diff options
Diffstat (limited to 'EdkNt32Pkg/Dxe/WinNtThunk/Cpu/CpuIo.c')
| -rw-r--r-- | EdkNt32Pkg/Dxe/WinNtThunk/Cpu/CpuIo.c | 335 |
1 files changed, 0 insertions, 335 deletions
diff --git a/EdkNt32Pkg/Dxe/WinNtThunk/Cpu/CpuIo.c b/EdkNt32Pkg/Dxe/WinNtThunk/Cpu/CpuIo.c deleted file mode 100644 index 4aaa431d54..0000000000 --- a/EdkNt32Pkg/Dxe/WinNtThunk/Cpu/CpuIo.c +++ /dev/null @@ -1,335 +0,0 @@ -/*++
-
-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:
-
- CpuIo.c
-
-Abstract:
-
- This is the code that publishes the CPU I/O Protocol.
- The intent herein is to have a single I/O service that can load
- as early as possible, extend into runtime, and be layered upon by
- the implementations of architectural protocols and the PCI Root
- Bridge I/O Protocol.
-
---*/
-
-#include <CpuDriver.h>
-
-#define IA32_MAX_IO_ADDRESS 0xFFFF
-#define IA32_MAX_MEM_ADDRESS 0xFFFFFFFF
-
-EFI_CPU_IO_PROTOCOL mCpuIoProtocol;
-
-EFI_STATUS
-CpuIoCheckAddressRange (
- IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- IN VOID *Buffer,
- IN UINT64 Limit
- );
-
-EFI_STATUS
-EFIAPI
-CpuMemoryServiceRead (
- IN EFI_CPU_IO_PROTOCOL *This,
- IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- IN OUT VOID *Buffer
- )
-/*++
-
-Routine Description:
-
- Perform the Memory Access Read service for the CPU I/O Protocol
-
-Arguments:
-
- Pointer to an instance of the CPU I/O Protocol
- Width of the Memory Access
- Address of the Memory access
- Count of the number of accesses to perform
- Pointer to the buffer to read or write from memory
-
-Returns:
-
- Status
-
- EFI_SUCCESS - The data was read from or written to the EFI
- System.
- EFI_INVALID_PARAMETER - Width is invalid for this EFI System.
- EFI_INVALID_PARAMETER - Buffer is NULL.
- EFI_UNSUPPORTED - The Buffer is not aligned for the given Width.
- EFI_UNSUPPORTED - The address range specified by Address, Width,
- and Count is not valid for this EFI System.
-
---*/
-// TODO: This - add argument and description to function comment
-{
- EFI_STATUS Status;
-
- if (!Buffer) {
- return EFI_INVALID_PARAMETER;
- }
-
- Status = CpuIoCheckAddressRange (Width, Address, Count, Buffer, IA32_MAX_MEM_ADDRESS);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- //
- // Do nothing for Nt32 version
- //
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-CpuMemoryServiceWrite (
- IN EFI_CPU_IO_PROTOCOL *This,
- IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- IN OUT VOID *Buffer
- )
-/*++
-
-Routine Description:
-
- Perform the Memory Access Read service for the CPU I/O Protocol
-
-Arguments:
-
- Pointer to an instance of the CPU I/O Protocol
- Width of the Memory Access
- Address of the Memory access
- Count of the number of accesses to perform
- Pointer to the buffer to read or write from memory
-
-Returns:
-
- Status
-
- EFI_SUCCESS - The data was read from or written to the EFI System.
- EFI_INVALID_PARAMETER - Width is invalid for this EFI System.
- EFI_INVALID_PARAMETER - Buffer is NULL.
- EFI_UNSUPPORTED - The Buffer is not aligned for the given Width.
- EFI_UNSUPPORTED - The address range specified by Address, Width, and
- Count is not valid for this EFI System.
-
---*/
-// TODO: This - add argument and description to function comment
-{
- EFI_STATUS Status;
-
- if (!Buffer) {
- return EFI_INVALID_PARAMETER;
- }
-
- Status = CpuIoCheckAddressRange (Width, Address, Count, Buffer, IA32_MAX_MEM_ADDRESS);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- //
- // Do nothing for Nt32 version
- //
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-CpuIoServiceRead (
- IN EFI_CPU_IO_PROTOCOL *This,
- IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
- IN UINT64 UserAddress,
- IN UINTN Count,
- IN OUT VOID *UserBuffer
- )
-/*++
-
-Routine Description:
-
- This is the service that implements the I/O read
-
-Arguments:
-
- Pointer to an instance of the CPU I/O Protocol
- Width of the Memory Access
- Address of the I/O access
- Count of the number of accesses to perform
- Pointer to the buffer to read or write from I/O space
-
-Returns:
-
- Status
- EFI_SUCCESS - The data was read from or written to the EFI System.
- EFI_INVALID_PARAMETER - Width is invalid for this EFI System.
- EFI_INVALID_PARAMETER - Buffer is NULL.
- EFI_UNSUPPORTED - The Buffer is not aligned for the given Width.
- EFI_UNSUPPORTED - The address range specified by Address, Width, and
- Count is not valid for this EFI System.
---*/
-// TODO: This - add argument and description to function comment
-// TODO: UserAddress - add argument and description to function comment
-// TODO: UserBuffer - add argument and description to function comment
-{
- UINTN Address;
- EFI_STATUS Status;
-
- if (!UserBuffer) {
- return EFI_INVALID_PARAMETER;
- }
-
- Address = (UINTN) UserAddress;
-
- if (Width >= EfiCpuIoWidthMaximum) {
- return EFI_INVALID_PARAMETER;
- }
-
- Status = CpuIoCheckAddressRange (Width, Address, Count, UserBuffer, IA32_MAX_IO_ADDRESS);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- //
- // Do nothing for Nt32 version
- //
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-CpuIoServiceWrite (
- IN EFI_CPU_IO_PROTOCOL *This,
- IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
- IN UINT64 UserAddress,
- IN UINTN Count,
- IN OUT VOID *UserBuffer
- )
-/*++
-
-Routine Description:
-
-
- This is the service that implements the I/O Write
-
-Arguments:
-
- Pointer to an instance of the CPU I/O Protocol
- Width of the Memory Access
- Address of the I/O access
- Count of the number of accesses to perform
- Pointer to the buffer to read or write from I/O space
-
-Returns:
-
- Status
-
- Status
- EFI_SUCCESS - The data was read from or written to the EFI System.
- EFI_INVALID_PARAMETER - Width is invalid for this EFI System.
- EFI_INVALID_PARAMETER - Buffer is NULL.
- EFI_UNSUPPORTED - The Buffer is not aligned for the given Width.
- EFI_UNSUPPORTED - The address range specified by Address, Width, and
- Count is not valid for this EFI System.
-
---*/
-// TODO: This - add argument and description to function comment
-// TODO: UserAddress - add argument and description to function comment
-// TODO: UserBuffer - add argument and description to function comment
-{
- UINTN Address;
- EFI_STATUS Status;
-
- if (!UserBuffer) {
- return EFI_INVALID_PARAMETER;
- }
-
- Address = (UINTN) UserAddress;
-
- if (Width >= EfiCpuIoWidthMaximum) {
- return EFI_INVALID_PARAMETER;
- }
-
- Status = CpuIoCheckAddressRange (Width, Address, Count, UserBuffer, IA32_MAX_IO_ADDRESS);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- //
- // Do nothing for Nt32 version
- //
- return EFI_SUCCESS;
-}
-
-
-EFI_STATUS
-CpuIoCheckAddressRange (
- IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- IN VOID *Buffer,
- IN UINT64 Limit
- )
-/*++
-
-Routine Description:
-
- TODO: Add function description
-
-Arguments:
-
- Width - TODO: add argument description
- Address - TODO: add argument description
- Count - TODO: add argument description
- Buffer - TODO: add argument description
- Limit - TODO: add argument description
-
-Returns:
-
- EFI_UNSUPPORTED - TODO: Add description for return value
- EFI_UNSUPPORTED - TODO: Add description for return value
- EFI_UNSUPPORTED - TODO: Add description for return value
- EFI_SUCCESS - TODO: Add description for return value
-
---*/
-{
- UINTN AlignMask;
-
- if (Address > Limit) {
- return EFI_UNSUPPORTED;
- }
-
- //
- // For FiFo type, the target address won't increase during the access, so treat count as 1
- //
- if (Width >= EfiCpuIoWidthFifoUint8 && Width <= EfiCpuIoWidthFifoUint64) {
- Count = 1;
- }
-
- Width = Width & 0x03;
- if (Address - 1 + (1 << Width) * Count > Limit) {
- return EFI_UNSUPPORTED;
- }
-
- AlignMask = (1 << Width) - 1;
- if ((UINTN) Buffer & AlignMask) {
- return EFI_UNSUPPORTED;
- }
-
- return EFI_SUCCESS;
-}
-
-
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