sys/arch/evbppc/walnut/dev/pckbc_pbus.c

   1 /*      $NetBSD: pckbc_pbus.c,v 1.3 2005/12/11 12:17:13 christos Exp $  */
   2
   3 /*
   4  * Copyright 2001 Wasabi Systems, Inc.
   5  * All rights reserved.
   6  *
   7  * Written by Simon Burge and Eduardo Horvath for Wasabi Systems, Inc.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, 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. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed for the NetBSD Project by
  20  *      Wasabi Systems, Inc.
  21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
  22  *    or promote products derived from this software without specific prior
  23  *    written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
  29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  35  * POSSIBILITY OF SUCH DAMAGE.
  36  */
  37
  38 #include <sys/cdefs.h>
  39 __KERNEL_RCSID(0, "$NetBSD: pckbc_pbus.c,v 1.3 2005/12/11 12:17:13 christos Exp $");
  40
  41 #include <sys/param.h>
  42 #include <sys/systm.h>
  43 #include <sys/kernel.h>
  44 #include <sys/device.h>
  45 #include <sys/malloc.h>
  46
  47 #include <machine/intr.h>
  48 #include <machine/walnut.h>
  49
  50 #include <arch/walnut/dev/pbusvar.h>
  51 #include <powerpc/ibm4xx/dev/plbvar.h>
  52
  53 #include <dev/ic/i8042reg.h>
  54 #include <dev/ic/pckbcvar.h>
  55
  56 struct pckbc_pbus_softc {
  57         struct pckbc_softc sc_pckbc;
  58
  59         // XXX void *sc_ih[PCKBC_NSLOTS];
  60         int sc_irq[PCKBC_NSLOTS];
  61
  62 };
  63
  64
  65 static int      pckbc_pbus_probe(device_t, cfdata_t, void *);
  66 static void     pckbc_pbus_attach(device_t, device_t, void *);
  67 static void     pckbc_pbus_intr_establish(struct pckbc_softc *, pckbc_slot_t);
  68
  69 CFATTACH_DECL_NEW(pckbc_pbus, sizeof(struct pckbc_pbus_softc),
  70     pckbc_pbus_probe, pckbc_pbus_attach, NULL, NULL);
  71
  72 int pckbcfound = 0;
  73
  74 int
  75 pckbc_pbus_probe(device_t parent, cfdata_t cf, void *aux)
  76 {
  77         struct pbus_attach_args *paa = aux;
  78
  79         /* match only pckbc devices */
  80         if (strcmp(paa->pb_name, cf->cf_name) != 0)
  81                 return 0;
  82
  83         return (pckbcfound < 1);
  84 }
  85
  86 struct pckbc_softc *pckbc0; /* XXX */
  87
  88 void
  89 pckbc_pbus_attach(device_t parent, device_t self, void *aux)
  90 {
  91         struct pckbc_pbus_softc *msc = device_private(self);
  92         struct pckbc_softc *sc = &msc->sc_pckbc;
  93         struct pbus_attach_args *paa = aux;
  94         struct pckbc_internal *t;
  95         bus_space_handle_t ioh_d, ioh_c;
  96         bus_space_tag_t iot = paa->pb_bt;
  97         u_long addr = paa->pb_addr;
  98
  99         sc->sc_dv = self;
 100         /*
 101          * Set up IRQs
 102          */
 103         msc->sc_irq[PCKBC_KBD_SLOT] = paa->pb_irq;
 104         msc->sc_irq[PCKBC_AUX_SLOT] = paa->pb_irq + 1;  /* XXX */
 105
 106         sc->intr_establish = pckbc_pbus_intr_establish;
 107
 108         if (pckbc_is_console(iot, addr)) {
 109                 t = &pckbc_consdata;
 110                 pckbc_console_attached = 1;
 111                 /* t->t_cmdbyte was initialized by cnattach */
 112         } else {
 113                 if (bus_space_map(iot, addr + KEY_MOUSE_DATA, 1, 0, &ioh_d) ||
 114                     bus_space_map(iot, addr + KEY_MOUSE_CMD, 1, 0, &ioh_c))
 115                         panic("pckbc_attach: couldn't map");
 116
 117                 t = malloc(sizeof(struct pckbc_internal), M_DEVBUF, M_WAITOK);
 118                 memset(t, 0, sizeof(struct pckbc_internal));
 119                 t->t_iot = iot;
 120                 t->t_ioh_d = ioh_d;
 121                 t->t_ioh_c = ioh_c;
 122                 t->t_addr = addr;
 123                 t->t_cmdbyte = KC8_CPU; /* Enable ports */
 124         }
 125
 126         t->t_sc = sc;
 127         sc->id = t;
 128
 129         aprint_normal("\n");
 130
 131         /* Finish off the attach. */
 132         pckbc_attach(sc);
 133
 134         pckbcfound++;
 135
 136         return;
 137 }
 138
 139 static void
 140 pckbc_pbus_intr_establish(struct pckbc_softc *sc, pckbc_slot_t slot)
 141 {
 142         struct pckbc_pbus_softc *msc = (void *)sc;
 143         int irq = msc->sc_irq[slot];
 144
 145         if (slot > PCKBC_NSLOTS) {
 146                 aprint_error("pckbc_pbus_intr_establish: attempt to establish "
 147                     "interrupt at slot %d\n", slot);
 148                 return;
 149         }
 150
 151         intr_establish(irq, IST_LEVEL, IPL_SERIAL, pckbcintr, sc);
 152         aprint_normal_dev(sc->sc_dv, "%s slot interrupting at irq %d\n",
 153             pckbc_slot_names[slot], irq);
 154 }