drivers/pcmcia/rsrc_mgr.c

   1 /*
   2  * rsrc_mgr.c -- Resource management routines and/or wrappers
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  * The initial developer of the original code is David A. Hinds
   9  * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
  10  * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
  11  *
  12  * (C) 1999             David A. Hinds
  13  */
  14
  15 #include <linux/slab.h>
  16 #include <linux/module.h>
  17 #include <linux/kernel.h>
  18
  19 #include <pcmcia/ss.h>
  20 #include <pcmcia/cistpl.h>
  21 #include "cs_internal.h"
  22
  23 int static_init(struct pcmcia_socket *s)
  24 {
  25         /* the good thing about SS_CAP_STATIC_MAP sockets is
  26          * that they don't need a resource database */
  27
  28         s->resource_setup_done = 1;
  29
  30         return 0;
  31 }
  32
  33 struct resource *pcmcia_make_resource(unsigned long start, unsigned long end,
  34                                 int flags, const char *name)
  35 {
  36         struct resource *res = kzalloc(sizeof(*res), GFP_KERNEL);
  37
  38         if (res) {
  39                 res->name = name;
  40                 res->start = start;
  41                 res->end = start + end - 1;
  42                 res->flags = flags;
  43         }
  44         return res;
  45 }
  46
  47 static int static_find_io(struct pcmcia_socket *s, unsigned int attr,
  48                         unsigned int *base, unsigned int num,
  49                         unsigned int align, struct resource **parent)
  50 {
  51         if (!s->io_offset)
  52                 return -EINVAL;
  53         *base = s->io_offset | (*base & 0x0fff);
  54         *parent = NULL;
  55
  56         return 0;
  57 }
  58
  59
  60 struct pccard_resource_ops pccard_static_ops = {
  61         .validate_mem = NULL,
  62         .find_io = static_find_io,
  63         .find_mem = NULL,
  64         .init = static_init,
  65         .exit = NULL,
  66 };
  67 EXPORT_SYMBOL(pccard_static_ops);
  68
  69
  70 MODULE_AUTHOR("David A. Hinds, Dominik Brodowski");
  71 MODULE_LICENSE("GPL");
  72 MODULE_ALIAS("rsrc_nonstatic");