPolicyService::isSourceActive(audio_source_t source) const
{
if (mAudioPolicyManager == NULL) {
return false;
}
Mutex::Autolock _l(mLock);
return mAudioPolicyManager->isSourceActive(source);
}
status_t AudioPolicyService::queryDefaultPreProcessing(audio_session_t audioSession,
effect_descriptor_t *descriptors,
uint32_t *count)
{
if (mAudioPolicyManager == NULL) {
*count = 0;
return NO_INIT;
}
sp<AudioPolicyEffects>audioPolicyEffects;
{
Mutex::Autolock _l(mLock);
audioPolicyEffects = mAudioPolicyEffects;
}
if (audioPolicyEffects == 0) {
*count = 0;
return NO_INIT;
}
return audioPolicyEffects->queryDefaultInputEffects(audioSession, descriptors, count);
}
bool AudioPolicyService::isOffloadSupported(const audio_offload_info_t& info)
{
if (mAudioPolicyManager == NULL) {
ALOGV("mAudioPolicyManager == NULL");
return false;
}
Mutex::Autolock _l(mLock);
Mutex::Autolock _le(mEffectsLock); // isOffloadSupported queries for
// non-offloadable effects
return mAudioPolicyManager->isOffloadSupported(info);
}
status_t AudioPolicyService::listAudioPorts(audio_port_role_t role,
audio_port_type_t type,
unsigned int *num_ports,
struct audio_port *ports,
unsigned int *generation)
{
Mutex::Autolock _l(mLock);
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
return mAudioPolicyManager->listAudioPorts(role, type, num_ports, ports, generation);
}
status_t AudioPolicyService::getAudioPort(struct audio_port *port)
{
Mutex::Autolock _l(mLock);
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
return mAudioPolicyManager->getAudioPort(port);
}
status_t AudioPolicyService::createAudioPatch(const struct audio_patch *patch,
audio_patch_handle_t *handle)
{
Mutex::Autolock _l(mLock);
if(!modifyAudioRoutingAllowed()) {
return PERMISSION_DENIED;
}
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
return mAudioPolicyManager->createAudioPatch(patch, handle,
IPCThreadState::self()->getCallingUid());
}
status_t AudioPolicyService::releaseAudioPatch(audio_patch_handle_t handle)
{
Mutex::Autolock _l(mLock);
if(!modifyAudioRoutingAllowed()) {
return PERMISSION_DENIED;
}
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
return mAudioPolicyManager->releaseAudioPatch(handle,
IPCThreadState::self()->getCallingUid());
}
status_t AudioPolicyService::listAudioPatches(unsigned int *num_patches,
struct audio_patch *patches,
unsigned int *generation)
{
Mutex::Autolock _l(mLock);
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
return mAudioPolicyManager->listAudioPatches(num_patches, patches, generation);
}
status_t AudioPolicyService::setAudioPortConfig(const struct audio_port_config *config)
{
Mutex::Autolock _l(mLock);
if(!modifyAudioRoutingAllowed()) {
return PERMISSION_DENIED;
}
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
return mAudioPolicyManager->setAudioPortConfig(config);
}
status_t AudioPolicyService::acquireSoundTriggerSession(audio_session_t *session,
audio_io_handle_t *ioHandle,
audio_devices_t *device)
{
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
return mAudioPolicyManager->acquireSoundTriggerSession(session, ioHandle, device);
}
status_t AudioPolicyService::releaseSoundTriggerSession(audio_session_t session)
{
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
return mAudioPolicyManager->releaseSoundTriggerSession(session);
}
status_t AudioPolicyService::registerPolicyMixes(Vector<AudioMix> mixes, bool registration)
{
Mutex::Autolock _l(mLock);
if(!modifyAudioRoutingAllowed()) {
return PERMISSION_DENIED;
}
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
if (registration) {
return mAudioPolicyManager->registerPolicyMixes(mixes);
} else {
return mAudioPolicyManager->unregisterPolicyMixes(mixes);
}
}
status_t AudioPolicyService::startAudioSource(const struct audio_port_config *source,
const audio_attributes_t *attributes,
audio_io_handle_t *handle)
{
Mutex::Autolock _l(mLock);
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
return mAudioPolicyManager->startAudioSource(source, attributes, handle,
IPCThreadState::self()->getCallingUid());
}
status_t AudioPolicyService::stopAudioSource(audio_io_handle_t handle)
{
Mutex::Autolock _l(mLock);
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
return mAudioPolicyManager->stopAudioSource(handle);
}
status_t AudioPolicyService::setMasterMono(bool mono)
{
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
if (!settingsAllowed()) {
return PERMISSION_DENIED;
}
Mutex::Autolock _l(mLock);
return mAudioPolicyManager->setMasterMono(mono);
}
status_t AudioPolicyService::getMasterMono(bool *mono)
{
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}
Mutex::Autolock _l(mLock);
return mAudioPolicyManager->getMasterMono(mono);
}
}; // namespace android