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

MdeModulePkg: Add IsaBusDxe driver 

This driver follows UEFI driver model and layers on ISA HC protocol defined in PI spec 1.2.1.
It consumes the ISA Host Controller protocol produced by the ISA Host Controller and installs the ISA Host Controller Service Binding protocol on the ISA Host Controller's handle.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17504 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Ruiyu Ni 2015-05-26 02:48:42 +00:00 committed by niruiyu
parent 42c9d9f8a3
commit 9834b6c14e
6 changed files with 898 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

180
Bus/Isa/IsaBusDxe/ComponentName.c Normal file
View File

@ -0,0 +1,180 @@
/** @file
UEFI Component Name(2) protocol implementation for IsaBusDxe driver.
Copyright (c) 2015, Intel Corporation. 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
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 "ComponentName.h"
#include <Library/UefiLib.h>
//
// Driver name table
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mIsaBusDriverNameTable[] = {
{ "eng;en", L"PI ISA BUS Driver" },
{ NULL , NULL }
};
//
// EFI Component Name Protocol
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL gIsaBusComponentName = {
IsaBusComponentNameGetDriverName,
IsaBusComponentNameGetControllerName,
"eng"
};
//
// EFI Component Name 2 Protocol
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gIsaBusComponentName2 = {
(EFI_COMPONENT_NAME2_GET_DRIVER_NAME) IsaBusComponentNameGetDriverName,
(EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) IsaBusComponentNameGetControllerName,
"en"
};
/**
Retrieves a Unicode string that is the user readable name of the driver.
This function retrieves the user readable name of a driver in the form of a
Unicode string. If the driver specified by This has a user readable name in
the language specified by Language, then a pointer to the driver name is
returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
by This does not support the language specified by Language,
then EFI_UNSUPPORTED is returned.
@param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param Language[in] A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified
in RFC 4646 or ISO 639-2 language code format.
@param DriverName[out] A pointer to the Unicode string to return.
This Unicode string is the name of the
driver specified by This in the language
specified by Language.
@retval EFI_SUCCESS The Unicode string for the Driver specified by
This and the language specified by Language was
returned in DriverName.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER DriverName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
IsaBusComponentNameGetDriverName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN CHAR8 *Language,
OUT CHAR16 **DriverName
)
{
return LookupUnicodeString2 (
Language,
This->SupportedLanguages,
mIsaBusDriverNameTable,
DriverName,
(BOOLEAN)(This == &gIsaBusComponentName)
);
}
/**
Retrieves a Unicode string that is the user readable name of the controller
that is being managed by a driver.
This function retrieves the user readable name of the controller specified by
ControllerHandle and ChildHandle in the form of a Unicode string. If the
driver specified by This has a user readable name in the language specified by
Language, then a pointer to the controller name is returned in ControllerName,
and EFI_SUCCESS is returned. If the driver specified by This is not currently
managing the controller specified by ControllerHandle and ChildHandle,
then EFI_UNSUPPORTED is returned. If the driver specified by This does not
support the language specified by Language, then EFI_UNSUPPORTED is returned.
@param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param ControllerHandle[in] The handle of a controller that the driver
specified by This is managing. This handle
specifies the controller whose name is to be
returned.
@param ChildHandle[in] The handle of the child controller to retrieve
the name of. This is an optional parameter that
may be NULL. It will be NULL for device
drivers. It will also be NULL for a bus drivers
that wish to retrieve the name of the bus
controller. It will not be NULL for a bus
driver that wishes to retrieve the name of a
child controller.
@param Language[in] A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified in
RFC 4646 or ISO 639-2 language code format.
@param ControllerName[out] A pointer to the Unicode string to return.
This Unicode string is the name of the
controller specified by ControllerHandle and
ChildHandle in the language specified by
Language from the point of view of the driver
specified by This.
@retval EFI_SUCCESS The Unicode string for the user readable name in
the language specified by Language for the
driver specified by This was returned in
DriverName.
@retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
EFI_HANDLE.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER ControllerName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This is not currently
managing the controller specified by
ControllerHandle and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
IsaBusComponentNameGetControllerName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN CHAR8 *Language,
OUT CHAR16 **ControllerName
)
{
return EFI_UNSUPPORTED;
}

151
Bus/Isa/IsaBusDxe/ComponentName.h Normal file
View File

@ -0,0 +1,151 @@
/** @file
UEFI Component Name(2) protocol implementation for IsaBusDxe driver.
Copyright (c) 2015, Intel Corporation. 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
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.
**/
#ifndef _ISA_BUS_COMPONENT_NAME_H_
#define _ISA_BUS_COMPONENT_NAME_H_
#include <Uefi.h>
#include <Protocol/ComponentName.h>
#include <Protocol/ComponentName2.h>
extern EFI_COMPONENT_NAME_PROTOCOL gIsaBusComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gIsaBusComponentName2;
/**
Retrieves a Unicode string that is the user readable name of the driver.
This function retrieves the user readable name of a driver in the form of a
Unicode string. If the driver specified by This has a user readable name in
the language specified by Language, then a pointer to the driver name is
returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
by This does not support the language specified by Language,
then EFI_UNSUPPORTED is returned.
@param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param Language[in] A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified
in RFC 4646 or ISO 639-2 language code format.
@param DriverName[out] A pointer to the Unicode string to return.
This Unicode string is the name of the
driver specified by This in the language
specified by Language.
@retval EFI_SUCCESS The Unicode string for the Driver specified by
This and the language specified by Language was
returned in DriverName.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER DriverName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
IsaBusComponentNameGetDriverName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN CHAR8 *Language,
OUT CHAR16 **DriverName
);
/**
Retrieves a Unicode string that is the user readable name of the controller
that is being managed by a driver.
This function retrieves the user readable name of the controller specified by
ControllerHandle and ChildHandle in the form of a Unicode string. If the
driver specified by This has a user readable name in the language specified by
Language, then a pointer to the controller name is returned in ControllerName,
and EFI_SUCCESS is returned. If the driver specified by This is not currently
managing the controller specified by ControllerHandle and ChildHandle,
then EFI_UNSUPPORTED is returned. If the driver specified by This does not
support the language specified by Language, then EFI_UNSUPPORTED is returned.
@param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param ControllerHandle[in] The handle of a controller that the driver
specified by This is managing. This handle
specifies the controller whose name is to be
returned.
@param ChildHandle[in] The handle of the child controller to retrieve
the name of. This is an optional parameter that
may be NULL. It will be NULL for device
drivers. It will also be NULL for a bus drivers
that wish to retrieve the name of the bus
controller. It will not be NULL for a bus
driver that wishes to retrieve the name of a
child controller.
@param Language[in] A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified in
RFC 4646 or ISO 639-2 language code format.
@param ControllerName[out] A pointer to the Unicode string to return.
This Unicode string is the name of the
controller specified by ControllerHandle and
ChildHandle in the language specified by
Language from the point of view of the driver
specified by This.
@retval EFI_SUCCESS The Unicode string for the user readable name in
the language specified by Language for the
driver specified by This was returned in
DriverName.
@retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
EFI_HANDLE.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER ControllerName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This is not currently
managing the controller specified by
ControllerHandle and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
IsaBusComponentNameGetControllerName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN CHAR8 *Language,
OUT CHAR16 **ControllerName
);
#endif

461
Bus/Isa/IsaBusDxe/IsaBusDxe.c Normal file
View File

@ -0,0 +1,461 @@
/** @file
This file consumes the ISA Host Controller protocol produced by the ISA Host
Controller and installs the ISA Host Controller Service Binding protocol
on the ISA Host Controller's handle.
Copyright (c) 2015, Intel Corporation. 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
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 "IsaBusDxe.h"
#include "ComponentName.h"
/**
Tests to see if this driver supports a given controller. If a child device is provided,
it further tests to see if this driver supports creating a handle for the specified child device.
@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
@param[in] ControllerHandle The handle of the controller to test. This handle
must support a protocol interface that supplies
an I/O abstraction to the driver.
@param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
parameter is ignored by device drivers, and is optional for bus
drivers. For bus drivers, if this parameter is not NULL, then
the bus driver must determine if the bus controller specified
by ControllerHandle and the child controller specified
by RemainingDevicePath are both supported by this
bus driver.
@retval EFI_SUCCESS The device specified by ControllerHandle and
RemainingDevicePath is supported by the driver specified by This.
@retval EFI_ALREADY_STARTED The device specified by ControllerHandle and
RemainingDevicePath is already being managed by the driver
specified by This.
@retval EFI_ACCESS_DENIED The device specified by ControllerHandle and
RemainingDevicePath is already being managed by a different
driver or an application that requires exclusive access.
Currently not implemented.
@retval EFI_UNSUPPORTED The device specified by ControllerHandle and
RemainingDevicePath is not supported by the driver specified by This.
**/
EFI_STATUS
EFIAPI
IsaBusDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_STATUS Status;
VOID *Instance;
Status = gBS->OpenProtocol (
Controller,
&gEfiIsaHcProtocolGuid,
&Instance,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (!EFI_ERROR (Status)) {
gBS->CloseProtocol (
Controller,
&gEfiIsaHcProtocolGuid,
This->DriverBindingHandle,
Controller
);
}
if (EFI_ERROR (Status)) {
return Status;
}
Status = gBS->OpenProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
&Instance,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (!EFI_ERROR (Status)) {
gBS->CloseProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
This->DriverBindingHandle,
Controller
);
}
return Status;
}
ISA_BUS_CHILD_PRIVATE_DATA mIsaBusChildPrivateTemplate = {
ISA_BUS_CHILD_PRIVATE_DATA_SIGNATURE,
FALSE
};
/**
Creates a child handle and installs a protocol.
The CreateChild() function installs a protocol on ChildHandle.
If ChildHandle is a pointer to NULL, then a new handle is created and returned in ChildHandle.
If ChildHandle is not a pointer to NULL, then the protocol installs on the existing ChildHandle.
@param This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.
@param ChildHandle Pointer to the handle of the child to create. If it is NULL,
then a new handle is created. If it is a pointer to an existing UEFI handle,
then the protocol is added to the existing UEFI handle.
@retval EFI_SUCCES The protocol was added to ChildHandle.
@retval EFI_INVALID_PARAMETER ChildHandle is NULL.
@retval EFI_OUT_OF_RESOURCES There are not enough resources availabe to create
the child
@retval other The child handle was not created
**/
EFI_STATUS
EFIAPI
IsaBusCreateChild (
IN EFI_SERVICE_BINDING_PROTOCOL *This,
IN OUT EFI_HANDLE *ChildHandle
)
{
EFI_STATUS Status;
ISA_BUS_PRIVATE_DATA *Private;
EFI_ISA_HC_PROTOCOL *IsaHc;
ISA_BUS_CHILD_PRIVATE_DATA *Child;
Private = ISA_BUS_PRIVATE_DATA_FROM_THIS (This);
Child = AllocateCopyPool (sizeof (mIsaBusChildPrivateTemplate), &mIsaBusChildPrivateTemplate);
if (Child == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Status = gBS->InstallMultipleProtocolInterfaces (
ChildHandle,
&gEfiIsaHcProtocolGuid, Private->IsaHc,
&gEfiCallerIdGuid, Child,
NULL
);
if (EFI_ERROR (Status)) {
FreePool (Child);
return Status;
}
return gBS->OpenProtocol (
Private->IsaHcHandle,
&gEfiIsaHcProtocolGuid,
(VOID **) &IsaHc,
gIsaBusDriverBinding.DriverBindingHandle,
*ChildHandle,
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
);
}
/**
Destroys a child handle with a protocol installed on it.
The DestroyChild() function does the opposite of CreateChild(). It removes a protocol
that was installed by CreateChild() from ChildHandle. If the removed protocol is the
last protocol on ChildHandle, then ChildHandle is destroyed.
@param This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.
@param ChildHandle Handle of the child to destroy
@retval EFI_SUCCES The protocol was removed from ChildHandle.
@retval EFI_UNSUPPORTED ChildHandle does not support the protocol that is being removed.
@retval EFI_INVALID_PARAMETER Child handle is NULL.
@retval EFI_ACCESS_DENIED The protocol could not be removed from the ChildHandle
because its services are being used.
@retval other The child handle was not destroyed
**/
EFI_STATUS
EFIAPI
IsaBusDestroyChild (
IN EFI_SERVICE_BINDING_PROTOCOL *This,
IN EFI_HANDLE ChildHandle
)
{
EFI_STATUS Status;
ISA_BUS_PRIVATE_DATA *Private;
EFI_ISA_HC_PROTOCOL *IsaHc;
ISA_BUS_CHILD_PRIVATE_DATA *Child;
Private = ISA_BUS_PRIVATE_DATA_FROM_THIS (This);
Status = gBS->OpenProtocol (
ChildHandle,
&gEfiCallerIdGuid,
(VOID **) &Child,
gIsaBusDriverBinding.DriverBindingHandle,
ChildHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return Status;
}
ASSERT (Child->Signature == ISA_BUS_CHILD_PRIVATE_DATA_SIGNATURE);
if (Child->InDestroying) {
return EFI_SUCCESS;
}
Child->InDestroying = TRUE;
Status = gBS->CloseProtocol (
Private->IsaHcHandle,
&gEfiIsaHcProtocolGuid,
gIsaBusDriverBinding.DriverBindingHandle,
ChildHandle
);
ASSERT_EFI_ERROR (Status);
if (!EFI_ERROR (Status)) {
Status = gBS->UninstallMultipleProtocolInterfaces (
ChildHandle,
&gEfiIsaHcProtocolGuid, Private->IsaHc,
&gEfiCallerIdGuid, Child,
NULL
);
if (EFI_ERROR (Status)) {
gBS->OpenProtocol (
Private->IsaHcHandle,
&gEfiIsaHcProtocolGuid,
(VOID **) &IsaHc,
gIsaBusDriverBinding.DriverBindingHandle,
ChildHandle,
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
);
}
}
if (EFI_ERROR (Status)) {
Child->InDestroying = FALSE;
} else {
FreePool (Child);
}
return Status;
}
ISA_BUS_PRIVATE_DATA mIsaBusPrivateTemplate = {
ISA_BUS_PRIVATE_DATA_SIGNATURE,
{
IsaBusCreateChild,
IsaBusDestroyChild
}
};
/**
Starts a device controller or a bus controller.
@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
@param[in] ControllerHandle The handle of the controller to start. This handle
must support a protocol interface that supplies
an I/O abstraction to the driver.
@param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
parameter is ignored by device drivers, and is optional for bus
drivers. For a bus driver, if this parameter is NULL, then handles
for all the children of Controller are created by this driver.
If this parameter is not NULL and the first Device Path Node is
not the End of Device Path Node, then only the handle for the
child device specified by the first Device Path Node of
RemainingDevicePath is created by this driver.
If the first Device Path Node of RemainingDevicePath is
the End of Device Path Node, no child handle is created by this
driver.
@retval EFI_SUCCESS The device was started.
@retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented.
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
@retval Others The driver failded to start the device.
**/
EFI_STATUS
EFIAPI
IsaBusDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
ISA_BUS_PRIVATE_DATA *Private;
Status = gBS->OpenProtocol (
Controller,
&gEfiIsaHcProtocolGuid,
(VOID **) &mIsaBusPrivateTemplate.IsaHc,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = gBS->OpenProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
(VOID **) &DevicePath,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
gBS->CloseProtocol (
Controller,
&gEfiIsaHcProtocolGuid,
This->DriverBindingHandle,
Controller
);
return Status;
}
Private = AllocateCopyPool (sizeof (mIsaBusPrivateTemplate), &mIsaBusPrivateTemplate);
ASSERT (Private != NULL);
Private->IsaHcHandle = Controller;
Status = gBS->InstallMultipleProtocolInterfaces (
&Controller,
&gEfiIsaHcServiceBindingProtocolGuid, &Private->ServiceBinding,
NULL
);
ASSERT_EFI_ERROR (Status);
return Status;
}
/**
Stops a device controller or a bus controller.
@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
@param[in] ControllerHandle A handle to the device being stopped. The handle must
support a bus specific I/O protocol for the driver
to use to stop the device.
@param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.
@param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL
if NumberOfChildren is 0.
@retval EFI_SUCCESS The device was stopped.
@retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
**/
EFI_STATUS
EFIAPI
IsaBusDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
{
EFI_STATUS Status;
EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;
ISA_BUS_PRIVATE_DATA *Private;
UINTN Index;
BOOLEAN AllChildrenStopped;
Status = gBS->OpenProtocol (
Controller,
&gEfiIsaHcServiceBindingProtocolGuid,
(VOID **) &ServiceBinding,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return Status;
}
Private = ISA_BUS_PRIVATE_DATA_FROM_THIS (ServiceBinding);
if (NumberOfChildren == 0) {
Status = gBS->UninstallMultipleProtocolInterfaces (
Controller,
&gEfiIsaHcServiceBindingProtocolGuid, &Private->ServiceBinding,
NULL
);
if (!EFI_ERROR (Status)) {
gBS->CloseProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
This->DriverBindingHandle,
Controller
);
gBS->CloseProtocol (
Controller,
&gEfiIsaHcProtocolGuid,
This->DriverBindingHandle,
Controller
);
FreePool (Private);
}
return Status;
}
AllChildrenStopped = TRUE;
for (Index = 0; Index < NumberOfChildren; Index++) {
Status = ServiceBinding->DestroyChild (ServiceBinding, ChildHandleBuffer[Index]);
if (EFI_ERROR (Status)) {
AllChildrenStopped = FALSE;
}
}
return AllChildrenStopped ? EFI_SUCCESS : EFI_DEVICE_ERROR;
}
//
// ISA Bus Driver Binding Protocol Instance
//
EFI_DRIVER_BINDING_PROTOCOL gIsaBusDriverBinding = {
IsaBusDriverBindingSupported,
IsaBusDriverBindingStart,
IsaBusDriverBindingStop,
0x10,
NULL,
NULL
};
/**
Entry point of the IsaBusDxe driver.
@param[in] ImageHandle The firmware allocated handle for the EFI image.
@param[in] SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The entry point is executed successfully.
@retval other Some error occurs when executing this entry point.
**/
EFI_STATUS
EFIAPI
InitializeIsaBus (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
Status = EfiLibInstallDriverBindingComponentName2 (
ImageHandle,
SystemTable,
&gIsaBusDriverBinding,
ImageHandle,
&gIsaBusComponentName,
&gIsaBusComponentName2
);
ASSERT_EFI_ERROR (Status);
return Status;
}

46
Bus/Isa/IsaBusDxe/IsaBusDxe.h Normal file
View File

@ -0,0 +1,46 @@
/** @file
Header file for the ISA BUS driver.
Copyright (c) 2015, Intel Corporation. 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
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.
**/
#ifndef _ISA_BUS_H_
#define _ISA_BUS_H_
#include <Uefi.h>
#include <Protocol/IsaHc.h>
#include <Library/UefiLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/DebugLib.h>
#include <Library/DevicePathLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Protocol/DevicePath.h>
#include <Protocol/ServiceBinding.h>
typedef struct {
UINT32 Signature;
EFI_SERVICE_BINDING_PROTOCOL ServiceBinding;
EFI_ISA_HC_PROTOCOL *IsaHc; ///< ISA HC protocol produced by the ISA Host Controller driver
EFI_HANDLE IsaHcHandle; ///< ISA HC handle created by the ISA Host Controller driver
} ISA_BUS_PRIVATE_DATA;
#define ISA_BUS_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('_', 'i', 's', 'b')
#define ISA_BUS_PRIVATE_DATA_FROM_THIS(a) CR (a, ISA_BUS_PRIVATE_DATA, ServiceBinding, ISA_BUS_PRIVATE_DATA_SIGNATURE)
typedef struct {
UINT32 Signature;
BOOLEAN InDestroying; ///< Flag to avoid DestroyChild() re-entry.
} ISA_BUS_CHILD_PRIVATE_DATA;
#define ISA_BUS_CHILD_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('_', 'i', 's', 'c')
extern EFI_DRIVER_BINDING_PROTOCOL gIsaBusDriverBinding;
#endif

59
Bus/Isa/IsaBusDxe/IsaBusDxe.inf Normal file
View File

@ -0,0 +1,59 @@
## @file
# ISA Bus driver to manage the child devices attached to the ISA Host Controller.
#
# This driver follows UEFI driver model and layers on ISA HC protocol defined
# in PI spec 1.2.1. It consumes the ISA Host Controller protocol produced by
# the ISA Host Controller and installs the ISA Host Controller Service Binding
# protocol on the ISA Host Controller's handle.
#
# Copyright (c) 2015, Intel Corporation. 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
# 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.
#
#
##
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = IsaBusDxe
FILE_GUID = DCBE6D66-D928-4138-8041-358F35CBCF80
MODULE_TYPE = UEFI_DRIVER
VERSION_STRING = 1.0
ENTRY_POINT = InitializeIsaBus
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = IA32 X64 IPF EBC
#
# DRIVER_BINDING = gIsaBusDriverBinding
# COMPONENT_NAME = gIsaBusComponentName
# COMPONENT_NAME2 = gIsaBusComponentName2
#
[Sources]
IsaBusDxe.h
IsaBusDxe.c
ComponentName.h
ComponentName.c
[Packages]
MdePkg/MdePkg.dec
[LibraryClasses]
UefiDriverEntryPoint
UefiBootServicesTableLib
BaseLib
BaseMemoryLib
MemoryAllocationLib
UefiLib
DebugLib
[Protocols]
gEfiIsaHcProtocolGuid
gEfiIsaHcServiceBindingProtocolGuid

1
MdeModulePkg/MdeModulePkg.dsc
View File

@ -231,6 +231,7 @@
MdeModulePkg/Bus/I2c/I2cDxe/I2cBusDxe.inf MdeModulePkg/Bus/I2c/I2cDxe/I2cBusDxe.inf
MdeModulePkg/Bus/I2c/I2cDxe/I2cHostDxe.inf MdeModulePkg/Bus/I2c/I2cDxe/I2cHostDxe.inf
MdeModulePkg/Bus/I2c/I2cDxe/I2cDxe.inf MdeModulePkg/Bus/I2c/I2cDxe/I2cDxe.inf
MdeModulePkg/Bus/Isa/IsaBusDxe/IsaBusDxe.inf
MdeModulePkg/Core/Dxe/DxeMain.inf { MdeModulePkg/Core/Dxe/DxeMain.inf {
<LibraryClasses> <LibraryClasses>