/* $NetBSD: kftxx.c,v 1.19 2021/08/07 16:18:41 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/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: kftxx.c,v 1.19 2021/08/07 16:18:41 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <machine/autoconf.h>
#include <machine/rpb.h>
#include <machine/pte.h>
#include <alpha/tlsb/tlsbreg.h>
#include <alpha/tlsb/tlsbvar.h>
#include <alpha/tlsb/kftxxreg.h>
#include <alpha/tlsb/kftxxvar.h>
#include <alpha/pci/dwlpxvar.h>
struct kft_softc {
device_t sc_dev;
int sc_node; /* TLSB node */
uint16_t sc_dtype; /* device type */
};
#define KV(_addr) ((void *)ALPHA_PHYS_TO_K0SEG((_addr)))
static int kftmatch(device_t, cfdata_t, void *);
static void kftattach(device_t, device_t, void *);
CFATTACH_DECL_NEW(kft, sizeof(struct kft_softc),
kftmatch, kftattach, NULL, NULL);
static int kftprint(void *, const char *);
static int
kftprint(void *aux, const char *pnp)
{
register struct kft_dev_attach_args *ka = aux;
if (pnp)
aprint_normal("%s at %s", ka->ka_name, pnp);
aprint_normal(" hose %d", ka->ka_hosenum);
return (UNCONF);
}
static int
kftmatch(device_t parent, cfdata_t cf, void *aux)
{
struct tlsb_dev_attach_args *ta = aux;
if (TLDEV_ISIOPORT(ta->ta_dtype))
return (1);
return (0);
}
static void
kftattach(device_t parent, device_t self, void *aux)
{
struct tlsb_dev_attach_args *ta = aux;
struct kft_softc *sc = device_private(self);
struct kft_dev_attach_args ka;
int hoseno;
sc->sc_dev = self;
sc->sc_node = ta->ta_node;
sc->sc_dtype = ta->ta_dtype;
aprint_normal("\n");
for (hoseno = 0; hoseno < MAXHOSE; hoseno++) {
uint32_t value =
TLSB_GET_NODEREG(sc->sc_node, KFT_IDPNSEX(hoseno));
if (value & 0x0E000000) {
aprint_error_dev(self, "Hose %d IDPNSE has %x\n",
hoseno, value);
continue;
}
if ((value & 0x1) != 0x0) {
aprint_error_dev(self,
"Hose %d has a Bad Cable (0x%x)\n", hoseno, value);
continue;
}
if ((value & 0x6) != 0x6) {
if (value)
aprint_error_dev(self,
"Hose %d is missing PWROK (0x%x)\n",
hoseno, value);
continue;
}
ka.ka_name = "dwlpx";
ka.ka_node = sc->sc_node;
ka.ka_dtype = sc->sc_dtype;
ka.ka_hosenum = hoseno;
config_found(self, &ka, kftprint, CFARGS_NONE);
}
}
