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/*
* Copyright (C) 2016 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.
*/
#include <string.h>
#define LOG_TAG "HalHidl"
#include <media/AudioContainers.h>
#include <media/AudioParameter.h>
#include <utils/Log.h>
#include "ConversionHelperHidl.h"
namespace android {
namespace CPP_VERSION {
using namespace ::android::hardware::audio::common::CPP_VERSION;
using namespace ::android::hardware::audio::CPP_VERSION;
// static
status_t ConversionHelperHidl::keysFromHal(const String8& keys, hidl_vec<hidl_string> *hidlKeys) {
AudioParameter halKeys(keys);
if (halKeys.size() == 0) return BAD_VALUE;
hidlKeys->resize(halKeys.size());
//FIXME: keyStreamSupportedChannels and keyStreamSupportedSamplingRates come with a
// "keyFormat=<value>" pair. We need to transform it into a single key string so that it is
// carried over to the legacy HAL via HIDL.
String8 value;
bool keepFormatValue = halKeys.size() == 2 &&
(halKeys.get(String8(AudioParameter::keyStreamSupportedChannels), value) == NO_ERROR ||
halKeys.get(String8(AudioParameter::keyStreamSupportedSamplingRates), value) == NO_ERROR);
// When querying encapsulation capabilities, "keyRouting=<value>" pair is used to identify
// the device. We need to transform it into a single key string so that it is carried over to
// the legacy HAL via HIDL.
bool keepRoutingValue =
halKeys.get(String8(AUDIO_PARAMETER_DEVICE_SUP_ENCAPSULATION_MODES),
value) == NO_ERROR ||
halKeys.get(String8(AUDIO_PARAMETER_DEVICE_SUP_ENCAPSULATION_METADATA_TYPES),
value) == NO_ERROR;
for (size_t i = 0; i < halKeys.size(); ++i) {
String8 key;
status_t status = halKeys.getAt(i, key);
if (status != OK) return status;
if ((keepFormatValue && key == AudioParameter::keyFormat) ||
(keepRoutingValue && key == AudioParameter::keyRouting)) {
AudioParameter keepValueParam;
halKeys.getAt(i, key, value);
keepValueParam.add(key, value);
key = keepValueParam.toString();
}
(*hidlKeys)[i] = key.string();
}
return OK;
}
// static
status_t ConversionHelperHidl::parametersFromHal(
const String8& kvPairs, hidl_vec<ParameterValue> *hidlParams) {
AudioParameter params(kvPairs);
if (params.size() == 0) return BAD_VALUE;
hidlParams->resize(params.size());
for (size_t i = 0; i < params.size(); ++i) {
String8 key, value;
status_t status = params.getAt(i, key, value);
if (status != OK) return status;
(*hidlParams)[i].key = key.string();
(*hidlParams)[i].value = value.string();
}
return OK;
}
// static
void ConversionHelperHidl::parametersToHal(
const hidl_vec<ParameterValue>& parameters, String8 *values) {
AudioParameter params;
for (size_t i = 0; i < parameters.size(); ++i) {
params.add(String8(parameters[i].key.c_str()), String8(parameters[i].value.c_str()));
}
values->setTo(params.toString());
}
ConversionHelperHidl::ConversionHelperHidl(const char* className)
: mClassName(className) {
}
// static
status_t ConversionHelperHidl::analyzeResult(const Result& result) {
switch (result) {
case Result::OK: return OK;
case Result::INVALID_ARGUMENTS: return BAD_VALUE;
case Result::INVALID_STATE: return NOT_ENOUGH_DATA;
case Result::NOT_INITIALIZED: return NO_INIT;
case Result::NOT_SUPPORTED: return INVALID_OPERATION;
default: return NO_INIT;
}
}
void ConversionHelperHidl::emitError(const char* funcName, const char* description) {
ALOGE("%s %p %s: %s (from rpc)", mClassName, this, funcName, description);
}
#if MAJOR_VERSION >= 4
// TODO: Use the same implementation in the hal when it moves to a util library.
static std::string deviceAddressToHal(const DeviceAddress& address) {
// HAL assumes that the address is NUL-terminated.
char halAddress[AUDIO_DEVICE_MAX_ADDRESS_LEN];
memset(halAddress, 0, sizeof(halAddress));
audio_devices_t halDevice = static_cast<audio_devices_t>(address.device);
if (getAudioDeviceOutAllA2dpSet().count(halDevice) > 0 ||
halDevice == AUDIO_DEVICE_IN_BLUETOOTH_A2DP) {
snprintf(halAddress, sizeof(halAddress), "%02X:%02X:%02X:%02X:%02X:%02X",
address.address.mac[0], address.address.mac[1], address.address.mac[2],
address.address.mac[3], address.address.mac[4], address.address.mac[5]);
} else if (halDevice == AUDIO_DEVICE_OUT_IP || halDevice == AUDIO_DEVICE_IN_IP) {
snprintf(halAddress, sizeof(halAddress), "%d.%d.%d.%d", address.address.ipv4[0],
address.address.ipv4[1], address.address.ipv4[2], address.address.ipv4[3]);
} else if (getAudioDeviceOutAllUsbSet().count(halDevice) > 0 ||
getAudioDeviceInAllUsbSet().count(halDevice) > 0) {
snprintf(halAddress, sizeof(halAddress), "card=%d;device=%d", address.address.alsa.card,
address.address.alsa.device);
} else if (halDevice == AUDIO_DEVICE_OUT_BUS || halDevice == AUDIO_DEVICE_IN_BUS) {
snprintf(halAddress, sizeof(halAddress), "%s", address.busAddress.c_str());
} else if (halDevice == AUDIO_DEVICE_OUT_REMOTE_SUBMIX ||
halDevice == AUDIO_DEVICE_IN_REMOTE_SUBMIX) {
snprintf(halAddress, sizeof(halAddress), "%s", address.rSubmixAddress.c_str());
} else {
snprintf(halAddress, sizeof(halAddress), "%s", address.busAddress.c_str());
}
return halAddress;
}
//local conversion helpers
static audio_microphone_channel_mapping_t channelMappingToHal(AudioMicrophoneChannelMapping mapping) {
switch (mapping) {
case AudioMicrophoneChannelMapping::UNUSED:
return AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED;
case AudioMicrophoneChannelMapping::DIRECT:
return AUDIO_MICROPHONE_CHANNEL_MAPPING_DIRECT;
case AudioMicrophoneChannelMapping::PROCESSED:
return AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED;
default:
LOG_ALWAYS_FATAL("Unknown channelMappingToHal conversion %d", mapping);
}
}
static audio_microphone_location_t locationToHal(AudioMicrophoneLocation location) {
switch (location) {
case AudioMicrophoneLocation::UNKNOWN:
return AUDIO_MICROPHONE_LOCATION_UNKNOWN;
case AudioMicrophoneLocation::MAINBODY:
return AUDIO_MICROPHONE_LOCATION_MAINBODY;
case AudioMicrophoneLocation::MAINBODY_MOVABLE:
return AUDIO_MICROPHONE_LOCATION_MAINBODY_MOVABLE;
case AudioMicrophoneLocation::PERIPHERAL:
return AUDIO_MICROPHONE_LOCATION_PERIPHERAL;
default:
LOG_ALWAYS_FATAL("Unknown locationToHal conversion %d", location);
}
}
static audio_microphone_directionality_t directionalityToHal(AudioMicrophoneDirectionality dir) {
switch (dir) {
case AudioMicrophoneDirectionality::UNKNOWN:
return AUDIO_MICROPHONE_DIRECTIONALITY_UNKNOWN;
case AudioMicrophoneDirectionality::OMNI:
return AUDIO_MICROPHONE_DIRECTIONALITY_OMNI;
case AudioMicrophoneDirectionality::BI_DIRECTIONAL:
return AUDIO_MICROPHONE_DIRECTIONALITY_BI_DIRECTIONAL;
case AudioMicrophoneDirectionality::CARDIOID:
return AUDIO_MICROPHONE_DIRECTIONALITY_CARDIOID;
case AudioMicrophoneDirectionality::HYPER_CARDIOID:
return AUDIO_MICROPHONE_DIRECTIONALITY_HYPER_CARDIOID;
case AudioMicrophoneDirectionality::SUPER_CARDIOID:
return AUDIO_MICROPHONE_DIRECTIONALITY_SUPER_CARDIOID;
default:
LOG_ALWAYS_FATAL("Unknown directionalityToHal conversion %d", dir);
}
}
void microphoneInfoToHal(const MicrophoneInfo& src,
audio_microphone_characteristic_t *pDst) {
if (pDst != NULL) {
snprintf(pDst->device_id, sizeof(pDst->device_id),
"%s", src.deviceId.c_str());
pDst->device = static_cast<audio_devices_t>(src.deviceAddress.device);
snprintf(pDst->address, sizeof(pDst->address),
"%s", deviceAddressToHal(src.deviceAddress).c_str());
if (src.channelMapping.size() > AUDIO_CHANNEL_COUNT_MAX) {
ALOGW("microphoneInfoToStruct found %zu channelMapping elements. Max expected is %d",
src.channelMapping.size(), AUDIO_CHANNEL_COUNT_MAX);
}
size_t ch;
for (ch = 0; ch < src.channelMapping.size() && ch < AUDIO_CHANNEL_COUNT_MAX; ch++) {
pDst->channel_mapping[ch] = channelMappingToHal(src.channelMapping[ch]);
}
for (; ch < AUDIO_CHANNEL_COUNT_MAX; ch++) {
pDst->channel_mapping[ch] = AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED;
}
pDst->location = locationToHal(src.location);
pDst->group = (audio_microphone_group_t)src.group;
pDst->index_in_the_group = (unsigned int)src.indexInTheGroup;
pDst->sensitivity = src.sensitivity;
pDst->max_spl = src.maxSpl;
pDst->min_spl = src.minSpl;
pDst->directionality = directionalityToHal(src.directionality);
pDst->num_frequency_responses = (unsigned int)src.frequencyResponse.size();
if (pDst->num_frequency_responses > AUDIO_MICROPHONE_MAX_FREQUENCY_RESPONSES) {
ALOGW("microphoneInfoToStruct found %d frequency responses. Max expected is %d",
pDst->num_frequency_responses, AUDIO_MICROPHONE_MAX_FREQUENCY_RESPONSES);
pDst->num_frequency_responses = AUDIO_MICROPHONE_MAX_FREQUENCY_RESPONSES;
}
for (size_t k = 0; k < pDst->num_frequency_responses; k++) {
pDst->frequency_responses[0][k] = src.frequencyResponse[k].frequency;
pDst->frequency_responses[1][k] = src.frequencyResponse[k].level;
}
pDst->geometric_location.x = src.position.x;
pDst->geometric_location.y = src.position.y;
pDst->geometric_location.z = src.position.z;
pDst->orientation.x = src.orientation.x;
pDst->orientation.y = src.orientation.y;
pDst->orientation.z = src.orientation.z;
}
}
#endif
} // namespace CPP_VERSION
} // namespace android
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