mbed-os/usb/device/USBPhy/USBPhyEvents.h

109 lines
3.0 KiB
C++

/*
* Copyright (c) 2018-2019, Arm Limited and affiliates.
* SPDX-License-Identifier: Apache-2.0
*
* 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.
*/
#ifndef USBPHY_EVENTS_H
#define USBPHY_EVENTS_H
#include "USBPhyTypes.h"
/** Event handler for USBPhy
*
* This class is the event handler for the USBPhy class. Any events generated
* by USBPhy are passed to this class via the virtual functions.
*
* @ingroup usb_device_core
*
*/
class USBPhyEvents {
public:
USBPhyEvents() {};
virtual ~USBPhyEvents() {};
/**
* Callback called when a bus reset occurs
* @note called in the contex of USBPhy::process
*/
virtual void reset() = 0;
/**
* Callback called when an endpoint 0 setup packet is received
* @note called in the contex of USBPhy::process
*/
virtual void ep0_setup() = 0;
/**
* Callback called when an endpoint 0 out packet is received
* @note called in the contex of USBPhy::process
*/
virtual void ep0_out() = 0;
/**
* Callback called when an endpoint 0 in packet is received
* @note called in the contex of USBPhy::process
*/
virtual void ep0_in() = 0;
/**
* Callback called USB power is applied or removed
*
* @param powered true if USB power is present, false otherwise
* @note called in the contex of USBPhy::process
*/
virtual void power(bool powered) = 0;
/**
* Callback called when entering or leaving suspend mode
*
* @param suspended true if entering suspend mode false otherwise
* @note called in the contex of USBPhy::process
*/
virtual void suspend(bool suspended) = 0;
/**
* Callback called on start of frame
*
* @param frame_number The current frame number
* @note This callback is enabled/disabled by
* calling USBPhy::sof_enable / USBPhy::sof_disable
* @note called in the contex of USBPhy::process
*/
virtual void sof(int frame_number) = 0;
/**
* Callback called on the reception of an OUT packet
*
* @param endpoint Endpoint which received the OUT packet
* @note called in the contex of USBPhy::process
*/
virtual void out(usb_ep_t endpoint) = 0;
/**
* Callback called on the transmission of an IN packet
*
* @param endpoint Endpoint which sent the IN packet
* @note called in the contex of USBPhy::process
*/
virtual void in(usb_ep_t endpoint) = 0;
/**
* Callback called to indicate the USB processing needs to be done
*/
virtual void start_process() = 0;
};
#endif