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Maurice Ma
bd1ea24cc1
Current implementation assumes serial port is the only input console device supported. But other input console devices can be added later on. This patch added a ConsoleInLib to abstract the input console interfaces. It also added PCDs to control enabled input console devices. Signed-off-by: Maurice Ma <maurice.ma@intel.com>
56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
/** @file
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Header file for console input library
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Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef __CONSOLE_IN_H__
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#define __CONSOLE_IN_H__
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typedef enum {
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ConsoleInSerialPort = BIT0,
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ConsoleInUsbKeyboard = BIT1,
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ConsoleInAll = 0xFFFFFFFF,
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} CONSOLE_IN_DEVICE_TYPE;
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/**
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Poll a console to see if there is any data waiting to be read.
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@retval FALSE There is no data waiting to be read from the console.
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@retval TRUE Data is waiting to be read from the console.
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**/
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BOOLEAN
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EFIAPI
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ConsolePoll (
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VOID
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);
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/**
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Read data from a console device into a buffer.
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@param Buffer Pointer to the data buffer to store the data read from the console device.
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@param NumberOfBytes Number of bytes to read from the console device.
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@retval 0 NumberOfBytes is 0.
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@retval >0 The number of bytes read from the console device.
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If this value is less than NumberOfBytes, then the read operation failed.
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**/
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UINTN
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EFIAPI
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ConsoleRead (
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OUT UINT8 *Buffer,
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IN UINTN NumberOfBytes
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);
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#endif
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