sys/arch/arc/jazz/pckbc_jazzio.c

   1 /* $NetBSD: pckbc_jazzio.c,v 1.17 2008/01/05 00:31:53 ad Exp $ */
   2 /* NetBSD: pckbc_isa.c,v 1.2 2000/03/23 07:01:35 thorpej Exp  */
   3
   4 /*
   5  * Copyright (c) 1998
   6  *      Matthias Drochner.  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, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  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 #include <sys/cdefs.h>
  30 __KERNEL_RCSID(0, "$NetBSD: pckbc_jazzio.c,v 1.17 2008/01/05 00:31:53 ad Exp $");
  31
  32 #include <sys/param.h>
  33 #include <sys/systm.h>
  34 #include <sys/kernel.h>
  35 #include <sys/proc.h>
  36 #include <sys/device.h>
  37 #include <sys/malloc.h>
  38 #include <sys/errno.h>
  39 #include <sys/queue.h>
  40 #include <sys/bus.h>
  41
  42 #include <machine/autoconf.h>
  43 #include <arc/jazz/pica.h>
  44 #include <arc/jazz/jazziovar.h>
  45
  46 #include <dev/ic/i8042reg.h>
  47 #include <dev/ic/pckbcvar.h>
  48 #include <arc/jazz/pckbc_jazzioreg.h>
  49
  50 #define PMS_INTR 7      /* XXX - should be obtained from firmware */
  51 #define PICA_KBCMDP     (PICA_SYS_KBD + JAZZIO_KBCMDP)
  52
  53 int     pckbc_jazzio_match(device_t, cfdata_t, void *);
  54 void    pckbc_jazzio_attach(device_t, device_t, void *);
  55 void    pckbc_jazzio_intr_establish(struct pckbc_softc *, pckbc_slot_t);
  56
  57 struct pckbc_jazzio_softc {
  58         struct pckbc_softc sc_pckbc;
  59
  60         int sc_intr[PCKBC_NSLOTS];
  61 };
  62
  63 CFATTACH_DECL_NEW(pckbc_jazzio, sizeof(struct pckbc_jazzio_softc),
  64     pckbc_jazzio_match, pckbc_jazzio_attach, NULL, NULL);
  65
  66 int
  67 pckbc_jazzio_match(device_t parent, cfdata_t match, void *aux)
  68 {
  69         struct jazzio_attach_args *ja = aux;
  70         bus_space_tag_t iot = ja->ja_bust;
  71         bus_space_handle_t ioh_d, ioh_c;
  72         bus_addr_t addr = ja->ja_addr;
  73         int res, ok = 1;
  74
  75         if (strcmp(ja->ja_name, "I8742") != 0)
  76                 return 0;
  77
  78         if (pckbc_is_console(iot, addr) == 0) {
  79                 struct pckbc_internal t;
  80
  81                 if (bus_space_map(iot, addr + KBDATAP, 1, 0, &ioh_d))
  82                         return 0;
  83                 if (bus_space_map(iot, PICA_KBCMDP, 1, 0, &ioh_c)) {
  84                         bus_space_unmap(iot, ioh_d, 1);
  85                         return 0;
  86                 }
  87
  88                 memset(&t, 0, sizeof(t));
  89                 t.t_iot = iot;
  90                 t.t_ioh_d = ioh_d;
  91                 t.t_ioh_c = ioh_c;
  92
  93                 /* flush KBC */
  94                 (void)pckbc_poll_data1(&t, PCKBC_KBD_SLOT);
  95
  96                 /* KBC selftest */
  97                 if (pckbc_send_cmd(iot, ioh_c, KBC_SELFTEST) == 0) {
  98                         ok = 0;
  99                         goto out;
 100                 }
 101                 res = pckbc_poll_data1(&t, PCKBC_KBD_SLOT);
 102                 if (res != 0x55) {
 103                         printf("kbc selftest: %x\n", res);
 104                         ok = 0;
 105                 }
 106  out:
 107                 bus_space_unmap(iot, ioh_d, 1);
 108                 bus_space_unmap(iot, ioh_c, 1);
 109         }
 110
 111         return ok;
 112 }
 113
 114 void
 115 pckbc_jazzio_attach(device_t parent, device_t self, void *aux)
 116 {
 117         struct jazzio_attach_args *ja = aux;
 118         struct pckbc_jazzio_softc *jsc = device_private(self);
 119         struct pckbc_softc *sc = &jsc->sc_pckbc;
 120         struct pckbc_internal *t;
 121         bus_space_tag_t iot = ja->ja_bust;
 122         bus_space_handle_t ioh_d, ioh_c;
 123         bus_addr_t addr = ja->ja_addr;
 124
 125         sc->sc_dv = self;
 126         sc->intr_establish = pckbc_jazzio_intr_establish;
 127
 128         /*
 129          * To establish interrupt handler
 130          *
 131          * XXX handcrafting "aux" slot...
 132          */
 133         jsc->sc_intr[PCKBC_KBD_SLOT] = ja->ja_intr;
 134         jsc->sc_intr[PCKBC_AUX_SLOT] = PMS_INTR;                /* XXX */
 135
 136         if (pckbc_is_console(iot, addr)) {
 137                 t = &pckbc_consdata;
 138                 ioh_d = t->t_ioh_d;
 139                 ioh_c = t->t_ioh_c;
 140                 pckbc_console_attached = 1;
 141                 /* t->t_cmdbyte was initialized by cnattach */
 142         } else {
 143                 if (bus_space_map(iot, addr + KBDATAP, 1, 0, &ioh_d) ||
 144                     bus_space_map(iot, PICA_KBCMDP, 1, 0, &ioh_c))
 145                         panic("pckbc_attach: couldn't map");
 146
 147                 t = malloc(sizeof(struct pckbc_internal), M_DEVBUF,
 148                     M_WAITOK | M_ZERO);
 149                 t->t_iot = iot;
 150                 t->t_ioh_d = ioh_d;
 151                 t->t_ioh_c = ioh_c;
 152                 t->t_addr = addr;
 153                 t->t_cmdbyte = KC8_CPU; /* Enable ports */
 154                 callout_init(&t->t_cleanup, 0);
 155         }
 156
 157         t->t_sc = sc;
 158         sc->id = t;
 159
 160         aprint_normal("\n");
 161
 162         /* Finish off the attach. */
 163         pckbc_attach(sc);
 164 }
 165
 166 void
 167 pckbc_jazzio_intr_establish(struct pckbc_softc *sc, pckbc_slot_t slot)
 168 {
 169         struct pckbc_jazzio_softc *jsc = (void *) sc;
 170
 171         jazzio_intr_establish(jsc->sc_intr[slot], pckbcintr, sc);
 172 }