| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2001 MontaVista Software Inc. |
| 3 | * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License as published by the |
| 7 | * Free Software Foundation; either version 2 of the License, or (at your |
| 8 | * option) any later version. |
| 9 | * |
| 10 | */ |
| 11 | |
| 12 | #ifndef _uart16550_h_ |
| 13 | #define _uart16550_h_ |
| 14 | |
| 15 | typedef unsigned char uint8; |
| 16 | typedef unsigned int uint32; |
| 17 | |
| 18 | #define UART16550_BAUD_2400 2400 |
| 19 | #define UART16550_BAUD_4800 4800 |
| 20 | #define UART16550_BAUD_9600 9600 |
| 21 | #define UART16550_BAUD_19200 19200 |
| 22 | #define UART16550_BAUD_38400 38400 |
| 23 | #define UART16550_BAUD_57600 57600 |
| 24 | #define UART16550_BAUD_115200 115200 |
| 25 | |
| 26 | #define UART16550_PARITY_NONE 0 |
| 27 | #define UART16550_PARITY_ODD 0x08 |
| 28 | #define UART16550_PARITY_EVEN 0x18 |
| 29 | #define UART16550_PARITY_MARK 0x28 |
| 30 | #define UART16550_PARITY_SPACE 0x38 |
| 31 | |
| 32 | #define UART16550_DATA_5BIT 0x0 |
| 33 | #define UART16550_DATA_6BIT 0x1 |
| 34 | #define UART16550_DATA_7BIT 0x2 |
| 35 | #define UART16550_DATA_8BIT 0x3 |
| 36 | |
| 37 | #define UART16550_STOP_1BIT 0x0 |
| 38 | #define UART16550_STOP_2BIT 0x4 |
| 39 | |
| 40 | void Uart16550Init(uint32 baud, uint8 data, uint8 parity, uint8 stop); |
| 41 | |
| 42 | /* blocking call */ |
| 43 | uint8 Uart16550GetPoll(); |
| 44 | |
| 45 | void Uart16550Put(uint8 byte); |
| 46 | |
| 47 | #endif |