text: /* $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 <linux/seq_file.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 divadidd_proc_show(struct seq_file *m, void *v)
  {
  	char tmprev[32];
  
  	strcpy(tmprev, main_revision);
  	seq_printf(m, "%s\n", DRIVERNAME);
  	seq_printf(m, "name     : %s\n", DRIVERLNAME);
  	seq_printf(m, "release  : %s\n", DRIVERRELEASE_DIDD);
  	seq_printf(m, "build    : %s(%s)\n",
  		   diva_didd_common_code_build, DIVA_BUILD);
  	seq_printf(m, "revision : %s\n", getrev(tmprev));
  
  	return 0;
  }
  
  static int divadidd_proc_open(struct inode *inode, struct file *file)
  {
  	return single_open(file, divadidd_proc_show, NULL);
  }
  
  static const struct file_operations divadidd_proc_fops = {
  	.owner		= THIS_MODULE,
  	.open		= divadidd_proc_open,
  	.read		= seq_read,
  	.llseek		= seq_lseek,
  	.release	= single_release,
  };
  
  static int DIVA_INIT_FUNCTION create_proc(void)
  {
  	proc_net_eicon = proc_mkdir("eicon", init_net.proc_net);
  
  	if (proc_net_eicon) {
  		proc_didd = proc_create(DRIVERLNAME, S_IRUGO, proc_net_eicon,
  					&divadidd_proc_fops);
  		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);
  