129 lines
4.7 KiB
Diff
129 lines
4.7 KiB
Diff
From 84e29eaec51ad2365674fbbaa6556c456b983367 Mon Sep 17 00:00:00 2001
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From: Laszlo Ersek <lersek@redhat.com>
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Date: Tue, 25 Feb 2014 22:40:01 +0100
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Subject: [PATCH] MdeModulePkg: TerminalDxe: set xterm resolution on mode
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change (RH only)
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The
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CSI Ps ; Ps ; Ps t
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escape sequence serves for window manipulation. We can use the
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CSI 8 ; <rows> ; <columns> t
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sequence to adapt eg. the xterm window size to the selected console mode.
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Notes about the 20160608b-988715a -> 20170228-c325e41585e3 rebase:
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- refresh commit 519b9751573e against various context changes
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Notes about the 20170228-c325e41585e3 -> 20171011-92d07e48907f rebase:
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- Refresh downstream-only commit 2909e025db68 against "MdeModulePkg.dec"
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context change from upstream commits e043f7895b83 ("MdeModulePkg: Add
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PCD PcdPteMemoryEncryptionAddressOrMask", 2017-02-27) and 76081dfcc5b2
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("MdeModulePkg: Add PROMPT&HELP string of pcd to UNI file", 2017-03-03).
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Reference: <http://rtfm.etla.org/xterm/ctlseq.html>
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Contributed-under: TianoCore Contribution Agreement 1.0
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Signed-off-by: Laszlo Ersek <lersek@redhat.com>
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(cherry picked from commit 2909e025db6878723b49644a8a0cf160d07e6444)
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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---
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MdeModulePkg/MdeModulePkg.dec | 4 +++
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.../Console/TerminalDxe/TerminalConOut.c | 30 +++++++++++++++++++
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.../Console/TerminalDxe/TerminalDxe.inf | 2 ++
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3 files changed, 36 insertions(+)
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diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
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index a2130bc439..dcd118ba62 100644
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--- a/MdeModulePkg/MdeModulePkg.dec
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+++ b/MdeModulePkg/MdeModulePkg.dec
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@@ -1968,6 +1968,10 @@
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# @Prompt The address mask when memory encryption is enabled.
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gEfiMdeModulePkgTokenSpaceGuid.PcdPteMemoryEncryptionAddressOrMask|0x0|UINT64|0x30001047
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+ ## Controls whether TerminalDxe outputs an XTerm resize sequence on terminal
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+ # mode change.
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+ gEfiMdeModulePkgTokenSpaceGuid.PcdResizeXterm|FALSE|BOOLEAN|0x00010080
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+
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[PcdsPatchableInModule]
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## Specify memory size with page number for PEI code when
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# Loading Module at Fixed Address feature is enabled.
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diff --git a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConOut.c b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConOut.c
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index 4d7218e415..295e7641a5 100644
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--- a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConOut.c
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+++ b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConOut.c
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@@ -13,6 +13,8 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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+#include <Library/PrintLib.h>
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+
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#include "Terminal.h"
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//
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@@ -86,6 +88,16 @@ CHAR16 mSetCursorPositionString[] = { ESC, '[', '0', '0', ';', '0', '0', 'H', 0
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CHAR16 mCursorForwardString[] = { ESC, '[', '0', '0', 'C', 0 };
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CHAR16 mCursorBackwardString[] = { ESC, '[', '0', '0', 'D', 0 };
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+//
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+// Note that this is an ASCII format string, taking two INT32 arguments:
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+// rows, columns.
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+//
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+// A %d (INT32) format specification can expand to at most 11 characters.
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+//
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+CHAR8 mResizeTextAreaFormatString[] = "\x1B[8;%d;%dt";
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+#define RESIZE_SEQ_SIZE (sizeof mResizeTextAreaFormatString + 2 * (11 - 2))
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+
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+
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//
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// Body of the ConOut functions
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//
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@@ -508,6 +520,24 @@ TerminalConOutSetMode (
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return EFI_DEVICE_ERROR;
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}
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+ if (PcdGetBool (PcdResizeXterm)) {
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+ CHAR16 ResizeSequence[RESIZE_SEQ_SIZE];
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+
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+ UnicodeSPrintAsciiFormat (
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+ ResizeSequence,
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+ sizeof ResizeSequence,
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+ mResizeTextAreaFormatString,
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+ (INT32) TerminalDevice->TerminalConsoleModeData[ModeNumber].Rows,
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+ (INT32) TerminalDevice->TerminalConsoleModeData[ModeNumber].Columns
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+ );
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+ TerminalDevice->OutputEscChar = TRUE;
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+ Status = This->OutputString (This, ResizeSequence);
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+ TerminalDevice->OutputEscChar = FALSE;
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+ if (EFI_ERROR (Status)) {
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+ return EFI_DEVICE_ERROR;
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+ }
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+ }
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+
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This->Mode->Mode = (INT32) ModeNumber;
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Status = This->ClearScreen (This);
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diff --git a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalDxe.inf b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalDxe.inf
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index 15b4ac1c33..a704bc17e5 100644
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--- a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalDxe.inf
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+++ b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalDxe.inf
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@@ -60,6 +60,7 @@
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DebugLib
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PcdLib
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BaseLib
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+ PrintLib
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[Guids]
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## SOMETIMES_PRODUCES ## Variable:L"ConInDev"
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@@ -88,6 +89,7 @@
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[Pcd]
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gEfiMdePkgTokenSpaceGuid.PcdDefaultTerminalType ## SOMETIMES_CONSUMES
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gEfiMdeModulePkgTokenSpaceGuid.PcdErrorCodeSetVariable ## CONSUMES
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+ gEfiMdeModulePkgTokenSpaceGuid.PcdResizeXterm ## CONSUMES
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# [Event]
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# # Relative timer event set by UnicodeToEfiKey(), used to be one 2 seconds input timeout.
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