sys/arch/acorn26/iobus/upc_iobus.c

   1 /* $NetBSD: upc_iobus.c,v 1.8 2005/12/11 12:16:04 christos Exp $ */
   2 /*-
   3  * Copyright (c) 2000 Ben Harris
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. The name of the author may not be used to endorse or promote products
  15  *    derived from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28 /*
  29  * upc_iobus.c - attachment of the 82C7xx to the Archimedes I/O bus
  30  */
  31
  32 #include <sys/cdefs.h>
  33 __KERNEL_RCSID(0, "$NetBSD: upc_iobus.c,v 1.8 2005/12/11 12:16:04 christos Exp $");
  34
  35 #include <sys/param.h>
  36 #include <sys/device.h>
  37
  38 #include <arch/acorn26/iobus/iobusvar.h>
  39
  40 #include <arch/acorn26/iobus/iocreg.h>
  41 #include <machine/irq.h>
  42
  43 #include <dev/ic/upcreg.h>
  44 #include <dev/ic/upcvar.h>
  45
  46 #include "ioeb.h"
  47
  48 #if NIOEB > 0
  49 #include <arch/acorn26/ioc/ioebvar.h>
  50 #endif
  51
  52 static int upc_iobus_match(device_t , cfdata_t , void *);
  53 static void upc_iobus_attach(device_t , device_t , void *);
  54
  55 struct upc_iobus_softc {
  56         struct upc_softc        sc_upc;
  57         struct evcnt            sc_intrcnt4;
  58         struct evcnt            sc_intrcntw;
  59         struct evcnt            sc_intrcntf;
  60         struct evcnt            sc_intrcntp;
  61 };
  62
  63 CFATTACH_DECL(upc_iobus, sizeof(struct upc_iobus_softc),
  64     upc_iobus_match, upc_iobus_attach, NULL, NULL);
  65
  66 static device_t the_upc_iobus;
  67
  68 static int
  69 upc_iobus_match(device_t parent, cfdata_t cf, void *aux)
  70 {
  71
  72         /*
  73          * As is traditional, probing for iobus devices is impossible
  74          * (The machine hangs if there's nothing there).  In this case,
  75          * assume that if there's an IOEB, we've got a UPC too.
  76          */
  77 #if NIOEB > 0
  78         if (the_ioeb != NULL && the_upc_iobus == NULL)
  79                 return 1;
  80 #endif
  81         return 0;
  82 }
  83
  84 static void
  85 upc_iobus_attach(device_t parent, device_t self, void *aux)
  86 {
  87         struct iobus_attach_args *ioa = aux;
  88         struct upc_iobus_softc *sc = device_private(self);
  89         struct upc_softc *upc = &sc->sc_upc;
  90
  91         upc->sc_iot = ioa->ioa_tag;
  92         bus_space_map(ioa->ioa_tag, ioa->ioa_base, UPC_BUS_SIZE, 0,
  93                       &upc->sc_ioh);
  94         upc_attach(upc);
  95
  96         if (upc->sc_irq4.uih_func != NULL) {
  97                 evcnt_attach_dynamic(&sc->sc_intrcnt4, EVCNT_TYPE_INTR, NULL,
  98                     device_xname(self), "irq4");
  99                 irq_establish(IOC_IRQ_IL2, upc->sc_irq4.uih_level,
 100                     upc->sc_irq4.uih_func, upc->sc_irq4.uih_arg,
 101                     &sc->sc_intrcnt4);
 102         }
 103         if (upc->sc_wintr.uih_func != NULL) {
 104                 evcnt_attach_dynamic(&sc->sc_intrcntw, EVCNT_TYPE_INTR, NULL,
 105                     device_xname(self), "wdc intr");
 106                 irq_establish(IOC_IRQ_IL3, upc->sc_wintr.uih_level,
 107                     upc->sc_wintr.uih_func, upc->sc_wintr.uih_arg,
 108                     &sc->sc_intrcntw);
 109         }
 110         if (upc->sc_fintr.uih_func != NULL) {
 111                 evcnt_attach_dynamic(&sc->sc_intrcntf, EVCNT_TYPE_INTR, NULL,
 112                     device_xname(self), "fdc intr");
 113                 irq_establish(IOC_IRQ_IL4, upc->sc_fintr.uih_level,
 114                     upc->sc_fintr.uih_func, upc->sc_fintr.uih_arg,
 115                     &sc->sc_intrcntf);
 116         }
 117         if (upc->sc_pintr.uih_func != NULL) {
 118                 evcnt_attach_dynamic(&sc->sc_intrcntp, EVCNT_TYPE_INTR, NULL,
 119                     device_xname(self), "lpt intr");
 120                 irq_establish(IOC_IRQ_IL6, upc->sc_pintr.uih_level,
 121                     upc->sc_pintr.uih_func, upc->sc_pintr.uih_arg,
 122                     &sc->sc_intrcntp);
 123         }
 124         /* IRQ3 on the 82C71x is not connected */
 125 }