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