include/pedigree/kernel/machine/IrqManager.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 KERNEL_MACHINE_IRQMANAGER_H
#define KERNEL_MACHINE_IRQMANAGER_H

#include "pedigree/kernel/machine/types.h"
#include "pedigree/kernel/processor/types.h"

class Device;
class IrqHandler;

class IrqManager
{
  public:
    enum ControlCode
    {
        MitigationThreshold, 
    };

    virtual irq_id_t registerIsaIrqHandler(
        uint8_t irq, IrqHandler *handler, bool bEdge = false) = 0;
    virtual irq_id_t
    registerPciIrqHandler(IrqHandler *handler, Device *pDevice) = 0;
    virtual void acknowledgeIrq(irq_id_t Id) = 0;
    virtual void unregisterHandler(irq_id_t Id, IrqHandler *handler) = 0;

    virtual void enable(uint8_t irq, bool enable) = 0;

    virtual void tick();

    virtual bool control(uint8_t irq, ControlCode code, size_t argument);

  protected:
    IrqManager();
    virtual ~IrqManager();

  private:
    IrqManager(const IrqManager &);
    IrqManager &operator=(const IrqManager &);
};

#endif