LXR linux/drivers/pcmcia/rsrc

   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
  23int 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
  33struct resource *pcmcia_make_resource(resource_size_t start,
  34                                        resource_size_t end,
  35                                        unsigned long flags, const char *name)
  36{
  37        struct resource *res = kzalloc(sizeof(*res), GFP_KERNEL);
  38
  39        if (res) {
  40                res->name = name;
  41                res->start = start;
  42                res->end = start + end - 1;
  43                res->flags = flags;
  44        }
  45        return res;
  46}
  47
  48static int static_find_io(struct pcmcia_socket *s, unsigned int attr,
  49                        unsigned int *base, unsigned int num,
  50                        unsigned int align, struct resource **parent)
  51{
  52        if (!s->io_offset)
  53                return -EINVAL;
  54        *base = s->io_offset | (*base & 0x0fff);
  55        *parent = NULL;
  56
  57        return 0;
  58}
  59
  60
  61struct pccard_resource_ops pccard_static_ops = {
  62        .validate_mem = NULL,
  63        .find_io = static_find_io,
  64        .find_mem = NULL,
  65        .init = static_init,
  66        .exit = NULL,
  67};
  68EXPORT_SYMBOL(pccard_static_ops);
  69
  70
  71MODULE_AUTHOR("David A. Hinds, Dominik Brodowski");
  72MODULE_LICENSE("GPL");
  73MODULE_ALIAS("rsrc_nonstatic");
  74