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1da177e4 LT |
1 | /* $Id: diva_didd.c,v 1.13.6.4 2005/02/11 19:40:25 armin Exp $ |
2 | * | |
3 | * DIDD Interface module for Eicon active cards. | |
4 | * | |
5 | * Functions are in dadapter.c | |
6 | * | |
7 | * Copyright 2002-2003 by Armin Schindler (mac@melware.de) | |
8 | * Copyright 2002-2003 Cytronics & Melware (info@melware.de) | |
9 | * | |
10 | * This software may be used and distributed according to the terms | |
11 | * of the GNU General Public License, incorporated herein by reference. | |
12 | */ | |
13 | ||
14 | #include <linux/config.h> | |
15 | #include <linux/module.h> | |
16 | #include <linux/init.h> | |
17 | #include <linux/kernel.h> | |
18 | #include <linux/proc_fs.h> | |
19 | ||
20 | #include "platform.h" | |
21 | #include "di_defs.h" | |
22 | #include "dadapter.h" | |
23 | #include "divasync.h" | |
24 | #include "did_vers.h" | |
25 | ||
26 | static char *main_revision = "$Revision: 1.13.6.4 $"; | |
27 | ||
28 | static char *DRIVERNAME = | |
29 | "Eicon DIVA - DIDD table (http://www.melware.net)"; | |
30 | static char *DRIVERLNAME = "divadidd"; | |
31 | char *DRIVERRELEASE_DIDD = "2.0"; | |
32 | ||
33 | static char *main_proc_dir = "eicon"; | |
34 | ||
35 | MODULE_DESCRIPTION("DIDD table driver for diva drivers"); | |
36 | MODULE_AUTHOR("Cytronics & Melware, Eicon Networks"); | |
37 | MODULE_SUPPORTED_DEVICE("Eicon diva drivers"); | |
38 | MODULE_LICENSE("GPL"); | |
39 | ||
40 | #define DBG_MINIMUM (DL_LOG + DL_FTL + DL_ERR) | |
41 | #define DBG_DEFAULT (DBG_MINIMUM + DL_XLOG + DL_REG) | |
42 | ||
43 | extern int diddfunc_init(void); | |
44 | extern void diddfunc_finit(void); | |
45 | ||
46 | extern void DIVA_DIDD_Read(void *, int); | |
47 | ||
48 | static struct proc_dir_entry *proc_didd; | |
49 | struct proc_dir_entry *proc_net_eicon = NULL; | |
50 | ||
51 | EXPORT_SYMBOL(DIVA_DIDD_Read); | |
52 | EXPORT_SYMBOL(proc_net_eicon); | |
53 | ||
54 | static char *getrev(const char *revision) | |
55 | { | |
56 | char *rev; | |
57 | char *p; | |
58 | if ((p = strchr(revision, ':'))) { | |
59 | rev = p + 2; | |
60 | p = strchr(rev, '$'); | |
61 | *--p = 0; | |
62 | } else | |
63 | rev = "1.0"; | |
64 | return rev; | |
65 | } | |
66 | ||
67 | static int | |
68 | proc_read(char *page, char **start, off_t off, int count, int *eof, | |
69 | void *data) | |
70 | { | |
71 | int len = 0; | |
72 | char tmprev[32]; | |
73 | ||
74 | strcpy(tmprev, main_revision); | |
75 | len += sprintf(page + len, "%s\n", DRIVERNAME); | |
76 | len += sprintf(page + len, "name : %s\n", DRIVERLNAME); | |
77 | len += sprintf(page + len, "release : %s\n", DRIVERRELEASE_DIDD); | |
78 | len += sprintf(page + len, "build : %s(%s)\n", | |
79 | diva_didd_common_code_build, DIVA_BUILD); | |
80 | len += sprintf(page + len, "revision : %s\n", getrev(tmprev)); | |
81 | ||
82 | if (off + count >= len) | |
83 | *eof = 1; | |
84 | if (len < off) | |
85 | return 0; | |
86 | *start = page + off; | |
87 | return ((count < len - off) ? count : len - off); | |
88 | } | |
89 | ||
90 | static int DIVA_INIT_FUNCTION create_proc(void) | |
91 | { | |
92 | proc_net_eicon = create_proc_entry(main_proc_dir, S_IFDIR, proc_net); | |
93 | ||
94 | if (proc_net_eicon) { | |
95 | if ((proc_didd = | |
96 | create_proc_entry(DRIVERLNAME, S_IFREG | S_IRUGO, | |
97 | proc_net_eicon))) { | |
98 | proc_didd->read_proc = proc_read; | |
99 | } | |
100 | return (1); | |
101 | } | |
102 | return (0); | |
103 | } | |
104 | ||
105 | static void DIVA_EXIT_FUNCTION remove_proc(void) | |
106 | { | |
107 | remove_proc_entry(DRIVERLNAME, proc_net_eicon); | |
108 | remove_proc_entry(main_proc_dir, proc_net); | |
109 | } | |
110 | ||
111 | static int DIVA_INIT_FUNCTION divadidd_init(void) | |
112 | { | |
113 | char tmprev[32]; | |
114 | int ret = 0; | |
115 | ||
116 | printk(KERN_INFO "%s\n", DRIVERNAME); | |
117 | printk(KERN_INFO "%s: Rel:%s Rev:", DRIVERLNAME, DRIVERRELEASE_DIDD); | |
118 | strcpy(tmprev, main_revision); | |
119 | printk("%s Build:%s(%s)\n", getrev(tmprev), | |
120 | diva_didd_common_code_build, DIVA_BUILD); | |
121 | ||
122 | if (!create_proc()) { | |
123 | printk(KERN_ERR "%s: could not create proc entry\n", | |
124 | DRIVERLNAME); | |
125 | ret = -EIO; | |
126 | goto out; | |
127 | } | |
128 | ||
129 | if (!diddfunc_init()) { | |
130 | printk(KERN_ERR "%s: failed to connect to DIDD.\n", | |
131 | DRIVERLNAME); | |
132 | #ifdef MODULE | |
133 | remove_proc(); | |
134 | #endif | |
135 | ret = -EIO; | |
136 | goto out; | |
137 | } | |
138 | ||
139 | out: | |
140 | return (ret); | |
141 | } | |
142 | ||
143 | static void DIVA_EXIT_FUNCTION divadidd_exit(void) | |
144 | { | |
145 | diddfunc_finit(); | |
146 | remove_proc(); | |
147 | printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME); | |
148 | } | |
149 | ||
150 | module_init(divadidd_init); | |
151 | module_exit(divadidd_exit); |