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
27static char *main_revision = "$Revision: 1.13.6.4 $";
28
29static char *DRIVERNAME =
30	"Eicon DIVA - DIDD table (http://www.melware.net)";
31static char *DRIVERLNAME = "divadidd";
32char *DRIVERRELEASE_DIDD = "2.0";
33
34MODULE_DESCRIPTION("DIDD table driver for diva drivers");
35MODULE_AUTHOR("Cytronics & Melware, Eicon Networks");
36MODULE_SUPPORTED_DEVICE("Eicon diva drivers");
37MODULE_LICENSE("GPL");
38
39#define DBG_MINIMUM  (DL_LOG + DL_FTL + DL_ERR)
40#define DBG_DEFAULT  (DBG_MINIMUM + DL_XLOG + DL_REG)
41
42extern int diddfunc_init(void);
43extern void diddfunc_finit(void);
44
45extern void DIVA_DIDD_Read(void *, int);
46
47static struct proc_dir_entry *proc_didd;
48struct proc_dir_entry *proc_net_eicon = NULL;
49
50EXPORT_SYMBOL(DIVA_DIDD_Read);
51EXPORT_SYMBOL(proc_net_eicon);
52
53static char *getrev(const char *revision)
54{
55	char *rev;
56	char *p;
57	if ((p = strchr(revision, ':'))) {
58		rev = p + 2;
59		p = strchr(rev, '$');
60		*--p = 0;
61	} else
62		rev = "1.0";
63	return rev;
64}
65
66static 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
81static int divadidd_proc_open(struct inode *inode, struct file *file)
82{
83	return single_open(file, divadidd_proc_show, NULL);
84}
85
86static 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
94static int __init 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
106static void remove_proc(void)
107{
108	remove_proc_entry(DRIVERLNAME, proc_net_eicon);
109	remove_proc_entry("eicon", init_net.proc_net);
110}
111
112static int __init 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
140out:
141	return (ret);
142}
143
144static void __exit divadidd_exit(void)
145{
146	diddfunc_finit();
147	remove_proc();
148	printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME);
149}
150
151module_init(divadidd_init);
152module_exit(divadidd_exit);
153