sys/arch/alpha/tlsb/kftxx.c

   1 /* $NetBSD: kftxx.c,v 1.14 2009/03/14 14:45:54 dsl 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 1.14 2009/03/14 14:45:54 dsl 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)       ((void *)ALPHA_PHYS_TO_K0SEG((_addr)))
  66
  67 static int      kftmatch(struct device *, struct cfdata *, void *);
  68 static void     kftattach(struct device *, struct device *, void *);
  69 CFATTACH_DECL(kft, sizeof(struct kft_softc),
  70     kftmatch, kftattach, NULL, NULL);
  71
  72 static int      kftprint(void *, const char *);
  73
  74 static int
  75 kftprint(void *aux, const char *pnp)
  76 {
  77         register struct kft_dev_attach_args *ka = aux;
  78         if (pnp)
  79                  aprint_normal("%s at %s", ka->ka_name, pnp);
  80         aprint_normal(" hose %d", ka->ka_hosenum);
  81         return (UNCONF);
  82 }
  83
  84 static int
  85 kftmatch(struct device *parent, struct cfdata *cf, void *aux)
  86 {
  87         struct tlsb_dev_attach_args *ta = aux;
  88         if (TLDEV_ISIOPORT(ta->ta_dtype))
  89                 return (1);
  90         return (0);
  91 }
  92
  93 static void
  94 kftattach(struct device *parent, struct device *self, void *aux)
  95 {
  96         struct tlsb_dev_attach_args *ta = aux;
  97         struct kft_softc *sc = (struct kft_softc *)self;
  98         struct kft_dev_attach_args ka;
  99         int hoseno;
 100
 101         sc->sc_node = ta->ta_node;
 102         sc->sc_dtype = ta->ta_dtype;
 103
 104         printf("\n");
 105
 106         for (hoseno = 0; hoseno < MAXHOSE; hoseno++) {
 107                 u_int32_t value =
 108                     TLSB_GET_NODEREG(sc->sc_node, KFT_IDPNSEX(hoseno));
 109                 if (value & 0x0E000000) {
 110                         printf("%s: Hose %d IDPNSE has %x\n", self->dv_xname,
 111                             hoseno, value);
 112                         continue;
 113                 }
 114                 if ((value & 0x1) != 0x0) {
 115                         printf("%s: Hose %d has a Bad Cable (0x%x)\n",
 116                             self->dv_xname, hoseno, value);
 117                         continue;
 118                 }
 119                 if ((value & 0x6) != 0x6) {
 120                         if (value)
 121                                 printf("%s: Hose %d is missing PWROK (0x%x)\n",
 122                                     self->dv_xname, hoseno, value);
 123                         continue;
 124                 }
 125                 ka.ka_name = "dwlpx";
 126                 ka.ka_node = sc->sc_node;
 127                 ka.ka_dtype = sc->sc_dtype;
 128                 ka.ka_hosenum = hoseno;
 129                 config_found(self, &ka, kftprint);
 130         }
 131 }