LXR linux/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/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
  29static char *main_revision = "$Revision: 1.24 $";
  30static char *DRIVERNAME =
  31        "Eicon DIVA - CAPI Interface driver (http://www.melware.net)";
  32static char *DRIVERLNAME = "divacapi";
  33
  34MODULE_DESCRIPTION("CAPI driver for Eicon DIVA cards");
  35MODULE_AUTHOR("Cytronics & Melware, Eicon Networks");
  36MODULE_SUPPORTED_DEVICE("CAPI and DIVA card drivers");
  37MODULE_LICENSE("GPL");
  38
  39/*
  40 * get revision number from revision string
  41 */
  42static char *getrev(const char *revision)
  43{
  44        char *rev;
  45        char *p;
  46        if ((p = strchr(revision, ':'))) {
  47                rev = p + 2;
  48                p = strchr(rev, '$');
  49                *--p = 0;
  50        } else
  51                rev = "1.0";
  52        return rev;
  53
  54}
  55
  56/*
  57 * alloc a message buffer
  58 */
  59diva_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 */
  72void 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 */
  80static 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
  93static int diva_ctl_proc_open(struct inode *inode, struct file *file)
  94{
  95        return single_open(file, diva_ctl_proc_show, NULL);
  96}
  97
  98static 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 */
 109void 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 */
 121static 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 */
 147static void __exit divacapi_exit(void)
 148{
 149        finit_capifunc();
 150        printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME);
 151}
 152
 153module_init(divacapi_init);
 154module_exit(divacapi_exit);
 155