kb_hb.c revision 1.1 
1/*	$NetBSD: kb_hb.c,v 1.1 2000/11/13 16:48:44 tsubai Exp $	*/
2
3/*-
4 * Copyright (c) 2000 Tsubai Masanari.  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/param.h>
30#include <sys/device.h>
31#include <sys/systm.h>
32
33#include <dev/wscons/wsconsio.h>
34#include <dev/wscons/wskbdvar.h>
35#include <dev/wscons/wsksymdef.h>
36#include <dev/wscons/wsksymvar.h>
37
38#include <machine/autoconf.h>
39#include <machine/adrsmap.h>
40
41struct kbreg {
42	u_char kb_data;
43	u_char kb_stat;
44	u_char kb_reset;
45	u_char kb_init;
46};
47
48struct kb_hb_softc {
49	struct device sc_dev;
50	volatile struct kbreg *sc_reg;
51	struct device *sc_wskbddev;
52};
53
54int kb_hb_match(struct device *, struct cfdata *, void *);
55void kb_hb_attach(struct device *, struct device *, void *);
56int kb_hb_intr(void *);
57
58void kb_hb_cnattach(void);
59void kb_hb_cngetc(void *, u_int *, int *);
60void kb_hb_cnpollc(void *, int);
61
62int kb_hb_enable(void *, int);
63void kb_hb_setleds(void *, int);
64int kb_hb_ioctl(void *, u_long, caddr_t, int, struct proc *);
65
66extern struct wscons_keydesc newskb_keydesctab[];
67
68struct cfattach kb_hb_ca = {
69	sizeof(struct kb_hb_softc), kb_hb_match, kb_hb_attach
70};
71
72struct wskbd_accessops kb_hb_accessops = {
73	kb_hb_enable,
74	kb_hb_setleds,
75	kb_hb_ioctl
76};
77
78struct wskbd_consops kb_hb_consops = {
79	kb_hb_cngetc,
80	kb_hb_cnpollc
81};
82
83struct wskbd_mapdata kb_hb_keymapdata = {
84	newskb_keydesctab,
85	KB_JP
86};
87
88int
89kb_hb_match(parent, cf, aux)
90	struct device *parent;
91	struct cfdata *cf;
92	void *aux;
93{
94	struct confargs *ca = aux;
95
96	if (strcmp(ca->ca_name, "kb") == 0)
97		return 1;
98
99	return 0;
100}
101
102void
103kb_hb_attach(parent, self, aux)
104	struct device *parent, *self;
105	void *aux;
106{
107	struct kb_hb_softc *sc = (void *)self;
108	volatile struct kbreg *reg = (void *)self->dv_cfdata->cf_addr;
109	int intr = self->dv_cfdata->cf_level;
110	volatile int *dipsw = (void *)DIP_SWITCH;
111	struct wskbddev_attach_args aa;
112	int cons = 0;
113
114	if (intr == -1)
115		intr = 2;
116
117	sc->sc_reg = reg;
118	reg->kb_reset = 0x01;
119	reg->kb_init = 0xf0;	/* 9600 bps */
120
121	printf(" level %d", intr);
122	if (*dipsw & 7) {
123		cons = 1;
124		printf(" (console)");
125	}
126	printf("\n");
127
128	hb_intr_establish(intr, IPL_TTY, kb_hb_intr, sc);
129
130	aa.console = cons;
131	aa.keymap = &kb_hb_keymapdata;
132	aa.accessops = &kb_hb_accessops;
133	aa.accesscookie = sc;
134	sc->sc_wskbddev = config_found(self, &aa, wskbddevprint);
135}
136
137int
138kb_hb_intr(v)
139	void *v;
140{
141	struct kb_hb_softc *sc = v;
142	volatile struct kbreg *reg = sc->sc_reg;
143	volatile u_char *ien = (void *)INTEN0;
144	int code, type, release, val;
145	int rv = 0;
146
147	*ien &= ~RX_KBINTE;
148
149	while (reg->kb_stat & RX_KBRDY) {
150		code = reg->kb_data;
151		release = code & 0x80;
152		val = code & 0x7f;
153		type = release ? WSCONS_EVENT_KEY_UP : WSCONS_EVENT_KEY_DOWN;
154		if (sc->sc_wskbddev)
155			wskbd_input(sc->sc_wskbddev, type, val);
156		rv = 1;
157	}
158
159	*ien |= RX_KBINTE;
160	return rv;
161}
162
163void
164kb_hb_cnattach()
165{
166	volatile int *dipsw = (void *)DIP_SWITCH;
167	volatile struct kbreg *reg = (void *)KEYB_DATA;
168
169	if (*dipsw & 7)
170		wskbd_cnattach(&kb_hb_consops, (void *)reg, &kb_hb_keymapdata);
171}
172
173void
174kb_hb_cngetc(v, type, data)
175	void *v;
176	u_int *type;
177	int *data;
178{
179	volatile struct kbreg *reg = v;
180	volatile u_char *ien = (void *)INTEN0;
181	int code, release, ointr;
182
183	ointr = *ien & RX_KBINTE;
184	*ien &= ~RX_KBINTE;
185
186	/* Wait for key data. */
187	while ((reg->kb_stat & RX_KBRDY) == 0);
188
189	code = reg->kb_data;
190	release = code & 0x80;
191	*data = code & 0x7f;
192	*type = release ? WSCONS_EVENT_KEY_UP : WSCONS_EVENT_KEY_DOWN;
193
194	*ien |= ointr;
195}
196
197void
198kb_hb_cnpollc(v, on)
199	void *v;
200	int on;
201{
202}
203
204int
205kb_hb_enable(v, on)
206	void *v;
207	int on;
208{
209	return 0;
210}
211
212void
213kb_hb_setleds(v, on)
214	void *v;
215	int on;
216{
217}
218
219int
220kb_hb_ioctl(v, cmd, data, flag, p)
221	void *v;
222	u_long cmd;
223	caddr_t data;
224	int flag;
225	struct proc *p;
226{
227	switch (cmd) {
228
229	case WSKBDIO_GTYPE:
230		*(int *)data = 0;		/* XXX */
231		return 0;
232	case WSKBDIO_SETLEDS:
233		return 0;
234	case WSKBDIO_GETLEDS:
235		*(int *)data = 0;
236		return 0;
237	}
238
239	return -1;
240}
241