sys/arch/sgimips/hpc/pckbc_hpc.c

   1 /* $NetBSD: pckbc_hpc.c,v 1.8 2008/01/05 00:31:56 ad Exp $       */
   2
   3 /*
   4  * Copyright (c) 2003 Christopher SEKIYA
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *          This product includes software developed for the
  18  *          NetBSD Project.  See http://www.NetBSD.org/ for
  19  *          information about NetBSD.
  20  * 4. The name of the author may not be used to endorse or promote products
  21  *    derived from this software without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  32  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 __KERNEL_RCSID(0, "$NetBSD: pckbc_hpc.c,v 1.8 2008/01/05 00:31:56 ad Exp $");
  37
  38 #include <sys/param.h>
  39 #include <sys/systm.h>
  40 #include <sys/kernel.h>
  41 #include <sys/proc.h>
  42 #include <sys/device.h>
  43 #include <sys/malloc.h>
  44 #include <sys/errno.h>
  45 #include <sys/queue.h>
  46 #include <sys/bus.h>
  47
  48 #include <machine/autoconf.h>
  49 #include <machine/machtype.h>
  50
  51 #include <dev/ic/i8042reg.h>
  52 #include <dev/ic/pckbcvar.h>
  53
  54 #include <sgimips/hpc/hpcreg.h>
  55 #include <sgimips/hpc/hpcvar.h>
  56
  57 struct pckbc_hpc_softc {
  58         struct pckbc_softc sc_pckbc;
  59
  60         int     sc_irq;
  61         int     sc_hasintr;
  62 };
  63
  64 static int      pckbc_hpc_match(device_t, cfdata_t, void *);
  65 static void     pckbc_hpc_attach(device_t, device_t, void *);
  66 static void     pckbc_hpc_intr_establish(struct pckbc_softc *, pckbc_slot_t);
  67
  68 CFATTACH_DECL_NEW(pckbc_hpc, sizeof(struct pckbc_hpc_softc),
  69               pckbc_hpc_match, pckbc_hpc_attach, NULL, NULL);
  70
  71 static int
  72 pckbc_hpc_match(device_t parent, cfdata_t cf, void *aux)
  73 {
  74         struct hpc_attach_args *ha = aux;
  75
  76         if (strcmp(ha->ha_name, cf->cf_name) == 0)
  77                 return (1);
  78
  79         return (0);
  80 }
  81
  82 static void
  83 pckbc_hpc_attach(device_t parent, device_t self, void *aux)
  84 {
  85         struct pckbc_hpc_softc *msc = device_private(self);
  86         struct pckbc_softc *sc = &msc->sc_pckbc;
  87         struct hpc_attach_args *haa = aux;
  88         struct pckbc_internal *t;
  89         bus_space_handle_t ioh_d, ioh_c;
  90
  91         sc->sc_dv = self;
  92
  93         msc->sc_irq = haa->ha_irq;
  94
  95         msc->sc_hasintr = 0;
  96
  97         sc->intr_establish = pckbc_hpc_intr_establish;
  98
  99         /* XXX Ugly hack & kludge XXX */
 100         if (pckbc_is_console(haa->ha_st, MIPS_KSEG1_TO_PHYS(haa->ha_sh +
 101             haa->ha_devoff))) {
 102                 t = &pckbc_consdata;
 103                 pckbc_console_attached = 1;
 104         } else {
 105                 /* XXX should be bus_space_map() */
 106                 if (bus_space_subregion(haa->ha_st, haa->ha_sh,
 107                                         haa->ha_devoff + KBDATAP, 1, &ioh_d) ||
 108                     bus_space_subregion(haa->ha_st, haa->ha_sh,
 109                                         haa->ha_devoff + KBCMDP, 1, &ioh_c))
 110                         panic("pckbc_hpc_attach: couldn't map");
 111
 112                 t = malloc(sizeof(struct pckbc_internal), M_DEVBUF,
 113                     M_WAITOK | M_ZERO);
 114                 t->t_iot = haa->ha_st;
 115                 t->t_ioh_d = ioh_d;
 116                 t->t_ioh_c = ioh_c;
 117                 t->t_addr = haa->ha_sh;
 118                 t->t_cmdbyte = KC8_CPU; /* Enable ports */
 119                 callout_init(&t->t_cleanup, 0);
 120         }
 121
 122         t->t_sc = sc;
 123         sc->id = t;
 124
 125         aprint_normal("\n");
 126
 127         /* Finish off the attach. */
 128         pckbc_attach(sc);
 129 }
 130
 131 static void
 132 pckbc_hpc_intr_establish(struct pckbc_softc * sc, pckbc_slot_t slot)
 133 {
 134         struct pckbc_hpc_softc *msc = (void *) sc;
 135
 136         if (msc->sc_hasintr)
 137                 return;
 138
 139         if (cpu_intr_establish(msc->sc_irq, IPL_TTY, pckbcintr, sc) == NULL) {
 140                 aprint_error_dev(sc->sc_dv,
 141                     "unable to establish interrupt for %s slot\n",
 142                     pckbc_slot_names[slot]);
 143         } else {
 144                 msc->sc_hasintr = 1;
 145         }
 146 }