drivers/isdn/eicon/Divas_mod.c

   1 /*
   2  * This software may be used and distributed according to the terms
   3  * of the GNU General Public License, incorporated herein by reference.
   4  *
   5  */
   6
   7 #include <linux/config.h>
   8 #include <linux/init.h>
   9 #include <linux/fs.h>
  10 #undef N_DATA
  11
  12 #include <linux/kernel.h>
  13
  14 #include <linux/module.h>
  15 #include <linux/pci.h>
  16 #include <linux/ioport.h>
  17 #include <linux/slab.h>
  18 #include <linux/errno.h>
  19
  20 #include "adapter.h"
  21 #include "uxio.h"
  22
  23
  24 MODULE_DESCRIPTION("ISDN4Linux: Driver for Eicon Diva Server cards");
  25 MODULE_AUTHOR("Armin Schindler");
  26 MODULE_LICENSE("GPL");
  27
  28 #ifdef MODULE
  29 #include "idi.h"
  30 void DIVA_DIDD_Write(DESCRIPTOR *, int);
  31 EXPORT_SYMBOL_NOVERS(DIVA_DIDD_Read);
  32 EXPORT_SYMBOL_NOVERS(DIVA_DIDD_Write);
  33 EXPORT_SYMBOL_NOVERS(DivasPrintf);
  34 #endif
  35
  36 int DivasCardsDiscover(void);
  37
  38 static int __init
  39 divas_init(void)
  40 {
  41         printk(KERN_DEBUG "DIVA Server Driver - initialising\n");
  42
  43         printk(KERN_DEBUG "DIVA Server Driver - Version 2.0.16\n");
  44
  45 #if !defined(CONFIG_PCI)
  46         printk(KERN_WARNING "CONFIG_PCI is not defined!\n");
  47         return -ENODEV;
  48 #endif
  49
  50         if (pci_present())
  51         {
  52                 if (DivasCardsDiscover() < 0)
  53                 {
  54                         printk(KERN_WARNING "Divas: Not loaded\n");
  55                         return -ENODEV;
  56                 }
  57         }
  58         else
  59         {
  60                 printk(KERN_WARNING "Divas: No PCI bus present\n");
  61                 return -ENODEV;
  62         }
  63
  64     return 0;
  65 }
  66
  67 static void __exit
  68 divas_exit(void)
  69 {
  70         card_t *pCard;
  71         word wCardIndex;
  72         extern int Divas_major;
  73
  74         printk(KERN_DEBUG "DIVA Server Driver - unloading\n");
  75
  76         pCard = DivasCards;
  77         for (wCardIndex = 0; wCardIndex < MAX_CARDS; wCardIndex++)
  78         {
  79                 if ((pCard->hw) && (pCard->hw->in_use))
  80                 {
  81
  82                         (*pCard->card_reset)(pCard);
  83
  84                         UxIsrRemove(pCard->hw, pCard);
  85                         UxCardHandleFree(pCard->hw);
  86
  87                         if(pCard->e_tbl != NULL)
  88                         {
  89                                 kfree(pCard->e_tbl);
  90                         }
  91
  92
  93                         if(pCard->hw->card_type == DIA_CARD_TYPE_DIVA_SERVER_B)
  94                         {
  95                                 release_region(pCard->hw->io_base,0x20);
  96                                 release_region(pCard->hw->reset_base,0x80);
  97                         }
  98
  99                         // If this is a 4BRI ...
 100                         if (pCard->hw->card_type == DIA_CARD_TYPE_DIVA_SERVER_Q)
 101                         {
 102                                 // Skip over the next 3 virtual adapters
 103                                 wCardIndex += 3;
 104
 105                                 // But free their handles
 106                                 pCard++;
 107                                 UxCardHandleFree(pCard->hw);
 108
 109                                 if(pCard->e_tbl != NULL)
 110                                 {
 111                                         kfree(pCard->e_tbl);
 112                                 }
 113
 114                                 pCard++;
 115                                 UxCardHandleFree(pCard->hw);
 116
 117                                 if(pCard->e_tbl != NULL)
 118                                 {
 119                                         kfree(pCard->e_tbl);
 120                                 }
 121
 122                                 pCard++;
 123                                 UxCardHandleFree(pCard->hw);
 124
 125                                 if(pCard->e_tbl != NULL)
 126                                 {
 127                                         kfree(pCard->e_tbl);
 128                                 }
 129                         }
 130                 }
 131                 pCard++;
 132         }
 133
 134         unregister_chrdev(Divas_major, "Divas");
 135 }
 136
 137 module_init(divas_init);
 138 module_exit(divas_exit);
 139