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80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
/*
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* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/Types.h>
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#define VMWARE_MAGIC 0x564D5868
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#define VMWARE_PORT 0x5658
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#define VMWARE_PORT_HIGHBANDWIDTH 0x5659
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#define VMMOUSE_GETVERSION 10
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#define VMMOUSE_DATA 39
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#define VMMOUSE_STATUS 40
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#define VMMOUSE_COMMAND 41
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struct VMWareCommand {
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union {
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u32 ax;
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u32 magic;
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};
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union {
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u32 bx;
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u32 size;
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};
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union {
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u32 cx;
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u32 command;
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};
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union {
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u32 dx;
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u32 port;
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};
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u32 si;
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u32 di;
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};
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class VMWareBackdoor {
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public:
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static void initialize();
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static VMWareBackdoor& the();
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bool supported();
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bool vmmouse_is_absolute();
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void enable_absolute_vmmouse();
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void disable_absolute_vmmouse();
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void send(VMWareCommand& command);
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private:
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void send_highbandwidth(VMWareCommand& command);
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void get_highbandwidth(VMWareCommand& command);
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VMWareBackdoor();
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bool detect_presence();
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bool detect_vmmouse();
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bool m_supported;
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bool m_vmmouse_absolute { false };
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};
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