1 /* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_IAUDIOPOLICYSERVICE_H 18 #define ANDROID_IAUDIOPOLICYSERVICE_H 19 20 #include <stdint.h> 21 #include <sys/types.h> 22 #include <unistd.h> 23 #include <utils/RefBase.h> 24 #include <utils/Errors.h> 25 #include <binder/IInterface.h> 26 #include <media/AudioDeviceTypeAddr.h> 27 #include <media/AudioSystem.h> 28 #include <media/AudioPolicy.h> 29 #include <media/IAudioPolicyServiceClient.h> 30 #include <system/audio_policy.h> 31 #include <vector> 32 33 namespace android { 34 namespace media { 35 // Must be pre-declared, or else there isn't a good way to generate a header 36 // library. 37 class ICaptureStateListener; 38 } 39 40 // ---------------------------------------------------------------------------- 41 42 class IAudioPolicyService : public IInterface 43 { 44 public: 45 DECLARE_META_INTERFACE(AudioPolicyService); 46 47 // 48 // IAudioPolicyService interface (see AudioPolicyInterface for method descriptions) 49 // 50 virtual void onNewAudioModulesAvailable() = 0; 51 virtual status_t setDeviceConnectionState(audio_devices_t device, 52 audio_policy_dev_state_t state, 53 const char *device_address, 54 const char *device_name, 55 audio_format_t encodedFormat) = 0; 56 virtual audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device, 57 const char *device_address) = 0; 58 virtual status_t handleDeviceConfigChange(audio_devices_t device, 59 const char *device_address, 60 const char *device_name, 61 audio_format_t encodedFormat) = 0; 62 virtual status_t setPhoneState(audio_mode_t state, uid_t uid) = 0; 63 virtual status_t setForceUse(audio_policy_force_use_t usage, 64 audio_policy_forced_cfg_t config) = 0; 65 virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage) = 0; 66 virtual audio_io_handle_t getOutput(audio_stream_type_t stream) = 0; 67 virtual status_t getOutputForAttr(audio_attributes_t *attr, 68 audio_io_handle_t *output, 69 audio_session_t session, 70 audio_stream_type_t *stream, 71 pid_t pid, 72 uid_t uid, 73 const audio_config_t *config, 74 audio_output_flags_t flags, 75 audio_port_handle_t *selectedDeviceId, 76 audio_port_handle_t *portId, 77 std::vector<audio_io_handle_t> *secondaryOutputs) = 0; 78 virtual status_t startOutput(audio_port_handle_t portId) = 0; 79 virtual status_t stopOutput(audio_port_handle_t portId) = 0; 80 virtual void releaseOutput(audio_port_handle_t portId) = 0; 81 virtual status_t getInputForAttr(const audio_attributes_t *attr, 82 audio_io_handle_t *input, 83 audio_unique_id_t riid, 84 audio_session_t session, 85 pid_t pid, 86 uid_t uid, 87 const String16& opPackageName, 88 const audio_config_base_t *config, 89 audio_input_flags_t flags, 90 audio_port_handle_t *selectedDeviceId, 91 audio_port_handle_t *portId) = 0; 92 virtual status_t startInput(audio_port_handle_t portId) = 0; 93 virtual status_t stopInput(audio_port_handle_t portId) = 0; 94 virtual void releaseInput(audio_port_handle_t portId) = 0; 95 virtual status_t initStreamVolume(audio_stream_type_t stream, 96 int indexMin, 97 int indexMax) = 0; 98 virtual status_t setStreamVolumeIndex(audio_stream_type_t stream, 99 int index, 100 audio_devices_t device) = 0; 101 virtual status_t getStreamVolumeIndex(audio_stream_type_t stream, 102 int *index, 103 audio_devices_t device) = 0; 104 105 virtual status_t setVolumeIndexForAttributes(const audio_attributes_t &attr, 106 int index, 107 audio_devices_t device) = 0; 108 virtual status_t getVolumeIndexForAttributes(const audio_attributes_t &attr, 109 int &index, 110 audio_devices_t device) = 0; 111 virtual status_t getMaxVolumeIndexForAttributes(const audio_attributes_t &attr, int &index) = 0; 112 113 virtual status_t getMinVolumeIndexForAttributes(const audio_attributes_t &attr, int &index) = 0; 114 115 virtual uint32_t getStrategyForStream(audio_stream_type_t stream) = 0; 116 virtual audio_devices_t getDevicesForStream(audio_stream_type_t stream) = 0; 117 virtual status_t getDevicesForAttributes(const AudioAttributes &aa, 118 AudioDeviceTypeAddrVector *devices) const = 0; 119 virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc) = 0; 120 virtual status_t registerEffect(const effect_descriptor_t *desc, 121 audio_io_handle_t io, 122 uint32_t strategy, 123 audio_session_t session, 124 int id) = 0; 125 virtual status_t unregisterEffect(int id) = 0; 126 virtual status_t setEffectEnabled(int id, bool enabled) = 0; 127 virtual status_t moveEffectsToIo(const std::vector<int>& ids, audio_io_handle_t io) = 0; 128 virtual bool isStreamActive(audio_stream_type_t stream, uint32_t inPastMs = 0) const = 0; 129 virtual bool isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs = 0) 130 const = 0; 131 virtual bool isSourceActive(audio_source_t source) const = 0; 132 virtual status_t queryDefaultPreProcessing(audio_session_t audioSession, 133 effect_descriptor_t *descriptors, 134 uint32_t *count) = 0; 135 virtual status_t addSourceDefaultEffect(const effect_uuid_t *type, 136 const String16& opPackageName, 137 const effect_uuid_t *uuid, 138 int32_t priority, 139 audio_source_t source, 140 audio_unique_id_t* id) = 0; 141 virtual status_t addStreamDefaultEffect(const effect_uuid_t *type, 142 const String16& opPackageName, 143 const effect_uuid_t *uuid, 144 int32_t priority, 145 audio_usage_t usage, 146 audio_unique_id_t* id) = 0; 147 virtual status_t removeSourceDefaultEffect(audio_unique_id_t id) = 0; 148 virtual status_t removeStreamDefaultEffect(audio_unique_id_t id) = 0; 149 virtual status_t setSupportedSystemUsages(const std::vector<audio_usage_t>& systemUsages) = 0; 150 virtual status_t setAllowedCapturePolicy(uid_t uid, audio_flags_mask_t flags) = 0; 151 // Check if offload is possible for given format, stream type, sample rate, 152 // bit rate, duration, video and streaming or offload property is enabled 153 virtual bool isOffloadSupported(const audio_offload_info_t& info) = 0; 154 155 // Check if direct playback is possible for given format, sample rate, channel mask and flags. 156 virtual bool isDirectOutputSupported(const audio_config_base_t& config, 157 const audio_attributes_t& attributes) = 0; 158 159 /* List available audio ports and their attributes */ 160 virtual status_t listAudioPorts(audio_port_role_t role, 161 audio_port_type_t type, 162 unsigned int *num_ports, 163 struct audio_port *ports, 164 unsigned int *generation) = 0; 165 166 /* Get attributes for a given audio port */ 167 virtual status_t getAudioPort(struct audio_port *port) = 0; 168 169 /* Create an audio patch between several source and sink ports */ 170 virtual status_t createAudioPatch(const struct audio_patch *patch, 171 audio_patch_handle_t *handle) = 0; 172 173 /* Release an audio patch */ 174 virtual status_t releaseAudioPatch(audio_patch_handle_t handle) = 0; 175 176 /* List existing audio patches */ 177 virtual status_t listAudioPatches(unsigned int *num_patches, 178 struct audio_patch *patches, 179 unsigned int *generation) = 0; 180 /* Set audio port configuration */ 181 virtual status_t setAudioPortConfig(const struct audio_port_config *config) = 0; 182 183 virtual void registerClient(const sp<IAudioPolicyServiceClient>& client) = 0; 184 185 virtual void setAudioPortCallbacksEnabled(bool enabled) = 0; 186 187 virtual void setAudioVolumeGroupCallbacksEnabled(bool enabled) = 0; 188 189 virtual status_t acquireSoundTriggerSession(audio_session_t *session, 190 audio_io_handle_t *ioHandle, 191 audio_devices_t *device) = 0; 192 193 virtual status_t releaseSoundTriggerSession(audio_session_t session) = 0; 194 195 virtual audio_mode_t getPhoneState() = 0; 196 197 virtual status_t registerPolicyMixes(const Vector<AudioMix>& mixes, bool registration) = 0; 198 199 virtual status_t setUidDeviceAffinities(uid_t uid, const Vector<AudioDeviceTypeAddr>& devices) 200 = 0; 201 202 virtual status_t removeUidDeviceAffinities(uid_t uid) = 0; 203 204 virtual status_t setUserIdDeviceAffinities(int userId, 205 const Vector<AudioDeviceTypeAddr>& devices) = 0; 206 207 virtual status_t removeUserIdDeviceAffinities(int userId) = 0; 208 209 virtual status_t startAudioSource(const struct audio_port_config *source, 210 const audio_attributes_t *attributes, 211 audio_port_handle_t *portId) = 0; 212 virtual status_t stopAudioSource(audio_port_handle_t portId) = 0; 213 214 virtual status_t setMasterMono(bool mono) = 0; 215 virtual status_t getMasterMono(bool *mono) = 0; 216 virtual float getStreamVolumeDB( 217 audio_stream_type_t stream, int index, audio_devices_t device) = 0; 218 219 virtual status_t getSurroundFormats(unsigned int *numSurroundFormats, 220 audio_format_t *surroundFormats, 221 bool *surroundFormatsEnabled, 222 bool reported) = 0; 223 virtual status_t getHwOffloadEncodingFormatsSupportedForA2DP( 224 std::vector<audio_format_t> *formats) = 0; 225 virtual status_t setSurroundFormatEnabled(audio_format_t audioFormat, bool enabled) = 0; 226 227 virtual status_t setAssistantUid(uid_t uid) = 0; 228 virtual status_t setA11yServicesUids(const std::vector<uid_t>& uids) = 0; 229 virtual status_t setCurrentImeUid(uid_t uid) = 0; 230 231 virtual bool isHapticPlaybackSupported() = 0; 232 virtual status_t listAudioProductStrategies(AudioProductStrategyVector &strategies) = 0; 233 virtual status_t getProductStrategyFromAudioAttributes(const AudioAttributes &aa, 234 product_strategy_t &productStrategy) = 0; 235 236 virtual status_t listAudioVolumeGroups(AudioVolumeGroupVector &groups) = 0; 237 virtual status_t getVolumeGroupFromAudioAttributes(const AudioAttributes &aa, 238 volume_group_t &volumeGroup) = 0; 239 240 virtual status_t setRttEnabled(bool enabled) = 0; 241 242 virtual bool isCallScreenModeSupported() = 0; 243 244 virtual status_t setPreferredDeviceForStrategy(product_strategy_t strategy, 245 const AudioDeviceTypeAddr &device) = 0; 246 247 virtual status_t removePreferredDeviceForStrategy(product_strategy_t strategy) = 0; 248 249 virtual status_t getPreferredDeviceForStrategy(product_strategy_t strategy, 250 AudioDeviceTypeAddr &device) = 0; 251 252 // The return code here is only intended to represent transport errors. The 253 // actual server implementation should always return NO_ERROR. 254 virtual status_t registerSoundTriggerCaptureStateListener( 255 const sp<media::ICaptureStateListener>& listener, 256 bool* result) = 0; 257 }; 258 259 260 // ---------------------------------------------------------------------------- 261 262 class BnAudioPolicyService : public BnInterface<IAudioPolicyService> 263 { 264 public: 265 virtual status_t onTransact( uint32_t code, 266 const Parcel& data, 267 Parcel* reply, 268 uint32_t flags = 0); 269 private: 270 void sanetizeAudioAttributes(audio_attributes_t* attr); 271 status_t sanitizeEffectDescriptor(effect_descriptor_t* desc); 272 status_t sanitizeAudioPortConfig(struct audio_port_config* config); 273 }; 274 275 // ---------------------------------------------------------------------------- 276 277 }; // namespace android 278 279 #endif // ANDROID_IAUDIOPOLICYSERVICE_H 280