sys/arch/news68k/dev/kbc.c

   1 /*      $NetBSD: kbc.c,v 1.11 2008/03/28 18:19:56 tsutsui Exp $ */
   2
   3 /*-
   4  * Copyright (C) 2001 Izumi Tsutsui.  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  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #include <sys/cdefs.h>
  28 __KERNEL_RCSID(0, "$NetBSD: kbc.c,v 1.11 2008/03/28 18:19:56 tsutsui Exp $");
  29
  30 #include <sys/param.h>
  31 #include <sys/systm.h>
  32 #include <sys/conf.h>
  33 #include <sys/device.h>
  34 #include <sys/tty.h>
  35
  36 #include <machine/bus.h>
  37 #include <machine/cpu.h>
  38
  39 #include <dev/cons.h>
  40
  41 #include <news68k/dev/hbvar.h>
  42 #include <news68k/dev/kbcvar.h>
  43
  44 #include "ioconf.h"
  45
  46 #define KBC_SIZE 0x10 /* XXX */
  47
  48 /* Definition of the driver for autoconfig. */
  49 static int  kbc_match(device_t, cfdata_t, void *);
  50 static void kbc_attach(device_t, device_t, void *);
  51 static int  kbc_print(void *, const char *name);
  52
  53 CFATTACH_DECL_NEW(kbc, 0,
  54     kbc_match, kbc_attach, NULL, NULL);
  55
  56 static int kbc_match(device_t parent, cfdata_t cf, void *aux)
  57 {
  58         struct hb_attach_args *ha = aux;
  59         u_int addr;
  60
  61         if (strcmp(ha->ha_name, "kbc"))
  62                 return 0;
  63
  64         /* XXX no default address */
  65         if (ha->ha_address == (u_int)-1)
  66                 return 0;
  67
  68         addr = IIOV(ha->ha_address); /* XXX */
  69
  70         if (badaddr((void *)addr, 1))
  71                 return 0;
  72
  73         return 1;
  74 }
  75
  76 static void
  77 kbc_attach(device_t parent, device_t self, void *aux)
  78 {
  79         struct hb_attach_args *ha = aux;
  80         struct kbc_attach_args ka;
  81         bus_space_tag_t bt = ha->ha_bust;
  82         bus_space_handle_t bh;
  83
  84         if (bus_space_map(bt, ha->ha_address, KBC_SIZE, 0, &bh) != 0) {
  85                 aprint_error(": can't map device space\n");
  86                 return;
  87         }
  88
  89         aprint_normal("\n");
  90
  91         ka.ka_bt = bt;
  92         ka.ka_bh = bh;
  93         ka.ka_ipl = ha->ha_ipl;
  94
  95         if (ka.ka_ipl == -1)
  96                 ka.ka_ipl = KBC_PRI;
  97
  98         ka.ka_name = "kb";
  99         config_found(self, (void *)&ka, kbc_print);
 100
 101         ka.ka_name = "ms";
 102         config_found(self, (void *)&ka, kbc_print);
 103 }
 104
 105 static int
 106 kbc_print(void *aux, const char *name)
 107 {
 108
 109         if (name != NULL)
 110                 aprint_normal("%s: ", name);
 111
 112         return UNCONF;
 113 }