Code scrub for IdeBusDxe driver

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8636 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
jchen20 2009-06-24 02:21:05 +00:00
parent 4e97801cfa
commit 630d580d53
10 changed files with 3109 additions and 4023 deletions

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@ -1,4 +1,6 @@
/** @file
UEFI Component Name(2) protocol implementation for ConPlatform driver.
Copyright (c) 2006 - 2008, 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

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@ -1,4 +1,7 @@
/** @file
UEFI Component Name(2) protocol implementation header file for IDE Bus driver.
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
@ -13,7 +16,7 @@
#ifndef _IDE_BUS_COMPONENT_NAME_H_
#define _IDE_BUS_COMPONENT_NAME_H_
#define ADD_NAME(x) AddName ((x));
#define ADD_IDE_ATAPI_NAME(x) AddName ((x));
extern EFI_COMPONENT_NAME_PROTOCOL gIDEBusComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gIDEBusComponentName2;
@ -150,11 +153,9 @@ IDEBusComponentNameGetControllerName (
/**
TODO: Add function description
Add the component name for the IDE/ATAPI device
@param IdeBlkIoDevicePtr TODO: add argument description
TODO: add return values.
@param IdeBlkIoDevicePtr A pointer to the IDE_BLK_IO_DEV instance.
**/
VOID

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@ -1,4 +1,7 @@
/** @file
Implementation of UEFI Driver Configuration Protocol for IDE bus driver which
provides ability to set IDE bus controller specific options.
Copyright (c) 2006 - 2008, 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
@ -31,11 +34,11 @@ EFI_DRIVER_CONFIGURATION_PROTOCOL gIDEBusDriverConfiguration = {
};
/**
TODO: Add function description
Interprete keyboard input.
@retval EFI_ABORTED TODO: Add description for return value.
@retval EFI_SUCCESS TODO: Add description for return value.
@retval EFI_NOT_FOUND TODO: Add description for return value.
@retval EFI_ABORTED Get an 'ESC' key inputed.
@retval EFI_SUCCESS Get an 'Y' or 'y' inputed.
@retval EFI_NOT_FOUND Get an 'N' or 'n' inputed..
**/
EFI_STATUS
@ -80,46 +83,35 @@ GetResponse (
Allows the user to set controller specific options for a controller that a
driver is currently managing.
@param This A pointer to the EFI_DRIVER_CONFIGURATION_ PROTOCOL
instance.
@param ControllerHandle The handle of the controller to set options on.
@param ChildHandle The handle of the child controller to set options on.
This is an optional parameter that may be NULL.
It will be NULL for device drivers, and for a bus drivers
that wish to set options for the bus controller.
It will not be NULL for a bus driver that wishes to set
options for one of its child controllers.
@param Language A pointer to a three character ISO 639-2 language
identifier. This is the language of the user interface
that should be presented to the user, 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.
@param ActionRequired A pointer to the action that the calling agent is
required to perform when this function returns.
See "Related Definitions" for a list of the actions that
the calling agent is required to perform prior to
accessing ControllerHandle again.
@param This A pointer to the EFI_DRIVER_CONFIGURATION_ PROTOCOL instance.
@param ControllerHandle The handle of the controller to set options on.
@param ChildHandle The handle of the child controller to set options on.
This is an optional parameter that may be NULL.
It will be NULL for device drivers, and for a bus drivers
that wish to set options for the bus controller.
It will not be NULL for a bus driver that wishes to set
options for one of its child controllers.
@param Language A pointer to a three character ISO 639-2 language identifier.
This is the language of the user interface that should be presented
to the user, 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.
@param ActionRequired A pointer to the action that the calling agent is required
to perform when this function returns.
@retval EFI_SUCCESS The driver specified by This successfully set the
configuration options for the controller specified
by ControllerHandle..
@retval EFI_SUCCESS The driver specified by This successfully set the configuration
options for the controller specified by ControllerHandle..
@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a
valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ActionRequired is NULL.
@retval EFI_UNSUPPORTED The driver specified by This does not support
setting configuration options for the controller
specified by ControllerHandle and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support the
language specified by Language.
@retval EFI_DEVICE_ERROR A device error occurred while attempt to set the
configuration options for the controller specified
by ControllerHandle and ChildHandle.
@retval EFI_OUT_RESOURCES There are not enough resources available to set the
configuration options for the controller specified
by ControllerHandle and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support setting configuration options for
the controller specified by ControllerHandle and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support the language specified by Language.
@retval EFI_DEVICE_ERROR A device error occurred while attempt to set the configuration options for the
controller specified by ControllerHandle and ChildHandle.
@retval EFI_OUT_RESOURCES There are not enough resources available to set the configuration options for the
controller specified by ControllerHandle and ChildHandle
**/
EFI_STATUS
EFIAPI
@ -189,35 +181,25 @@ IDEBusDriverConfigurationSetOptions (
/**
Tests to see if a controller's current configuration options are valid.
@param This A pointer to the EFI_DRIVER_CONFIGURATION_PROTOCOL
instance.
@param ControllerHandle The handle of the controller to test if it's current
configuration options are valid.
@param ChildHandle The handle of the child controller to test if it's
current
configuration options are valid. 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 test the configuration options for the bus
controller. It will not be NULL for a bus driver that
wishes to test configuration options for one of
its child controllers.
@retval EFI_SUCCESS The controller specified by ControllerHandle and
ChildHandle that is being managed by the driver
specified by This has a valid set of configuration
options.
@param This A pointer to the EFI_DRIVER_CONFIGURATION_PROTOCOL instance.
@param ControllerHandle The handle of the controller to test if it's current configuration options
are valid.
@param ChildHandle The handle of the child controller to test if it's current configuration
options are valid. 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 test the configuration options for the bus controller. It will
not be NULL for a bus driver that wishes to test configuration options for
one of its child controllers.
@retval EFI_SUCCESS The controller specified by ControllerHandle and ChildHandle that is being
managed by the driver specified by This has a valid set of configuration
options.
@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
EFI_HANDLE.
@retval EFI_UNSUPPORTED The driver specified by This is not currently
managing the controller specified by
ControllerHandle and ChildHandle.
@retval EFI_DEVICE_ERROR The controller specified by ControllerHandle and
ChildHandle that is being managed by the driver
specified by This has an invalid set of
configuration options.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid EFI_HANDLE.
@retval EFI_UNSUPPORTED The driver specified by This is not currently managing the controller
specified by ControllerHandle and ChildHandle.
@retval EFI_DEVICE_ERROR The controller specified by ControllerHandle and ChildHandle that is being
managed by the driver specified by This has an invalid set of configuration
options.
**/
EFI_STATUS
EFIAPI
@ -249,51 +231,37 @@ IDEBusDriverConfigurationOptionsValid (
return EFI_SUCCESS;
}
/**
Forces a driver to set the default configuration options for a controller.
@param This A pointer to the EFI_DRIVER_CONFIGURATION_ PROTOCOL
instance.
@param ControllerHandle The handle of the controller to force default
configuration options on.
@param ChildHandle The handle of the child controller to force default
configuration options on 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
force default configuration options for the bus
controller. It will not be NULL for a bus driver that
wishes to force default configuration options for one
of its child controllers.
@param DefaultType The type of default configuration options to force on
the controller specified by ControllerHandle and
ChildHandle. See Table 9-1 for legal values.
A DefaultType of 0x00000000 must be supported
by this protocol.
@param ActionRequired A pointer to the action that the calling agent
is required to perform when this function returns.
@param This A pointer to the EFI_DRIVER_CONFIGURATION_ PROTOCOL instance.
@param ControllerHandle The handle of the controller to force default configuration options on.
@param ChildHandle The handle of the child controller to force default configuration
options on 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 force default configuration options for the bus
controller. It will not be NULL for a bus driver that wishes to force
default configuration options for one of its child controllers.
@param DefaultType The type of default configuration options to force on the controller
specified by ControllerHandle and ChildHandle.
@param ActionRequired A pointer to the action that the calling agent is required to perform
when this function returns.
@retval EFI_SUCCESS The driver specified by This successfully forced
the default configuration options on the
controller specified by ControllerHandle and
ChildHandle.
@retval EFI_SUCCESS The driver specified by This successfully forced the
default configuration options on the controller specified by
ControllerHandle and ChildHandle.
@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a
valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ActionRequired is NULL.
@retval EFI_UNSUPPORTED The driver specified by This does not support
forcing the default configuration options on
the controller specified by ControllerHandle
and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the configuration type specified by DefaultType.
@retval EFI_DEVICE_ERROR A device error occurred while attempt to force
the default configuration options on the controller
specified by ControllerHandle and ChildHandle.
@retval EFI_OUT_RESOURCES There are not enough resources available to force
the default configuration options on the controller
specified by ControllerHandle and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support forcing the default
configuration options on the controller specified by ControllerHandle
and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support the configuration type
specified by DefaultType.
@retval EFI_DEVICE_ERROR A device error occurred while attempt to force the default configuration
options on the controller specified by ControllerHandle and ChildHandle.
@retval EFI_OUT_RESOURCES There are not enough resources available to force the default configuration
options on the controller specified by ControllerHandle and ChildHandle.
**/
EFI_STATUS
EFIAPI

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@ -1,4 +1,7 @@
/** @file
Implementation of UEFI driver Dialnostics protocol which to perform diagnostic on the IDE
Bus controller.
Copyright (c) 2006 - 2008, 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
@ -34,59 +37,49 @@ GLOBAL_REMOVE_IF_UNREFERENCED EFI_DRIVER_DIAGNOSTICS2_PROTOCOL gIDEBusDriverDiag
/**
Runs diagnostics on a controller.
@param This A pointer to the EFI_DRIVER_DIAGNOSTICS_PROTOCOL
instance.
@param This A pointer to the EFI_DRIVER_DIAGNOSTICS_PROTOCOLinstance.
@param ControllerHandle The handle of the controller to run diagnostics on.
@param ChildHandle The handle of the child controller to run diagnostics on
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 run diagnostics on the bus
controller. It will not be NULL for a bus driver that
wishes to run diagnostics on one of its child
controllers.
@param DiagnosticType Indicates type of diagnostics to perform on the
controller specified by ControllerHandle and ChildHandle.
See "Related Definitions" for the list of supported
types.
@param Language A pointer to a three character ISO 639-2 language
identifier. This is the language in which the optional
error message should be returned in Buffer, 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.
@param ErrorType A GUID that defines the format of the data returned in
Buffer.
@param BufferSize The size, in bytes, of the data returned in Buffer.
@param Buffer A buffer that contains a Null-terminated Unicode string
plus some additional data whose format is defined by
ErrorType. Buffer is allocated by this function with
AllocatePool(), and it is the caller's responsibility
to free it with a call to FreePool().
@param ChildHandle The handle of the child controller to run diagnostics on
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 run diagnostics on the bus controller.
It will not be NULL for a bus driver that wishes to run
diagnostics on one of its child controllers.
@param DiagnosticType Indicates type of diagnostics to perform on the controller
specified by ControllerHandle and ChildHandle.
@param Language A pointer to a three character ISO 639-2 language identifier.
This is the language in which the optional error message should
be returned in Buffer, 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.
@param ErrorType A GUID that defines the format of the data returned in Buffer.
@param BufferSize The size, in bytes, of the data returned in Buffer.
@param Buffer A buffer that contains a Null-terminated Unicode string
plus some additional data whose format is defined by ErrorType.
Buffer is allocated by this function with AllocatePool(), and
it is the caller's responsibility to free it with a call to FreePool().
@retval EFI_SUCCESS The controller specified by ControllerHandle and
ChildHandle passed the diagnostic.
@retval EFI_SUCCESS The controller specified by ControllerHandle and ChildHandle passed
the diagnostic.
@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
EFI_HANDLE.
@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 ErrorType is NULL.
@retval EFI_INVALID_PARAMETER BufferType is NULL.
@retval EFI_INVALID_PARAMETER Buffer is NULL.
@retval EFI_UNSUPPORTED The driver specified by This does not support
running diagnostics for the controller specified
by ControllerHandle and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support the
type of diagnostic specified by DiagnosticType.
@retval EFI_UNSUPPORTED The driver specified by This does not support the
language specified by Language.
@retval EFI_OUT_OF_RESOURCES There are not enough resources available to complete
the diagnostics.
@retval EFI_OUT_OF_RESOURCES There are not enough resources available to return
the status information in ErrorType, BufferSize,
and Buffer.
@retval EFI_DEVICE_ERROR The controller specified by ControllerHandle and
ChildHandle did not pass the diagnostic.
@retval EFI_UNSUPPORTED The driver specified by This does not support running
diagnostics for the controller specified by ControllerHandle
and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support the
type of diagnostic specified by DiagnosticType.
@retval EFI_UNSUPPORTED The driver specified by This does not support the language
specified by Language.
@retval EFI_OUT_OF_RESOURCES There are not enough resources available to complete the
diagnostics.
@retval EFI_OUT_OF_RESOURCES There are not enough resources available to return the
status information in ErrorType, BufferSize,and Buffer.
@retval EFI_DEVICE_ERROR The controller specified by ControllerHandle and ChildHandle
did not pass the diagnostic.
**/
EFI_STATUS
EFIAPI

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@ -1,4 +1,8 @@
/** @file
This file implement UEFI driver for IDE Bus which includes device identification,
Child device(Disk, CDROM, etc) enumeration and child handler installation, and
driver stop.
Copyright (c) 2006 - 2008, 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
@ -30,21 +34,106 @@ EFI_DRIVER_BINDING_PROTOCOL gIDEBusDriverBinding = {
NULL,
NULL
};
//
// ***********************************************************************************
// IDEBusDriverBindingSupported
// ***********************************************************************************
//
/**
Register Driver Binding protocol for this driver.
Deregister an IDE device and free resources
@param[in] This -- A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
@param[in] ControllerHandle -- The handle of the controller to test.
@param[in] RemainingDevicePath -- A pointer to the remaining portion of a device path.
@param This Protocol instance pointer.
@param Controller Ide device handle
@param Handle Handle of device to deregister driver on
@retval EFI_SUCCESS Deregiter a specific IDE device successfully
**/
EFI_STATUS
DeRegisterIdeDevice (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_HANDLE Handle
)
{
EFI_STATUS Status;
EFI_BLOCK_IO_PROTOCOL *BlkIo;
IDE_BLK_IO_DEV *IdeBlkIoDevice;
EFI_PCI_IO_PROTOCOL *PciIo;
UINTN Index;
Status = gBS->OpenProtocol (
Handle,
&gEfiBlockIoProtocolGuid,
(VOID **) &BlkIo,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return Status;
}
IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (BlkIo);
//
// Report Status code: Device disabled
//
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_PROGRESS_CODE,
(EFI_IO_BUS_ATA_ATAPI | EFI_P_PC_DISABLE),
IdeBlkIoDevice->DevicePath
);
//
// Close the child handle
//
Status = gBS->CloseProtocol (
Controller,
&gEfiPciIoProtocolGuid,
This->DriverBindingHandle,
Handle
);
Status = gBS->UninstallMultipleProtocolInterfaces (
Handle,
&gEfiDevicePathProtocolGuid,
IdeBlkIoDevice->DevicePath,
&gEfiBlockIoProtocolGuid,
&IdeBlkIoDevice->BlkIo,
&gEfiDiskInfoProtocolGuid,
&IdeBlkIoDevice->DiskInfo,
NULL
);
if (EFI_ERROR (Status)) {
gBS->OpenProtocol (
Controller,
&gEfiPciIoProtocolGuid,
(VOID **) &PciIo,
This->DriverBindingHandle,
Handle,
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
);
return Status;
}
//
// Release allocated resources
//
Index = IdeBlkIoDevice->Channel * 2 + IdeBlkIoDevice->Device;
if (Index < MAX_IDE_DEVICE) {
IdeBlkIoDevice->IdeBusDriverPrivateData->HaveScannedDevice[Index] = FALSE;
}
ReleaseIdeResources (IdeBlkIoDevice);
return EFI_SUCCESS;
}
/**
Supported function of Driver Binding protocol for this driver.
@param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
@param ControllerHandle The handle of the controller to test.
@param RemainingDevicePath A pointer to the remaining portion of a device path.
@retval EFI_SUCCESS Driver loaded.
@retval other Driver not loaded.
@retval other Driver not loaded.
**/
EFI_STATUS
@ -54,8 +143,6 @@ IDEBusDriverBindingSupported (
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
// TODO: Controller - add argument and description to function comment
// TODO: EFI_UNSUPPORTED - add return value to function comment
{
EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
@ -134,22 +221,18 @@ IDEBusDriverBindingSupported (
return Status;
}
//
// ***********************************************************************************
// IDEBusDriverBindingStart
// ***********************************************************************************
//
/**
Start this driver on Controller by detecting all disks and installing
BlockIo protocol on them.
Start function of Driver binding protocol which start this driver on Controller
by detecting all disks and installing BlockIo protocol on them.
@param This Protocol instance pointer.
@param Controller Handle of device to bind driver to.
@param RemainingDevicePath Not used, always produce all possible children.
@param This Protocol instance pointer.
@param Controller Handle of device to bind driver to.
@param RemainingDevicePath produce all possible children.
@retval EFI_SUCCESS This driver is added to ControllerHandle.
@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.
@retval other This driver does not support this device.
**/
EFI_STATUS
@ -698,7 +781,7 @@ IDEBusDriverBindingStart (
// Add Component Name for the IDE/ATAPI device that was discovered.
//
IdeBlkIoDevicePtr->ControllerNameTable = NULL;
ADD_NAME (IdeBlkIoDevicePtr);
ADD_IDE_ATAPI_NAME (IdeBlkIoDevicePtr);
Status = gBS->InstallMultipleProtocolInterfaces (
&IdeBlkIoDevicePtr->Handle,
@ -821,14 +904,9 @@ ErrorExit:
return Status;
}
//
// ***********************************************************************************
// IDEBusDriverBindingStop
// ***********************************************************************************
//
/**
Stop this driver on Controller Handle.
Stop function of Driver Binding Protocol which is to stop the driver on Controller Handle and all
child handle attached to the controller handle if there are.
@param This Protocol instance pointer.
@param Controller Handle of device to stop driver on
@ -847,8 +925,6 @@ IDEBusDriverBindingStop (
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
// TODO: Controller - add argument and description to function comment
// TODO: EFI_DEVICE_ERROR - add return value to function comment
{
EFI_STATUS Status;
EFI_PCI_IO_PROTOCOL *PciIo;
@ -949,115 +1025,15 @@ IDEBusDriverBindingStop (
return EFI_SUCCESS;
}
//
// ***********************************************************************************
// DeRegisterIdeDevice
// ***********************************************************************************
//
/**
Deregister an IDE device and free resources
issue ATA or ATAPI command to reset a block IO device.
@param This Block IO protocol instance pointer.
@param ExtendedVerification If FALSE,for ATAPI device, driver will only invoke ATAPI reset method
If TRUE, for ATAPI device, driver need invoke ATA reset method after
invoke ATAPI reset method
@param This Protocol instance pointer.
@param Controller Ide device handle
@param Handle Handle of device to deregister driver on
@return EFI_STATUS
**/
EFI_STATUS
DeRegisterIdeDevice (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_HANDLE Handle
)
// TODO: EFI_SUCCESS - add return value to function comment
{
EFI_STATUS Status;
EFI_BLOCK_IO_PROTOCOL *BlkIo;
IDE_BLK_IO_DEV *IdeBlkIoDevice;
EFI_PCI_IO_PROTOCOL *PciIo;
UINTN Index;
Status = gBS->OpenProtocol (
Handle,
&gEfiBlockIoProtocolGuid,
(VOID **) &BlkIo,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return Status;
}
IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (BlkIo);
//
// Report Status code: Device disabled
//
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_PROGRESS_CODE,
(EFI_IO_BUS_ATA_ATAPI | EFI_P_PC_DISABLE),
IdeBlkIoDevice->DevicePath
);
//
// Close the child handle
//
Status = gBS->CloseProtocol (
Controller,
&gEfiPciIoProtocolGuid,
This->DriverBindingHandle,
Handle
);
Status = gBS->UninstallMultipleProtocolInterfaces (
Handle,
&gEfiDevicePathProtocolGuid,
IdeBlkIoDevice->DevicePath,
&gEfiBlockIoProtocolGuid,
&IdeBlkIoDevice->BlkIo,
&gEfiDiskInfoProtocolGuid,
&IdeBlkIoDevice->DiskInfo,
NULL
);
if (EFI_ERROR (Status)) {
gBS->OpenProtocol (
Controller,
&gEfiPciIoProtocolGuid,
(VOID **) &PciIo,
This->DriverBindingHandle,
Handle,
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
);
return Status;
}
//
// Release allocated resources
//
Index = IdeBlkIoDevice->Channel * 2 + IdeBlkIoDevice->Device;
if (Index < MAX_IDE_DEVICE) {
IdeBlkIoDevice->IdeBusDriverPrivateData->HaveScannedDevice[Index] = FALSE;
}
ReleaseIdeResources (IdeBlkIoDevice);
return EFI_SUCCESS;
}
//
// ***********************************************************************************
// IDEBlkIoReset
// ***********************************************************************************
//
/**
GC_TODO: Add function description
@param This GC_TODO: add argument description.
@param ExtendedVerification GC_TODO: add argument description.
@retval EFI_DEVICE_ERROR GC_TODO: Add description for return value.
@retval EFI_DEVICE_ERROR When the device is neighther ATA device or ATAPI device.
@retval EFI_SUCCESS The device reset successfully
**/
EFI_STATUS
@ -1107,15 +1083,16 @@ Done:
}
/**
Read data from block io device
Read data from a block IO device
@param This Protocol instance pointer.
@param MediaId The media ID of the device
@param LBA Starting LBA address to read data
@param This Block IO protocol instance pointer.
@param MediaId The media ID of the device
@param LBA Starting LBA address to read data
@param BufferSize The size of data to be read
@param Buffer Caller supplied buffer to save data
@param Buffer Caller supplied buffer to save data
@return read data status
@retval EFI_DEVICE_ERROR unknown device type
@retval other read data status.
**/
EFI_STATUS
@ -1127,7 +1104,6 @@ IDEBlkIoReadBlocks (
IN UINTN BufferSize,
OUT VOID *Buffer
)
// TODO: EFI_DEVICE_ERROR - add return value to function comment
{
IDE_BLK_IO_DEV *IdeBlkIoDevice;
EFI_STATUS Status;
@ -1182,13 +1158,14 @@ Done:
/**
Write data to block io device
@param This Protocol instance pointer.
@param MediaId The media ID of the device
@param LBA Starting LBA address to write data
@param This Protocol instance pointer.
@param MediaId The media ID of the device
@param LBA Starting LBA address to write data
@param BufferSize The size of data to be written
@param Buffer Caller supplied buffer to save data
@param Buffer Caller supplied buffer to save data
@return write data status
@retval EFI_DEVICE_ERROR unknown device type
@retval other write data status
**/
EFI_STATUS
@ -1200,7 +1177,6 @@ IDEBlkIoWriteBlocks (
IN UINTN BufferSize,
IN VOID *Buffer
)
// TODO: EFI_DEVICE_ERROR - add return value to function comment
{
IDE_BLK_IO_DEV *IdeBlkIoDevice;
EFI_STATUS Status;
@ -1250,19 +1226,13 @@ Done:
gBS->RestoreTPL (OldTpl);
return Status;
}
//
// ***********************************************************************************
// IDEBlkIoFlushBlocks
// ***********************************************************************************
//
/**
TODO: Add function description
Flushes all modified data to a physical block devices
@param This TODO: add argument description
@retval EFI_SUCCESS GC_TODO: Add description for return value.
@param This Indicates a pointer to the calling context which to sepcify a
sepcific block device
@retval EFI_SUCCESS Always return success.
**/
EFI_STATUS
EFIAPI
@ -1362,14 +1332,14 @@ IDEDiskInfoIdentify (
Return the results of the Request Sense command to a drive in SenseData.
Data format of Sense data is defined by the Interface GUID.
@param This Protocol instance pointer.
@param SenseData Results of Request Sense command to device
@param SenseDataSize Size of SenseData in bytes.
@param This Protocol instance pointer.
@param SenseData Results of Request Sense command to device
@param SenseDataSize Size of SenseData in bytes.
@param SenseDataNumber Type of SenseData
@retval EFI_SUCCESS InquiryData valid
@retval EFI_NOT_FOUND Device does not support this data class
@retval EFI_DEVICE_ERROR Error reading InquiryData from device
@retval EFI_SUCCESS InquiryData valid
@retval EFI_NOT_FOUND Device does not support this data class
@retval EFI_DEVICE_ERROR Error reading InquiryData from device
@retval EFI_BUFFER_TOO_SMALL SenseDataSize not big enough
**/
@ -1389,11 +1359,11 @@ IDEDiskInfoSenseData (
Return the results of the Request Sense command to a drive in SenseData.
Data format of Sense data is defined by the Interface GUID.
@param This Protocol instance pointer.
@param This Protocol instance pointer.
@param IdeChannel Primary or Secondary
@param IdeDevice Master or Slave
@param IdeDevice Master or Slave
@retval EFI_SUCCESS IdeChannel and IdeDevice are valid
@retval EFI_SUCCESS IdeChannel and IdeDevice are valid
@retval EFI_UNSUPPORTED This is not an IDE device
**/
@ -1414,6 +1384,103 @@ IDEDiskInfoWhichIde (
return EFI_SUCCESS;
}
/**
The is an event(generally the event is exitBootService event) call back function.
Clear pending IDE interrupt before OS loader/kernel take control of the IDE device.
@param Event Pointer to this event
@param Context Event hanlder private data
**/
VOID
EFIAPI
ClearInterrupt (
IN EFI_EVENT Event,
IN VOID *Context
)
{
EFI_STATUS Status;
UINT64 IoPortForBmis;
UINT8 RegisterValue;
IDE_BLK_IO_DEV *IdeDev;
//
// Get our context
//
IdeDev = (IDE_BLK_IO_DEV *) Context;
//
// Obtain IDE IO port registers' base addresses
//
Status = ReassignIdeResources (IdeDev);
if (EFI_ERROR (Status)) {
return;
}
//
// Check whether interrupt is pending
//
//
// Reset IDE device to force it de-assert interrupt pin
// Note: this will reset all devices on this IDE channel
//
AtaSoftReset (IdeDev);
if (EFI_ERROR (Status)) {
return;
}
//
// Get base address of IDE Bus Master Status Regsiter
//
if (IdePrimary == IdeDev->Channel) {
IoPortForBmis = IdeDev->IoPort->BusMasterBaseAddr + BMISP_OFFSET;
} else {
if (IdeSecondary == IdeDev->Channel) {
IoPortForBmis = IdeDev->IoPort->BusMasterBaseAddr + BMISS_OFFSET;
} else {
return;
}
}
//
// Read BMIS register and clear ERROR and INTR bit
//
IdeDev->PciIo->Io.Read (
IdeDev->PciIo,
EfiPciIoWidthUint8,
EFI_PCI_IO_PASS_THROUGH_BAR,
IoPortForBmis,
1,
&RegisterValue
);
RegisterValue |= (BMIS_INTERRUPT | BMIS_ERROR);
IdeDev->PciIo->Io.Write (
IdeDev->PciIo,
EfiPciIoWidthUint8,
EFI_PCI_IO_PASS_THROUGH_BAR,
IoPortForBmis,
1,
&RegisterValue
);
//
// Select the other device on this channel to ensure this device to release the interrupt pin
//
if (IdeDev->Device == 0) {
RegisterValue = (1 << 4) | 0xe0;
} else {
RegisterValue = (0 << 4) | 0xe0;
}
IDEWritePortB (
IdeDev->PciIo,
IdeDev->IoPort->Head,
RegisterValue
);
}
/**
The user Entry Point for module IdeBus. The user code starts with this function.

View File

@ -119,34 +119,16 @@ typedef struct {
#include "Ide.h"
//
// Prototypes
// Driver model protocol interface
//
/**
TODO: Add function description
@param ImageHandle TODO: add argument description
@param SystemTable TODO: add argument description
TODO: add return values.
**/
EFI_STATUS
EFIAPI
IDEBusControllerDriverEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
);
/**
TODO: Add function description
Supported function of Driver Binding protocol for this driver.
@param This TODO: add argument description
@param Controller TODO: add argument description
@param RemainingDevicePath TODO: add argument description
@param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
@param ControllerHandle The handle of the controller to test.
@param RemainingDevicePath A pointer to the remaining portion of a device path.
TODO: add return values.
@retval EFI_SUCCESS Driver loaded.
@retval other Driver not loaded.
**/
EFI_STATUS
@ -158,13 +140,16 @@ IDEBusDriverBindingSupported (
);
/**
TODO: Add function description
Start function of Driver binding protocol which start this driver on Controller
by detecting all disks and installing BlockIo protocol on them.
@param This TODO: add argument description
@param Controller TODO: add argument description
@param RemainingDevicePath TODO: add argument description
@param This Protocol instance pointer.
@param Controller Handle of device to bind driver to.
@param RemainingDevicePath produce all possible children.
TODO: add return values.
@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
@ -176,14 +161,16 @@ IDEBusDriverBindingStart (
);
/**
TODO: Add function description
Stop function of Driver Binding Protocol which is to stop the driver on Controller Handle and all
child handle attached to the controller handle if there are.
@param This TODO: add argument description
@param Controller TODO: add argument description
@param NumberOfChildren TODO: add argument description
@param ChildHandleBuffer TODO: add argument description
@param This Protocol instance pointer.
@param Controller Handle of device to stop driver on
@param NumberOfChildren Not used
@param ChildHandleBuffer Not used
TODO: add return values.
@retval EFI_SUCCESS This driver is removed DeviceHandle
@retval other This driver was not removed from this device
**/
EFI_STATUS
@ -199,16 +186,38 @@ IDEBusDriverBindingStop (
// EFI Driver Configuration Functions
//
/**
TODO: Add function description
Allows the user to set controller specific options for a controller that a
driver is currently managing.
@param This TODO: add argument description
@param ControllerHandle TODO: add argument description
@param ChildHandle TODO: add argument description
@param Language TODO: add argument description
@param ActionRequired TODO: add argument description
TODO: add return values.
@param This A pointer to the EFI_DRIVER_CONFIGURATION_ PROTOCOL instance.
@param ControllerHandle The handle of the controller to set options on.
@param ChildHandle The handle of the child controller to set options on.
This is an optional parameter that may be NULL.
It will be NULL for device drivers, and for a bus drivers
that wish to set options for the bus controller.
It will not be NULL for a bus driver that wishes to set
options for one of its child controllers.
@param Language A pointer to a three character ISO 639-2 language identifier.
This is the language of the user interface that should be presented
to the user, 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.
@param ActionRequired A pointer to the action that the calling agent is required
to perform when this function returns.
@retval EFI_SUCCESS The driver specified by This successfully set the configuration
options for the controller specified by ControllerHandle..
@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ActionRequired is NULL.
@retval EFI_UNSUPPORTED The driver specified by This does not support setting configuration options for
the controller specified by ControllerHandle and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support the language specified by Language.
@retval EFI_DEVICE_ERROR A device error occurred while attempt to set the configuration options for the
controller specified by ControllerHandle and ChildHandle.
@retval EFI_OUT_RESOURCES There are not enough resources available to set the configuration options for the
controller specified by ControllerHandle and ChildHandle
**/
EFI_STATUS
EFIAPI
@ -221,14 +230,27 @@ IDEBusDriverConfigurationSetOptions (
);
/**
TODO: Add function description
@param This TODO: add argument description
@param ControllerHandle TODO: add argument description
@param ChildHandle TODO: add argument description
TODO: add return values.
Tests to see if a controller's current configuration options are valid.
@param This A pointer to the EFI_DRIVER_CONFIGURATION_PROTOCOL instance.
@param ControllerHandle The handle of the controller to test if it's current configuration options
are valid.
@param ChildHandle The handle of the child controller to test if it's current configuration
options are valid. 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 test the configuration options for the bus controller. It will
not be NULL for a bus driver that wishes to test configuration options for
one of its child controllers.
@retval EFI_SUCCESS The controller specified by ControllerHandle and ChildHandle that is being
managed by the driver specified by This has a valid set of configuration
options.
@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid EFI_HANDLE.
@retval EFI_UNSUPPORTED The driver specified by This is not currently managing the controller
specified by ControllerHandle and ChildHandle.
@retval EFI_DEVICE_ERROR The controller specified by ControllerHandle and ChildHandle that is being
managed by the driver specified by This has an invalid set of configuration
options.
**/
EFI_STATUS
EFIAPI
@ -239,16 +261,36 @@ IDEBusDriverConfigurationOptionsValid (
);
/**
TODO: Add function description
Forces a driver to set the default configuration options for a controller.
@param This TODO: add argument description
@param ControllerHandle TODO: add argument description
@param ChildHandle TODO: add argument description
@param DefaultType TODO: add argument description
@param ActionRequired TODO: add argument description
TODO: add return values.
@param This A pointer to the EFI_DRIVER_CONFIGURATION_ PROTOCOL instance.
@param ControllerHandle The handle of the controller to force default configuration options on.
@param ChildHandle The handle of the child controller to force default configuration
options on 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 force default configuration options for the bus
controller. It will not be NULL for a bus driver that wishes to force
default configuration options for one of its child controllers.
@param DefaultType The type of default configuration options to force on the controller
specified by ControllerHandle and ChildHandle.
@param ActionRequired A pointer to the action that the calling agent is required to perform
when this function returns.
@retval EFI_SUCCESS The driver specified by This successfully forced the
default configuration options on the controller specified by
ControllerHandle and ChildHandle.
@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ActionRequired is NULL.
@retval EFI_UNSUPPORTED The driver specified by This does not support forcing the default
configuration options on the controller specified by ControllerHandle
and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support the configuration type
specified by DefaultType.
@retval EFI_DEVICE_ERROR A device error occurred while attempt to force the default configuration
options on the controller specified by ControllerHandle and ChildHandle.
@retval EFI_OUT_RESOURCES There are not enough resources available to force the default configuration
options on the controller specified by ControllerHandle and ChildHandle.
**/
EFI_STATUS
EFIAPI
@ -264,19 +306,51 @@ IDEBusDriverConfigurationForceDefaults (
// EFI Driver Diagnostics Functions
//
/**
TODO: Add function description
Runs diagnostics on a controller.
@param This TODO: add argument description
@param ControllerHandle TODO: add argument description
@param ChildHandle TODO: add argument description
@param DiagnosticType TODO: add argument description
@param Language TODO: add argument description
@param ErrorType TODO: add argument description
@param BufferSize TODO: add argument description
@param Buffer TODO: add argument description
TODO: add return values.
@param This A pointer to the EFI_DRIVER_DIAGNOSTICS_PROTOCOLinstance.
@param ControllerHandle The handle of the controller to run diagnostics on.
@param ChildHandle The handle of the child controller to run diagnostics on
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 run diagnostics on the bus controller.
It will not be NULL for a bus driver that wishes to run
diagnostics on one of its child controllers.
@param DiagnosticType Indicates type of diagnostics to perform on the controller
specified by ControllerHandle and ChildHandle.
@param Language A pointer to a three character ISO 639-2 language identifier.
This is the language in which the optional error message should
be returned in Buffer, 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.
@param ErrorType A GUID that defines the format of the data returned in Buffer.
@param BufferSize The size, in bytes, of the data returned in Buffer.
@param Buffer A buffer that contains a Null-terminated Unicode string
plus some additional data whose format is defined by ErrorType.
Buffer is allocated by this function with AllocatePool(), and
it is the caller's responsibility to free it with a call to FreePool().
@retval EFI_SUCCESS The controller specified by ControllerHandle and ChildHandle passed
the diagnostic.
@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
@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 ErrorType is NULL.
@retval EFI_INVALID_PARAMETER BufferType is NULL.
@retval EFI_INVALID_PARAMETER Buffer is NULL.
@retval EFI_UNSUPPORTED The driver specified by This does not support running
diagnostics for the controller specified by ControllerHandle
and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support the
type of diagnostic specified by DiagnosticType.
@retval EFI_UNSUPPORTED The driver specified by This does not support the language
specified by Language.
@retval EFI_OUT_OF_RESOURCES There are not enough resources available to complete the
diagnostics.
@retval EFI_OUT_OF_RESOURCES There are not enough resources available to return the
status information in ErrorType, BufferSize,and Buffer.
@retval EFI_DEVICE_ERROR The controller specified by ControllerHandle and ChildHandle
did not pass the diagnostic.
**/
EFI_STATUS
EFIAPI
@ -291,16 +365,15 @@ IDEBusDriverDiagnosticsRunDiagnostics (
OUT CHAR16 **Buffer
);
//
// Block I/O Protocol Interface
//
/**
TODO: Add function description
issue ATA or ATAPI command to reset a block IO device.
@param This Block IO protocol instance pointer.
@param ExtendedVerification If FALSE,for ATAPI device, driver will only invoke ATAPI reset method
If TRUE, for ATAPI device, driver need invoke ATA reset method after
invoke ATAPI reset method
@param This TODO: add argument description
@param ExtendedVerification TODO: add argument description
TODO: add return values.
@retval EFI_DEVICE_ERROR When the device is neighther ATA device or ATAPI device.
@retval EFI_SUCCESS The device reset successfully
**/
EFI_STATUS
@ -311,15 +384,16 @@ IDEBlkIoReset (
);
/**
TODO: Add function description
Read data from a block IO device
@param This TODO: add argument description
@param MediaId TODO: add argument description
@param Lba TODO: add argument description
@param BufferSize TODO: add argument description
@param Buffer TODO: add argument description
@param This Block IO protocol instance pointer.
@param MediaId The media ID of the device
@param LBA Starting LBA address to read data
@param BufferSize The size of data to be read
@param Buffer Caller supplied buffer to save data
TODO: add return values.
@retval EFI_DEVICE_ERROR unknown device type
@retval EFI_SUCCESS read the data successfully.
**/
EFI_STATUS
@ -333,15 +407,16 @@ IDEBlkIoReadBlocks (
);
/**
TODO: Add function description
Write data to block io device
@param This TODO: add argument description
@param MediaId TODO: add argument description
@param Lba TODO: add argument description
@param BufferSize TODO: add argument description
@param Buffer TODO: add argument description
@param This Protocol instance pointer.
@param MediaId The media ID of the device
@param LBA Starting LBA address to write data
@param BufferSize The size of data to be written
@param Buffer Caller supplied buffer to save data
TODO: add return values.
@retval EFI_DEVICE_ERROR unknown device type
@retval other write data status
**/
EFI_STATUS
@ -355,42 +430,30 @@ IDEBlkIoWriteBlocks (
);
/**
TODO: Add function description
Flushes all modified data to a physical block devices
@param This TODO: add argument description
TODO: add return values.
@param This Indicates a pointer to the calling context which to sepcify a
sepcific block device
@retval EFI_SUCCESS Always return success.
**/
EFI_STATUS
EFIAPI
IDEBlkIoFlushBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This
);
/**
TODO: Add function description
Return the results of the Inquiry command to a drive in InquiryData.
Data format of Inquiry data is defined by the Interface GUID.
@param PciIo TODO: add argument description
@param Enable TODO: add argument description
@param This Protocol instance pointer.
@param InquiryData Results of Inquiry command to device
@param InquiryDataSize Size of InquiryData in bytes.
TODO: add return values.
**/
EFI_STATUS
IDERegisterDecodeEnableorDisable (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN BOOLEAN Enable
);
/**
TODO: Add function description
@param This TODO: add argument description
@param InquiryData TODO: add argument description
@param IntquiryDataSize TODO: add argument description
TODO: add return values.
@retval EFI_SUCCESS InquiryData valid
@retval EFI_NOT_FOUND Device does not support this data class
@retval EFI_DEVICE_ERROR Error reading InquiryData from device
@retval EFI_BUFFER_TOO_SMALL IntquiryDataSize not big enough
**/
EFI_STATUS
@ -402,13 +465,17 @@ IDEDiskInfoInquiry (
);
/**
TODO: Add function description
Return the results of the Identify command to a drive in IdentifyData.
Data format of Identify data is defined by the Interface GUID.
@param This TODO: add argument description
@param IdentifyData TODO: add argument description
@param IdentifyDataSize TODO: add argument description
@param This Protocol instance pointer.
@param IdentifyData Results of Identify command to device
@param IdentifyDataSize Size of IdentifyData in bytes.
TODO: add return values.
@retval EFI_SUCCESS IdentifyData valid
@retval EFI_NOT_FOUND Device does not support this data class
@retval EFI_DEVICE_ERROR Error reading IdentifyData from device
@retval EFI_BUFFER_TOO_SMALL IdentifyDataSize not big enough
**/
EFI_STATUS
@ -420,14 +487,18 @@ IDEDiskInfoIdentify (
);
/**
TODO: Add function description
Return the results of the Request Sense command to a drive in SenseData.
Data format of Sense data is defined by the Interface GUID.
@param This TODO: add argument description
@param SenseData TODO: add argument description
@param SenseDataSize TODO: add argument description
@param SenseDataNumber TODO: add argument description
@param This Protocol instance pointer.
@param SenseData Results of Request Sense command to device
@param SenseDataSize Size of SenseData in bytes.
@param SenseDataNumber Type of SenseData
TODO: add return values.
@retval EFI_SUCCESS InquiryData valid
@retval EFI_NOT_FOUND Device does not support this data class
@retval EFI_DEVICE_ERROR Error reading InquiryData from device
@retval EFI_BUFFER_TOO_SMALL SenseDataSize not big enough
**/
EFI_STATUS
@ -440,13 +511,15 @@ IDEDiskInfoSenseData (
);
/**
TODO: Add function description
Return the results of the Request Sense command to a drive in SenseData.
Data format of Sense data is defined by the Interface GUID.
@param This TODO: add argument description
@param IdeChannel TODO: add argument description
@param IdeDevice TODO: add argument description
@param This Protocol instance pointer.
@param IdeChannel Primary or Secondary
@param IdeDevice Master or Slave
TODO: add return values.
@retval EFI_SUCCESS IdeChannel and IdeDevice are valid
@retval EFI_UNSUPPORTED This is not an IDE device
**/
EFI_STATUS
@ -456,5 +529,18 @@ IDEDiskInfoWhichIde (
OUT UINT32 *IdeChannel,
OUT UINT32 *IdeDevice
);
/**
The is an event(generally the event is exitBootService event) call back function.
Clear pending IDE interrupt before OS loader/kernel take control of the IDE device.
@param Event Pointer to this event
@param Context Event hanlder private data
**/
VOID
EFIAPI
ClearInterrupt (
IN EFI_EVENT Event,
IN VOID *Context
);
#endif