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/* mbed USBHost Library
* Copyright (c) 2006-2013 ARM Limited
*
* 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 USBHOSTHUB_H
#define USBHOSTHUB_H
#include "USBHostConf.h"
#if MAX_HUB_NB
#include "USBHostTypes.h"
#include "IUSBEnumerator.h"
class USBHost;
class USBDeviceConnected;
class USBEndpoint;
/**
* A class to use a USB Hub
*/
class USBHostHub : public IUSBEnumerator {
public:
/**
* Constructor
*/
USBHostHub();
/**
* Check if a USB Hub is connected
*
* @return true if a serial device is connected
*/
bool connected();
/**
* Try to connect device
*
* @param dev device to connect
* @return true if connection was successful
*/
bool connect(USBDeviceConnected * dev);
/**
* Automatically called by USBHost when a device
* has been enumerated by usb_thread
*
* @param dev device connected
*/
void deviceConnected(USBDeviceConnected * dev);
/**
* Automatically called by USBHost when a device
* has been disconnected from this hub
*
* @param dev device disconnected
*/
void deviceDisconnected(USBDeviceConnected * dev);
/**
* Rest a specific port
*
* @param port port number
*/
void portReset(uint8_t port);
/*
* Called by USBHost to set the instance of USBHost
*
* @param host host instance
*/
void setHost(USBHost * host);
/**
* Called by USBhost when a hub has been disconnected
*/
void hubDisconnected();
protected:
//From IUSBEnumerator
virtual void setVidPid(uint16_t vid, uint16_t pid);
virtual bool parseInterface(uint8_t intf_nb, uint8_t intf_class, uint8_t intf_subclass, uint8_t intf_protocol); //Must return true if the interface should be parsed
virtual bool useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir); //Must return true if the endpoint will be used
private:
USBHost * host;
USBDeviceConnected * dev;
bool dev_connected;
USBEndpoint * int_in;
uint8_t nb_port;
uint8_t hub_characteristics;
void rxHandler();
uint8_t buf[sizeof(HubDescriptor)];
int hub_intf;
bool hub_device_found;
void setPortFeature(uint32_t feature, uint8_t port);
void clearPortFeature(uint32_t feature, uint8_t port);
uint32_t getPortStatus(uint8_t port);
USBDeviceConnected * device_children[MAX_HUB_PORT];
void init();
void disconnect();
};
#endif
#endif
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