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/* $Id: diva_didd.c,v 1.13.6.4 2005/02/11 19:40:25 armin Exp $

 *

 * DIDD Interface module for Eicon active cards.

 *

 * Functions are in dadapter.c

 *

 * Copyright 2002-2003 by Armin Schindler (mac@melware.de)

 * Copyright 2002-2003 Cytronics & Melware (info@melware.de)

 *

 * This software may be used and distributed according to the terms

 * of the GNU General Public License, incorporated herein by reference.

 */

#include <linux/module.h>

#include <linux/init.h>

#include <linux/kernel.h>

#include <linux/proc_fs.h>

#include <net/net_namespace.h>

#include "platform.h"

#include "di_defs.h"

#include "dadapter.h"

#include "divasync.h"

#include "did_vers.h"

static char *main_revision = "$Revision: 1.13.6.4 $";

static char *DRIVERNAME =

    "Eicon DIVA - DIDD table (http://www.melware.net)";

static char *DRIVERLNAME = "divadidd";

char *DRIVERRELEASE_DIDD = "2.0";

MODULE_DESCRIPTION("DIDD table driver for diva drivers");

MODULE_AUTHOR("Cytronics & Melware, Eicon Networks");

MODULE_SUPPORTED_DEVICE("Eicon diva drivers");

MODULE_LICENSE("GPL");

#define DBG_MINIMUM  (DL_LOG + DL_FTL + DL_ERR)

#define DBG_DEFAULT  (DBG_MINIMUM + DL_XLOG + DL_REG)

extern int diddfunc_init(void);

extern void diddfunc_finit(void);

extern void DIVA_DIDD_Read(void *, int);

static struct proc_dir_entry *proc_didd;

struct proc_dir_entry *proc_net_eicon = NULL;

EXPORT_SYMBOL(DIVA_DIDD_Read);

EXPORT_SYMBOL(proc_net_eicon);

static char *getrev(const char *revision)

{

        char *rev;

        char *p;

        if ((p = strchr(revision, ':'))) {

                rev = p + 2;

                p = strchr(rev, '$');

                *--p = 0;

        } else

                rev = "1.0";

        return rev;

}

static int

proc_read(char *page, char **start, off_t off, int count, int *eof,

          void *data)

{

        int len = 0;

        char tmprev[32];

        strcpy(tmprev, main_revision);

        len += sprintf(page + len, "%s\n", DRIVERNAME);

        len += sprintf(page + len, "name     : %s\n", DRIVERLNAME);

        len += sprintf(page + len, "release  : %s\n", DRIVERRELEASE_DIDD);

        len += sprintf(page + len, "build    : %s(%s)\n",

                       diva_didd_common_code_build, DIVA_BUILD);

        len += sprintf(page + len, "revision : %s\n", getrev(tmprev));

        if (off + count >= len)

                *eof = 1;

        if (len < off)

                return 0;

        *start = page + off;

        return ((count < len - off) ? count : len - off);

}

static int DIVA_INIT_FUNCTION create_proc(void)

{

        proc_net_eicon = proc_mkdir("eicon", init_net.proc_net);

        if (proc_net_eicon) {

                if ((proc_didd =

                     create_proc_entry(DRIVERLNAME, S_IFREG | S_IRUGO,

                                       proc_net_eicon))) {

                        proc_didd->read_proc = proc_read;

                }

                return (1);

        }

        return (0);

}

static void remove_proc(void)

{

        remove_proc_entry(DRIVERLNAME, proc_net_eicon);

        remove_proc_entry("eicon", init_net.proc_net);

}

static int DIVA_INIT_FUNCTION divadidd_init(void)

{

        char tmprev[32];

        int ret = 0;

        printk(KERN_INFO "%s\n", DRIVERNAME);

        printk(KERN_INFO "%s: Rel:%s  Rev:", DRIVERLNAME, DRIVERRELEASE_DIDD);

        strcpy(tmprev, main_revision);

        printk("%s  Build:%s(%s)\n", getrev(tmprev),

               diva_didd_common_code_build, DIVA_BUILD);

        if (!create_proc()) {

                printk(KERN_ERR "%s: could not create proc entry\n",

                       DRIVERLNAME);

                ret = -EIO;

                goto out;

        }

        if (!diddfunc_init()) {

                printk(KERN_ERR "%s: failed to connect to DIDD.\n",

                       DRIVERLNAME);

#ifdef MODULE

                remove_proc();

#endif

                ret = -EIO;

                goto out;

        }

      out:

        return (ret);

}

static void DIVA_EXIT_FUNCTION divadidd_exit(void)

{

        diddfunc_finit();

        remove_proc();

        printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME);

}

module_init(divadidd_init);

module_exit(divadidd_exit);