sys/dev/ofisa/pckbc_ofisa.c

   1 /* $NetBSD: pckbc_ofisa.c,v 1.14 2008/01/04 21:17:59 ad Exp $ */
   2
   3 /*
   4  * Copyright (c) 1998
   5  *      Matthias Drochner.  All rights reserved.
   6  * Copyright (c) 2001
   7  *      Matt Thomas.  All rights reserved.
   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  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <sys/cdefs.h>
  31 __KERNEL_RCSID(0, "$NetBSD: pckbc_ofisa.c,v 1.14 2008/01/04 21:17:59 ad Exp $");
  32
  33 #include <sys/param.h>
  34 #include <sys/systm.h>
  35 #include <sys/kernel.h>
  36 #include <sys/proc.h>
  37 #include <sys/device.h>
  38 #include <sys/malloc.h>
  39 #include <sys/errno.h>
  40 #include <sys/queue.h>
  41 #include <sys/bus.h>
  42
  43 #include <dev/isa/isareg.h>
  44 #include <dev/isa/isavar.h>
  45
  46 #include <dev/ofw/openfirm.h>
  47 #include <dev/ofisa/ofisavar.h>
  48
  49 #include <dev/ic/i8042reg.h>
  50 #include <dev/ic/pckbcvar.h>
  51
  52 static int pckbc_ofisa_match (device_t, cfdata_t, void *);
  53 static void pckbc_ofisa_attach (device_t, device_t, void *);
  54
  55 struct pckbc_ofisa_softc {
  56         struct pckbc_softc sc_pckbc;
  57
  58         isa_chipset_tag_t sc_ic;
  59         struct ofisa_intr_desc sc_intr[PCKBC_NSLOTS];
  60 };
  61
  62 CFATTACH_DECL_NEW(pckbc_ofisa, sizeof(struct pckbc_ofisa_softc),
  63     pckbc_ofisa_match, pckbc_ofisa_attach, NULL, NULL);
  64
  65 static void pckbc_ofisa_intr_establish (struct pckbc_softc *, pckbc_slot_t);
  66
  67 static const char *const kb_compatible_strings[] = { "pnpPNP,303", NULL };
  68 static const char *const ms_compatible_strings[] = { "pnpPNP,f03", NULL };
  69
  70 static int
  71 pckbc_ofisa_match(device_t parent, cfdata_t match, void *aux)
  72 {
  73         struct ofisa_attach_args *aa = aux;
  74         static const char *const compatible_strings[] = { "INTC,80c42", NULL };
  75         int rv = 0;
  76
  77         if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1)
  78                 rv = 5;
  79
  80         return (rv);
  81 }
  82
  83 static void
  84 pckbc_ofisa_attach(device_t parent, device_t self, void *aux)
  85 {
  86         struct pckbc_ofisa_softc *osc = device_private(self);
  87         struct pckbc_softc *sc = &osc->sc_pckbc;
  88         struct ofisa_attach_args *aa = aux;
  89         struct pckbc_internal *t;
  90         bus_space_tag_t iot;
  91         bus_space_handle_t ioh_d, ioh_c;
  92         struct ofisa_reg_desc regs[2];
  93         int phandle;
  94         int n;
  95
  96         sc->sc_dv = self;
  97         osc->sc_ic = aa->ic;
  98         iot = aa->iot;
  99
 100         phandle = OF_child(aa->oba.oba_phandle);
 101         while (phandle != 0) {
 102                 if (of_compatible(phandle, kb_compatible_strings) != -1) {
 103                         ofisa_intr_get(phandle, &osc->sc_intr[PCKBC_KBD_SLOT], 1);
 104                 } else if (of_compatible(phandle, ms_compatible_strings) != -1) {
 105                         ofisa_intr_get(phandle, &osc->sc_intr[PCKBC_AUX_SLOT], 1);
 106                 }
 107                 phandle = OF_peer(phandle);
 108         }
 109
 110         sc->intr_establish = pckbc_ofisa_intr_establish;
 111
 112         if (pckbc_is_console(iot, IO_KBD)) {
 113                 t = &pckbc_consdata;
 114                 ioh_d = t->t_ioh_d;
 115                 ioh_c = t->t_ioh_c;
 116                 pckbc_console_attached = 1;
 117                 /* t->t_cmdbyte was initialized by cnattach */
 118         } else {
 119                 n = ofisa_reg_get(aa->oba.oba_phandle, regs, 2);
 120                 if (n != 2 || regs[0].type != OFISA_REG_TYPE_IO || regs[1].type != OFISA_REG_TYPE_IO
 121                     || bus_space_map(iot, regs[0].addr, regs[0].len, 0, &ioh_d)
 122                     || bus_space_map(iot, regs[1].addr, regs[1].len, 0, &ioh_c))
 123                         panic("pckbc_attach: couldn't map");
 124
 125                 t = malloc(sizeof(struct pckbc_internal), M_DEVBUF,
 126                     M_WAITOK|M_ZERO);
 127                 t->t_iot = iot;
 128                 t->t_ioh_d = ioh_d;
 129                 t->t_ioh_c = ioh_c;
 130                 t->t_addr = regs[0].addr;
 131                 t->t_cmdbyte = KC8_CPU; /* Enable ports */
 132                 callout_init(&t->t_cleanup, 0);
 133         }
 134
 135         t->t_sc = sc;
 136         sc->id = t;
 137
 138         aprint_normal("\n");
 139
 140         /* Finish off the attach. */
 141         pckbc_attach(sc);
 142 }
 143
 144 static void
 145 pckbc_ofisa_intr_establish(struct pckbc_softc *sc, pckbc_slot_t slot)
 146 {
 147         struct pckbc_ofisa_softc *osc = (void *) sc;
 148         void *rv;
 149
 150         rv = isa_intr_establish(osc->sc_ic, osc->sc_intr[slot].irq, osc->sc_intr[slot].share,
 151             IPL_TTY, pckbcintr, sc);
 152         if (rv == NULL) {
 153                 aprint_error_dev(sc->sc_dv,
 154                     "unable to establish interrupt for %s slot\n",
 155                     pckbc_slot_names[slot]);
 156         } else {
 157                 aprint_normal_dev(sc->sc_dv, "using irq %d for %s slot\n",
 158                     osc->sc_intr[slot].irq, pckbc_slot_names[slot]);
 159         }
 160 }