/** @file
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Main file for NULL named library for Serial Port Terminal Redirection library.
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Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "SerialPortTerminalLib.h"
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GLOBAL_REMOVE_IF_UNREFERENCED SERIAL_DEVICE_PATH mSerialDevicePath = {
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{
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{
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HARDWARE_DEVICE_PATH,
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HW_VENDOR_DP,
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{
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(UINT8) sizeof (VENDOR_DEVICE_PATH),
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(UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)
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}
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},
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EDKII_SERIAL_PORT_LIB_VENDOR_GUID
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},
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{
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{
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MESSAGING_DEVICE_PATH,
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MSG_UART_DP,
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{
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(UINT8) sizeof (UART_DEVICE_PATH),
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(UINT8) ((sizeof (UART_DEVICE_PATH)) >> 8)
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}
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},
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0, // Reserved
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0, // BaudRate
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0, // DataBits
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0, // Parity
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0 // StopBits
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},
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{
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{
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MESSAGING_DEVICE_PATH,
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MSG_VENDOR_DP,
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{
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(UINT8) (sizeof (VENDOR_DEVICE_PATH)),
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(UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8),
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}
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},
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DEVICE_PATH_MESSAGING_PC_ANSI
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},
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gEndEntire
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};
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/**
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Updates the ConOut, ConIn, ErrOut variables with the serial terminal device path
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@param none
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@retval none
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**/
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VOID
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AddSerialTerminal (
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VOID
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)
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{
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DEBUG ((DEBUG_INFO, "[AddSerialPortTerminal]\n"));
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//
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// Append Serial Terminal into "ConIn"
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//
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EfiBootManagerUpdateConsoleVariable (ConOut, (EFI_DEVICE_PATH_PROTOCOL *) &mSerialDevicePath, NULL);
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EfiBootManagerUpdateConsoleVariable (ConIn, (EFI_DEVICE_PATH_PROTOCOL *) &mSerialDevicePath, NULL);
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EfiBootManagerUpdateConsoleVariable (ErrOut, (EFI_DEVICE_PATH_PROTOCOL *) &mSerialDevicePath, NULL);
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}
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/**
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Constructor for the Serial Port Device controller library.
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@param ImageHandle the image handle of the process
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@param SystemTable the EFI System Table pointer
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@retval EFI_SUCCESS the shell command handlers were installed sucessfully
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@retval EFI_UNSUPPORTED the shell level required was not found.
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**/
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EFI_STATUS
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EFIAPI
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SerialPortTerminalLibConstructor (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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mSerialDevicePath.Uart.BaudRate = PcdGet64(PcdUartDefaultBaudRate);
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mSerialDevicePath.Uart.DataBits = PcdGet8(PcdUartDefaultDataBits);
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mSerialDevicePath.Uart.Parity = PcdGet8(PcdUartDefaultParity);
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mSerialDevicePath.Uart.StopBits = PcdGet8(PcdUartDefaultStopBits);
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DEBUG ((DEBUG_INFO, "[SerialPortTerminalLibConstructor] [%d, %d, %d, %d]\n",
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mSerialDevicePath.Uart.BaudRate,
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mSerialDevicePath.Uart.DataBits,
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mSerialDevicePath.Uart.Parity,
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mSerialDevicePath.Uart.StopBits));
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AddSerialTerminal();
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return EFI_SUCCESS;
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}
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