From af1a266670d040d2f4083ff309d732d648afba2a Mon Sep 17 00:00:00 2001
From: Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com>
Date: Tue, 10 Oct 2023 14:33:42 +0000
Subject: Add submodule dependency files
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
---
.../Universal/Console/TerminalDxe/Terminal.h | 1458 ++++++++++++++++++++
1 file changed, 1458 insertions(+)
create mode 100644 roms/edk2/MdeModulePkg/Universal/Console/TerminalDxe/Terminal.h
(limited to 'roms/edk2/MdeModulePkg/Universal/Console/TerminalDxe/Terminal.h')
diff --git a/roms/edk2/MdeModulePkg/Universal/Console/TerminalDxe/Terminal.h b/roms/edk2/MdeModulePkg/Universal/Console/TerminalDxe/Terminal.h
new file mode 100644
index 000000000..378ace13c
--- /dev/null
+++ b/roms/edk2/MdeModulePkg/Universal/Console/TerminalDxe/Terminal.h
@@ -0,0 +1,1458 @@
+/** @file
+ Header file for Terminal driver.
+
+Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
+Copyright (C) 2016 Silicon Graphics, Inc. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef _TERMINAL_H_
+#define _TERMINAL_H_
+
+
+#include <Uefi.h>
+
+#include <Guid/GlobalVariable.h>
+#include <Guid/PcAnsi.h>
+#include <Guid/TtyTerm.h>
+#include <Guid/StatusCodeDataTypeVariable.h>
+
+#include <Protocol/SimpleTextOut.h>
+#include <Protocol/SerialIo.h>
+#include <Protocol/DevicePath.h>
+#include <Protocol/SimpleTextIn.h>
+#include <Protocol/SimpleTextInEx.h>
+
+#include <Library/DebugLib.h>
+#include <Library/UefiDriverEntryPoint.h>
+#include <Library/UefiLib.h>
+#include <Library/ReportStatusCodeLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/PcdLib.h>
+#include <Library/BaseLib.h>
+
+
+#define RAW_FIFO_MAX_NUMBER 256
+#define FIFO_MAX_NUMBER 128
+
+typedef struct {
+ UINT8 Head;
+ UINT8 Tail;
+ UINT8 Data[RAW_FIFO_MAX_NUMBER + 1];
+} RAW_DATA_FIFO;
+
+typedef struct {
+ UINT8 Head;
+ UINT8 Tail;
+ UINT16 Data[FIFO_MAX_NUMBER + 1];
+} UNICODE_FIFO;
+
+typedef struct {
+ UINT8 Head;
+ UINT8 Tail;
+ EFI_INPUT_KEY Data[FIFO_MAX_NUMBER + 1];
+} EFI_KEY_FIFO;
+
+typedef struct {
+ UINTN Columns;
+ UINTN Rows;
+} TERMINAL_CONSOLE_MODE_DATA;
+
+#define KEYBOARD_TIMER_INTERVAL 200000 // 0.02s
+
+#define TERMINAL_DEV_SIGNATURE SIGNATURE_32 ('t', 'm', 'n', 'l')
+
+#define TERMINAL_CONSOLE_IN_EX_NOTIFY_SIGNATURE SIGNATURE_32 ('t', 'm', 'e', 'n')
+
+typedef struct _TERMINAL_CONSOLE_IN_EX_NOTIFY {
+ UINTN Signature;
+ EFI_KEY_DATA KeyData;
+ EFI_KEY_NOTIFY_FUNCTION KeyNotificationFn;
+ LIST_ENTRY NotifyEntry;
+} TERMINAL_CONSOLE_IN_EX_NOTIFY;
+
+typedef enum {
+ TerminalTypePcAnsi,
+ TerminalTypeVt100,
+ TerminalTypeVt100Plus,
+ TerminalTypeVtUtf8,
+ TerminalTypeTtyTerm,
+ TerminalTypeLinux,
+ TerminalTypeXtermR6,
+ TerminalTypeVt400,
+ TerminalTypeSCO
+} TERMINAL_TYPE;
+
+typedef struct {
+ UINTN Signature;
+ EFI_HANDLE Handle;
+ TERMINAL_TYPE TerminalType;
+ EFI_SERIAL_IO_PROTOCOL *SerialIo;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+ EFI_SIMPLE_TEXT_INPUT_PROTOCOL SimpleInput;
+ EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL SimpleTextOutput;
+ EFI_SIMPLE_TEXT_OUTPUT_MODE SimpleTextOutputMode;
+ TERMINAL_CONSOLE_MODE_DATA *TerminalConsoleModeData;
+ UINTN SerialInTimeOut;
+ RAW_DATA_FIFO *RawFiFo;
+ UNICODE_FIFO *UnicodeFiFo;
+ EFI_KEY_FIFO *EfiKeyFiFo;
+ EFI_KEY_FIFO *EfiKeyFiFoForNotify;
+ EFI_UNICODE_STRING_TABLE *ControllerNameTable;
+ EFI_EVENT TimerEvent;
+ EFI_EVENT TwoSecondTimeOut;
+ UINT32 InputState;
+ UINT32 ResetState;
+ UINT16 TtyEscapeStr[3];
+ INTN TtyEscapeIndex;
+
+ //
+ // Esc could not be output to the screen by user,
+ // but the terminal driver need to output it to
+ // the terminal emulation software to send control sequence.
+ // This boolean is used by the terminal driver only
+ // to indicate whether the Esc could be sent or not.
+ //
+ BOOLEAN OutputEscChar;
+ EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL SimpleInputEx;
+ LIST_ENTRY NotifyList;
+ EFI_EVENT KeyNotifyProcessEvent;
+} TERMINAL_DEV;
+
+#define INPUT_STATE_DEFAULT 0x00
+#define INPUT_STATE_ESC 0x01
+#define INPUT_STATE_CSI 0x02
+#define INPUT_STATE_LEFTOPENBRACKET 0x04
+#define INPUT_STATE_O 0x08
+#define INPUT_STATE_2 0x10
+#define INPUT_STATE_LEFTOPENBRACKET_TTY 0x20
+#define INPUT_STATE_1 0x40
+#define INPUT_STATE_LEFTOPENBRACKET_2ND 0x80
+
+#define RESET_STATE_DEFAULT 0x00
+#define RESET_STATE_ESC_R 0x01
+#define RESET_STATE_ESC_R_ESC_R 0x02
+
+#define TERMINAL_CON_IN_DEV_FROM_THIS(a) CR (a, TERMINAL_DEV, SimpleInput, TERMINAL_DEV_SIGNATURE)
+#define TERMINAL_CON_OUT_DEV_FROM_THIS(a) CR (a, TERMINAL_DEV, SimpleTextOutput, TERMINAL_DEV_SIGNATURE)
+#define TERMINAL_CON_IN_EX_DEV_FROM_THIS(a) CR (a, TERMINAL_DEV, SimpleInputEx, TERMINAL_DEV_SIGNATURE)
+
+typedef union {
+ UINT8 Utf8_1;
+ UINT8 Utf8_2[2];
+ UINT8 Utf8_3[3];
+} UTF8_CHAR;
+
+#define LEFTOPENBRACKET 0x5b // '['
+#define ACAP 0x41
+#define BCAP 0x42
+#define CCAP 0x43
+#define DCAP 0x44
+
+#define BACKSPACE 8
+#define ESC 27
+#define CSI 0x9B
+#define DEL 127
+#define BRIGHT_CONTROL_OFFSET 2
+#define FOREGROUND_CONTROL_OFFSET 6
+#define BACKGROUND_CONTROL_OFFSET 11
+#define ROW_OFFSET 2
+#define COLUMN_OFFSET 5
+#define FW_BACK_OFFSET 2
+
+typedef struct {
+ UINT16 Unicode;
+ CHAR8 PcAnsi;
+ CHAR8 Ascii;
+} UNICODE_TO_CHAR;
+
+//
+// Global Variables
+//
+extern EFI_DRIVER_BINDING_PROTOCOL gTerminalDriverBinding;
+extern EFI_COMPONENT_NAME_PROTOCOL gTerminalComponentName;
+extern EFI_COMPONENT_NAME2_PROTOCOL gTerminalComponentName2;
+
+/**
+ The user Entry Point for module Terminal. The user code starts with this function.
+
+ @param[in] ImageHandle The firmware allocated handle for the EFI image.
+ @param[in] SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The entry point is executed successfully.
+ @retval other Some error occurs when executing this entry point.
+
+**/
+EFI_STATUS
+EFIAPI
+InitializeTerminal (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ );
+
+/**
+ Implements EFI_SIMPLE_TEXT_INPUT_PROTOCOL.Reset().
+ This driver only perform dependent serial device reset regardless of
+ the value of ExtendeVerification
+
+ @param This Indicates the calling context.
+ @param ExtendedVerification Skip by this driver.
+
+ @retval EFI_SUCCESS The reset operation succeeds.
+ @retval EFI_DEVICE_ERROR The dependent serial port reset fails.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalConInReset (
+ IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
+ IN BOOLEAN ExtendedVerification
+ );
+
+
+/**
+ Implements EFI_SIMPLE_TEXT_INPUT_PROTOCOL.ReadKeyStroke().
+
+ @param This Indicates the calling context.
+ @param Key A pointer to a buffer that is filled in with the
+ keystroke information for the key that was sent
+ from terminal.
+
+ @retval EFI_SUCCESS The keystroke information is returned successfully.
+ @retval EFI_NOT_READY There is no keystroke data available.
+ @retval EFI_DEVICE_ERROR The dependent serial device encounters error.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalConInReadKeyStroke (
+ IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
+ OUT EFI_INPUT_KEY *Key
+ );
+
+/**
+ Check if the key already has been registered.
+
+ @param RegsiteredData A pointer to a buffer that is filled in with the
+ keystroke state data for the key that was
+ registered.
+ @param InputData A pointer to a buffer that is filled in with the
+ keystroke state data for the key that was
+ pressed.
+
+ @retval TRUE Key be pressed matches a registered key.
+ @retval FALSE Match failed.
+
+**/
+BOOLEAN
+IsKeyRegistered (
+ IN EFI_KEY_DATA *RegsiteredData,
+ IN EFI_KEY_DATA *InputData
+ );
+
+/**
+ Event notification function for EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL.WaitForKeyEx event
+ Signal the event if there is key available
+
+ @param Event Indicates the event that invoke this function.
+ @param Context Indicates the calling context.
+
+**/
+VOID
+EFIAPI
+TerminalConInWaitForKeyEx (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ );
+
+//
+// Simple Text Input Ex protocol prototypes
+//
+
+/**
+ Reset the input device and optionally run diagnostics
+
+ @param This Protocol instance pointer.
+ @param ExtendedVerification Driver may perform diagnostics on reset.
+
+ @retval EFI_SUCCESS The device was reset.
+ @retval EFI_DEVICE_ERROR The device is not functioning properly and could
+ not be reset.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalConInResetEx (
+ IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
+ IN BOOLEAN ExtendedVerification
+ );
+
+/**
+ Reads the next keystroke from the input device. The WaitForKey Event can
+ be used to test for existence of a keystroke via WaitForEvent () call.
+
+ @param This Protocol instance pointer.
+ @param KeyData A pointer to a buffer that is filled in with the
+ keystroke state data for the key that was
+ pressed.
+
+ @retval EFI_SUCCESS The keystroke information was returned.
+ @retval EFI_NOT_READY There was no keystroke data available.
+ @retval EFI_DEVICE_ERROR The keystroke information was not returned due
+ to hardware errors.
+ @retval EFI_INVALID_PARAMETER KeyData is NULL.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalConInReadKeyStrokeEx (
+ IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
+ OUT EFI_KEY_DATA *KeyData
+ );
+
+/**
+ Set certain state for the input device.
+
+ @param This Protocol instance pointer.
+ @param KeyToggleState A pointer to the EFI_KEY_TOGGLE_STATE to set the
+ state for the input device.
+
+ @retval EFI_SUCCESS The device state was set successfully.
+ @retval EFI_DEVICE_ERROR The device is not functioning correctly and
+ could not have the setting adjusted.
+ @retval EFI_UNSUPPORTED The device does not have the ability to set its
+ state.
+ @retval EFI_INVALID_PARAMETER KeyToggleState is NULL.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalConInSetState (
+ IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
+ IN EFI_KEY_TOGGLE_STATE *KeyToggleState
+ );
+
+/**
+ Register a notification function for a particular keystroke for the input device.
+
+ @param This Protocol instance pointer.
+ @param KeyData A pointer to a buffer that is filled in with the
+ keystroke information data for the key that was
+ pressed. If KeyData.Key, KeyData.KeyState.KeyToggleState
+ and KeyData.KeyState.KeyShiftState are 0, then any incomplete
+ keystroke will trigger a notification of the KeyNotificationFunction.
+ @param KeyNotificationFunction Points to the function to be called when the key
+ sequence is typed specified by KeyData. This notification function
+ should be called at <=TPL_CALLBACK.
+ @param NotifyHandle Points to the unique handle assigned to the
+ registered notification.
+
+ @retval EFI_SUCCESS The notification function was registered
+ successfully.
+ @retval EFI_OUT_OF_RESOURCES Unable to allocate resources for necesssary data
+ structures.
+ @retval EFI_INVALID_PARAMETER KeyData or NotifyHandle is NULL.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalConInRegisterKeyNotify (
+ IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
+ IN EFI_KEY_DATA *KeyData,
+ IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction,
+ OUT VOID **NotifyHandle
+ );
+
+/**
+ Remove a registered notification function from a particular keystroke.
+
+ @param This Protocol instance pointer.
+ @param NotificationHandle The handle of the notification function being
+ unregistered.
+
+ @retval EFI_SUCCESS The notification function was unregistered
+ successfully.
+ @retval EFI_INVALID_PARAMETER The NotificationHandle is invalid.
+ @retval EFI_NOT_FOUND Can not find the matching entry in database.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalConInUnregisterKeyNotify (
+ IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
+ IN VOID *NotificationHandle
+ );
+
+/**
+ Event notification function for EFI_SIMPLE_TEXT_INPUT_PROTOCOL.WaitForKey event
+ Signal the event if there is key available
+
+ @param Event Indicates the event that invoke this function.
+ @param Context Indicates the calling context.
+
+**/
+VOID
+EFIAPI
+TerminalConInWaitForKey (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ );
+
+/**
+ Implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.Reset().
+ If ExtendeVerification is TRUE, then perform dependent serial device reset,
+ and set display mode to mode 0.
+ If ExtendedVerification is FALSE, only set display mode to mode 0.
+
+ @param This Indicates the calling context.
+ @param ExtendedVerification Indicates that the driver may perform a more
+ exhaustive verification operation of the device
+ during reset.
+
+ @retval EFI_SUCCESS The reset operation succeeds.
+ @retval EFI_DEVICE_ERROR The terminal is not functioning correctly or the serial port reset fails.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalConOutReset (
+ IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
+ IN BOOLEAN ExtendedVerification
+ );
+
+/**
+ Implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString().
+ The Unicode string will be converted to terminal expressible data stream
+ and send to terminal via serial port.
+
+ @param This Indicates the calling context.
+ @param WString The Null-terminated Unicode string to be displayed
+ on the terminal screen.
+
+ @retval EFI_SUCCESS The string is output successfully.
+ @retval EFI_DEVICE_ERROR The serial port fails to send the string out.
+ @retval EFI_WARN_UNKNOWN_GLYPH Indicates that some of the characters in the Unicode string could not
+ be rendered and are skipped.
+ @retval EFI_UNSUPPORTED If current display mode is out of range.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalConOutOutputString (
+ IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
+ IN CHAR16 *WString
+ );
+
+/**
+ Implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.TestString().
+ If one of the characters in the *Wstring is
+ neither valid Unicode drawing characters,
+ not ASCII code, then this function will return
+ EFI_UNSUPPORTED.
+
+ @param This Indicates the calling context.
+ @param WString The Null-terminated Unicode string to be tested.
+
+ @retval EFI_SUCCESS The terminal is capable of rendering the output string.
+ @retval EFI_UNSUPPORTED Some of the characters in the Unicode string cannot be rendered.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalConOutTestString (
+ IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
+ IN CHAR16 *WString
+ );
+
+/**
+ Implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.QueryMode().
+ It returns information for an available text mode
+ that the terminal supports.
+ In this driver, we support text mode 80x25 (mode 0),
+ 80x50 (mode 1), 100x31 (mode 2).
+
+ @param This Indicates the calling context.
+ @param ModeNumber The mode number to return information on.
+ @param Columns The returned columns of the requested mode.
+ @param Rows The returned rows of the requested mode.
+
+ @retval EFI_SUCCESS The requested mode information is returned.
+ @retval EFI_UNSUPPORTED The mode number is not valid.
+ @retval EFI_DEVICE_ERROR
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalConOutQueryMode (
+ IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
+ IN UINTN ModeNumber,
+ OUT UINTN *Columns,
+ OUT UINTN *Rows
+ );
+
+/**
+ Implements EFI_SIMPLE_TEXT_OUT.SetMode().
+ Set the terminal to a specified display mode.
+ In this driver, we only support mode 0.
+
+ @param This Indicates the calling context.
+ @param ModeNumber The text mode to set.
+
+ @retval EFI_SUCCESS The requested text mode is set.
+ @retval EFI_DEVICE_ERROR The requested text mode cannot be set
+ because of serial device error.
+ @retval EFI_UNSUPPORTED The text mode number is not valid.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalConOutSetMode (
+ IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
+ IN UINTN ModeNumber
+ );
+
+/**
+ Implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.SetAttribute().
+
+ @param This Indicates the calling context.
+ @param Attribute The attribute to set. Only bit0..6 are valid, all other bits
+ are undefined and must be zero.
+
+ @retval EFI_SUCCESS The requested attribute is set.
+ @retval EFI_DEVICE_ERROR The requested attribute cannot be set due to serial port error.
+ @retval EFI_UNSUPPORTED The attribute requested is not defined by EFI spec.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalConOutSetAttribute (
+ IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
+ IN UINTN Attribute
+ );
+
+/**
+ Implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.ClearScreen().
+ It clears the ANSI terminal's display to the
+ currently selected background color.
+
+ @param This Indicates the calling context.
+
+ @retval EFI_SUCCESS The operation completed successfully.
+ @retval EFI_DEVICE_ERROR The terminal screen cannot be cleared due to serial port error.
+ @retval EFI_UNSUPPORTED The terminal is not in a valid display mode.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalConOutClearScreen (
+ IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This
+ );
+
+/**
+ Implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.SetCursorPosition().
+
+ @param This Indicates the calling context.
+ @param Column The row to set cursor to.
+ @param Row The column to set cursor to.
+
+ @retval EFI_SUCCESS The operation completed successfully.
+ @retval EFI_DEVICE_ERROR The request fails due to serial port error.
+ @retval EFI_UNSUPPORTED The terminal is not in a valid text mode, or the cursor position
+ is invalid for current mode.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalConOutSetCursorPosition (
+ IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
+ IN UINTN Column,
+ IN UINTN Row
+ );
+
+/**
+ Implements SIMPLE_TEXT_OUTPUT.EnableCursor().
+ In this driver, the cursor cannot be hidden.
+
+ @param This Indicates the calling context.
+ @param Visible If TRUE, the cursor is set to be visible,
+ If FALSE, the cursor is set to be invisible.
+
+ @retval EFI_SUCCESS The request is valid.
+ @retval EFI_UNSUPPORTED The terminal does not support cursor hidden.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalConOutEnableCursor (
+ IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
+ IN BOOLEAN Visible
+ );
+
+/**
+ Test to see if this driver supports Controller.
+
+ @param This Protocol instance pointer.
+ @param ControllerHandle Handle of device to test
+ @param RemainingDevicePath Optional parameter use to pick a specific child
+ device to start.
+
+ @retval EFI_SUCCESS This driver supports this device.
+ @retval EFI_ALREADY_STARTED This driver is already running on this device.
+ @retval other This driver does not support this device.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalDriverBindingSupported (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE ControllerHandle,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ );
+
+/**
+ Start this driver on Controller by opening a Serial IO protocol,
+ reading Device Path, and creating a child handle with a Simple Text In,
+ Simple Text In Ex and Simple Text Out protocol, and device path protocol.
+ And store Console Device Environment Variables.
+
+ @param This Protocol instance pointer.
+ @param Controller Handle of device to bind driver to
+ @param RemainingDevicePath Optional parameter use to pick a specific child
+ device to start.
+
+ @retval EFI_SUCCESS This driver is added to Controller.
+ @retval EFI_ALREADY_STARTED This driver is already running on Controller.
+ @retval other This driver does not support this device.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalDriverBindingStart (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ );
+
+
+/**
+ Stop this driver on Controller by closing Simple Text In, Simple Text
+ In Ex, Simple Text Out protocol, and removing parent device path from
+ Console Device Environment Variables.
+
+ @param This Protocol instance pointer.
+ @param Controller Handle of device to stop driver on
+ @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
+ children is zero stop the entire bus driver.
+ @param ChildHandleBuffer List of Child Handles to Stop.
+
+ @retval EFI_SUCCESS This driver is removed Controller.
+ @retval other This driver could not be removed from this device.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalDriverBindingStop (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN UINTN NumberOfChildren,
+ IN EFI_HANDLE *ChildHandleBuffer
+ );
+
+/**
+ Free notify functions list.
+
+ @param ListHead The list head
+
+ @retval EFI_SUCCESS Free the notify list successfully.
+ @retval EFI_INVALID_PARAMETER ListHead is NULL.
+
+**/
+EFI_STATUS
+TerminalFreeNotifyList (
+ IN OUT LIST_ENTRY *ListHead
+ );
+
+/**
+ Retrieves a Unicode string that is the user readable name of the driver.
+
+ This function retrieves the user readable name of a driver in the form of a
+ Unicode string. If the driver specified by This has a user readable name in
+ the language specified by Language, then a pointer to the driver name is
+ returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
+ by This does not support the language specified by Language,
+ then EFI_UNSUPPORTED is returned.
+
+ @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
+ EFI_COMPONENT_NAME_PROTOCOL instance.
+
+ @param Language[in] A pointer to a Null-terminated ASCII string
+ array indicating the language. This is the
+ language of the driver name that the caller is
+ requesting, and it must match one of the
+ languages specified in SupportedLanguages. The
+ number of languages supported by a driver is up
+ to the driver writer. Language is specified
+ in RFC 4646 or ISO 639-2 language code format.
+
+ @param DriverName[out] A pointer to the Unicode string to return.
+ This Unicode string is the name of the
+ driver specified by This in the language
+ specified by Language.
+
+ @retval EFI_SUCCESS The Unicode string for the Driver specified by
+ This and the language specified by Language was
+ returned in DriverName.
+
+ @retval EFI_INVALID_PARAMETER Language is NULL.
+
+ @retval EFI_INVALID_PARAMETER DriverName is NULL.
+
+ @retval EFI_UNSUPPORTED The driver specified by This does not support
+ the language specified by Language.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalComponentNameGetDriverName (
+ IN EFI_COMPONENT_NAME_PROTOCOL *This,
+ IN CHAR8 *Language,
+ OUT CHAR16 **DriverName
+ );
+
+
+/**
+ Retrieves a Unicode string that is the user readable name of the controller
+ that is being managed by a driver.
+
+ This function retrieves the user readable name of the controller specified by
+ ControllerHandle and ChildHandle in the form of a Unicode string. If the
+ driver specified by This has a user readable name in the language specified by
+ Language, then a pointer to the controller name is returned in ControllerName,
+ and EFI_SUCCESS is returned. If the driver specified by This is not currently
+ managing the controller specified by ControllerHandle and ChildHandle,
+ then EFI_UNSUPPORTED is returned. If the driver specified by This does not
+ support the language specified by Language, then EFI_UNSUPPORTED is returned.
+
+ @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
+ EFI_COMPONENT_NAME_PROTOCOL instance.
+
+ @param ControllerHandle[in] The handle of a controller that the driver
+ specified by This is managing. This handle
+ specifies the controller whose name is to be
+ returned.
+
+ @param ChildHandle[in] The handle of the child controller to retrieve
+ the name of. This is an optional parameter that
+ may be NULL. It will be NULL for device
+ drivers. It will also be NULL for a bus drivers
+ that wish to retrieve the name of the bus
+ controller. It will not be NULL for a bus
+ driver that wishes to retrieve the name of a
+ child controller.
+
+ @param Language[in] A pointer to a Null-terminated ASCII string
+ array indicating the language. This is the
+ language of the driver name that the caller is
+ requesting, and it must match one of the
+ languages specified in SupportedLanguages. The
+ number of languages supported by a driver is up
+ to the driver writer. Language is specified in
+ RFC 4646 or ISO 639-2 language code format.
+
+ @param ControllerName[out] A pointer to the Unicode string to return.
+ This Unicode string is the name of the
+ controller specified by ControllerHandle and
+ ChildHandle in the language specified by
+ Language from the point of view of the driver
+ specified by This.
+
+ @retval EFI_SUCCESS The Unicode string for the user readable name in
+ the language specified by Language for the
+ driver specified by This was returned in
+ DriverName.
+
+ @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
+
+ @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
+ EFI_HANDLE.
+
+ @retval EFI_INVALID_PARAMETER Language is NULL.
+
+ @retval EFI_INVALID_PARAMETER ControllerName is NULL.
+
+ @retval EFI_UNSUPPORTED The driver specified by This is not currently
+ managing the controller specified by
+ ControllerHandle and ChildHandle.
+
+ @retval EFI_UNSUPPORTED The driver specified by This does not support
+ the language specified by Language.
+
+**/
+EFI_STATUS
+EFIAPI
+TerminalComponentNameGetControllerName (
+ IN EFI_COMPONENT_NAME_PROTOCOL *This,
+ IN EFI_HANDLE ControllerHandle,
+ IN EFI_HANDLE ChildHandle OPTIONAL,
+ IN CHAR8 *Language,
+ OUT CHAR16 **ControllerName
+ );
+
+
+//
+// internal functions
+//
+
+/**
+ Check for a pending key in the Efi Key FIFO or Serial device buffer.
+
+ @param This Indicates the calling context.
+
+ @retval EFI_SUCCESS There is key pending.
+ @retval EFI_NOT_READY There is no key pending.
+ @retval EFI_DEVICE_ERROR If Serial IO is not attached to serial device.
+
+**/
+EFI_STATUS
+TerminalConInCheckForKey (
+ IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This
+ );
+
+/**
+ Update terminal device path in Console Device Environment Variables.
+
+ @param VariableName The Console Device Environment Variable.
+ @param ParentDevicePath The terminal device path to be updated.
+
+ @return None.
+
+**/
+VOID
+TerminalUpdateConsoleDevVariable (
+ IN CHAR16 *VariableName,
+ IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath
+ );
+
+/**
+ Remove console device variable.
+
+ @param VariableName A pointer to the variable name.
+ @param ParentDevicePath A pointer to the parent device path.
+
+**/
+VOID
+TerminalRemoveConsoleDevVariable (
+ IN CHAR16 *VariableName,
+ IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath
+ );
+
+/**
+ Build termial device path according to terminal type.
+
+ @param TerminalType The terminal type is PC ANSI, VT100, VT100+, VT-UTF8, TTY-Term,
+ Linux, XtermR6, VT400 and SCO.
+ @param ParentDevicePath Parent device path.
+ @param TerminalDevicePath Returned terminal device path, if building successfully.
+
+ @retval EFI_UNSUPPORTED Terminal does not belong to the supported type.
+ @retval EFI_OUT_OF_RESOURCES Generate terminal device path failed.
+ @retval EFI_SUCCESS Build terminal device path successfully.
+
+**/
+EFI_STATUS
+SetTerminalDevicePath (
+ IN TERMINAL_TYPE TerminalType,
+ IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath,
+ OUT EFI_DEVICE_PATH_PROTOCOL **TerminalDevicePath
+ );
+
+/**
+ Get one key out of serial buffer.
+
+ @param SerialIo Serial I/O protocl attached to the serial device.
+ @param Input The fetched key.
+
+ @retval EFI_NOT_READY If serial buffer is empty.
+ @retval EFI_DEVICE_ERROR If reading serial buffer encounter error.
+ @retval EFI_SUCCESS If reading serial buffer successfully, put
+ the fetched key to the parameter output.
+
+**/
+EFI_STATUS
+GetOneKeyFromSerial (
+ EFI_SERIAL_IO_PROTOCOL *SerialIo,
+ UINT8 *Input
+ );
+
+/**
+ Insert one byte raw data into the Raw Data FIFO.
+
+ @param TerminalDevice Terminal driver private structure.
+ @param Input The key will be input.
+
+ @retval TRUE If insert successfully.
+ @retval FALSE If Raw Data buffer is full before key insertion,
+ and the key is lost.
+
+**/
+BOOLEAN
+RawFiFoInsertOneKey (
+ TERMINAL_DEV *TerminalDevice,
+ UINT8 Input
+ );
+
+/**
+ Remove one pre-fetched key out of the Raw Data FIFO.
+
+ @param TerminalDevice Terminal driver private structure.
+ @param Output The key will be removed.
+
+ @retval TRUE If insert successfully.
+ @retval FALSE If Raw Data FIFO buffer is empty before remove operation.
+
+**/
+BOOLEAN
+RawFiFoRemoveOneKey (
+ TERMINAL_DEV *TerminalDevice,
+ UINT8 *Output
+ );
+
+/**
+ Clarify whether Raw Data FIFO buffer is empty.
+
+ @param TerminalDevice Terminal driver private structure
+
+ @retval TRUE If Raw Data FIFO buffer is empty.
+ @retval FALSE If Raw Data FIFO buffer is not empty.
+
+**/
+BOOLEAN
+IsRawFiFoEmpty (
+ TERMINAL_DEV *TerminalDevice
+ );
+
+/**
+ Clarify whether Raw Data FIFO buffer is full.
+
+ @param TerminalDevice Terminal driver private structure
+
+ @retval TRUE If Raw Data FIFO buffer is full.
+ @retval FALSE If Raw Data FIFO buffer is not full.
+
+**/
+BOOLEAN
+IsRawFiFoFull (
+ TERMINAL_DEV *TerminalDevice
+ );
+
+/**
+ Insert one pre-fetched key into the FIFO buffer.
+
+ @param EfiKeyFiFo Pointer to instance of EFI_KEY_FIFO.
+ @param Input The key will be input.
+
+ @retval TRUE If insert successfully.
+ @retval FALSE If FIFO buffer is full before key insertion,
+ and the key is lost.
+
+**/
+BOOLEAN
+EfiKeyFiFoForNotifyInsertOneKey (
+ EFI_KEY_FIFO *EfiKeyFiFo,
+ EFI_INPUT_KEY *Input
+ );
+
+/**
+ Remove one pre-fetched key out of the FIFO buffer.
+
+ @param EfiKeyFiFo Pointer to instance of EFI_KEY_FIFO.
+ @param Output The key will be removed.
+
+ @retval TRUE If insert successfully.
+ @retval FALSE If FIFO buffer is empty before remove operation.
+
+**/
+BOOLEAN
+EfiKeyFiFoForNotifyRemoveOneKey (
+ EFI_KEY_FIFO *EfiKeyFiFo,
+ EFI_INPUT_KEY *Output
+ );
+
+/**
+ Clarify whether FIFO buffer is empty.
+
+ @param EfiKeyFiFo Pointer to instance of EFI_KEY_FIFO.
+
+ @retval TRUE If FIFO buffer is empty.
+ @retval FALSE If FIFO buffer is not empty.
+
+**/
+BOOLEAN
+IsEfiKeyFiFoForNotifyEmpty (
+ IN EFI_KEY_FIFO *EfiKeyFiFo
+ );
+
+/**
+ Clarify whether FIFO buffer is full.
+
+ @param EfiKeyFiFo Pointer to instance of EFI_KEY_FIFO.
+
+ @retval TRUE If FIFO buffer is full.
+ @retval FALSE If FIFO buffer is not full.
+
+**/
+BOOLEAN
+IsEfiKeyFiFoForNotifyFull (
+ EFI_KEY_FIFO *EfiKeyFiFo
+ );
+
+/**
+ Insert one pre-fetched key into the FIFO buffer.
+
+ @param TerminalDevice Terminal driver private structure.
+ @param Key The key will be input.
+
+ @retval TRUE If insert successfully.
+ @retval FALSE If FIFO buffer is full before key insertion,
+ and the key is lost.
+
+**/
+BOOLEAN
+EfiKeyFiFoInsertOneKey (
+ TERMINAL_DEV *TerminalDevice,
+ EFI_INPUT_KEY *Key
+ );
+
+/**
+ Remove one pre-fetched key out of the FIFO buffer.
+
+ @param TerminalDevice Terminal driver private structure.
+ @param Output The key will be removed.
+
+ @retval TRUE If insert successfully.
+ @retval FALSE If FIFO buffer is empty before remove operation.
+
+**/
+BOOLEAN
+EfiKeyFiFoRemoveOneKey (
+ TERMINAL_DEV *TerminalDevice,
+ EFI_INPUT_KEY *Output
+ );
+
+/**
+ Clarify whether FIFO buffer is empty.
+
+ @param TerminalDevice Terminal driver private structure
+
+ @retval TRUE If FIFO buffer is empty.
+ @retval FALSE If FIFO buffer is not empty.
+
+**/
+BOOLEAN
+IsEfiKeyFiFoEmpty (
+ TERMINAL_DEV *TerminalDevice
+ );
+
+/**
+ Clarify whether FIFO buffer is full.
+
+ @param TerminalDevice Terminal driver private structure
+
+ @retval TRUE If FIFO buffer is full.
+ @retval FALSE If FIFO buffer is not full.
+
+**/
+BOOLEAN
+IsEfiKeyFiFoFull (
+ TERMINAL_DEV *TerminalDevice
+ );
+
+/**
+ Insert one pre-fetched key into the Unicode FIFO buffer.
+
+ @param TerminalDevice Terminal driver private structure.
+ @param Input The key will be input.
+
+ @retval TRUE If insert successfully.
+ @retval FALSE If Unicode FIFO buffer is full before key insertion,
+ and the key is lost.
+
+**/
+BOOLEAN
+UnicodeFiFoInsertOneKey (
+ TERMINAL_DEV *TerminalDevice,
+ UINT16 Input
+ );
+
+/**
+ Remove one pre-fetched key out of the Unicode FIFO buffer.
+ The caller should guarantee that Unicode FIFO buffer is not empty
+ by IsUnicodeFiFoEmpty ().
+
+ @param TerminalDevice Terminal driver private structure.
+ @param Output The key will be removed.
+
+**/
+VOID
+UnicodeFiFoRemoveOneKey (
+ TERMINAL_DEV *TerminalDevice,
+ UINT16 *Output
+ );
+
+/**
+ Clarify whether Unicode FIFO buffer is empty.
+
+ @param TerminalDevice Terminal driver private structure
+
+ @retval TRUE If Unicode FIFO buffer is empty.
+ @retval FALSE If Unicode FIFO buffer is not empty.
+
+**/
+BOOLEAN
+IsUnicodeFiFoEmpty (
+ TERMINAL_DEV *TerminalDevice
+ );
+
+/**
+ Clarify whether Unicode FIFO buffer is full.
+
+ @param TerminalDevice Terminal driver private structure
+
+ @retval TRUE If Unicode FIFO buffer is full.
+ @retval FALSE If Unicode FIFO buffer is not full.
+
+**/
+BOOLEAN
+IsUnicodeFiFoFull (
+ TERMINAL_DEV *TerminalDevice
+ );
+
+
+/**
+ Translate raw data into Unicode (according to different encode), and
+ translate Unicode into key information. (according to different standard).
+
+ @param TerminalDevice Terminal driver private structure.
+
+**/
+VOID
+TranslateRawDataToEfiKey (
+ IN TERMINAL_DEV *TerminalDevice
+ );
+
+//
+// internal functions for PC ANSI
+//
+
+/**
+ Translate all raw data in the Raw FIFI into unicode, and insert
+ them into Unicode FIFO.
+
+ @param TerminalDevice The terminal device.
+
+**/
+VOID
+AnsiRawDataToUnicode (
+ IN TERMINAL_DEV *TerminalDevice
+ );
+
+/**
+ Converts a stream of Unicode characters from a terminal input device into EFI Keys that
+ can be read through the Simple Input Protocol.
+
+ The table below shows the keyboard input mappings that this function supports.
+ If the ESC sequence listed in one of the columns is presented, then it is translated
+ into the coorespoding EFI Scan Code. If a matching sequence is not found, then the raw
+ key strokes are converted into EFI Keys.
+
+ 2 seconds are allowed for an ESC sequence to be completed. If the ESC sequence is not
+ completed in 2 seconds, then the raw key strokes of the partial ESC sequence are
+ converted into EFI Keys.
+ There is one special input sequence that will force the system to reset.
+ This is ESC R ESC r ESC R.
+
+ Symbols used in table below
+ ===========================
+ ESC = 0x1B
+ CSI = 0x9B
+ DEL = 0x7f
+ ^ = CTRL
+ +=========+======+===========+==========+==========+
+ | | EFI | UEFI 2.0 | | |
+ | | Scan | | VT100+ | |
+ | KEY | Code | PC ANSI | VTUTF8 | VT100 |
+ +=========+======+===========+==========+==========+
+ | NULL | 0x00 | | | |
+ | UP | 0x01 | ESC [ A | ESC [ A | ESC [ A |
+ | DOWN | 0x02 | ESC [ B | ESC [ B | ESC [ B |
+ | RIGHT | 0x03 | ESC [ C | ESC [ C | ESC [ C |
+ | LEFT | 0x04 | ESC [ D | ESC [ D | ESC [ D |
+ | HOME | 0x05 | ESC [ H | ESC h | ESC [ H |
+ | END | 0x06 | ESC [ F | ESC k | ESC [ K |
+ | INSERT | 0x07 | ESC [ @ | ESC + | ESC [ @ |
+ | | | ESC [ L | | ESC [ L |
+ | DELETE | 0x08 | ESC [ X | ESC - | ESC [ P |
+ | PG UP | 0x09 | ESC [ I | ESC ? | ESC [ V |
+ | | | | | ESC [ ? |
+ | PG DOWN | 0x0A | ESC [ G | ESC / | ESC [ U |
+ | | | | | ESC [ / |
+ | F1 | 0x0B | ESC [ M | ESC 1 | ESC O P |
+ | F2 | 0x0C | ESC [ N | ESC 2 | ESC O Q |
+ | F3 | 0x0D | ESC [ O | ESC 3 | ESC O w |
+ | F4 | 0x0E | ESC [ P | ESC 4 | ESC O x |
+ | F5 | 0x0F | ESC [ Q | ESC 5 | ESC O t |
+ | F6 | 0x10 | ESC [ R | ESC 6 | ESC O u |
+ | F7 | 0x11 | ESC [ S | ESC 7 | ESC O q |
+ | F8 | 0x12 | ESC [ T | ESC 8 | ESC O r |
+ | F9 | 0x13 | ESC [ U | ESC 9 | ESC O p |
+ | F10 | 0x14 | ESC [ V | ESC 0 | ESC O M |
+ | Escape | 0x17 | ESC | ESC | ESC |
+ | F11 | 0x15 | | ESC ! | |
+ | F12 | 0x16 | | ESC @ | |
+ +=========+======+===========+==========+==========+
+
+Putty function key map:
+ +=========+======+===========+=============+=============+=============+=========+
+ | | EFI | | | | | |
+ | | Scan | | | Normal | | |
+ | KEY | Code | VT100+ | Xterm R6 | VT400 | Linux | SCO |
+ +=========+======+===========+=============+=============+=============+=========+
+ | F1 | 0x0B | ESC O P | ESC O P | ESC [ 1 1 ~ | ESC [ [ A | ESC [ M |
+ | F2 | 0x0C | ESC O Q | ESC O Q | ESC [ 1 2 ~ | ESC [ [ B | ESC [ N |
+ | F3 | 0x0D | ESC O R | ESC O R | ESC [ 1 3 ~ | ESC [ [ C | ESC [ O |
+ | F4 | 0x0E | ESC O S | ESC O S | ESC [ 1 4 ~ | ESC [ [ D | ESC [ P |
+ | F5 | 0x0F | ESC O T | ESC [ 1 5 ~ | ESC [ 1 5 ~ | ESC [ [ E | ESC [ Q |
+ | F6 | 0x10 | ESC O U | ESC [ 1 7 ~ | ESC [ 1 7 ~ | ESC [ 1 7 ~ | ESC [ R |
+ | F7 | 0x11 | ESC O V | ESC [ 1 8 ~ | ESC [ 1 8 ~ | ESC [ 1 8 ~ | ESC [ S |
+ | F8 | 0x12 | ESC O W | ESC [ 1 9 ~ | ESC [ 1 9 ~ | ESC [ 1 9 ~ | ESC [ T |
+ | F9 | 0x13 | ESC O X | ESC [ 2 0 ~ | ESC [ 2 0 ~ | ESC [ 2 0 ~ | ESC [ U |
+ | F10 | 0x14 | ESC O Y | ESC [ 2 1 ~ | ESC [ 2 1 ~ | ESC [ 2 1 ~ | ESC [ V |
+ | Escape | 0x17 | ESC | ESC | ESC | ESC | ESC |
+ | F11 | 0x15 | ESC O Z | ESC [ 2 3 ~ | ESC [ 2 3 ~ | ESC [ 2 3 ~ | ESC [ W |
+ | F12 | 0x16 | ESC O [ | ESC [ 2 4 ~ | ESC [ 2 4 ~ | ESC [ 2 4 ~ | ESC [ X |
+ +=========+======+===========+=============+=============+=============+=========+
+
+
+ Special Mappings
+ ================
+ ESC R ESC r ESC R = Reset System
+
+
+ @param TerminalDevice The terminal device to use to translate raw input into EFI Keys
+
+**/
+VOID
+UnicodeToEfiKey (
+ IN TERMINAL_DEV *TerminalDevice
+ );
+
+/**
+ Check if input string is valid Ascii string, valid EFI control characters
+ or valid text graphics.
+
+ @param TerminalDevice The terminal device.
+ @param WString The input string.
+
+ @retval EFI_UNSUPPORTED If not all input characters are valid.
+ @retval EFI_SUCCESS If all input characters are valid.
+
+**/
+EFI_STATUS
+AnsiTestString (
+ IN TERMINAL_DEV *TerminalDevice,
+ IN CHAR16 *WString
+ );
+
+//
+// internal functions for VTUTF8
+//
+
+/**
+ Translate all VT-UTF8 characters in the Raw FIFI into unicode characters,
+ and insert them into Unicode FIFO.
+
+ @param VtUtf8Device The terminal device.
+
+**/
+VOID
+VTUTF8RawDataToUnicode (
+ IN TERMINAL_DEV *VtUtf8Device
+ );
+
+/**
+ Check if input string is valid VT-UTF8 string.
+
+ @param TerminalDevice The terminal device.
+ @param WString The input string.
+
+ @retval EFI_SUCCESS If all input characters are valid.
+
+**/
+EFI_STATUS
+VTUTF8TestString (
+ IN TERMINAL_DEV *TerminalDevice,
+ IN CHAR16 *WString
+ );
+
+/**
+ Translate one Unicode character into VT-UTF8 characters.
+
+ UTF8 Encoding Table
+ Bits per Character | Unicode Character Range | Unicode Binary Encoding | UTF8 Binary Encoding
+ 0-7 | 0x0000 - 0x007F | 00000000 0xxxxxxx | 0xxxxxxx
+ 8-11 | 0x0080 - 0x07FF | 00000xxx xxxxxxxx | 110xxxxx 10xxxxxx
+ 12-16 | 0x0800 - 0xFFFF | xxxxxxxx xxxxxxxx | 1110xxxx 10xxxxxx 10xxxxxx
+
+
+ @param Unicode Unicode character need translating.
+ @param Utf8Char Return VT-UTF8 character set.
+ @param ValidBytes The count of valid VT-UTF8 characters. If
+ ValidBytes is zero, no valid VT-UTF8 returned.
+
+**/
+VOID
+UnicodeToUtf8 (
+ IN CHAR16 Unicode,
+ OUT UTF8_CHAR *Utf8Char,
+ OUT UINT8 *ValidBytes
+ );
+
+/**
+ Get one valid VT-UTF8 characters set from Raw Data FIFO.
+
+ @param Utf8Device The terminal device.
+ @param Utf8Char Returned valid VT-UTF8 characters set.
+ @param ValidBytes The count of returned VT-VTF8 characters.
+ If ValidBytes is zero, no valid VT-UTF8 returned.
+
+**/
+VOID
+GetOneValidUtf8Char (
+ IN TERMINAL_DEV *Utf8Device,
+ OUT UTF8_CHAR *Utf8Char,
+ OUT UINT8 *ValidBytes
+ );
+
+/**
+ Translate VT-UTF8 characters into one Unicode character.
+
+ UTF8 Encoding Table
+ Bits per Character | Unicode Character Range | Unicode Binary Encoding | UTF8 Binary Encoding
+ 0-7 | 0x0000 - 0x007F | 00000000 0xxxxxxx | 0xxxxxxx
+ 8-11 | 0x0080 - 0x07FF | 00000xxx xxxxxxxx | 110xxxxx 10xxxxxx
+ 12-16 | 0x0800 - 0xFFFF | xxxxxxxx xxxxxxxx | 1110xxxx 10xxxxxx 10xxxxxx
+
+
+ @param Utf8Char VT-UTF8 character set needs translating.
+ @param ValidBytes The count of valid VT-UTF8 characters.
+ @param UnicodeChar Returned unicode character.
+
+**/
+VOID
+Utf8ToUnicode (
+ IN UTF8_CHAR Utf8Char,
+ IN UINT8 ValidBytes,
+ OUT CHAR16 *UnicodeChar
+ );
+
+//
+// functions for boxdraw unicode
+//
+
+/**
+ Detects if a Unicode char is for Box Drawing text graphics.
+
+ @param Graphic Unicode char to test.
+ @param PcAnsi Optional pointer to return PCANSI equivalent of
+ Graphic.
+ @param Ascii Optional pointer to return ASCII equivalent of
+ Graphic.
+
+ @retval TRUE If Graphic is a supported Unicode Box Drawing character.
+
+**/
+BOOLEAN
+TerminalIsValidTextGraphics (
+ IN CHAR16 Graphic,
+ OUT CHAR8 *PcAnsi, OPTIONAL
+ OUT CHAR8 *Ascii OPTIONAL
+ );
+
+/**
+ Detects if a valid ASCII char.
+
+ @param Ascii An ASCII character.
+
+ @retval TRUE If it is a valid ASCII character.
+ @retval FALSE If it is not a valid ASCII character.
+
+**/
+BOOLEAN
+TerminalIsValidAscii (
+ IN CHAR16 Ascii
+ );
+
+/**
+ Detects if a valid EFI control character.
+
+ @param CharC An input EFI Control character.
+
+ @retval TRUE If it is a valid EFI control character.
+ @retval FALSE If it is not a valid EFI control character.
+
+**/
+BOOLEAN
+TerminalIsValidEfiCntlChar (
+ IN CHAR16 CharC
+ );
+
+/**
+ Check if the device supports hot-plug through its device path.
+
+ This function could be updated to check more types of Hot Plug devices.
+ Currently, it checks USB and PCCard device.
+
+ @param DevicePath Pointer to device's device path.
+
+ @retval TRUE The devcie is a hot-plug device
+ @retval FALSE The devcie is not a hot-plug device.
+
+**/
+BOOLEAN
+IsHotPlugDevice (
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
+ );
+
+/**
+ Timer handler to poll the key from serial.
+
+ @param Event Indicates the event that invoke this function.
+ @param Context Indicates the calling context.
+**/
+VOID
+EFIAPI
+TerminalConInTimerHandler (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ );
+
+
+/**
+ Process key notify.
+
+ @param Event Indicates the event that invoke this function.
+ @param Context Indicates the calling context.
+**/
+VOID
+EFIAPI
+KeyNotifyProcessHandler (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ );
+
+#endif
--
cgit