UsbPnP.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 USBPNP_H
#define USBPNP_H

#include "pedigree/kernel/compiler.h"
#include "pedigree/kernel/processor/types.h"
#include "pedigree/kernel/utilities/List.h"
#include "pedigree/kernel/utilities/new"

class Device;
class UsbDevice;

enum UsbPnPConstants
{
    VendorIdNone = 0xFFFF,
    ProductIdNone = 0xFFFF,
    ClassNone = 0xFF,
    SubclassNone = 0xFF,
    ProtocolNone = 0xFF,
};

class EXPORTED_PUBLIC UsbPnP
{
  private:
    typedef UsbDevice *(*callback_t)(UsbDevice *);

  public:
    UsbPnP();
    virtual ~UsbPnP();

    static UsbPnP &instance()
    {
        return m_Instance;
    }

    void registerCallback(
        uint16_t nVendorId, uint16_t nProductId, callback_t callback);

    void registerCallback(
        uint8_t nClass, uint8_t nSubclass, uint8_t nProtocol,
        callback_t callback);

    bool probeDevice(Device *pDeviceBase);

  private:
    Device *doProbe(Device *pDeviceBase);

    static UsbPnP m_Instance;

    void reprobeDevices(Device *pParent);

    struct CallbackItem
    {
        callback_t callback;

        uint16_t nVendorId;
        uint16_t nProductId;

        uint8_t nClass;
        uint8_t nSubclass;
        uint8_t nProtocol;
    };

    List<CallbackItem *> m_Callbacks;
};

#endif