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Diffstat (limited to 'drivers/char/specialix_io8.h')
-rw-r--r-- | drivers/char/specialix_io8.h | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/drivers/char/specialix_io8.h b/drivers/char/specialix_io8.h new file mode 100644 index 000000000000..895bd90de363 --- /dev/null +++ b/drivers/char/specialix_io8.h | |||
@@ -0,0 +1,149 @@ | |||
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 | |||