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 24 #include <utils/RefBase.h> 25 #include <utils/Errors.h> 26 #include <binder/IInterface.h> 27 #include <media/AudioSystem.h> 28 #include <media/AudioPolicy.h> 29 #include <media/IAudioPolicyServiceClient.h> 30 31 #include <system/audio_policy.h> 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 status_t setDeviceConnectionState(audio_devices_t device, 46 audio_policy_dev_state_t state, 47 const char *device_address, 48 const char *device_name) = 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) = 0; 54 virtual status_t setPhoneState(audio_mode_t state) = 0; 55 virtual status_t setForceUse(audio_policy_force_use_t usage, 56 audio_policy_forced_cfg_t config) = 0; 57 virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage) = 0; 58 virtual audio_io_handle_t getOutput(audio_stream_type_t stream) = 0; 59 virtual status_t getOutputForAttr(const audio_attributes_t *attr, 60 audio_io_handle_t *output, 61 audio_session_t session, 62 audio_stream_type_t *stream, 63 pid_t pid, 64 uid_t uid, 65 const audio_config_t *config, 66 audio_output_flags_t flags, 67 audio_port_handle_t *selectedDeviceId, 68 audio_port_handle_t *portId) = 0; 69 virtual status_t startOutput(audio_io_handle_t output, 70 audio_stream_type_t stream, 71 audio_session_t session) = 0; 72 virtual status_t stopOutput(audio_io_handle_t output, 73 audio_stream_type_t stream, 74 audio_session_t session) = 0; 75 virtual void releaseOutput(audio_io_handle_t output, 76 audio_stream_type_t stream, 77 audio_session_t session) = 0; 78 virtual status_t getInputForAttr(const audio_attributes_t *attr, 79 audio_io_handle_t *input, 80 audio_session_t session, 81 pid_t pid, 82 uid_t uid, 83 const String16& opPackageName, 84 const audio_config_base_t *config, 85 audio_input_flags_t flags, 86 audio_port_handle_t *selectedDeviceId, 87 audio_port_handle_t *portId) = 0; 88 virtual status_t startInput(audio_port_handle_t portId, 89 bool *silenced) = 0; 90 virtual status_t stopInput(audio_port_handle_t portId) = 0; 91 virtual void releaseInput(audio_port_handle_t portId) = 0; 92 virtual status_t initStreamVolume(audio_stream_type_t stream, 93 int indexMin, 94 int indexMax) = 0; 95 virtual status_t setStreamVolumeIndex(audio_stream_type_t stream, 96 int index, 97 audio_devices_t device) = 0; 98 virtual status_t getStreamVolumeIndex(audio_stream_type_t stream, 99 int *index, 100 audio_devices_t device) = 0; 101 virtual uint32_t getStrategyForStream(audio_stream_type_t stream) = 0; 102 virtual audio_devices_t getDevicesForStream(audio_stream_type_t stream) = 0; 103 virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc) = 0; 104 virtual status_t registerEffect(const effect_descriptor_t *desc, 105 audio_io_handle_t io, 106 uint32_t strategy, 107 audio_session_t session, 108 int id) = 0; 109 virtual status_t unregisterEffect(int id) = 0; 110 virtual status_t setEffectEnabled(int id, bool enabled) = 0; 111 virtual bool isStreamActive(audio_stream_type_t stream, uint32_t inPastMs = 0) const = 0; 112 virtual bool isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs = 0) 113 const = 0; 114 virtual bool isSourceActive(audio_source_t source) const = 0; 115 virtual status_t queryDefaultPreProcessing(audio_session_t audioSession, 116 effect_descriptor_t *descriptors, 117 uint32_t *count) = 0; 118 // Check if offload is possible for given format, stream type, sample rate, 119 // bit rate, duration, video and streaming or offload property is enabled 120 virtual bool isOffloadSupported(const audio_offload_info_t& info) = 0; 121 122 /* List available audio ports and their attributes */ 123 virtual status_t listAudioPorts(audio_port_role_t role, 124 audio_port_type_t type, 125 unsigned int *num_ports, 126 struct audio_port *ports, 127 unsigned int *generation) = 0; 128 129 /* Get attributes for a given audio port */ 130 virtual status_t getAudioPort(struct audio_port *port) = 0; 131 132 /* Create an audio patch between several source and sink ports */ 133 virtual status_t createAudioPatch(const struct audio_patch *patch, 134 audio_patch_handle_t *handle) = 0; 135 136 /* Release an audio patch */ 137 virtual status_t releaseAudioPatch(audio_patch_handle_t handle) = 0; 138 139 /* List existing audio patches */ 140 virtual status_t listAudioPatches(unsigned int *num_patches, 141 struct audio_patch *patches, 142 unsigned int *generation) = 0; 143 /* Set audio port configuration */ 144 virtual status_t setAudioPortConfig(const struct audio_port_config *config) = 0; 145 146 virtual void registerClient(const sp<IAudioPolicyServiceClient>& client) = 0; 147 148 virtual void setAudioPortCallbacksEnabled(bool enabled) = 0; 149 150 virtual status_t acquireSoundTriggerSession(audio_session_t *session, 151 audio_io_handle_t *ioHandle, 152 audio_devices_t *device) = 0; 153 154 virtual status_t releaseSoundTriggerSession(audio_session_t session) = 0; 155 156 virtual audio_mode_t getPhoneState() = 0; 157 158 virtual status_t registerPolicyMixes(const Vector<AudioMix>& mixes, bool registration) = 0; 159 160 virtual status_t startAudioSource(const struct audio_port_config *source, 161 const audio_attributes_t *attributes, 162 audio_patch_handle_t *handle) = 0; 163 virtual status_t stopAudioSource(audio_patch_handle_t handle) = 0; 164 165 virtual status_t setMasterMono(bool mono) = 0; 166 virtual status_t getMasterMono(bool *mono) = 0; 167 virtual float getStreamVolumeDB( 168 audio_stream_type_t stream, int index, audio_devices_t device) = 0; 169 170 virtual status_t getSurroundFormats(unsigned int *numSurroundFormats, 171 audio_format_t *surroundFormats, 172 bool *surroundFormatsEnabled, 173 bool reported) = 0; 174 virtual status_t setSurroundFormatEnabled(audio_format_t audioFormat, bool enabled) = 0; 175 }; 176 177 178 // ---------------------------------------------------------------------------- 179 180 class BnAudioPolicyService : public BnInterface<IAudioPolicyService> 181 { 182 public: 183 virtual status_t onTransact( uint32_t code, 184 const Parcel& data, 185 Parcel* reply, 186 uint32_t flags = 0); 187 private: 188 void sanetizeAudioAttributes(audio_attributes_t* attr); 189 status_t sanitizeEffectDescriptor(effect_descriptor_t* desc); 190 status_t sanitizeAudioPortConfig(struct audio_port_config* config); 191 }; 192 193 // ---------------------------------------------------------------------------- 194 195 }; // namespace android 196 197 #endif // ANDROID_IAUDIOPOLICYSERVICE_H 198
