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 <linux/seq_file.h>
19 #include <net/net_namespace.h>
20
21 #include "platform.h"
22 #include "di_defs.h"
23 #include "dadapter.h"
24 #include "divasync.h"
25 #include "did_vers.h"
26
27 static char *main_revision = "$Revision: 1.13.6.4 $";
28
29 static char *DRIVERNAME =
30 "Eicon DIVA - DIDD table (http://www.melware.net)";
31 static char *DRIVERLNAME = "divadidd";
32 char *DRIVERRELEASE_DIDD = "2.0";
33
34 MODULE_DESCRIPTION("DIDD table driver for diva drivers");
35 MODULE_AUTHOR("Cytronics & Melware, Eicon Networks");
36 MODULE_SUPPORTED_DEVICE("Eicon diva drivers");
37 MODULE_LICENSE("GPL");
38
39 #define DBG_MINIMUM (DL_LOG + DL_FTL + DL_ERR)
40 #define DBG_DEFAULT (DBG_MINIMUM + DL_XLOG + DL_REG)
41
42 extern int diddfunc_init(void);
43 extern void diddfunc_finit(void);
44
45 extern void DIVA_DIDD_Read(void *, int);
46
47 static struct proc_dir_entry *proc_didd;
48 struct proc_dir_entry *proc_net_eicon = NULL;
49
50 EXPORT_SYMBOL(DIVA_DIDD_Read);
51 EXPORT_SYMBOL(proc_net_eicon);
52
getrev(const char * revision)53 static char *getrev(const char *revision)
54 {
55 char *rev;
56 char *p;
57 if ((p = strchr(revision, ':'))) {
58 rev = p + 2;
59 p = strchr(rev, '$');
60 *--p = 0;
61 } else
62 rev = "1.0";
63 return rev;
64 }
65
divadidd_proc_show(struct seq_file * m,void * v)66 static int divadidd_proc_show(struct seq_file *m, void *v)
67 {
68 char tmprev[32];
69
70 strcpy(tmprev, main_revision);
71 seq_printf(m, "%s\n", DRIVERNAME);
72 seq_printf(m, "name : %s\n", DRIVERLNAME);
73 seq_printf(m, "release : %s\n", DRIVERRELEASE_DIDD);
74 seq_printf(m, "build : %s(%s)\n",
75 diva_didd_common_code_build, DIVA_BUILD);
76 seq_printf(m, "revision : %s\n", getrev(tmprev));
77
78 return 0;
79 }
80
divadidd_proc_open(struct inode * inode,struct file * file)81 static int divadidd_proc_open(struct inode *inode, struct file *file)
82 {
83 return single_open(file, divadidd_proc_show, NULL);
84 }
85
86 static const struct file_operations divadidd_proc_fops = {
87 .owner = THIS_MODULE,
88 .open = divadidd_proc_open,
89 .read = seq_read,
90 .llseek = seq_lseek,
91 .release = single_release,
92 };
93
create_proc(void)94 static int DIVA_INIT_FUNCTION create_proc(void)
95 {
96 proc_net_eicon = proc_mkdir("eicon", init_net.proc_net);
97
98 if (proc_net_eicon) {
99 proc_didd = proc_create(DRIVERLNAME, S_IRUGO, proc_net_eicon,
100 &divadidd_proc_fops);
101 return (1);
102 }
103 return (0);
104 }
105
remove_proc(void)106 static void remove_proc(void)
107 {
108 remove_proc_entry(DRIVERLNAME, proc_net_eicon);
109 remove_proc_entry("eicon", init_net.proc_net);
110 }
111
divadidd_init(void)112 static int DIVA_INIT_FUNCTION divadidd_init(void)
113 {
114 char tmprev[32];
115 int ret = 0;
116
117 printk(KERN_INFO "%s\n", DRIVERNAME);
118 printk(KERN_INFO "%s: Rel:%s Rev:", DRIVERLNAME, DRIVERRELEASE_DIDD);
119 strcpy(tmprev, main_revision);
120 printk("%s Build:%s(%s)\n", getrev(tmprev),
121 diva_didd_common_code_build, DIVA_BUILD);
122
123 if (!create_proc()) {
124 printk(KERN_ERR "%s: could not create proc entry\n",
125 DRIVERLNAME);
126 ret = -EIO;
127 goto out;
128 }
129
130 if (!diddfunc_init()) {
131 printk(KERN_ERR "%s: failed to connect to DIDD.\n",
132 DRIVERLNAME);
133 #ifdef MODULE
134 remove_proc();
135 #endif
136 ret = -EIO;
137 goto out;
138 }
139
140 out:
141 return (ret);
142 }
143
divadidd_exit(void)144 static void DIVA_EXIT_FUNCTION divadidd_exit(void)
145 {
146 diddfunc_finit();
147 remove_proc();
148 printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME);
149 }
150
151 module_init(divadidd_init);
152 module_exit(divadidd_exit);
153