| /* |
| * 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 "AudioPolicyService" |
| //#define LOG_NDEBUG 0 |
| |
| #include "Configuration.h" |
| #undef __STRICT_ANSI__ |
| #define __STDINT_LIMITS |
| #define __STDC_LIMIT_MACROS |
| #include <stdint.h> |
| |
| #include <sys/time.h> |
| #include <binder/IServiceManager.h> |
| #include <utils/Log.h> |
| #include <cutils/properties.h> |
| #include <binder/IPCThreadState.h> |
| #include <utils/String16.h> |
| #include <utils/threads.h> |
| #include "AudioPolicyService.h" |
| #include "ServiceUtilities.h" |
| #include <hardware_legacy/power.h> |
| #include <media/AudioEffect.h> |
| #include <media/EffectsFactoryApi.h> |
| //#include <media/IAudioFlinger.h> |
| |
| #include <hardware/hardware.h> |
| #include <system/audio.h> |
| #include <system/audio_policy.h> |
| #include <hardware/audio_policy.h> |
| #include <audio_effects/audio_effects_conf.h> |
| #include <media/AudioParameter.h> |
| |
| |
| namespace android { |
| |
| /* implementation of the interface to the policy manager */ |
| extern "C" { |
| |
| audio_module_handle_t aps_load_hw_module(void *service __unused, |
| const char *name) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) { |
| ALOGW("%s: could not get AudioFlinger", __func__); |
| return 0; |
| } |
| |
| return af->loadHwModule(name); |
| } |
| |
| static audio_io_handle_t open_output(audio_module_handle_t module, |
| audio_devices_t *pDevices, |
| uint32_t *pSamplingRate, |
| audio_format_t *pFormat, |
| audio_channel_mask_t *pChannelMask, |
| uint32_t *pLatencyMs, |
| audio_output_flags_t flags, |
| const audio_offload_info_t *offloadInfo) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) { |
| ALOGW("%s: could not get AudioFlinger", __func__); |
| return AUDIO_IO_HANDLE_NONE; |
| } |
| |
| if (pSamplingRate == NULL || pFormat == NULL || pChannelMask == NULL || |
| pDevices == NULL || pLatencyMs == NULL) { |
| return AUDIO_IO_HANDLE_NONE; |
| } |
| audio_config_t config = AUDIO_CONFIG_INITIALIZER; |
| config.sample_rate = *pSamplingRate; |
| config.format = *pFormat; |
| config.channel_mask = *pChannelMask; |
| if (offloadInfo != NULL) { |
| config.offload_info = *offloadInfo; |
| } |
| audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; |
| status_t status = af->openOutput(module, &output, &config, pDevices, |
| String8(""), pLatencyMs, flags); |
| if (status == NO_ERROR) { |
| *pSamplingRate = config.sample_rate; |
| *pFormat = config.format; |
| *pChannelMask = config.channel_mask; |
| if (offloadInfo != NULL) { |
| *((audio_offload_info_t *)offloadInfo) = config.offload_info; |
| } |
| } |
| return output; |
| } |
| |
| // deprecated: replaced by aps_open_output_on_module() |
| audio_io_handle_t aps_open_output(void *service __unused, |
| audio_devices_t *pDevices, |
| uint32_t *pSamplingRate, |
| audio_format_t *pFormat, |
| audio_channel_mask_t *pChannelMask, |
| uint32_t *pLatencyMs, |
| audio_output_flags_t flags) |
| { |
| return open_output(AUDIO_MODULE_HANDLE_NONE, pDevices, pSamplingRate, pFormat, pChannelMask, |
| pLatencyMs, flags, NULL); |
| } |
| |
| audio_io_handle_t aps_open_output_on_module(void *service __unused, |
| audio_module_handle_t module, |
| audio_devices_t *pDevices, |
| uint32_t *pSamplingRate, |
| audio_format_t *pFormat, |
| audio_channel_mask_t *pChannelMask, |
| uint32_t *pLatencyMs, |
| audio_output_flags_t flags, |
| const audio_offload_info_t *offloadInfo) |
| { |
| return open_output(module, pDevices, pSamplingRate, pFormat, pChannelMask, |
| pLatencyMs, flags, offloadInfo); |
| } |
| |
| audio_io_handle_t aps_open_dup_output(void *service __unused, |
| audio_io_handle_t output1, |
| audio_io_handle_t output2) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) { |
| ALOGW("%s: could not get AudioFlinger", __func__); |
| return 0; |
| } |
| return af->openDuplicateOutput(output1, output2); |
| } |
| |
| int aps_close_output(void *service __unused, audio_io_handle_t output) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) { |
| return PERMISSION_DENIED; |
| } |
| |
| return af->closeOutput(output); |
| } |
| |
| int aps_suspend_output(void *service __unused, audio_io_handle_t output) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) { |
| ALOGW("%s: could not get AudioFlinger", __func__); |
| return PERMISSION_DENIED; |
| } |
| |
| return af->suspendOutput(output); |
| } |
| |
| int aps_restore_output(void *service __unused, audio_io_handle_t output) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) { |
| ALOGW("%s: could not get AudioFlinger", __func__); |
| return PERMISSION_DENIED; |
| } |
| |
| return af->restoreOutput(output); |
| } |
| |
| static audio_io_handle_t open_input(audio_module_handle_t module, |
| audio_devices_t *pDevices, |
| uint32_t *pSamplingRate, |
| audio_format_t *pFormat, |
| audio_channel_mask_t *pChannelMask) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) { |
| ALOGW("%s: could not get AudioFlinger", __func__); |
| return AUDIO_IO_HANDLE_NONE; |
| } |
| |
| if (pSamplingRate == NULL || pFormat == NULL || pChannelMask == NULL || pDevices == NULL) { |
| return AUDIO_IO_HANDLE_NONE; |
| } |
| |
| if (((*pDevices & AUDIO_DEVICE_IN_REMOTE_SUBMIX) == AUDIO_DEVICE_IN_REMOTE_SUBMIX) |
| && !captureAudioOutputAllowed(IPCThreadState::self()->getCallingPid(), |
| IPCThreadState::self()->getCallingUid())) { |
| ALOGE("open_input() permission denied: capture not allowed"); |
| return AUDIO_IO_HANDLE_NONE; |
| } |
| |
| audio_config_t config = AUDIO_CONFIG_INITIALIZER;; |
| config.sample_rate = *pSamplingRate; |
| config.format = *pFormat; |
| config.channel_mask = *pChannelMask; |
| audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; |
| status_t status = af->openInput(module, &input, &config, pDevices, |
| String8(""), AUDIO_SOURCE_MIC, AUDIO_INPUT_FLAG_FAST /*FIXME*/); |
| if (status == NO_ERROR) { |
| *pSamplingRate = config.sample_rate; |
| *pFormat = config.format; |
| *pChannelMask = config.channel_mask; |
| } |
| return input; |
| } |
| |
| |
| // deprecated: replaced by aps_open_input_on_module(), and acoustics parameter is ignored |
| audio_io_handle_t aps_open_input(void *service __unused, |
| audio_devices_t *pDevices, |
| uint32_t *pSamplingRate, |
| audio_format_t *pFormat, |
| audio_channel_mask_t *pChannelMask, |
| audio_in_acoustics_t acoustics __unused) |
| { |
| return open_input(AUDIO_MODULE_HANDLE_NONE, pDevices, pSamplingRate, pFormat, pChannelMask); |
| } |
| |
| audio_io_handle_t aps_open_input_on_module(void *service __unused, |
| audio_module_handle_t module, |
| audio_devices_t *pDevices, |
| uint32_t *pSamplingRate, |
| audio_format_t *pFormat, |
| audio_channel_mask_t *pChannelMask) |
| { |
| return open_input(module, pDevices, pSamplingRate, pFormat, pChannelMask); |
| } |
| |
| int aps_close_input(void *service __unused, audio_io_handle_t input) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) { |
| return PERMISSION_DENIED; |
| } |
| |
| return af->closeInput(input); |
| } |
| |
| int aps_invalidate_stream(void *service __unused, audio_stream_type_t stream) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) { |
| return PERMISSION_DENIED; |
| } |
| |
| return af->invalidateStream(stream); |
| } |
| |
| int aps_move_effects(void *service __unused, audio_session_t session, |
| audio_io_handle_t src_output, |
| audio_io_handle_t dst_output) |
| { |
| sp<IAudioFlinger> af = AudioSystem::get_audio_flinger(); |
| if (af == 0) { |
| return PERMISSION_DENIED; |
| } |
| |
| return af->moveEffects(session, src_output, dst_output); |
| } |
| |
| char * aps_get_parameters(void *service __unused, audio_io_handle_t io_handle, |
| const char *keys) |
| { |
| String8 result = AudioSystem::getParameters(io_handle, String8(keys)); |
| return strdup(result.string()); |
| } |
| |
| void aps_set_parameters(void *service, audio_io_handle_t io_handle, |
| const char *kv_pairs, int delay_ms) |
| { |
| AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; |
| |
| audioPolicyService->setParameters(io_handle, kv_pairs, delay_ms); |
| } |
| |
| int aps_set_stream_volume(void *service, audio_stream_type_t stream, |
| float volume, audio_io_handle_t output, |
| int delay_ms) |
| { |
| AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; |
| |
| return audioPolicyService->setStreamVolume(stream, volume, output, |
| delay_ms); |
| } |
| |
| int aps_start_tone(void *service, audio_policy_tone_t tone, |
| audio_stream_type_t stream) |
| { |
| AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; |
| |
| return audioPolicyService->startTone(tone, stream); |
| } |
| |
| int aps_stop_tone(void *service) |
| { |
| AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; |
| |
| return audioPolicyService->stopTone(); |
| } |
| |
| int aps_set_voice_volume(void *service, float volume, int delay_ms) |
| { |
| AudioPolicyService *audioPolicyService = (AudioPolicyService *)service; |
| |
| return audioPolicyService->setVoiceVolume(volume, delay_ms); |
| } |
| |
| }; // extern "C" |
| |
| }; // namespace android |
