kb_hb.c revision 1.12 
1/*	$NetBSD: kb_hb.c,v 1.12 2008/04/09 15:40:30 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/cdefs.h>
30__KERNEL_RCSID(0, "$NetBSD: kb_hb.c,v 1.12 2008/04/09 15:40:30 tsutsui Exp $");
31
32#include <sys/param.h>
33#include <sys/device.h>
34#include <sys/systm.h>
35
36#include <dev/wscons/wsconsio.h>
37#include <dev/wscons/wskbdvar.h>
38#include <dev/wscons/wsksymdef.h>
39#include <dev/wscons/wsksymvar.h>
40
41#include <machine/adrsmap.h>
42
43#include <newsmips/dev/hbvar.h>
44
45struct kbreg {
46	volatile uint8_t kb_data;
47	volatile uint8_t kb_stat;
48	volatile uint8_t kb_reset;
49	volatile uint8_t kb_init;
50};
51
52struct kb_hb_softc {
53	device_t sc_dev;
54	struct kbreg *sc_reg;
55	struct device *sc_wskbddev;
56};
57
58int kb_hb_match(device_t, cfdata_t, void *);
59void kb_hb_attach(device_t, device_t, void *);
60int kb_hb_intr(void *);
61
62void kb_hb_cnattach(void);
63void kb_hb_cngetc(void *, u_int *, int *);
64void kb_hb_cnpollc(void *, int);
65
66int kb_hb_enable(void *, int);
67void kb_hb_setleds(void *, int);
68int kb_hb_ioctl(void *, u_long, void *, int, struct lwp *);
69
70extern struct wscons_keydesc newskb_keydesctab[];
71
72CFATTACH_DECL_NEW(kb_hb, sizeof(struct kb_hb_softc),
73    kb_hb_match, kb_hb_attach, NULL, NULL);
74
75struct wskbd_accessops kb_hb_accessops = {
76	kb_hb_enable,
77	kb_hb_setleds,
78	kb_hb_ioctl
79};
80
81struct wskbd_consops kb_hb_consops = {
82	kb_hb_cngetc,
83	kb_hb_cnpollc
84};
85
86struct wskbd_mapdata kb_hb_keymapdata = {
87	newskb_keydesctab,
88	KB_JP
89};
90
91int
92kb_hb_match(device_t parent, cfdata_t cf, 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(device_t parent, device_t self, void *aux)
104{
105	struct kb_hb_softc *sc = device_private(self);
106	struct hb_attach_args *ha = aux;
107	struct kbreg *reg;
108	volatile uint32_t *dipsw = (void *)DIP_SWITCH;
109	struct wskbddev_attach_args aa;
110	int intr, cons;
111
112	sc->sc_dev = self;
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	aprint_normal(" level %d", intr);
125	cons = 0;
126	if (*dipsw & 7) {
127		cons = 1;
128		aprint_normal(" (console)");
129	}
130	aprint_normal("\n");
131
132	hb_intr_establish(intr, INTEN0_KBDINT, 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(void *v)
143{
144	struct kb_hb_softc *sc = v;
145	struct kbreg *reg = sc->sc_reg;
146	volatile uint8_t *ien = (void *)INTEN0;
147	int code, type, release, val;
148	int rv = 0;
149
150	*ien &= ~RX_KBINTE;
151
152	while (reg->kb_stat & RX_KBRDY) {
153		code = reg->kb_data;
154		release = code & 0x80;
155		val = code & 0x7f;
156		type = release ? WSCONS_EVENT_KEY_UP : WSCONS_EVENT_KEY_DOWN;
157		if (sc->sc_wskbddev)
158			wskbd_input(sc->sc_wskbddev, type, val);
159		rv = 1;
160	}
161
162	*ien |= RX_KBINTE;
163	return rv;
164}
165
166void
167kb_hb_cnattach(void)
168{
169	volatile uint32_t *dipsw = (void *)DIP_SWITCH;
170
171	if (*dipsw & 7)
172		wskbd_cnattach(&kb_hb_consops, (void *)KEYB_DATA,
173		    &kb_hb_keymapdata);
174}
175
176void
177kb_hb_cngetc(void *v, u_int *type, int *data)
178{
179	struct kbreg *reg = v;
180	volatile uint8_t *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(void *v, int on)
199{
200}
201
202int
203kb_hb_enable(void *v, int on)
204{
205
206	return 0;
207}
208
209void
210kb_hb_setleds(void *v, int on)
211{
212}
213
214int
215kb_hb_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l)
216{
217
218	switch (cmd) {
219
220	case WSKBDIO_GTYPE:
221		*(int *)data = 0;		/* XXX */
222		return 0;
223	case WSKBDIO_SETLEDS:
224		return 0;
225	case WSKBDIO_GETLEDS:
226		*(int *)data = 0;
227		return 0;
228	}
229
230	return EPASSTHROUGH;
231}
232