mirror of https://github.com/acidanthera/audk.git
323 lines
11 KiB
C
323 lines
11 KiB
C
/** @file
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Copyright (c) 2006, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "idebus.h"
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CHAR16 *OptionString[4] = {
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L"Enable Primary Master (Y/N)? -->",
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L"Enable Primary Slave (Y/N)? -->",
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L"Enable Secondary Master (Y/N)? -->",
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L"Enable Secondary Slave (Y/N)? -->"
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};
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//
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// EFI Driver Configuration Protocol
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//
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EFI_DRIVER_CONFIGURATION_PROTOCOL gIDEBusDriverConfiguration = {
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IDEBusDriverConfigurationSetOptions,
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IDEBusDriverConfigurationOptionsValid,
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IDEBusDriverConfigurationForceDefaults,
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"eng"
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};
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/**
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TODO: Add function description
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@retval EFI_ABORTED TODO: Add description for return value
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@retval EFI_SUCCESS TODO: Add description for return value
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@retval EFI_NOT_FOUND TODO: Add description for return value
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**/
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STATIC
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EFI_STATUS
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GetResponse (
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VOID
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)
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{
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EFI_STATUS Status;
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EFI_INPUT_KEY Key;
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while (TRUE) {
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Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
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if (!EFI_ERROR (Status)) {
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if (Key.ScanCode == SCAN_ESC) {
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return EFI_ABORTED;
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}
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switch (Key.UnicodeChar) {
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//
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// fall through
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//
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case L'y':
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case L'Y':
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gST->ConOut->OutputString (gST->ConOut, L"Y\n");
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return EFI_SUCCESS;
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//
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// fall through
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//
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case L'n':
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case L'N':
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gST->ConOut->OutputString (gST->ConOut, L"N\n");
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return EFI_NOT_FOUND;
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}
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}
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}
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}
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/**
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Allows the user to set controller specific options for a controller that a
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driver is currently managing.
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@param This A pointer to the EFI_DRIVER_CONFIGURATION_ PROTOCOL
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instance.
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@param ControllerHandle The handle of the controller to set options on.
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@param ChildHandle The handle of the child controller to set options on.
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This is an optional parameter that may be NULL.
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It will be NULL for device drivers, and for a bus drivers
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that wish to set options for the bus controller.
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It will not be NULL for a bus driver that wishes to set
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options for one of its child controllers.
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@param Language A pointer to a three character ISO 639-2 language
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identifier. This is the language of the user interface
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that should be presented to the user, and it must match
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one of the languages specified in SupportedLanguages.
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The number of languages supported by a driver is up to
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the driver writer.
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@param ActionRequired A pointer to the action that the calling agent is
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required to perform when this function returns.
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See "Related Definitions" for a list of the actions that
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the calling agent is required to perform prior to
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accessing ControllerHandle again.
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@retval EFI_SUCCESS The driver specified by This successfully set the
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configuration options for the controller specified
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by ControllerHandle..
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@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
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@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a
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valid EFI_HANDLE.
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@retval EFI_INVALID_PARAMETER ActionRequired is NULL.
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@retval EFI_UNSUPPORTED The driver specified by This does not support
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setting configuration options for the controller
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specified by ControllerHandle and ChildHandle.
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@retval EFI_UNSUPPORTED The driver specified by This does not support the
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language specified by Language.
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@retval EFI_DEVICE_ERROR A device error occurred while attempt to set the
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configuration options for the controller specified
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by ControllerHandle and ChildHandle.
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@retval EFI_OUT_RESOURCES There are not enough resources available to set the
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configuration options for the controller specified
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by ControllerHandle and ChildHandle.
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**/
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EFI_STATUS
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IDEBusDriverConfigurationSetOptions (
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IN EFI_DRIVER_CONFIGURATION_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_HANDLE ChildHandle OPTIONAL,
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IN CHAR8 *Language,
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OUT EFI_DRIVER_CONFIGURATION_ACTION_REQUIRED *ActionRequired
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)
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{
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EFI_STATUS Status;
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UINT8 Value;
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UINT8 NewValue;
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UINTN DataSize;
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UINTN Index;
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if (ChildHandle != NULL) {
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return EFI_UNSUPPORTED;
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}
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*ActionRequired = EfiDriverConfigurationActionNone;
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DataSize = sizeof (Value);
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Status = gRT->GetVariable (
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L"Configuration",
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&gEfiCallerIdGuid,
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NULL,
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&DataSize,
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&Value
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);
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gST->ConOut->OutputString (gST->ConOut, L"IDE Bus Driver Configuration\n");
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gST->ConOut->OutputString (gST->ConOut, L"===============================\n");
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NewValue = 0;
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for (Index = 0; Index < 4; Index++) {
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gST->ConOut->OutputString (gST->ConOut, OptionString[Index]);
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Status = GetResponse ();
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if (Status == EFI_ABORTED) {
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return EFI_SUCCESS;
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}
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if (!EFI_ERROR (Status)) {
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NewValue = (UINT8) (NewValue | (1 << Index));
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}
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}
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if (EFI_ERROR (Status) || (NewValue != Value)) {
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gRT->SetVariable (
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L"Configuration",
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&gEfiCallerIdGuid,
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EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
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sizeof (NewValue),
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&NewValue
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);
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*ActionRequired = EfiDriverConfigurationActionRestartController;
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} else {
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*ActionRequired = EfiDriverConfigurationActionNone;
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}
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return EFI_SUCCESS;
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}
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/**
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Tests to see if a controller's current configuration options are valid.
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@param This A pointer to the EFI_DRIVER_CONFIGURATION_PROTOCOL
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instance.
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@param ControllerHandle The handle of the controller to test if it's current
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configuration options are valid.
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@param ChildHandle The handle of the child controller to test if it's
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current
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configuration options are valid. This is an optional
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parameter that may be NULL. It will be NULL for device
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drivers. It will also be NULL for a bus drivers that
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wish to test the configuration options for the bus
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controller. It will not be NULL for a bus driver that
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wishes to test configuration options for one of
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its child controllers.
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@retval EFI_SUCCESS The controller specified by ControllerHandle and
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ChildHandle that is being managed by the driver
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specified by This has a valid set of configuration
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options.
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@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
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@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
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EFI_HANDLE.
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@retval EFI_UNSUPPORTED The driver specified by This is not currently
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managing the controller specified by
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ControllerHandle and ChildHandle.
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@retval EFI_DEVICE_ERROR The controller specified by ControllerHandle and
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ChildHandle that is being managed by the driver
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specified by This has an invalid set of
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configuration options.
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**/
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EFI_STATUS
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IDEBusDriverConfigurationOptionsValid (
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IN EFI_DRIVER_CONFIGURATION_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_HANDLE ChildHandle OPTIONAL
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)
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{
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EFI_STATUS Status;
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UINT8 Value;
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UINTN DataSize;
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if (ChildHandle != NULL) {
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return EFI_UNSUPPORTED;
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}
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DataSize = sizeof (Value);
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Status = gRT->GetVariable (
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L"Configuration",
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&gEfiCallerIdGuid,
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NULL,
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&DataSize,
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&Value
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);
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if (EFI_ERROR (Status) || Value > 0x0f) {
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return EFI_DEVICE_ERROR;
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}
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return EFI_SUCCESS;
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}
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/**
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Forces a driver to set the default configuration options for a controller.
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@param This A pointer to the EFI_DRIVER_CONFIGURATION_ PROTOCOL
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instance.
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@param ControllerHandle The handle of the controller to force default
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configuration options on.
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@param ChildHandle The handle of the child controller to force default
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configuration options on This is an optional parameter
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that may be NULL. It will be NULL for device drivers.
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It will also be NULL for a bus drivers that wish to
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force default configuration options for the bus
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controller. It will not be NULL for a bus driver that
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wishes to force default configuration options for one
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of its child controllers.
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@param DefaultType The type of default configuration options to force on
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the controller specified by ControllerHandle and
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ChildHandle. See Table 9-1 for legal values.
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A DefaultType of 0x00000000 must be supported
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by this protocol.
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@param ActionRequired A pointer to the action that the calling agent
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is required to perform when this function returns.
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@retval EFI_SUCCESS The driver specified by This successfully forced
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the default configuration options on the
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controller specified by ControllerHandle and
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ChildHandle.
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@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
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@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a
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valid EFI_HANDLE.
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@retval EFI_INVALID_PARAMETER ActionRequired is NULL.
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@retval EFI_UNSUPPORTED The driver specified by This does not support
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forcing the default configuration options on
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the controller specified by ControllerHandle
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and ChildHandle.
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@retval EFI_UNSUPPORTED The driver specified by This does not support
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the configuration type specified by DefaultType.
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@retval EFI_DEVICE_ERROR A device error occurred while attempt to force
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the default configuration options on the controller
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specified by ControllerHandle and ChildHandle.
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@retval EFI_OUT_RESOURCES There are not enough resources available to force
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the default configuration options on the controller
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specified by ControllerHandle and ChildHandle.
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**/
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EFI_STATUS
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IDEBusDriverConfigurationForceDefaults (
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IN EFI_DRIVER_CONFIGURATION_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_HANDLE ChildHandle OPTIONAL,
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IN UINT32 DefaultType,
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OUT EFI_DRIVER_CONFIGURATION_ACTION_REQUIRED *ActionRequired
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)
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{
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UINT8 Value;
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if (ChildHandle != NULL) {
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return EFI_UNSUPPORTED;
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}
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Value = 0x0f;
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gRT->SetVariable (
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L"Configuration",
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&gEfiCallerIdGuid,
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EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
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sizeof (Value),
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&Value
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);
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*ActionRequired = EfiDriverConfigurationActionRestartController;
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return EFI_SUCCESS;
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}
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