xref: /openbmc/linux/drivers/pcmcia/rsrc_mgr.c (revision 70342287)
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");
73