1 /** @file 2 Header file of Serial port hardware definition. 3 4 Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR> 5 6 7 This program and the accompanying materials are licensed and made available under 8 9 the terms and conditions of the BSD License that accompanies this distribution. 10 11 The full text of the license may be found at 12 13 http://opensource.org/licenses/bsd-license.php. 14 15 16 17 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 18 19 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 20 21 22 23 This software and associated documentation 24 (if any) is furnished under a license and may only be used or 25 copied in accordance with the terms of the license. Except as 26 permitted by such license, no part of this software or 27 documentation may be reproduced, stored in a retrieval system, or 28 transmitted in any form or by any means without the express written 29 consent of Intel Corporation. 30 31 Module Name: PlatformSerialPortLib.h 32 33 **/ 34 35 #ifndef __PLATFORM_SERIAL_PORT_LIB_H_ 36 #define __PLATFORM_SERIAL_PORT_LIB_H_ 37 38 #include <Base.h> 39 #include <Library/BaseLib.h> 40 #include <Library/IoLib.h> 41 #include <Library/PcdLib.h> 42 #include <Library/SerialPortLib.h> 43 44 // 45 // UART Register Offsets 46 // 47 #define BAUD_LOW_OFFSET 0x00 48 #define BAUD_HIGH_OFFSET 0x01 49 #define IER_OFFSET 0x01 50 #define LCR_SHADOW_OFFSET 0x01 51 #define FCR_SHADOW_OFFSET 0x02 52 #define IR_CONTROL_OFFSET 0x02 53 #define FCR_OFFSET 0x02 54 #define EIR_OFFSET 0x02 55 #define BSR_OFFSET 0x03 56 #define LCR_OFFSET 0x03 57 #define MCR_OFFSET 0x04 58 #define LSR_OFFSET 0x05 59 #define MSR_OFFSET 0x06 60 61 // 62 // UART Register Bit Defines 63 // 64 #define LSR_TXRDY 0x20 65 #define LSR_RXDA 0x01 66 #define DLAB 0x01 67 68 #define UART_DATA 8 69 #define UART_STOP 1 70 #define UART_PARITY 0 71 #define UART_BREAK_SET 0 72 73 VOID 74 InitializeSio ( 75 VOID 76 ); 77 78 #endif 79