|  | /* | 
|  | * Copyright (C) 2001 MontaVista Software Inc. | 
|  | * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net | 
|  | * | 
|  | * This program is free software; you can redistribute  it and/or modify it | 
|  | * under  the terms of  the GNU General  Public License as published by the | 
|  | * Free Software Foundation;  either version 2 of the  License, or (at your | 
|  | * option) any later version. | 
|  | * | 
|  | */ | 
|  |  | 
|  | #ifndef _uart16550_h_ | 
|  | #define _uart16550_h_ | 
|  |  | 
|  | typedef         unsigned char uint8; | 
|  | typedef         unsigned int  uint32; | 
|  |  | 
|  | #define         UART16550_BAUD_2400             2400 | 
|  | #define         UART16550_BAUD_4800             4800 | 
|  | #define         UART16550_BAUD_9600             9600 | 
|  | #define         UART16550_BAUD_19200            19200 | 
|  | #define         UART16550_BAUD_38400            38400 | 
|  | #define         UART16550_BAUD_57600            57600 | 
|  | #define         UART16550_BAUD_115200           115200 | 
|  |  | 
|  | #define         UART16550_PARITY_NONE           0 | 
|  | #define         UART16550_PARITY_ODD            0x08 | 
|  | #define         UART16550_PARITY_EVEN           0x18 | 
|  | #define         UART16550_PARITY_MARK           0x28 | 
|  | #define         UART16550_PARITY_SPACE          0x38 | 
|  |  | 
|  | #define         UART16550_DATA_5BIT             0x0 | 
|  | #define         UART16550_DATA_6BIT             0x1 | 
|  | #define         UART16550_DATA_7BIT             0x2 | 
|  | #define         UART16550_DATA_8BIT             0x3 | 
|  |  | 
|  | #define         UART16550_STOP_1BIT             0x0 | 
|  | #define         UART16550_STOP_2BIT             0x4 | 
|  |  | 
|  | void Uart16550Init(uint32 baud, uint8 data, uint8 parity, uint8 stop); | 
|  |  | 
|  | /* blocking call */ | 
|  | uint8 Uart16550GetPoll(); | 
|  |  | 
|  | void Uart16550Put(uint8 byte); | 
|  |  | 
|  | #endif |