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mirror of https://git.FreeBSD.org/src.git synced 2024-12-03 09:00:21 +00:00
freebsd/sys/isa/isahint.c
Doug Rabson 25afb89b1c * Add struct resource_list* argument to resource_list_alloc and
resource_list_release. This removes the dependancy on the
  layout of ivars.

* Move set_resource, get_resource and delete_resource from
  isa_if.m to bus_if.m.

* Simplify driver code by providing wrappers to those methods:

     bus_set_resource(dev, type, rid, start, count);
     bus_get_resource(dev, type, rid, startp, countp);
     bus_get_resource_start(dev, type, rid);
     bus_get_resource_count(dev, type, rid);
     bus_delete_resource(dev, type, rid);

* Delete isa_get_rsrc and use bus_get_resource_start instead.

* Fix a stupid typo in isa_alloc_resource reported by Takahashi
  Yoshihiro <nyan@FreeBSD.org>.

* Print a diagnostic message if we can't assign resources to a PnP
  device.

* Change device_print_prettyname() so that it doesn't print
  "(no driver assigned)-1" for anonymous devices.
1999-10-12 21:35:51 +00:00

133 lines
4.0 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.
*
* $FreeBSD$
*/
#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, t;
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;
if ((resource_int_value(name, unit, "port", &start) == 0 && start > 0)
|| (resource_int_value(name, unit, "portsize", &count) == 0 && count > 0))
bus_set_resource(child, SYS_RES_IOPORT, 0, start, count);
start = 0;
count = 0;
if ((resource_int_value(name, unit, "maddr", &start) == 0 && start > 0)
|| (resource_int_value(name, unit, "msize", &count) == 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_int_value(name, unit, "flags", &t) == 0)
device_set_flags(child, t);
if (resource_int_value(name, unit, "disabled", &t) == 0 && t != 0)
device_disable(child);
}
static void
isahint_identify(driver_t *driver, device_t parent)
{
int i;
static char buf[] = "isaXXX";
/*
* Add all devices configured to be attached to parent.
*/
sprintf(buf, "isa%d", device_get_unit(parent));
for (i = resource_query_string(-1, "at", buf);
i != -1;
i = resource_query_string(i, "at", buf)) {
if (strcmp(resource_query_name(i), "atkbd") == 0)
continue; /* old GENERIC kludge */
isahint_add_device(parent,
resource_query_name(i),
resource_query_unit(i));
}
/*
* and isa?
*/
for (i = resource_query_string(-1, "at", "isa");
i != -1;
i = resource_query_string(i, "at", "isa")) {
if (strcmp(resource_query_name(i), "atkbd") == 0)
continue; /* old GENERIC kludge */
isahint_add_device(parent,
resource_query_name(i),
resource_query_unit(i));
}
}
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);