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/module.h>
15 #include <linux/init.h>
16 #include <linux/kernel.h>
17 #include <linux/proc_fs.h>
18 #include <net/net_namespace.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 $";
27
28 static char *DRIVERNAME =
29 "Eicon DIVA - DIDD table (http://www.melware.net)";
30 static char *DRIVERLNAME = "divadidd";
31 char *DRIVERRELEASE_DIDD = "2.0";
32
33 MODULE_DESCRIPTION("DIDD table driver for diva drivers");
34 MODULE_AUTHOR("Cytronics & Melware, Eicon Networks");
35 MODULE_SUPPORTED_DEVICE("Eicon diva drivers");
36 MODULE_LICENSE("GPL");
37
38 #define DBG_MINIMUM (DL_LOG + DL_FTL + DL_ERR)
39 #define DBG_DEFAULT (DBG_MINIMUM + DL_XLOG + DL_REG)
40
41 extern int diddfunc_init(void);
42 extern void diddfunc_finit(void);
43
44 extern void DIVA_DIDD_Read(void *, int);
45
46 static struct proc_dir_entry *proc_didd;
47 struct proc_dir_entry *proc_net_eicon = NULL;
48
49 EXPORT_SYMBOL(DIVA_DIDD_Read);
50 EXPORT_SYMBOL(proc_net_eicon);
51
52 static char *getrev(const char *revision)
53 {
54 char *rev;
55 char *p;
56 if ((p = strchr(revision, ':'))) {
57 rev = p + 2;
58 p = strchr(rev, '$');
59 *--p = 0;
60 } else
61 rev = "1.0";
62 return rev;
63 }
64
65 static int
66 proc_read(char *page, char **start, off_t off, int count, int *eof,
67 void *data)
68 {
69 int len = 0;
70 char tmprev[32];
71
72 strcpy(tmprev, main_revision);
73 len += sprintf(page + len, "%s\n", DRIVERNAME);
74 len += sprintf(page + len, "name : %s\n", DRIVERLNAME);
75 len += sprintf(page + len, "release : %s\n", DRIVERRELEASE_DIDD);
76 len += sprintf(page + len, "build : %s(%s)\n",
77 diva_didd_common_code_build, DIVA_BUILD);
78 len += sprintf(page + len, "revision : %s\n", getrev(tmprev));
79
80 if (off + count >= len)
81 *eof = 1;
82 if (len < off)
83 return 0;
84 *start = page + off;
85 return ((count < len - off) ? count : len - off);
86 }
87
88 static int DIVA_INIT_FUNCTION create_proc(void)
89 {
90 proc_net_eicon = proc_mkdir("eicon", init_net.proc_net);
91
92 if (proc_net_eicon) {
93 if ((proc_didd =
94 create_proc_entry(DRIVERLNAME, S_IFREG | S_IRUGO,
95 proc_net_eicon))) {
96 proc_didd->read_proc = proc_read;
97 }
98 return (1);
99 }
100 return (0);
101 }
102
103 static void remove_proc(void)
104 {
105 remove_proc_entry(DRIVERLNAME, proc_net_eicon);
106 remove_proc_entry("eicon", init_net.proc_net);
107 }
108
109 static int DIVA_INIT_FUNCTION divadidd_init(void)
110 {
111 char tmprev[32];
112 int ret = 0;
113
114 printk(KERN_INFO "%s\n", DRIVERNAME);
115 printk(KERN_INFO "%s: Rel:%s Rev:", DRIVERLNAME, DRIVERRELEASE_DIDD);
116 strcpy(tmprev, main_revision);
117 printk("%s Build:%s(%s)\n", getrev(tmprev),
118 diva_didd_common_code_build, DIVA_BUILD);
119
120 if (!create_proc()) {
121 printk(KERN_ERR "%s: could not create proc entry\n",
122 DRIVERLNAME);
123 ret = -EIO;
124 goto out;
125 }
126
127 if (!diddfunc_init()) {
128 printk(KERN_ERR "%s: failed to connect to DIDD.\n",
129 DRIVERLNAME);
130 #ifdef MODULE
131 remove_proc();
132 #endif
133 ret = -EIO;
134 goto out;
135 }
136
137 out:
138 return (ret);
139 }
140
141 static void DIVA_EXIT_FUNCTION divadidd_exit(void)
142 {
143 diddfunc_finit();
144 remove_proc();
145 printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME);
146 }
147
148 module_init(divadidd_init);
149 module_exit(divadidd_exit);
150
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