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audk/MdeModulePkg/Universal/Console/TerminalDxe/Terminal.h

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/** @file
Header file for Terminal driver.
Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _TERMINAL_H_
#define _TERMINAL_H_
#include <Uefi.h>
#include <Guid/GlobalVariable.h>
#include <Guid/PcAnsi.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_HANDLE NotifyHandle;
EFI_KEY_DATA KeyData;
EFI_KEY_NOTIFY_FUNCTION KeyNotificationFn;
LIST_ENTRY NotifyEntry;
} TERMINAL_CONSOLE_IN_EX_NOTIFY;
typedef struct {
UINTN Signature;
EFI_HANDLE Handle;
UINT8 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_UNICODE_STRING_TABLE *ControllerNameTable;
EFI_EVENT TimerEvent;
EFI_EVENT TwoSecondTimeOut;
UINT32 InputState;
UINT32 ResetState;
//
// 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;
} 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 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 PCANSITYPE 0
#define VT100TYPE 1
#define VT100PLUSTYPE 2
#define VTUTF8TYPE 3
#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
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 FLASE 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.
@param KeyNotificationFunction Points to the function to be called when the key
sequence is typed specified by KeyData.
@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 EFI_HANDLE *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 EFI_HANDLE 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+ or VT-UTF8.
@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 UINT8 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 FLASE 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 FLASE 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 FLASE 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 FLASE If Raw Data FIFO buffer is not full.
**/
BOOLEAN
IsRawFiFoFull (
TERMINAL_DEV *TerminalDevice
);
/**
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 FLASE 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 FLASE 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 FLASE 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 FLASE 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 FLASE 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.
@param TerminalDevice Terminal driver private structure.
@param Output The key will be removed.
@retval TRUE If insert successfully.
@retval FLASE If Unicode FIFO buffer is empty before remove operation.
**/
BOOLEAN
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 FLASE 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 FLASE If Unicode FIFO buffer is not full.
**/
BOOLEAN
IsUnicodeFiFoFull (
TERMINAL_DEV *TerminalDevice
);
/**
Count Unicode FIFO buffer.
@param TerminalDevice Terminal driver private structure
@return The count in bytes of Unicode FIFO.
**/
UINT8
UnicodeFiFoGetKeyCount (
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 @ | |
+=========+======+===========+==========+==========+
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
);
#endif
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