HidInputManager.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 MACHINE_HID_INPUT_MANAGER_H
#define MACHINE_HID_INPUT_MANAGER_H

#include "pedigree/kernel/Spinlock.h"
#include "pedigree/kernel/compiler.h"
#include "pedigree/kernel/machine/TimerHandler.h"
#include "pedigree/kernel/processor/state_forward.h"
#include "pedigree/kernel/processor/types.h"
#include "pedigree/kernel/utilities/Tree.h"

class EXPORTED_PUBLIC HidInputManager : public TimerHandler
{
  public:
    HidInputManager();

    virtual ~HidInputManager();

    static HidInputManager &instance()
    {
        return m_Instance;
    }

    void keyDown(uint8_t keyCode);

    void keyUp(uint8_t keyCode);

    void updateKeys();

    void timer(uint64_t delta, InterruptState &state);

  private:
    static HidInputManager m_Instance;

    struct KeyState
    {
        uint64_t key;

        uint64_t nLeftTicks;
    };

    Tree<uint8_t, KeyState *> m_KeyStates;

    Spinlock m_KeyLock;
};

#endif