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kftxx.c revision 1.3 
      1 /* $NetBSD: kftxx.c,v 1.3 1997/04/06 20:09:14 cgd 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 <machine/options.h>		/* Pull in config options headers */
     41 
     42 #include <sys/param.h>
     43 #include <sys/systm.h>
     44 #include <sys/device.h>
     45 #include <sys/malloc.h>
     46 
     47 #include <machine/autoconf.h>
     48 #include <machine/rpb.h>
     49 #include <machine/pte.h>
     50 
     51 #include <alpha/tlsb/tlsbreg.h>
     52 #include <alpha/tlsb/tlsbvar.h>
     53 #include <alpha/tlsb/kftxxreg.h>
     54 #include <alpha/tlsb/kftxxvar.h>
     55 #include <alpha/pci/dwlpxvar.h>
     56 
     57 struct kft_softc {
     58 	struct device	sc_dev;
     59 	int		sc_node;	/* TLSB node */
     60 	u_int16_t	sc_dtype;	/* device type */
     61 };
     62 
     63 #define KV(_addr)	((caddr_t)ALPHA_PHYS_TO_K0SEG((_addr)))
     64 
     65 static int	kftmatch __P((struct device *, struct cfdata *, void *));
     66 static void	kftattach __P((struct device *, struct device *, void *));
     67 struct cfattach kft_ca = {
     68 	sizeof(struct kft_softc), kftmatch, kftattach
     69 };
     70 
     71 struct cfdriver	kft_cd = {
     72 	NULL, "kft", DV_DULL,
     73 };
     74 
     75 static int	kftprint __P((void *, const char *));
     76 void	kft_intr_establish __P((struct confargs *, int (*)(void *), void *));
     77 void	kft_intr_disestablish __P((struct confargs *));
     78 caddr_t	kft_cvtaddr __P((struct confargs *));
     79 int	kft_matchname __P((struct confargs *, char *));
     80 
     81 static int
     82 kftprint(aux, pnp)
     83 	void *aux;
     84 	const char *pnp;
     85 {
     86 	register struct kft_dev_attach_args *ka = aux;
     87 	if (pnp)
     88 		 printf("%s at %s", ka->ka_name, pnp);
     89 	return (UNCONF);
     90 }
     91 
     92 static int
     93 kftmatch(parent, cf, aux)
     94 	struct device *parent;
     95 	struct cfdata *cf;
     96 	void *aux;
     97 {
     98 	struct tlsb_dev_attach_args *ta = aux;
     99 	if (TLDEV_ISIOPORT(ta->ta_dtype))
    100 		return (1);
    101 	return (0);
    102 }
    103 
    104 static void
    105 kftattach(parent, self, aux)
    106 	struct device *parent;
    107 	struct device *self;
    108 	void *aux;
    109 {
    110 	struct tlsb_dev_attach_args *ta = aux;
    111 	struct kft_softc *sc = (struct kft_softc *)self;
    112 	struct kft_dev_attach_args ka;
    113 	int hoseno;
    114 
    115 	sc->sc_dev = *self;;
    116 	sc->sc_node = ta->ta_node;
    117 	sc->sc_dtype = ta->ta_dtype;
    118 	printf("\n");
    119 
    120 	for (hoseno = 0; hoseno < MAXHOSE; hoseno++) {
    121 		u_int32_t value =
    122 		    TLSB_GET_NODEREG(sc->sc_node, KFT_IDPNSEX(hoseno));
    123 		if (value & 0x0E000000) {
    124 			printf("%s: Hose %d IDPNSE has %x\n", self->dv_xname,
    125 			    hoseno, value);
    126 			continue;
    127 		}
    128 		if ((value & 0x1) != 0x0) {
    129 			printf("%s: Hose %d has a Bad Cable (0x%x)\n",
    130 			    self->dv_xname, hoseno, value);
    131 			continue;
    132 		}
    133 		if ((value & 0x6) != 0x6) {
    134 			if (value)
    135 				printf("%s: Hose %d is missing PWROK (0x%x)\n",
    136 				    self->dv_xname, hoseno, value);
    137 			continue;
    138 		}
    139 		ka.ka_name = "dwlpx";
    140 		ka.ka_node = sc->sc_node;
    141 		ka.ka_dtype = sc->sc_dtype;
    142 		ka.ka_hosenum = hoseno;
    143 		config_found(self, &ka, kftprint);
    144 	}
    145 }
    146