/*
* 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