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ShellPkg/SerMode: Add name conversion arrays for parity/stop bits

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Add name conversion arrays:
- ParityBitName
- StopBitsName
to seamlessly convert parity/stop bits to a matching name.

No functional change.

Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
This commit is contained in:
Pierre Gondois 2026-04-02 14:20:58 +02:00 • committed by mergify[bot]
parent e146b012f5
commit 06372c8df1
1 changed files with 36 additions and 61 deletions
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97
ShellPkg/Library/UefiShellDebug1CommandsLib/SerMode.c
View file

@ -11,6 +11,28 @@
#include <Library/ShellLib.h>
#include <Protocol/SerialIo.h>
//
// Name translation for the Parity Bit
//
STATIC CONST CHAR8 ParityBitName[] = {
[DefaultParity] = 'D',
[NoParity] = 'N',
[EvenParity] = 'E',
[OddParity] = 'O',
[MarkParity] = 'M',
[SpaceParity] = 'S',
};
//
// Name translation for the Stop Bits
//
STATIC CONST CHAR16 *StopBitsName[] = {
[DefaultStopBits] = L"Default",
[OneStopBit] = L"1",
[OneFiveStopBits] = L"1.5",
[TwoStopBits] = L"2",
};
/**
Display information about a serial device by it's handle.
@ -33,12 +55,11 @@ DisplaySettings (
EFI_HANDLE *Handles;
EFI_STATUS Status;
UINTN Index;
CHAR16 *StopBits;
CONST CHAR16 *StopBits;
CHAR16 Parity;
SHELL_STATUS ShellStatus;
Handles = NULL;
StopBits = NULL;
Handles = NULL;
ShellStatus = SHELL_SUCCESS;
@ -57,66 +78,20 @@ DisplaySettings (
Status = gBS->HandleProtocol (Handles[Index], &gEfiSerialIoProtocolGuid, (VOID **)&SerialIo);
if (!EFI_ERROR (Status)) {
switch (SerialIo->Mode->Parity) {
case DefaultParity:
Parity = 'D';
break;
case NoParity:
Parity = 'N';
break;
case EvenParity:
Parity = 'E';
break;
case OddParity:
Parity = 'O';
break;
case MarkParity:
Parity = 'M';
break;
case SpaceParity:
Parity = 'S';
break;
default:
Parity = 'U';
if ((SerialIo->Mode->Parity >= DefaultParity) &&
(SerialIo->Mode->Parity <= SpaceParity))
{
Parity = ParityBitName[SerialIo->Mode->Parity];
} else {
Parity = 'U';
}
switch (SerialIo->Mode->StopBits) {
case DefaultStopBits:
StopBits = L"Default";
break;
case OneStopBit:
StopBits = L"1";
break;
case TwoStopBits:
StopBits = L"2";
break;
case OneFiveStopBits:
StopBits = L"1.5";
break;
default:
StopBits = L"Unknown";
if ((SerialIo->Mode->StopBits >= DefaultStopBits) &&
(SerialIo->Mode->StopBits <= TwoStopBits))
{
StopBits = StopBitsName[SerialIo->Mode->StopBits];
} else {
StopBits = L"Unknown";
}
ShellPrintHiiDefaultEx (