Ryujinx/Ryujinx.Core/Hid/Hid.cs

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using ChocolArm64.Memory;
using System.Diagnostics;
namespace Ryujinx.Core.Input
{
public class Hid
{
/*
* Reference:
* https://github.com/reswitched/libtransistor/blob/development/lib/hid.c
* https://github.com/reswitched/libtransistor/blob/development/include/libtransistor/hid.h
* https://github.com/switchbrew/libnx/blob/master/nx/source/services/hid.c
* https://github.com/switchbrew/libnx/blob/master/nx/include/switch/services/hid.h
*/
private const int HidHeaderSize = 0x400;
private const int HidTouchScreenSize = 0x3000;
private const int HidMouseSize = 0x400;
private const int HidKeyboardSize = 0x400;
private const int HidUnkSection1Size = 0x400;
private const int HidUnkSection2Size = 0x400;
private const int HidUnkSection3Size = 0x400;
private const int HidUnkSection4Size = 0x400;
private const int HidUnkSection5Size = 0x200;
private const int HidUnkSection6Size = 0x200;
private const int HidUnkSection7Size = 0x200;
private const int HidUnkSection8Size = 0x800;
private const int HidControllerSerialsSize = 0x4000;
private const int HidControllersSize = 0x32000;
private const int HidUnkSection9Size = 0x800;
private const int HidTouchHeaderSize = 0x28;
private const int HidTouchEntrySize = 0x298;
private const int HidTouchEntryHeaderSize = 0x10;
private const int HidTouchEntryTouchSize = 0x28;
private const int HidControllerSize = 0x5000;
private const int HidControllerHeaderSize = 0x28;
private const int HidControllerLayoutsSize = 0x350;
private const int HidControllersLayoutHeaderSize = 0x20;
private const int HidControllersInputEntrySize = 0x30;
private const int HidHeaderOffset = 0;
private const int HidTouchScreenOffset = HidHeaderOffset + HidHeaderSize;
private const int HidMouseOffset = HidTouchScreenOffset + HidTouchScreenSize;
private const int HidKeyboardOffset = HidMouseOffset + HidMouseSize;
private const int HidUnkSection1Offset = HidKeyboardOffset + HidKeyboardSize;
private const int HidUnkSection2Offset = HidUnkSection1Offset + HidUnkSection1Size;
private const int HidUnkSection3Offset = HidUnkSection2Offset + HidUnkSection2Size;
private const int HidUnkSection4Offset = HidUnkSection3Offset + HidUnkSection3Size;
private const int HidUnkSection5Offset = HidUnkSection4Offset + HidUnkSection4Size;
private const int HidUnkSection6Offset = HidUnkSection5Offset + HidUnkSection5Size;
private const int HidUnkSection7Offset = HidUnkSection6Offset + HidUnkSection6Size;
private const int HidUnkSection8Offset = HidUnkSection7Offset + HidUnkSection7Size;
private const int HidControllerSerialsOffset = HidUnkSection8Offset + HidUnkSection8Size;
private const int HidControllersOffset = HidControllerSerialsOffset + HidControllerSerialsSize;
private const int HidUnkSection9Offset = HidControllersOffset + HidControllersSize;
private const int HidEntryCount = 17;
private long SharedMemOffset;
private Switch Ns;
public Hid(Switch Ns)
{
this.Ns = Ns;
}
public void Init(long HidOffset)
{
SharedMemOffset = HidOffset;
InitializeJoyconPair(
JoyConColor.Body_Neon_Red,
JoyConColor.Buttons_Neon_Red,
JoyConColor.Body_Neon_Blue,
JoyConColor.Buttons_Neon_Blue);
}
public void InitializeJoyconPair(
JoyConColor LeftColorBody,
JoyConColor LeftColorButtons,
JoyConColor RightColorBody,
JoyConColor RightColorButtons)
{
long BaseControllerOffset = HidControllersOffset + 8 * HidControllerSize;
HidControllerType Type =
HidControllerType.ControllerType_Handheld |
HidControllerType.ControllerType_JoyconPair;
bool IsHalf = false;
HidControllerColorDesc SingleColorDesc =
HidControllerColorDesc.ColorDesc_ColorsNonexistent;
JoyConColor SingleColorBody = JoyConColor.Black;
JoyConColor SingleColorButtons = JoyConColor.Black;
HidControllerColorDesc SplitColorDesc = 0;
WriteInt32(BaseControllerOffset + 0x0, (int)Type);
WriteInt32(BaseControllerOffset + 0x4, IsHalf ? 1 : 0);
WriteInt32(BaseControllerOffset + 0x8, (int)SingleColorDesc);
WriteInt32(BaseControllerOffset + 0xc, (int)SingleColorBody);
WriteInt32(BaseControllerOffset + 0x10, (int)SingleColorButtons);
WriteInt32(BaseControllerOffset + 0x14, (int)SplitColorDesc);
WriteInt32(BaseControllerOffset + 0x18, (int)LeftColorBody);
WriteInt32(BaseControllerOffset + 0x1c, (int)LeftColorButtons);
WriteInt32(BaseControllerOffset + 0x20, (int)RightColorBody);
WriteInt32(BaseControllerOffset + 0x24, (int)RightColorButtons);
}
public void SetJoyconButton(
HidControllerId ControllerId,
HidControllerLayouts ControllerLayout,
HidControllerButtons Buttons,
HidJoystickPosition LeftStick,
HidJoystickPosition RightStick)
{
long ControllerOffset = HidControllersOffset + (int)ControllerId * HidControllerSize;
ControllerOffset += HidControllerHeaderSize;
ControllerOffset += (int)ControllerLayout * HidControllerLayoutsSize;
long LastEntry = ReadInt64(ControllerOffset + 0x10);
long CurrEntry = (LastEntry + 1) % HidEntryCount;
long Timestamp = Stopwatch.GetTimestamp();
WriteInt64(ControllerOffset + 0x0, Timestamp);
WriteInt64(ControllerOffset + 0x8, HidEntryCount);
WriteInt64(ControllerOffset + 0x10, CurrEntry);
WriteInt64(ControllerOffset + 0x18, HidEntryCount - 1);
ControllerOffset += HidControllersLayoutHeaderSize;
ControllerOffset += CurrEntry * HidControllersInputEntrySize;
WriteInt64(ControllerOffset + 0x0, Timestamp);
WriteInt64(ControllerOffset + 0x8, Timestamp);
WriteInt64(ControllerOffset + 0x10, (uint)Buttons);
WriteInt32(ControllerOffset + 0x18, LeftStick.DX);
WriteInt32(ControllerOffset + 0x1c, LeftStick.DY);
WriteInt64(ControllerOffset + 0x20, RightStick.DX);
WriteInt64(ControllerOffset + 0x24, RightStick.DY);
WriteInt64(ControllerOffset + 0x28,
(uint)HidControllerConnState.Controller_State_Connected |
(uint)HidControllerConnState.Controller_State_Wired);
}
public void SetTouchPoints(params HidTouchPoint[] Points)
{
Logging.Debug("hid touch");
long LastEntry = ReadInt64(HidTouchScreenOffset + 0x10);
long CurrEntry = (LastEntry + 1) % HidEntryCount;
long Timestamp = Stopwatch.GetTimestamp();
WriteInt64(HidTouchScreenOffset + 0x0, Timestamp);
WriteInt64(HidTouchScreenOffset + 0x8, HidEntryCount);
WriteInt64(HidTouchScreenOffset + 0x10, CurrEntry);
WriteInt64(HidTouchScreenOffset + 0x18, HidEntryCount - 1);
WriteInt64(HidTouchScreenOffset + 0x20, Timestamp);
long TouchEntryOffset = HidTouchScreenOffset + HidTouchHeaderSize;
long LastEntryOffset = TouchEntryOffset + LastEntry * HidTouchEntrySize;
long LastTimestamp = ReadInt64(LastEntryOffset);
TouchEntryOffset += CurrEntry * HidTouchEntrySize;
WriteInt64(TouchEntryOffset + 0x0, LastTimestamp + 1);
WriteInt64(TouchEntryOffset + 0x8, Points.Length);
TouchEntryOffset += HidTouchEntryHeaderSize;
const int Padding = 0;
int Index = 0;
foreach (HidTouchPoint Point in Points)
{
WriteInt64(TouchEntryOffset + 0x0, Timestamp);
WriteInt32(TouchEntryOffset + 0x8, Padding);
WriteInt32(TouchEntryOffset + 0xc, Index++);
WriteInt32(TouchEntryOffset + 0x10, Point.X);
WriteInt32(TouchEntryOffset + 0x14, Point.Y);
WriteInt32(TouchEntryOffset + 0x18, Point.DiameterX);
WriteInt32(TouchEntryOffset + 0x1c, Point.DiameterY);
WriteInt32(TouchEntryOffset + 0x20, Point.Angle);
WriteInt32(TouchEntryOffset + 0x24, Padding);
TouchEntryOffset += HidTouchEntryTouchSize;
}
}
private unsafe long ReadInt64(long Position)
{
Position += SharedMemOffset;
if ((ulong)Position + 8 > AMemoryMgr.AddrSize) return 0;
return *((long*)((byte*)Ns.Ram + Position));
}
private unsafe void WriteInt32(long Position, int Value)
{
Position += SharedMemOffset;
if ((ulong)Position + 4 > AMemoryMgr.AddrSize) return;
Logging.Debug($"hid wr32 {Position:x8} {Value:x8}");
*((int*)((byte*)Ns.Ram + Position)) = Value;
}
private unsafe void WriteInt64(long Position, long Value)
{
Position += SharedMemOffset;
if ((ulong)Position + 8 > AMemoryMgr.AddrSize) return;
Logging.Debug($"hid wr64 {Position:x8} {Value:x16}");
*((long*)((byte*)Ns.Ram + Position)) = Value;
}
}
}