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/cs_types.h>
  20 #include <pcmcia/ss.h>
  21 #include <pcmcia/cs.h>
  22 #include <pcmcia/cistpl.h>
  23 #include "cs_internal.h"
  24
  25 int static_init(struct pcmcia_socket *s)
  26 {
  27         /* the good thing about SS_CAP_STATIC_MAP sockets is
  28          * that they don't need a resource database */
  29
  30         s->resource_setup_done = 1;
  31
  32         return 0;
  33 }
  34
  35 struct resource *pcmcia_make_resource(unsigned long start, unsigned long end,
  36                                 int flags, const char *name)
  37 {
  38         struct resource *res = kzalloc(sizeof(*res), GFP_KERNEL);
  39
  40         if (res) {
  41                 res->name = name;
  42                 res->start = start;
  43                 res->end = start + end - 1;
  44                 res->flags = flags;
  45         }
  46         return res;
  47 }
  48
  49 static int static_find_io(struct pcmcia_socket *s, unsigned int attr,
  50                         unsigned int *base, unsigned int num,
  51                         unsigned int align)
  52 {
  53         if (!s->io_offset)
  54                 return -EINVAL;
  55         *base = s->io_offset | (*base & 0x0fff);
  56
  57         return 0;
  58 }
  59
  60
  61 struct pccard_resource_ops pccard_static_ops = {
  62         .validate_mem = NULL,
  63         .find_io = static_find_io,
  64         .find_mem = NULL,
  65         .add_io = NULL,
  66         .add_mem = NULL,
  67         .init = static_init,
  68         .exit = NULL,
  69 };
  70 EXPORT_SYMBOL(pccard_static_ops);
  71
  72
  73 MODULE_AUTHOR("David A. Hinds, Dominik Brodowski");
  74 MODULE_LICENSE("GPL");
  75 MODULE_ALIAS("rsrc_nonstatic");