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kftxx.c revision 1.10 
      1 /* $NetBSD: kftxx.c,v 1.10 2002/09/27 20:29:40 thorpej Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1997 by Matthew Jacob
      5  * NASA AMES Research Center.
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice immediately at the beginning of the file, without modification,
     13  *    this list of conditions, and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     23  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
     24  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     30  * SUCH DAMAGE.
     31  */
     32 
     33 /*
     34  * KFTIA and KFTHA Bus Adapter Node for I/O hoses
     35  * found on AlphaServer 8200 and 8400 systems.
     36  *
     37  * i.e., handler for all TLSB I/O nodes.
     38  */
     39 
     40 #include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
     41 
     42 __KERNEL_RCSID(0, "$NetBSD: kftxx.c,v 1.10 2002/09/27 20:29:40 thorpej Exp $");
     43 
     44 #include <sys/param.h>
     45 #include <sys/systm.h>
     46 #include <sys/device.h>
     47 #include <sys/malloc.h>
     48 
     49 #include <machine/autoconf.h>
     50 #include <machine/rpb.h>
     51 #include <machine/pte.h>
     52 
     53 #include <alpha/tlsb/tlsbreg.h>
     54 #include <alpha/tlsb/tlsbvar.h>
     55 #include <alpha/tlsb/kftxxreg.h>
     56 #include <alpha/tlsb/kftxxvar.h>
     57 #include <alpha/pci/dwlpxvar.h>
     58 
     59 struct kft_softc {
     60 	struct device	sc_dev;
     61 	int		sc_node;	/* TLSB node */
     62 	u_int16_t	sc_dtype;	/* device type */
     63 };
     64 
     65 #define KV(_addr)	((caddr_t)ALPHA_PHYS_TO_K0SEG((_addr)))
     66 
     67 static int	kftmatch __P((struct device *, struct cfdata *, void *));
     68 static void	kftattach __P((struct device *, struct device *, void *));
     69 const struct cfattach kft_ca = {
     70 	sizeof(struct kft_softc), kftmatch, kftattach
     71 };
     72 
     73 static int	kftprint __P((void *, const char *));
     74 
     75 static int
     76 kftprint(aux, pnp)
     77 	void *aux;
     78 	const char *pnp;
     79 {
     80 	register struct kft_dev_attach_args *ka = aux;
     81 	if (pnp)
     82 		 printf("%s at %s", ka->ka_name, pnp);
     83 	printf(" hose %d", ka->ka_hosenum);
     84 	return (UNCONF);
     85 }
     86 
     87 static int
     88 kftmatch(parent, cf, aux)
     89 	struct device *parent;
     90 	struct cfdata *cf;
     91 	void *aux;
     92 {
     93 	struct tlsb_dev_attach_args *ta = aux;
     94 	if (TLDEV_ISIOPORT(ta->ta_dtype))
     95 		return (1);
     96 	return (0);
     97 }
     98 
     99 static void
    100 kftattach(parent, self, aux)
    101 	struct device *parent;
    102 	struct device *self;
    103 	void *aux;
    104 {
    105 	struct tlsb_dev_attach_args *ta = aux;
    106 	struct kft_softc *sc = (struct kft_softc *)self;
    107 	struct kft_dev_attach_args ka;
    108 	int hoseno;
    109 
    110 	sc->sc_node = ta->ta_node;
    111 	sc->sc_dtype = ta->ta_dtype;
    112 
    113 	printf("\n");
    114 
    115 	for (hoseno = 0; hoseno < MAXHOSE; hoseno++) {
    116 		u_int32_t value =
    117 		    TLSB_GET_NODEREG(sc->sc_node, KFT_IDPNSEX(hoseno));
    118 		if (value & 0x0E000000) {
    119 			printf("%s: Hose %d IDPNSE has %x\n", self->dv_xname,
    120 			    hoseno, value);
    121 			continue;
    122 		}
    123 		if ((value & 0x1) != 0x0) {
    124 			printf("%s: Hose %d has a Bad Cable (0x%x)\n",
    125 			    self->dv_xname, hoseno, value);
    126 			continue;
    127 		}
    128 		if ((value & 0x6) != 0x6) {
    129 			if (value)
    130 				printf("%s: Hose %d is missing PWROK (0x%x)\n",
    131 				    self->dv_xname, hoseno, value);
    132 			continue;
    133 		}
    134 		ka.ka_name = "dwlpx";
    135 		ka.ka_node = sc->sc_node;
    136 		ka.ka_dtype = sc->sc_dtype;
    137 		ka.ka_hosenum = hoseno;
    138 		config_found(self, &ka, kftprint);
    139 	}
    140 }
    141