kb_hb.c revision 1.4 
1/*	$NetBSD: kb_hb.c,v 1.4 2002/10/02 04:27:52 thorpej 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
68CFATTACH_DECL(kb_hb, sizeof(struct kb_hb_softc),
69    kb_hb_match, kb_hb_attach, NULL, NULL);
70
71struct wskbd_accessops kb_hb_accessops = {
72	kb_hb_enable,
73	kb_hb_setleds,
74	kb_hb_ioctl
75};
76
77struct wskbd_consops kb_hb_consops = {
78	kb_hb_cngetc,
79	kb_hb_cnpollc
80};
81
82struct wskbd_mapdata kb_hb_keymapdata = {
83	newskb_keydesctab,
84	KB_JP
85};
86
87int
88kb_hb_match(parent, cf, aux)
89	struct device *parent;
90	struct cfdata *cf;
91	void *aux;
92{
93	struct confargs *ca = aux;
94
95	if (strcmp(ca->ca_name, "kb") == 0)
96		return 1;
97
98	return 0;
99}
100
101void
102kb_hb_attach(parent, self, aux)
103	struct device *parent, *self;
104	void *aux;
105{
106	struct kb_hb_softc *sc = (void *)self;
107	volatile struct kbreg *reg = (void *)self->dv_cfdata->cf_addr;
108	int intr = self->dv_cfdata->cf_level;
109	volatile int *dipsw = (void *)DIP_SWITCH;
110	struct wskbddev_attach_args aa;
111	int cons = 0;
112
113	if (intr == -1)
114		intr = 2;
115
116	sc->sc_reg = reg;
117	reg->kb_reset = 0x01;
118	reg->kb_init = 0xf0;	/* 9600 bps */
119
120	printf(" level %d", intr);
121	if (*dipsw & 7) {
122		cons = 1;
123		printf(" (console)");
124	}
125	printf("\n");
126
127	hb_intr_establish(intr, IPL_TTY, kb_hb_intr, sc);
128
129	aa.console = cons;
130	aa.keymap = &kb_hb_keymapdata;
131	aa.accessops = &kb_hb_accessops;
132	aa.accesscookie = sc;
133	sc->sc_wskbddev = config_found(self, &aa, wskbddevprint);
134}
135
136int
137kb_hb_intr(v)
138	void *v;
139{
140	struct kb_hb_softc *sc = v;
141	volatile struct kbreg *reg = sc->sc_reg;
142	volatile u_char *ien = (void *)INTEN0;
143	int code, type, release, val;
144	int rv = 0;
145
146	*ien &= ~RX_KBINTE;
147
148	while (reg->kb_stat & RX_KBRDY) {
149		code = reg->kb_data;
150		release = code & 0x80;
151		val = code & 0x7f;
152		type = release ? WSCONS_EVENT_KEY_UP : WSCONS_EVENT_KEY_DOWN;
153		if (sc->sc_wskbddev)
154			wskbd_input(sc->sc_wskbddev, type, val);
155		rv = 1;
156	}
157
158	*ien |= RX_KBINTE;
159	return rv;
160}
161
162void
163kb_hb_cnattach()
164{
165	volatile int *dipsw = (void *)DIP_SWITCH;
166	volatile struct kbreg *reg = (void *)KEYB_DATA;
167
168	if (*dipsw & 7)
169		wskbd_cnattach(&kb_hb_consops, (void *)reg, &kb_hb_keymapdata);
170}
171
172void
173kb_hb_cngetc(v, type, data)
174	void *v;
175	u_int *type;
176	int *data;
177{
178	volatile struct kbreg *reg = v;
179	volatile u_char *ien = (void *)INTEN0;
180	int code, release, ointr;
181
182	ointr = *ien & RX_KBINTE;
183	*ien &= ~RX_KBINTE;
184
185	/* Wait for key data. */
186	while ((reg->kb_stat & RX_KBRDY) == 0);
187
188	code = reg->kb_data;
189	release = code & 0x80;
190	*data = code & 0x7f;
191	*type = release ? WSCONS_EVENT_KEY_UP : WSCONS_EVENT_KEY_DOWN;
192
193	*ien |= ointr;
194}
195
196void
197kb_hb_cnpollc(v, on)
198	void *v;
199	int on;
200{
201}
202
203int
204kb_hb_enable(v, on)
205	void *v;
206	int on;
207{
208	return 0;
209}
210
211void
212kb_hb_setleds(v, on)
213	void *v;
214	int on;
215{
216}
217
218int
219kb_hb_ioctl(v, cmd, data, flag, p)
220	void *v;
221	u_long cmd;
222	caddr_t data;
223	int flag;
224	struct proc *p;
225{
226	switch (cmd) {
227
228	case WSKBDIO_GTYPE:
229		*(int *)data = 0;		/* XXX */
230		return 0;
231	case WSKBDIO_SETLEDS:
232		return 0;
233	case WSKBDIO_GETLEDS:
234		*(int *)data = 0;
235		return 0;
236	}
237
238	return EPASSTHROUGH;
239}
240