From 8fd6e63635f50b2dc9e950056f17c1688107647d Mon Sep 17 00:00:00 2001

From: Laszlo Ersek <lersek@redhat.com>

Date: Tue, 25 Feb 2014 22:40:01 +0100

Subject: [PATCH 05/21] MdeModulePkg: TerminalDxe: set xterm resolution on mode

 change (RH only)

Notes about the RHEL-8.3/20200603-ca407c7246bf [edk2-stable202005] ->

RHEL-8.5/20210520-e1999b264f1f [edk2-stable202105] rebase:

- Resolve harmless conflict in "MdeModulePkg/MdeModulePkg.dec",

  originating from new upstream commits

  - 45bc28172fbf ("MdeModulePkg.dec: Change PCDs for status code.",

                  2020-06-18),

  - 0785c619a58a ("MdeModulePkg/Bus/Pci/PciBusDxe: Support PCIe Resizable

                  BAR Capability", 2021-01-04),

  - ef23012e5439 ("MdeModulePkg: Change default value of

                  PcdPcieResizableBarSupport to FALSE", 2021-01-14).

Notes about the RHEL-8.2/20190904-37eef91017ad [edk2-stable201908] ->

RHEL-8.3/20200603-ca407c7246bf [edk2-stable202005] rebase:

- Resolve trivial conflict in "MdeModulePkg/MdeModulePkg.dec", arising

  from upstream commit 166830d8f7ca ("MdeModulePkg/dec: add

  PcdTcgPfpMeasurementRevision PCD", 2020-01-06).

Notes about the RHEL-8.1/20190308-89910a39dcfd [edk2-stable201903] ->

RHEL-8.2/20190904-37eef91017ad [edk2-stable201908] rebase:

- Conflict in "MdeModulePkg/MdeModulePkg.dec" due to upstream commits

  - 1103ba946aee ("MdeModulePkg: Add Capsule On Disk related definition.",

    2019-06-26),

  - 1c7b3eb84631 ("MdeModulePkg/DxeIpl: Introduce PCD

    PcdUse5LevelPageTable", 2019-08-09),

  with easy manual resolution.

Notes about the RHEL-8.0/20180508-ee3198e672e2 ->

RHEL-8.1/20190308-89910a39dcfd rebase:

- no change

Notes about the RHEL-7.6/ovmf-20180508-2.gitee3198e672e2.el7 ->

RHEL-8.0/20180508-ee3198e672e2 rebase:

- reorder the rebase changelog in the commit message so that it reads like

  a blog: place more recent entries near the top

- no changes to the patch body

Notes about the 20171011-92d07e48907f -> 20180508-ee3198e672e2 rebase:

- no change

Notes about the 20170228-c325e41585e3 -> 20171011-92d07e48907f rebase:

- Refresh downstream-only commit 2909e025db68 against "MdeModulePkg.dec"

  context change from upstream commits e043f7895b83 ("MdeModulePkg: Add

  PCD PcdPteMemoryEncryptionAddressOrMask", 2017-02-27) and 76081dfcc5b2

  ("MdeModulePkg: Add PROMPT&HELP string of pcd to UNI file", 2017-03-03).

Notes about the 20160608b-988715a -> 20170228-c325e41585e3 rebase:

- refresh commit 519b9751573e against various context changes

The

  CSI Ps ; Ps ; Ps t

escape sequence serves for window manipulation. We can use the

  CSI 8 ; <rows> ; <columns> t

sequence to adapt eg. the xterm window size to the selected console mode.

Reference: <http://rtfm.etla.org/xterm/ctlseq.html>

Contributed-under: TianoCore Contribution Agreement 1.0

Signed-off-by: Laszlo Ersek <lersek@redhat.com>

(cherry picked from commit 2909e025db6878723b49644a8a0cf160d07e6444)

(cherry picked from commit b9c5c901f25e48d68eef6e78a4abca00e153f574)

(cherry picked from commit b7f6115b745de8cbc5214b6ede33c9a8558beb90)

(cherry picked from commit 67415982afdc77922aa37496c981adeb4351acdb)

(cherry picked from commit cfccb98d13e955beb0b93b4a75a973f30c273ffc)

(cherry picked from commit a11602f5e2ef930be5b693ddfd0c789a1bd4c60c)

(cherry picked from commit bc2266f20de5db1636e09a07e4a72c8dbf505f5a)

---

 MdeModulePkg/MdeModulePkg.dec                 |  4 +++

 .../Console/TerminalDxe/TerminalDxe.inf       |  2 ++

 .../Console/TerminalDxe/TerminalConOut.c      | 29 +++++++++++++++++++

 3 files changed, 35 insertions(+)

diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec

index f549276b8061..1415766054be 100644

--- a/MdeModulePkg/MdeModulePkg.dec

+++ b/MdeModulePkg/MdeModulePkg.dec

@@ -2092,6 +2092,10 @@ [PcdsFixedAtBuild, PcdsPatchableInModule, PcdsDynamic, PcdsDynamicEx]

   # @Prompt The shared bit mask when Intel Tdx is enabled.

   gEfiMdeModulePkgTokenSpaceGuid.PcdTdxSharedBitMask|0x0|UINT64|0x10000025

+  ## Controls whether TerminalDxe outputs an XTerm resize sequence on terminal

+  #  mode change.

+  gEfiMdeModulePkgTokenSpaceGuid.PcdResizeXterm|FALSE|BOOLEAN|0x00010080

+

 [PcdsPatchableInModule]

   ## Specify memory size with page number for PEI code when

   #  Loading Module at Fixed Address feature is enabled.

diff --git a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalDxe.inf b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalDxe.inf

index b2a8aeba8510..eff625346539 100644

--- a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalDxe.inf

+++ b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalDxe.inf

@@ -55,6 +55,7 @@ [LibraryClasses]

   DebugLib

   PcdLib

   BaseLib

+  PrintLib

 [Guids]

   ## SOMETIMES_PRODUCES ## Variable:L"ConInDev"

@@ -87,6 +88,7 @@ [Protocols]

 [Pcd]

   gEfiMdePkgTokenSpaceGuid.PcdDefaultTerminalType           ## SOMETIMES_CONSUMES

   gEfiMdeModulePkgTokenSpaceGuid.PcdErrorCodeSetVariable    ## CONSUMES

+  gEfiMdeModulePkgTokenSpaceGuid.PcdResizeXterm             ## CONSUMES

 # [Event]

 # # Relative timer event set by UnicodeToEfiKey(), used to be one 2 seconds input timeout.

diff --git a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConOut.c b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConOut.c

index 7809869e7d49..496849458db4 100644

--- a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConOut.c

+++ b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConOut.c

@@ -7,6 +7,8 @@ SPDX-License-Identifier: BSD-2-Clause-Patent

 **/

+#include <Library/PrintLib.h>

+

 #include "Terminal.h"

 //

@@ -80,6 +82,15 @@ CHAR16  mSetCursorPositionString[] = { ESC, '[', '0', '0', ';', '0', '0', 'H', 0

 CHAR16  mCursorForwardString[]     = { ESC, '[', '0', '0', 'C', 0 };

 CHAR16  mCursorBackwardString[]    = { ESC, '[', '0', '0', 'D', 0 };

+//

+// Note that this is an ASCII format string, taking two INT32 arguments:

+// rows, columns.

+//

+// A %d (INT32) format specification can expand to at most 11 characters.

+//

+CHAR8  mResizeTextAreaFormatString[] = "\x1B[8;%d;%dt";

+#define RESIZE_SEQ_SIZE  (sizeof mResizeTextAreaFormatString + 2 * (11 - 2))

+

 //

 // Body of the ConOut functions

 //

@@ -498,6 +509,24 @@ TerminalConOutSetMode (

     return EFI_DEVICE_ERROR;

   }

+  if (PcdGetBool (PcdResizeXterm)) {

+    CHAR16  ResizeSequence[RESIZE_SEQ_SIZE];

+

+    UnicodeSPrintAsciiFormat (

+      ResizeSequence,

+      sizeof ResizeSequence,

+      mResizeTextAreaFormatString,

+      (INT32)TerminalDevice->TerminalConsoleModeData[ModeNumber].Rows,

+      (INT32)TerminalDevice->TerminalConsoleModeData[ModeNumber].Columns

+      );

+    TerminalDevice->OutputEscChar = TRUE;

+    Status                        = This->OutputString (This, ResizeSequence);

+    TerminalDevice->OutputEscChar = FALSE;

+    if (EFI_ERROR (Status)) {

+      return EFI_DEVICE_ERROR;

+    }

+  }

+

   This->Mode->Mode = (INT32)ModeNumber;

   Status = This->ClearScreen (This);

-- 

2.35.3