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 "modules/system/usb/UsbDevice.h"
#include "pedigree/kernel/compiler.h"
#include "pedigree/kernel/processor/types.h"
#include "pedigree/kernel/utilities/String.h"
#include "pedigree/kernel/utilities/new"

class HidReport;

class UsbHumanInterfaceDevice : public UsbDevice
{
  public:
    UsbHumanInterfaceDevice(UsbDevice *dev);
    virtual ~UsbHumanInterfaceDevice();

    virtual void initialiseDriver();

    virtual void getName(String &str)
    {
        str = "USB Human Interface Device";
    }

  private:
    struct HidDescriptor
    {
        inline HidDescriptor(UnknownDescriptor *pDes)
        {
            Descriptor *pDescriptor =
                static_cast<Descriptor *>(pDes->pDescriptor);
            nDescriptorLength = pDescriptor->nDescriptorLength;
            delete pDescriptor;
        }

        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();

    Endpoint *m_pInEndpoint;

    HidReport *m_pReport;

    uint8_t *m_pInReportBuffer;
    uint8_t *m_pOldInReportBuffer;
};

#endif