UefiCpuPkg: Move AsmRelocateApLoopStart from Mpfuncs.nasm to AmdSev.nasm

[mirror_edk2.git] / EmbeddedPkg / Include / Library / GdbSerialLib.h

/** @file\r
  Basic serial IO abstraction for GDB\r
\r
  Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#ifndef __GDB_SERIAL_LIB_H__\r
#define __GDB_SERIAL_LIB_H__\r
\r
/**\r
  Sets the baud rate, receive FIFO depth, transmit/receive time out, parity,\r
  data buts, and stop bits on a serial device. This call is optional as the serial\r
  port will be set up with defaults base on PCD values.\r
\r
  @param  BaudRate         The requested baud rate. A BaudRate value of 0 will use the\r
                           device's default interface speed.\r
  @param  Parity           The type of parity to use on this serial device. A Parity value of\r
                           DefaultParity will use the device's default parity value.\r
  @param  DataBits         The number of data bits to use on the serial device. A DataBits\r
                           value of 0 will use the device's default data bit setting.\r
  @param  StopBits         The number of stop bits to use on this serial device. A StopBits\r
                           value of DefaultStopBits will use the device's default number of\r
                           stop bits.\r
\r
  @retval EFI_SUCCESS      The device was configured.\r
  @retval EFI_DEVICE_ERROR The serial device could not be configured.\r
\r
**/\r
RETURN_STATUS\r
EFIAPI\r
GdbSerialInit (\r
  IN UINT64  BaudRate,\r
  IN UINT8   Parity,\r
  IN UINT8   DataBits,\r
  IN UINT8   StopBits\r
  );\r
\r
/**\r
  Check to see if a character is available from GDB. Do not read the character as that is\r
  done via GdbGetChar().\r
\r
  @return TRUE  - Character available\r
  @return FALSE - Character not available\r
\r
**/\r
BOOLEAN\r
EFIAPI\r
GdbIsCharAvailable (\r
  VOID\r
  );\r
\r
/**\r
  Get a character from GDB. This function must be able to run in interrupt context.\r
\r
  @return A character from GDB\r
\r
**/\r
CHAR8\r
EFIAPI\r
GdbGetChar (\r
  VOID\r
  );\r
\r
/**\r
  Send a character to GDB. This function must be able to run in interrupt context.\r
\r
\r
  @param  Char    Send a character to GDB\r
\r
**/\r
\r
VOID\r
EFIAPI\r
GdbPutChar (\r
  IN  CHAR8  Char\r
  );\r
\r
/**\r
  Send an ASCII string to GDB. This function must be able to run in interrupt context.\r
\r
\r
  @param  String    Send a string to GDB\r
\r
**/\r
\r
VOID\r
GdbPutString (\r
  IN CHAR8  *String\r
  );\r
\r
#endif\r