/*
* 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,
const audio_offload_info_t *offloadInfo)
{
struct legacy_audio_policy *lap = to_lap(pol);
ALOGV("%s: tid %d", __func__, gettid());
return lap->apm->getOutput((AudioSystem::stream_type)stream,
sampling_rate, format, channelMask,
(AudioSystem::output_flags)flags,
offloadInfo);
}
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, 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 bool ap_is_stream_active_remotely(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->isStreamActiveRemotely((int) stream, in_past_ms);
}
static bool ap_is_source_active(const struct audio_policy *pol, audio_source_t source)
{
const struct legacy_audio_policy *lap = to_clap(pol);
return lap->apm->isSourceActive(source);
}
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 bool ap_is_offload_supported(const struct audio_policy *pol,
const audio_offload_info_t *info)
{
const struct legacy_audio_policy *lap = to_clap(pol);
return lap->apm->isOffloadSupported(*info);
}
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.is_stream_active_remotely = ap_is_stream_active_remotely;
lap->policy.is_source_active = ap_is_source_active;
lap->policy.dump = ap_dump;
lap->policy.is_offload_supported = ap_is_offload_supported;
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