LXR linux/drivers/isdn/pcbit/module.c

   1/*
   2 * PCBIT-D module support
   3 *
   4 * Copyright (C) 1996 Universidade de Lisboa
   5 * 
   6 * Written by Pedro Roque Marques (roque@di.fc.ul.pt)
   7 *
   8 * This software may be used and distributed according to the terms of 
   9 * the GNU General Public License, incorporated herein by reference.
  10 */
  11
  12#include <linux/module.h>
  13#include <linux/init.h>
  14#include <linux/string.h>
  15#include <linux/kernel.h>
  16#include <linux/skbuff.h>
  17
  18#include <linux/isdnif.h>
  19#include "pcbit.h"
  20
  21MODULE_DESCRIPTION("ISDN4Linux: Driver for PCBIT-T card");
  22MODULE_AUTHOR("Pedro Roque Marques");
  23MODULE_LICENSE("GPL");
  24
  25static int mem[MAX_PCBIT_CARDS];
  26static int irq[MAX_PCBIT_CARDS];
  27
  28module_param_array(mem, int, NULL, 0);
  29module_param_array(irq, int, NULL, 0);
  30
  31static int num_boards;
  32struct pcbit_dev * dev_pcbit[MAX_PCBIT_CARDS];
  33
  34static int __init pcbit_init(void)
  35{
  36        int board;
  37
  38        num_boards = 0;
  39
  40        printk(KERN_NOTICE 
  41               "PCBIT-D device driver v 0.5-fjpc0 19991204 - "
  42               "Copyright (C) 1996 Universidade de Lisboa\n");
  43
  44        if (mem[0] || irq[0]) 
  45        {
  46                for (board=0; board < MAX_PCBIT_CARDS && mem[board] && irq[board]; board++)
  47                {
  48                        if (!mem[board])
  49                                mem[board] = 0xD0000;
  50                        if (!irq[board])
  51                                irq[board] = 5;
  52                        
  53                        if (pcbit_init_dev(board, mem[board], irq[board]) == 0)
  54                                num_boards++;
  55                
  56                        else 
  57                        {
  58                                printk(KERN_WARNING 
  59                                       "pcbit_init failed for dev %d", 
  60                                       board + 1);
  61                                return -EIO;
  62                        }
  63                }
  64        }
  65
  66        /* Hardcoded default settings detection */
  67
  68        if (!num_boards)
  69        {
  70                printk(KERN_INFO 
  71                       "Trying to detect board using default settings\n");
  72                if (pcbit_init_dev(0, 0xD0000, 5) == 0)
  73                        num_boards++;
  74                else
  75                        return -EIO;
  76        }
  77        return 0;
  78}
  79
  80static void __exit pcbit_exit(void)
  81{
  82#ifdef MODULE
  83        int board;
  84
  85        for (board = 0; board < num_boards; board++)
  86                pcbit_terminate(board);
  87        printk(KERN_NOTICE 
  88               "PCBIT-D module unloaded\n");
  89#endif
  90}
  91
  92#ifndef MODULE
  93#define MAX_PARA        (MAX_PCBIT_CARDS * 2)
  94static int __init pcbit_setup(char *line)
  95{
  96        int i, j, argc;
  97        char *str;
  98        int ints[MAX_PARA+1];
  99
 100        str = get_options(line, MAX_PARA, ints);
 101        argc = ints[0];
 102        i = 0;
 103        j = 1;
 104
 105        while (argc && (i<MAX_PCBIT_CARDS)) {
 106
 107                if (argc) {
 108                        mem[i]  = ints[j];
 109                        j++; argc--;
 110                }
 111                
 112                if (argc) {
 113                        irq[i]  = ints[j];
 114                        j++; argc--;
 115                }
 116
 117                i++;
 118        }
 119        return(1);
 120}
 121__setup("pcbit=", pcbit_setup);
 122#endif
 123
 124module_init(pcbit_init);
 125module_exit(pcbit_exit);
 126
 127