blob: b06c76d84a7aac1dab5c076c3bfa42b5238439a0 [file] [log] [blame]
wdenk39539882004-07-01 16:30:44 +00001#ifndef __UART_H
2#define __UART_H
3
4/*
5 * Copyright (c) 2004 Cucy Systems (http://www.cucy.com)
6 * Curt Brune <curt@cucy.com>
7 *
8 * See file CREDITS for list of people who contributed to this
9 * project.
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 * MA 02111-1307 USA
25 *
26 * Description: S3C4510B UART register layout
27 */
28
29/* UART LINE CONTROL register */
30typedef struct __BF_UART_LINE_CTRL {
31 u32 wordLen: 2;
32 u32 nStop: 1;
33 u32 parity: 3;
34 u32 clk: 1;
35 u32 infra_red: 1;
36 u32 unused:24;
37} BF_UART_LINE_CTRL;
38
39typedef union _UART_LINE_CTRL {
40 u32 ui;
41 BF_UART_LINE_CTRL bf;
42} UART_LINE_CTRL;
43
44/* UART CONTROL register */
45typedef struct __BF_UART_CTRL {
46 u32 rxMode: 2;
47 u32 rxIrq: 1;
48 u32 txMode: 2;
49 u32 DSR: 1;
50 u32 sendBreak: 1;
51 u32 loopBack: 1;
52 u32 unused:24;
53} BF_UART_CTRL;
54
55typedef union _UART_CTRL {
56 u32 ui;
57 BF_UART_CTRL bf;
58} UART_CTRL;
59
60/* UART STATUS register */
61typedef struct __BF_UART_STAT {
62 u32 overrun: 1;
63 u32 parity: 1;
64 u32 frame: 1;
65 u32 breakIrq: 1;
66 u32 DTR: 1;
67 u32 rxReady: 1;
68 u32 txBufEmpty: 1;
69 u32 txComplete: 1;
70 u32 unused:24;
71} BF_UART_STAT;
72
73typedef union _UART_STAT {
74 u32 ui;
75 BF_UART_STAT bf;
76} UART_STAT;
77
78/* UART BAUD_DIV register */
79typedef struct __BF_UART_BAUD_DIV {
80 u32 cnt1: 4;
81 u32 cnt0:12;
82 u32 unused:16;
83} BF_UART_BAUD_DIV;
84
85typedef union _UART_BAUD_DIV {
86 u32 ui;
87 BF_UART_BAUD_DIV bf;
88} UART_BAUD_DIV;
89
90/* UART register block */
91typedef struct __UART {
92 volatile UART_LINE_CTRL m_lineCtrl;
93 volatile UART_CTRL m_ctrl;
94 volatile UART_STAT m_stat;
95 volatile u32 m_tx;
96 volatile u32 m_rx;
97 volatile UART_BAUD_DIV m_baudDiv;
98 volatile u32 m_baudCnt;
99 volatile u32 m_baudClk;
100} UART;
101
102#define NL 0x0A
103#define CR 0x0D
104#define BSP 0x08
105#define ESC 0x1B
106#define CTRLZ 0x1A
107#define RUBOUT 0x7F
108
109#endif