8d37a371b6
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: (49 commits)
pcmcia: validate late-added resources
pcmcia: allow for extension of resource interval
pcmcia: remove useless msleep in ds.c
pcmcia: use read_cis_mem return value
pcmcia: handle error in serial_cs config calls
pcmcia: add locking to pcmcia_{read,write}_cis_mem
pcmcia: avoid prod_id memleak
pcmcia: avoid sysfs-related lockup for cardbus
pcmcia: use state machine for extended requery
pcmcia: delay re-scanning and re-querying of PCMCIA bus
pcmcia: use pccardd to handle eject, insert, suspend and resume requests
pcmcia: use ops_mutex for rsrc_{mgr,nonstatic} locking
pcmcia: use mutex for dynid lock
pcmcia: assert locking to struct pcmcia_device
pcmcia: add locking documentation
pcmcia: simplify locking
pcmcia: add locking to struct pcmcia_socket->pcmcia_state()
pcmcia: protect s->device_count
pcmcia: properly lock skt->irq, skt->irq_mask
pcmcia: lock ops->set_socket
...
149 lines
3.2 KiB
C
149 lines
3.2 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/module.h>
|
|
#include <linux/kernel.h>
|
|
|
|
#include <pcmcia/cs_types.h>
|
|
#include <pcmcia/ss.h>
|
|
#include <pcmcia/cs.h>
|
|
#include <pcmcia/cistpl.h>
|
|
#include "cs_internal.h"
|
|
|
|
static 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 pccard_resource_ops pccard_static_ops = {
|
|
.validate_mem = NULL,
|
|
.adjust_io_region = NULL,
|
|
.find_io = NULL,
|
|
.find_mem = NULL,
|
|
.add_io = NULL,
|
|
.add_mem = NULL,
|
|
.init = static_init,
|
|
.exit = NULL,
|
|
};
|
|
EXPORT_SYMBOL(pccard_static_ops);
|
|
|
|
|
|
#ifdef CONFIG_PCCARD_IODYN
|
|
|
|
static struct resource *
|
|
make_resource(unsigned long b, unsigned long n, int flags, char *name)
|
|
{
|
|
struct resource *res = kzalloc(sizeof(*res), GFP_KERNEL);
|
|
|
|
if (res) {
|
|
res->name = name;
|
|
res->start = b;
|
|
res->end = b + n - 1;
|
|
res->flags = flags;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
struct pcmcia_align_data {
|
|
unsigned long mask;
|
|
unsigned long offset;
|
|
};
|
|
|
|
static resource_size_t pcmcia_align(void *align_data,
|
|
const struct resource *res,
|
|
resource_size_t size, resource_size_t align)
|
|
{
|
|
struct pcmcia_align_data *data = align_data;
|
|
resource_size_t start;
|
|
|
|
start = (res->start & ~data->mask) + data->offset;
|
|
if (start < res->start)
|
|
start += data->mask + 1;
|
|
|
|
#ifdef CONFIG_X86
|
|
if (res->flags & IORESOURCE_IO) {
|
|
if (start & 0x300) {
|
|
start = (start + 0x3ff) & ~0x3ff;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_M68K
|
|
if (res->flags & IORESOURCE_IO) {
|
|
if ((res->start + size - 1) >= 1024)
|
|
start = res->end;
|
|
}
|
|
#endif
|
|
|
|
return start;
|
|
}
|
|
|
|
|
|
static int iodyn_adjust_io_region(struct resource *res, unsigned long r_start,
|
|
unsigned long r_end, struct pcmcia_socket *s)
|
|
{
|
|
return adjust_resource(res, r_start, r_end - r_start + 1);
|
|
}
|
|
|
|
|
|
static struct resource *iodyn_find_io_region(unsigned long base, int num,
|
|
unsigned long align, struct pcmcia_socket *s)
|
|
{
|
|
struct resource *res = make_resource(0, num, IORESOURCE_IO,
|
|
dev_name(&s->dev));
|
|
struct pcmcia_align_data data;
|
|
unsigned long min = base;
|
|
int ret;
|
|
|
|
if (align == 0)
|
|
align = 0x10000;
|
|
|
|
data.mask = align - 1;
|
|
data.offset = base & data.mask;
|
|
|
|
#ifdef CONFIG_PCI
|
|
if (s->cb_dev) {
|
|
ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, 1,
|
|
min, 0, pcmcia_align, &data);
|
|
} else
|
|
#endif
|
|
ret = allocate_resource(&ioport_resource, res, num, min, ~0UL,
|
|
1, pcmcia_align, &data);
|
|
|
|
if (ret != 0) {
|
|
kfree(res);
|
|
res = NULL;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
struct pccard_resource_ops pccard_iodyn_ops = {
|
|
.validate_mem = NULL,
|
|
.adjust_io_region = iodyn_adjust_io_region,
|
|
.find_io = iodyn_find_io_region,
|
|
.find_mem = NULL,
|
|
.add_io = NULL,
|
|
.add_mem = NULL,
|
|
.init = static_init,
|
|
.exit = NULL,
|
|
};
|
|
EXPORT_SYMBOL(pccard_iodyn_ops);
|
|
|
|
#endif /* CONFIG_PCCARD_IODYN */
|