1998-07-22 08:29:26 +00:00
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/*-
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* Copyright (c) 1998 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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1998-11-28 09:55:16 +00:00
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* $Id: isa.c,v 1.7 1998/11/18 23:53:11 dfr Exp $
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1998-07-22 08:29:26 +00:00
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*/
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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/module.h>
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#include <sys/bus.h>
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#include <sys/malloc.h>
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1998-11-15 18:25:17 +00:00
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#include <sys/rman.h>
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1998-07-22 08:29:26 +00:00
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#include <isa/isareg.h>
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#include <isa/isavar.h>
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#include <machine/intr.h>
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1998-11-28 09:55:16 +00:00
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#include <machine/intrcnt.h>
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1998-11-15 18:25:17 +00:00
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#include <machine/resource.h>
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MALLOC_DEFINE(M_ISADEV, "isadev", "ISA device");
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1998-07-22 08:29:26 +00:00
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/*
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* The structure used to attach devices to the Isa.
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*/
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struct isa_device {
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1998-11-15 18:25:17 +00:00
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u_short id_port[ISA_NPORT_IVARS];
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u_short id_portsize[ISA_NPORT_IVARS];
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vm_offset_t id_maddr[ISA_NMEM_IVARS];
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vm_size_t id_msize[ISA_NMEM_IVARS];
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int id_irq[ISA_NIRQ_IVARS];
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int id_drq[ISA_NDRQ_IVARS];
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1998-07-22 08:29:26 +00:00
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int id_flags;
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1998-11-15 18:25:17 +00:00
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struct resource *id_portres[ISA_NPORT_IVARS];
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struct resource *id_memres[ISA_NMEM_IVARS];
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struct resource *id_irqres[ISA_NIRQ_IVARS];
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struct resource *id_drqres[ISA_NDRQ_IVARS];
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1998-07-22 08:29:26 +00:00
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};
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#define DEVTOISA(dev) ((struct isa_device*) device_get_ivars(dev))
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static devclass_t isa_devclass;
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1998-11-15 18:25:17 +00:00
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static struct rman isa_irq_rman;
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1998-07-22 08:29:26 +00:00
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/*
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* Device methods
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*/
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static int isa_probe(device_t dev);
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static int isa_attach(device_t dev);
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static void isa_print_child(device_t dev, device_t child);
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static int isa_read_ivar(device_t dev, device_t child, int which, u_long *result);
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static int isa_write_ivar(device_t dev, device_t child, int which, u_long result);
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1998-11-15 18:25:17 +00:00
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static struct resource *isa_alloc_resource(device_t bus, device_t child,
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int type, int *rid,
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u_long start, u_long end,
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u_long count, u_int flags);
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static int isa_release_resource(device_t bus, device_t child,
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int type, int rid, struct resource *r);
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static int isa_setup_intr(device_t dev, device_t child, struct resource *irq,
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driver_intr_t *intr, void *arg, void **cookiep);
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static int isa_teardown_intr(device_t dev, device_t child,
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struct resource *irq, void *cookie);
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1998-07-22 08:29:26 +00:00
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static device_method_t isa_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, isa_probe),
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DEVMETHOD(device_attach, isa_attach),
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DEVMETHOD(device_detach, bus_generic_detach),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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/* Bus interface */
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DEVMETHOD(bus_print_child, isa_print_child),
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DEVMETHOD(bus_read_ivar, isa_read_ivar),
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DEVMETHOD(bus_write_ivar, isa_write_ivar),
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1998-11-15 18:25:17 +00:00
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DEVMETHOD(bus_alloc_resource, isa_alloc_resource),
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DEVMETHOD(bus_release_resource, isa_release_resource),
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DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
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DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
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DEVMETHOD(bus_setup_intr, isa_setup_intr),
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DEVMETHOD(bus_teardown_intr, isa_teardown_intr),
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1998-07-22 08:29:26 +00:00
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{ 0, 0 }
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};
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static driver_t isa_driver = {
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"isa",
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isa_methods,
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DRIVER_TYPE_MISC,
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1, /* no softc */
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};
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static void
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isa_add_device(device_t dev, const char *name, int unit)
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{
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1998-11-15 18:25:17 +00:00
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struct isa_device *idev;
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device_t child;
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int sensitive, t;
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static device_t last_sensitive;
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if (resource_int_value(name, unit, "sensitive", &sensitive) != 0)
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sensitive = 0;
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1998-07-22 08:29:26 +00:00
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1998-11-15 18:25:17 +00:00
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idev = malloc(sizeof(struct isa_device), M_ISADEV, M_NOWAIT);
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1998-07-22 08:29:26 +00:00
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if (!idev)
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return;
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1998-11-15 18:25:17 +00:00
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bzero(idev, sizeof *idev);
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1998-07-22 08:29:26 +00:00
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if (resource_int_value(name, unit, "port", &t) == 0)
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1998-11-15 18:25:17 +00:00
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idev->id_port[0] = t;
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1998-07-22 08:29:26 +00:00
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else
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1998-11-15 18:25:17 +00:00
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idev->id_port[0] = 0;
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idev->id_port[1] = 0;
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1998-07-22 08:29:26 +00:00
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if (resource_int_value(name, unit, "portsize", &t) == 0)
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1998-11-15 18:25:17 +00:00
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idev->id_portsize[0] = t;
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else
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idev->id_portsize[0] = 0;
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idev->id_portsize[1] = 0;
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if (resource_int_value(name, unit, "iomem", &t) == 0)
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idev->id_maddr[0] = t;
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1998-07-22 08:29:26 +00:00
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else
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1998-11-15 18:25:17 +00:00
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idev->id_maddr[0] = 0;
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idev->id_maddr[1] = 0;
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if (resource_int_value(name, unit, "msize", &t) == 0)
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idev->id_msize[0] = t;
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else
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idev->id_msize[0] = 0;
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idev->id_msize[1] = 0;
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1998-07-22 08:29:26 +00:00
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if (resource_int_value(name, unit, "flags", &t) == 0)
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idev->id_flags = t;
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else
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idev->id_flags = 0;
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1998-11-15 18:25:17 +00:00
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1998-07-22 08:29:26 +00:00
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if (resource_int_value(name, unit, "irq", &t) == 0)
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1998-11-15 18:25:17 +00:00
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idev->id_irq[0] = t;
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1998-07-22 08:29:26 +00:00
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else
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1998-11-15 18:25:17 +00:00
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idev->id_irq[0] = -1;
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idev->id_irq[1] = -1;
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1998-07-22 08:29:26 +00:00
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1998-11-15 18:25:17 +00:00
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if (resource_int_value(name, unit, "drq", &t) == 0)
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idev->id_drq[0] = t;
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else
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idev->id_drq[0] = -1;
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idev->id_drq[1] = -1;
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if (sensitive)
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child = device_add_child_after(dev, last_sensitive, name,
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unit, idev);
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else
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child = device_add_child(dev, name, unit, idev);
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if (child == 0)
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1998-07-27 09:38:26 +00:00
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return;
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1998-11-15 18:25:17 +00:00
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else if (sensitive)
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last_sensitive = child;
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1998-07-27 09:38:26 +00:00
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if (resource_int_value(name, unit, "disabled", &t) == 0 && t != 0)
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device_disable(child);
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1998-07-22 08:29:26 +00:00
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}
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static void
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isa_intr_enable(int irq)
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{
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int s = splhigh();
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if (irq < 8)
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outb(IO_ICU1+1, inb(IO_ICU1+1) & ~(1 << irq));
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else
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1998-10-25 01:30:16 +00:00
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outb(IO_ICU2+1, inb(IO_ICU2+1) & ~(1 << (irq - 8)));
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1998-07-22 08:29:26 +00:00
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splx(s);
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}
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static void
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isa_intr_disable(int irq)
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{
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int s = splhigh();
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if (irq < 8)
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outb(IO_ICU1+1, inb(IO_ICU1+1) | (1 << irq));
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else
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1998-10-25 01:30:16 +00:00
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outb(IO_ICU2+1, inb(IO_ICU2+1) | (1 << (irq - 8)));
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1998-07-22 08:29:26 +00:00
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splx(s);
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}
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int
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isa_irq_pending(void)
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{
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u_char irr1;
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u_char irr2;
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irr1 = inb(IO_ICU1);
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irr2 = inb(IO_ICU2);
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return ((irr2 << 8) | irr1);
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}
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int
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isa_irq_mask(void)
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{
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u_char irr1;
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u_char irr2;
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irr1 = inb(IO_ICU1+1);
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irr2 = inb(IO_ICU2+1);
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return ((irr2 << 8) | irr1);
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}
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/*
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* At 'probe' time, we add all the devices which we know about to the
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* bus. The generic attach routine will probe and attach them if they
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* are alive.
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*/
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static int
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isa_probe(device_t dev)
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{
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int i;
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/*
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* Add all devices configured to be attached to isa0.
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*/
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for (i = resource_query_string(-1, "at", "isa0");
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i != -1;
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i = resource_query_string(i, "at", "isa0")) {
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isa_add_device(dev, resource_query_name(i),
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resource_query_unit(i));
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}
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1998-11-15 18:25:17 +00:00
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isa_irq_rman.rm_start = 0;
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isa_irq_rman.rm_end = 15;
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isa_irq_rman.rm_type = RMAN_ARRAY;
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isa_irq_rman.rm_descr = "ISA Interrupt request lines";
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if (rman_init(&isa_irq_rman)
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|| rman_manage_region(&isa_irq_rman, 0, 1)
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|| rman_manage_region(&isa_irq_rman, 3, 15))
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panic("isa_probe isa_irq_rman");
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1998-07-22 08:29:26 +00:00
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return 0;
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}
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extern device_t isa_bus_device;
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static int
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isa_attach(device_t dev)
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{
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1998-09-16 08:23:51 +00:00
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if (bootverbose)
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printf("isa_attach: mask=%04x\n", isa_irq_mask());
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/* mask all isa interrupts */
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outb(IO_ICU1+1, 0xff);
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outb(IO_ICU2+1, 0xff);
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1998-07-22 08:29:26 +00:00
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/* make sure chaining irq is enabled */
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isa_intr_enable(2);
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/*
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* Arrange for bus_generic_attach(dev) to be called later.
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*/
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isa_bus_device = dev;
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return 0;
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}
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static void
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isa_print_child(device_t bus, device_t dev)
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{
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1998-11-15 18:25:17 +00:00
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struct isa_device *id = DEVTOISA(dev);
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if (id->id_port[0] > 0 || id->id_port[1]
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|| id->id_maddr[0] > 0 || id->id_maddr[1]
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|| id->id_irq[0] >= 0 || id->id_irq[1] >= 0
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|| id->id_drq[0] >= 0 || id->id_drq[1] >= 0)
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printf(" at");
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if (id->id_port[0] && id->id_port[1]) {
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printf(" ports %#x", (u_int)id->id_port[0]);
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if (id->id_portsize[0])
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printf("-%#x", (u_int)(id->id_port[0]
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+ id->id_portsize[0] - 1));
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printf(" and %#x", (u_int)id->id_port[1]);
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if (id->id_portsize[1])
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printf("-%#x", (u_int)(id->id_port[1]
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+ id->id_portsize[1] - 1));
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} else if (id->id_port[0]) {
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printf(" port %#x", (u_int)id->id_port[0]);
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if (id->id_portsize[0])
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printf("-%#x", (u_int)(id->id_port[0]
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+ id->id_portsize[0] - 1));
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} else if (id->id_port[1]) {
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printf(" port %#x", (u_int)id->id_port[1]);
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if (id->id_portsize[1])
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printf("-%#x", (u_int)(id->id_port[1]
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+ id->id_portsize[1] - 1));
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}
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if (id->id_maddr[0] && id->id_maddr[1]) {
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printf(" iomem %#x", (u_int)id->id_maddr[0]);
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if (id->id_msize[0])
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|
|
printf("-%#x", (u_int)(id->id_maddr[0]
|
|
|
|
+ id->id_msize[0] - 1));
|
|
|
|
printf(" and %#x", (u_int)id->id_maddr[1]);
|
|
|
|
if (id->id_msize[1])
|
|
|
|
printf("-%#x", (u_int)(id->id_maddr[1]
|
|
|
|
+ id->id_msize[1] - 1));
|
|
|
|
} else if (id->id_maddr[0]) {
|
|
|
|
printf(" iomem %#x", (u_int)id->id_maddr[0]);
|
|
|
|
if (id->id_msize[0])
|
|
|
|
printf("-%#x", (u_int)(id->id_maddr[0]
|
|
|
|
+ id->id_msize[0] - 1));
|
|
|
|
} else if (id->id_maddr[1]) {
|
|
|
|
printf(" iomem %#x", (u_int)id->id_maddr[1]);
|
|
|
|
if (id->id_msize[1])
|
|
|
|
printf("-%#x", (u_int)(id->id_maddr[1]
|
|
|
|
+ id->id_msize[1] - 1));
|
|
|
|
}
|
|
|
|
if (id->id_irq[0] >= 0 && id->id_irq[1] >= 0)
|
|
|
|
printf(" irqs %d and %d", id->id_irq[0], id->id_irq[1]);
|
|
|
|
else if (id->id_irq[0] >= 0)
|
|
|
|
printf(" irq %d", id->id_irq[0]);
|
|
|
|
else if (id->id_irq[1] >= 0)
|
|
|
|
printf(" irq %d", id->id_irq[1]);
|
|
|
|
if (id->id_drq[0] >= 0 && id->id_drq[1] >= 0)
|
|
|
|
printf(" drqs %d and %d", id->id_drq[0], id->id_drq[1]);
|
|
|
|
else if (id->id_drq[0] >= 0)
|
|
|
|
printf(" drq %d", id->id_drq[0]);
|
|
|
|
else if (id->id_drq[1] >= 0)
|
|
|
|
printf(" drq %d", id->id_drq[1]);
|
|
|
|
|
|
|
|
if (id->id_flags)
|
|
|
|
printf(" flags %#x", id->id_flags);
|
1998-07-22 08:29:26 +00:00
|
|
|
|
|
|
|
printf(" on %s%d",
|
|
|
|
device_get_name(bus), device_get_unit(bus));
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
isa_read_ivar(device_t bus, device_t dev,
|
|
|
|
int index, u_long* result)
|
|
|
|
{
|
|
|
|
struct isa_device* idev = DEVTOISA(dev);
|
|
|
|
|
|
|
|
switch (index) {
|
1998-11-15 18:25:17 +00:00
|
|
|
case ISA_IVAR_PORT_0:
|
|
|
|
*result = idev->id_port[0];
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_PORT_1:
|
|
|
|
*result = idev->id_port[1];
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_PORTSIZE_0:
|
|
|
|
*result = idev->id_portsize[0];
|
1998-07-22 08:29:26 +00:00
|
|
|
break;
|
1998-11-15 18:25:17 +00:00
|
|
|
case ISA_IVAR_PORTSIZE_1:
|
|
|
|
*result = idev->id_portsize[1];
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_MADDR_0:
|
|
|
|
*result = idev->id_maddr[0];
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_MADDR_1:
|
|
|
|
*result = idev->id_maddr[1];
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_MSIZE_0:
|
|
|
|
*result = idev->id_msize[0];
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_MSIZE_1:
|
|
|
|
*result = idev->id_msize[1];
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_IRQ_0:
|
|
|
|
*result = idev->id_irq[0];
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_IRQ_1:
|
|
|
|
*result = idev->id_irq[1];
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_DRQ_0:
|
|
|
|
*result = idev->id_drq[0];
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_DRQ_1:
|
|
|
|
*result = idev->id_drq[1];
|
1998-07-22 08:29:26 +00:00
|
|
|
break;
|
|
|
|
case ISA_IVAR_FLAGS:
|
|
|
|
*result = idev->id_flags;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return ENOENT;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
isa_write_ivar(device_t bus, device_t dev,
|
|
|
|
int index, u_long value)
|
|
|
|
{
|
|
|
|
struct isa_device* idev = DEVTOISA(dev);
|
|
|
|
|
|
|
|
switch (index) {
|
1998-11-15 18:25:17 +00:00
|
|
|
case ISA_IVAR_PORT_0:
|
|
|
|
idev->id_port[0] = value;
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_PORT_1:
|
|
|
|
idev->id_port[1] = value;
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_PORTSIZE_0:
|
|
|
|
idev->id_portsize[0] = value;
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_PORTSIZE_1:
|
|
|
|
idev->id_portsize[1] = value;
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_MADDR_0:
|
|
|
|
idev->id_maddr[0] = value;
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_MADDR_1:
|
|
|
|
idev->id_maddr[1] = value;
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_MSIZE_0:
|
|
|
|
idev->id_msize[0] = value;
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_MSIZE_1:
|
|
|
|
idev->id_msize[1] = value;
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_IRQ_0:
|
|
|
|
idev->id_irq[0] = value;
|
1998-07-22 08:29:26 +00:00
|
|
|
break;
|
1998-11-15 18:25:17 +00:00
|
|
|
case ISA_IVAR_IRQ_1:
|
|
|
|
idev->id_irq[1] = value;
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_DRQ_0:
|
|
|
|
idev->id_drq[0] = value;
|
|
|
|
break;
|
|
|
|
case ISA_IVAR_DRQ_1:
|
|
|
|
idev->id_drq[1] = value;
|
1998-07-22 08:29:26 +00:00
|
|
|
break;
|
|
|
|
case ISA_IVAR_FLAGS:
|
|
|
|
idev->id_flags = value;
|
|
|
|
break;
|
1998-11-15 18:25:17 +00:00
|
|
|
default:
|
|
|
|
return (ENOENT);
|
|
|
|
}
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This implementation simply passes the request up to the parent
|
|
|
|
* bus, which in our case is the pci chipset device, substituting any
|
|
|
|
* configured values if the caller defaulted. We can get away with
|
|
|
|
* this because there is no special mapping for ISA resources on this
|
|
|
|
* platform. When porting this code to another architecture, it may be
|
|
|
|
* necessary to interpose a mapping layer here.
|
|
|
|
*
|
|
|
|
* We manage our own interrupt resources since ISA interrupts go through
|
|
|
|
* the ISA PIC, not the PCI interrupt controller.
|
|
|
|
*/
|
|
|
|
static struct resource *
|
|
|
|
isa_alloc_resource(device_t bus, device_t child, int type, int *rid,
|
|
|
|
u_long start, u_long end, u_long count, u_int flags)
|
|
|
|
{
|
|
|
|
int isdefault;
|
|
|
|
struct resource *rv, **rvp;
|
1998-11-18 23:53:12 +00:00
|
|
|
struct isa_device *id;
|
1998-11-15 18:25:17 +00:00
|
|
|
|
1998-11-18 23:53:12 +00:00
|
|
|
if (child)
|
|
|
|
id = DEVTOISA(child);
|
|
|
|
else
|
|
|
|
id = NULL;
|
1998-11-15 18:25:17 +00:00
|
|
|
isdefault = (start == 0UL && end == ~0UL && *rid == 0);
|
|
|
|
if (*rid > 1)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
switch (type) {
|
|
|
|
case SYS_RES_IRQ:
|
1998-11-18 23:53:12 +00:00
|
|
|
/*
|
|
|
|
* The hack implementation of intr_create() passes a
|
|
|
|
* NULL child device.
|
|
|
|
*/
|
|
|
|
if (isdefault && (id == NULL || id->id_irq[0] >= 0)) {
|
1998-11-15 18:25:17 +00:00
|
|
|
start = id->id_irq[0];
|
|
|
|
end = id->id_irq[0];
|
|
|
|
count = 1;
|
|
|
|
}
|
|
|
|
rv = rman_reserve_resource(&isa_irq_rman,
|
|
|
|
start, end, count,
|
|
|
|
0, child);
|
|
|
|
if (!rv)
|
|
|
|
return 0;
|
1998-11-18 23:53:12 +00:00
|
|
|
if (id) {
|
|
|
|
id->id_irqres[*rid] = rv;
|
|
|
|
id->id_irq[*rid] = rv->r_start;
|
|
|
|
}
|
1998-11-15 18:25:17 +00:00
|
|
|
return rv;
|
|
|
|
|
|
|
|
case SYS_RES_MEMORY:
|
|
|
|
if (isdefault && id->id_maddr[0]) {
|
|
|
|
start = id->id_maddr[0];
|
|
|
|
count = max(count, (u_long)id->id_msize[0]);
|
|
|
|
end = id->id_maddr[0] + count;
|
|
|
|
}
|
|
|
|
rvp = &id->id_memres[*rid];
|
1998-07-22 08:29:26 +00:00
|
|
|
break;
|
1998-11-15 18:25:17 +00:00
|
|
|
|
|
|
|
case SYS_RES_IOPORT:
|
|
|
|
if (isdefault && id->id_port[0]) {
|
|
|
|
start = id->id_port[0];
|
|
|
|
count = max(count, (u_long)id->id_portsize[0]);
|
|
|
|
end = id->id_port[0] + count;
|
|
|
|
}
|
|
|
|
rvp = &id->id_portres[*rid];
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
return 0;
|
1998-07-22 08:29:26 +00:00
|
|
|
}
|
1998-11-15 18:25:17 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* If the client attempts to reallocate a resource without
|
|
|
|
* releasing what was there previously, die horribly so that
|
|
|
|
* he knows how he !@#$ed up.
|
|
|
|
*/
|
|
|
|
if (*rvp != 0)
|
|
|
|
panic("%s%d: (%d, %d) not free for %s%d\n",
|
|
|
|
device_get_name(bus), device_get_unit(bus),
|
|
|
|
type, *rid,
|
|
|
|
device_get_name(child), device_get_unit(child));
|
|
|
|
|
|
|
|
/*
|
|
|
|
* nexus_alloc_resource had better not change *rid...
|
|
|
|
*/
|
|
|
|
rv = BUS_ALLOC_RESOURCE(device_get_parent(bus), child, type, rid,
|
|
|
|
start, end, count, flags);
|
|
|
|
if ((*rvp = rv) != 0) {
|
|
|
|
switch (type) {
|
|
|
|
case SYS_RES_MEMORY:
|
|
|
|
id->id_maddr[*rid] = rv->r_start;
|
|
|
|
id->id_msize[*rid] = count;
|
|
|
|
break;
|
|
|
|
case SYS_RES_IOPORT:
|
|
|
|
id->id_port[*rid] = rv->r_start;
|
|
|
|
id->id_portsize[*rid] = count;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
isa_release_resource(device_t bus, device_t child, int type, int rid,
|
|
|
|
struct resource *r)
|
|
|
|
{
|
|
|
|
int rv;
|
|
|
|
struct resource **rp;
|
|
|
|
struct isa_device *id = DEVTOISA(child);
|
|
|
|
|
|
|
|
if (rid > 1)
|
|
|
|
return EINVAL;
|
|
|
|
|
|
|
|
switch (type) {
|
|
|
|
case SYS_RES_IRQ:
|
|
|
|
return (rman_release_resource(r));
|
|
|
|
case SYS_RES_DRQ:
|
|
|
|
case SYS_RES_IOPORT:
|
|
|
|
case SYS_RES_MEMORY:
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return (ENOENT);
|
|
|
|
}
|
|
|
|
|
|
|
|
rv = BUS_RELEASE_RESOURCE(device_get_parent(bus), child, type, rid, r);
|
|
|
|
|
|
|
|
if (rv) {
|
|
|
|
switch (type) {
|
|
|
|
case SYS_RES_IRQ:
|
|
|
|
id->id_irqres[rid] = 0;
|
|
|
|
id->id_irq[rid] = -1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case SYS_RES_DRQ:
|
|
|
|
id->id_drqres[rid] = 0;
|
|
|
|
id->id_drq[rid] = -1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case SYS_RES_MEMORY:
|
|
|
|
id->id_memres[rid] = 0;
|
|
|
|
id->id_maddr[rid] = 0;
|
|
|
|
id->id_msize[rid] = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case SYS_RES_IOPORT:
|
|
|
|
id->id_portres[rid] = 0;
|
|
|
|
id->id_port[rid] = 0;
|
|
|
|
id->id_portsize[rid] = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
return ENOENT;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return rv;
|
1998-07-22 08:29:26 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
struct isa_intr {
|
|
|
|
void *ih;
|
|
|
|
driver_intr_t *intr;
|
|
|
|
void *arg;
|
|
|
|
int irq;
|
|
|
|
};
|
|
|
|
|
Lots of changes, including:
* Support for AlphaStation 200, 250, 255, 400
* Untested support for UDB, Multia, AXPpci33 (Noname)
* Support for Personal Workstation 433a/433au, 500a/500au, 600a/600au (Miata)
* Some minor fixes and improvements to interrupt handling.
Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> (AS200, Miata)
Obtained from: NetBSD (some code for AS200, Miata, Noname)
1998-08-10 07:53:59 +00:00
|
|
|
/*
|
|
|
|
* Wrap ISA interrupt routines so that we can feed non-specific
|
|
|
|
* EOI to the PICs.
|
|
|
|
*/
|
|
|
|
|
1998-07-22 08:29:26 +00:00
|
|
|
static void
|
|
|
|
isa_handle_intr(void *arg)
|
|
|
|
{
|
|
|
|
struct isa_intr *ii = arg;
|
|
|
|
int irq = ii->irq;
|
|
|
|
|
|
|
|
ii->intr(ii->arg);
|
|
|
|
|
|
|
|
if (ii->irq > 7)
|
|
|
|
outb(IO_ICU2, 0x20 | (irq & 7));
|
|
|
|
outb(IO_ICU1, 0x20 | (irq > 7 ? 2 : irq));
|
|
|
|
}
|
|
|
|
|
1998-11-15 18:25:17 +00:00
|
|
|
static int
|
|
|
|
isa_setup_intr(device_t dev, device_t child,
|
|
|
|
struct resource *irq,
|
|
|
|
driver_intr_t *intr, void *arg, void **cookiep)
|
1998-07-22 08:29:26 +00:00
|
|
|
{
|
|
|
|
struct isa_intr *ii;
|
1998-11-15 18:25:17 +00:00
|
|
|
int error;
|
|
|
|
|
|
|
|
error = rman_activate_resource(irq);
|
|
|
|
if (error)
|
|
|
|
return error;
|
1998-07-22 08:29:26 +00:00
|
|
|
|
|
|
|
ii = malloc(sizeof(struct isa_intr), M_DEVBUF, M_NOWAIT);
|
|
|
|
if (!ii)
|
1998-11-15 18:25:17 +00:00
|
|
|
return ENOMEM;
|
1998-07-22 08:29:26 +00:00
|
|
|
ii->intr = intr;
|
|
|
|
ii->arg = arg;
|
1998-11-15 18:25:17 +00:00
|
|
|
ii->irq = irq->r_start;
|
|
|
|
|
|
|
|
error = alpha_setup_intr(0x800 + (irq->r_start << 4),
|
1998-11-28 09:55:16 +00:00
|
|
|
isa_handle_intr, ii, &ii->ih,
|
|
|
|
&intrcnt[INTRCNT_ISA_IRQ + irq->r_start]);
|
1998-11-15 18:25:17 +00:00
|
|
|
if (error) {
|
1998-07-22 08:29:26 +00:00
|
|
|
free(ii, M_DEVBUF);
|
1998-11-15 18:25:17 +00:00
|
|
|
return error;
|
1998-07-22 08:29:26 +00:00
|
|
|
}
|
1998-11-15 18:25:17 +00:00
|
|
|
isa_intr_enable(irq->r_start);
|
1998-07-22 08:29:26 +00:00
|
|
|
|
1998-11-15 18:25:17 +00:00
|
|
|
*cookiep = ii;
|
|
|
|
return 0;
|
1998-07-22 08:29:26 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
1998-11-15 18:25:17 +00:00
|
|
|
isa_teardown_intr(device_t dev, device_t child,
|
|
|
|
struct resource *irq, void *cookie)
|
1998-07-22 08:29:26 +00:00
|
|
|
{
|
1998-11-15 18:25:17 +00:00
|
|
|
struct isa_intr *ii = cookie;
|
1998-07-22 08:29:26 +00:00
|
|
|
|
1998-11-15 18:25:17 +00:00
|
|
|
alpha_teardown_intr(ii->ih);
|
|
|
|
isa_intr_disable(irq->r_start);
|
|
|
|
|
|
|
|
return 0;
|
1998-07-22 08:29:26 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
DRIVER_MODULE(isa, cia, isa_driver, isa_devclass, 0, 0);
|
Lots of changes, including:
* Support for AlphaStation 200, 250, 255, 400
* Untested support for UDB, Multia, AXPpci33 (Noname)
* Support for Personal Workstation 433a/433au, 500a/500au, 600a/600au (Miata)
* Some minor fixes and improvements to interrupt handling.
Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> (AS200, Miata)
Obtained from: NetBSD (some code for AS200, Miata, Noname)
1998-08-10 07:53:59 +00:00
|
|
|
DRIVER_MODULE(isa, apecs, isa_driver, isa_devclass, 0, 0);
|
|
|
|
DRIVER_MODULE(isa, lca, isa_driver, isa_devclass, 0, 0);
|