1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/*
*
* Copyright 1999 Digi International (www.digi.com)
* James Puzzo <jamesp at digi dot com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
*/
#ifndef __DGRP_COMMON_H
#define __DGRP_COMMON_H
#define DIGI_VERSION "1.9-29"
#include <linux/fs.h>
#include <linux/timer.h>
#include "drp.h"
#define DGRP_TTIME 100
#define DGRP_RTIME 100
/************************************************************************
* All global storage allocation.
************************************************************************/
extern int dgrp_register_cudevices; /* enable legacy cu devices */
extern int dgrp_register_prdevices; /* enable transparent print devices */
extern int dgrp_poll_tick; /* Poll interval - in ms */
extern struct list_head nd_struct_list;
struct dgrp_poll_data {
spinlock_t poll_lock;
struct timer_list timer;
int poll_tick;
ulong poll_round; /* Timer rouding factor */
long node_active_count;
};
extern struct dgrp_poll_data dgrp_poll_data;
extern void dgrp_poll_handler(unsigned long arg);
/* from dgrp_mon_ops.c */
extern const struct file_operations dgrp_mon_ops;
/* from dgrp_tty.c */
extern int dgrp_tty_init(struct nd_struct *nd);
extern void dgrp_tty_uninit(struct nd_struct *nd);
/* from dgrp_ports_ops.c */
extern const struct file_operations dgrp_ports_ops;
/* from dgrp_net_ops.c */
extern const struct file_operations dgrp_net_ops;
/* from dgrp_dpa_ops.c */
extern const struct file_operations dgrp_dpa_ops;
extern void dgrp_dpa_data(struct nd_struct *, int, u8 *, int);
/* from dgrp_sysfs.c */
extern int dgrp_create_class_sysfs_files(void);
extern void dgrp_remove_class_sysfs_files(void);
extern void dgrp_create_node_class_sysfs_files(struct nd_struct *nd);
extern void dgrp_remove_node_class_sysfs_files(struct nd_struct *nd);
extern void dgrp_create_tty_sysfs(struct un_struct *un, struct device *c);
extern void dgrp_remove_tty_sysfs(struct device *c);
/* from dgrp_specproc.c */
extern void dgrp_unregister_proc(void);
extern void dgrp_register_proc(void);
/*-----------------------------------------------------------------------*
*
* Declarations for common operations:
*
* (either used by more than one of net, mon, or tty,
* or in interrupt context (i.e. the poller))
*
*-----------------------------------------------------------------------*/
void dgrp_carrier(struct ch_struct *ch);
/*
* ID manipulation macros (where c1 & c2 are characters, i is
* a long integer, and s is a character array of at least three members
*/
static inline void ID_TO_CHAR(long i, char *s)
{
s[0] = ((i & 0xff00)>>8);
s[1] = (i & 0xff);
s[2] = 0;
}
static inline long CHAR_TO_ID(char *s)
{
return ((s[0] & 0xff) << 8) | (s[1] & 0xff);
}
static inline struct nd_struct *nd_struct_get(long major)
{
struct nd_struct *nd;
list_for_each_entry(nd, &nd_struct_list, list) {
if (major == nd->nd_major)
return nd;
}
return NULL;
}
static inline int nd_struct_add(struct nd_struct *entry)
{
struct nd_struct *ptr;
ptr = nd_struct_get(entry->nd_major);
if (ptr)
return -EBUSY;
list_add_tail(&entry->list, &nd_struct_list);
return 0;
}
static inline int nd_struct_del(struct nd_struct *entry)
{
struct nd_struct *nd;
nd = nd_struct_get(entry->nd_major);
if (!nd)
return -ENODEV;
list_del(&nd->list);
return 0;
}
#endif /* __DGRP_COMMON_H */
|
