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IntelFrameworkModulePkg/LegacyBios: Get SIO data in separate function 

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
This commit is contained in:
Ruiyu Ni 2016-06-12 14:45:53 +08:00
parent d6f38e374e
commit 26a7ece721
1 changed files with 57 additions and 33 deletions
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90
IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacySio.c
View File

@ -2,7 +2,7 @@
Collect Sio information from Native EFI Drivers. Collect Sio information from Native EFI Drivers.
Sio is floppy, parallel, serial, ... hardware Sio is floppy, parallel, serial, ... hardware
Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR> Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials This program and the accompanying materials
are licensed and made available under the terms and conditions are licensed and made available under the terms and conditions
@ -19,24 +19,22 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
/** /**
Collect EFI Info about legacy devices. Collect EFI Info about legacy devices through ISA IO interface.
@param Private Legacy BIOS Instance data @param SioPtr Pointer to SIO data.
@retval EFI_SUCCESS It should always work. @retval EFI_SUCCESS It should always work.
**/ **/
EFI_STATUS EFI_STATUS
LegacyBiosBuildSioData ( LegacyBiosBuildSioDataFromIsaIo (
IN LEGACY_BIOS_INSTANCE *Private IN DEVICE_PRODUCER_DATA_HEADER *SioPtr
) )
{ {
EFI_STATUS Status; EFI_STATUS Status;
DEVICE_PRODUCER_DATA_HEADER *SioPtr;
DEVICE_PRODUCER_SERIAL *Sio1Ptr; DEVICE_PRODUCER_SERIAL *Sio1Ptr;
DEVICE_PRODUCER_PARALLEL *Sio2Ptr; DEVICE_PRODUCER_PARALLEL *Sio2Ptr;
DEVICE_PRODUCER_FLOPPY *Sio3Ptr; DEVICE_PRODUCER_FLOPPY *Sio3Ptr;
EFI_HANDLE IsaBusController;
UINTN HandleCount; UINTN HandleCount;
EFI_HANDLE *HandleBuffer; EFI_HANDLE *HandleBuffer;
UINTN Index; UINTN Index;
@ -51,34 +49,8 @@ LegacyBiosBuildSioData (
EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenInfoBuffer; EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenInfoBuffer;
EFI_BLOCK_IO_PROTOCOL *BlockIo; EFI_BLOCK_IO_PROTOCOL *BlockIo;
//
// Get the pointer to the SIO data structure
//
SioPtr = &Private->IntThunk->EfiToLegacy16BootTable.SioData;
//
// Zero the data in the SIO data structure
//
gBS->SetMem (SioPtr, sizeof (DEVICE_PRODUCER_DATA_HEADER), 0);
//
// Find the ISA Bus Controller used for legacy
//
Status = Private->LegacyBiosPlatform->GetPlatformHandle (
Private->LegacyBiosPlatform,
EfiGetPlatformIsaBusHandle,
0,
&HandleBuffer,
&HandleCount,
NULL
);
IsaBusController = HandleBuffer[0];
if (!EFI_ERROR (Status)) {
//
// Force ISA Bus Controller to produce all ISA devices
//
gBS->ConnectController (IsaBusController, NULL, NULL, TRUE);
}
// //
// Get the list of ISA controllers in the system // Get the list of ISA controllers in the system
// //
@ -229,6 +201,58 @@ LegacyBiosBuildSioData (
} }
FreePool (HandleBuffer); FreePool (HandleBuffer);
return EFI_SUCCESS;
}
/**
Collect EFI Info about legacy devices.
@param Private Legacy BIOS Instance data
@retval EFI_SUCCESS It should always work.
**/
EFI_STATUS
LegacyBiosBuildSioData (
IN LEGACY_BIOS_INSTANCE *Private
)
{
EFI_STATUS Status;
DEVICE_PRODUCER_DATA_HEADER *SioPtr;
EFI_HANDLE IsaBusController;
UINTN HandleCount;
EFI_HANDLE *HandleBuffer;
//
// Get the pointer to the SIO data structure
//
SioPtr = &Private->IntThunk->EfiToLegacy16BootTable.SioData;
//
// Zero the data in the SIO data structure
//
gBS->SetMem (SioPtr, sizeof (DEVICE_PRODUCER_DATA_HEADER), 0);
//
// Find the ISA Bus Controller used for legacy
//
Status = Private->LegacyBiosPlatform->GetPlatformHandle (
Private->LegacyBiosPlatform,
EfiGetPlatformIsaBusHandle,
0,
&HandleBuffer,
&HandleCount,
NULL
);
IsaBusController = HandleBuffer[0];
if (!EFI_ERROR (Status)) {
//
// Force ISA Bus Controller to produce all ISA devices
//
gBS->ConnectController (IsaBusController, NULL, NULL, TRUE);
}
LegacyBiosBuildSioDataFromIsaIo (SioPtr);
return EFI_SUCCESS; return EFI_SUCCESS;
} }