mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-10 14:23:31 +01:00
01f33f7552
stylish change: remove space between func and brace Signed-off-by: SergeySlice <sergey.slice@gmail.com>
568 lines
17 KiB
C
568 lines
17 KiB
C
/** @file
|
|
PCI Rom supporting funtions implementation for PCI Bus module.
|
|
|
|
Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
|
|
This program and the accompanying materials
|
|
are licensed and made available under the terms and conditions of the BSD License
|
|
which accompanies this distribution. The full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.php
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
Module Name:
|
|
|
|
PciOptionRomSupport.c
|
|
|
|
Abstract:
|
|
|
|
PCI Bus Driver
|
|
|
|
Revision History
|
|
|
|
--*/
|
|
|
|
#include <IndustryStandard/PciBus.h>
|
|
#include "PciEnumeratorSupport.h"
|
|
#include "PciDriverOverride.h"
|
|
|
|
|
|
|
|
EFI_STATUS
|
|
RomDecode (
|
|
IN PCI_IO_DEVICE *PciDevice,
|
|
IN UINTN RomBarIndex,
|
|
IN UINT32 RomBar,
|
|
IN BOOLEAN Enable
|
|
);
|
|
|
|
EFI_STATUS
|
|
GetOpRomInfo (
|
|
IN PCI_IO_DEVICE *PciIoDevice
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Arguments:
|
|
|
|
Returns:
|
|
|
|
--*/
|
|
{
|
|
UINTN RomBarIndex;
|
|
UINT32 AllOnes;
|
|
UINT64 Address;
|
|
EFI_STATUS Status;
|
|
UINT8 Bus;
|
|
UINT8 Device;
|
|
UINT8 Function;
|
|
EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
|
|
|
|
Bus = PciIoDevice->BusNumber;
|
|
Device = PciIoDevice->DeviceNumber;
|
|
Function = PciIoDevice->FunctionNumber;
|
|
|
|
PciRootBridgeIo = PciIoDevice->PciRootBridgeIo;
|
|
|
|
//
|
|
// offset is 0x30 if is not ppb
|
|
//
|
|
|
|
//
|
|
// 0x30
|
|
//
|
|
RomBarIndex = PCI_EXPANSION_ROM_BASE;
|
|
|
|
if (IS_PCI_BRIDGE (&PciIoDevice->Pci)) {
|
|
//
|
|
// if is ppb
|
|
//
|
|
|
|
//
|
|
// 0x38
|
|
//
|
|
RomBarIndex = PCI_BRIDGE_ROMBAR;
|
|
}
|
|
//
|
|
// the bit0 is 0 to prevent the enabling of the Rom address decoder
|
|
//
|
|
AllOnes = 0xfffffffe;
|
|
Address = EFI_PCI_ADDRESS (Bus, Device, Function, RomBarIndex);
|
|
|
|
Status = PciRootBridgeIo->Pci.Write (
|
|
PciRootBridgeIo,
|
|
EfiPciWidthUint32,
|
|
Address,
|
|
1,
|
|
&AllOnes
|
|
);
|
|
if (EFI_ERROR(Status)) {
|
|
return Status;
|
|
}
|
|
|
|
//
|
|
// read back
|
|
//
|
|
Status = PciRootBridgeIo->Pci.Read (
|
|
PciRootBridgeIo,
|
|
EfiPciWidthUint32,
|
|
Address,
|
|
1,
|
|
&AllOnes
|
|
);
|
|
if (EFI_ERROR(Status)) {
|
|
return Status;
|
|
}
|
|
|
|
//
|
|
// Bits [1, 10] are reserved
|
|
//
|
|
AllOnes &= 0xFFFFF800;
|
|
if ((AllOnes == 0) || (AllOnes == 0xFFFFF800)) {
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
|
|
// DEBUG ((EFI_D_ERROR, "PCIBUS: GetOpRomInfo: OPROM detected!\n"));
|
|
// DEBUG ((EFI_D_ERROR, "PCIBUS: GetOpRomInfo: B-%x, D-%x, F-%x\n", (UINTN)Bus, (UINTN)Device, (UINTN)Function));
|
|
|
|
PciIoDevice->RomSize = (UINT64) ((~AllOnes) + 1);
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
EFI_STATUS
|
|
LoadOpRomImage (
|
|
IN PCI_IO_DEVICE *PciDevice,
|
|
IN UINT64 ReservedMemoryBase
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Load option rom image for specified PCI device
|
|
|
|
Arguments:
|
|
|
|
Returns:
|
|
|
|
--*/
|
|
{
|
|
UINT8 RomBarIndex;
|
|
UINT8 Indicator;
|
|
UINT16 OffsetPcir;
|
|
UINT32 RomBarOffset;
|
|
UINT32 RomBar;
|
|
EFI_STATUS retStatus;
|
|
BOOLEAN FirstCheck;
|
|
UINT8 *Image;
|
|
PCI_EXPANSION_ROM_HEADER *RomHeader;
|
|
PCI_DATA_STRUCTURE *RomPcir;
|
|
UINT64 RomSize;
|
|
UINT64 RomImageSize;
|
|
UINT32 LegacyImageLength;
|
|
UINT8 *RomInMemory;
|
|
UINT8 CodeType;
|
|
|
|
RomSize = PciDevice->RomSize;
|
|
|
|
Indicator = 0;
|
|
RomImageSize = 0;
|
|
RomInMemory = NULL;
|
|
CodeType = 0xFF;
|
|
|
|
//
|
|
// Get the RomBarIndex
|
|
//
|
|
|
|
//
|
|
// 0x30
|
|
//
|
|
RomBarIndex = PCI_EXPANSION_ROM_BASE;
|
|
if (IS_PCI_BRIDGE (&(PciDevice->Pci))) {
|
|
//
|
|
// if is ppb
|
|
//
|
|
|
|
//
|
|
// 0x38
|
|
//
|
|
RomBarIndex = PCI_BRIDGE_ROMBAR;
|
|
}
|
|
//
|
|
// Allocate memory for Rom header and PCIR
|
|
//
|
|
RomHeader = AllocatePool (sizeof (PCI_EXPANSION_ROM_HEADER));
|
|
if (RomHeader == NULL) {
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
RomPcir = AllocatePool (sizeof (PCI_DATA_STRUCTURE));
|
|
if (RomPcir == NULL) {
|
|
FreePool(RomHeader);
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
RomBar = (UINT32)ReservedMemoryBase;
|
|
|
|
//
|
|
// Enable RomBar
|
|
//
|
|
RomDecode (PciDevice, RomBarIndex, RomBar, TRUE);
|
|
|
|
RomBarOffset = RomBar;
|
|
retStatus = EFI_NOT_FOUND;
|
|
FirstCheck = TRUE;
|
|
LegacyImageLength = 0;
|
|
|
|
do {
|
|
PciDevice->PciRootBridgeIo->Mem.Read (
|
|
PciDevice->PciRootBridgeIo,
|
|
EfiPciWidthUint8,
|
|
RomBarOffset,
|
|
sizeof (PCI_EXPANSION_ROM_HEADER),
|
|
(UINT8 *) RomHeader
|
|
);
|
|
|
|
if (RomHeader->Signature != PCI_EXPANSION_ROM_HEADER_SIGNATURE) {
|
|
RomBarOffset = RomBarOffset + 512;
|
|
if (FirstCheck) {
|
|
break;
|
|
} else {
|
|
RomImageSize = RomImageSize + 512;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
FirstCheck = FALSE;
|
|
OffsetPcir = RomHeader->PcirOffset;
|
|
//
|
|
// If the pointer to the PCI Data Structure is invalid, no further images can be located.
|
|
// The PCI Data Structure must be DWORD aligned.
|
|
//
|
|
if (OffsetPcir == 0 ||
|
|
(OffsetPcir & 3) != 0 ||
|
|
RomImageSize + OffsetPcir + sizeof (PCI_DATA_STRUCTURE) > RomSize) {
|
|
break;
|
|
}
|
|
PciDevice->PciRootBridgeIo->Mem.Read (
|
|
PciDevice->PciRootBridgeIo,
|
|
EfiPciWidthUint8,
|
|
RomBarOffset + OffsetPcir,
|
|
sizeof (PCI_DATA_STRUCTURE),
|
|
(UINT8 *) RomPcir
|
|
);
|
|
//
|
|
// If a valid signature is not present in the PCI Data Structure, no further images can be located.
|
|
//
|
|
if (RomPcir->Signature != PCI_DATA_STRUCTURE_SIGNATURE) {
|
|
break;
|
|
}
|
|
if (RomImageSize + RomPcir->ImageLength * 512 > RomSize) {
|
|
break;
|
|
}
|
|
if (RomPcir->CodeType == PCI_CODE_TYPE_PCAT_IMAGE) {
|
|
CodeType = PCI_CODE_TYPE_PCAT_IMAGE;
|
|
LegacyImageLength = ((UINT32)((EFI_LEGACY_EXPANSION_ROM_HEADER *)RomHeader)->Size512) * 512;
|
|
}
|
|
Indicator = RomPcir->Indicator;
|
|
RomImageSize = RomImageSize + RomPcir->ImageLength * 512;
|
|
RomBarOffset = RomBarOffset + RomPcir->ImageLength * 512;
|
|
} while (((Indicator & 0x80) == 0x00) && ((RomBarOffset - RomBar) < RomSize));
|
|
|
|
//
|
|
// Some Legacy Cards do not report the correct ImageLength so used the maximum
|
|
// of the legacy length and the PCIR Image Length
|
|
//
|
|
if (CodeType == PCI_CODE_TYPE_PCAT_IMAGE) {
|
|
RomImageSize = MAX (RomImageSize, LegacyImageLength);
|
|
}
|
|
|
|
if (RomImageSize > 0) {
|
|
retStatus = EFI_SUCCESS;
|
|
Image = AllocatePool ((UINT32) RomImageSize);
|
|
if (Image == NULL) {
|
|
RomDecode (PciDevice, RomBarIndex, RomBar, FALSE);
|
|
gBS->FreePool(RomHeader);
|
|
gBS->FreePool(RomPcir);
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
//
|
|
// Copy Rom image into memory
|
|
//
|
|
PciDevice->PciRootBridgeIo->Mem.Read (
|
|
PciDevice->PciRootBridgeIo,
|
|
EfiPciWidthUint8,
|
|
RomBar,
|
|
(UINT32) RomImageSize,
|
|
Image
|
|
);
|
|
RomInMemory = Image;
|
|
}
|
|
|
|
RomDecode (PciDevice, RomBarIndex, RomBar, FALSE);
|
|
|
|
PciDevice->PciIo.RomSize = RomImageSize;
|
|
PciDevice->PciIo.RomImage = RomInMemory;
|
|
|
|
//
|
|
// Free allocated memory
|
|
//
|
|
gBS->FreePool(RomHeader);
|
|
gBS->FreePool(RomPcir);
|
|
|
|
return retStatus;
|
|
}
|
|
|
|
EFI_STATUS
|
|
RomDecode (
|
|
IN PCI_IO_DEVICE *PciDevice,
|
|
IN UINTN RomBarIndex,
|
|
IN UINT32 RomBar,
|
|
IN BOOLEAN Enable
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Arguments:
|
|
|
|
Returns:
|
|
|
|
--*/
|
|
{
|
|
UINT16 CommandValue;
|
|
UINT32 Value32;
|
|
UINT64 Address;
|
|
//EFI_STATUS Status;
|
|
EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
|
|
|
|
PciRootBridgeIo = PciDevice->PciRootBridgeIo;
|
|
if (Enable) {
|
|
Address = EFI_PCI_ADDRESS (PciDevice->BusNumber, PciDevice->DeviceNumber, PciDevice->FunctionNumber, RomBarIndex);
|
|
//
|
|
// set the Rom base address: now is hardcode
|
|
//
|
|
PciRootBridgeIo->Pci.Write(
|
|
PciRootBridgeIo,
|
|
EfiPciWidthUint32,
|
|
Address,
|
|
1,
|
|
&RomBar);
|
|
|
|
//
|
|
// enable its decoder
|
|
//
|
|
Value32 = RomBar | 0x1;
|
|
PciRootBridgeIo->Pci.Write(
|
|
PciRootBridgeIo,
|
|
EfiPciWidthUint32,
|
|
Address,
|
|
1,
|
|
&Value32);
|
|
|
|
//
|
|
//setting the memory space bit in the function's command register
|
|
//
|
|
Address = EFI_PCI_ADDRESS (PciDevice->BusNumber, PciDevice->DeviceNumber, PciDevice->FunctionNumber, 0x04);
|
|
PciRootBridgeIo->Pci.Read(
|
|
PciRootBridgeIo,
|
|
EfiPciWidthUint16,
|
|
Address,
|
|
1,
|
|
&CommandValue);
|
|
|
|
CommandValue = (UINT16)(CommandValue | 0x0002); //0x0003
|
|
PciRootBridgeIo->Pci.Write(
|
|
PciRootBridgeIo,
|
|
EfiPciWidthUint16,
|
|
Address,
|
|
1,
|
|
&CommandValue);
|
|
} else {
|
|
//
|
|
// disable rom decode
|
|
//
|
|
Address = EFI_PCI_ADDRESS (PciDevice->BusNumber, PciDevice->DeviceNumber, PciDevice->FunctionNumber, RomBarIndex);
|
|
Value32 = 0xfffffffe;
|
|
PciRootBridgeIo->Pci.Write(
|
|
PciRootBridgeIo,
|
|
EfiPciWidthUint32,
|
|
Address,
|
|
1,
|
|
&Value32);
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
|
|
}
|
|
|
|
EFI_STATUS
|
|
ProcessOpRomImage (
|
|
PCI_IO_DEVICE *PciDevice
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Process the oprom image.
|
|
|
|
Arguments:
|
|
PciDevice A pointer to a pci device.
|
|
|
|
Returns:
|
|
|
|
EFI Status.
|
|
|
|
--*/
|
|
{
|
|
UINT8 Indicator;
|
|
UINT32 ImageSize;
|
|
UINT16 ImageOffset;
|
|
VOID *RomBar;
|
|
UINT8 *RomBarOffset;
|
|
EFI_HANDLE ImageHandle;
|
|
EFI_STATUS Status;
|
|
EFI_STATUS retStatus;
|
|
BOOLEAN SkipImage;
|
|
UINT32 DestinationSize;
|
|
UINT32 ScratchSize;
|
|
UINT8 *Scratch;
|
|
VOID *ImageBuffer;
|
|
VOID *DecompressedImageBuffer;
|
|
UINT32 ImageLength;
|
|
EFI_DECOMPRESS_PROTOCOL *Decompress;
|
|
EFI_PCI_EXPANSION_ROM_HEADER *EfiRomHeader;
|
|
PCI_DATA_STRUCTURE *Pcir;
|
|
UINT32 InitializationSize;
|
|
|
|
Indicator = 0;
|
|
|
|
//
|
|
// Get the Address of the Rom image
|
|
//
|
|
RomBar = PciDevice->PciIo.RomImage;
|
|
RomBarOffset = (UINT8 *) RomBar;
|
|
retStatus = EFI_NOT_FOUND;
|
|
|
|
if (RomBarOffset == NULL) {
|
|
return retStatus;
|
|
}
|
|
// ASSERT (((EFI_PCI_EXPANSION_ROM_HEADER *) RomBarOffset)->Signature == PCI_EXPANSION_ROM_HEADER_SIGNATURE);
|
|
if (((EFI_PCI_EXPANSION_ROM_HEADER *) RomBarOffset)->Signature != PCI_EXPANSION_ROM_HEADER_SIGNATURE) {
|
|
return retStatus;
|
|
}
|
|
|
|
do {
|
|
EfiRomHeader = (EFI_PCI_EXPANSION_ROM_HEADER *) RomBarOffset;
|
|
if (EfiRomHeader->Signature != PCI_EXPANSION_ROM_HEADER_SIGNATURE) {
|
|
RomBarOffset = RomBarOffset + 512;
|
|
continue;
|
|
}
|
|
|
|
Pcir = (PCI_DATA_STRUCTURE *) (RomBarOffset + EfiRomHeader->PcirOffset);
|
|
// ASSERT (Pcir->Signature == PCI_DATA_STRUCTURE_SIGNATURE);
|
|
if (Pcir->Signature != PCI_DATA_STRUCTURE_SIGNATURE) {
|
|
return retStatus;
|
|
}
|
|
Indicator = Pcir->Indicator;
|
|
ImageSize = Pcir->ImageLength * 512;
|
|
if ((Pcir->CodeType == PCI_CODE_TYPE_EFI_IMAGE) &&
|
|
(EfiRomHeader->EfiSignature == EFI_PCI_EXPANSION_ROM_HEADER_EFISIGNATURE) &&
|
|
((EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER) ||
|
|
(EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER))) {
|
|
|
|
ImageOffset = EfiRomHeader->EfiImageHeaderOffset;
|
|
|
|
InitializationSize = EfiRomHeader->InitializationSize * 512;
|
|
|
|
if (InitializationSize <= ImageSize && ImageOffset < InitializationSize) {
|
|
|
|
ImageBuffer = (VOID *) (RomBarOffset + ImageOffset);
|
|
ImageLength = InitializationSize - (UINT32)ImageOffset;
|
|
DecompressedImageBuffer = NULL;
|
|
|
|
//
|
|
// decompress here if needed
|
|
//
|
|
SkipImage = FALSE;
|
|
if (EfiRomHeader->CompressionType > EFI_PCI_EXPANSION_ROM_HEADER_COMPRESSED) {
|
|
SkipImage = TRUE;
|
|
}
|
|
|
|
if (EfiRomHeader->CompressionType == EFI_PCI_EXPANSION_ROM_HEADER_COMPRESSED) {
|
|
Status = gBS->LocateProtocol (&gEfiDecompressProtocolGuid, NULL, (VOID **) &Decompress);
|
|
if (EFI_ERROR(Status)) {
|
|
SkipImage = TRUE;
|
|
} else {
|
|
SkipImage = TRUE;
|
|
Status = Decompress->GetInfo (
|
|
Decompress,
|
|
ImageBuffer,
|
|
ImageLength,
|
|
&DestinationSize,
|
|
&ScratchSize
|
|
);
|
|
if (!EFI_ERROR(Status)) {
|
|
//DecompressedImageBuffer = NULL;
|
|
DecompressedImageBuffer = AllocatePool (DestinationSize);
|
|
if (DecompressedImageBuffer != NULL) {
|
|
Scratch = AllocatePool (ScratchSize);
|
|
if (Scratch != NULL) {
|
|
Status = Decompress->Decompress (
|
|
Decompress,
|
|
ImageBuffer,
|
|
ImageLength,
|
|
DecompressedImageBuffer,
|
|
DestinationSize,
|
|
Scratch,
|
|
ScratchSize
|
|
);
|
|
if (!EFI_ERROR(Status)) {
|
|
ImageBuffer = DecompressedImageBuffer;
|
|
ImageLength = DestinationSize;
|
|
SkipImage = FALSE;
|
|
}
|
|
|
|
gBS->FreePool(Scratch);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!SkipImage) {
|
|
//
|
|
// load image and start image
|
|
//
|
|
Status = gBS->LoadImage (
|
|
FALSE,
|
|
gPciBusDriverBinding.DriverBindingHandle,
|
|
NULL,
|
|
ImageBuffer,
|
|
ImageLength,
|
|
&ImageHandle
|
|
);
|
|
if (!EFI_ERROR(Status)) {
|
|
Status = gBS->StartImage (ImageHandle, NULL, NULL);
|
|
if (!EFI_ERROR(Status)) {
|
|
AddDriver (PciDevice, ImageHandle);
|
|
retStatus = EFI_SUCCESS;
|
|
}
|
|
}
|
|
}
|
|
|
|
RomBarOffset = RomBarOffset + ImageSize;
|
|
} else {
|
|
RomBarOffset = RomBarOffset + ImageSize;
|
|
}
|
|
} else {
|
|
RomBarOffset = RomBarOffset + ImageSize;
|
|
}
|
|
|
|
} while (((Indicator & 0x80) == 0x00) && ((UINTN) (RomBarOffset - (UINT8 *) RomBar) < PciDevice->RomSize));
|
|
|
|
return retStatus;
|
|
|
|
}
|