125 lines
3.6 KiB
C
125 lines
3.6 KiB
C
/*-
|
|
* 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);
|