terminalconout.c
来自「Next BIOS Source code : Extensible Firmw」· C语言 代码 · 共 937 行 · 第 1/2 页
C
937 行
/*++
Copyright (c) 1999 - 2002 Intel Corporation. All rights reserved
This software and associated documentation (if any) is furnished
under a license and may only be used or copied in accordance
with the terms of the license. Except as permitted by such
license, no part of this software or documentation may be
reproduced, stored in a retrieval system, or transmitted in any
form or by any means without the express written consent of
Intel Corporation.
Module Name:
TerminalConOut.c
Abstract:
Revision History
--*/
#include "Terminal.h"
//
// This list is used to define the valid extend chars.
// It also provides a mapping from Unicode to PCANSI or
// ASCII. The ASCII mapping we just made up.
//
//
STATIC UNICODE_TO_CHAR UnicodeToPcAnsiOrAscii[] = {
BOXDRAW_HORIZONTAL, 0xc4, L'-',
BOXDRAW_VERTICAL, 0xb3, L'|',
BOXDRAW_DOWN_RIGHT, 0xda, L'/',
BOXDRAW_DOWN_LEFT, 0xbf, L'\\',
BOXDRAW_UP_RIGHT, 0xc0, L'\\',
BOXDRAW_UP_LEFT, 0xd9, L'/',
BOXDRAW_VERTICAL_RIGHT, 0xc3, L'|',
BOXDRAW_VERTICAL_LEFT, 0xb4, L'|',
BOXDRAW_DOWN_HORIZONTAL, 0xc2, L'+',
BOXDRAW_UP_HORIZONTAL, 0xc1, L'+',
BOXDRAW_VERTICAL_HORIZONTAL, 0xc5, L'+',
BOXDRAW_DOUBLE_HORIZONTAL, 0xcd, L'-',
BOXDRAW_DOUBLE_VERTICAL, 0xba, L'|',
BOXDRAW_DOWN_RIGHT_DOUBLE, 0xd5, L'/',
BOXDRAW_DOWN_DOUBLE_RIGHT, 0xd6, L'/',
BOXDRAW_DOUBLE_DOWN_RIGHT, 0xc9, L'/',
BOXDRAW_DOWN_LEFT_DOUBLE, 0xb8, L'\\',
BOXDRAW_DOWN_DOUBLE_LEFT, 0xb7, L'\\',
BOXDRAW_DOUBLE_DOWN_LEFT, 0xbb, L'\\',
BOXDRAW_UP_RIGHT_DOUBLE, 0xd4, L'\\',
BOXDRAW_UP_DOUBLE_RIGHT, 0xd3, L'\\',
BOXDRAW_DOUBLE_UP_RIGHT, 0xc8, L'\\',
BOXDRAW_UP_LEFT_DOUBLE, 0xbe, L'/',
BOXDRAW_UP_DOUBLE_LEFT, 0xbd, L'/',
BOXDRAW_DOUBLE_UP_LEFT, 0xbc, L'/',
BOXDRAW_VERTICAL_RIGHT_DOUBLE, 0xc6, L'|',
BOXDRAW_VERTICAL_DOUBLE_RIGHT, 0xc7, L'|',
BOXDRAW_DOUBLE_VERTICAL_RIGHT, 0xcc, L'|',
BOXDRAW_VERTICAL_LEFT_DOUBLE, 0xb5, L'|',
BOXDRAW_VERTICAL_DOUBLE_LEFT, 0xb6, L'|',
BOXDRAW_DOUBLE_VERTICAL_LEFT, 0xb9, L'|',
BOXDRAW_DOWN_HORIZONTAL_DOUBLE, 0xd1, L'+',
BOXDRAW_DOWN_DOUBLE_HORIZONTAL, 0xd2, L'+',
BOXDRAW_DOUBLE_DOWN_HORIZONTAL, 0xcb, L'+',
BOXDRAW_UP_HORIZONTAL_DOUBLE, 0xcf, L'+',
BOXDRAW_UP_DOUBLE_HORIZONTAL, 0xd0, L'+',
BOXDRAW_DOUBLE_UP_HORIZONTAL, 0xca, L'+',
BOXDRAW_VERTICAL_HORIZONTAL_DOUBLE, 0xd8, L'+',
BOXDRAW_VERTICAL_DOUBLE_HORIZONTAL, 0xd7, L'+',
BOXDRAW_DOUBLE_VERTICAL_HORIZONTAL, 0xce, L'+',
BLOCKELEMENT_FULL_BLOCK, 0xdb, L'*',
BLOCKELEMENT_LIGHT_SHADE, 0xb0, L'+',
GEOMETRICSHAPE_UP_TRIANGLE, 0x1e, L'^',
GEOMETRICSHAPE_RIGHT_TRIANGLE, 0x10, L'>',
GEOMETRICSHAPE_DOWN_TRIANGLE, 0x1f, L'v',
GEOMETRICSHAPE_LEFT_TRIANGLE, 0x11, L'<',
ARROW_LEFT, 0x3c, L'<',
ARROW_UP, 0x18, L'^',
ARROW_RIGHT, 0x3e, L'>',
ARROW_DOWN, 0x19, L'v',
0x0000, 0x00
};
CHAR16 mSetModeString[] = { ESC, '[', '=','3', 'h' , 0 };
CHAR16 mSetAttributeString[] = { ESC, '[', '0', 'm', ESC, '[', '4', '0', 'm', ESC, '[', '4', '0', 'm', 0 };
CHAR16 mClearScreenString[] = { ESC, '[', '2', 'J' , 0 };
CHAR16 mSetCursorPositionString[] = { ESC, '[', '0', '0', ';', '0', '0', 'H', 0 };
//
// Body of the ConOut functions
//
EFI_STATUS
EFIAPI
TerminalConOutReset (
IN EFI_SIMPLE_TEXT_OUT_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
/*++
Routine Description:
Implements EFI_SIMPLE_TEXT_OUT_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.
Arguments:
EFI_SIMPLE_TEXT_OUT_PROTOCOL IN *This
Indicates the calling context.
BOOLEAN IN ExtendedVerification
Indicates that the driver may perform a more exhaustive
verification operation of the device during reset.
Returns:
EFI_SUCCESS
The reset operation succeeds.
EFI_DEVICE_ERROR
The terminal is not functioning correctly or the serial port reset fails.
--*/
{
EFI_STATUS Status;
TERMINAL_DEV *TerminalDevice;
TerminalDevice = TERMINAL_CON_OUT_DEV_FROM_THIS(This);
//
// Perform a more exhaustive reset by resetting the serial port.
//
if (ExtendedVerification) {
Status = TerminalDevice->SerialIo->Reset (TerminalDevice->SerialIo);
if(EFI_ERROR(Status)) {
return Status;
}
}
//
//reset the background and keep the foreground unchanged
//
This->SetAttribute(This,This->Mode->Attribute & 0xf);
Status = This->SetMode (This, 0);
return Status;
}
EFI_STATUS
EFIAPI
TerminalConOutOutputString (
IN EFI_SIMPLE_TEXT_OUT_PROTOCOL *This,
IN CHAR16 *WString
)
/*++
Routine Description:
Implements EFI_SIMPLE_TEXT_OUT_PROTOCOL.OutputString().
The Unicode string will be converted to terminal expressible data stream
and send to terminal via serial port.
Arguments:
EFI_SIMPLE_TEXT_OUT_PROTOCOL IN *This
Indicates the calling context.
CHAR16 IN *WString
The Null-terminated Unicode string to be displayed on
the terminal screen.
Returns:
EFI_SUCCESS
The string is output successfully.
EFI_DEVICE_ERROR
The serial port fails to send the string out.
EFI_WARN_UNKNOWN_GLYPH
Indicates that some of the characters in the Unicode string could not
be rendered and are skipped.
--*/
{
TERMINAL_DEV *TerminalDevice;
EFI_SIMPLE_TEXT_OUTPUT_MODE *Mode;
UINTN MaxColumn;
UINTN MaxRow;
UINTN Length;
UTF8_CHAR Utf8Char;
CHAR8 GraphicChar;
CHAR8 AsciiChar;
EFI_STATUS Status;
UINT8 ValidBytes;
//
// flag used to indicate whether condition happens which will cause
// return EFI_WARN_UNKNOWN_GLYPH
//
BOOLEAN Warning;
ValidBytes = 0;
Warning = FALSE;
//
// get Terminal device data structure pointer.
//
TerminalDevice = TERMINAL_CON_OUT_DEV_FROM_THIS(This);
//
// get current display mode
// Terminal driver only support mode 0
//
Mode = This->Mode;
if (Mode->Mode != 0) {
return EFI_UNSUPPORTED;
}
This->QueryMode(
This,
Mode->Mode,
&MaxColumn,
&MaxRow
);
for (;*WString != CHAR_NULL; WString++) {
switch (TerminalDevice->TerminalType) {
case PcAnsiType:
case VT100Type:
case VT100PlusType:
if (!TerminalIsValidTextGraphics (*WString, &GraphicChar, &AsciiChar)) {
//
// If it's not a graphic character convert Unicode to ASCII.
//
GraphicChar = (CHAR8)*WString;
if (!(TerminalIsValidAscii(GraphicChar)
|| TerminalIsValidEfiCntlChar(GraphicChar))) {
//
// when this driver use the OutputString to output control string,
// TerminalDevice->OutputEscChar is set to let the Esc char
// to be output to the terminal emulation software.
//
if ((GraphicChar == 27) && TerminalDevice->OutputEscChar) {
GraphicChar = 27;
} else {
GraphicChar = '?';
Warning = TRUE;
}
}
AsciiChar = GraphicChar;
}
if (TerminalDevice->TerminalType != PcAnsiType) {
GraphicChar = AsciiChar;
}
Length = 1;
Status = TerminalDevice->SerialIo->Write(
TerminalDevice->SerialIo,
&Length,
&GraphicChar
);
if (EFI_ERROR(Status)) {
return EFI_DEVICE_ERROR;
}
break;
case VTUTF8Type:
UnicodeToUtf8 (*WString,&Utf8Char,&ValidBytes);
Length = ValidBytes;
Status = TerminalDevice->SerialIo->Write(
TerminalDevice->SerialIo,
&Length,
(UINT8*)&Utf8Char
);
if (EFI_ERROR(Status)) {
return EFI_DEVICE_ERROR;
}
break;
}
//
// Update cursor position.
//
switch (*WString) {
case CHAR_BACKSPACE :
if (Mode->CursorColumn > 0) {
Mode->CursorColumn--;
}
break;
case CHAR_LINEFEED :
if (Mode->CursorRow < (INT32)(MaxRow-1)) {
Mode->CursorRow++;
}
break;
case CHAR_CARRIAGE_RETURN:
Mode->CursorColumn = 0;
break;
default:
if (Mode->CursorColumn < (INT32)(MaxColumn-1)) {
Mode->CursorColumn++;
} else {
Mode->CursorColumn = 0;
if (Mode->CursorRow < (INT32)(MaxRow-1)) {
Mode->CursorRow++;
}
}
break;
};
}
if (Warning) {
return EFI_WARN_UNKNOWN_GLYPH;
}
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
TerminalConOutTestString (
IN EFI_SIMPLE_TEXT_OUT_PROTOCOL *This,
IN CHAR16 *WString
)
/*++
Routine Description:
Implements EFI_SIMPLE_TEXT_OUT_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.
Arguments:
EFI_SIMPLE_TEXT_OUT_PROTOCOL IN *This
Indicates the calling context.
CHAR16 IN *WString
The Null-terminated Unicode string to be tested.
Returns:
EFI_SUCCESS
The terminal is capable of rendering the output string.
EFI_UNSUPPORTED
Some of the characters in the Unicode string cannot be rendered.
--*/
{
TERMINAL_DEV *TerminalDevice;
EFI_STATUS Status;
//
// get Terminal device data structure pointer.
//
TerminalDevice = TERMINAL_CON_OUT_DEV_FROM_THIS(This);
switch (TerminalDevice->TerminalType) {
case PcAnsiType:
case VT100Type:
case VT100PlusType:
Status = AnsiTestString (TerminalDevice,WString);
break;
case VTUTF8Type:
Status = VTUTF8TestString (TerminalDevice,WString);
break;
default:
Status = EFI_UNSUPPORTED;
break;
}
return Status;
}
EFI_STATUS
EFIAPI
TerminalConOutQueryMode (
IN EFI_SIMPLE_TEXT_OUT_PROTOCOL *This,
IN UINTN ModeNumber,
OUT UINTN *Columns,
OUT UINTN *Rows
)
/*++
Routine Description:
Implements EFI_SIMPLE_TEXT_OUT_PROTOCOL.QueryMode().
It returns information for an available text mode
that the terminal supports.
In this driver, we only support text mode 80x25, which is
defined as mode 0.
Arguments:
EFI_SIMPLE_TEXT_OUT_PROTOCOL IN *This
Indicates the calling context.
UINTN IN ModeNumber
The mode number to return information on.
UINTN OUT *Columns
The returned columns of the requested mode.
UINTN OUT *Rows
The returned rows of the requested mode.
Returns:
EFI_SUCCESS
The requested mode information is returned.
EFI_UNSUPPORTED
The mode number is not valid.
--*/
{
if (ModeNumber == 0) {
*Columns = MODE0_COLUMN_COUNT;
*Rows = MODE0_ROW_COUNT;
return EFI_SUCCESS;
}
return EFI_UNSUPPORTED;
}
EFI_STATUS
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