kb_hb.c revision 1.5 
1/*	$NetBSD: kb_hb.c,v 1.5 2003/05/09 13:36:40 tsutsui 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/adrsmap.h>
39
40#include <newsmips/dev/hbvar.h>
41
42struct kbreg {
43	u_char kb_data;
44	u_char kb_stat;
45	u_char kb_reset;
46	u_char kb_init;
47};
48
49struct kb_hb_softc {
50	struct device sc_dev;
51	volatile struct kbreg *sc_reg;
52	struct device *sc_wskbddev;
53};
54
55int kb_hb_match(struct device *, struct cfdata *, void *);
56void kb_hb_attach(struct device *, struct device *, void *);
57int kb_hb_intr(void *);
58
59void kb_hb_cnattach(void);
60void kb_hb_cngetc(void *, u_int *, int *);
61void kb_hb_cnpollc(void *, int);
62
63int kb_hb_enable(void *, int);
64void kb_hb_setleds(void *, int);
65int kb_hb_ioctl(void *, u_long, caddr_t, int, struct proc *);
66
67extern struct wscons_keydesc newskb_keydesctab[];
68
69CFATTACH_DECL(kb_hb, sizeof(struct kb_hb_softc),
70    kb_hb_match, kb_hb_attach, NULL, NULL);
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 hb_attach_args *ha = aux;
95
96	if (strcmp(ha->ha_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	struct hb_attach_args *ha = aux;
109	volatile struct kbreg *reg;
110	volatile int *dipsw = (void *)DIP_SWITCH;
111	struct wskbddev_attach_args aa;
112	int intr, cons;
113
114	reg = (struct kbreg *)ha->ha_addr;
115	intr = ha->ha_level;
116
117	if (intr == -1)
118		intr = 2;
119
120	sc->sc_reg = reg;
121	reg->kb_reset = 0x01;
122	reg->kb_init = 0xf0;	/* 9600 bps */
123
124	printf(" level %d", intr);
125	cons = 0;
126	if (*dipsw & 7) {
127		cons = 1;
128		printf(" (console)");
129	}
130	printf("\n");
131
132	hb_intr_establish(intr, IPL_TTY, kb_hb_intr, sc);
133
134	aa.console = cons;
135	aa.keymap = &kb_hb_keymapdata;
136	aa.accessops = &kb_hb_accessops;
137	aa.accesscookie = sc;
138	sc->sc_wskbddev = config_found(self, &aa, wskbddevprint);
139}
140
141int
142kb_hb_intr(v)
143	void *v;
144{
145	struct kb_hb_softc *sc = v;
146	volatile struct kbreg *reg = sc->sc_reg;
147	volatile u_char *ien = (void *)INTEN0;
148	int code, type, release, val;
149	int rv = 0;
150
151	*ien &= ~RX_KBINTE;
152
153	while (reg->kb_stat & RX_KBRDY) {
154		code = reg->kb_data;
155		release = code & 0x80;
156		val = code & 0x7f;
157		type = release ? WSCONS_EVENT_KEY_UP : WSCONS_EVENT_KEY_DOWN;
158		if (sc->sc_wskbddev)
159			wskbd_input(sc->sc_wskbddev, type, val);
160		rv = 1;
161	}
162
163	*ien |= RX_KBINTE;
164	return rv;
165}
166
167void
168kb_hb_cnattach()
169{
170	volatile int *dipsw = (void *)DIP_SWITCH;
171	volatile struct kbreg *reg = (void *)KEYB_DATA;
172
173	if (*dipsw & 7)
174		wskbd_cnattach(&kb_hb_consops, (void *)reg, &kb_hb_keymapdata);
175}
176
177void
178kb_hb_cngetc(v, type, data)
179	void *v;
180	u_int *type;
181	int *data;
182{
183	volatile struct kbreg *reg = v;
184	volatile u_char *ien = (void *)INTEN0;
185	int code, release, ointr;
186
187	ointr = *ien & RX_KBINTE;
188	*ien &= ~RX_KBINTE;
189
190	/* Wait for key data. */
191	while ((reg->kb_stat & RX_KBRDY) == 0);
192
193	code = reg->kb_data;
194	release = code & 0x80;
195	*data = code & 0x7f;
196	*type = release ? WSCONS_EVENT_KEY_UP : WSCONS_EVENT_KEY_DOWN;
197
198	*ien |= ointr;
199}
200
201void
202kb_hb_cnpollc(v, on)
203	void *v;
204	int on;
205{
206}
207
208int
209kb_hb_enable(v, on)
210	void *v;
211	int on;
212{
213	return 0;
214}
215
216void
217kb_hb_setleds(v, on)
218	void *v;
219	int on;
220{
221}
222
223int
224kb_hb_ioctl(v, cmd, data, flag, p)
225	void *v;
226	u_long cmd;
227	caddr_t data;
228	int flag;
229	struct proc *p;
230{
231	switch (cmd) {
232
233	case WSKBDIO_GTYPE:
234		*(int *)data = 0;		/* XXX */
235		return 0;
236	case WSKBDIO_SETLEDS:
237		return 0;
238	case WSKBDIO_GETLEDS:
239		*(int *)data = 0;
240		return 0;
241	}
242
243	return EPASSTHROUGH;
244}
245