diff options
Diffstat (limited to 'Core/EM/KbcEmul/KbcEmul.c')
| -rw-r--r-- | Core/EM/KbcEmul/KbcEmul.c | 481 |
1 files changed, 481 insertions, 0 deletions
diff --git a/Core/EM/KbcEmul/KbcEmul.c b/Core/EM/KbcEmul/KbcEmul.c new file mode 100644 index 0000000..ddcd165 --- /dev/null +++ b/Core/EM/KbcEmul/KbcEmul.c @@ -0,0 +1,481 @@ +//********************************************************************** +//********************************************************************** +//** ** +//** (C)Copyright 1985-2013, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Pkwy, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//********************************************************************** +//********************************************************************** +// $Header: /Alaska/SOURCE/Modules/KbcEmulation/ALASKA/KBCEMUL/KbcEmul.c 14 12/04/14 12:49a Rajeshms $ +// +// $Revision: 14 $ +// +// $Date: 12/04/14 12:49a $ +// +//**************************************************************************** +// Revision History +// ---------------- +// $Log: /Alaska/SOURCE/Modules/KbcEmulation/ALASKA/KBCEMUL/KbcEmul.c $ +// +// 14 12/04/14 12:49a Rajeshms +// [TAG] EIP193601 +// [Category] New Feature +// [Description] Aptio4.x - Security Enhancement for SMIHandler in +// KbcEmulation module, Checks if BAR address access is inside SMRAM, if +// yes, return. +// [Files] KbcEmul.mak, KbcEmul.c, KbcOhci.c +// +// 13 9/16/13 6:50a Srikantakumarp +// [TAG] EIP135441 +// [Category] Bug Fix +// [Severity] Normal +// [Symptom] Option ROM was not getting dispatched in AMD Platforms +// [RootCause] Setting the IRQ1 in the Entry Point of the KbcEmulation +// Driver +// [Solution] Setting the IRQ1 only if KbcEmulation is Enabled +// [Files] KbcEmul.c +// +// 12 1/09/12 1:24a Rameshr +// [TAG] EIP74128 +// [Category] Improvement +// [Description] Disable the KbcEmulation Smi’s on ACPI enable and +// Disable SMI call +// [Files] Kbccore.c, KbcEmuulAcpi.c, KbcEmul.c, KbcEmul.cif, +// KbcEmul.h, KbcEmul.sdl +// +// 11 5/02/11 12:16a Rameshr +// [TAG] - EIP 58434 +// [Category]- BUG FIX +// [Severity]- Major +// [Symptom] - IRQ1 not enabled on LegacyFree(No KBC) system while booting +// to Legacy OS. +// [RootCause]- As there is no KBC, IRQ1 not used by system and it's not +// enabled. +// [Solution] - When the Emulation module enabled, IRQ1 is added to the +// used IRQ list.So it's enabled while booting to Legacy OS. +// [Files] - KbcEmul.c +// +// 10 4/11/11 2:46a Rameshr +// [TAG]- EIP 57436 +// [Category]-IMPROVEMENT +// [Description]- PI1.1 Support. +// [Files]- Ap4x.h, KbcEmul.c +// +// 9 2/10/11 12:57a Rameshr +// [TAG] EIP53687 +// [Category] Improvement +// [Description] AMI headers update for KbcEmulation Module +// [Files] KbcEmul.mak,KbcEmul.dxs,KbcEmul.c,KbcEmul.h,KbcEmulLib.h,Kbc +// EmulLib.c,Kbc.h,KbcDevEmul.h,Kbccore.c,Legacykbc.c,Legacykbd.c,LegacyMo +// use.c,VirtualKbc.c,VirtualKbd.c,VirtualMouse.c,Ap4x.h,Ap4x.c,KbcUhci.c, +// KbcUhci.h,KbcEmulIrq.c, KbcOhci.c, Kbcohci.h +// +// 8 7/08/10 1:57a Rameshr +// Ohci Emulation support Added. +// EIP 39712 +// +// 7 6/30/09 11:28a Rameshr +// Coding Standard and File header updated. +// +// 6 2/05/09 9:37a Rameshr +// Symptom : With Latest CSM Emulation doesn't work. +// Solution: Added Emulation enable code in outside SMM. This is called +// from Uhcd.c when ever USB mode changes to Legacy +// EIP:18730 +// +// 5 10/24/08 11:55a Rameshraju +// KBC presence done only based on 0xFF value. +// +// 3 8/11/08 12:33p Vasudevans +// +// 4 8/07/08 10:21a Rameshraju +// Removed the IRQ1 changes +// +// 3 7/08/08 11:09a Rameshraju +// IRQ1 unmasked. +// +// 2 12/27/07 4:53p Rameshraju +// Detect the KBC presence by reading port 64 +// +// 1 12/14/07 10:26a Rameshraju +// Initial Check-in +//**************************************************************************** + +//<AMI_FHDR_START> +//**************************************************************************** +// Name: KbcEmul.c +// +// Description: KBC emulation driver entry point and initilize the SMI for port 6064 +//**************************************************************************** +//<AMI_FHDR_END> + +#include "KbcEmul.h" +#include "Kbc.h" +#include "KbcDevEmul.h" +#ifdef FRAMEWORK_AP4 +#include "token.h" +#include "protocol/usbpolicy.h" +#else +#include "tokens.h" +#endif + +#include <AmiBufferValidationLib.h> + +extern EFI_GUID gEfiLoadedImageProtocolGuid; +extern EFI_GUID gEfiDevicePathProtocolGuid; +extern EFI_GUID gEfiSetupGuid; + + +EFI_CPU_IO_PROTOCOL *CpuIo; +KBC* gVirtualKBC = NULL; +void Emulation_Init(); +void Smm_Register(); + +// +//KBC Emulation TRAP protocol. +// +BOOLEAN Emulation6064TrapEnable(EFI_EMUL6064TRAP_PROTOCOL *This); +BOOLEAN Emulation6064TrapDisable(EFI_EMUL6064TRAP_PROTOCOL *This); +UINT32 KbcEmulationFeature (EFI_EMUL6064TRAP_PROTOCOL * This); +BOOLEAN NonSmmEmulation6064TrapEnable(EFI_EMUL6064TRAP_PROTOCOL *This); +BOOLEAN NonSmmEmulation6064TrapDisable(EFI_EMUL6064TRAP_PROTOCOL *This); + +EFI_EMUL6064TRAP_PROTOCOL Emulation6064Trap= { + Emulation6064TrapEnable, + Emulation6064TrapDisable, + KbcEmulationFeature +}; + +EFI_EMUL6064TRAP_PROTOCOL NonSmmEmulation6064Trap= { + NonSmmEmulation6064TrapEnable, + NonSmmEmulation6064TrapDisable, + KbcEmulationFeature +}; + +EFI_HANDLE EmulationTrapHandle=NULL; + + +EFI_DRIVER_ENTRY_POINT(EmulationEntryPoint) + + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: EmulationEntryPoint +// +// Description: Entry point for Emulation driver. If the port 6064 emulation enabled by setup +// it enables the SMI event for port 6064 and install the Trap handle protocol. +// +// +// Input: Standard EFI Image entry - EFI_IMAGE_ENTRY_POINT +// +// Output: Status: EFI_SUCCESS = Success +// EFI_ERROR = Failure +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +EFI_STATUS +EmulationEntryPoint( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable +) +{ + EFI_STATUS Status = 0; + UINTN VariableSize; + BOOLEAN InSmm = 0; + USB_SUPPORT_SETUP SetupData; + + // + // Initialize the EFI Runtime Library + // + initializeLib(ImageHandle, SystemTable); + + + // + //Check the setup option, if the emulation disabled in setup return with EFI_SUCCESS + // + VariableSize = sizeof(USB_SUPPORT_SETUP); + Status = pRS->GetVariable( L"UsbSupport", &gEfiSetupGuid, NULL, &VariableSize, &SetupData ); + + if (EFI_ERROR(Status) || (SetupData.UsbEmul6064 == 0)) { + return EFI_SUCCESS; + } + + // + // Save the system table pointer + // + gSMM->GetSmstLocation (gSMM, &gSmst); + + // + // Find out whether we're in SMM + // + gSMM->InSmm (gSMM, &InSmm); + + if (!InSmm) { + EFI_HANDLE hSmmCode = NULL; + EFI_DEVICE_PATH_PROTOCOL *FilePath; + EFI_LOADED_IMAGE_PROTOCOL *LoadedImage; + EFI_DEVICE_PATH_PROTOCOL *ImageDevicePath; + + // + // Load this driver's image to memory + // + + Status = gBS->HandleProtocol( + ImageHandle, &gEfiLoadedImageProtocolGuid, &LoadedImage); + if (EFI_ERROR(Status)) return Status; + + Status = gBS->HandleProtocol( + LoadedImage->DeviceHandle, &gEfiDevicePathProtocolGuid, (VOID*)&ImageDevicePath + ); + if (EFI_ERROR(Status)) return Status; + + Status = gBS->LocateProtocol (&gEfiCpuIoProtocolGuid, NULL, &CpuIo); + + if (EFI_ERROR(Status)) return Status; + + gBS->InstallProtocolInterface(&EmulationTrapHandle, + &gNonSmmEmul6064TrapProtocolGuid,EFI_NATIVE_INTERFACE,&NonSmmEmulation6064Trap); + + FilePath = AppendDevicePath( + ImageDevicePath, LoadedImage->FilePath + ); + + // + // Load the image in memory to SMRAM; it will automatically generate SMI. + // + Status = gSMM->Register(gSMM, FilePath, NULL, 0, &hSmmCode, FALSE); + }else { + // + // We're now in SMM, registering all USB SMM callback functions + // +#if OHCI_EMUL_SUPPORT + InitAmiBufferValidationLib(ImageHandle, SystemTable); +#endif + Emulation_Init(); + + gBS->InstallProtocolInterface(&EmulationTrapHandle, + &gEmul6064TrapProtocolGuid,EFI_NATIVE_INTERFACE,&Emulation6064Trap); + RegisterAcpiEnableCallBack(); + } + + return EFI_SUCCESS; +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: Emulation_Init +// +// Description: Initilize the Keyboard Controller, Keyboard and Mouse device.Regsiter the SMI for port 6064 +// access. +// +// Input: None +// +// Output: None +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +void Emulation_Init() +{ + static VIRTKBC VirtualKBC; + static VIRTMOUSE VirtualMouse; + static VIRTKBD VirtualKbd; + static LEGACYKBC LegacyKbc; + static LEGACYKBD LegacyKbd; + static LEGACYMOUSE LegacyMouse; + BOOLEAN KbcPresent=FALSE; + UINT8 port64 = IoRead8(0x64); + + + // + //Detect the KBC presence by reading port 64. + // + KbcPresent = ((port64==0xFF))? 0 : 1; + + if(KbcPresent) { + + gVirtualKBC = &LegacyKbc.kbc_; + + // + //Initialize the Legacy Mouse Device + // + InitLegacyMouse(gVirtualKBC,&LegacyMouse); + + // + //Initialize the Legacy Keyboard Device + // + InitLegacyKbd(gVirtualKBC,&LegacyKbd); + + // + //Initialize the Legacy Keyboard Controller + // + InitLegacyKBC(&LegacyKbc,&LegacyKbd.sink,&LegacyMouse.sink); + + + } else { + + gVirtualKBC = &VirtualKBC.kbc; + + // + //Initialize the Virtual Mouse Device + // + InitVirtualMouse(gVirtualKBC,&VirtualMouse); + + // + //Initialize the Virtual Keyboard Device + // + InitVirtualKbd(gVirtualKBC,&VirtualKbd); + + // + //Initialize the Virtual Keyboard Controller + // + InitVirtualKBC(&VirtualKBC,&VirtualKbd.sink,&VirtualMouse.sink); + + } + + // + // Hardware specific SMM registration + Smm_Register(); + + return; +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: Emulation6064TrapEnable +// +// Description: Enable the SMI source for port 6064 +// +// Input: None +// +// Output: TRUE/FALSE +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +BOOLEAN +Emulation6064TrapEnable ( + EFI_EMUL6064TRAP_PROTOCOL * This + ) +{ + return TrapEnable(TRUE); +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: Emulation6064TrapDisable +// +// Description: Disable the SMI source for port 6064 +// +// Input: None +// +// Output: TRUE/FALSE +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +BOOLEAN +Emulation6064TrapDisable ( + EFI_EMUL6064TRAP_PROTOCOL * This + ) +{ + return TrapEnable(FALSE); +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: NonSmmEmulation6064TrapEnable +// +// Description: Enable the SMI source for port 6064 in Non SMM +// +// Input: None +// +// Output: None +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +BOOLEAN +NonSmmEmulation6064TrapEnable ( + EFI_EMUL6064TRAP_PROTOCOL * This + ) +{ + UINT16 IrqMask; + EFI_STATUS Status; + + // + // Reserve IRQ1 if the Emulation enabled + // + Status=AmiIsaIrqMask(&IrqMask, TRUE); + + if(Status==EFI_NOT_FOUND){ + IrqMask=ISA_IRQ_MASK; + IrqMask |= 2; + AmiIsaIrqMask(&IrqMask, FALSE); + } else { + IrqMask |= 2; + AmiIsaIrqMask(&IrqMask, FALSE); + } + + return NonSmmTrapEnable(TRUE); +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: NonSmmEmulation6064TrapDisable +// +// Description: Disable the SMI source for port 6064 in Non SMM +// +// Input: None +// +// Output: None +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +BOOLEAN +NonSmmEmulation6064TrapDisable ( + EFI_EMUL6064TRAP_PROTOCOL * This + ) +{ + return NonSmmTrapEnable(FALSE); +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: KbcEmulationFeature +// +// Description: Returns all the feature supported by Emulation +// +// Input: None +// +// Output: None +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +UINT32 +KbcEmulationFeature ( + EFI_EMUL6064TRAP_PROTOCOL * This + ) +{ + UINT32 KbcEmulFeature=0; + +#if IRQ_EMUL_SUPPORT + KbcEmulFeature |= IRQ_SUPPORTED; +#endif + return KbcEmulFeature; +} + +//********************************************************************** +//********************************************************************** +//** ** +//** (C)Copyright 1985-2013, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Pkwy, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//********************************************************************** +//********************************************************************** |