freebsd-nq/sys/alpha/tlsb/kftxx.c
Matthew N. Dodd fe0d408987 Remove the 'ivars' arguement to device_add_child() and
device_add_child_ordered().  'ivars' may now be set using the
device_set_ivars() function.

This makes it easier for us to change how arbitrary data structures are
associated with a device_t.  Eventually we won't be modifying device_t
to add additional pointers for ivars, softc data etc.

Despite my best efforts I've probably forgotten something so let me know
if this breaks anything.  I've been running with this change for months
and its been quite involved actually isolating all the changes from
the rest of the local changes in my tree.

Reviewed by:	peter, dfr
1999-12-03 08:41:24 +00:00

198 lines
5.3 KiB
C

/* $FreeBSD$ */
/* $NetBSD: kftxx.c,v 1.9 1998/05/14 00:01:32 thorpej Exp $ */
/*
* Copyright (c) 1997 by Matthew Jacob
* NASA AMES Research Center.
* 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 immediately at the beginning of the file, without modification,
* 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*/
/*
* KFTIA and KFTHA Bus Adapter Node for I/O hoses
* found on AlphaServer 8200 and 8400 systems.
*
* i.e., handler for all TLSB I/O nodes.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/rpb.h>
#include <alpha/tlsb/tlsbreg.h>
#include <alpha/tlsb/tlsbvar.h>
#include <alpha/tlsb/kftxxreg.h>
#include <alpha/tlsb/kftxxvar.h>
struct kft_softc {
int sc_node; /* TLSB node */
u_int16_t sc_dtype; /* device type */
};
/*
* Instance variables for kft devices.
*/
struct kft_device {
char * kd_name; /* name */
int kd_node; /* node number */
u_int16_t kd_dtype; /* device type */
u_int16_t kd_hosenum; /* hose number */
};
#define KV(_addr) ((caddr_t)ALPHA_PHYS_TO_K0SEG((_addr)))
static devclass_t kft_devclass;
/*
* Device methods
*/
static int kft_probe(device_t dev);
static int kft_print_child(device_t dev, device_t child);
static int kft_read_ivar(device_t dev, device_t child, int which, u_long *result);;
static device_method_t kft_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, kft_probe),
DEVMETHOD(device_attach, bus_generic_attach),
DEVMETHOD(device_detach, bus_generic_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
/* Bus interface */
DEVMETHOD(bus_print_child, kft_print_child),
DEVMETHOD(bus_read_ivar, kft_read_ivar),
DEVMETHOD(bus_write_ivar, bus_generic_write_ivar),
DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
{ 0, 0 }
};
static driver_t kft_driver = {
"kft",
kft_methods,
1, /* no softc */
};
static int
kft_probe(device_t dev)
{
device_t child;
struct kft_softc *sc = (struct kft_softc *) device_get_softc(dev);
struct kft_device* kd;
int hoseno;
if (!TLDEV_ISIOPORT(tlsb_get_dtype(dev)))
return ENXIO;
sc->sc_node = tlsb_get_node(dev);
sc->sc_dtype = tlsb_get_dtype(dev);
for (hoseno = 0; hoseno < MAXHOSE; hoseno++) {
u_int32_t value =
TLSB_GET_NODEREG(sc->sc_node, KFT_IDPNSEX(hoseno));
if (value & 0x0E000000) {
printf("%s%d: Hose %d IDPNSE has %x\n",
device_get_name(dev), device_get_unit(dev),
hoseno, value);
continue;
}
if ((value & 0x1) != 0x0) {
printf("%s%d: Hose %d has a Bad Cable (0x%x)\n",
device_get_name(dev), device_get_unit(dev),
hoseno, value);
continue;
}
if ((value & 0x6) != 0x6) {
if (value)
printf("%s%d: Hose %d is missing PWROK (0x%x)\n",
device_get_name(dev), device_get_unit(dev),
hoseno, value);
continue;
}
kd = (struct kft_device*) malloc(sizeof(struct kft_device),
M_DEVBUF, M_NOWAIT);
if (!kd) continue;
kd->kd_name = "dwlpx";
kd->kd_node = sc->sc_node;
kd->kd_dtype = sc->sc_dtype;
kd->kd_hosenum = hoseno;
child = device_add_child(dev, kd->kd_name, -1);
device_set_ivars(child, kd);
}
return 0;
}
static int
kft_print_child(device_t bus, device_t dev)
{
struct kft_device *kd = (struct kft_device*) device_get_ivars(dev);
int retval = 0;
retval += bus_print_child_header(bus, dev);
retval += printf(" on %s hose %d\n", device_get_nameunit(bus),
kd->kd_hosenum);
return (retval);
}
static int
kft_read_ivar(device_t bus, device_t dev,
int index, u_long* result)
{
struct kft_device *kd = (struct kft_device*) device_get_ivars(dev);
switch (index) {
case KFT_IVAR_NAME:
*result = (u_long) kd->kd_name;
return 0;
case KFT_IVAR_NODE:
*result = (u_long) kd->kd_node;
return 0;
case KFT_IVAR_DTYPE:
*result = (u_long) kd->kd_dtype;
return 0;
case KFT_IVAR_HOSENUM:
*result = (u_long) kd->kd_hosenum;
return 0;
default:
return ENOENT;
}
}
DRIVER_MODULE(kft, tlsb, kft_driver, kft_devclass, 0, 0);