Files
hardware_interfaces/audio/2.0/default/DevicesFactory.cpp
Mikhail Naganov f811acf049 Revert "audiohal: Add diagnostics to investigate HAL call crashes"
This reverts commit 6c0f76a684.

Since the root cause of the crash has been established, there is no need to keep this code around.

Bug: 36225019
Change-Id: I74e570e863a0cdec5d9029f1672e2e8066c246b5
2017-05-31 19:59:21 +00:00

109 lines
3.4 KiB
C++

/*
* 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.
*/
#define LOG_TAG "DevicesFactoryHAL"
#include <string.h>
#include <android/log.h>
#include "Device.h"
#include "DevicesFactory.h"
#include "PrimaryDevice.h"
namespace android {
namespace hardware {
namespace audio {
namespace V2_0 {
namespace implementation {
// static
const char* DevicesFactory::deviceToString(IDevicesFactory::Device device) {
switch (device) {
case IDevicesFactory::Device::PRIMARY: return AUDIO_HARDWARE_MODULE_ID_PRIMARY;
case IDevicesFactory::Device::A2DP: return AUDIO_HARDWARE_MODULE_ID_A2DP;
case IDevicesFactory::Device::USB: return AUDIO_HARDWARE_MODULE_ID_USB;
case IDevicesFactory::Device::R_SUBMIX: return AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX;
case IDevicesFactory::Device::STUB: return AUDIO_HARDWARE_MODULE_ID_STUB;
}
return nullptr;
}
// static
int DevicesFactory::loadAudioInterface(const char *if_name, audio_hw_device_t **dev)
{
const hw_module_t *mod;
int rc;
rc = hw_get_module_by_class(AUDIO_HARDWARE_MODULE_ID, if_name, &mod);
if (rc) {
ALOGE("%s couldn't load audio hw module %s.%s (%s)", __func__,
AUDIO_HARDWARE_MODULE_ID, if_name, strerror(-rc));
goto out;
}
rc = audio_hw_device_open(mod, dev);
if (rc) {
ALOGE("%s couldn't open audio hw device in %s.%s (%s)", __func__,
AUDIO_HARDWARE_MODULE_ID, if_name, strerror(-rc));
goto out;
}
if ((*dev)->common.version < AUDIO_DEVICE_API_VERSION_MIN) {
ALOGE("%s wrong audio hw device version %04x", __func__, (*dev)->common.version);
rc = -EINVAL;
audio_hw_device_close(*dev);
goto out;
}
return OK;
out:
*dev = NULL;
return rc;
}
// Methods from ::android::hardware::audio::V2_0::IDevicesFactory follow.
Return<void> DevicesFactory::openDevice(IDevicesFactory::Device device, openDevice_cb _hidl_cb) {
audio_hw_device_t *halDevice;
Result retval(Result::INVALID_ARGUMENTS);
sp<IDevice> result;
const char* moduleName = deviceToString(device);
if (moduleName != nullptr) {
int halStatus = loadAudioInterface(moduleName, &halDevice);
if (halStatus == OK) {
if (device == IDevicesFactory::Device::PRIMARY) {
result = new PrimaryDevice(halDevice);
} else {
result = new ::android::hardware::audio::V2_0::implementation::
Device(halDevice);
}
retval = Result::OK;
} else if (halStatus == -EINVAL) {
retval = Result::NOT_INITIALIZED;
}
}
_hidl_cb(retval, result);
return Void();
}
IDevicesFactory* HIDL_FETCH_IDevicesFactory(const char* /* name */) {
return new DevicesFactory();
}
} // namespace implementation
} // namespace V2_0
} // namespace audio
} // namespace hardware
} // namespace android