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