touchkit.hh

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/*
 * Copyright (c) 2010, 2017-2018 ARM Limited
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 *
 * The license below extends only to copyright in the software and shall
 * not be construed as granting a license to any other intellectual
 * property including but not limited to intellectual property relating
 * to a hardware implementation of the functionality of the software
 * licensed hereunder.  You may use the software subject to the license
 * terms below provided that you ensure that this notice is replicated
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 * modified or unmodified, in source code or in binary form.
 *
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 * modification, are permitted provided that the following conditions are
 * met: redistributions of source code must retain the above copyright
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 * redistributions in binary form must reproduce the above copyright
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 * this software without specific prior written permission.
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 * Authors: Andreas Sandberg
 */

#ifndef __DEV_PS2_TOUCHKIT_HH__
#define __DEV_PS2_TOUCHKIT_HH__

#include "base/vnc/vncinput.hh"
#include "dev/ps2/device.hh"

struct PS2TouchKitParams;

class PS2TouchKit : public PS2Device, public VncMouse
{
  protected:
    enum PS2Commands {
        TpReadId = 0xE1,
        TouchKitDiag = 0x0A,
    };

    enum TKCommands {
        TouchKitActive = 'A',
        TouchKitFWRev = 'D',
        TouchKitCtrlType = 'E',
    };

  public:
    PS2TouchKit(const PS2TouchKitParams *p);

    void serialize(CheckpointOut &cp) const override;
    void unserialize(CheckpointIn &cp) override;

  protected: // PS2Device
    bool recv(const std::vector<uint8_t> &data) override;

  public: // VncMouse
    void mouseAt(uint16_t x, uint16_t y, uint8_t buttons) override;

  protected:
    bool recvTouchKit(const std::vector<uint8_t> &data);
    void sendTouchKit(const uint8_t *data, size_t size);
    void sendTouchKit(uint8_t data) { sendTouchKit(&data, 1); }

    VncInput *const vnc;

    bool enabled;

    bool touchKitEnabled;
};

#endif // __DEV_PS2_TOUCHKIT_HH__