Home | History | Annotate | Line # | Download | only in dev
kbc.c revision 1.8 
      1 /*	$NetBSD: kbc.c,v 1.8 2004/09/04 11:28:32 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  * 3. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission.
     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
     26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: kbc.c,v 1.8 2004/09/04 11:28:32 tsutsui Exp $");
     31 
     32 #include <sys/param.h>
     33 #include <sys/systm.h>
     34 #include <sys/conf.h>
     35 #include <sys/device.h>
     36 #include <sys/tty.h>
     37 
     38 #include <machine/bus.h>
     39 #include <machine/cpu.h>
     40 
     41 #include <dev/cons.h>
     42 
     43 #include <news68k/dev/hbvar.h>
     44 #include <news68k/dev/kbcvar.h>
     45 
     46 #include "ioconf.h"
     47 
     48 #define KBC_SIZE 0x10 /* XXX */
     49 
     50 /* Definition of the driver for autoconfig. */
     51 static int  kbc_match(struct device *, struct cfdata *, void *);
     52 static void kbc_attach(struct device *, struct device *, void *);
     53 static int  kbc_print(void *, const char *name);
     54 
     55 CFATTACH_DECL(kbc, sizeof(struct device),
     56     kbc_match, kbc_attach, NULL, NULL);
     57 
     58 static int kbc_match(parent, cf, aux)
     59 	struct device *parent;
     60 	struct cfdata *cf;
     61 	void *aux;
     62 {
     63 	struct hb_attach_args *ha = aux;
     64 	u_int addr;
     65 
     66 	if (strcmp(ha->ha_name, "kbc"))
     67 		return 0;
     68 
     69 	/* XXX no default address */
     70 	if (ha->ha_address == (u_int)-1)
     71 		return 0;
     72 
     73 	addr = IIOV(ha->ha_address); /* XXX */
     74 
     75 	if (badaddr((void *)addr, 1))
     76 		return 0;
     77 
     78 	return 1;
     79 }
     80 
     81 static void
     82 kbc_attach(parent, self, aux)
     83 	struct device *parent;
     84 	struct device *self;
     85 	void *aux;
     86 {
     87 	struct hb_attach_args *ha = aux;
     88 	struct kbc_attach_args ka;
     89 	bus_space_tag_t bt = ha->ha_bust;
     90 	bus_space_handle_t bh;
     91 
     92 	if (bus_space_map(bt, ha->ha_address, KBC_SIZE, 0, &bh) != 0) {
     93 		printf("can't map device space\n");
     94 		return;
     95 	}
     96 
     97 	printf("\n");
     98 
     99 	ka.ka_bt = bt;
    100 	ka.ka_bh = bh;
    101 	ka.ka_ipl = ha->ha_ipl;
    102 
    103 	if (ka.ka_ipl == -1)
    104 		ka.ka_ipl = KBC_PRI;
    105 
    106 	ka.ka_name = "kb";
    107 	config_found(self, (void *)&ka, kbc_print);
    108 
    109 	ka.ka_name = "ms";
    110 	config_found(self, (void *)&ka, kbc_print);
    111 }
    112 
    113 static int
    114 kbc_print(aux, name)
    115 	void *aux;
    116 	const char *name;
    117 {
    118 
    119 	if (name != NULL)
    120 		aprint_normal("%s: ", name);
    121 
    122 	return UNCONF;
    123 }
    124