mirror of https://github.com/acidanthera/audk.git
914 lines
24 KiB
C
914 lines
24 KiB
C
/** @file
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Implementation for EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL protocol.
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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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#include "Terminal.h"
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//
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// This list is used to define the valid extend chars.
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// It also provides a mapping from Unicode to PCANSI or
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// ASCII. The ASCII mapping we just made up.
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//
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//
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UNICODE_TO_CHAR UnicodeToPcAnsiOrAscii[] = {
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{ BOXDRAW_HORIZONTAL, 0xc4, L'-' },
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{ BOXDRAW_VERTICAL, 0xb3, L'|' },
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{ BOXDRAW_DOWN_RIGHT, 0xda, L'/' },
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{ BOXDRAW_DOWN_LEFT, 0xbf, L'\\' },
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{ BOXDRAW_UP_RIGHT, 0xc0, L'\\' },
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{ BOXDRAW_UP_LEFT, 0xd9, L'/' },
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{ BOXDRAW_VERTICAL_RIGHT, 0xc3, L'|' },
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{ BOXDRAW_VERTICAL_LEFT, 0xb4, L'|' },
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{ BOXDRAW_DOWN_HORIZONTAL, 0xc2, L'+' },
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{ BOXDRAW_UP_HORIZONTAL, 0xc1, L'+' },
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{ BOXDRAW_VERTICAL_HORIZONTAL, 0xc5, L'+' },
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{ BOXDRAW_DOUBLE_HORIZONTAL, 0xcd, L'-' },
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{ BOXDRAW_DOUBLE_VERTICAL, 0xba, L'|' },
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{ BOXDRAW_DOWN_RIGHT_DOUBLE, 0xd5, L'/' },
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{ BOXDRAW_DOWN_DOUBLE_RIGHT, 0xd6, L'/' },
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{ BOXDRAW_DOUBLE_DOWN_RIGHT, 0xc9, L'/' },
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{ BOXDRAW_DOWN_LEFT_DOUBLE, 0xb8, L'\\' },
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{ BOXDRAW_DOWN_DOUBLE_LEFT, 0xb7, L'\\' },
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{ BOXDRAW_DOUBLE_DOWN_LEFT, 0xbb, L'\\' },
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{ BOXDRAW_UP_RIGHT_DOUBLE, 0xd4, L'\\' },
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{ BOXDRAW_UP_DOUBLE_RIGHT, 0xd3, L'\\' },
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{ BOXDRAW_DOUBLE_UP_RIGHT, 0xc8, L'\\' },
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{ BOXDRAW_UP_LEFT_DOUBLE, 0xbe, L'/' },
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{ BOXDRAW_UP_DOUBLE_LEFT, 0xbd, L'/' },
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{ BOXDRAW_DOUBLE_UP_LEFT, 0xbc, L'/' },
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{ BOXDRAW_VERTICAL_RIGHT_DOUBLE, 0xc6, L'|' },
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{ BOXDRAW_VERTICAL_DOUBLE_RIGHT, 0xc7, L'|' },
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{ BOXDRAW_DOUBLE_VERTICAL_RIGHT, 0xcc, L'|' },
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{ BOXDRAW_VERTICAL_LEFT_DOUBLE, 0xb5, L'|' },
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{ BOXDRAW_VERTICAL_DOUBLE_LEFT, 0xb6, L'|' },
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{ BOXDRAW_DOUBLE_VERTICAL_LEFT, 0xb9, L'|' },
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{ BOXDRAW_DOWN_HORIZONTAL_DOUBLE, 0xd1, L'+' },
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{ BOXDRAW_DOWN_DOUBLE_HORIZONTAL, 0xd2, L'+' },
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{ BOXDRAW_DOUBLE_DOWN_HORIZONTAL, 0xcb, L'+' },
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{ BOXDRAW_UP_HORIZONTAL_DOUBLE, 0xcf, L'+' },
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{ BOXDRAW_UP_DOUBLE_HORIZONTAL, 0xd0, L'+' },
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{ BOXDRAW_DOUBLE_UP_HORIZONTAL, 0xca, L'+' },
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{ BOXDRAW_VERTICAL_HORIZONTAL_DOUBLE, 0xd8, L'+' },
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{ BOXDRAW_VERTICAL_DOUBLE_HORIZONTAL, 0xd7, L'+' },
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{ BOXDRAW_DOUBLE_VERTICAL_HORIZONTAL, 0xce, L'+' },
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{ BLOCKELEMENT_FULL_BLOCK, 0xdb, L'*' },
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{ BLOCKELEMENT_LIGHT_SHADE, 0xb0, L'+' },
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{ GEOMETRICSHAPE_UP_TRIANGLE, 0x1e, L'^' },
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{ GEOMETRICSHAPE_RIGHT_TRIANGLE, 0x10, L'>' },
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{ GEOMETRICSHAPE_DOWN_TRIANGLE, 0x1f, L'v' },
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{ GEOMETRICSHAPE_LEFT_TRIANGLE, 0x11, L'<' },
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{ ARROW_LEFT, 0x3c, L'<' },
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{ ARROW_UP, 0x18, L'^' },
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{ ARROW_RIGHT, 0x3e, L'>' },
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{ ARROW_DOWN, 0x19, L'v' },
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{ 0x0000, 0x00, L'\0' }
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};
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CHAR16 mSetModeString[] = { ESC, '[', '=', '3', 'h', 0 };
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CHAR16 mSetAttributeString[] = { ESC, '[', '0', 'm', ESC, '[', '4', '0', 'm', ESC, '[', '4', '0', 'm', 0 };
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CHAR16 mClearScreenString[] = { ESC, '[', '2', 'J', 0 };
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CHAR16 mSetCursorPositionString[] = { ESC, '[', '0', '0', ';', '0', '0', 'H', 0 };
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//
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// Body of the ConOut functions
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//
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/**
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Implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.Reset().
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If ExtendeVerification is TRUE, then perform dependent serial device reset,
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and set display mode to mode 0.
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If ExtendedVerification is FALSE, only set display mode to mode 0.
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@param This Indicates the calling context.
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@param ExtendedVerification Indicates that the driver may perform a more
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exhaustive verification operation of the device
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during reset.
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@retval EFI_SUCCESS The reset operation succeeds.
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@retval EFI_DEVICE_ERROR The terminal is not functioning correctly or the serial port reset fails.
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**/
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EFI_STATUS
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EFIAPI
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TerminalConOutReset (
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IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
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IN BOOLEAN ExtendedVerification
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)
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{
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EFI_STATUS Status;
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TERMINAL_DEV *TerminalDevice;
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TerminalDevice = TERMINAL_CON_OUT_DEV_FROM_THIS (This);
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//
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// Perform a more exhaustive reset by resetting the serial port.
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//
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if (ExtendedVerification) {
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//
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// Report progress code here
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//
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REPORT_STATUS_CODE_WITH_DEVICE_PATH (
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EFI_PROGRESS_CODE,
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PcdGet32 (PcdStatusCodeValueRemoteConsoleReset),
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TerminalDevice->DevicePath
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);
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Status = TerminalDevice->SerialIo->Reset (TerminalDevice->SerialIo);
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if (EFI_ERROR (Status)) {
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//
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// Report error code here
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//
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REPORT_STATUS_CODE_WITH_DEVICE_PATH (
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EFI_ERROR_CODE | EFI_ERROR_MINOR,
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PcdGet32 (PcdStatusCodeValueRemoteConsoleError),
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TerminalDevice->DevicePath
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);
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return Status;
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}
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}
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This->SetAttribute (This, EFI_TEXT_ATTR (This->Mode->Attribute & 0x0F, EFI_BLACK));
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Status = This->SetMode (This, 0);
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return Status;
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}
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/**
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Implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString().
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The Unicode string will be converted to terminal expressible data stream
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and send to terminal via serial port.
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@param This Indicates the calling context.
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@param WString The Null-terminated Unicode string to be displayed
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on the terminal screen.
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@retval EFI_SUCCESS The string is output successfully.
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@retval EFI_DEVICE_ERROR The serial port fails to send the string out.
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@retval EFI_WARN_UNKNOWN_GLYPH Indicates that some of the characters in the Unicode string could not
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be rendered and are skipped.
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@retval EFI_UNSUPPORTED If current display mode is out of range.
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**/
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EFI_STATUS
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EFIAPI
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TerminalConOutOutputString (
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IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
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IN CHAR16 *WString
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)
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{
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TERMINAL_DEV *TerminalDevice;
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EFI_SIMPLE_TEXT_OUTPUT_MODE *Mode;
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UINTN MaxColumn;
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UINTN MaxRow;
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UINTN Length;
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UTF8_CHAR Utf8Char;
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CHAR8 GraphicChar;
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CHAR8 AsciiChar;
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EFI_STATUS Status;
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UINT8 ValidBytes;
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//
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// flag used to indicate whether condition happens which will cause
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// return EFI_WARN_UNKNOWN_GLYPH
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//
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BOOLEAN Warning;
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ValidBytes = 0;
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Warning = FALSE;
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//
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// get Terminal device data structure pointer.
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//
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TerminalDevice = TERMINAL_CON_OUT_DEV_FROM_THIS (This);
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//
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// Get current display mode
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//
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Mode = This->Mode;
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if (Mode->Mode > 2) {
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return EFI_UNSUPPORTED;
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}
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This->QueryMode (
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This,
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Mode->Mode,
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&MaxColumn,
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&MaxRow
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);
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for (; *WString != CHAR_NULL; WString++) {
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switch (TerminalDevice->TerminalType) {
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case PCANSITYPE:
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case VT100TYPE:
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case VT100PLUSTYPE:
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if (!TerminalIsValidTextGraphics (*WString, &GraphicChar, &AsciiChar)) {
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//
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// If it's not a graphic character convert Unicode to ASCII.
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//
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GraphicChar = (CHAR8) *WString;
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if (!(TerminalIsValidAscii (GraphicChar) || TerminalIsValidEfiCntlChar (GraphicChar))) {
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//
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// when this driver use the OutputString to output control string,
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// TerminalDevice->OutputEscChar is set to let the Esc char
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// to be output to the terminal emulation software.
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//
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if ((GraphicChar == 27) && TerminalDevice->OutputEscChar) {
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GraphicChar = 27;
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} else {
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GraphicChar = '?';
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Warning = TRUE;
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}
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}
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AsciiChar = GraphicChar;
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}
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if (TerminalDevice->TerminalType != PCANSITYPE) {
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GraphicChar = AsciiChar;
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}
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Length = 1;
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Status = TerminalDevice->SerialIo->Write (
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TerminalDevice->SerialIo,
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&Length,
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&GraphicChar
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);
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if (EFI_ERROR (Status)) {
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goto OutputError;
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}
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break;
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case VTUTF8TYPE:
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UnicodeToUtf8 (*WString, &Utf8Char, &ValidBytes);
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Length = ValidBytes;
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Status = TerminalDevice->SerialIo->Write (
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TerminalDevice->SerialIo,
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&Length,
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(UINT8 *) &Utf8Char
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);
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if (EFI_ERROR (Status)) {
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goto OutputError;
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}
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break;
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}
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//
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// Update cursor position.
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//
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switch (*WString) {
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case CHAR_BACKSPACE:
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if (Mode->CursorColumn > 0) {
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Mode->CursorColumn--;
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}
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break;
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case CHAR_LINEFEED:
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if (Mode->CursorRow < (INT32) (MaxRow - 1)) {
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Mode->CursorRow++;
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}
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break;
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case CHAR_CARRIAGE_RETURN:
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Mode->CursorColumn = 0;
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break;
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default:
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if (Mode->CursorColumn < (INT32) (MaxColumn - 1)) {
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Mode->CursorColumn++;
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} else {
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Mode->CursorColumn = 0;
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if (Mode->CursorRow < (INT32) (MaxRow - 1)) {
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Mode->CursorRow++;
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}
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}
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break;
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};
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}
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if (Warning) {
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return EFI_WARN_UNKNOWN_GLYPH;
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}
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return EFI_SUCCESS;
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OutputError:
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REPORT_STATUS_CODE_WITH_DEVICE_PATH (
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EFI_ERROR_CODE | EFI_ERROR_MINOR,
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PcdGet32 (PcdStatusCodeValueRemoteConsoleOutputError),
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TerminalDevice->DevicePath
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);
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return EFI_DEVICE_ERROR;
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}
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/**
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Implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.TestString().
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If one of the characters in the *Wstring is
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neither valid Unicode drawing characters,
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not ASCII code, then this function will return
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EFI_UNSUPPORTED.
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@param This Indicates the calling context.
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@param WString The Null-terminated Unicode string to be tested.
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@retval EFI_SUCCESS The terminal is capable of rendering the output string.
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@retval EFI_UNSUPPORTED Some of the characters in the Unicode string cannot be rendered.
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**/
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EFI_STATUS
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EFIAPI
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TerminalConOutTestString (
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IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
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IN CHAR16 *WString
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)
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{
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TERMINAL_DEV *TerminalDevice;
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EFI_STATUS Status;
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//
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// get Terminal device data structure pointer.
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//
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TerminalDevice = TERMINAL_CON_OUT_DEV_FROM_THIS (This);
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switch (TerminalDevice->TerminalType) {
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case PCANSITYPE:
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case VT100TYPE:
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case VT100PLUSTYPE:
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Status = AnsiTestString (TerminalDevice, WString);
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break;
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case VTUTF8TYPE:
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Status = VTUTF8TestString (TerminalDevice, WString);
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break;
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default:
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Status = EFI_UNSUPPORTED;
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break;
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}
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return Status;
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}
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/**
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Implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.QueryMode().
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It returns information for an available text mode
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that the terminal supports.
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In this driver, we support text mode 80x25 (mode 0),
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80x50 (mode 1), 100x31 (mode 2).
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@param This Indicates the calling context.
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@param ModeNumber The mode number to return information on.
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@param Columns The returned columns of the requested mode.
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@param Rows The returned rows of the requested mode.
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@retval EFI_SUCCESS The requested mode information is returned.
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@retval EFI_UNSUPPORTED The mode number is not valid.
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@retval EFI_DEVICE_ERROR
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**/
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EFI_STATUS
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EFIAPI
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TerminalConOutQueryMode (
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IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
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IN UINTN ModeNumber,
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OUT UINTN *Columns,
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OUT UINTN *Rows
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)
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{
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if (This->Mode->MaxMode > 3) {
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return EFI_DEVICE_ERROR;
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}
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if (ModeNumber == 0) {
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*Columns = MODE0_COLUMN_COUNT;
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*Rows = MODE0_ROW_COUNT;
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return EFI_SUCCESS;
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} else if (ModeNumber == 1) {
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*Columns = MODE1_COLUMN_COUNT;
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*Rows = MODE1_ROW_COUNT;
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return EFI_SUCCESS;
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} else if (ModeNumber == 2) {
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*Columns = MODE2_COLUMN_COUNT;
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*Rows = MODE2_ROW_COUNT;
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return EFI_SUCCESS;
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}
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return EFI_UNSUPPORTED;
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}
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/**
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Implements EFI_SIMPLE_TEXT_OUT.SetMode().
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Set the terminal to a specified display mode.
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In this driver, we only support mode 0.
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@param This Indicates the calling context.
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@param ModeNumber The text mode to set.
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@retval EFI_SUCCESS The requested text mode is set.
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@retval EFI_DEVICE_ERROR The requested text mode cannot be set
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because of serial device error.
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@retval EFI_UNSUPPORTED The text mode number is not valid.
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**/
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EFI_STATUS
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EFIAPI
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TerminalConOutSetMode (
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IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
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IN UINTN ModeNumber
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)
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{
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EFI_STATUS Status;
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TERMINAL_DEV *TerminalDevice;
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|
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//
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// get Terminal device data structure pointer.
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//
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TerminalDevice = TERMINAL_CON_OUT_DEV_FROM_THIS (This);
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if (ModeNumber > 2) {
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return EFI_UNSUPPORTED;
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}
|
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|
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//
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// Set the current mode
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//
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This->Mode->Mode = (INT32) ModeNumber;
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This->ClearScreen (This);
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TerminalDevice->OutputEscChar = TRUE;
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Status = This->OutputString (This, mSetModeString);
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TerminalDevice->OutputEscChar = FALSE;
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|
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if (EFI_ERROR (Status)) {
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return EFI_DEVICE_ERROR;
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}
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This->Mode->Mode = (INT32) ModeNumber;
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|
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Status = This->ClearScreen (This);
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if (EFI_ERROR (Status)) {
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return EFI_DEVICE_ERROR;
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}
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return EFI_SUCCESS;
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|
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}
|
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|
|
|
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/**
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Implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.SetAttribute().
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@param This Indicates the calling context.
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@param Attribute The attribute to set. Only bit0..6 are valid, all other bits
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are undefined and must be zero.
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@retval EFI_SUCCESS The requested attribute is set.
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@retval EFI_DEVICE_ERROR The requested attribute cannot be set due to serial port error.
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@retval EFI_UNSUPPORTED The attribute requested is not defined by EFI spec.
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**/
|
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EFI_STATUS
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EFIAPI
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TerminalConOutSetAttribute (
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IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
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IN UINTN Attribute
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)
|
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{
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UINT8 ForegroundControl;
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UINT8 BackgroundControl;
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UINT8 BrightControl;
|
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INT32 SavedColumn;
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INT32 SavedRow;
|
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EFI_STATUS Status;
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TERMINAL_DEV *TerminalDevice;
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|
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SavedColumn = 0;
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SavedRow = 0;
|
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|
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//
|
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// get Terminal device data structure pointer.
|
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//
|
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TerminalDevice = TERMINAL_CON_OUT_DEV_FROM_THIS (This);
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|
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//
|
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// only the bit0..6 of the Attribute is valid
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//
|
|
if ((Attribute | 0x7f) != 0x7f) {
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|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
//
|
|
// Skip outputting the command string for the same attribute
|
|
// It improves the terminal performance significantly
|
|
//
|
|
if (This->Mode->Attribute == (INT32) Attribute) {
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
//
|
|
// convert Attribute value to terminal emulator
|
|
// understandable foreground color
|
|
//
|
|
switch (Attribute & 0x07) {
|
|
|
|
case EFI_BLACK:
|
|
ForegroundControl = 30;
|
|
break;
|
|
|
|
case EFI_BLUE:
|
|
ForegroundControl = 34;
|
|
break;
|
|
|
|
case EFI_GREEN:
|
|
ForegroundControl = 32;
|
|
break;
|
|
|
|
case EFI_CYAN:
|
|
ForegroundControl = 36;
|
|
break;
|
|
|
|
case EFI_RED:
|
|
ForegroundControl = 31;
|
|
break;
|
|
|
|
case EFI_MAGENTA:
|
|
ForegroundControl = 35;
|
|
break;
|
|
|
|
case EFI_BROWN:
|
|
ForegroundControl = 33;
|
|
break;
|
|
|
|
default:
|
|
|
|
case EFI_LIGHTGRAY:
|
|
ForegroundControl = 37;
|
|
break;
|
|
|
|
}
|
|
//
|
|
// bit4 of the Attribute indicates bright control
|
|
// of terminal emulator.
|
|
//
|
|
BrightControl = (UINT8) ((Attribute >> 3) & 1);
|
|
|
|
//
|
|
// convert Attribute value to terminal emulator
|
|
// understandable background color.
|
|
//
|
|
switch ((Attribute >> 4) & 0x07) {
|
|
|
|
case EFI_BLACK:
|
|
BackgroundControl = 40;
|
|
break;
|
|
|
|
case EFI_BLUE:
|
|
BackgroundControl = 44;
|
|
break;
|
|
|
|
case EFI_GREEN:
|
|
BackgroundControl = 42;
|
|
break;
|
|
|
|
case EFI_CYAN:
|
|
BackgroundControl = 46;
|
|
break;
|
|
|
|
case EFI_RED:
|
|
BackgroundControl = 41;
|
|
break;
|
|
|
|
case EFI_MAGENTA:
|
|
BackgroundControl = 45;
|
|
break;
|
|
|
|
case EFI_BROWN:
|
|
BackgroundControl = 43;
|
|
break;
|
|
|
|
default:
|
|
|
|
case EFI_LIGHTGRAY:
|
|
BackgroundControl = 47;
|
|
break;
|
|
}
|
|
//
|
|
// terminal emulator's control sequence to set attributes
|
|
//
|
|
mSetAttributeString[BRIGHT_CONTROL_OFFSET] = (CHAR16) ('0' + BrightControl);
|
|
mSetAttributeString[FOREGROUND_CONTROL_OFFSET + 0] = (CHAR16) ('0' + (ForegroundControl / 10));
|
|
mSetAttributeString[FOREGROUND_CONTROL_OFFSET + 1] = (CHAR16) ('0' + (ForegroundControl % 10));
|
|
mSetAttributeString[BACKGROUND_CONTROL_OFFSET + 0] = (CHAR16) ('0' + (BackgroundControl / 10));
|
|
mSetAttributeString[BACKGROUND_CONTROL_OFFSET + 1] = (CHAR16) ('0' + (BackgroundControl % 10));
|
|
|
|
//
|
|
// save current column and row
|
|
// for future scrolling back use.
|
|
//
|
|
SavedColumn = This->Mode->CursorColumn;
|
|
SavedRow = This->Mode->CursorRow;
|
|
|
|
TerminalDevice->OutputEscChar = TRUE;
|
|
Status = This->OutputString (This, mSetAttributeString);
|
|
TerminalDevice->OutputEscChar = FALSE;
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
return EFI_DEVICE_ERROR;
|
|
}
|
|
//
|
|
// scroll back to saved cursor position.
|
|
//
|
|
This->Mode->CursorColumn = SavedColumn;
|
|
This->Mode->CursorRow = SavedRow;
|
|
|
|
This->Mode->Attribute = (INT32) Attribute;
|
|
|
|
return EFI_SUCCESS;
|
|
|
|
}
|
|
|
|
|
|
/**
|
|
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
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
TERMINAL_DEV *TerminalDevice;
|
|
|
|
TerminalDevice = TERMINAL_CON_OUT_DEV_FROM_THIS (This);
|
|
|
|
//
|
|
// control sequence for clear screen request
|
|
//
|
|
TerminalDevice->OutputEscChar = TRUE;
|
|
Status = This->OutputString (This, mClearScreenString);
|
|
TerminalDevice->OutputEscChar = FALSE;
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
return EFI_DEVICE_ERROR;
|
|
}
|
|
|
|
Status = This->SetCursorPosition (This, 0, 0);
|
|
|
|
return Status;
|
|
}
|
|
|
|
|
|
/**
|
|
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
|
|
)
|
|
{
|
|
EFI_SIMPLE_TEXT_OUTPUT_MODE *Mode;
|
|
UINTN MaxColumn;
|
|
UINTN MaxRow;
|
|
EFI_STATUS Status;
|
|
TERMINAL_DEV *TerminalDevice;
|
|
|
|
TerminalDevice = TERMINAL_CON_OUT_DEV_FROM_THIS (This);
|
|
|
|
//
|
|
// get current mode
|
|
//
|
|
Mode = This->Mode;
|
|
|
|
//
|
|
// get geometry of current mode
|
|
//
|
|
Status = This->QueryMode (
|
|
This,
|
|
Mode->Mode,
|
|
&MaxColumn,
|
|
&MaxRow
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
if (Column >= MaxColumn || Row >= MaxRow) {
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
//
|
|
// control sequence to move the cursor
|
|
//
|
|
mSetCursorPositionString[ROW_OFFSET + 0] = (CHAR16) ('0' + ((Row + 1) / 10));
|
|
mSetCursorPositionString[ROW_OFFSET + 1] = (CHAR16) ('0' + ((Row + 1) % 10));
|
|
mSetCursorPositionString[COLUMN_OFFSET + 0] = (CHAR16) ('0' + ((Column + 1) / 10));
|
|
mSetCursorPositionString[COLUMN_OFFSET + 1] = (CHAR16) ('0' + ((Column + 1) % 10));
|
|
|
|
TerminalDevice->OutputEscChar = TRUE;
|
|
Status = This->OutputString (This, mSetCursorPositionString);
|
|
TerminalDevice->OutputEscChar = FALSE;
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
return EFI_DEVICE_ERROR;
|
|
}
|
|
//
|
|
// update current cursor position
|
|
// in the Mode data structure.
|
|
//
|
|
Mode->CursorColumn = (INT32) Column;
|
|
Mode->CursorRow = (INT32) Row;
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
|
|
/**
|
|
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
|
|
)
|
|
{
|
|
if (!Visible) {
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
|
|
/**
|
|
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
|
|
)
|
|
{
|
|
UNICODE_TO_CHAR *Table;
|
|
|
|
if ((((Graphic & 0xff00) != 0x2500) && ((Graphic & 0xff00) != 0x2100))) {
|
|
//
|
|
// Unicode drawing code charts are all in the 0x25xx range,
|
|
// arrows are 0x21xx
|
|
//
|
|
return FALSE;
|
|
}
|
|
|
|
for (Table = UnicodeToPcAnsiOrAscii; Table->Unicode != 0x0000; Table++) {
|
|
if (Graphic == Table->Unicode) {
|
|
if (PcAnsi != NULL) {
|
|
*PcAnsi = Table->PcAnsi;
|
|
}
|
|
|
|
if (Ascii != NULL) {
|
|
*Ascii = Table->Ascii;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
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
|
|
)
|
|
{
|
|
//
|
|
// valid ascii code lies in the extent of 0x20 ~ 0x7f
|
|
//
|
|
if ((Ascii >= 0x20) && (Ascii <= 0x7f)) {
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
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
|
|
)
|
|
{
|
|
//
|
|
// only support four control characters.
|
|
//
|
|
if (CharC == CHAR_NULL ||
|
|
CharC == CHAR_BACKSPACE ||
|
|
CharC == CHAR_LINEFEED ||
|
|
CharC == CHAR_CARRIAGE_RETURN ||
|
|
CharC == CHAR_TAB
|
|
) {
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|