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capimain.c
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1 /* $Id: capimain.c,v 1.24 2003/09/09 06:51:05 schindler Exp $
2  *
3  * ISDN interface module for Eicon active cards DIVA.
4  * CAPI Interface
5  *
6  * Copyright 2000-2003 by Armin Schindler ([email protected])
7  * Copyright 2000-2003 Cytronics & Melware ([email protected])
8  *
9  * This software may be used and distributed according to the terms
10  * of the GNU General Public License, incorporated herein by reference.
11  */
12 
13 #include <linux/module.h>
14 #include <linux/slab.h>
15 #include <linux/init.h>
16 #include <asm/uaccess.h>
17 #include <linux/seq_file.h>
18 #include <linux/skbuff.h>
19 
20 #include "os_capi.h"
21 
22 #include "platform.h"
23 #include "di_defs.h"
24 #include "capi20.h"
25 #include "divacapi.h"
26 #include "cp_vers.h"
27 #include "capifunc.h"
28 
29 static char *main_revision = "$Revision: 1.24 $";
30 static char *DRIVERNAME =
31  "Eicon DIVA - CAPI Interface driver (http://www.melware.net)";
32 static char *DRIVERLNAME = "divacapi";
33 
34 MODULE_DESCRIPTION("CAPI driver for Eicon DIVA cards");
35 MODULE_AUTHOR("Cytronics & Melware, Eicon Networks");
36 MODULE_SUPPORTED_DEVICE("CAPI and DIVA card drivers");
37 MODULE_LICENSE("GPL");
38 
39 /*
40  * get revision number from revision string
41  */
42 static char *getrev(const char *revision)
43 {
44  char *rev;
45  char *p;
46  if ((p = strchr(revision, ':'))) {
47  rev = p + 2;
48  p = strchr(rev, '$');
49  *--p = 0;
50  } else
51  rev = "1.0";
52  return rev;
53 
54 }
55 
56 /*
57  * alloc a message buffer
58  */
59 diva_os_message_buffer_s *diva_os_alloc_message_buffer(unsigned long size,
60  void **data_buf)
61 {
62  diva_os_message_buffer_s *dmb = alloc_skb(size, GFP_ATOMIC);
63  if (dmb) {
64  *data_buf = skb_put(dmb, size);
65  }
66  return (dmb);
67 }
68 
69 /*
70  * free a message buffer
71  */
72 void diva_os_free_message_buffer(diva_os_message_buffer_s *dmb)
73 {
74  kfree_skb(dmb);
75 }
76 
77 /*
78  * proc function for controller info
79  */
80 static int diva_ctl_proc_show(struct seq_file *m, void *v)
81 {
82  struct capi_ctr *ctrl = m->private;
83  diva_card *card = (diva_card *) ctrl->driverdata;
84 
85  seq_printf(m, "%s\n", ctrl->name);
86  seq_printf(m, "Serial No. : %s\n", ctrl->serial);
87  seq_printf(m, "Id : %d\n", card->Id);
88  seq_printf(m, "Channels : %d\n", card->d.channels);
89 
90  return 0;
91 }
92 
93 static int diva_ctl_proc_open(struct inode *inode, struct file *file)
94 {
95  return single_open(file, diva_ctl_proc_show, NULL);
96 }
97 
98 static const struct file_operations diva_ctl_proc_fops = {
99  .owner = THIS_MODULE,
100  .open = diva_ctl_proc_open,
101  .read = seq_read,
102  .llseek = seq_lseek,
103  .release = single_release,
104 };
105 
106 /*
107  * set additional os settings in capi_ctr struct
108  */
109 void diva_os_set_controller_struct(struct capi_ctr *ctrl)
110 {
111  ctrl->driver_name = DRIVERLNAME;
112  ctrl->load_firmware = NULL;
113  ctrl->reset_ctr = NULL;
114  ctrl->proc_fops = &diva_ctl_proc_fops;
115  ctrl->owner = THIS_MODULE;
116 }
117 
118 /*
119  * module init
120  */
121 static int __init divacapi_init(void)
122 {
123  char tmprev[32];
124  int ret = 0;
125 
126  sprintf(DRIVERRELEASE_CAPI, "%d.%d%s", DRRELMAJOR, DRRELMINOR,
127  DRRELEXTRA);
128 
129  printk(KERN_INFO "%s\n", DRIVERNAME);
130  printk(KERN_INFO "%s: Rel:%s Rev:", DRIVERLNAME, DRIVERRELEASE_CAPI);
131  strcpy(tmprev, main_revision);
132  printk("%s Build: %s(%s)\n", getrev(tmprev),
133  diva_capi_common_code_build, DIVA_BUILD);
134 
135  if (!(init_capifunc())) {
136  printk(KERN_ERR "%s: failed init capi_driver.\n",
137  DRIVERLNAME);
138  ret = -EIO;
139  }
140 
141  return ret;
142 }
143 
144 /*
145  * module exit
146  */
147 static void __exit divacapi_exit(void)
148 {
149  finit_capifunc();
150  printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME);
151 }
152 
153 module_init(divacapi_init);
154 module_exit(divacapi_exit);
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