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audk/ShellPkg/Library/UefiShellDebug1CommandsLib/SerMode.c

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/** @file
Main file for SerMode shell Debug1 function.
(C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "UefiShellDebug1CommandsLib.h"
#include <Library/ShellLib.h>
#include <Protocol/SerialIo.h>
/**
Display information about a serial device by it's handle.
If HandleValid is FALSE, do all devices.
@param[in] HandleIdx The handle index for the device.
@param[in] HandleValid TRUE if HandleIdx is valid.
@retval SHELL_INVALID_PARAMETER A parameter was invalid.
@retval SHELL_SUCCESS The operation was successful.
**/
SHELL_STATUS
DisplaySettings (
IN UINTN HandleIdx,
IN BOOLEAN HandleValid
)
{
EFI_SERIAL_IO_PROTOCOL *SerialIo;
UINTN NoHandles;
EFI_HANDLE *Handles;
EFI_STATUS Status;
UINTN Index;
CHAR16 *StopBits;
CHAR16 Parity;
SHELL_STATUS ShellStatus;
Handles = NULL;
StopBits = NULL;
ShellStatus = SHELL_SUCCESS;
Status = gBS->LocateHandleBuffer (ByProtocol, &gEfiSerialIoProtocolGuid, NULL, &NoHandles, &Handles);
if (EFI_ERROR (Status)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SERMODE_NO_FOUND), gShellDebug1HiiHandle, L"sermode");
return SHELL_INVALID_PARAMETER;
}
for (Index = 0; Index < NoHandles; Index++) {
if (HandleValid) {
if (ConvertHandleIndexToHandle (HandleIdx) != Handles[Index]) {
continue;
}
}
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';
}
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";
}
ShellPrintHiiEx (
-1,
-1,
NULL,
STRING_TOKEN (STR_SERMODE_DISPLAY),
gShellDebug1HiiHandle,
ConvertHandleToHandleIndex (Handles[Index]),
Handles[Index],
SerialIo->Mode->BaudRate,
Parity,
SerialIo->Mode->DataBits,
StopBits
);
} else {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SERMODE_NO_FOUND), gShellDebug1HiiHandle, L"sermode");
ShellStatus = SHELL_NOT_FOUND;
break;
}
if (HandleValid) {
break;
}
}
if (Index == NoHandles) {
if (((NoHandles != 0) && HandleValid) || (0 == NoHandles)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SERMODE_NOT_FOUND), gShellDebug1HiiHandle, L"sermode");
ShellStatus = SHELL_NOT_FOUND;
}
}
return ShellStatus;
}
/**
Function for 'sermode' command.
@param[in] ImageHandle Handle to the Image (NULL if Internal).
@param[in] SystemTable Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunSerMode (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
SHELL_STATUS ShellStatus;
UINTN Index;
UINTN NoHandles;
EFI_HANDLE *Handles;
EFI_PARITY_TYPE Parity;
EFI_STOP_BITS_TYPE StopBits;
UINTN HandleIdx;
UINTN BaudRate;
UINTN DataBits;
UINTN Value;
EFI_SERIAL_IO_PROTOCOL *SerialIo;
LIST_ENTRY *Package;
CHAR16 *ProblemParam;
CONST CHAR16 *Temp;
UINT64 Intermediate;
ShellStatus = SHELL_SUCCESS;
HandleIdx = 0;
Parity = DefaultParity;
Handles = NULL;
NoHandles = 0;
Index = 0;
Package = NULL;
Status = ShellCommandLineParse (EmptyParamList, &Package, &ProblemParam, TRUE);
if (EFI_ERROR (Status)) {
if ((Status == EFI_VOLUME_CORRUPTED) && (ProblemParam != NULL)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, L"sermode", ProblemParam);
FreePool (ProblemParam);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
ASSERT (FALSE);
}
} else {
if ((ShellCommandLineGetCount (Package) < 6) && (ShellCommandLineGetCount (Package) > 2)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellDebug1HiiHandle, L"sermode");
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (ShellCommandLineGetCount (Package) > 6) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle, L"sermode");
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
Temp = ShellCommandLineGetRawValue (Package, 1);
if (Temp != NULL) {
Status = ShellConvertStringToUint64 (Temp, &Intermediate, TRUE, FALSE);
HandleIdx = (UINTN)Intermediate;
Temp = ShellCommandLineGetRawValue (Package, 2);
if (Temp == NULL) {
ShellStatus = DisplaySettings (HandleIdx, TRUE);
goto Done;
}
} else {
ShellStatus = DisplaySettings (0, FALSE);
goto Done;
}
Temp = ShellCommandLineGetRawValue (Package, 2);
if (Temp != NULL) {
BaudRate = ShellStrToUintn (Temp);
} else {
ASSERT (FALSE);
BaudRate = 0;
}
Temp = ShellCommandLineGetRawValue (Package, 3);
if ((Temp == NULL) || (StrLen (Temp) > 1)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"sermode", Temp);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
switch (Temp[0]) {
case 'd':
case 'D':
Parity = DefaultParity;
break;
case 'n':
case 'N':
Parity = NoParity;
break;
case 'e':
case 'E':
Parity = EvenParity;
break;
case 'o':
case 'O':
Parity = OddParity;
break;
case 'm':
case 'M':
Parity = MarkParity;
break;
case 's':
case 'S':
Parity = SpaceParity;
break;
default:
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"sermode", Temp);
ShellStatus = SHELL_INVALID_PARAMETER;
goto Done;
}
}
Temp = ShellCommandLineGetRawValue (Package, 4);
if (Temp != NULL) {
DataBits = ShellStrToUintn (Temp);
} else {
//
// make sure this is some number not in the list below.
//
DataBits = 0;
}
switch (DataBits) {
case 4:
case 7:
case 8:
break;
default:
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"sermode", Temp);
ShellStatus = SHELL_INVALID_PARAMETER;
goto Done;
}
Temp = ShellCommandLineGetRawValue (Package, 5);
Value = ShellStrToUintn (Temp);
switch (Value) {
case 0:
StopBits = DefaultStopBits;
break;
case 1:
StopBits = OneStopBit;
break;
case 2:
StopBits = TwoStopBits;
break;
case 15:
StopBits = OneFiveStopBits;
break;
default:
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"sermode", Temp);
ShellStatus = SHELL_INVALID_PARAMETER;
goto Done;
}
Status = gBS->LocateHandleBuffer (ByProtocol, &gEfiSerialIoProtocolGuid, NULL, &NoHandles, &Handles);
if (EFI_ERROR (Status)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SERMODE_NO_FOUND), gShellDebug1HiiHandle, L"sermode");
ShellStatus = SHELL_INVALID_PARAMETER;
goto Done;
}
for (Index = 0; Index < NoHandles; Index++) {
if (ConvertHandleIndexToHandle (HandleIdx) != Handles[Index]) {
continue;
}
Status = gBS->HandleProtocol (Handles[Index], &gEfiSerialIoProtocolGuid, (VOID **)&SerialIo);
if (!EFI_ERROR (Status)) {
Status = SerialIo->SetAttributes (
SerialIo,
(UINT64)BaudRate,
SerialIo->Mode->ReceiveFifoDepth,
SerialIo->Mode->Timeout,
Parity,
(UINT8)DataBits,
StopBits
);
if (EFI_ERROR (Status)) {
if (Status == EFI_INVALID_PARAMETER) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SERMODE_SET_UNSUPPORTED), gShellDebug1HiiHandle, L"sermode", ConvertHandleToHandleIndex (Handles[Index]));
ShellStatus = SHELL_UNSUPPORTED;
} else if (Status == EFI_DEVICE_ERROR) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SERMODE_SET_DEV_ERROR), gShellDebug1HiiHandle, L"sermode", ConvertHandleToHandleIndex (Handles[Index]));
ShellStatus = SHELL_ACCESS_DENIED;
} else {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SERMODE_SET_FAIL), gShellDebug1HiiHandle, L"sermode", ConvertHandleToHandleIndex (Handles[Index]));
ShellStatus = SHELL_ACCESS_DENIED;
}
} else {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SERMODE_SET_HANDLE), gShellDebug1HiiHandle, ConvertHandleToHandleIndex (Handles[Index]));
}
break;
}
}
}
}
if ((ShellStatus == SHELL_SUCCESS) && (Index == NoHandles)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SERMODE_BAD_HANDLE), gShellDebug1HiiHandle, L"sermode", HandleIdx);
ShellStatus = SHELL_INVALID_PARAMETER;
}
Done:
if (Package != NULL) {
ShellCommandLineFreeVarList (Package);
}
if (Handles != NULL) {
FreePool (Handles);
}
return ShellStatus;
}
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