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/AudioSystem.h> 27 #include <media/AudioPolicy.h> 28 #include <media/IAudioPolicyServiceClient.h> 29 #include <system/audio_policy.h> 30 #include <vector> 31 32 namespace android { 33 34 // ---------------------------------------------------------------------------- 35 36 class IAudioPolicyService : public IInterface 37 { 38 public: 39 DECLARE_META_INTERFACE(AudioPolicyService); 40 41 // 42 // IAudioPolicyService interface (see AudioPolicyInterface for method descriptions) 43 // 44 virtual status_t setDeviceConnectionState(audio_devices_t device, 45 audio_policy_dev_state_t state, 46 const char *device_address, 47 const char *device_name, 48 audio_format_t encodedFormat) = 0; 49 virtual audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device, 50 const char *device_address) = 0; 51 virtual status_t handleDeviceConfigChange(audio_devices_t device, 52 const char *device_address, 53 const char *device_name, 54 audio_format_t encodedFormat) = 0; 55 virtual status_t setPhoneState(audio_mode_t state) = 0; 56 virtual status_t setForceUse(audio_policy_force_use_t usage, 57 audio_policy_forced_cfg_t config) = 0; 58 virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage) = 0; 59 virtual audio_io_handle_t getOutput(audio_stream_type_t stream) = 0; 60 virtual status_t getOutputForAttr(audio_attributes_t *attr, 61 audio_io_handle_t *output, 62 audio_session_t session, 63 audio_stream_type_t *stream, 64 pid_t pid, 65 uid_t uid, 66 const audio_config_t *config, 67 audio_output_flags_t flags, 68 audio_port_handle_t *selectedDeviceId, 69 audio_port_handle_t *portId, 70 std::vector<audio_io_handle_t> *secondaryOutputs) = 0; 71 virtual status_t startOutput(audio_port_handle_t portId) = 0; 72 virtual status_t stopOutput(audio_port_handle_t portId) = 0; 73 virtual void releaseOutput(audio_port_handle_t portId) = 0; 74 virtual status_t getInputForAttr(const audio_attributes_t *attr, 75 audio_io_handle_t *input, 76 audio_unique_id_t riid, 77 audio_session_t session, 78 pid_t pid, 79 uid_t uid, 80 const String16& opPackageName, 81 const audio_config_base_t *config, 82 audio_input_flags_t flags, 83 audio_port_handle_t *selectedDeviceId, 84 audio_port_handle_t *portId) = 0; 85 virtual status_t startInput(audio_port_handle_t portId) = 0; 86 virtual status_t stopInput(audio_port_handle_t portId) = 0; 87 virtual void releaseInput(audio_port_handle_t portId) = 0; 88 virtual status_t initStreamVolume(audio_stream_type_t stream, 89 int indexMin, 90 int indexMax) = 0; 91 virtual status_t setStreamVolumeIndex(audio_stream_type_t stream, 92 int index, 93 audio_devices_t device) = 0; 94 virtual status_t getStreamVolumeIndex(audio_stream_type_t stream, 95 int *index, 96 audio_devices_t device) = 0; 97 98 virtual status_t setVolumeIndexForAttributes(const audio_attributes_t &attr, 99 int index, 100 audio_devices_t device) = 0; 101 virtual status_t getVolumeIndexForAttributes(const audio_attributes_t &attr, 102 int &index, 103 audio_devices_t device) = 0; 104 virtual status_t getMaxVolumeIndexForAttributes(const audio_attributes_t &attr, int &index) = 0; 105 106 virtual status_t getMinVolumeIndexForAttributes(const audio_attributes_t &attr, int &index) = 0; 107 108 virtual uint32_t getStrategyForStream(audio_stream_type_t stream) = 0; 109 virtual audio_devices_t getDevicesForStream(audio_stream_type_t stream) = 0; 110 virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc) = 0; 111 virtual status_t registerEffect(const effect_descriptor_t *desc, 112 audio_io_handle_t io, 113 uint32_t strategy, 114 audio_session_t session, 115 int id) = 0; 116 virtual status_t unregisterEffect(int id) = 0; 117 virtual status_t setEffectEnabled(int id, bool enabled) = 0; 118 virtual status_t moveEffectsToIo(const std::vector<int>& ids, audio_io_handle_t io) = 0; 119 virtual bool isStreamActive(audio_stream_type_t stream, uint32_t inPastMs = 0) const = 0; 120 virtual bool isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs = 0) 121 const = 0; 122 virtual bool isSourceActive(audio_source_t source) const = 0; 123 virtual status_t queryDefaultPreProcessing(audio_session_t audioSession, 124 effect_descriptor_t *descriptors, 125 uint32_t *count) = 0; 126 virtual status_t addSourceDefaultEffect(const effect_uuid_t *type, 127 const String16& opPackageName, 128 const effect_uuid_t *uuid, 129 int32_t priority, 130 audio_source_t source, 131 audio_unique_id_t* id) = 0; 132 virtual status_t addStreamDefaultEffect(const effect_uuid_t *type, 133 const String16& opPackageName, 134 const effect_uuid_t *uuid, 135 int32_t priority, 136 audio_usage_t usage, 137 audio_unique_id_t* id) = 0; 138 virtual status_t removeSourceDefaultEffect(audio_unique_id_t id) = 0; 139 virtual status_t removeStreamDefaultEffect(audio_unique_id_t id) = 0; 140 virtual status_t setAllowedCapturePolicy(uid_t uid, audio_flags_mask_t flags) = 0; 141 // Check if offload is possible for given format, stream type, sample rate, 142 // bit rate, duration, video and streaming or offload property is enabled 143 virtual bool isOffloadSupported(const audio_offload_info_t& info) = 0; 144 145 // Check if direct playback is possible for given format, sample rate, channel mask and flags. 146 virtual bool isDirectOutputSupported(const audio_config_base_t& config, 147 const audio_attributes_t& attributes) = 0; 148 149 /* List available audio ports and their attributes */ 150 virtual status_t listAudioPorts(audio_port_role_t role, 151 audio_port_type_t type, 152 unsigned int *num_ports, 153 struct audio_port *ports, 154 unsigned int *generation) = 0; 155 156 /* Get attributes for a given audio port */ 157 virtual status_t getAudioPort(struct audio_port *port) = 0; 158 159 /* Create an audio patch between several source and sink ports */ 160 virtual status_t createAudioPatch(const struct audio_patch *patch, 161 audio_patch_handle_t *handle) = 0; 162 163 /* Release an audio patch */ 164 virtual status_t releaseAudioPatch(audio_patch_handle_t handle) = 0; 165 166 /* List existing audio patches */ 167 virtual status_t listAudioPatches(unsigned int *num_patches, 168 struct audio_patch *patches, 169 unsigned int *generation) = 0; 170 /* Set audio port configuration */ 171 virtual status_t setAudioPortConfig(const struct audio_port_config *config) = 0; 172 173 virtual void registerClient(const sp<IAudioPolicyServiceClient>& client) = 0; 174 175 virtual void setAudioPortCallbacksEnabled(bool enabled) = 0; 176 177 virtual void setAudioVolumeGroupCallbacksEnabled(bool enabled) = 0; 178 179 virtual status_t acquireSoundTriggerSession(audio_session_t *session, 180 audio_io_handle_t *ioHandle, 181 audio_devices_t *device) = 0; 182 183 virtual status_t releaseSoundTriggerSession(audio_session_t session) = 0; 184 185 virtual audio_mode_t getPhoneState() = 0; 186 187 virtual status_t registerPolicyMixes(const Vector<AudioMix>& mixes, bool registration) = 0; 188 189 virtual status_t setUidDeviceAffinities(uid_t uid, const Vector<AudioDeviceTypeAddr>& devices) 190 = 0; 191 192 virtual status_t removeUidDeviceAffinities(uid_t uid) = 0; 193 194 virtual status_t startAudioSource(const struct audio_port_config *source, 195 const audio_attributes_t *attributes, 196 audio_port_handle_t *portId) = 0; 197 virtual status_t stopAudioSource(audio_port_handle_t portId) = 0; 198 199 virtual status_t setMasterMono(bool mono) = 0; 200 virtual status_t getMasterMono(bool *mono) = 0; 201 virtual float getStreamVolumeDB( 202 audio_stream_type_t stream, int index, audio_devices_t device) = 0; 203 204 virtual status_t getSurroundFormats(unsigned int *numSurroundFormats, 205 audio_format_t *surroundFormats, 206 bool *surroundFormatsEnabled, 207 bool reported) = 0; 208 virtual status_t getHwOffloadEncodingFormatsSupportedForA2DP( 209 std::vector<audio_format_t> *formats) = 0; 210 virtual status_t setSurroundFormatEnabled(audio_format_t audioFormat, bool enabled) = 0; 211 212 virtual status_t setAssistantUid(uid_t uid) = 0; 213 virtual status_t setA11yServicesUids(const std::vector<uid_t>& uids) = 0; 214 215 virtual bool isHapticPlaybackSupported() = 0; 216 virtual status_t listAudioProductStrategies(AudioProductStrategyVector &strategies) = 0; 217 virtual status_t getProductStrategyFromAudioAttributes(const AudioAttributes &aa, 218 product_strategy_t &productStrategy) = 0; 219 220 virtual status_t listAudioVolumeGroups(AudioVolumeGroupVector &groups) = 0; 221 virtual status_t getVolumeGroupFromAudioAttributes(const AudioAttributes &aa, 222 volume_group_t &volumeGroup) = 0; 223 224 virtual status_t setRttEnabled(bool enabled) = 0; 225 }; 226 227 228 // ---------------------------------------------------------------------------- 229 230 class BnAudioPolicyService : public BnInterface<IAudioPolicyService> 231 { 232 public: 233 virtual status_t onTransact( uint32_t code, 234 const Parcel& data, 235 Parcel* reply, 236 uint32_t flags = 0); 237 private: 238 void sanetizeAudioAttributes(audio_attributes_t* attr); 239 status_t sanitizeEffectDescriptor(effect_descriptor_t* desc); 240 status_t sanitizeAudioPortConfig(struct audio_port_config* config); 241 }; 242 243 // ---------------------------------------------------------------------------- 244 245 }; // namespace android 246 247 #endif // ANDROID_IAUDIOPOLICYSERVICE_H 248
