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8a9bc9c03b
disabled. - Change the apm driver to match the acpi driver's behavior by checking to see if the device is disabled in the identify routine instead of in the probe routine. This way if the device is disabled it is never created. Note that a few places (ips(4), Alpha SMP) used "disable" instead of "disabled" for their hint names, and these hints must be changed to "disabled". If this is a big problem, resource_disabled() can always be changed to honor both names.
132 lines
3.8 KiB
C
132 lines
3.8 KiB
C
/*-
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* Copyright (c) 1999 Doug Rabson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <sys/module.h>
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#include <isa/isavar.h>
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#include <machine/resource.h>
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static void
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isahint_add_device(device_t parent, const char *name, int unit)
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{
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device_t child;
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int sensitive, start, count, t;
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int order;
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/* device-specific flag overrides any wildcard */
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sensitive = 0;
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if (resource_int_value(name, unit, "sensitive", &sensitive) != 0)
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resource_int_value(name, -1, "sensitive", &sensitive);
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if (sensitive)
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order = ISA_ORDER_SENSITIVE;
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else
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order = ISA_ORDER_SPECULATIVE;
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child = BUS_ADD_CHILD(parent, order, name, unit);
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if (child == 0)
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return;
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start = 0;
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count = 0;
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resource_int_value(name, unit, "port", &start);
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resource_int_value(name, unit, "portsize", &count);
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if (start > 0 || count > 0)
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bus_set_resource(child, SYS_RES_IOPORT, 0, start, count);
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start = 0;
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count = 0;
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resource_int_value(name, unit, "maddr", &start);
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resource_int_value(name, unit, "msize", &count);
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if (start > 0 || count > 0)
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bus_set_resource(child, SYS_RES_MEMORY, 0, start, count);
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if (resource_int_value(name, unit, "irq", &start) == 0 && start > 0)
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bus_set_resource(child, SYS_RES_IRQ, 0, start, 1);
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if (resource_int_value(name, unit, "drq", &start) == 0 && start >= 0)
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bus_set_resource(child, SYS_RES_DRQ, 0, start, 1);
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if (resource_int_value(name, unit, "flags", &t) == 0)
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device_set_flags(child, t);
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if (resource_disabled(name, unit))
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device_disable(child);
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}
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static void
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isahint_identify(driver_t *driver, device_t parent)
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{
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int i;
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static char buf[] = "isaXXX";
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const char *dname;
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int dunit;
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/*
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* Add all devices configured to be attached to parent.
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*/
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sprintf(buf, "isa%d", device_get_unit(parent));
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i = 0;
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while ((resource_find_match(&i, &dname, &dunit, "at", buf)) == 0) {
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if (strcmp(dname, "atkbd") == 0)
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continue; /* old GENERIC kludge */
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isahint_add_device(parent, dname, dunit);
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}
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/*
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* and isa?
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*/
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i = 0;
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while ((resource_find_match(&i, &dname, &dunit, "at", "isa")) == 0) {
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if (strcmp(dname, "atkbd") == 0)
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continue; /* old GENERIC kludge */
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isahint_add_device(parent, dname, dunit);
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}
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}
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static device_method_t isahint_methods[] = {
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/* Device interface */
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DEVMETHOD(device_identify, isahint_identify),
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{ 0, 0 }
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};
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static driver_t isahint_driver = {
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"hint",
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isahint_methods,
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1, /* no softc */
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};
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static devclass_t hint_devclass;
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DRIVER_MODULE(isahint, isa, isahint_driver, hint_devclass, 0, 0);
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