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