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dnkbd.c revision 1.1
      1 /*	$NetBSD: dnkbd.c,v 1.1 1997/04/14 19:03:13 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1997 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Michael Smith and Jason R. Thorpe.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
     30  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * Apollo Domain keyboard routines for the standalone ITE.
     41  */
     42 
     43 #if defined(ITECONSOLE) && defined(DOMAIN_KEYBOARD)
     44 
     45 #include <sys/param.h>
     46 
     47 #include <hp300/dev/dcareg.h>		/* for the register bit defintions */
     48 #include <hp300/dev/apcireg.h>		/* for the apci registers */
     49 
     50 #include <hp300/stand/common/samachdep.h>
     51 #include <hp300/stand/common/kbdvar.h>
     52 
     53 #ifndef SMALL
     54 
     55 /*
     56  * The Apollo keyboard is used in `cooked' mode as configured by the
     57  * firmware; only one table is required.
     58  *
     59  * Note that if an entry in this table is set to 0, the key is passed
     60  * through untranslated.  If the entry is 0xff, the key is ignored.
     61  */
     62 u_char dnkbd_keymap[] = {
     63 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 07 */
     64 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0f */
     65 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 17 */
     66 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 1f */
     67 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 27 */
     68 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 2f */
     69 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 37 */
     70 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 3f */
     71 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 47 */
     72 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 4f */
     73 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 57 */
     74 	0x00, 0x00, 0x00, '{',  0x00, '}',  0x00, 0x00, /* 5f */
     75 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 67 */
     76 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 6f */
     77 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 77 */
     78 	0x00, 0x00, 0x00, '[',  0x00, ']',  0x00, 0x00, /* 7f */
     79 	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 87 */
     80 	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 8f */
     81 	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 97 */
     82 	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 9f */
     83 	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* a7 */
     84 	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* af */
     85 	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* b7 */
     86 	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* bf */
     87 	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* c7 */
     88 	'\\', '|',  0x09, 0x0a, '/',  0xff, 0xff, 0xff, /* cf */
     89 	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* d7 */
     90 	0xff, 0xff, 0xff, 0xff, '?',  0xff, 0x08, 0xff, /* df */
     91 	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* e7 */
     92 	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* ef */
     93 	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* f7 */
     94 	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* ff */
     95 };
     96 
     97 int	dnkbd_ignore;		/* for ignoring mouse packets */
     98 
     99 int
    100 dnkbd_getc()
    101 {
    102 	struct apciregs *apci = (struct apciregs *)0x41c000;	/* XXX */
    103 	int c;
    104 
    105 	/* default to `no key' */
    106 	c = 0;
    107 
    108 	/* Is data in the UART? */
    109 	if (apci->ap_lsr & LSR_RXRDY) {
    110 		/* Get the character. */
    111 		c = apci->ap_data;
    112 
    113 		/* Ignoring mouse? */
    114 		if (dnkbd_ignore) {
    115 			dnkbd_ignore--;
    116 			return (0);
    117 		}
    118 
    119 		/* Is this the start of a mouse packet? */
    120 		if (c == 0xdf) {
    121 			dnkbd_ignore = 3;	/* 3 bytes of junk */
    122 			return (0);
    123 		}
    124 
    125 		/* It's a keyboard event. */
    126 		switch (dnkbd_keymap[c]) {
    127 		case 0x00:
    128 			/* passthrough */
    129 			break;
    130 
    131 		case 0xff:
    132 			/* ignore */
    133 			c = 0;
    134 			break;
    135 
    136 		default:
    137 			c = dnkbd_keymap[c];
    138 			break;
    139 		}
    140 	}
    141 
    142 	return (c);
    143 }
    144 #endif /* SMALL */
    145 
    146 void
    147 dnkbd_nmi()
    148 {
    149 
    150 	/*
    151 	 * XXX Should we do anything?  Can we even generate one?
    152 	 */
    153 }
    154 
    155 int
    156 dnkbd_init()
    157 {
    158 
    159 	/*
    160 	 * Look for a Frodo utility chip.  If we find one, assume there
    161 	 * is a Domain keyboard attached.
    162 	 *
    163 	 * XXX This could be improved.
    164 	 */
    165 	if (badaddr(0x41c000))
    166 		return (0);
    167 
    168 	/*
    169 	 * XXX Any other initialization?  This appears to work ok.
    170 	 */
    171 	return (1);
    172 }
    173 #endif /* ITECONSOLE && DOMAIN_KEYBOARD */
    174