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/init.h>
  15#include <asm/uaccess.h>
  16#include <linux/skbuff.h>
  17
  18#include "os_capi.h"
  19
  20#include "platform.h"
  21#include "di_defs.h"
  22#include "capi20.h"
  23#include "divacapi.h"
  24#include "cp_vers.h"
  25#include "capifunc.h"
  26
  27static char *main_revision = "$Revision: 1.24 $";
  28static char *DRIVERNAME =
  29    "Eicon DIVA - CAPI Interface driver (http://www.melware.net)";
  30static char *DRIVERLNAME = "divacapi";
  31
  32MODULE_DESCRIPTION("CAPI driver for Eicon DIVA cards");
  33MODULE_AUTHOR("Cytronics & Melware, Eicon Networks");
  34MODULE_SUPPORTED_DEVICE("CAPI and DIVA card drivers");
  35MODULE_LICENSE("GPL");
  36
  37/*
  38 * get revision number from revision string
  39 */
  40static char *getrev(const char *revision)
  41{
  42        char *rev;
  43        char *p;
  44        if ((p = strchr(revision, ':'))) {
  45                rev = p + 2;
  46                p = strchr(rev, '$');
  47                *--p = 0;
  48        } else
  49                rev = "1.0";
  50        return rev;
  51
  52}
  53
  54/*
  55 * alloc a message buffer
  56 */
  57diva_os_message_buffer_s *diva_os_alloc_message_buffer(unsigned long size,
  58                                                       void **data_buf)
  59{
  60        diva_os_message_buffer_s *dmb = alloc_skb(size, GFP_ATOMIC);
  61        if (dmb) {
  62                *data_buf = skb_put(dmb, size);
  63        }
  64        return (dmb);
  65}
  66
  67/*
  68 * free a message buffer
  69 */
  70void diva_os_free_message_buffer(diva_os_message_buffer_s * dmb)
  71{
  72        kfree_skb(dmb);
  73}
  74
  75/*
  76 * proc function for controller info
  77 */
  78static int diva_ctl_read_proc(char *page, char **start, off_t off,
  79                              int count, int *eof, struct capi_ctr *ctrl)
  80{
  81        diva_card *card = (diva_card *) ctrl->driverdata;
  82        int len = 0;
  83
  84        len += sprintf(page + len, "%s\n", ctrl->name);
  85        len += sprintf(page + len, "Serial No. : %s\n", ctrl->serial);
  86        len += sprintf(page + len, "Id         : %d\n", card->Id);
  87        len += sprintf(page + len, "Channels   : %d\n", card->d.channels);
  88
  89        if (off + count >= len)
  90                *eof = 1;
  91        if (len < off)
  92                return 0;
  93        *start = page + off;
  94        return ((count < len - off) ? count : len - off);
  95}
  96
  97/*
  98 * set additional os settings in capi_ctr struct
  99 */
 100void diva_os_set_controller_struct(struct capi_ctr *ctrl)
 101{
 102        ctrl->driver_name = DRIVERLNAME;
 103        ctrl->load_firmware = NULL;
 104        ctrl->reset_ctr = NULL;
 105        ctrl->ctr_read_proc = diva_ctl_read_proc;
 106        ctrl->owner = THIS_MODULE;
 107}
 108
 109/*
 110 * module init
 111 */
 112static int DIVA_INIT_FUNCTION divacapi_init(void)
 113{
 114        char tmprev[32];
 115        int ret = 0;
 116
 117        sprintf(DRIVERRELEASE_CAPI, "%d.%d%s", DRRELMAJOR, DRRELMINOR,
 118                DRRELEXTRA);
 119
 120        printk(KERN_INFO "%s\n", DRIVERNAME);
 121        printk(KERN_INFO "%s: Rel:%s  Rev:", DRIVERLNAME, DRIVERRELEASE_CAPI);
 122        strcpy(tmprev, main_revision);
 123        printk("%s  Build: %s(%s)\n", getrev(tmprev),
 124               diva_capi_common_code_build, DIVA_BUILD);
 125
 126        if (!(init_capifunc())) {
 127                printk(KERN_ERR "%s: failed init capi_driver.\n",
 128                       DRIVERLNAME);
 129                ret = -EIO;
 130        }
 131
 132        return ret;
 133}
 134
 135/*
 136 * module exit
 137 */
 138static void DIVA_EXIT_FUNCTION divacapi_exit(void)
 139{
 140        finit_capifunc();
 141        printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME);
 142}
 143
 144module_init(divacapi_init);
 145module_exit(divacapi_exit);
 146