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 s->resource_setup_done = 1;
35 struct pccard_resource_ops pccard_static_ops = {
37 .adjust_io_region = NULL,
45 EXPORT_SYMBOL(pccard_static_ops);
48 #ifdef CONFIG_PCCARD_IODYN
50 static struct resource *
51 make_resource(unsigned long b, unsigned long n, int flags, char *name)
53 struct resource *res = kzalloc(sizeof(*res), GFP_KERNEL);
64 struct pcmcia_align_data {
69 static resource_size_t pcmcia_align(void *align_data,
70 const struct resource *res,
71 resource_size_t size, resource_size_t align)
73 struct pcmcia_align_data *data = align_data;
74 resource_size_t start;
76 start = (res->start & ~data->mask) + data->offset;
77 if (start < res->start)
78 start += data->mask + 1;
81 if (res->flags & IORESOURCE_IO) {
83 start = (start + 0x3ff) & ~0x3ff;
88 if (res->flags & IORESOURCE_IO) {
89 if ((res->start + size - 1) >= 1024)
98 static int iodyn_adjust_io_region(struct resource *res, unsigned long r_start,
99 unsigned long r_end, struct pcmcia_socket *s)
101 return adjust_resource(res, r_start, r_end - r_start + 1);
105 static struct resource *iodyn_find_io_region(unsigned long base, int num,
106 unsigned long align, struct pcmcia_socket *s)
108 struct resource *res = make_resource(0, num, IORESOURCE_IO,
110 struct pcmcia_align_data data;
111 unsigned long min = base;
117 data.mask = align - 1;
118 data.offset = base & data.mask;
122 ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, 1,
123 min, 0, pcmcia_align, &data);
126 ret = allocate_resource(&ioport_resource, res, num, min, ~0UL,
127 1, pcmcia_align, &data);
136 struct pccard_resource_ops pccard_iodyn_ops = {
137 .validate_mem = NULL,
138 .adjust_io_region = iodyn_adjust_io_region,
139 .find_io = iodyn_find_io_region,
146 EXPORT_SYMBOL(pccard_iodyn_ops);
148 #endif /* CONFIG_PCCARD_IODYN */