lk201_ws.c revision 1.1 1 /* $NetBSD: lk201_ws.c,v 1.1 1998/09/17 20:01:57 drochner Exp $ */
2
3 /*
4 * Copyright (c) 1998
5 * Matthias Drochner. 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 NetBSD Project
18 * by Matthias Drochner.
19 * 4. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 *
33 */
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37
38 #include <dev/wscons/wsconsio.h>
39
40 #include <dev/dec/lk201reg.h>
41 #include <dev/dec/lk201var.h>
42 #include <dev/dec/wskbdmap_lk201.h> /* for {MIN,MAX}_LK201_KEY */
43
44 void
45 lk201_init_keystate(lks)
46 struct lk201_state *lks;
47 {
48 int i;
49
50 for (i = 0; i < LK_KLL; i++)
51 lks->down_keys_list[i] = -1;
52 }
53
54 int
55 lk201_decode(lks, datain, type, dataout)
56 struct lk201_state *lks;
57 int datain;
58 u_int *type;
59 int *dataout;
60 {
61 int i, freeslot;
62
63 switch (datain) {
64 case LK_KEY_UP:
65 for (i = 0; i < LK_KLL; i++)
66 lks->down_keys_list[i] = -1;
67 *type = WSCONS_EVENT_ALL_KEYS_UP;
68 return (1);
69 case LK_POWER_UP:
70 printf("lk201_decode: powerup detected\n");
71 /* XXX should reinitialize here */
72 return (0);
73 case LK_KDOWN_ERROR:
74 case LK_POWER_ERROR:
75 case LK_OUTPUT_ERROR:
76 case LK_INPUT_ERROR:
77 printf("lk201_decode: error %x\n", datain);
78 /* FALLTHRU */
79 case LK_KEY_REPEAT: /* autorepeat handled by wskbd */
80 case LK_MODE_CHANGE: /* ignore silently */
81 return (0);
82 }
83
84 if (datain < MIN_LK201_KEY || datain > MAX_LK201_KEY) {
85 printf("lk201_decode: %x\n", datain);
86 return (0);
87 }
88
89 *dataout = datain - MIN_LK201_KEY;
90
91 freeslot = -1;
92 for (i = 0; i < LK_KLL; i++) {
93 if (lks->down_keys_list[i] == datain) {
94 *type = WSCONS_EVENT_KEY_UP;
95 lks->down_keys_list[i] = -1;
96 return (1);
97 }
98 if (lks->down_keys_list[i] == -1 && freeslot == -1)
99 freeslot = i;
100 }
101
102 if (freeslot == -1) {
103 printf("lk201_decode: down(%d) no free slot\n", datain);
104 return (0);
105 }
106
107 *type = WSCONS_EVENT_KEY_DOWN;
108 lks->down_keys_list[freeslot] = datain;
109 return (1);
110 }
111