sound/oss/adlib_card.c

   1 /*
   2  * sound/oss/adlib_card.c
   3  *
   4  * Detection routine for the AdLib card.
   5  *
   6  * Copyright (C) by Hannu Savolainen 1993-1997
   7  *
   8  * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
   9  * Version 2 (June 1991). See the "COPYING" file distributed with this software
  10  * for more info.
  11  */
  12
  13 #include <linux/module.h>
  14 #include <linux/init.h>
  15
  16 #include "sound_config.h"
  17
  18 #include "opl3.h"
  19
  20 static void __init attach_adlib_card(struct address_info *hw_config)
  21 {
  22         hw_config->slots[0] = opl3_init(hw_config->io_base, hw_config->osp, THIS_MODULE);
  23 }
  24
  25 static int __init probe_adlib(struct address_info *hw_config)
  26 {
  27         return opl3_detect(hw_config->io_base, hw_config->osp);
  28 }
  29
  30 static struct address_info cfg;
  31
  32 static int __initdata io = -1;
  33
  34 module_param(io, int, 0);
  35
  36 static int __init init_adlib(void)
  37 {
  38         cfg.io_base = io;
  39
  40         if (cfg.io_base == -1) {
  41                 printk(KERN_ERR "adlib: must specify I/O address.\n");
  42                 return -EINVAL;
  43         }
  44         if (probe_adlib(&cfg) == 0)
  45                 return -ENODEV;
  46         attach_adlib_card(&cfg);
  47
  48         return 0;
  49 }
  50
  51 static void __exit cleanup_adlib(void)
  52 {
  53         sound_unload_synthdev(cfg.slots[0]);
  54
  55 }
  56
  57 module_init(init_adlib);
  58 module_exit(cleanup_adlib);
  59
  60 #ifndef MODULE
  61 static int __init setup_adlib(char *str)
  62 {
  63         /* io */
  64         int ints[2];
  65         str = get_options(str, ARRAY_SIZE(ints), ints);
  66
  67         io = ints[1];
  68
  69         return 1;
  70 }
  71 __setup("adlib=", setup_adlib);
  72 #endif
  73 MODULE_LICENSE("GPL");