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 35 // ---------------------------------------------------------------------------- 36 37 class IAudioPolicyService : public IInterface 38 { 39 public: 40 DECLARE_META_INTERFACE(AudioPolicyService); 41 42 // 43 // IAudioPolicyService interface (see AudioPolicyInterface for method descriptions) 44 // 45 virtual void onNewAudioModulesAvailable() = 0; 46 virtual status_t setDeviceConnectionState(audio_devices_t device, 47 audio_policy_dev_state_t state, 48 const char *device_address, 49 const char *device_name, 50 audio_format_t encodedFormat) = 0; 51 virtual audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device, 52 const char *device_address) = 0; 53 virtual status_t handleDeviceConfigChange(audio_devices_t device, 54 const char *device_address, 55 const char *device_name, 56 audio_format_t encodedFormat) = 0; 57 virtual status_t setPhoneState(audio_mode_t state) = 0; 58 virtual status_t setForceUse(audio_policy_force_use_t usage, 59 audio_policy_forced_cfg_t config) = 0; 60 virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage) = 0; 61 virtual audio_io_handle_t getOutput(audio_stream_type_t stream) = 0; 62 virtual status_t getOutputForAttr(audio_attributes_t *attr, 63 audio_io_handle_t *output, 64 audio_session_t session, 65 audio_stream_type_t *stream, 66 pid_t pid, 67 uid_t uid, 68 const audio_config_t *config, 69 audio_output_flags_t flags, 70 audio_port_handle_t *selectedDeviceId, 71 audio_port_handle_t *portId, 72 std::vector<audio_io_handle_t> *secondaryOutputs) = 0; 73 virtual status_t startOutput(audio_port_handle_t portId) = 0; 74 virtual status_t stopOutput(audio_port_handle_t portId) = 0; 75 virtual void releaseOutput(audio_port_handle_t portId) = 0; 76 virtual status_t getInputForAttr(const audio_attributes_t *attr, 77 audio_io_handle_t *input, 78 audio_unique_id_t riid, 79 audio_session_t session, 80 pid_t pid, 81 uid_t uid, 82 const String16& opPackageName, 83 const audio_config_base_t *config, 84 audio_input_flags_t flags, 85 audio_port_handle_t *selectedDeviceId, 86 audio_port_handle_t *portId) = 0; 87 virtual status_t startInput(audio_port_handle_t portId) = 0; 88 virtual status_t stopInput(audio_port_handle_t portId) = 0; 89 virtual void releaseInput(audio_port_handle_t portId) = 0; 90 virtual status_t initStreamVolume(audio_stream_type_t stream, 91 int indexMin, 92 int indexMax) = 0; 93 virtual status_t setStreamVolumeIndex(audio_stream_type_t stream, 94 int index, 95 audio_devices_t device) = 0; 96 virtual status_t getStreamVolumeIndex(audio_stream_type_t stream, 97 int *index, 98 audio_devices_t device) = 0; 99 100 virtual status_t setVolumeIndexForAttributes(const audio_attributes_t &attr, 101 int index, 102 audio_devices_t device) = 0; 103 virtual status_t getVolumeIndexForAttributes(const audio_attributes_t &attr, 104 int &index, 105 audio_devices_t device) = 0; 106 virtual status_t getMaxVolumeIndexForAttributes(const audio_attributes_t &attr, int &index) = 0; 107 108 virtual status_t getMinVolumeIndexForAttributes(const audio_attributes_t &attr, int &index) = 0; 109 110 virtual uint32_t getStrategyForStream(audio_stream_type_t stream) = 0; 111 virtual audio_devices_t getDevicesForStream(audio_stream_type_t stream) = 0; 112 virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc) = 0; 113 virtual status_t registerEffect(const effect_descriptor_t *desc, 114 audio_io_handle_t io, 115 uint32_t strategy, 116 audio_session_t session, 117 int id) = 0; 118 virtual status_t unregisterEffect(int id) = 0; 119 virtual status_t setEffectEnabled(int id, bool enabled) = 0; 120 virtual status_t moveEffectsToIo(const std::vector<int>& ids, audio_io_handle_t io) = 0; 121 virtual bool isStreamActive(audio_stream_type_t stream, uint32_t inPastMs = 0) const = 0; 122 virtual bool isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs = 0) 123 const = 0; 124 virtual bool isSourceActive(audio_source_t source) const = 0; 125 virtual status_t queryDefaultPreProcessing(audio_session_t audioSession, 126 effect_descriptor_t *descriptors, 127 uint32_t *count) = 0; 128 virtual status_t addSourceDefaultEffect(const effect_uuid_t *type, 129 const String16& opPackageName, 130 const effect_uuid_t *uuid, 131 int32_t priority, 132 audio_source_t source, 133 audio_unique_id_t* id) = 0; 134 virtual status_t addStreamDefaultEffect(const effect_uuid_t *type, 135 const String16& opPackageName, 136 const effect_uuid_t *uuid, 137 int32_t priority, 138 audio_usage_t usage, 139 audio_unique_id_t* id) = 0; 140 virtual status_t removeSourceDefaultEffect(audio_unique_id_t id) = 0; 141 virtual status_t removeStreamDefaultEffect(audio_unique_id_t id) = 0; 142 virtual status_t setAllowedCapturePolicy(uid_t uid, audio_flags_mask_t flags) = 0; 143 // Check if offload is possible for given format, stream type, sample rate, 144 // bit rate, duration, video and streaming or offload property is enabled 145 virtual bool isOffloadSupported(const audio_offload_info_t& info) = 0; 146 147 // Check if direct playback is possible for given format, sample rate, channel mask and flags. 148 virtual bool isDirectOutputSupported(const audio_config_base_t& config, 149 const audio_attributes_t& attributes) = 0; 150 151 /* List available audio ports and their attributes */ 152 virtual status_t listAudioPorts(audio_port_role_t role, 153 audio_port_type_t type, 154 unsigned int *num_ports, 155 struct audio_port *ports, 156 unsigned int *generation) = 0; 157 158 /* Get attributes for a given audio port */ 159 virtual status_t getAudioPort(struct audio_port *port) = 0; 160 161 /* Create an audio patch between several source and sink ports */ 162 virtual status_t createAudioPatch(const struct audio_patch *patch, 163 audio_patch_handle_t *handle) = 0; 164 165 /* Release an audio patch */ 166 virtual status_t releaseAudioPatch(audio_patch_handle_t handle) = 0; 167 168 /* List existing audio patches */ 169 virtual status_t listAudioPatches(unsigned int *num_patches, 170 struct audio_patch *patches, 171 unsigned int *generation) = 0; 172 /* Set audio port configuration */ 173 virtual status_t setAudioPortConfig(const struct audio_port_config *config) = 0; 174 175 virtual void registerClient(const sp<IAudioPolicyServiceClient>& client) = 0; 176 177 virtual void setAudioPortCallbacksEnabled(bool enabled) = 0; 178 179 virtual void setAudioVolumeGroupCallbacksEnabled(bool enabled) = 0; 180 181 virtual status_t acquireSoundTriggerSession(audio_session_t *session, 182 audio_io_handle_t *ioHandle, 183 audio_devices_t *device) = 0; 184 185 virtual status_t releaseSoundTriggerSession(audio_session_t session) = 0; 186 187 virtual audio_mode_t getPhoneState() = 0; 188 189 virtual status_t registerPolicyMixes(const Vector<AudioMix>& mixes, bool registration) = 0; 190 191 virtual status_t setUidDeviceAffinities(uid_t uid, const Vector<AudioDeviceTypeAddr>& devices) 192 = 0; 193 194 virtual status_t removeUidDeviceAffinities(uid_t uid) = 0; 195 196 virtual status_t startAudioSource(const struct audio_port_config *source, 197 const audio_attributes_t *attributes, 198 audio_port_handle_t *portId) = 0; 199 virtual status_t stopAudioSource(audio_port_handle_t portId) = 0; 200 201 virtual status_t setMasterMono(bool mono) = 0; 202 virtual status_t getMasterMono(bool *mono) = 0; 203 virtual float getStreamVolumeDB( 204 audio_stream_type_t stream, int index, audio_devices_t device) = 0; 205 206 virtual status_t getSurroundFormats(unsigned int *numSurroundFormats, 207 audio_format_t *surroundFormats, 208 bool *surroundFormatsEnabled, 209 bool reported) = 0; 210 virtual status_t getHwOffloadEncodingFormatsSupportedForA2DP( 211 std::vector<audio_format_t> *formats) = 0; 212 virtual status_t setSurroundFormatEnabled(audio_format_t audioFormat, bool enabled) = 0; 213 214 virtual status_t setAssistantUid(uid_t uid) = 0; 215 virtual status_t setA11yServicesUids(const std::vector<uid_t>& uids) = 0; 216 217 virtual bool isHapticPlaybackSupported() = 0; 218 virtual status_t listAudioProductStrategies(AudioProductStrategyVector &strategies) = 0; 219 virtual status_t getProductStrategyFromAudioAttributes(const AudioAttributes &aa, 220 product_strategy_t &productStrategy) = 0; 221 222 virtual status_t listAudioVolumeGroups(AudioVolumeGroupVector &groups) = 0; 223 virtual status_t getVolumeGroupFromAudioAttributes(const AudioAttributes &aa, 224 volume_group_t &volumeGroup) = 0; 225 226 virtual status_t setRttEnabled(bool enabled) = 0; 227 228 virtual status_t setPreferredDeviceForStrategy(product_strategy_t strategy, 229 const AudioDeviceTypeAddr &device) = 0; 230 231 virtual status_t removePreferredDeviceForStrategy(product_strategy_t strategy) = 0; 232 233 virtual status_t getPreferredDeviceForStrategy(product_strategy_t strategy, 234 AudioDeviceTypeAddr &device) = 0; 235 }; 236 237 238 // ---------------------------------------------------------------------------- 239 240 class BnAudioPolicyService : public BnInterface<IAudioPolicyService> 241 { 242 public: 243 virtual status_t onTransact( uint32_t code, 244 const Parcel& data, 245 Parcel* reply, 246 uint32_t flags = 0); 247 private: 248 void sanetizeAudioAttributes(audio_attributes_t* attr); 249 status_t sanitizeEffectDescriptor(effect_descriptor_t* desc); 250 status_t sanitizeAudioPortConfig(struct audio_port_config* config); 251 }; 252 253 // ---------------------------------------------------------------------------- 254 255 }; // namespace android 256 257 #endif // ANDROID_IAUDIOPOLICYSERVICE_H 258