audk/IntelFrameworkModulePkg/Bus/Pci/IdeBusDxe/DriverConfiguration.c

322 lines
11 KiB
C

/** @file
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
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 "IdeBus.h"
CHAR16 *OptionString[4] = {
L"Enable Primary Master (Y/N)? -->",
L"Enable Primary Slave (Y/N)? -->",
L"Enable Secondary Master (Y/N)? -->",
L"Enable Secondary Slave (Y/N)? -->"
};
//
// EFI Driver Configuration Protocol
//
EFI_DRIVER_CONFIGURATION_PROTOCOL gIDEBusDriverConfiguration = {
IDEBusDriverConfigurationSetOptions,
IDEBusDriverConfigurationOptionsValid,
IDEBusDriverConfigurationForceDefaults,
"eng"
};
/**
TODO: Add function description
@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
**/
EFI_STATUS
GetResponse (
VOID
)
{
EFI_STATUS Status;
EFI_INPUT_KEY Key;
while (TRUE) {
Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
if (!EFI_ERROR (Status)) {
if (Key.ScanCode == SCAN_ESC) {
return EFI_ABORTED;
}
switch (Key.UnicodeChar) {
//
// fall through
//
case L'y':
case L'Y':
gST->ConOut->OutputString (gST->ConOut, L"Y\n");
return EFI_SUCCESS;
//
// fall through
//
case L'n':
case L'N':
gST->ConOut->OutputString (gST->ConOut, L"N\n");
return EFI_NOT_FOUND;
}
}
}
}
/**
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.
@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
IDEBusDriverConfigurationSetOptions (
IN EFI_DRIVER_CONFIGURATION_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN CHAR8 *Language,
OUT EFI_DRIVER_CONFIGURATION_ACTION_REQUIRED *ActionRequired
)
{
EFI_STATUS Status;
UINT8 Value;
UINT8 NewValue;
UINTN DataSize;
UINTN Index;
if (ChildHandle != NULL) {
return EFI_UNSUPPORTED;
}
*ActionRequired = EfiDriverConfigurationActionNone;
DataSize = sizeof (Value);
Status = gRT->GetVariable (
L"Configuration",
&gEfiCallerIdGuid,
NULL,
&DataSize,
&Value
);
gST->ConOut->OutputString (gST->ConOut, L"IDE Bus Driver Configuration\n");
gST->ConOut->OutputString (gST->ConOut, L"===============================\n");
NewValue = 0;
for (Index = 0; Index < 4; Index++) {
gST->ConOut->OutputString (gST->ConOut, OptionString[Index]);
Status = GetResponse ();
if (Status == EFI_ABORTED) {
return EFI_SUCCESS;
}
if (!EFI_ERROR (Status)) {
NewValue = (UINT8) (NewValue | (1 << Index));
}
}
if (EFI_ERROR (Status) || (NewValue != Value)) {
gRT->SetVariable (
L"Configuration",
&gEfiCallerIdGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
sizeof (NewValue),
&NewValue
);
*ActionRequired = EfiDriverConfigurationActionRestartController;
} else {
*ActionRequired = EfiDriverConfigurationActionNone;
}
return EFI_SUCCESS;
}
/**
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
IDEBusDriverConfigurationOptionsValid (
IN EFI_DRIVER_CONFIGURATION_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL
)
{
EFI_STATUS Status;
UINT8 Value;
UINTN DataSize;
if (ChildHandle != NULL) {
return EFI_UNSUPPORTED;
}
DataSize = sizeof (Value);
Status = gRT->GetVariable (
L"Configuration",
&gEfiCallerIdGuid,
NULL,
&DataSize,
&Value
);
if (EFI_ERROR (Status) || Value > 0x0f) {
return EFI_DEVICE_ERROR;
}
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.
@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
IDEBusDriverConfigurationForceDefaults (
IN EFI_DRIVER_CONFIGURATION_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN UINT32 DefaultType,
OUT EFI_DRIVER_CONFIGURATION_ACTION_REQUIRED *ActionRequired
)
{
UINT8 Value;
if (ChildHandle != NULL) {
return EFI_UNSUPPORTED;
}
Value = 0x0f;
gRT->SetVariable (
L"Configuration",
&gEfiCallerIdGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
sizeof (Value),
&Value
);
*ActionRequired = EfiDriverConfigurationActionRestartController;
return EFI_SUCCESS;
}