452 lines
16 KiB
C++
452 lines
16 KiB
C++
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "legacy_audio_policy_hal"
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//#define LOG_NDEBUG 0
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#include <stdint.h>
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#include <hardware/hardware.h>
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#include <system/audio.h>
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#include <system/audio_policy.h>
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#include <hardware/audio_policy.h>
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#include <hardware_legacy/AudioPolicyInterface.h>
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#include <hardware_legacy/AudioSystemLegacy.h>
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#include "AudioPolicyCompatClient.h"
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namespace android_audio_legacy {
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extern "C" {
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struct legacy_ap_module {
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struct audio_policy_module module;
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};
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struct legacy_ap_device {
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struct audio_policy_device device;
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};
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struct legacy_audio_policy {
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struct audio_policy policy;
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void *service;
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struct audio_policy_service_ops *aps_ops;
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AudioPolicyCompatClient *service_client;
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AudioPolicyInterface *apm;
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};
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static inline struct legacy_audio_policy * to_lap(struct audio_policy *pol)
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{
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return reinterpret_cast<struct legacy_audio_policy *>(pol);
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}
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static inline const struct legacy_audio_policy * to_clap(const struct audio_policy *pol)
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{
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return reinterpret_cast<const struct legacy_audio_policy *>(pol);
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}
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static int ap_set_device_connection_state(struct audio_policy *pol,
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audio_devices_t device,
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audio_policy_dev_state_t state,
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const char *device_address)
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{
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struct legacy_audio_policy *lap = to_lap(pol);
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return lap->apm->setDeviceConnectionState(
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(AudioSystem::audio_devices)device,
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(AudioSystem::device_connection_state)state,
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device_address);
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}
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static audio_policy_dev_state_t ap_get_device_connection_state(
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const struct audio_policy *pol,
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audio_devices_t device,
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const char *device_address)
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{
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const struct legacy_audio_policy *lap = to_clap(pol);
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return (audio_policy_dev_state_t)lap->apm->getDeviceConnectionState(
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(AudioSystem::audio_devices)device,
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device_address);
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}
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static void ap_set_phone_state(struct audio_policy *pol, audio_mode_t state)
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{
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struct legacy_audio_policy *lap = to_lap(pol);
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// as this is the legacy API, don't change it to use audio_mode_t instead of int
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lap->apm->setPhoneState((int) state);
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}
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/* indicate a change in ringer mode */
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static void ap_set_ringer_mode(struct audio_policy *pol, uint32_t mode,
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uint32_t mask)
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{
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// deprecated, never called
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}
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/* force using a specific device category for the specified usage */
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static void ap_set_force_use(struct audio_policy *pol,
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audio_policy_force_use_t usage,
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audio_policy_forced_cfg_t config)
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{
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struct legacy_audio_policy *lap = to_lap(pol);
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lap->apm->setForceUse((AudioSystem::force_use)usage,
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(AudioSystem::forced_config)config);
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}
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/* retreive current device category forced for a given usage */
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static audio_policy_forced_cfg_t ap_get_force_use(
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const struct audio_policy *pol,
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audio_policy_force_use_t usage)
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{
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const struct legacy_audio_policy *lap = to_clap(pol);
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return (audio_policy_forced_cfg_t)lap->apm->getForceUse(
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(AudioSystem::force_use)usage);
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}
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/* if can_mute is true, then audio streams that are marked ENFORCED_AUDIBLE
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* can still be muted. */
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static void ap_set_can_mute_enforced_audible(struct audio_policy *pol,
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bool can_mute)
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{
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struct legacy_audio_policy *lap = to_lap(pol);
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lap->apm->setSystemProperty("ro.camera.sound.forced", can_mute ? "0" : "1");
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}
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static int ap_init_check(const struct audio_policy *pol)
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{
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const struct legacy_audio_policy *lap = to_clap(pol);
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return lap->apm->initCheck();
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}
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static audio_io_handle_t ap_get_output(struct audio_policy *pol,
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audio_stream_type_t stream,
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uint32_t sampling_rate,
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audio_format_t format,
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uint32_t channels,
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audio_output_flags_t flags)
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{
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struct legacy_audio_policy *lap = to_lap(pol);
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ALOGV("%s: tid %d", __func__, gettid());
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return lap->apm->getOutput((AudioSystem::stream_type)stream,
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sampling_rate, (int) format, channels,
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(AudioSystem::output_flags)flags);
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}
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static int ap_start_output(struct audio_policy *pol, audio_io_handle_t output,
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audio_stream_type_t stream, int session)
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{
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struct legacy_audio_policy *lap = to_lap(pol);
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return lap->apm->startOutput(output, (AudioSystem::stream_type)stream,
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session);
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}
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static int ap_stop_output(struct audio_policy *pol, audio_io_handle_t output,
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audio_stream_type_t stream, int session)
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{
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struct legacy_audio_policy *lap = to_lap(pol);
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return lap->apm->stopOutput(output, (AudioSystem::stream_type)stream,
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session);
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}
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static void ap_release_output(struct audio_policy *pol,
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audio_io_handle_t output)
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{
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struct legacy_audio_policy *lap = to_lap(pol);
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lap->apm->releaseOutput(output);
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}
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static audio_io_handle_t ap_get_input(struct audio_policy *pol, audio_source_t inputSource,
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uint32_t sampling_rate,
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audio_format_t format,
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uint32_t channels,
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audio_in_acoustics_t acoustics)
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{
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struct legacy_audio_policy *lap = to_lap(pol);
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return lap->apm->getInput((int) inputSource, sampling_rate, (int) format, channels,
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(AudioSystem::audio_in_acoustics)acoustics);
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}
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static int ap_start_input(struct audio_policy *pol, audio_io_handle_t input)
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{
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struct legacy_audio_policy *lap = to_lap(pol);
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return lap->apm->startInput(input);
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}
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static int ap_stop_input(struct audio_policy *pol, audio_io_handle_t input)
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{
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struct legacy_audio_policy *lap = to_lap(pol);
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return lap->apm->stopInput(input);
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}
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static void ap_release_input(struct audio_policy *pol, audio_io_handle_t input)
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{
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struct legacy_audio_policy *lap = to_lap(pol);
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lap->apm->releaseInput(input);
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}
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static void ap_init_stream_volume(struct audio_policy *pol,
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audio_stream_type_t stream, int index_min,
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int index_max)
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{
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struct legacy_audio_policy *lap = to_lap(pol);
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lap->apm->initStreamVolume((AudioSystem::stream_type)stream, index_min,
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index_max);
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}
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static int ap_set_stream_volume_index(struct audio_policy *pol,
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audio_stream_type_t stream,
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int index)
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{
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struct legacy_audio_policy *lap = to_lap(pol);
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return lap->apm->setStreamVolumeIndex((AudioSystem::stream_type)stream,
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index,
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AUDIO_DEVICE_OUT_DEFAULT);
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}
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static int ap_get_stream_volume_index(const struct audio_policy *pol,
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audio_stream_type_t stream,
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int *index)
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{
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const struct legacy_audio_policy *lap = to_clap(pol);
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return lap->apm->getStreamVolumeIndex((AudioSystem::stream_type)stream,
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index,
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AUDIO_DEVICE_OUT_DEFAULT);
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}
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static int ap_set_stream_volume_index_for_device(struct audio_policy *pol,
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audio_stream_type_t stream,
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int index,
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audio_devices_t device)
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{
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struct legacy_audio_policy *lap = to_lap(pol);
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return lap->apm->setStreamVolumeIndex((AudioSystem::stream_type)stream,
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index,
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device);
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}
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static int ap_get_stream_volume_index_for_device(const struct audio_policy *pol,
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audio_stream_type_t stream,
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int *index,
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audio_devices_t device)
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{
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const struct legacy_audio_policy *lap = to_clap(pol);
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return lap->apm->getStreamVolumeIndex((AudioSystem::stream_type)stream,
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index,
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device);
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}
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static uint32_t ap_get_strategy_for_stream(const struct audio_policy *pol,
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audio_stream_type_t stream)
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{
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const struct legacy_audio_policy *lap = to_clap(pol);
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return lap->apm->getStrategyForStream((AudioSystem::stream_type)stream);
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}
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static audio_devices_t ap_get_devices_for_stream(const struct audio_policy *pol,
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audio_stream_type_t stream)
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{
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const struct legacy_audio_policy *lap = to_clap(pol);
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return lap->apm->getDevicesForStream((AudioSystem::stream_type)stream);
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}
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static audio_io_handle_t ap_get_output_for_effect(struct audio_policy *pol,
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struct effect_descriptor_s *desc)
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{
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struct legacy_audio_policy *lap = to_lap(pol);
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return lap->apm->getOutputForEffect(desc);
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}
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static int ap_register_effect(struct audio_policy *pol,
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struct effect_descriptor_s *desc,
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audio_io_handle_t io,
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uint32_t strategy,
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int session,
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int id)
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{
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struct legacy_audio_policy *lap = to_lap(pol);
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return lap->apm->registerEffect(desc, io, strategy, session, id);
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}
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static int ap_unregister_effect(struct audio_policy *pol, int id)
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{
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struct legacy_audio_policy *lap = to_lap(pol);
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return lap->apm->unregisterEffect(id);
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}
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static int ap_set_effect_enabled(struct audio_policy *pol, int id, bool enabled)
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{
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struct legacy_audio_policy *lap = to_lap(pol);
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return lap->apm->setEffectEnabled(id, enabled);
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}
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static bool ap_is_stream_active(const struct audio_policy *pol, audio_stream_type_t stream,
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uint32_t in_past_ms)
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{
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const struct legacy_audio_policy *lap = to_clap(pol);
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return lap->apm->isStreamActive((int) stream, in_past_ms);
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}
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static int ap_dump(const struct audio_policy *pol, int fd)
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{
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const struct legacy_audio_policy *lap = to_clap(pol);
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return lap->apm->dump(fd);
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}
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static int create_legacy_ap(const struct audio_policy_device *device,
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struct audio_policy_service_ops *aps_ops,
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void *service,
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struct audio_policy **ap)
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{
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struct legacy_audio_policy *lap;
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int ret;
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if (!service || !aps_ops)
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return -EINVAL;
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lap = (struct legacy_audio_policy *)calloc(1, sizeof(*lap));
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if (!lap)
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return -ENOMEM;
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lap->policy.set_device_connection_state = ap_set_device_connection_state;
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lap->policy.get_device_connection_state = ap_get_device_connection_state;
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lap->policy.set_phone_state = ap_set_phone_state;
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lap->policy.set_ringer_mode = ap_set_ringer_mode;
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lap->policy.set_force_use = ap_set_force_use;
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lap->policy.get_force_use = ap_get_force_use;
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lap->policy.set_can_mute_enforced_audible =
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ap_set_can_mute_enforced_audible;
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lap->policy.init_check = ap_init_check;
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lap->policy.get_output = ap_get_output;
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lap->policy.start_output = ap_start_output;
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lap->policy.stop_output = ap_stop_output;
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lap->policy.release_output = ap_release_output;
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lap->policy.get_input = ap_get_input;
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lap->policy.start_input = ap_start_input;
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lap->policy.stop_input = ap_stop_input;
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lap->policy.release_input = ap_release_input;
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lap->policy.init_stream_volume = ap_init_stream_volume;
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lap->policy.set_stream_volume_index = ap_set_stream_volume_index;
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lap->policy.get_stream_volume_index = ap_get_stream_volume_index;
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lap->policy.set_stream_volume_index_for_device = ap_set_stream_volume_index_for_device;
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lap->policy.get_stream_volume_index_for_device = ap_get_stream_volume_index_for_device;
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lap->policy.get_strategy_for_stream = ap_get_strategy_for_stream;
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lap->policy.get_devices_for_stream = ap_get_devices_for_stream;
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lap->policy.get_output_for_effect = ap_get_output_for_effect;
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lap->policy.register_effect = ap_register_effect;
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lap->policy.unregister_effect = ap_unregister_effect;
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lap->policy.set_effect_enabled = ap_set_effect_enabled;
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lap->policy.is_stream_active = ap_is_stream_active;
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lap->policy.dump = ap_dump;
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lap->service = service;
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lap->aps_ops = aps_ops;
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lap->service_client =
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new AudioPolicyCompatClient(aps_ops, service);
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if (!lap->service_client) {
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ret = -ENOMEM;
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goto err_new_compat_client;
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}
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lap->apm = createAudioPolicyManager(lap->service_client);
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if (!lap->apm) {
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ret = -ENOMEM;
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goto err_create_apm;
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}
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*ap = &lap->policy;
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return 0;
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err_create_apm:
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delete lap->service_client;
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err_new_compat_client:
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free(lap);
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*ap = NULL;
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return ret;
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}
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static int destroy_legacy_ap(const struct audio_policy_device *ap_dev,
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struct audio_policy *ap)
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{
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struct legacy_audio_policy *lap = to_lap(ap);
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if (!lap)
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return 0;
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if (lap->apm)
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destroyAudioPolicyManager(lap->apm);
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if (lap->service_client)
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delete lap->service_client;
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free(lap);
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return 0;
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}
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static int legacy_ap_dev_close(hw_device_t* device)
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{
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if (device)
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free(device);
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return 0;
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}
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static int legacy_ap_dev_open(const hw_module_t* module, const char* name,
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hw_device_t** device)
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{
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struct legacy_ap_device *dev;
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if (strcmp(name, AUDIO_POLICY_INTERFACE) != 0)
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return -EINVAL;
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dev = (struct legacy_ap_device *)calloc(1, sizeof(*dev));
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if (!dev)
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return -ENOMEM;
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dev->device.common.tag = HARDWARE_DEVICE_TAG;
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dev->device.common.version = 0;
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dev->device.common.module = const_cast<hw_module_t*>(module);
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dev->device.common.close = legacy_ap_dev_close;
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dev->device.create_audio_policy = create_legacy_ap;
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dev->device.destroy_audio_policy = destroy_legacy_ap;
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*device = &dev->device.common;
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return 0;
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}
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static struct hw_module_methods_t legacy_ap_module_methods = {
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open: legacy_ap_dev_open
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};
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struct legacy_ap_module HAL_MODULE_INFO_SYM = {
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module: {
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common: {
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tag: HARDWARE_MODULE_TAG,
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version_major: 1,
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version_minor: 0,
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id: AUDIO_POLICY_HARDWARE_MODULE_ID,
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name: "LEGACY Audio Policy HAL",
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author: "The Android Open Source Project",
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methods: &legacy_ap_module_methods,
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dso : NULL,
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reserved : {0},
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},
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},
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};
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}; // extern "C"
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}; // namespace android_audio_legacy
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