mirror of https://github.com/acidanthera/audk.git
440 lines
17 KiB
C
440 lines
17 KiB
C
/** @file
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Header file for Console Platfrom DXE Driver.
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Copyright (c) 2006 - 2008, Intel Corporation. <BR>
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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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#ifndef _CON_PLATFORM_H_
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#define _CON_PLATFORM_H_
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#include <PiDxe.h>
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#include <Protocol/SimpleTextOut.h>
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#include <Protocol/DevicePath.h>
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#include <Protocol/SimpleTextIn.h>
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#include <Guid/GlobalVariable.h>
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#include <Guid/ConsoleInDevice.h>
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#include <Guid/StandardErrorDevice.h>
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#include <Guid/ConsoleOutDevice.h>
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#include <Guid/HotPlugDevice.h>
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#include <Library/DebugLib.h>
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#include <Library/UefiDriverEntryPoint.h>
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#include <Library/UefiLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiRuntimeServicesTableLib.h>
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#include <Library/DevicePathLib.h>
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#include <Library/MemoryAllocationLib.h>
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//
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// Driver Binding Externs
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//
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extern EFI_DRIVER_BINDING_PROTOCOL gConPlatformTextInDriverBinding;
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extern EFI_COMPONENT_NAME_PROTOCOL gConPlatformComponentName;
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extern EFI_COMPONENT_NAME2_PROTOCOL gConPlatformComponentName2;
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extern EFI_DRIVER_BINDING_PROTOCOL gConPlatformTextOutDriverBinding;
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extern EFI_COMPONENT_NAME_PROTOCOL gConPlatformComponentName;
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extern EFI_COMPONENT_NAME2_PROTOCOL gConPlatformComponentName2;
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typedef enum {
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CHECK,
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APPEND,
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DELETE
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} CONPLATFORM_VAR_OPERATION;
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/**
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Test to see if specific Protocol could be supported on the ControllerHandle.
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@param This Protocol instance pointer.
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@param ControllerHandle Handle of device to test.
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@param RemainingDevicePath Optional parameter use to pick a specific child
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device to start.
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@param ProtocolGuid The specfic protocol.
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@retval EFI_SUCCESS This driver supports this device
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@retval other This driver does not support this device
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**/
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EFI_STATUS
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ConPlatformDriverBindingSupported (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath,
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IN EFI_GUID *ProtocolGuid
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);
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/**
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Test to see if EFI Text In Protocol could be supported on the ControllerHandle.
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@param This Protocol instance pointer.
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@param ControllerHandle Handle of device to test.
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@param RemainingDevicePath Optional parameter use to pick a specific child
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device to start.
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@retval EFI_SUCCESS This driver supports this device
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@retval other This driver does not support this device
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**/
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EFI_STATUS
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EFIAPI
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ConPlatformTextInDriverBindingSupported (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Handle,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
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);
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/**
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Test to see if EFI Text Out Protocol could be supported on the ControllerHandle.
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@param This Protocol instance pointer.
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@param ControllerHandle Handle of device to test.
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@param RemainingDevicePath Optional parameter use to pick a specific child
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device to start.
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@retval EFI_SUCCESS This driver supports this device
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@retval other This driver does not support this device
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**/
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EFI_STATUS
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EFIAPI
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ConPlatformTextOutDriverBindingSupported (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Handle,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
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);
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/**
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Start this driver on ControllerHandle by opening Simple Text In protocol,
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reading Device Path, and installing Console In Devcice GUID on ControllerHandle.
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If this devcie is not one hot-plug devce, append its device path into the
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console environment variables ConInDev.
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@param This Protocol instance pointer.
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@param ControllerHandle Handle of device to bind driver to
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@param RemainingDevicePath Optional parameter use to pick a specific child
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device to start.
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@retval EFI_SUCCESS This driver is added to ControllerHandle
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@retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle
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@retval other This driver does not support this device
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**/
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EFI_STATUS
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EFIAPI
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ConPlatformTextInDriverBindingStart (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Handle,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
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);
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/**
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Start this driver on ControllerHandle by opening Simple Text Out protocol,
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reading Device Path, and installing Console Out Devcice GUID, Standard Error
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Device GUID on ControllerHandle.
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If this devcie is not one hot-plug devce, append its device path into the
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console environment variables ConOutDev, StdErrDev.
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@param This Protocol instance pointer.
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@param ControllerHandle Handle of device to bind driver to
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@param RemainingDevicePath Optional parameter use to pick a specific child
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device to start.
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@retval EFI_SUCCESS This driver is added to ControllerHandle
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@retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle
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@retval other This driver does not support this device
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**/
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EFI_STATUS
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EFIAPI
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ConPlatformTextOutDriverBindingStart (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Handle,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
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);
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/**
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Stop this driver on ControllerHandle by removing Console In Devcice GUID
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and closing the Simple Text In protocol on ControllerHandle.
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@param This Protocol instance pointer.
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@param ControllerHandle Handle of device to stop driver on
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@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
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children is zero stop the entire bus driver.
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@param ChildHandleBuffer List of Child Handles to Stop.
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@retval EFI_SUCCESS This driver is removed ControllerHandle
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@retval other This driver was not removed from this device
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**/
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EFI_STATUS
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EFIAPI
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ConPlatformTextInDriverBindingStop (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Handle,
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IN UINTN NumberOfChildren,
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IN EFI_HANDLE *ChildHandleBuffer
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);
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/**
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Stop this driver on ControllerHandle by removing Console Out Devcice GUID
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and closing the Simple Text Out protocol on ControllerHandle.
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@param This Protocol instance pointer.
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@param ControllerHandle Handle of device to stop driver on
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@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
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children is zero stop the entire bus driver.
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@param ChildHandleBuffer List of Child Handles to Stop.
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@retval EFI_SUCCESS This driver is removed ControllerHandle
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@retval other This driver was not removed from this device
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**/
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EFI_STATUS
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EFIAPI
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ConPlatformTextOutDriverBindingStop (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Handle,
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IN UINTN NumberOfChildren,
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IN EFI_HANDLE *ChildHandleBuffer
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);
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/**
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Uninstall the specified protocol.
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@param This Protocol instance pointer.
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@param Handle Handle of device to uninstall protocol on.
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@param ProtocolGuid The specified protocol need to be uninstalled.
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@return None.
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**/
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VOID
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ConPlatformUnInstallProtocol (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Handle,
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IN EFI_GUID *ProtocolGuid
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);
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/**
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Read the EFI variable (Name) and return a dynamically allocated
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buffer, and the size of the buffer. On failure return NULL.
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@param Name String part of EFI variable name
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@return Dynamically allocated memory that contains a copy of the EFI variable.
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Caller is repsoncible freeing the buffer. Return NULL means Variable
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was not read.
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**/
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VOID *
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ConPlatformGetVariable (
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IN CHAR16 *Name
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);
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/**
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Function compares a device path data structure to that of all the nodes of a
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second device path instance.
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@param Multi A pointer to a multi-instance device path data structure.
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@param Single A pointer to a single-instance device path data structure.
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@param NewDevicePath If Delete is TRUE, this parameter must not be null, and it
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points to the remaining device path data structure.
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(remaining device path = Multi - Single.)
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@param Delete If TRUE, means removing Single from Multi.
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If FALSE, the routine just check whether Single matches
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with any instance in Multi.
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@retval EFI_SUCCESS If the Single is contained within Multi.
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@retval EFI_NOT_FOUND If the Single is not contained within Multi.
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**/
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EFI_STATUS
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ConPlatformMatchDevicePaths (
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IN EFI_DEVICE_PATH_PROTOCOL *Multi,
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IN EFI_DEVICE_PATH_PROTOCOL *Single,
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IN EFI_DEVICE_PATH_PROTOCOL **NewDevicePath OPTIONAL,
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IN BOOLEAN Delete
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);
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/**
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Update console environment variables.
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@param VariableName Console environment variables, ConOutDev, ConInDev
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StdErrDev, ConIn or ConOut.
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@param DevicePath Console devcie's device path.
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@param Operation Variable operations, such as APPEND or DELETE.
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@retval EFI_SUCCESS Variable operates successfully.
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@retval EFI_OUT_OF_RESOURCES If variable cannot be appended.
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@retval other Variable updating failed.
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**/
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EFI_STATUS
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ConPlatformUpdateDeviceVariable (
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IN CHAR16 *VariableName,
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IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
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IN CONPLATFORM_VAR_OPERATION Operation
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);
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/**
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Check if the device is one hot-plug supported.
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@param DriverBindingHandle Protocol instance pointer.
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@param ControllerHandle Handle of device to check.
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@retval TRUE The devcie is a hot-plug device
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@retval FALSE The devcie is not a hot-plug device.
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**/
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BOOLEAN
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IsHotPlugDevice (
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EFI_HANDLE DriverBindingHandle,
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EFI_HANDLE ControllerHandle
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);
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//
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// EFI Component Name Functions
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//
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/**
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Retrieves a Unicode string that is the user readable name of the driver.
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This function retrieves the user readable name of a driver in the form of a
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Unicode string. If the driver specified by This has a user readable name in
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the language specified by Language, then a pointer to the driver name is
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returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
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by This does not support the language specified by Language,
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then EFI_UNSUPPORTED is returned.
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@param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
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EFI_COMPONENT_NAME_PROTOCOL instance.
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@param Language[in] A pointer to a Null-terminated ASCII string
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array indicating the language. This is the
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language of the driver name that the caller is
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requesting, and it must match one of the
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languages specified in SupportedLanguages. The
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number of languages supported by a driver is up
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to the driver writer. Language is specified
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in RFC 3066 or ISO 639-2 language code format.
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@param DriverName[out] A pointer to the Unicode string to return.
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This Unicode string is the name of the
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driver specified by This in the language
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specified by Language.
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@retval EFI_SUCCESS The Unicode string for the Driver specified by
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This and the language specified by Language was
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returned in DriverName.
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@retval EFI_INVALID_PARAMETER Language is NULL.
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@retval EFI_INVALID_PARAMETER DriverName is NULL.
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@retval EFI_UNSUPPORTED The driver specified by This does not support
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the language specified by Language.
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**/
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EFI_STATUS
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EFIAPI
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ConPlatformComponentNameGetDriverName (
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IN EFI_COMPONENT_NAME_PROTOCOL *This,
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IN CHAR8 *Language,
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OUT CHAR16 **DriverName
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);
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/**
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Retrieves a Unicode string that is the user readable name of the controller
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that is being managed by a driver.
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This function retrieves the user readable name of the controller specified by
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ControllerHandle and ChildHandle in the form of a Unicode string. If the
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driver specified by This has a user readable name in the language specified by
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Language, then a pointer to the controller name is returned in ControllerName,
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and EFI_SUCCESS is returned. If the driver specified by This is not currently
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managing the controller specified by ControllerHandle and ChildHandle,
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then EFI_UNSUPPORTED is returned. If the driver specified by This does not
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support the language specified by Language, then EFI_UNSUPPORTED is returned.
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@param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
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EFI_COMPONENT_NAME_PROTOCOL instance.
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@param ControllerHandle[in] The handle of a controller that the driver
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specified by This is managing. This handle
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specifies the controller whose name is to be
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returned.
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@param ChildHandle[in] The handle of the child controller to retrieve
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the name of. This is an optional parameter that
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may be NULL. It will be NULL for device
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drivers. It will also be NULL for a bus drivers
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that wish to retrieve the name of the bus
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controller. It will not be NULL for a bus
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driver that wishes to retrieve the name of a
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child controller.
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@param Language[in] A pointer to a Null-terminated ASCII string
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array indicating the language. This is the
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language of the driver name that the caller is
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requesting, and it must match one of the
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languages specified in SupportedLanguages. The
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number of languages supported by a driver is up
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to the driver writer. Language is specified in
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RFC 3066 or ISO 639-2 language code format.
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@param ControllerName[out] A pointer to the Unicode string to return.
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This Unicode string is the name of the
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controller specified by ControllerHandle and
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ChildHandle in the language specified by
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Language from the point of view of the driver
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specified by This.
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@retval EFI_SUCCESS The Unicode string for the user readable name in
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the language specified by Language for the
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driver specified by This was returned in
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DriverName.
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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_INVALID_PARAMETER Language is NULL.
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@retval EFI_INVALID_PARAMETER ControllerName is NULL.
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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_UNSUPPORTED The driver specified by This does not support
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the language specified by Language.
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**/
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EFI_STATUS
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EFIAPI
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ConPlatformComponentNameGetControllerName (
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IN EFI_COMPONENT_NAME_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 CHAR16 **ControllerName
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);
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#endif
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