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Added some functions header. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5409 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff 2008-07-04 07:58:57 +00:00
parent 288a3c98c7
commit 9359e53fcb
2 changed files with 341 additions and 151 deletions
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317
MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatform.c
View File

@ -1,7 +1,8 @@
/** @file /** @file
Console Platfrom DXE Driver, install Console protocols. Console Platfrom DXE Driver, install Console Device Guids and update Console
Environment Variables.
Copyright (c) 2006 - 2007, Intel Corporation. <BR> Copyright (c) 2006 - 2008, Intel Corporation. <BR>
All rights reserved. This program and the accompanying materials All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License 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 which accompanies this distribution. The full text of the license may be found at
@ -80,6 +81,18 @@ InitializeConPlatform(
} }
/**
Test to see if EFI Text In Protocol could be supported on the ControllerHandle.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to test.
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver supports this device
@retval other This driver does not support this device
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConPlatformTextInDriverBindingSupported ( ConPlatformTextInDriverBindingSupported (
@ -87,19 +100,6 @@ ConPlatformTextInDriverBindingSupported (
IN EFI_HANDLE ControllerHandle, IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
) )
/*++
Routine Description:
Supported
Arguments:
(Standard DriverBinding Protocol Supported() function)
Returns:
None
--*/
{ {
return ConPlatformDriverBindingSupported ( return ConPlatformDriverBindingSupported (
This, This,
@ -109,6 +109,19 @@ Returns:
); );
} }
/**
Test to see if EFI Text Out Protocol could be supported on the ControllerHandle.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to test.
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver supports this device
@retval other This driver does not support this device
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConPlatformTextOutDriverBindingSupported ( ConPlatformTextOutDriverBindingSupported (
@ -116,19 +129,6 @@ ConPlatformTextOutDriverBindingSupported (
IN EFI_HANDLE ControllerHandle, IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
) )
/*++
Routine Description:
Supported
Arguments:
(Standard DriverBinding Protocol Supported() function)
Returns:
None
--*/
{ {
return ConPlatformDriverBindingSupported ( return ConPlatformDriverBindingSupported (
This, This,
@ -138,6 +138,20 @@ Returns:
); );
} }
/**
Test to see if specific Protocol could be supported on the ControllerHandle.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to test.
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@param ProtocolGuid The specfic protocol.
@retval EFI_SUCCESS This driver supports this device
@retval other This driver does not support this device
**/
EFI_STATUS EFI_STATUS
ConPlatformDriverBindingSupported ( ConPlatformDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This, IN EFI_DRIVER_BINDING_PROTOCOL *This,
@ -145,19 +159,6 @@ ConPlatformDriverBindingSupported (
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath, IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath,
IN EFI_GUID *ProtocolGuid IN EFI_GUID *ProtocolGuid
) )
/*++
Routine Description:
Supported
Arguments:
(Standard DriverBinding Protocol Supported() function)
Returns:
None
--*/
{ {
EFI_STATUS Status; EFI_STATUS Status;
VOID *Interface; VOID *Interface;
@ -178,7 +179,7 @@ Returns:
return Status; return Status;
} }
// //
// Test to see if this device supports the Simple Text Output Protocol // Test to see if this device supports the specific Protocol
// //
Status = gBS->OpenProtocol ( Status = gBS->OpenProtocol (
ControllerHandle, ControllerHandle,
@ -202,6 +203,23 @@ Returns:
return EFI_SUCCESS; return EFI_SUCCESS;
} }
/**
Start this driver on ControllerHandle by opening Simple Text In protocol,
reading Device Path, and installing Console Devcice In GUID on ControllerHandle.
If this devcie is not one hot-plug devce, append its device path into the
console environment variables ConInDev.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to bind driver to
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver is added to ControllerHandle
@retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle
@retval other This driver does not support this device
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConPlatformTextInDriverBindingStart ( ConPlatformTextInDriverBindingStart (
@ -209,18 +227,6 @@ ConPlatformTextInDriverBindingStart (
IN EFI_HANDLE ControllerHandle, IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
) )
/*++
Routine Description:
Arguments:
(Standard DriverBinding Protocol Start() function)
Returns:
--*/
{ {
EFI_STATUS Status; EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *DevicePath; EFI_DEVICE_PATH_PROTOCOL *DevicePath;
@ -307,6 +313,24 @@ Returns:
return EFI_SUCCESS; return EFI_SUCCESS;
} }
/**
Start this driver on ControllerHandle by opening Simple Text Out protocol,
reading Device Path, and installing Console Devcice Out GUID, Standard Error
Device GUID on ControllerHandle.
If this devcie is not one hot-plug devce, append its device path into the
console environment variables ConOutDev, StdErrDev.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to bind driver to
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver is added to ControllerHandle
@retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle
@retval other This driver does not support this device
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConPlatformTextOutDriverBindingStart ( ConPlatformTextOutDriverBindingStart (
@ -314,18 +338,6 @@ ConPlatformTextOutDriverBindingStart (
IN EFI_HANDLE ControllerHandle, IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
) )
/*++
Routine Description:
Arguments:
(Standard DriverBinding Protocol Start() function)
Returns:
--*/
{ {
EFI_STATUS Status; EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *DevicePath; EFI_DEVICE_PATH_PROTOCOL *DevicePath;
@ -444,6 +456,20 @@ Returns:
return EFI_SUCCESS; return EFI_SUCCESS;
} }
/**
Stop this driver on ControllerHandle by removing Console Devcice In GUID
and closing the Simple Text In protocol on ControllerHandle.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to stop driver on
@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
children is zero stop the entire bus driver.
@param ChildHandleBuffer List of Child Handles to Stop.
@retval EFI_SUCCESS This driver is removed ControllerHandle
@retval other This driver was not removed from this device
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConPlatformTextInDriverBindingStop ( ConPlatformTextInDriverBindingStop (
@ -452,18 +478,6 @@ ConPlatformTextInDriverBindingStop (
IN UINTN NumberOfChildren, IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer IN EFI_HANDLE *ChildHandleBuffer
) )
/*++
Routine Description:
Arguments:
(Standard DriverBinding Protocol Stop() function)
Returns:
None
--*/
{ {
EFI_STATUS Status; EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *DevicePath; EFI_DEVICE_PATH_PROTOCOL *DevicePath;
@ -517,6 +531,21 @@ Returns:
return EFI_SUCCESS; return EFI_SUCCESS;
} }
/**
Stop this driver on ControllerHandle by removing Console Devcice Out GUID
and closing the Simple Text Out protocol on ControllerHandle.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to stop driver on
@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
children is zero stop the entire bus driver.
@param ChildHandleBuffer List of Child Handles to Stop.
@retval EFI_SUCCESS This driver is removed ControllerHandle
@retval other This driver was not removed from this device
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConPlatformTextOutDriverBindingStop ( ConPlatformTextOutDriverBindingStop (
@ -525,18 +554,6 @@ ConPlatformTextOutDriverBindingStop (
IN UINTN NumberOfChildren, IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer IN EFI_HANDLE *ChildHandleBuffer
) )
/*++
Routine Description:
Arguments:
(Standard DriverBinding Protocol Stop() function)
Returns:
None
--*/
{ {
EFI_STATUS Status; EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *DevicePath; EFI_DEVICE_PATH_PROTOCOL *DevicePath;
@ -602,6 +619,16 @@ Returns:
} }
/**
Unstall the specific protocol.
@param This Protocol instance pointer.
@param Handle Handle of device to unstall protocol on.
@param ProtocolGuid The specific protocol need to be uninstalled.
@return None.
**/
VOID VOID
ConPlatformUnInstallProtocol ( ConPlatformUnInstallProtocol (
IN EFI_DRIVER_BINDING_PROTOCOL *This, IN EFI_DRIVER_BINDING_PROTOCOL *This,
@ -632,26 +659,22 @@ ConPlatformUnInstallProtocol (
return ; return ;
} }
/**
Read the EFI variable (Name) and return a dynamically allocated
buffer, and the size of the buffer. On failure return NULL.
@param Name String part of EFI variable name
@return Dynamically allocated memory that contains a copy of the EFI variable.
Caller is repsoncible freeing the buffer.
NULL - Variable was not read
**/
VOID * VOID *
ConPlatformGetVariable ( ConPlatformGetVariable (
IN CHAR16 *Name IN CHAR16 *Name
) )
/*++
Routine Description:
Read the EFI variable (Name) and return a dynamically allocated
buffer, and the size of the buffer. On failure return NULL.
Arguments:
Name - String part of EFI variable name
Returns:
Dynamically allocated memory that contains a copy of the EFI variable.
Caller is repsoncible freeing the buffer.
NULL - Variable was not read
--*/
{ {
EFI_STATUS Status; EFI_STATUS Status;
VOID *Buffer; VOID *Buffer;
@ -698,6 +721,24 @@ Returns:
return Buffer; return Buffer;
} }
/**
Function compares a device path data structure to that of all the nodes of a
second device path instance.
@param Multi A pointer to a multi-instance device path data structure.
@param Single A pointer to a single-instance device path data structure.
@param NewDevicePath If Delete is TRUE, this parameter must not be null, and it
points to the remaining device path data structure.
(remaining device path = Multi - Single.)
@param Delete If TRUE, means removing Single from Multi.
If FALSE, the routine just check whether Single matches
with any instance in Multi.
@return The function returns EFI_SUCCESS if the Single is contained within Multi.
Otherwise, EFI_NOT_FOUND is returned.
**/
EFI_STATUS EFI_STATUS
ConPlatformMatchDevicePaths ( ConPlatformMatchDevicePaths (
IN EFI_DEVICE_PATH_PROTOCOL *Multi, IN EFI_DEVICE_PATH_PROTOCOL *Multi,
@ -705,31 +746,6 @@ ConPlatformMatchDevicePaths (
IN EFI_DEVICE_PATH_PROTOCOL **NewDevicePath OPTIONAL, IN EFI_DEVICE_PATH_PROTOCOL **NewDevicePath OPTIONAL,
IN BOOLEAN Delete IN BOOLEAN Delete
) )
/*++
Routine Description:
Function compares a device path data structure to that of all the nodes of a
second device path instance.
Arguments:
Multi - A pointer to a multi-instance device path data structure.
Single - A pointer to a single-instance device path data structure.
NewDevicePath - If Delete is TRUE, this parameter must not be null, and it
points to the remaining device path data structure.
(remaining device path = Multi - Single.)
Delete - If TRUE, means removing Single from Multi.
If FALSE, the routine just check whether Single matches
with any instance in Multi.
Returns:
The function returns EFI_SUCCESS if the Single is contained within Multi.
Otherwise, EFI_NOT_FOUND is returned.
--*/
{ {
EFI_DEVICE_PATH_PROTOCOL *DevicePath; EFI_DEVICE_PATH_PROTOCOL *DevicePath;
EFI_DEVICE_PATH_PROTOCOL *TempDevicePath; EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;
@ -739,7 +755,7 @@ Returns:
// //
// The passed in DevicePath should not be NULL // The passed in DevicePath should not be NULL
// //
if ((!Multi) || (!Single)) { if ((Multi == NULL) || (Single == NULL)) {
return EFI_NOT_FOUND; return EFI_NOT_FOUND;
} }
// //
@ -753,7 +769,7 @@ Returns:
// //
// search for the match of 'Single' in 'Multi' // search for the match of 'Single' in 'Multi'
// //
while (DevicePathInst) { while (DevicePathInst != NULL) {
if (CompareMem (Single, DevicePathInst, Size) == 0) { if (CompareMem (Single, DevicePathInst, Size) == 0) {
if (!Delete) { if (!Delete) {
FreePool (DevicePathInst); FreePool (DevicePathInst);
@ -780,24 +796,25 @@ Returns:
return EFI_NOT_FOUND; return EFI_NOT_FOUND;
} }
/**
Update console devicein console environment variables.
@param VariableName Console environment variables, ConOutDev, ConInDev
StdErrDev, ConIn or ConOut.
@param DevicePath Console devcie's device path.
@param Operation Variable operations, such as APPEND or DELETE.
@retval EFI_SUCCESS Variable operates successfully.
@retval EFI_OUT_OF_RESOURCES If variable cannot be appended.
@retval other Variable updating failed.
**/
EFI_STATUS EFI_STATUS
ConPlatformUpdateDeviceVariable ( ConPlatformUpdateDeviceVariable (
IN CHAR16 *VariableName, IN CHAR16 *VariableName,
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath, IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
IN CONPLATFORM_VAR_OPERATION Operation IN CONPLATFORM_VAR_OPERATION Operation
) )
/*++
Routine Description:
Arguments:
Returns:
None
--*/
{ {
EFI_STATUS Status; EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *VariableDevicePath; EFI_DEVICE_PATH_PROTOCOL *VariableDevicePath;
@ -881,6 +898,16 @@ Returns:
return Status; return Status;
} }
/**
Check if the device is one hot-plug supported.
@param DriverBindingHandle Protocol instance pointer.
@param ControllerHandle Handle of device to check.
@retval TRUE The devcie is a hot-plug device
@retval FALSE The devcie is not a hot-plug device.
**/
BOOLEAN BOOLEAN
IsHotPlugDevice ( IsHotPlugDevice (
EFI_HANDLE DriverBindingHandle, EFI_HANDLE DriverBindingHandle,

169
MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatform.h
View File

@ -1,7 +1,7 @@
/** @file /** @file
Header file for Console Platfrom DXE Driver. Header file for Console Platfrom DXE Driver.
Copyright (c) 2006 - 2007, Intel Corporation. <BR> Copyright (c) 2006 - 2008, Intel Corporation. <BR>
All rights reserved. This program and the accompanying materials All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License 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 which accompanies this distribution. The full text of the license may be found at
@ -12,8 +12,8 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/ **/
#ifndef CON_MANAGE_H_ #ifndef _CON_MANAGE_H_
#define CON_MANAGE_H_ #define _CON_MANAGE_H_
#include <Uefi.h> #include <Uefi.h>
#include <Protocol/SimpleTextOut.h> #include <Protocol/SimpleTextOut.h>
@ -51,6 +51,19 @@ typedef enum {
DELETE DELETE
} CONPLATFORM_VAR_OPERATION; } CONPLATFORM_VAR_OPERATION;
/**
Test to see if specific Protocol could be supported on the ControllerHandle.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to test.
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@param ProtocolGuid The specfic protocol.
@retval EFI_SUCCESS This driver supports this device
@retval other This driver does not support this device
**/
EFI_STATUS EFI_STATUS
ConPlatformDriverBindingSupported ( ConPlatformDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This, IN EFI_DRIVER_BINDING_PROTOCOL *This,
@ -59,6 +72,18 @@ ConPlatformDriverBindingSupported (
IN EFI_GUID *ProtocolGuid IN EFI_GUID *ProtocolGuid
); );
/**
Test to see if EFI Text In Protocol could be supported on the ControllerHandle.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to test.
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver supports this device
@retval other This driver does not support this device
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConPlatformTextInDriverBindingSupported ( ConPlatformTextInDriverBindingSupported (
@ -67,6 +92,18 @@ ConPlatformTextInDriverBindingSupported (
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
); );
/**
Test to see if EFI Text Out Protocol could be supported on the ControllerHandle.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to test.
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver supports this device
@retval other This driver does not support this device
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConPlatformTextOutDriverBindingSupported ( ConPlatformTextOutDriverBindingSupported (
@ -75,6 +112,23 @@ ConPlatformTextOutDriverBindingSupported (
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
); );
/**
Start this driver on ControllerHandle by opening Simple Text In protocol,
reading Device Path, and installing Console Devcice In GUID on ControllerHandle.
If this devcie is not one hot-plug devce, append its device path into the
console environment variables ConInDev.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to bind driver to
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver is added to ControllerHandle
@retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle
@retval other This driver does not support this device
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConPlatformTextInDriverBindingStart ( ConPlatformTextInDriverBindingStart (
@ -83,6 +137,24 @@ ConPlatformTextInDriverBindingStart (
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
); );
/**
Start this driver on ControllerHandle by opening Simple Text Out protocol,
reading Device Path, and installing Console Devcice Out GUID, Standard Error
Device GUID on ControllerHandle.
If this devcie is not one hot-plug devce, append its device path into the
console environment variables ConOutDev, StdErrDev.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to bind driver to
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver is added to ControllerHandle
@retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle
@retval other This driver does not support this device
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConPlatformTextOutDriverBindingStart ( ConPlatformTextOutDriverBindingStart (
@ -91,6 +163,20 @@ ConPlatformTextOutDriverBindingStart (
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
); );
/**
Stop this driver on ControllerHandle by removing Console Devcice In GUID
and closing the Simple Text In protocol on ControllerHandle.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to stop driver on
@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
children is zero stop the entire bus driver.
@param ChildHandleBuffer List of Child Handles to Stop.
@retval EFI_SUCCESS This driver is removed ControllerHandle
@retval other This driver was not removed from this device
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConPlatformTextInDriverBindingStop ( ConPlatformTextInDriverBindingStop (
@ -100,6 +186,20 @@ ConPlatformTextInDriverBindingStop (
IN EFI_HANDLE *ChildHandleBuffer IN EFI_HANDLE *ChildHandleBuffer
); );
/**
Stop this driver on ControllerHandle by removing Console Devcice Out GUID
and closing the Simple Text Out protocol on ControllerHandle.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to stop driver on
@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
children is zero stop the entire bus driver.
@param ChildHandleBuffer List of Child Handles to Stop.
@retval EFI_SUCCESS This driver is removed ControllerHandle
@retval other This driver was not removed from this device
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConPlatformTextOutDriverBindingStop ( ConPlatformTextOutDriverBindingStop (
@ -109,6 +209,16 @@ ConPlatformTextOutDriverBindingStop (
IN EFI_HANDLE *ChildHandleBuffer IN EFI_HANDLE *ChildHandleBuffer
); );
/**
Unstall the specific protocol.
@param This Protocol instance pointer.
@param Handle Handle of device to unstall protocol on.
@param ProtocolGuid The specific protocol need to be uninstalled.
@return None.
**/
VOID VOID
ConPlatformUnInstallProtocol ( ConPlatformUnInstallProtocol (
IN EFI_DRIVER_BINDING_PROTOCOL *This, IN EFI_DRIVER_BINDING_PROTOCOL *This,
@ -116,11 +226,41 @@ ConPlatformUnInstallProtocol (
IN EFI_GUID *ProtocolGuid IN EFI_GUID *ProtocolGuid
); );
/**
Read the EFI variable (Name) and return a dynamically allocated
buffer, and the size of the buffer. On failure return NULL.
@param Name String part of EFI variable name
@return Dynamically allocated memory that contains a copy of the EFI variable.
Caller is repsoncible freeing the buffer.
NULL - Variable was not read
**/
VOID * VOID *
ConPlatformGetVariable ( ConPlatformGetVariable (
IN CHAR16 *Name IN CHAR16 *Name
); );
/**
Function compares a device path data structure to that of all the nodes of a
second device path instance.
@param Multi A pointer to a multi-instance device path data structure.
@param Single A pointer to a single-instance device path data structure.
@param NewDevicePath If Delete is TRUE, this parameter must not be null, and it
points to the remaining device path data structure.
(remaining device path = Multi - Single.)
@param Delete If TRUE, means removing Single from Multi.
If FALSE, the routine just check whether Single matches
with any instance in Multi.
@return The function returns EFI_SUCCESS if the Single is contained within Multi.
Otherwise, EFI_NOT_FOUND is returned.
**/
EFI_STATUS EFI_STATUS
ConPlatformMatchDevicePaths ( ConPlatformMatchDevicePaths (
IN EFI_DEVICE_PATH_PROTOCOL *Multi, IN EFI_DEVICE_PATH_PROTOCOL *Multi,
@ -129,6 +269,19 @@ ConPlatformMatchDevicePaths (
IN BOOLEAN Delete IN BOOLEAN Delete
); );
/**
Update console devicein console environment variables.
@param VariableName Console environment variables, ConOutDev, ConInDev
StdErrDev, ConIn or ConOut.
@param DevicePath Console devcie's device path.
@param Operation Variable operations, such as APPEND or DELETE.
@retval EFI_SUCCESS Variable operates successfully.
@retval EFI_OUT_OF_RESOURCES If variable cannot be appended.
@retval other Variable updating failed.
**/
EFI_STATUS EFI_STATUS
ConPlatformUpdateDeviceVariable ( ConPlatformUpdateDeviceVariable (
IN CHAR16 *VariableName, IN CHAR16 *VariableName,
@ -136,6 +289,16 @@ ConPlatformUpdateDeviceVariable (
IN CONPLATFORM_VAR_OPERATION Operation IN CONPLATFORM_VAR_OPERATION Operation
); );
/**
Check if the device is one hot-plug supported.
@param DriverBindingHandle Protocol instance pointer.
@param ControllerHandle Handle of device to check.
@retval TRUE The devcie is a hot-plug device
@retval FALSE The devcie is not a hot-plug device.
**/
BOOLEAN BOOLEAN
IsHotPlugDevice ( IsHotPlugDevice (
EFI_HANDLE DriverBindingHandle, EFI_HANDLE DriverBindingHandle,