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/*-
* Copyright (c) 1999 Doug Rabson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <isa/isavar.h>
#include <machine/resource.h>
static void
isahint_add_device(device_t parent, const char *name, int unit)
{
device_t child;
int sensitive, start, count;
int order;
/* device-specific flag overrides any wildcard */
sensitive = 0;
if (resource_int_value(name, unit, "sensitive", &sensitive) != 0)
resource_int_value(name, -1, "sensitive", &sensitive);
if (sensitive)
order = ISA_ORDER_SENSITIVE;
else
order = ISA_ORDER_SPECULATIVE;
child = BUS_ADD_CHILD(parent, order, name, unit);
if (child == 0)
return;
start = 0;
count = 0;
resource_int_value(name, unit, "port", &start);
resource_int_value(name, unit, "portsize", &count);
if (start > 0 || count > 0)
bus_set_resource(child, SYS_RES_IOPORT, 0, start, count);
start = 0;
count = 0;
resource_int_value(name, unit, "maddr", &start);
resource_int_value(name, unit, "msize", &count);
if (start > 0 || count > 0)
bus_set_resource(child, SYS_RES_MEMORY, 0, start, count);
if (resource_int_value(name, unit, "irq", &start) == 0 && start > 0)
bus_set_resource(child, SYS_RES_IRQ, 0, start, 1);
if (resource_int_value(name, unit, "drq", &start) == 0 && start >= 0)
bus_set_resource(child, SYS_RES_DRQ, 0, start, 1);
if (resource_disabled(name, unit))
device_disable(child);
isa_set_configattr(child, (isa_get_configattr(child)|ISACFGATTR_HINTS));
}
static void
isahint_identify(driver_t *driver, device_t parent)
{
int i;
static char buf[] = "isaXXX";
const char *dname;
int dunit;
/*
* Add all devices configured to be attached to parent.
*/
sprintf(buf, "isa%d", device_get_unit(parent));
i = 0;
while (resource_find_match(&i, &dname, &dunit, "at", buf) == 0)
isahint_add_device(parent, dname, dunit);
/*
* and isa?
*/
i = 0;
while (resource_find_match(&i, &dname, &dunit, "at", "isa") == 0)
isahint_add_device(parent, dname, dunit);
}
static device_method_t isahint_methods[] = {
/* Device interface */
DEVMETHOD(device_identify, isahint_identify),
{ 0, 0 }
};
static driver_t isahint_driver = {
"hint",
isahint_methods,
1, /* no softc */
};
static devclass_t hint_devclass;
DRIVER_MODULE(isahint, isa, isahint_driver, hint_devclass, 0, 0);
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