57 lines
2.1 KiB
Text
57 lines
2.1 KiB
Text
/*
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* Copyright (C) 2016 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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package android.hardware.usb@1.0;
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import IUsbCallback;
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interface IUsb {
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/**
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* This function is used to change the port role of a specific port.
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* For example, when PD_SWAP or PR_SWAP is supported.
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* This is function is asynchronous. The status of the role switch
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* will be informed through IUsbCallback object's notifyPortStatusChange
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* method.
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*
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* @param portName name of the port for which the role has to be changed
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* @param role the new port role.
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*/
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oneway switchRole(string portName, PortRole role);
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/**
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* This function is used to register a callback function which is
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* called by the HAL whenever there is a change in the port state.
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* i.e. DATA_ROLE, POWER_ROLE or MODE.
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*
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* Also the same callback object would be called to inform the caller
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* of the roleSwitch status.
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*
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* @param callback IUsbCallback object used to convey status to the
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* userspace.
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*/
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oneway setCallback(IUsbCallback callback);
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/**
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* This functions is used to request the hal for the current status
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* status of the Type-C ports. This method is async/oneway. The result of the
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* query would be sent through the IUsbCallback object's notifyRoleSwitchStatus
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* to the caller. This api would would let the caller know of the number
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* of type-c ports that are present and their connection status through the
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* PortStatus type.
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*/
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oneway queryPortStatus();
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};
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