C++ (Cpp) Out8042Command Examples

Example #1

File: CommPs2.c Project: M1cha/edk2

/**
  Issue self test command via IsaIo interface.

  @return EFI_SUCCESS  Success to do keyboard self testing.
  @return others       Fail to do keyboard self testing.
**/
EFI_STATUS
KbcSelfTest (
  VOID
  )
{
  EFI_STATUS  Status;
  UINT8       Data;

  //
  // Keyboard controller self test
  //
  Status = Out8042Command (SELF_TEST);
  if (EFI_ERROR (Status)) {
    return Status;
  }
  //
  // Read return code
  //
  Status = In8042Data (&Data);
  if (EFI_ERROR (Status)) {
    return Status;
  }

  if (Data != 0x55) {
    return EFI_DEVICE_ERROR;
  }
  //
  // Set system flag
  //
  Status = Out8042Command (READ_CMD_BYTE);
  if (EFI_ERROR (Status)) {
    return Status;
  }

  Status = In8042Data (&Data);
  if (EFI_ERROR (Status)) {
    return Status;
  }

  Status = Out8042Command (WRITE_CMD_BYTE);
  if (EFI_ERROR (Status)) {
    return Status;
  }

  Data |= CMD_SYS_FLAG;
  Status = Out8042Data (Data);
  if (EFI_ERROR (Status)) {
    return Status;
  }

  return EFI_SUCCESS;
}

Example #2

File: CommPs2.c Project: M1cha/edk2

/**
  Issue command to check keyboard status.

  @param KeyboardEnable return whether keyboard is enable.

  @return Status of command issuing.
**/
EFI_STATUS
CheckKbStatus (
  OUT BOOLEAN                             *KeyboardEnable
  )
{
  EFI_STATUS  Status;
  UINT8       Data;

  //
  // Send command to read KBC command byte
  //
  Status = Out8042Command (READ_CMD_BYTE);
  if (EFI_ERROR (Status)) {
    return Status;
  }

  Status = In8042Data (&Data);
  if (EFI_ERROR (Status)) {
    return Status;
  }
  //
  // Check keyboard enable or not
  //
  if ((Data & CMD_KB_STS) == CMD_KB_DIS) {
    *KeyboardEnable = FALSE;
  } else {
    *KeyboardEnable = TRUE;
  }

  return EFI_SUCCESS;
}

Example #3

File: CommPs2.c Project: M1cha/edk2

/**
  Issue command to enable keyboard AUX functionality.

  @return Status of command issuing.
**/
EFI_STATUS
KbcEnableAux (
  VOID
  )
{
  //
  // Send 8042 enable mouse command
  //
  return Out8042Command (ENABLE_AUX);
}

Example #4

File: CommPs2.c Project: M1cha/edk2

/**
  Issue command to disable keyboard.

  @return Status of command issuing.
**/
EFI_STATUS
KbcDisableKb (
  VOID
  )
{
  //
  // Send 8042 disable keyboard command
  //
  return Out8042Command (DISABLE_KB);
}

Example #5

File: CommPs2.c Project: M1cha/edk2

/**
  Issue command to enable keyboard.

  @param IsaIo  Pointer to instance of EFI_ISA_IO_PROTOCOL

  @return Status of command issuing.
**/
EFI_STATUS
KbcEnableKb (
  VOID
  )
{
  //
  // Send 8042 enable keyboard command
  //
  return Out8042Command (ENABLE_KB);
}

Example #6

File: CommPs2.c Project: M1cha/edk2

/**
  Issue command to disable keyboard AUX functionality.

  @param IsaIo  Pointer to instance of EFI_ISA_IO_PROTOCOL

  @return Status of command issuing.
**/
EFI_STATUS
KbcDisableAux (
  VOID
  )
{
  //
  // Send 8042 disable mouse command
  //
  return Out8042Command (DISABLE_AUX);
}

Example #7

File: CommPs2.c Project: etiago/vbox

/**
  Issue command to enable keyboard AUX functionality.
  
  @param IsaIo  Pointer to instance of EFI_ISA_IO_PROTOCOL
  
  @return Status of command issuing.
**/
EFI_STATUS
KbcEnableAux (
  IN EFI_ISA_IO_PROTOCOL                  *IsaIo
  )
{
  //
  // Send 8042 enable mouse command
  //
  return Out8042Command (IsaIo, ENABLE_AUX);
}

Example #8

File: CommPs2.c Project: etiago/vbox

/**
  Issue command to disable keyboard.
  
  @param IsaIo  Pointer to instance of EFI_ISA_IO_PROTOCOL
  
  @return Status of command issuing.
**/
EFI_STATUS
KbcDisableKb (
  IN EFI_ISA_IO_PROTOCOL                  *IsaIo
  )
{
  //
  // Send 8042 disable keyboard command
  //
  return Out8042Command (IsaIo, DISABLE_KB);
}