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0b52b749 BP |
1 | /* |
2 | * | |
3 | * Copyright 1999-2003 Digi International (www.digi.com) | |
4 | * Jeff Randall | |
5 | * James Puzzo <jamesp at digi dot com> | |
6 | * Scott Kilau <Scott_Kilau at digi dot com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2, or (at your option) | |
11 | * any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the | |
15 | * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR | |
16 | * PURPOSE. See the GNU General Public License for more details. | |
17 | * | |
18 | */ | |
19 | ||
20 | /* | |
21 | * Driver specific includes | |
22 | */ | |
23 | #include <linux/module.h> | |
24 | #include <linux/slab.h> | |
25 | #include <linux/tty.h> | |
26 | #include <linux/init.h> | |
27 | ||
28 | /* | |
29 | * PortServer includes | |
30 | */ | |
31 | #include "dgrp_common.h" | |
32 | ||
33 | ||
34 | MODULE_LICENSE("GPL"); | |
35 | MODULE_AUTHOR("Digi International, http://www.digi.com"); | |
36 | MODULE_DESCRIPTION("RealPort driver for Digi's ethernet-based serial connectivity product line"); | |
37 | MODULE_VERSION(DIGI_VERSION); | |
38 | ||
39 | struct list_head nd_struct_list; | |
40 | struct dgrp_poll_data dgrp_poll_data; | |
41 | ||
42 | int dgrp_rawreadok = 1; /* Bypass flipbuf on input */ | |
43 | int dgrp_register_cudevices = 1;/* Turn on/off registering legacy cu devices */ | |
44 | int dgrp_register_prdevices = 1;/* Turn on/off registering transparent print */ | |
45 | int dgrp_poll_tick = 20; /* Poll interval - in ms */ | |
46 | ||
47 | module_param_named(rawreadok, dgrp_rawreadok, int, 0644); | |
48 | MODULE_PARM_DESC(rawreadok, "Bypass flip buffers on input"); | |
49 | ||
50 | module_param_named(register_cudevices, dgrp_register_cudevices, int, 0644); | |
51 | MODULE_PARM_DESC(register_cudevices, "Turn on/off registering legacy cu devices"); | |
52 | ||
53 | module_param_named(register_prdevices, dgrp_register_prdevices, int, 0644); | |
54 | MODULE_PARM_DESC(register_prdevices, "Turn on/off registering transparent print devices"); | |
55 | ||
56 | module_param_named(pollrate, dgrp_poll_tick, int, 0644); | |
57 | MODULE_PARM_DESC(pollrate, "Poll interval in ms"); | |
58 | ||
59 | /* Driver load/unload functions */ | |
60 | static int dgrp_init_module(void); | |
61 | static void dgrp_cleanup_module(void); | |
62 | ||
63 | module_init(dgrp_init_module); | |
64 | module_exit(dgrp_cleanup_module); | |
65 | ||
66 | /* | |
67 | * init_module() | |
68 | * | |
69 | * Module load. This is where it all starts. | |
70 | */ | |
71 | static int dgrp_init_module(void) | |
72 | { | |
73 | INIT_LIST_HEAD(&nd_struct_list); | |
74 | ||
75 | spin_lock_init(&dgrp_poll_data.poll_lock); | |
76 | init_timer(&dgrp_poll_data.timer); | |
77 | dgrp_poll_data.poll_tick = dgrp_poll_tick; | |
78 | dgrp_poll_data.timer.function = dgrp_poll_handler; | |
79 | dgrp_poll_data.timer.data = (unsigned long) &dgrp_poll_data; | |
80 | ||
81 | dgrp_create_class_sysfs_files(); | |
82 | ||
83 | dgrp_register_proc(); | |
84 | ||
85 | return 0; | |
86 | } | |
87 | ||
88 | ||
89 | /* | |
90 | * Module unload. This is where it all ends. | |
91 | */ | |
92 | static void dgrp_cleanup_module(void) | |
93 | { | |
94 | struct nd_struct *nd, *next; | |
95 | ||
96 | /* | |
97 | * Attempting to free resources in backwards | |
98 | * order of allocation, in case that helps | |
99 | * memory pool fragmentation. | |
100 | */ | |
101 | dgrp_unregister_proc(); | |
102 | ||
103 | dgrp_remove_class_sysfs_files(); | |
104 | ||
105 | ||
106 | list_for_each_entry_safe(nd, next, &nd_struct_list, list) { | |
107 | dgrp_tty_uninit(nd); | |
108 | kfree(nd); | |
109 | } | |
110 | } |