linux/drivers/pcmcia/rsrc_mgr.c
Dominik Brodowski ad0c7be28b pcmcia: insert PCMCIA device resources into resource tree
Insert PCMCIA device resources into the resource tree. However, this is
currently only implemented for sockets which do not statically map the
resources.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-08-03 09:04:19 +02:00

74 lines
1.7 KiB
C

/*
* rsrc_mgr.c -- Resource management routines and/or wrappers
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* The initial developer of the original code is David A. Hinds
* <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
*
* (C) 1999 David A. Hinds
*/
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <pcmcia/ss.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
#include "cs_internal.h"
int static_init(struct pcmcia_socket *s)
{
/* the good thing about SS_CAP_STATIC_MAP sockets is
* that they don't need a resource database */
s->resource_setup_done = 1;
return 0;
}
struct resource *pcmcia_make_resource(unsigned long start, unsigned long end,
int flags, const char *name)
{
struct resource *res = kzalloc(sizeof(*res), GFP_KERNEL);
if (res) {
res->name = name;
res->start = start;
res->end = start + end - 1;
res->flags = flags;
}
return res;
}
static int static_find_io(struct pcmcia_socket *s, unsigned int attr,
unsigned int *base, unsigned int num,
unsigned int align, struct resource **parent)
{
if (!s->io_offset)
return -EINVAL;
*base = s->io_offset | (*base & 0x0fff);
*parent = NULL;
return 0;
}
struct pccard_resource_ops pccard_static_ops = {
.validate_mem = NULL,
.find_io = static_find_io,
.find_mem = NULL,
.init = static_init,
.exit = NULL,
};
EXPORT_SYMBOL(pccard_static_ops);
MODULE_AUTHOR("David A. Hinds, Dominik Brodowski");
MODULE_LICENSE("GPL");
MODULE_ALIAS("rsrc_nonstatic");