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1 | /* |
2 | * linux/drivers/char/riscom8.h -- RISCom/8 multiport serial driver. |
3 | * |
4 | * Copyright (C) 1994-1996 Dmitry Gorodchanin (pgmdsg@ibi.com) |
5 | * |
6 | * This code is loosely based on the Linux serial driver, written by |
7 | * Linus Torvalds, Theodore T'so and others. The RISCom/8 card |
8 | * programming info was obtained from various drivers for other OSes |
9 | * (FreeBSD, ISC, etc), but no source code from those drivers were |
10 | * directly included in this driver. |
11 | * |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify |
14 | * it under the terms of the GNU General Public License as published by |
15 | * the Free Software Foundation; either version 2 of the License, or |
16 | * (at your option) any later version. |
17 | * |
18 | * This program is distributed in the hope that it will be useful, |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
21 | * GNU General Public License for more details. |
22 | * |
23 | * You should have received a copy of the GNU General Public License |
24 | * along with this program; if not, write to the Free Software |
25 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
26 | */ |
27 | |
28 | #ifndef __LINUX_RISCOM8_H |
29 | #define __LINUX_RISCOM8_H |
30 | |
31 | #include <linux/serial.h> |
32 | |
33 | #ifdef __KERNEL__ |
34 | |
35 | #define RC_NBOARD 4 |
36 | /* NOTE: RISCom decoder recognizes 16 addresses... */ |
37 | #define RC_NPORT 8 |
38 | #define RC_BOARD(line) (((line) >> 3) & 0x07) |
39 | #define RC_PORT(line) ((line) & (RC_NPORT - 1)) |
40 | |
41 | /* Ticks per sec. Used for setting receiver timeout and break length */ |
42 | #define RISCOM_TPS 4000 |
43 | |
44 | /* Yeah, after heavy testing I decided it must be 6. |
45 | * Sure, You can change it if needed. |
46 | */ |
47 | #define RISCOM_RXFIFO 6 /* Max. receiver FIFO size (1-8) */ |
48 | |
49 | #define RISCOM8_MAGIC 0x0907 |
50 | |
51 | #define RC_IOBASE1 0x220 |
52 | #define RC_IOBASE2 0x240 |
53 | #define RC_IOBASE3 0x250 |
54 | #define RC_IOBASE4 0x260 |
55 | |
56 | struct riscom_board { |
57 | unsigned long flags; |
58 | unsigned short base; |
59 | unsigned char irq; |
60 | signed char count; |
61 | unsigned char DTR; |
62 | }; |
63 | |
64 | #define RC_BOARD_PRESENT 0x00000001 |
65 | #define RC_BOARD_ACTIVE 0x00000002 |
66 | |
67 | struct riscom_port { |
68 | int magic; |
69 | struct tty_port port; |
70 | int baud_base; |
71 | int timeout; |
72 | int custom_divisor; |
73 | int xmit_head; |
74 | int xmit_tail; |
75 | int xmit_cnt; |
76 | short wakeup_chars; |
77 | short break_length; |
78 | unsigned char mark_mask; |
79 | unsigned char IER; |
80 | unsigned char MSVR; |
81 | unsigned char COR2; |
82 | #ifdef RC_REPORT_OVERRUN |
83 | unsigned long overrun; |
84 | #endif |
85 | #ifdef RC_REPORT_FIFO |
86 | unsigned long hits[10]; |
87 | #endif |
88 | }; |
89 | |
90 | #endif /* __KERNEL__ */ |
91 | #endif /* __LINUX_RISCOM8_H */ |
92 |
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od-2011-09-18
v2.6.34-rc5
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v3.9