tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

IntelFrameworkModulePkg: Modify CpuIoDxe to support new IoLib library 

The IO_PROTOCOL supports Fifo types by invoking the Fifo routines in the
new BaseIoLibIntrinsic (IoLib class) library.

Cc: Jeff Fan <jeff.fan@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Leo Duran  <leo.duran@amd.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
This commit is contained in:
Leo Duran 2017-01-14 04:09:54 +08:00 committed by Liming Gao
parent ff5d3cc25f
commit afb84b5f92
1 changed files with 52 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

52
IntelFrameworkModulePkg/Universal/CpuIoDxe/CpuIo.c
View File

@ -2,6 +2,8 @@
Uses the services of the I/O Library to produce the CPU I/O Protocol
Copyright (c) 2004 - 2012, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2017, AMD Incorporated. 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
@ -410,6 +412,31 @@ CpuIoServiceRead (
InStride = mInStride[Width];
OutStride = mOutStride[Width];
OperationWidth = (EFI_CPU_IO_PROTOCOL_WIDTH) (Width & 0x03);
//
// Fifo operations supported for (mInStride[Width] == 0)
//
if (InStride == 0) {
switch (OperationWidth) {
case EfiCpuIoWidthUint8:
IoReadFifo8 ((UINTN)Address, Count, Buffer);
return EFI_SUCCESS;
case EfiCpuIoWidthUint16:
IoReadFifo16 ((UINTN)Address, Count, Buffer);
return EFI_SUCCESS;
case EfiCpuIoWidthUint32:
IoReadFifo32 ((UINTN)Address, Count, Buffer);
return EFI_SUCCESS;
default:
//
// The CpuIoCheckParameter call above will ensure that this
// path is not taken.
//
ASSERT (FALSE);
break;
}
}
for (Uint8Buffer = Buffer; Count > 0; Address += InStride, Uint8Buffer += OutStride, Count--) {
if (OperationWidth == EfiCpuIoWidthUint8) {
*Uint8Buffer = IoRead8 ((UINTN)Address);
@ -492,6 +519,31 @@ CpuIoServiceWrite (
InStride = mInStride[Width];
OutStride = mOutStride[Width];
OperationWidth = (EFI_CPU_IO_PROTOCOL_WIDTH) (Width & 0x03);
//
// Fifo operations supported for (mInStride[Width] == 0)
//
if (InStride == 0) {
switch (OperationWidth) {
case EfiCpuIoWidthUint8:
IoWriteFifo8 ((UINTN)Address, Count, Buffer);
return EFI_SUCCESS;
case EfiCpuIoWidthUint16:
IoWriteFifo16 ((UINTN)Address, Count, Buffer);
return EFI_SUCCESS;
case EfiCpuIoWidthUint32:
IoWriteFifo32 ((UINTN)Address, Count, Buffer);
return EFI_SUCCESS;
default:
//
// The CpuIoCheckParameter call above will ensure that this
// path is not taken.
//
ASSERT (FALSE);
break;
}
}
for (Uint8Buffer = (UINT8 *)Buffer; Count > 0; Address += InStride, Uint8Buffer += OutStride, Count--) {
if (OperationWidth == EfiCpuIoWidthUint8) {
IoWrite8 ((UINTN)Address, *Uint8Buffer);