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47978a5828
We add this feature together with the VMWareBackdoor class. VMWareBackdoor class is responsible for enabling the vmmouse, and then controlling it from the PS2 mouse IRQ handler.
111 lines
3.0 KiB
C++
111 lines
3.0 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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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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#include <Kernel/Arch/i386/CPU.h>
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#include <Kernel/Devices/VMWareBackdoor.h>
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namespace IO {
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inline u8 in8(u16 port)
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{
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u8 value;
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asm volatile("inb %1, %0"
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: "=a"(value)
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: "Nd"(port));
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return value;
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}
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inline u16 in16(u16 port)
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{
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u16 value;
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asm volatile("inw %1, %0"
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: "=a"(value)
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: "Nd"(port));
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return value;
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}
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inline u32 in32(u16 port)
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{
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u32 value;
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asm volatile("inl %1, %0"
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: "=a"(value)
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: "Nd"(port));
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return value;
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}
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inline void repeated_in16(u16 port, u8* buffer, int buffer_size)
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{
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asm volatile("rep insw"
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: "+D"(buffer), "+c"(buffer_size)
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: "d"(port)
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: "memory");
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}
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inline void out8(u16 port, u8 value)
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{
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asm volatile("outb %0, %1" ::"a"(value), "Nd"(port));
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}
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inline void out16(u16 port, u16 value)
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{
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asm volatile("outw %0, %1" ::"a"(value), "Nd"(port));
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}
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inline void out32(u16 port, u32 value)
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{
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asm volatile("outl %0, %1" ::"a"(value), "Nd"(port));
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}
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inline void repeated_out16(u16 port, const u8* data, int data_size)
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{
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asm volatile("rep outsw"
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: "+S"(data), "+c"(data_size)
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: "d"(port));
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}
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inline void vmware_out(VMWareCommand& command)
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{
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command.magic = VMWARE_MAGIC;
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command.port = VMWARE_PORT;
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command.si = 0;
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command.di = 0;
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asm volatile("in %%dx, %0"
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: "+a"(command.ax), "+b"(command.bx), "+c"(command.cx), "+d"(command.dx), "+S"(command.si), "+D"(command.di));
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}
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inline void delay()
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{
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// ~3 microsecs
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for (auto i = 0; i < 32; i++) {
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IO::in8(0x80);
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}
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}
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}
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