| /* |
| * Copyright (C) 2011 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 "legacy_audio_policy_hal" |
| //#define LOG_NDEBUG 0 |
| |
| #include <stdint.h> |
| |
| #include <hardware/hardware.h> |
| #include <system/audio.h> |
| #include <system/audio_policy.h> |
| #include <hardware/audio_policy.h> |
| |
| #include <hardware_legacy/AudioPolicyInterface.h> |
| #include <hardware_legacy/AudioSystemLegacy.h> |
| |
| #include "AudioPolicyCompatClient.h" |
| |
| namespace android_audio_legacy { |
| |
| extern "C" { |
| |
| struct legacy_ap_module { |
| struct audio_policy_module module; |
| }; |
| |
| struct legacy_ap_device { |
| struct audio_policy_device device; |
| }; |
| |
| struct legacy_audio_policy { |
| struct audio_policy policy; |
| |
| void *service; |
| struct audio_policy_service_ops *aps_ops; |
| AudioPolicyCompatClient *service_client; |
| AudioPolicyInterface *apm; |
| }; |
| |
| static inline struct legacy_audio_policy * to_lap(struct audio_policy *pol) |
| { |
| return reinterpret_cast<struct legacy_audio_policy *>(pol); |
| } |
| |
| static inline const struct legacy_audio_policy * to_clap(const struct audio_policy *pol) |
| { |
| return reinterpret_cast<const struct legacy_audio_policy *>(pol); |
| } |
| |
| |
| static int ap_set_device_connection_state(struct audio_policy *pol, |
| audio_devices_t device, |
| audio_policy_dev_state_t state, |
| const char *device_address) |
| { |
| struct legacy_audio_policy *lap = to_lap(pol); |
| return lap->apm->setDeviceConnectionState( |
| (AudioSystem::audio_devices)device, |
| (AudioSystem::device_connection_state)state, |
| device_address); |
| } |
| |
| static audio_policy_dev_state_t ap_get_device_connection_state( |
| const struct audio_policy *pol, |
| audio_devices_t device, |
| const char *device_address) |
| { |
| const struct legacy_audio_policy *lap = to_clap(pol); |
| return (audio_policy_dev_state_t)lap->apm->getDeviceConnectionState( |
| (AudioSystem::audio_devices)device, |
| device_address); |
| } |
| |
| static void ap_set_phone_state(struct audio_policy *pol, audio_mode_t state) |
| { |
| struct legacy_audio_policy *lap = to_lap(pol); |
| // as this is the legacy API, don't change it to use audio_mode_t instead of int |
| lap->apm->setPhoneState((int) state); |
| } |
| |
| /* indicate a change in ringer mode */ |
| static void ap_set_ringer_mode(struct audio_policy *pol, uint32_t mode, |
| uint32_t mask) |
| { |
| // deprecated, never called |
| } |
| |
| /* force using a specific device category for the specified usage */ |
| static void ap_set_force_use(struct audio_policy *pol, |
| audio_policy_force_use_t usage, |
| audio_policy_forced_cfg_t config) |
| { |
| struct legacy_audio_policy *lap = to_lap(pol); |
| lap->apm->setForceUse((AudioSystem::force_use)usage, |
| (AudioSystem::forced_config)config); |
| } |
| |
| /* retreive current device category forced for a given usage */ |
| static audio_policy_forced_cfg_t ap_get_force_use( |
| const struct audio_policy *pol, |
| audio_policy_force_use_t usage) |
| { |
| const struct legacy_audio_policy *lap = to_clap(pol); |
| return (audio_policy_forced_cfg_t)lap->apm->getForceUse( |
| (AudioSystem::force_use)usage); |
| } |
| |
| /* if can_mute is true, then audio streams that are marked ENFORCED_AUDIBLE |
| * can still be muted. */ |
| static void ap_set_can_mute_enforced_audible(struct audio_policy *pol, |
| bool can_mute) |
| { |
| struct legacy_audio_policy *lap = to_lap(pol); |
| lap->apm->setSystemProperty("ro.camera.sound.forced", can_mute ? "0" : "1"); |
| } |
| |
| static int ap_init_check(const struct audio_policy *pol) |
| { |
| const struct legacy_audio_policy *lap = to_clap(pol); |
| return lap->apm->initCheck(); |
| } |
| |
| static audio_io_handle_t ap_get_output(struct audio_policy *pol, |
| audio_stream_type_t stream, |
| uint32_t sampling_rate, |
| audio_format_t format, |
| audio_channel_mask_t channelMask, |
| audio_output_flags_t flags) |
| { |
| struct legacy_audio_policy *lap = to_lap(pol); |
| |
| ALOGV("%s: tid %d", __func__, gettid()); |
| return lap->apm->getOutput((AudioSystem::stream_type)stream, |
| sampling_rate, (int) format, channelMask, |
| (AudioSystem::output_flags)flags); |
| } |
| |
| static int ap_start_output(struct audio_policy *pol, audio_io_handle_t output, |
| audio_stream_type_t stream, int session) |
| { |
| struct legacy_audio_policy *lap = to_lap(pol); |
| return lap->apm->startOutput(output, (AudioSystem::stream_type)stream, |
| session); |
| } |
| |
| static int ap_stop_output(struct audio_policy *pol, audio_io_handle_t output, |
| audio_stream_type_t stream, int session) |
| { |
| struct legacy_audio_policy *lap = to_lap(pol); |
| return lap->apm->stopOutput(output, (AudioSystem::stream_type)stream, |
| session); |
| } |
| |
| static void ap_release_output(struct audio_policy *pol, |
| audio_io_handle_t output) |
| { |
| struct legacy_audio_policy *lap = to_lap(pol); |
| lap->apm->releaseOutput(output); |
| } |
| |
| static audio_io_handle_t ap_get_input(struct audio_policy *pol, audio_source_t inputSource, |
| uint32_t sampling_rate, |
| audio_format_t format, |
| audio_channel_mask_t channelMask, |
| audio_in_acoustics_t acoustics) |
| { |
| struct legacy_audio_policy *lap = to_lap(pol); |
| return lap->apm->getInput((int) inputSource, sampling_rate, (int) format, channelMask, |
| (AudioSystem::audio_in_acoustics)acoustics); |
| } |
| |
| static int ap_start_input(struct audio_policy *pol, audio_io_handle_t input) |
| { |
| struct legacy_audio_policy *lap = to_lap(pol); |
| return lap->apm->startInput(input); |
| } |
| |
| static int ap_stop_input(struct audio_policy *pol, audio_io_handle_t input) |
| { |
| struct legacy_audio_policy *lap = to_lap(pol); |
| return lap->apm->stopInput(input); |
| } |
| |
| static void ap_release_input(struct audio_policy *pol, audio_io_handle_t input) |
| { |
| struct legacy_audio_policy *lap = to_lap(pol); |
| lap->apm->releaseInput(input); |
| } |
| |
| static void ap_init_stream_volume(struct audio_policy *pol, |
| audio_stream_type_t stream, int index_min, |
| int index_max) |
| { |
| struct legacy_audio_policy *lap = to_lap(pol); |
| lap->apm->initStreamVolume((AudioSystem::stream_type)stream, index_min, |
| index_max); |
| } |
| |
| static int ap_set_stream_volume_index(struct audio_policy *pol, |
| audio_stream_type_t stream, |
| int index) |
| { |
| struct legacy_audio_policy *lap = to_lap(pol); |
| return lap->apm->setStreamVolumeIndex((AudioSystem::stream_type)stream, |
| index, |
| AUDIO_DEVICE_OUT_DEFAULT); |
| } |
| |
| static int ap_get_stream_volume_index(const struct audio_policy *pol, |
| audio_stream_type_t stream, |
| int *index) |
| { |
| const struct legacy_audio_policy *lap = to_clap(pol); |
| return lap->apm->getStreamVolumeIndex((AudioSystem::stream_type)stream, |
| index, |
| AUDIO_DEVICE_OUT_DEFAULT); |
| } |
| |
| static int ap_set_stream_volume_index_for_device(struct audio_policy *pol, |
| audio_stream_type_t stream, |
| int index, |
| audio_devices_t device) |
| { |
| struct legacy_audio_policy *lap = to_lap(pol); |
| return lap->apm->setStreamVolumeIndex((AudioSystem::stream_type)stream, |
| index, |
| device); |
| } |
| |
| static int ap_get_stream_volume_index_for_device(const struct audio_policy *pol, |
| audio_stream_type_t stream, |
| int *index, |
| audio_devices_t device) |
| { |
| const struct legacy_audio_policy *lap = to_clap(pol); |
| return lap->apm->getStreamVolumeIndex((AudioSystem::stream_type)stream, |
| index, |
| device); |
| } |
| |
| static uint32_t ap_get_strategy_for_stream(const struct audio_policy *pol, |
| audio_stream_type_t stream) |
| { |
| const struct legacy_audio_policy *lap = to_clap(pol); |
| return lap->apm->getStrategyForStream((AudioSystem::stream_type)stream); |
| } |
| |
| static audio_devices_t ap_get_devices_for_stream(const struct audio_policy *pol, |
| audio_stream_type_t stream) |
| { |
| const struct legacy_audio_policy *lap = to_clap(pol); |
| return lap->apm->getDevicesForStream((AudioSystem::stream_type)stream); |
| } |
| |
| static audio_io_handle_t ap_get_output_for_effect(struct audio_policy *pol, |
| const struct effect_descriptor_s *desc) |
| { |
| struct legacy_audio_policy *lap = to_lap(pol); |
| return lap->apm->getOutputForEffect(desc); |
| } |
| |
| static int ap_register_effect(struct audio_policy *pol, |
| const struct effect_descriptor_s *desc, |
| audio_io_handle_t io, |
| uint32_t strategy, |
| int session, |
| int id) |
| { |
| struct legacy_audio_policy *lap = to_lap(pol); |
| return lap->apm->registerEffect(desc, io, strategy, session, id); |
| } |
| |
| static int ap_unregister_effect(struct audio_policy *pol, int id) |
| { |
| struct legacy_audio_policy *lap = to_lap(pol); |
| return lap->apm->unregisterEffect(id); |
| } |
| |
| static int ap_set_effect_enabled(struct audio_policy *pol, int id, bool enabled) |
| { |
| struct legacy_audio_policy *lap = to_lap(pol); |
| return lap->apm->setEffectEnabled(id, enabled); |
| } |
| |
| static bool ap_is_stream_active(const struct audio_policy *pol, audio_stream_type_t stream, |
| uint32_t in_past_ms) |
| { |
| const struct legacy_audio_policy *lap = to_clap(pol); |
| return lap->apm->isStreamActive((int) stream, in_past_ms); |
| } |
| |
| static int ap_dump(const struct audio_policy *pol, int fd) |
| { |
| const struct legacy_audio_policy *lap = to_clap(pol); |
| return lap->apm->dump(fd); |
| } |
| |
| static int create_legacy_ap(const struct audio_policy_device *device, |
| struct audio_policy_service_ops *aps_ops, |
| void *service, |
| struct audio_policy **ap) |
| { |
| struct legacy_audio_policy *lap; |
| int ret; |
| |
| if (!service || !aps_ops) |
| return -EINVAL; |
| |
| lap = (struct legacy_audio_policy *)calloc(1, sizeof(*lap)); |
| if (!lap) |
| return -ENOMEM; |
| |
| lap->policy.set_device_connection_state = ap_set_device_connection_state; |
| lap->policy.get_device_connection_state = ap_get_device_connection_state; |
| lap->policy.set_phone_state = ap_set_phone_state; |
| lap->policy.set_ringer_mode = ap_set_ringer_mode; |
| lap->policy.set_force_use = ap_set_force_use; |
| lap->policy.get_force_use = ap_get_force_use; |
| lap->policy.set_can_mute_enforced_audible = |
| ap_set_can_mute_enforced_audible; |
| lap->policy.init_check = ap_init_check; |
| lap->policy.get_output = ap_get_output; |
| lap->policy.start_output = ap_start_output; |
| lap->policy.stop_output = ap_stop_output; |
| lap->policy.release_output = ap_release_output; |
| lap->policy.get_input = ap_get_input; |
| lap->policy.start_input = ap_start_input; |
| lap->policy.stop_input = ap_stop_input; |
| lap->policy.release_input = ap_release_input; |
| lap->policy.init_stream_volume = ap_init_stream_volume; |
| lap->policy.set_stream_volume_index = ap_set_stream_volume_index; |
| lap->policy.get_stream_volume_index = ap_get_stream_volume_index; |
| lap->policy.set_stream_volume_index_for_device = ap_set_stream_volume_index_for_device; |
| lap->policy.get_stream_volume_index_for_device = ap_get_stream_volume_index_for_device; |
| lap->policy.get_strategy_for_stream = ap_get_strategy_for_stream; |
| lap->policy.get_devices_for_stream = ap_get_devices_for_stream; |
| lap->policy.get_output_for_effect = ap_get_output_for_effect; |
| lap->policy.register_effect = ap_register_effect; |
| lap->policy.unregister_effect = ap_unregister_effect; |
| lap->policy.set_effect_enabled = ap_set_effect_enabled; |
| lap->policy.is_stream_active = ap_is_stream_active; |
| lap->policy.dump = ap_dump; |
| |
| lap->service = service; |
| lap->aps_ops = aps_ops; |
| lap->service_client = |
| new AudioPolicyCompatClient(aps_ops, service); |
| if (!lap->service_client) { |
| ret = -ENOMEM; |
| goto err_new_compat_client; |
| } |
| |
| lap->apm = createAudioPolicyManager(lap->service_client); |
| if (!lap->apm) { |
| ret = -ENOMEM; |
| goto err_create_apm; |
| } |
| |
| *ap = &lap->policy; |
| return 0; |
| |
| err_create_apm: |
| delete lap->service_client; |
| err_new_compat_client: |
| free(lap); |
| *ap = NULL; |
| return ret; |
| } |
| |
| static int destroy_legacy_ap(const struct audio_policy_device *ap_dev, |
| struct audio_policy *ap) |
| { |
| struct legacy_audio_policy *lap = to_lap(ap); |
| |
| if (!lap) |
| return 0; |
| |
| if (lap->apm) |
| destroyAudioPolicyManager(lap->apm); |
| if (lap->service_client) |
| delete lap->service_client; |
| free(lap); |
| return 0; |
| } |
| |
| static int legacy_ap_dev_close(hw_device_t* device) |
| { |
| if (device) |
| free(device); |
| return 0; |
| } |
| |
| static int legacy_ap_dev_open(const hw_module_t* module, const char* name, |
| hw_device_t** device) |
| { |
| struct legacy_ap_device *dev; |
| |
| if (strcmp(name, AUDIO_POLICY_INTERFACE) != 0) |
| return -EINVAL; |
| |
| dev = (struct legacy_ap_device *)calloc(1, sizeof(*dev)); |
| if (!dev) |
| return -ENOMEM; |
| |
| dev->device.common.tag = HARDWARE_DEVICE_TAG; |
| dev->device.common.version = 0; |
| dev->device.common.module = const_cast<hw_module_t*>(module); |
| dev->device.common.close = legacy_ap_dev_close; |
| dev->device.create_audio_policy = create_legacy_ap; |
| dev->device.destroy_audio_policy = destroy_legacy_ap; |
| |
| *device = &dev->device.common; |
| |
| return 0; |
| } |
| |
| static struct hw_module_methods_t legacy_ap_module_methods = { |
| open: legacy_ap_dev_open |
| }; |
| |
| struct legacy_ap_module HAL_MODULE_INFO_SYM = { |
| module: { |
| common: { |
| tag: HARDWARE_MODULE_TAG, |
| version_major: 1, |
| version_minor: 0, |
| id: AUDIO_POLICY_HARDWARE_MODULE_ID, |
| name: "LEGACY Audio Policy HAL", |
| author: "The Android Open Source Project", |
| methods: &legacy_ap_module_methods, |
| dso : NULL, |
| reserved : {0}, |
| }, |
| }, |
| }; |
| |
| }; // extern "C" |
| |
| }; // namespace android_audio_legacy |
