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39539887 WD |
1 | #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 */ | |
30 | typedef 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 | ||
39 | typedef union _UART_LINE_CTRL { | |
40 | u32 ui; | |
41 | BF_UART_LINE_CTRL bf; | |
42 | } UART_LINE_CTRL; | |
43 | ||
44 | /* UART CONTROL register */ | |
45 | typedef 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 | ||
55 | typedef union _UART_CTRL { | |
56 | u32 ui; | |
57 | BF_UART_CTRL bf; | |
58 | } UART_CTRL; | |
59 | ||
60 | /* UART STATUS register */ | |
61 | typedef 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 | ||
73 | typedef union _UART_STAT { | |
74 | u32 ui; | |
75 | BF_UART_STAT bf; | |
76 | } UART_STAT; | |
77 | ||
78 | /* UART BAUD_DIV register */ | |
79 | typedef struct __BF_UART_BAUD_DIV { | |
80 | u32 cnt1: 4; | |
81 | u32 cnt0:12; | |
82 | u32 unused:16; | |
83 | } BF_UART_BAUD_DIV; | |
84 | ||
85 | typedef union _UART_BAUD_DIV { | |
86 | u32 ui; | |
87 | BF_UART_BAUD_DIV bf; | |
88 | } UART_BAUD_DIV; | |
89 | ||
90 | /* UART register block */ | |
91 | typedef 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 |