2 * rsrc_mgr.c -- Resource management routines and/or wrappers
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.
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.
12 * (C) 1999 David A. Hinds
15 #include <linux/module.h>
16 #include <linux/kernel.h>
18 #include <pcmcia/cs_types.h>
19 #include <pcmcia/ss.h>
20 #include <pcmcia/cs.h>
21 #include <pcmcia/cistpl.h>
22 #include "cs_internal.h"
24 static int static_init(struct pcmcia_socket *s)
26 /* the good thing about SS_CAP_STATIC_MAP sockets is
27 * that they don't need a resource database */
29 mutex_lock(&s->ops_mutex);
30 s->resource_setup_done = 1;
31 mutex_unlock(&s->ops_mutex);
37 struct pccard_resource_ops pccard_static_ops = {
39 .adjust_io_region = NULL,
47 EXPORT_SYMBOL(pccard_static_ops);
50 #ifdef CONFIG_PCCARD_IODYN
52 static struct resource *
53 make_resource(unsigned long b, unsigned long n, int flags, char *name)
55 struct resource *res = kzalloc(sizeof(*res), GFP_KERNEL);
66 struct pcmcia_align_data {
71 static void pcmcia_align(void *align_data, struct resource *res,
72 unsigned long size, unsigned long align)
74 struct pcmcia_align_data *data = align_data;
77 start = (res->start & ~data->mask) + data->offset;
78 if (start < res->start)
79 start += data->mask + 1;
83 if (res->flags & IORESOURCE_IO) {
85 start = (start + 0x3ff) & ~0x3ff;
92 if (res->flags & IORESOURCE_IO) {
93 if ((res->start + size - 1) >= 1024)
94 res->start = res->end;
100 static int iodyn_adjust_io_region(struct resource *res, unsigned long r_start,
101 unsigned long r_end, struct pcmcia_socket *s)
103 return adjust_resource(res, r_start, r_end - r_start + 1);
107 static struct resource *iodyn_find_io_region(unsigned long base, int num,
108 unsigned long align, struct pcmcia_socket *s)
110 struct resource *res = make_resource(0, num, IORESOURCE_IO,
112 struct pcmcia_align_data data;
113 unsigned long min = base;
119 data.mask = align - 1;
120 data.offset = base & data.mask;
124 ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, 1,
125 min, 0, pcmcia_align, &data);
128 ret = allocate_resource(&ioport_resource, res, num, min, ~0UL,
129 1, pcmcia_align, &data);
138 struct pccard_resource_ops pccard_iodyn_ops = {
139 .validate_mem = NULL,
140 .adjust_io_region = iodyn_adjust_io_region,
141 .find_io = iodyn_find_io_region,
148 EXPORT_SYMBOL(pccard_iodyn_ops);
150 #endif /* CONFIG_PCCARD_IODYN */