drivers/isdn/hardware/eicon/capimain.c

   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 (mac@melware.de)
   7  * Copyright 2000-2003 Cytronics & Melware (info@melware.de)
   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/config.h>
  14 #include <linux/module.h>
  15 #include <linux/init.h>
  16 #include <asm/uaccess.h>
  17 #include <linux/smp_lock.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_read_proc(char *page, char **start, off_t off,
  81                               int count, int *eof, struct capi_ctr *ctrl)
  82 {
  83         diva_card *card = (diva_card *) ctrl->driverdata;
  84         int len = 0;
  85
  86         len += sprintf(page + len, "%s\n", ctrl->name);
  87         len += sprintf(page + len, "Serial No. : %s\n", ctrl->serial);
  88         len += sprintf(page + len, "Id         : %d\n", card->Id);
  89         len += sprintf(page + len, "Channels   : %d\n", card->d.channels);
  90
  91         if (off + count >= len)
  92                 *eof = 1;
  93         if (len < off)
  94                 return 0;
  95         *start = page + off;
  96         return ((count < len - off) ? count : len - off);
  97 }
  98
  99 /*
 100  * set additional os settings in capi_ctr struct
 101  */
 102 void diva_os_set_controller_struct(struct capi_ctr *ctrl)
 103 {
 104         ctrl->driver_name = DRIVERLNAME;
 105         ctrl->load_firmware = NULL;
 106         ctrl->reset_ctr = NULL;
 107         ctrl->ctr_read_proc = diva_ctl_read_proc;
 108         ctrl->owner = THIS_MODULE;
 109 }
 110
 111 /*
 112  * module init
 113  */
 114 static int DIVA_INIT_FUNCTION divacapi_init(void)
 115 {
 116         char tmprev[32];
 117         int ret = 0;
 118
 119         sprintf(DRIVERRELEASE_CAPI, "%d.%d%s", DRRELMAJOR, DRRELMINOR,
 120                 DRRELEXTRA);
 121
 122         printk(KERN_INFO "%s\n", DRIVERNAME);
 123         printk(KERN_INFO "%s: Rel:%s  Rev:", DRIVERLNAME, DRIVERRELEASE_CAPI);
 124         strcpy(tmprev, main_revision);
 125         printk("%s  Build: %s(%s)\n", getrev(tmprev),
 126                diva_capi_common_code_build, DIVA_BUILD);
 127
 128         if (!(init_capifunc())) {
 129                 printk(KERN_ERR "%s: failed init capi_driver.\n",
 130                        DRIVERLNAME);
 131                 ret = -EIO;
 132         }
 133
 134         return ret;
 135 }
 136
 137 /*
 138  * module exit
 139  */
 140 static void DIVA_EXIT_FUNCTION divacapi_exit(void)
 141 {
 142         finit_capifunc();
 143         printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME);
 144 }
 145
 146 module_init(divacapi_init);
 147 module_exit(divacapi_exit);