freebsd-nq/sys/i386/isa/isa_compat.c
1999-05-08 21:59:43 +00:00

289 lines
7.4 KiB
C

/*-
* Copyright (c) 1998 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.
*
* $Id: isa_compat.c,v 1.8 1999/05/08 18:20:03 peter Exp $
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/vmparam.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <machine/pmap.h>
#include <machine/md_var.h>
#include <machine/resource.h>
#include <isa/isavar.h>
#include <i386/isa/isa_compat.h>
#include <i386/isa/isa_device.h>
struct isa_compat_resources {
struct resource *ports;
struct resource *memory;
struct resource *drq;
struct resource *irq;
};
int
isa_compat_nextid(void)
{
static int id = 2; /* id_id of -1, 0 and 1 are "used" */
return id++;
}
static void
isa_compat_alloc_resources(device_t dev, struct isa_compat_resources *res)
{
int rid;
if (isa_get_port(dev) != -1) {
rid = 0;
res->ports = bus_alloc_resource(dev, SYS_RES_IOPORT,
&rid, 0ul, ~0ul, 1,
RF_ACTIVE);
if (res->ports == NULL)
printf("isa_compat: didn't get ports for %s\n",
device_get_name(dev));
} else
res->ports = 0;
if (isa_get_maddr(dev) != 0) {
rid = 0;
res->memory = bus_alloc_resource(dev, SYS_RES_MEMORY,
&rid, 0ul, ~0ul, 1,
RF_ACTIVE);
if (res->memory == NULL)
printf("isa_compat: didn't get memory for %s\n",
device_get_name(dev));
} else
res->memory = 0;
if (isa_get_drq(dev) != -1) {
rid = 0;
res->drq = bus_alloc_resource(dev, SYS_RES_DRQ,
&rid, 0ul, ~0ul, 1,
RF_ACTIVE);
if (res->drq == NULL)
printf("isa_compat: didn't get drq for %s\n",
device_get_name(dev));
} else
res->drq = 0;
if (isa_get_irq(dev) != -1) {
rid = 0;
res->irq = bus_alloc_resource(dev, SYS_RES_IRQ,
&rid, 0ul, ~0ul, 1,
RF_SHAREABLE | RF_ACTIVE);
if (res->irq == NULL)
printf("isa_compat: didn't get irq for %s\n",
device_get_name(dev));
} else
res->irq = 0;
}
static void
isa_compat_release_resources(device_t dev, struct isa_compat_resources *res)
{
if (res->ports) {
bus_release_resource(dev, SYS_RES_IOPORT, 0, res->ports);
res->ports = 0;
}
if (res->memory) {
bus_release_resource(dev, SYS_RES_MEMORY, 0, res->memory);
res->memory = 0;
}
if (res->drq) {
bus_release_resource(dev, SYS_RES_DRQ, 0, res->drq);
res->drq = 0;
}
if (res->irq) {
bus_release_resource(dev, SYS_RES_IRQ, 0, res->irq);
res->irq = 0;
}
}
#define irqmask(x) ((x) < 0 ? 0 : (1 << (x)))
static int
isa_compat_probe(device_t dev)
{
struct isa_device *dvp = device_get_softc(dev);
struct isa_compat_resources res;
struct old_isa_driver *op;
bzero(&res, sizeof(res));
/*
* Fill in the isa_device fields.
*/
op = device_get_driver(dev)->priv;
dvp->id_id = isa_compat_nextid();
dvp->id_driver = op->driver;
dvp->id_iobase = isa_get_port(dev);
dvp->id_irq = irqmask(isa_get_irq(dev));
dvp->id_drq = isa_get_drq(dev);
dvp->id_maddr = (void *)isa_get_maddr(dev);
dvp->id_msize = isa_get_msize(dev);
dvp->id_unit = device_get_unit(dev);
dvp->id_flags = isa_get_flags(dev);
dvp->id_enabled = device_is_enabled(dev); /* XXX unused */
dvp->id_device = dev;
/*
* Do the wrapped probe.
*/
if (dvp->id_driver->probe) {
int portsize;
void *maddr;
isa_compat_alloc_resources(dev, &res);
if (res.memory)
maddr = rman_get_virtual(res.memory);
else
maddr = 0;
dvp->id_maddr = maddr;
portsize = dvp->id_driver->probe(dvp);
isa_compat_release_resources(dev, &res);
if (portsize != 0) {
if (portsize > 0)
isa_set_portsize(dev, portsize);
if (dvp->id_iobase != isa_get_port(dev))
isa_set_port(dev, dvp->id_iobase);
if (dvp->id_irq != irqmask(isa_get_irq(dev)))
isa_set_irq(dev, ffs(dvp->id_irq) - 1);
if (dvp->id_drq != isa_get_drq(dev))
isa_set_drq(dev, dvp->id_drq);
if (dvp->id_maddr != maddr) {
maddr = dvp->id_maddr;
if (maddr != NULL)
isa_set_maddr(dev, kvtop(maddr));
else
isa_set_maddr(dev, (int)maddr);
}
if (dvp->id_msize != isa_get_msize(dev))
isa_set_msize(dev, dvp->id_msize);
return 0;
}
}
return ENXIO;
}
static int
isa_compat_attach(device_t dev)
{
struct isa_device *dvp = device_get_softc(dev);
struct isa_compat_resources res;
int error;
bzero(&res, sizeof(res));
isa_compat_alloc_resources(dev, &res);
if (dvp->id_driver->attach)
dvp->id_driver->attach(dvp);
if (res.irq && dvp->id_irq && dvp->id_intr) {
struct old_isa_driver *op;
void *ih;
op = device_get_driver(dev)->priv;
error = BUS_SETUP_INTR(device_get_parent(dev), dev,
res.irq, op->type,
dvp->id_intr,
(void *)(uintptr_t)dvp->id_unit,
&ih);
if (error)
printf("isa_compat_attach: failed to setup intr: %d\n",
error);
}
return 0;
}
static device_method_t isa_compat_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, isa_compat_probe),
DEVMETHOD(device_attach, isa_compat_attach),
{ 0, 0 }
};
/*
* Create a new style driver around each old isa driver.
*/
void
isa_wrap_old_drivers(void)
{
int i;
struct old_isa_driver *op;
devclass_t isa_devclass = devclass_find("isa");
for (i = 0, op = &old_drivers[0]; i < old_drivers_count; i++, op++) {
driver_t *driver;
driver = malloc(sizeof(driver_t), M_DEVBUF, M_NOWAIT);
if (!driver)
continue;
bzero(driver, sizeof(driver_t));
driver->name = op->driver->name;
driver->methods = isa_compat_methods;
driver->softc = sizeof(struct isa_device);
driver->priv = op;
if (op->driver->sensitive_hw)
resource_set_int(op->driver->name, -1, "sensitive", 1);
devclass_add_driver(isa_devclass, driver);
}
}
int
haveseen_iobase(struct isa_device *dvp, int size)
{
int rid;
struct resource *res;
device_t dev = dvp->id_device;
int base = dvp->id_iobase;
/*
* Ask for resource 1 so that we don't hurt our hints. In theory
* this should work, but....
*/
rid = 1;
res = bus_alloc_resource(dev, SYS_RES_IOPORT,
&rid, base, base + size, size, RF_ACTIVE);
if (res)
bus_release_resource(dev, SYS_RES_IOPORT, rid, res);
return res ? 0 : 1;
}
void
reconfig_isadev(isdp, mp)
struct isa_device *isdp;
u_int *mp;
{
printf("reconfig_isadev() called - FIXME!\n");
}