Initial directory structure of IntelFrameworkPkg.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2657 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
bxing
116
IntelFrameworkPkg/Library/DxeIoLibCpuIo/DxeCpuIoLibInternal.h
Normal file
116
IntelFrameworkPkg/Library/DxeIoLibCpuIo/DxeCpuIoLibInternal.h
Normal file
@@ -0,0 +1,116 @@
|
||||
/** @file
|
||||
Internal include file of DXE CPU IO Library.
|
||||
|
||||
Copyright (c) 2006, Intel Corporation
|
||||
All rights reserved. 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: DxeCpuIoLibInternal.h
|
||||
|
||||
**/
|
||||
|
||||
#ifndef _DXE_CPUIO_LIB_INTERNAL_H_
|
||||
#define _DXE_CPUIO_LIB_INTERNAL_H_
|
||||
|
||||
#include <FrameworkDxe.h>
|
||||
#include <Library/IoLib.h>
|
||||
#include <Library/UefiBootServicesTableLib.h>
|
||||
#include <Library/DebugLib.h>
|
||||
#include <Library/BaseLib.h>
|
||||
|
||||
#include <Protocol/PciRootBridgeIo.h>
|
||||
#include <Protocol/CpuIo.h>
|
||||
|
||||
/**
|
||||
Reads registers in the EFI CPU I/O space.
|
||||
|
||||
Reads the I/O port specified by Port with registers width specified by Width.
|
||||
The read value is returned. If such operations are not supported, then ASSERT().
|
||||
This function must guarantee that all I/O read and write operations are serialized.
|
||||
|
||||
@param Port The base address of the I/O operation.
|
||||
The caller is responsible for aligning the Address if required.
|
||||
@param Width The width of the I/O operation.
|
||||
|
||||
@return Data read from registers in the EFI CPU I/O space.
|
||||
|
||||
**/
|
||||
UINT64
|
||||
EFIAPI
|
||||
IoReadWorker (
|
||||
IN UINTN Port,
|
||||
IN EFI_CPU_IO_PROTOCOL_WIDTH Width
|
||||
);
|
||||
|
||||
/**
|
||||
Writes registers in the EFI CPU I/O space.
|
||||
|
||||
Writes the I/O port specified by Port with registers width and value specified by Width
|
||||
and Data respectively. Data is returned. If such operations are not supported, then ASSERT().
|
||||
This function must guarantee that all I/O read and write operations are serialized.
|
||||
|
||||
@param Port The base address of the I/O operation.
|
||||
The caller is responsible for aligning the Address if required.
|
||||
@param Width The width of the I/O operation.
|
||||
@param Data The value to write to the I/O port.
|
||||
|
||||
@return The paramter of Data.
|
||||
|
||||
**/
|
||||
UINT64
|
||||
EFIAPI
|
||||
IoWriteWorker (
|
||||
IN UINTN Port,
|
||||
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
|
||||
IN UINT64 Data
|
||||
);
|
||||
|
||||
/**
|
||||
Reads memory-mapped registers in the EFI system memory space.
|
||||
|
||||
Reads the MMIO registers specified by Address with registers width specified by Width.
|
||||
The read value is returned. If such operations are not supported, then ASSERT().
|
||||
This function must guarantee that all MMIO read and write operations are serialized.
|
||||
|
||||
@param Address The MMIO register to read.
|
||||
The caller is responsible for aligning the Address if required.
|
||||
@param Width The width of the I/O operation.
|
||||
|
||||
@return Data read from registers in the EFI system memory space.
|
||||
|
||||
**/
|
||||
UINT64
|
||||
EFIAPI
|
||||
MmioReadWorker (
|
||||
IN UINTN Address,
|
||||
IN EFI_CPU_IO_PROTOCOL_WIDTH Width
|
||||
);
|
||||
|
||||
/**
|
||||
Writes memory-mapped registers in the EFI system memory space.
|
||||
|
||||
Writes the MMIO registers specified by Address with registers width and value specified by Width
|
||||
and Data respectively. Data is returned. If such operations are not supported, then ASSERT().
|
||||
This function must guarantee that all MMIO read and write operations are serialized.
|
||||
|
||||
@param Address The MMIO register to read.
|
||||
The caller is responsible for aligning the Address if required.
|
||||
@param Width The width of the I/O operation.
|
||||
|
||||
@return Data read from registers in the EFI system memory space.
|
||||
|
||||
**/
|
||||
UINT64
|
||||
EFIAPI
|
||||
MmioWriteWorker (
|
||||
IN UINTN Address,
|
||||
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
|
||||
IN UINT64 Data
|
||||
);
|
||||
|
||||
#endif
|
||||
60
IntelFrameworkPkg/Library/DxeIoLibCpuIo/DxeIoLibCpuIo.msa
Normal file
60
IntelFrameworkPkg/Library/DxeIoLibCpuIo/DxeIoLibCpuIo.msa
Normal file
@@ -0,0 +1,60 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
|
||||
<MsaHeader>
|
||||
<ModuleName>DxeIoLibCpuIo</ModuleName>
|
||||
<ModuleType>DXE_DRIVER</ModuleType>
|
||||
<GuidValue>e94cd42a-3aad-4ea0-9b09-945891c60ccd</GuidValue>
|
||||
<Version>1.0</Version>
|
||||
<Abstract>Component description file for Cpu Io Dxe Io Library.</Abstract>
|
||||
<Description>I/O Library implementation that uses the CPU I/O Protocol for I/O
|
||||
and MMIO operations.</Description>
|
||||
<Copyright>Copyright (c) 2006, Intel Corporation.</Copyright>
|
||||
<License>All rights reserved. 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.</License>
|
||||
<Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION 0x00000052</Specification>
|
||||
</MsaHeader>
|
||||
<ModuleDefinitions>
|
||||
<SupportedArchitectures>IA32 X64 IPF EBC</SupportedArchitectures>
|
||||
<BinaryModule>false</BinaryModule>
|
||||
<OutputFileBasename>DxeIoLibCpuIo</OutputFileBasename>
|
||||
</ModuleDefinitions>
|
||||
<LibraryClassDefinitions>
|
||||
<LibraryClass Usage="ALWAYS_PRODUCED" SupModuleList="DXE_DRIVER DXE_RUNTIME_DRIVER DXE_SAL_DRIVER DXE_SMM_DRIVER UEFI_APPLICATION UEFI_DRIVER">
|
||||
<Keyword>IoLib</Keyword>
|
||||
</LibraryClass>
|
||||
<LibraryClass Usage="ALWAYS_CONSUMED">
|
||||
<Keyword>UefiBootServicesTableLib</Keyword>
|
||||
</LibraryClass>
|
||||
<LibraryClass Usage="ALWAYS_CONSUMED">
|
||||
<Keyword>DebugLib</Keyword>
|
||||
</LibraryClass>
|
||||
<LibraryClass Usage="ALWAYS_CONSUMED">
|
||||
<Keyword>BaseLib</Keyword>
|
||||
</LibraryClass>
|
||||
</LibraryClassDefinitions>
|
||||
<SourceFiles>
|
||||
<Filename>IoLib.c</Filename>
|
||||
<Filename>IoHighLevel.c</Filename>
|
||||
<Filename>DxeCpuIoLibInternal.h</Filename>
|
||||
<Filename>IoLibMmioBuffer.c</Filename>
|
||||
</SourceFiles>
|
||||
<PackageDependencies>
|
||||
<Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
|
||||
</PackageDependencies>
|
||||
<Protocols>
|
||||
<Protocol Usage="ALWAYS_CONSUMED">
|
||||
<ProtocolCName>gEfiCpuIoProtocolGuid</ProtocolCName>
|
||||
</Protocol>
|
||||
</Protocols>
|
||||
<Externs>
|
||||
<Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
|
||||
<Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
|
||||
<Extern>
|
||||
<Constructor>IoLibConstructor</Constructor>
|
||||
</Extern>
|
||||
</Externs>
|
||||
</ModuleSurfaceArea>
|
||||
2274
IntelFrameworkPkg/Library/DxeIoLibCpuIo/IoHighLevel.c
Normal file
2274
IntelFrameworkPkg/Library/DxeIoLibCpuIo/IoHighLevel.c
Normal file
File diff suppressed because it is too large
Load Diff
614
IntelFrameworkPkg/Library/DxeIoLibCpuIo/IoLib.c
Normal file
614
IntelFrameworkPkg/Library/DxeIoLibCpuIo/IoLib.c
Normal file
@@ -0,0 +1,614 @@
|
||||
/** @file
|
||||
I/O Library.
|
||||
|
||||
Copyright (c) 2006, Intel Corporation<BR>
|
||||
All rights reserved. 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: IoLib.c
|
||||
|
||||
**/
|
||||
|
||||
#include "DxeCpuIoLibInternal.h"
|
||||
|
||||
//
|
||||
// Globle varible to cache pointer to CpuIo protocol.
|
||||
//
|
||||
STATIC EFI_CPU_IO_PROTOCOL *mCpuIo = NULL;
|
||||
STATIC EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *mPciRootBridgeIo = NULL;
|
||||
|
||||
/**
|
||||
The constructor function caches the pointer to CpuIo protocol.
|
||||
|
||||
The constructor function locates CpuIo protocol from protocol database.
|
||||
It will ASSERT() if that operation fails and it will always return EFI_SUCCESS.
|
||||
|
||||
@param ImageHandle The firmware allocated handle for the EFI image.
|
||||
@param SystemTable A pointer to the EFI System Table.
|
||||
|
||||
@retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
IoLibConstructor (
|
||||
IN EFI_HANDLE ImageHandle,
|
||||
IN EFI_SYSTEM_TABLE *SystemTable
|
||||
)
|
||||
{
|
||||
EFI_STATUS Status;
|
||||
|
||||
Status = gBS->LocateProtocol (&gEfiPciRootBridgeIoProtocolGuid, NULL, &mPciRootBridgeIo);
|
||||
if (EFI_ERROR (Status)) {
|
||||
Status = gBS->LocateProtocol (&gEfiCpuIoProtocolGuid, NULL, &mCpuIo);
|
||||
}
|
||||
ASSERT_EFI_ERROR (Status);
|
||||
|
||||
return Status;
|
||||
}
|
||||
|
||||
/**
|
||||
Reads registers in the EFI CPU I/O space.
|
||||
|
||||
Reads the I/O port specified by Port with registers width specified by Width.
|
||||
The read value is returned. If such operations are not supported, then ASSERT().
|
||||
This function must guarantee that all I/O read and write operations are serialized.
|
||||
|
||||
@param Port The base address of the I/O operation.
|
||||
The caller is responsible for aligning the Address if required.
|
||||
@param Width The width of the I/O operation.
|
||||
|
||||
@return Data read from registers in the EFI CPU I/O space.
|
||||
|
||||
**/
|
||||
UINT64
|
||||
EFIAPI
|
||||
IoReadWorker (
|
||||
IN UINTN Port,
|
||||
IN EFI_CPU_IO_PROTOCOL_WIDTH Width
|
||||
)
|
||||
{
|
||||
EFI_STATUS Status;
|
||||
UINT64 Data;
|
||||
|
||||
if (mPciRootBridgeIo != NULL) {
|
||||
Status = mPciRootBridgeIo->Io.Read (mPciRootBridgeIo, Width, Port, 1, &Data);
|
||||
} else {
|
||||
Status = mCpuIo->Io.Read (mCpuIo, Width, Port, 1, &Data);
|
||||
}
|
||||
ASSERT_EFI_ERROR (Status);
|
||||
|
||||
return Data;
|
||||
}
|
||||
|
||||
/**
|
||||
Writes registers in the EFI CPU I/O space.
|
||||
|
||||
Writes the I/O port specified by Port with registers width and value specified by Width
|
||||
and Data respectively. Data is returned. If such operations are not supported, then ASSERT().
|
||||
This function must guarantee that all I/O read and write operations are serialized.
|
||||
|
||||
@param Port The base address of the I/O operation.
|
||||
The caller is responsible for aligning the Address if required.
|
||||
@param Width The width of the I/O operation.
|
||||
@param Data The value to write to the I/O port.
|
||||
|
||||
@return The paramter of Data.
|
||||
|
||||
**/
|
||||
UINT64
|
||||
EFIAPI
|
||||
IoWriteWorker (
|
||||
IN UINTN Port,
|
||||
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
|
||||
IN UINT64 Data
|
||||
)
|
||||
{
|
||||
EFI_STATUS Status;
|
||||
|
||||
if (mPciRootBridgeIo != NULL) {
|
||||
Status = mPciRootBridgeIo->Io.Write (mPciRootBridgeIo, Width, Port, 1, &Data);
|
||||
} else {
|
||||
Status = mCpuIo->Io.Write (mCpuIo, Width, Port, 1, &Data);
|
||||
}
|
||||
ASSERT_EFI_ERROR (Status);
|
||||
|
||||
return Data;
|
||||
}
|
||||
|
||||
/**
|
||||
Reads memory-mapped registers in the EFI system memory space.
|
||||
|
||||
Reads the MMIO registers specified by Address with registers width specified by Width.
|
||||
The read value is returned. If such operations are not supported, then ASSERT().
|
||||
This function must guarantee that all MMIO read and write operations are serialized.
|
||||
|
||||
@param Address The MMIO register to read.
|
||||
The caller is responsible for aligning the Address if required.
|
||||
@param Width The width of the I/O operation.
|
||||
|
||||
@return Data read from registers in the EFI system memory space.
|
||||
|
||||
**/
|
||||
UINT64
|
||||
EFIAPI
|
||||
MmioReadWorker (
|
||||
IN UINTN Address,
|
||||
IN EFI_CPU_IO_PROTOCOL_WIDTH Width
|
||||
)
|
||||
{
|
||||
EFI_STATUS Status;
|
||||
UINT64 Data;
|
||||
|
||||
if (mPciRootBridgeIo != NULL) {
|
||||
Status = mPciRootBridgeIo.Mem.Read (mPciRootBridgeIo, Width, Address, 1, &Data);
|
||||
} else {
|
||||
Status = mCpuIo->Mem.Read (mCpuIo, Width, Address, 1, &Data);
|
||||
}
|
||||
ASSERT_EFI_ERROR (Status);
|
||||
|
||||
return Data;
|
||||
}
|
||||
|
||||
/**
|
||||
Writes memory-mapped registers in the EFI system memory space.
|
||||
|
||||
Writes the MMIO registers specified by Address with registers width and value specified by Width
|
||||
and Data respectively. Data is returned. If such operations are not supported, then ASSERT().
|
||||
This function must guarantee that all MMIO read and write operations are serialized.
|
||||
|
||||
@param Address The MMIO register to read.
|
||||
The caller is responsible for aligning the Address if required.
|
||||
@param Width The width of the I/O operation.
|
||||
|
||||
@return Data read from registers in the EFI system memory space.
|
||||
|
||||
**/
|
||||
UINT64
|
||||
EFIAPI
|
||||
MmioWriteWorker (
|
||||
IN UINTN Address,
|
||||
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
|
||||
IN UINT64 Data
|
||||
)
|
||||
{
|
||||
EFI_STATUS Status;
|
||||
|
||||
if (mPciRootBridgeIo != NULL) {
|
||||
Status = mPciRootBridgeIo->Mem.Write (mPciRootBridgeIo, Width, Address, 1, &Data);
|
||||
} else {
|
||||
Status = mCpuIo->Mem.Write (mCpuIo, Width, Address, 1, &Data);
|
||||
}
|
||||
ASSERT_EFI_ERROR (Status);
|
||||
|
||||
return Data;
|
||||
}
|
||||
|
||||
/**
|
||||
Reads an 8-bit I/O port.
|
||||
|
||||
Reads the 8-bit I/O port specified by Port. The 8-bit read value is returned.
|
||||
This function must guarantee that all I/O read and write operations are
|
||||
serialized.
|
||||
|
||||
If 8-bit I/O port operations are not supported, then ASSERT().
|
||||
|
||||
@param Port The I/O port to read.
|
||||
|
||||
@return The value read.
|
||||
|
||||
**/
|
||||
UINT8
|
||||
EFIAPI
|
||||
IoRead8 (
|
||||
IN UINTN Port
|
||||
)
|
||||
{
|
||||
return (UINT8)IoReadWorker (Port, EfiCpuIoWidthUint8);
|
||||
}
|
||||
|
||||
/**
|
||||
Writes an 8-bit I/O port.
|
||||
|
||||
Writes the 8-bit I/O port specified by Port with the value specified by Value
|
||||
and returns Value. This function must guarantee that all I/O read and write
|
||||
operations are serialized.
|
||||
|
||||
If 8-bit I/O port operations are not supported, then ASSERT().
|
||||
|
||||
@param Port The I/O port to write.
|
||||
@param Value The value to write to the I/O port.
|
||||
|
||||
@return The value written the I/O port.
|
||||
|
||||
**/
|
||||
UINT8
|
||||
EFIAPI
|
||||
IoWrite8 (
|
||||
IN UINTN Port,
|
||||
IN UINT8 Value
|
||||
)
|
||||
{
|
||||
return (UINT8)IoWriteWorker (Port, EfiCpuIoWidthUint8, Value);
|
||||
}
|
||||
|
||||
/**
|
||||
Reads a 16-bit I/O port.
|
||||
|
||||
Reads the 16-bit I/O port specified by Port. The 16-bit read value is returned.
|
||||
This function must guarantee that all I/O read and write operations are
|
||||
serialized.
|
||||
|
||||
If 16-bit I/O port operations are not supported, then ASSERT().
|
||||
|
||||
@param Port The I/O port to read.
|
||||
|
||||
@return The value read.
|
||||
|
||||
**/
|
||||
UINT16
|
||||
EFIAPI
|
||||
IoRead16 (
|
||||
IN UINTN Port
|
||||
)
|
||||
{
|
||||
//
|
||||
// Make sure Port is aligned on a 16-bit boundary.
|
||||
//
|
||||
ASSERT ((Port & 1) == 0);
|
||||
return (UINT16)IoReadWorker (Port, EfiCpuIoWidthUint16);
|
||||
}
|
||||
|
||||
/**
|
||||
Writes a 16-bit I/O port.
|
||||
|
||||
Writes the 16-bit I/O port specified by Port with the value specified by Value
|
||||
and returns Value. This function must guarantee that all I/O read and write
|
||||
operations are serialized.
|
||||
|
||||
If 16-bit I/O port operations are not supported, then ASSERT().
|
||||
|
||||
@param Port The I/O port to write.
|
||||
@param Value The value to write to the I/O port.
|
||||
|
||||
@return The value written the I/O port.
|
||||
|
||||
**/
|
||||
UINT16
|
||||
EFIAPI
|
||||
IoWrite16 (
|
||||
IN UINTN Port,
|
||||
IN UINT16 Value
|
||||
)
|
||||
{
|
||||
//
|
||||
// Make sure Port is aligned on a 16-bit boundary.
|
||||
//
|
||||
ASSERT ((Port & 1) == 0);
|
||||
return (UINT16)IoWriteWorker (Port, EfiCpuIoWidthUint16, Value);
|
||||
}
|
||||
|
||||
/**
|
||||
Reads a 32-bit I/O port.
|
||||
|
||||
Reads the 32-bit I/O port specified by Port. The 32-bit read value is returned.
|
||||
This function must guarantee that all I/O read and write operations are
|
||||
serialized.
|
||||
|
||||
If 32-bit I/O port operations are not supported, then ASSERT().
|
||||
|
||||
@param Port The I/O port to read.
|
||||
|
||||
@return The value read.
|
||||
|
||||
**/
|
||||
UINT32
|
||||
EFIAPI
|
||||
IoRead32 (
|
||||
IN UINTN Port
|
||||
)
|
||||
{
|
||||
//
|
||||
// Make sure Port is aligned on a 32-bit boundary.
|
||||
//
|
||||
ASSERT ((Port & 3) == 0);
|
||||
return (UINT32)IoReadWorker (Port, EfiCpuIoWidthUint32);
|
||||
}
|
||||
|
||||
/**
|
||||
Writes a 32-bit I/O port.
|
||||
|
||||
Writes the 32-bit I/O port specified by Port with the value specified by Value
|
||||
and returns Value. This function must guarantee that all I/O read and write
|
||||
operations are serialized.
|
||||
|
||||
If 32-bit I/O port operations are not supported, then ASSERT().
|
||||
|
||||
@param Port The I/O port to write.
|
||||
@param Value The value to write to the I/O port.
|
||||
|
||||
@return The value written the I/O port.
|
||||
|
||||
**/
|
||||
UINT32
|
||||
EFIAPI
|
||||
IoWrite32 (
|
||||
IN UINTN Port,
|
||||
IN UINT32 Value
|
||||
)
|
||||
{
|
||||
//
|
||||
// Make sure Port is aligned on a 32-bit boundary.
|
||||
//
|
||||
ASSERT ((Port & 3) == 0);
|
||||
return (UINT32)IoWriteWorker (Port, EfiCpuIoWidthUint32, Value);
|
||||
}
|
||||
|
||||
/**
|
||||
Reads a 64-bit I/O port.
|
||||
|
||||
Reads the 64-bit I/O port specified by Port. The 64-bit read value is returned.
|
||||
This function must guarantee that all I/O read and write operations are
|
||||
serialized.
|
||||
|
||||
If 64-bit I/O port operations are not supported, then ASSERT().
|
||||
|
||||
@param Port The I/O port to read.
|
||||
|
||||
@return The value read.
|
||||
|
||||
**/
|
||||
UINT64
|
||||
EFIAPI
|
||||
IoRead64 (
|
||||
IN UINTN Port
|
||||
)
|
||||
{
|
||||
//
|
||||
// Make sure Port is aligned on a 64-bit boundary.
|
||||
//
|
||||
ASSERT ((Port & 7) == 0);
|
||||
return IoReadWorker (Port, EfiCpuIoWidthUint64);
|
||||
}
|
||||
|
||||
/**
|
||||
Writes a 64-bit I/O port.
|
||||
|
||||
Writes the 64-bit I/O port specified by Port with the value specified by Value
|
||||
and returns Value. This function must guarantee that all I/O read and write
|
||||
operations are serialized.
|
||||
|
||||
If 64-bit I/O port operations are not supported, then ASSERT().
|
||||
|
||||
@param Port The I/O port to write.
|
||||
@param Value The value to write to the I/O port.
|
||||
|
||||
@return The value written the I/O port.
|
||||
|
||||
**/
|
||||
UINT64
|
||||
EFIAPI
|
||||
IoWrite64 (
|
||||
IN UINTN Port,
|
||||
IN UINT64 Value
|
||||
)
|
||||
{
|
||||
//
|
||||
// Make sure Port is aligned on a 64-bit boundary.
|
||||
//
|
||||
ASSERT ((Port & 7) == 0);
|
||||
return IoWriteWorker (Port, EfiCpuIoWidthUint64, Value);
|
||||
}
|
||||
|
||||
/**
|
||||
Reads an 8-bit MMIO register.
|
||||
|
||||
Reads the 8-bit MMIO register specified by Address. The 8-bit read value is
|
||||
returned. This function must guarantee that all MMIO read and write
|
||||
operations are serialized.
|
||||
|
||||
If 8-bit MMIO register operations are not supported, then ASSERT().
|
||||
|
||||
@param Address The MMIO register to read.
|
||||
|
||||
@return The value read.
|
||||
|
||||
**/
|
||||
UINT8
|
||||
EFIAPI
|
||||
MmioRead8 (
|
||||
IN UINTN Address
|
||||
)
|
||||
{
|
||||
return (UINT8)MmioReadWorker (Address, EfiCpuIoWidthUint8);
|
||||
}
|
||||
|
||||
/**
|
||||
Writes an 8-bit MMIO register.
|
||||
|
||||
Writes the 8-bit MMIO register specified by Address with the value specified
|
||||
by Value and returns Value. This function must guarantee that all MMIO read
|
||||
and write operations are serialized.
|
||||
|
||||
If 8-bit MMIO register operations are not supported, then ASSERT().
|
||||
|
||||
@param Address The MMIO register to write.
|
||||
@param Value The value to write to the MMIO register.
|
||||
|
||||
**/
|
||||
UINT8
|
||||
EFIAPI
|
||||
MmioWrite8 (
|
||||
IN UINTN Address,
|
||||
IN UINT8 Value
|
||||
)
|
||||
{
|
||||
return (UINT8)MmioWriteWorker (Address, EfiCpuIoWidthUint8, Value);
|
||||
}
|
||||
|
||||
/**
|
||||
Reads a 16-bit MMIO register.
|
||||
|
||||
Reads the 16-bit MMIO register specified by Address. The 16-bit read value is
|
||||
returned. This function must guarantee that all MMIO read and write
|
||||
operations are serialized.
|
||||
|
||||
If 16-bit MMIO register operations are not supported, then ASSERT().
|
||||
|
||||
@param Address The MMIO register to read.
|
||||
|
||||
@return The value read.
|
||||
|
||||
**/
|
||||
UINT16
|
||||
EFIAPI
|
||||
MmioRead16 (
|
||||
IN UINTN Address
|
||||
)
|
||||
{
|
||||
//
|
||||
// Make sure Address is aligned on a 16-bit boundary.
|
||||
//
|
||||
ASSERT ((Address & 1) == 0);
|
||||
return (UINT16)MmioReadWorker (Address, EfiCpuIoWidthUint16);
|
||||
}
|
||||
|
||||
/**
|
||||
Writes a 16-bit MMIO register.
|
||||
|
||||
Writes the 16-bit MMIO register specified by Address with the value specified
|
||||
by Value and returns Value. This function must guarantee that all MMIO read
|
||||
and write operations are serialized.
|
||||
|
||||
If 16-bit MMIO register operations are not supported, then ASSERT().
|
||||
|
||||
@param Address The MMIO register to write.
|
||||
@param Value The value to write to the MMIO register.
|
||||
|
||||
**/
|
||||
UINT16
|
||||
EFIAPI
|
||||
MmioWrite16 (
|
||||
IN UINTN Address,
|
||||
IN UINT16 Value
|
||||
)
|
||||
{
|
||||
//
|
||||
// Make sure Address is aligned on a 16-bit boundary.
|
||||
//
|
||||
ASSERT ((Address & 1) == 0);
|
||||
return (UINT16)MmioWriteWorker (Address, EfiCpuIoWidthUint16, Value);
|
||||
}
|
||||
|
||||
/**
|
||||
Reads a 32-bit MMIO register.
|
||||
|
||||
Reads the 32-bit MMIO register specified by Address. The 32-bit read value is
|
||||
returned. This function must guarantee that all MMIO read and write
|
||||
operations are serialized.
|
||||
|
||||
If 32-bit MMIO register operations are not supported, then ASSERT().
|
||||
|
||||
@param Address The MMIO register to read.
|
||||
|
||||
@return The value read.
|
||||
|
||||
**/
|
||||
UINT32
|
||||
EFIAPI
|
||||
MmioRead32 (
|
||||
IN UINTN Address
|
||||
)
|
||||
{
|
||||
//
|
||||
// Make sure Address is aligned on a 32-bit boundary.
|
||||
//
|
||||
ASSERT ((Address & 3) == 0);
|
||||
return (UINT32)MmioReadWorker (Address, EfiCpuIoWidthUint32);
|
||||
}
|
||||
|
||||
/**
|
||||
Writes a 32-bit MMIO register.
|
||||
|
||||
Writes the 32-bit MMIO register specified by Address with the value specified
|
||||
by Value and returns Value. This function must guarantee that all MMIO read
|
||||
and write operations are serialized.
|
||||
|
||||
If 32-bit MMIO register operations are not supported, then ASSERT().
|
||||
|
||||
@param Address The MMIO register to write.
|
||||
@param Value The value to write to the MMIO register.
|
||||
|
||||
**/
|
||||
UINT32
|
||||
EFIAPI
|
||||
MmioWrite32 (
|
||||
IN UINTN Address,
|
||||
IN UINT32 Value
|
||||
)
|
||||
{
|
||||
//
|
||||
// Make sure Address is aligned on a 32-bit boundary.
|
||||
//
|
||||
ASSERT ((Address & 3) == 0);
|
||||
return (UINT32)MmioWriteWorker (Address, EfiCpuIoWidthUint32, Value);
|
||||
}
|
||||
|
||||
/**
|
||||
Reads a 64-bit MMIO register.
|
||||
|
||||
Reads the 64-bit MMIO register specified by Address. The 64-bit read value is
|
||||
returned. This function must guarantee that all MMIO read and write
|
||||
operations are serialized.
|
||||
|
||||
If 64-bit MMIO register operations are not supported, then ASSERT().
|
||||
|
||||
@param Address The MMIO register to read.
|
||||
|
||||
@return The value read.
|
||||
|
||||
**/
|
||||
UINT64
|
||||
EFIAPI
|
||||
MmioRead64 (
|
||||
IN UINTN Address
|
||||
)
|
||||
{
|
||||
//
|
||||
// Make sure Address is aligned on a 64-bit boundary.
|
||||
//
|
||||
ASSERT ((Address & 7) == 0);
|
||||
return (UINT64)MmioReadWorker (Address, EfiCpuIoWidthUint64);
|
||||
}
|
||||
|
||||
/**
|
||||
Writes a 64-bit MMIO register.
|
||||
|
||||
Writes the 64-bit MMIO register specified by Address with the value specified
|
||||
by Value and returns Value. This function must guarantee that all MMIO read
|
||||
and write operations are serialized.
|
||||
|
||||
If 64-bit MMIO register operations are not supported, then ASSERT().
|
||||
|
||||
@param Address The MMIO register to write.
|
||||
@param Value The value to write to the MMIO register.
|
||||
|
||||
**/
|
||||
UINT64
|
||||
EFIAPI
|
||||
MmioWrite64 (
|
||||
IN UINTN Address,
|
||||
IN UINT64 Value
|
||||
)
|
||||
{
|
||||
//
|
||||
// Make sure Address is aligned on a 64-bit boundary.
|
||||
//
|
||||
ASSERT ((Address & 7) == 0);
|
||||
return (UINT64)MmioWriteWorker (Address, EfiCpuIoWidthUint64, Value);
|
||||
}
|
||||
411
IntelFrameworkPkg/Library/DxeIoLibCpuIo/IoLibMmioBuffer.c
Normal file
411
IntelFrameworkPkg/Library/DxeIoLibCpuIo/IoLibMmioBuffer.c
Normal file
@@ -0,0 +1,411 @@
|
||||
/** @file
|
||||
I/O Library MMIO Buffer Functions.
|
||||
|
||||
Copyright (c) 2007, Intel Corporation<BR>
|
||||
All rights reserved. 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.
|
||||
|
||||
**/
|
||||
|
||||
#include "DxeCpuIoLibInternal.h"
|
||||
|
||||
/**
|
||||
Copy data from MMIO region to system memory by using 8-bit access.
|
||||
|
||||
Copy data from MMIO region specified by starting address StartAddress
|
||||
to system memory specified by Buffer by using 8-bit access. The total
|
||||
number of byte to be copied is specified by Length. Buffer is returned.
|
||||
|
||||
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
|
||||
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
|
||||
|
||||
|
||||
@param StartAddress Starting address for the MMIO region to be copied from.
|
||||
@param Length Size in bytes of the copy.
|
||||
@param Buffer Pointer to a system memory buffer receiving the data read.
|
||||
|
||||
@return Buffer
|
||||
|
||||
**/
|
||||
UINT8 *
|
||||
EFIAPI
|
||||
MmioReadBuffer8 (
|
||||
IN UINTN StartAddress,
|
||||
IN UINTN Length,
|
||||
OUT UINT8 *Buffer
|
||||
)
|
||||
{
|
||||
UINT8 *ReturnBuffer;
|
||||
|
||||
ASSERT ((Length - 1) <= (MAX_ADDRESS - StartAddress));
|
||||
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN) Buffer));
|
||||
|
||||
ReturnBuffer = Buffer;
|
||||
|
||||
while (Length--) {
|
||||
*(Buffer++) = MmioRead8 (StartAddress++);
|
||||
}
|
||||
|
||||
return ReturnBuffer;
|
||||
}
|
||||
|
||||
/**
|
||||
Copy data from MMIO region to system memory by using 16-bit access.
|
||||
|
||||
Copy data from MMIO region specified by starting address StartAddress
|
||||
to system memory specified by Buffer by using 16-bit access. The total
|
||||
number of byte to be copied is specified by Length. Buffer is returned.
|
||||
|
||||
If StartAddress is not aligned on a 16-bit boundary, then ASSERT().
|
||||
|
||||
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
|
||||
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
|
||||
|
||||
If Length is not aligned on a 16-bit boundary, then ASSERT().
|
||||
If Buffer is not aligned on a 16-bit boundary, then ASSERT().
|
||||
|
||||
@param StartAddress Starting address for the MMIO region to be copied from.
|
||||
@param Length Size in bytes of the copy.
|
||||
@param Buffer Pointer to a system memory buffer receiving the data read.
|
||||
|
||||
@return Buffer
|
||||
|
||||
**/
|
||||
UINT16 *
|
||||
EFIAPI
|
||||
MmioReadBuffer16 (
|
||||
IN UINTN StartAddress,
|
||||
IN UINTN Length,
|
||||
OUT UINT16 *Buffer
|
||||
)
|
||||
{
|
||||
UINT16 *ReturnBuffer;
|
||||
|
||||
ASSERT ((StartAddress & (sizeof (UINT16) - 1)) == 0);
|
||||
|
||||
ASSERT ((Length - 1) <= (MAX_ADDRESS - StartAddress));
|
||||
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN) Buffer));
|
||||
|
||||
ASSERT ((Length & (sizeof (UINT16) - 1)) == 0);
|
||||
ASSERT (((UINTN) Buffer & (sizeof (UINT16) - 1)) == 0);
|
||||
|
||||
ReturnBuffer = Buffer;
|
||||
|
||||
while (Length) {
|
||||
*(Buffer++) = MmioRead16 (StartAddress);
|
||||
StartAddress += sizeof (UINT16);
|
||||
Length -= sizeof (UINT16);
|
||||
}
|
||||
|
||||
return ReturnBuffer;
|
||||
}
|
||||
|
||||
/**
|
||||
Copy data from MMIO region to system memory by using 32-bit access.
|
||||
|
||||
Copy data from MMIO region specified by starting address StartAddress
|
||||
to system memory specified by Buffer by using 32-bit access. The total
|
||||
number of byte to be copied is specified by Length. Buffer is returned.
|
||||
|
||||
If StartAddress is not aligned on a 32-bit boundary, then ASSERT().
|
||||
|
||||
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
|
||||
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
|
||||
|
||||
If Length is not aligned on a 32-bit boundary, then ASSERT().
|
||||
If Buffer is not aligned on a 32-bit boundary, then ASSERT().
|
||||
|
||||
@param StartAddress Starting address for the MMIO region to be copied from.
|
||||
@param Length Size in bytes of the copy.
|
||||
@param Buffer Pointer to a system memory buffer receiving the data read.
|
||||
|
||||
@return Buffer
|
||||
|
||||
**/
|
||||
UINT32 *
|
||||
EFIAPI
|
||||
MmioReadBuffer32 (
|
||||
IN UINTN StartAddress,
|
||||
IN UINTN Length,
|
||||
OUT UINT32 *Buffer
|
||||
)
|
||||
{
|
||||
UINT32 *ReturnBuffer;
|
||||
|
||||
ASSERT ((StartAddress & (sizeof (UINT32) - 1)) == 0);
|
||||
|
||||
ASSERT ((Length - 1) <= (MAX_ADDRESS - StartAddress));
|
||||
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN) Buffer));
|
||||
|
||||
ASSERT ((Length & (sizeof (UINT32) - 1)) == 0);
|
||||
ASSERT (((UINTN) Buffer & (sizeof (UINT32) - 1)) == 0);
|
||||
|
||||
ReturnBuffer = Buffer;
|
||||
|
||||
while (Length) {
|
||||
*(Buffer++) = MmioRead32 (StartAddress);
|
||||
StartAddress += sizeof (UINT32);
|
||||
Length -= sizeof (UINT32);
|
||||
}
|
||||
|
||||
return ReturnBuffer;
|
||||
}
|
||||
|
||||
/**
|
||||
Copy data from MMIO region to system memory by using 64-bit access.
|
||||
|
||||
Copy data from MMIO region specified by starting address StartAddress
|
||||
to system memory specified by Buffer by using 64-bit access. The total
|
||||
number of byte to be copied is specified by Length. Buffer is returned.
|
||||
|
||||
If StartAddress is not aligned on a 64-bit boundary, then ASSERT().
|
||||
|
||||
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
|
||||
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
|
||||
|
||||
If Length is not aligned on a 64-bit boundary, then ASSERT().
|
||||
If Buffer is not aligned on a 64-bit boundary, then ASSERT().
|
||||
|
||||
@param StartAddress Starting address for the MMIO region to be copied from.
|
||||
@param Length Size in bytes of the copy.
|
||||
@param Buffer Pointer to a system memory buffer receiving the data read.
|
||||
|
||||
@return Buffer
|
||||
|
||||
**/
|
||||
UINT64 *
|
||||
EFIAPI
|
||||
MmioReadBuffer64 (
|
||||
IN UINTN StartAddress,
|
||||
IN UINTN Length,
|
||||
OUT UINT64 *Buffer
|
||||
)
|
||||
{
|
||||
UINT64 *ReturnBuffer;
|
||||
|
||||
ASSERT ((StartAddress & (sizeof (UINT64) - 1)) == 0);
|
||||
|
||||
ASSERT ((Length - 1) <= (MAX_ADDRESS - StartAddress));
|
||||
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN) Buffer));
|
||||
|
||||
ASSERT ((Length & (sizeof (UINT64) - 1)) == 0);
|
||||
ASSERT (((UINTN) Buffer & (sizeof (UINT64) - 1)) == 0);
|
||||
|
||||
ReturnBuffer = Buffer;
|
||||
|
||||
while (Length) {
|
||||
*(Buffer++) = MmioRead64 (StartAddress);
|
||||
StartAddress += sizeof (UINT64);
|
||||
Length -= sizeof (UINT64);
|
||||
}
|
||||
|
||||
return ReturnBuffer;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
Copy data from system memory to MMIO region by using 8-bit access.
|
||||
|
||||
Copy data from system memory specified by Buffer to MMIO region specified
|
||||
by starting address StartAddress by using 8-bit access. The total number
|
||||
of byte to be copied is specified by Length. Buffer is returned.
|
||||
|
||||
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
|
||||
If Length is greater than (MAX_ADDRESS -Buffer + 1), then ASSERT().
|
||||
|
||||
|
||||
@param StartAddress Starting address for the MMIO region to be copied to.
|
||||
@param Length Size in bytes of the copy.
|
||||
@param Buffer Pointer to a system memory buffer containing the data to write.
|
||||
|
||||
@return Size in bytes of the copy.
|
||||
|
||||
**/
|
||||
UINT8 *
|
||||
EFIAPI
|
||||
MmioWriteBuffer8 (
|
||||
IN UINTN StartAddress,
|
||||
IN UINTN Length,
|
||||
IN CONST UINT8 *Buffer
|
||||
)
|
||||
{
|
||||
VOID* ReturnBuffer;
|
||||
|
||||
ASSERT ((Length - 1) <= (MAX_ADDRESS - StartAddress));
|
||||
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN) Buffer));
|
||||
|
||||
ReturnBuffer = (UINT8 *) Buffer;
|
||||
|
||||
while (Length--) {
|
||||
MmioWrite8 (StartAddress++, *(Buffer++));
|
||||
}
|
||||
|
||||
return ReturnBuffer;
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
Copy data from system memory to MMIO region by using 16-bit access.
|
||||
|
||||
Copy data from system memory specified by Buffer to MMIO region specified
|
||||
by starting address StartAddress by using 16-bit access. The total number
|
||||
of byte to be copied is specified by Length. Length is returned.
|
||||
|
||||
If StartAddress is not aligned on a 16-bit boundary, then ASSERT().
|
||||
|
||||
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
|
||||
If Length is greater than (MAX_ADDRESS -Buffer + 1), then ASSERT().
|
||||
|
||||
If Length is not aligned on a 16-bit boundary, then ASSERT().
|
||||
|
||||
If Buffer is not aligned on a 16-bit boundary, then ASSERT().
|
||||
|
||||
@param StartAddress Starting address for the MMIO region to be copied to.
|
||||
@param Length Size in bytes of the copy.
|
||||
@param Buffer Pointer to a system memory buffer containing the data to write.
|
||||
|
||||
@return Size in bytes of the copy.
|
||||
|
||||
**/
|
||||
UINT16 *
|
||||
EFIAPI
|
||||
MmioWriteBuffer16 (
|
||||
IN UINTN StartAddress,
|
||||
IN UINTN Length,
|
||||
IN CONST UINT16 *Buffer
|
||||
)
|
||||
{
|
||||
UINT16 *ReturnBuffer;
|
||||
|
||||
ASSERT ((StartAddress & (sizeof (UINT16) - 1)) == 0);
|
||||
|
||||
ASSERT ((Length - 1) <= (MAX_ADDRESS - StartAddress));
|
||||
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN) Buffer));
|
||||
|
||||
ASSERT ((Length & (sizeof (UINT16) - 1)) == 0);
|
||||
ASSERT (((UINTN) Buffer & (sizeof (UINT16) - 1)) == 0);
|
||||
|
||||
ReturnBuffer = (UINT16 *) Buffer;
|
||||
|
||||
while (Length) {
|
||||
MmioWrite16 (StartAddress, *(Buffer++));
|
||||
|
||||
StartAddress += sizeof (UINT16);
|
||||
Length -= sizeof (UINT16);
|
||||
}
|
||||
|
||||
return ReturnBuffer;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
Copy data from system memory to MMIO region by using 32-bit access.
|
||||
|
||||
Copy data from system memory specified by Buffer to MMIO region specified
|
||||
by starting address StartAddress by using 32-bit access. The total number
|
||||
of byte to be copied is specified by Length. Length is returned.
|
||||
|
||||
If StartAddress is not aligned on a 32-bit boundary, then ASSERT().
|
||||
|
||||
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
|
||||
If Length is greater than (MAX_ADDRESS -Buffer + 1), then ASSERT().
|
||||
|
||||
If Length is not aligned on a 32-bit boundary, then ASSERT().
|
||||
|
||||
If Buffer is not aligned on a 32-bit boundary, then ASSERT().
|
||||
|
||||
@param StartAddress Starting address for the MMIO region to be copied to.
|
||||
@param Length Size in bytes of the copy.
|
||||
@param Buffer Pointer to a system memory buffer containing the data to write.
|
||||
|
||||
@return Size in bytes of the copy.
|
||||
|
||||
**/
|
||||
UINT32 *
|
||||
EFIAPI
|
||||
MmioWriteBuffer32 (
|
||||
IN UINTN StartAddress,
|
||||
IN UINTN Length,
|
||||
IN CONST UINT32 *Buffer
|
||||
)
|
||||
{
|
||||
UINT32 *ReturnBuffer;
|
||||
|
||||
ASSERT ((StartAddress & (sizeof (UINT32) - 1)) == 0);
|
||||
|
||||
ASSERT ((Length - 1) <= (MAX_ADDRESS - StartAddress));
|
||||
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN) Buffer));
|
||||
|
||||
ASSERT ((Length & (sizeof (UINT32) - 1)) == 0);
|
||||
ASSERT (((UINTN) Buffer & (sizeof (UINT32) - 1)) == 0);
|
||||
|
||||
ReturnBuffer = (UINT32 *) Buffer;
|
||||
|
||||
while (Length) {
|
||||
MmioWrite32 (StartAddress, *(Buffer++));
|
||||
|
||||
StartAddress += sizeof (UINT32);
|
||||
Length -= sizeof (UINT32);
|
||||
}
|
||||
|
||||
return ReturnBuffer;
|
||||
}
|
||||
|
||||
/**
|
||||
Copy data from system memory to MMIO region by using 64-bit access.
|
||||
|
||||
Copy data from system memory specified by Buffer to MMIO region specified
|
||||
by starting address StartAddress by using 64-bit access. The total number
|
||||
of byte to be copied is specified by Length. Length is returned.
|
||||
|
||||
If StartAddress is not aligned on a 64-bit boundary, then ASSERT().
|
||||
|
||||
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
|
||||
If Length is greater than (MAX_ADDRESS -Buffer + 1), then ASSERT().
|
||||
|
||||
If Length is not aligned on a 64-bit boundary, then ASSERT().
|
||||
|
||||
If Buffer is not aligned on a 64-bit boundary, then ASSERT().
|
||||
|
||||
@param StartAddress Starting address for the MMIO region to be copied to.
|
||||
@param Length Size in bytes of the copy.
|
||||
@param Buffer Pointer to a system memory buffer containing the data to write.
|
||||
|
||||
@return Size in bytes of the copy.
|
||||
|
||||
**/
|
||||
UINT64 *
|
||||
EFIAPI
|
||||
MmioWriteBuffer64 (
|
||||
IN UINTN StartAddress,
|
||||
IN UINTN Length,
|
||||
IN CONST UINT64 *Buffer
|
||||
)
|
||||
{
|
||||
UINT64 *ReturnBuffer;
|
||||
|
||||
ASSERT ((StartAddress & (sizeof (UINT64) - 1)) == 0);
|
||||
|
||||
ASSERT ((Length - 1) <= (MAX_ADDRESS - StartAddress));
|
||||
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN) Buffer));
|
||||
|
||||
ASSERT ((Length & (sizeof (UINT64) - 1)) == 0);
|
||||
ASSERT (((UINTN) Buffer & (sizeof (UINT64) - 1)) == 0);
|
||||
|
||||
ReturnBuffer = (UINT64 *) Buffer;
|
||||
|
||||
while (Length) {
|
||||
MmioWrite64 (StartAddress, *(Buffer++));
|
||||
|
||||
StartAddress += sizeof (UINT64);
|
||||
Length -= sizeof (UINT64);
|
||||
}
|
||||
|
||||
return ReturnBuffer;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user