UsbHumanInterfaceDevice.h

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
#ifndef USBHUMANINTERFACEDEVICE_H
#define USBHUMANINTERFACEDEVICE_H
 
#include "pedigree/kernel/compiler.h"
#include "pedigree/kernel/processor/types.h"
#include "pedigree/kernel/utilities/String.h"
#include "pedigree/kernel/utilities/new"
 
#include "modules/system/usb/UsbDevice.h"
#include "modules/system/usb/UsbHub.h"
 
class HidReport;
 
class UsbHumanInterfaceDevice : public UsbDevice {
 public:
  UsbHumanInterfaceDevice(UsbDevice* dev);
  virtual ~UsbHumanInterfaceDevice();
 
  virtual void initialiseDriver();
 
  virtual void getName(String& str) {
    str.assign("USB Human Interface Device", 27);
  }
 
 private:
  struct HidDescriptor {
    inline HidDescriptor(UnknownDescriptor* pDes) {
      Descriptor* pDescriptor = static_cast<Descriptor*>(pDes->pDescriptor);
      nDescriptorLength = pDescriptor->nDescriptorLength;
    }
 
    struct Descriptor {
      uint8_t nLength;
      uint8_t nType;
      uint16_t nBcdHidRelease;
      uint8_t nCountryCode;
      uint8_t nDescriptors;
      uint8_t nDescriptorType;
      uint16_t nDescriptorLength;
    } PACKED;
 
    uint16_t nDescriptorLength;
  };
 
  static void callback(uintptr_t pParam, ssize_t ret);
  void inputHandler(size_t bytes);
 
  Endpoint* m_pInEndpoint;
 
  HidReport* m_pReport;
 
  UsbInterruptInHandle m_InterruptIn;
 
  uint8_t* m_pInReportBuffer;
  uint8_t* m_pOldInReportBuffer;
 
  bool m_ReceivedInput;
};
 
#endif