memory.pas

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	dev0:=dev0 and $FFFFC000;
  tmp:=GetInstance.MemReadLong(dev0+$C00);
	mchcfg:=tmp and $FFFF;
  tmp:=GetInstance.MemReadLong(dev0+$120);
	drc:=tmp and $FFFF;
	DRAMRatio:=1;
  gRAMInfo.DRAMCoef:='1:1';

  mchcfg2:=(mchcfg shr 4) and 3;

	if ((drc and 3) <> 2) then
  begin
		// We are in DDR1 Mode
		if (mchcfg2 = 1) then begin DRAMRatio:=0.8; gRAMInfo.DRAMCoef:='5:4'; end
    else begin DRAMRatio:=1; gRAMInfo.DRAMCoef:='1:1'; end;
  end
  else begin
		// We are in DDR2 Mode
		if (((mchcfg shr 2) and 1) = 1) then
    begin
			// We are in FSB1066 Mode
			if (mchcfg2 = 2) then begin DRAMRatio:=0.75; gRAMInfo.DRAMCoef:='4:3'; end
      else begin DRAMRatio:=1; gRAMInfo.DRAMCoef:='1:1'; end;
    end
    else
			case mchcfg2 of
        1: begin DRAMRatio:=0.66667; gRAMInfo.DRAMCoef:='3:2'; end;
				2: if (idetect<>$2590) then begin DRAMRatio:=1; gRAMInfo.DRAMCoef:='1:1'; end
           else begin DRAMRatio:=1.5; gRAMInfo.DRAMCoef:='2:3'; end;
				3: begin
						// Checking for FSB533 Mode & Alviso
						if ((mchcfg and 1) = 0) then begin DRAMRatio:=1.33334; gRAMInfo.DRAMCoef:='3:4'; end
						else if (idetect = $2590) then begin DRAMRatio:=2; gRAMInfo.DRAMCoef:='2:1'; end
						else begin DRAMRatio:=1.5; gRAMInfo.DRAMCoef:='2:3'; end;
        end;
		  end
  end;
  gRAMInfo.DRAMClock:=FSB*DRAMRatio;
end;

procedure poll_timings_i925(var Timings: tTimings; var gRAMInfo: tGRAMInfo);
var
  dev0, drt, drc, dcc, idetect, temp, tmp: DWord;
begin
	//Now, read MMR Base Address
	GetInstance.IPCIIORef.GetPCIRDWord(0, 0, 0, $44, dev0);
	GetInstance.IPCIIORef.GetPCIRDWord(0, 0, 0, $02, idetect);
  idetect:=(idetect shr 16) and $FFFF;
	dev0:=dev0 and $FFFFC000;

	//Set pointer for DRT
  tmp:=GetInstance.MemReadLong(dev0+$114);
	drt:=tmp and $FFFFFFFF;

	//Set pointer for DRC
  tmp:=GetInstance.MemReadLong(dev0+$120);
	drc:=tmp and $FFFFFFFF;

	//Set pointer for DCC
  tmp:=GetInstance.MemReadLong(dev0+$200);
	dcc:=tmp and $FFFFFFFF;

	//CAS Latency (tCAS)
	temp:=(drt shr 8) and $3;

  if ((drc and 3) = 2) then
  begin
		// Timings DDR-II
    gRAMInfo.DRAMType:='DDRII-SDRAM';
		if (temp = $0) then Timings.CAS:=5
		else if (temp = $1) then Timings.CAS:=4
		else Timings.CAS:=3;
  end
  else begin
		// Timings DDR-I
    gRAMInfo.DRAMType:='DDR-SDRAM';
		if (temp = $0) then Timings.CAS:=3
		else if (temp = $1) then Timings.CAS:=2.5
		else Timings.CAS:=2;
	end;

	//RAS-To-CAS (tRCD)
  Timings.RCD:=((drt shr 4) and $3)+2;

	//RAS Precharge (tRP)
  Timings.RP:=(drt and $3)+2;

	//RAS Active to precharge (tRAS)
	//If Lakeport, than change tRAS computation (Thanks to CDH, again)
	if (idetect = $2770) or (idetect = $2774) then Timings.RAS:=(drt shr 19) and $1F
	else Timings.RAS:=(drt shr 20) and $F;

	temp:=dcc and $3;
	if (temp = 1) then gRAMInfo.DRAMCnls:='Dual'
	else if (temp = 2) then gRAMInfo.DRAMCnls:='Dual'
	else gRAMInfo.DRAMCnls:='Single';
end;

//Intel i945 Methods
procedure poll_fsb_i945(lCPUClock, FSB: double; Mult: single; var gRAMInfo: tGRAMInfo);
var
	mchcfg, dev0, tmp: DWord;
  DRAMRation: single;
begin
	//Find dramratio
	GetInstance.IPCIIORef.GetPCIRDWord(0, 0, 0, $44, dev0);
  dev0:=dev0 and $FFFFC000;
  tmp:=GetInstance.MemReadLong(dev0+$C00);
	mchcfg:=tmp and $FFFF;
  DRAMRation:=1;

  case ((mchcfg shr 4) and 7) of
    1: begin DRAMRation:=1; gRAMInfo.DRAMCoef:='1:1'; end;
		2: begin DRAMRation:=1.33334; gRAMInfo.DRAMCoef:='3:4'; end;
		3: begin DRAMRation:=1.66667; gRAMInfo.DRAMCoef:='3:5'; end;
		4: begin DRAMRation:=2; gRAMInfo.DRAMCoef:='1:2'; end;
  end;

  gRAMInfo.DRAMClock:=FSB*DRAMRation;
end;

//KT266 Methods
procedure poll_fsb_kt266(lCPUClock, FSB: double; Mult: single; var gRAMInfo: tGRAMInfo);
var
  reg69: Byte;
begin
  GetInstance.IPCIIORef.GetPCIRByte(0, 0, 0, $69, reg69);
  reg69:=(reg69 shr 6) and $3;

  case reg69 of
    0: begin gRAMInfo.DRAMCoef:='1:1'; gRAMInfo.DRAMClock:=FSB; end;
    1: begin gRAMInfo.DRAMCoef:='FSB+33'; gRAMInfo.DRAMClock:=FSB+33; end;
    2: begin gRAMInfo.DRAMCoef:='FSB-33'; gRAMInfo.DRAMClock:=FSB-33; end;
    3: begin gRAMInfo.DRAMCoef:='FSB+66'; gRAMInfo.DRAMClock:=FSB+66; end;
  end;
end;

procedure poll_timings_kt266(var Timings: tTimings; var gRAMInfo: tGRAMInfo);
var
  reg60, reg64: Byte;
begin
  GetInstance.IPCIIORef.GetPCIRByte(0, 0, 0, $60, reg60);
  GetInstance.IPCIIORef.GetPCIRByte(0, 0, 0, $64, reg64);

  //CAS Latency (tCAS)
  reg60:=reg60 and $F;
  if (reg60 = 0) then //SDR-SDRAM
  begin
    gRAMInfo.DRAMType:='SDR-SDRAM';
    case ((reg64 shr 4) and $3) of
      0: Timings.CAS:=1;
      1: Timings.CAS:=2;
      2: Timings.CAS:=3;
    end;
  end
  else begin  //DDR-SDRAM
    gRAMInfo.DRAMType:='DDR-SDRAM';
    case ((reg64 shr 4) and $3) of
      1: Timings.CAS:=2;
      2: Timings.CAS:=2.5;
      3: Timings.CAS:=3;
    end;
  end;

 	//RAS-To-CAS (tRCD)
  if ((reg64 shr 2) and $1) = 1 then Timings.RCD:=3
  else Timings.RCD:=2;

	//RAS Precharge (tRP)
  if ((reg64 shr 7) and $1) = 1 then Timings.RP:=3
  else Timings.RP:=2;

  //RAS Active to precharge (tRAS)
	if ((reg64 shr 6) and $1) = 1 then Timings.RAS:=6
  else Timings.RAS:=5;
end;

//CN333 Methods
procedure poll_fsb_cn333(lCPUClock, FSB: double; Mult: single; var gRAMInfo: tGRAMInfo);
var
  reg68: Byte;
begin
  GetInstance.IPCIIORef.GetPCIRByte(0, 0, 3, $68, reg68);
  reg68:=reg68 and $F;

  case reg68 of
    0: begin gRAMInfo.DRAMCoef:='1:1'; gRAMInfo.DRAMClock:=FSB; end;
    1: begin gRAMInfo.DRAMCoef:='FSB+33'; gRAMInfo.DRAMClock:=FSB+33; end;
    5: begin gRAMInfo.DRAMCoef:='FSB+66'; gRAMInfo.DRAMClock:=FSB+66; end;
  end;
end;

procedure poll_timings_cn333(var Timings: tTimings; var gRAMInfo: tGRAMInfo);
var
  reg56: Byte;
begin
  GetInstance.IPCIIORef.GetPCIRByte(0, 0, 3, $56, reg56);

  //CAS Latency (tCAS)
  Timings.CAS:=(((reg56 shr 4) and 3)+3)/2;

  //RAS-To-CAS (tRCD)
  Timings.RCD:=((reg56 shr 2) and 3)+2;

  //RAS Precharge (tRP)
  Timings.RP:=(reg56 and 3)+2;

  //RAS Active to precharge (tRAS)
  Timings.RAS:=((reg56 shr 6) and 3)+6;
end;

const
  KnownControllers = 27;
  
var
  Controllers: array[1..KnownControllers] of Memory_Controller =
  (
    //AMD
    (VendorID: $1022; DeviceID: $1100; name: 'AMD 8000';  tested: 0; GetFSBMethod: poll_fsb_amd64; GetTmngsMethod: poll_timings_amd64; SetupECCMethod: nil),
    (VendorID: $1022; DeviceID: $7454; name: 'AMD 8000';  tested: 0; GetFSBMethod: poll_fsb_amd64; GetTmngsMethod: poll_timings_amd64; SetupECCMethod: nil),
    //ALI
    (VendorID: $10b9; DeviceID: $1687; name: 'ALI M1687'; tested: 0; GetFSBMethod: poll_fsb_amd64; GetTmngsMethod: poll_timings_amd64; SetupECCMethod: nil),
    (VendorID: $10b9; DeviceID: $1689; name: 'ALI M1689'; tested: 0; GetFSBMethod: poll_fsb_amd64; GetTmngsMethod: poll_timings_amd64; SetupECCMethod: nil),
    (VendorID: $10b9; DeviceID: $1695; name: 'ALI M1695'; tested: 0; GetFSBMethod: poll_fsb_amd64; GetTmngsMethod: poll_timings_amd64; SetupECCMethod: nil),
    //ATI
    (VendorID: $1002; DeviceID: $5950; name: 'ATI RS482'; tested: 0; GetFSBMethod: poll_fsb_amd64; GetTmngsMethod: poll_timings_amd64; SetupECCMethod: nil),
    //nVidia
    (VendorID: $10de; DeviceID: $01A4; name: 'nVidia nForce';             tested: 0; GetFSBMethod: nil; GetTmngsMethod: nil; SetupECCMethod: nil),
    (VendorID: $10de; DeviceID: $01E0; name: 'nVidia nForce2 SPP';        tested: 0; GetFSBMethod: poll_fsb_nf2; GetTmngsMethod: poll_timings_nf2; SetupECCMethod: nil),
    (VendorID: $10de; DeviceID: $00D1; name: 'nVidia nForce3';            tested: 0; GetFSBMethod: poll_fsb_amd64; GetTmngsMethod: poll_timings_amd64; SetupECCMethod: nil),
    (VendorID: $10de; DeviceID: $00E1; name: 'nVidia nForce3 250';        tested: 0; GetFSBMethod: poll_fsb_amd64; GetTmngsMethod: poll_timings_amd64; SetupECCMethod: nil),
    (VendorID: $10de; DeviceID: $005E; name: 'nVidia nForce4';            tested: 0; GetFSBMethod: poll_fsb_amd64; GetTmngsMethod: poll_timings_amd64; SetupECCMethod: nil),
    (VendorID: $10de; DeviceID: $0071; name: 'nForce4 SLI Intel Edition'; tested: 0; GetFSBMethod: poll_fsb_nf4ie; GetTmngsMethod: poll_timings_nf4ie; SetupECCMethod: nil),
    //VIA
    (VendorID: $1106; DeviceID: $3099; name: 'VIA KT266(A)/KT333';  tested: 0; GetFSBMethod: poll_fsb_kt266; GetTmngsMethod: poll_timings_kt266; SetupECCMethod: nil),
    (VendorID: $1106; DeviceID: $3123; name: 'VIA CLE266';          tested: 0; GetFSBMethod: poll_fsb_kt266; GetTmngsMethod: poll_timings_kt266; SetupECCMethod: nil),
    (VendorID: $1106; DeviceID: $0259; name: 'VIA CN333';           tested: 0; GetFSBMethod: poll_fsb_cn333; GetTmngsMethod: poll_timings_cn333; SetupECCMethod: nil),
    (VendorID: $1106; DeviceID: $3188; name: 'VIA K8T800';          tested: 0; GetFSBMethod: poll_fsb_amd64; GetTmngsMethod: poll_timings_amd64; SetupECCMethod: nil),
    (VendorID: $1106; DeviceID: $0282; name: 'VIA K8T800Pro';       tested: 0; GetFSBMethod: poll_fsb_amd64; GetTmngsMethod: poll_timings_amd64; SetupECCMethod: nil),
    (VendorID: $1106; DeviceID: $3238; name: 'VIA K8T890';          tested: 0; GetFSBMethod: poll_fsb_amd64; GetTmngsMethod: poll_timings_amd64; SetupECCMethod: nil),
    //Intel
    (VendorID: $8086; DeviceID: $2588; name: 'Intel E7221';     tested: 0; GetFSBMethod: nil{poll_fsb_i925}; GetTmngsMethod: nil{poll_timings_i925}; SetupECCMethod: nil),
    (VendorID: $8086; DeviceID: $2570; name: 'Intel i848/i865'; tested: 0; GetFSBMethod: nil{poll_fsb_i875}; GetTmngsMethod: nil{poll_timings_i875}; SetupECCMethod: nil),
    (VendorID: $8086; DeviceID: $2578; name: 'Intel i875P';     tested: 0; GetFSBMethod: nil{poll_fsb_i875}; GetTmngsMethod: nil{poll_timings_i875}; SetupECCMethod: nil),
    (VendorID: $8086; DeviceID: $3340; name: 'Intel i855PM';    tested: 0; GetFSBMethod: nil;                GetTmngsMethod: nil;               SetupECCMethod: nil),
    (VendorID: $8086; DeviceID: $2580; name: 'Intel i915P/G';   tested: 0; GetFSBMethod: nil{poll_fsb_i925}; GetTmngsMethod: nil{poll_timings_i925}; SetupECCMethod: nil),
    (VendorID: $8086; DeviceID: $2590; name: 'Intel i915PM/GM'; tested: 0; GetFSBMethod: nil{poll_fsb_i925}; GetTmngsMethod: nil{poll_timings_i925}; SetupECCMethod: nil),
    (VendorID: $8086; DeviceID: $2584; name: 'Intel i925X/XE';  tested: 0; GetFSBMethod: nil{poll_fsb_i925}; GetTmngsMethod: nil{poll_timings_i925}; SetupECCMethod: nil),
    (VendorID: $8086; DeviceID: $2770; name: 'Intel i945P/G';   tested: 0; GetFSBMethod: nil{poll_fsb_i945}; GetTmngsMethod: nil{poll_timings_i925}; SetupECCMethod: nil),
    (VendorID: $8086; DeviceID: $2774; name: 'Intel i955X';     tested: 0; GetFSBMethod: nil{poll_fsb_i945}; GetTmngsMethod: nil{poll_timings_i925}; SetupECCMethod: nil)
  );


constructor cMemory.Create;
begin
  inherited Create;
  fCtrl_Info.index:=0;

  fCtrl_Info.dwBus:=0;
  fCtrl_Info.dwDev:=0;
  fCtrl_Info.dwFunc:=0;

  DetectMemCtrl;
end;

procedure cMemory.DetectMemCtrl;
var
  VendorID, DeviceID: DWord;
  pdata: DWord;
  i: byte;
begin
  GetInstance.IPCIIORef.GetPCIRDWord(fCtrl_Info.dwBus, fCtrl_Info.dwDev, fCtrl_Info.dwFunc, 0, pdata);
  VendorID:=Word(pdata);
  DeviceID:=Word(pdata shr 16);

  for i:=Low(Controllers) to High(Controllers) do
    if ((Controllers[i].VendorID = VendorID) and (Controllers[i].DeviceID = DeviceID)) then
    begin
      fCtrl_Info.index:=i;
      break;
    end;
end;

function cMemory.GetPhysMemSize: DWord;
var  
 memStatus: TMemoryStatus;
begin
  memStatus.dwLength:=sizeOf(memStatus);
  GlobalMemoryStatus(memStatus);
  result:=trunc(memStatus.dwTotalPhys/1048576)+1;
end;


procedure cMemory.FillMemCtrlInfo(lCPUClock, FSB: double; Mult: single);
begin
  if fCtrl_Info.index<=0 then exit;

  fgRAMInfo.RamSize:=GetPhysMemSize;

  if Assigned(Controllers[fCtrl_Info.index].GetFSBMethod) then
        Controllers[fCtrl_Info.index].GetFSBMethod(lCPUClock, FSB, Mult, fgRAMInfo);

  if Assigned(Controllers[fCtrl_Info.index].GetTmngsMethod) then
        Controllers[fCtrl_Info.index].GetTmngsMethod(fTimings, fgRAMInfo);

  //ShowMessage(format('%x', [oHWIO.MemReadLong($20)]));
  //oHWIO.MemReadLong($5)
end;

destructor cMemory.Destroy;
begin
  inherited Destroy;
end;

end.