Contents of /alx-src/tags/kernel26-2.6.12-alx-r9/drivers/char/specialix_io8.h
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Wed Mar 4 11:03:09 2009 UTC (15 years, 6 months ago) by niro
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Wed Mar 4 11:03:09 2009 UTC (15 years, 6 months ago) by niro
File MIME type: text/plain
File size: 4306 byte(s)
Tag kernel26-2.6.12-alx-r9
1 | /* |
2 | * linux/drivers/char/specialix_io8.h -- |
3 | * Specialix IO8+ multiport serial driver. |
4 | * |
5 | * Copyright (C) 1997 Roger Wolff (R.E.Wolff@BitWizard.nl) |
6 | * Copyright (C) 1994-1996 Dmitry Gorodchanin (pgmdsg@ibi.com) |
7 | * |
8 | * |
9 | * Specialix pays for the development and support of this driver. |
10 | * Please DO contact io8-linux@specialix.co.uk if you require |
11 | * support. |
12 | * |
13 | * This driver was developped in the BitWizard linux device |
14 | * driver service. If you require a linux device driver for your |
15 | * product, please contact devices@BitWizard.nl for a quote. |
16 | * |
17 | * This code is firmly based on the riscom/8 serial driver, |
18 | * written by Dmitry Gorodchanin. The specialix IO8+ card |
19 | * programming information was obtained from the CL-CD1865 Data |
20 | * Book, and Specialix document number 6200059: IO8+ Hardware |
21 | * Functional Specification. |
22 | * |
23 | * This program is free software; you can redistribute it and/or |
24 | * modify it under the terms of the GNU General Public License as |
25 | * published by the Free Software Foundation; either version 2 of |
26 | * the License, or (at your option) any later version. |
27 | * |
28 | * This program is distributed in the hope that it will be |
29 | * useful, but WITHOUT ANY WARRANTY; without even the implied |
30 | * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
31 | * PURPOSE. See the GNU General Public License for more details. |
32 | * |
33 | * You should have received a copy of the GNU General Public |
34 | * License along with this program; if not, write to the Free |
35 | * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, |
36 | * USA. |
37 | * */ |
38 | |
39 | #ifndef __LINUX_SPECIALIX_H |
40 | #define __LINUX_SPECIALIX_H |
41 | |
42 | #include <linux/serial.h> |
43 | |
44 | #ifdef __KERNEL__ |
45 | |
46 | /* You can have max 4 ISA cards in one PC, and I recommend not much |
47 | more than a few PCI versions of the card. */ |
48 | |
49 | #define SX_NBOARD 8 |
50 | |
51 | /* NOTE: Specialix decoder recognizes 4 addresses, but only two are used.... */ |
52 | #define SX_IO_SPACE 4 |
53 | /* The PCI version decodes 8 addresses, but still only 2 are used. */ |
54 | #define SX_PCI_IO_SPACE 8 |
55 | |
56 | /* eight ports per board. */ |
57 | #define SX_NPORT 8 |
58 | #define SX_BOARD(line) ((line) / SX_NPORT) |
59 | #define SX_PORT(line) ((line) & (SX_NPORT - 1)) |
60 | |
61 | |
62 | #define SX_DATA_REG 0 /* Base+0 : Data register */ |
63 | #define SX_ADDR_REG 1 /* base+1 : Address register. */ |
64 | |
65 | #define MHz *1000000 /* I'm ashamed of myself. */ |
66 | |
67 | /* On-board oscillator frequency */ |
68 | #define SX_OSCFREQ (25 MHz/2) |
69 | /* There is a 25MHz crystal on the board, but the chip is in /2 mode */ |
70 | |
71 | |
72 | /* Ticks per sec. Used for setting receiver timeout and break length */ |
73 | #define SPECIALIX_TPS 4000 |
74 | |
75 | /* Yeah, after heavy testing I decided it must be 6. |
76 | * Sure, You can change it if needed. |
77 | */ |
78 | #define SPECIALIX_RXFIFO 6 /* Max. receiver FIFO size (1-8) */ |
79 | |
80 | #define SPECIALIX_MAGIC 0x0907 |
81 | |
82 | #define SX_CCR_TIMEOUT 10000 /* CCR timeout. You may need to wait upto |
83 | 10 milliseconds before the internal |
84 | processor is available again after |
85 | you give it a command */ |
86 | |
87 | #define SX_IOBASE1 0x100 |
88 | #define SX_IOBASE2 0x180 |
89 | #define SX_IOBASE3 0x250 |
90 | #define SX_IOBASE4 0x260 |
91 | |
92 | struct specialix_board { |
93 | unsigned long flags; |
94 | unsigned short base; |
95 | unsigned char irq; |
96 | //signed char count; |
97 | int count; |
98 | unsigned char DTR; |
99 | int reg; |
100 | spinlock_t lock; |
101 | }; |
102 | |
103 | #define SX_BOARD_PRESENT 0x00000001 |
104 | #define SX_BOARD_ACTIVE 0x00000002 |
105 | #define SX_BOARD_IS_PCI 0x00000004 |
106 | |
107 | |
108 | struct specialix_port { |
109 | int magic; |
110 | int baud_base; |
111 | int flags; |
112 | struct tty_struct * tty; |
113 | int count; |
114 | int blocked_open; |
115 | ulong event; |
116 | int timeout; |
117 | int close_delay; |
118 | unsigned char * xmit_buf; |
119 | int custom_divisor; |
120 | int xmit_head; |
121 | int xmit_tail; |
122 | int xmit_cnt; |
123 | wait_queue_head_t open_wait; |
124 | wait_queue_head_t close_wait; |
125 | struct work_struct tqueue; |
126 | struct work_struct tqueue_hangup; |
127 | short wakeup_chars; |
128 | short break_length; |
129 | unsigned short closing_wait; |
130 | unsigned char mark_mask; |
131 | unsigned char IER; |
132 | unsigned char MSVR; |
133 | unsigned char COR2; |
134 | unsigned long overrun; |
135 | unsigned long hits[10]; |
136 | spinlock_t lock; |
137 | }; |
138 | |
139 | #endif /* __KERNEL__ */ |
140 | #endif /* __LINUX_SPECIALIX_H */ |
141 | |
142 | |
143 | |
144 | |
145 | |
146 | |
147 | |
148 | |
149 |