1/*	$NetBSD: mkbd.c,v 1.32 2021/09/18 15:14:40 tsutsui Exp $	*/
2
3/*-
4 * Copyright (c) 2001 Marcus Comstedt
5 * 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 by Marcus Comstedt.
18 * 4. Neither the name of The NetBSD Foundation nor the names of its
19 *    contributors may be used to endorse or promote products derived
20 *    from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
25 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
33 */
34
35#include <sys/cdefs.h>
36__KERNEL_RCSID(0, "$NetBSD: mkbd.c,v 1.32 2021/09/18 15:14:40 tsutsui Exp $");
37
38#include <sys/param.h>
39#include <sys/device.h>
40#include <sys/fcntl.h>
41#include <sys/poll.h>
42#include <sys/select.h>
43#include <sys/proc.h>
44#include <sys/signalvar.h>
45#include <sys/systm.h>
46#include <sys/bus.h>
47
48#include "wskbd.h"
49
50#include <dev/wscons/wsconsio.h>
51#include <dev/wscons/wskbdvar.h>
52#include <dev/wscons/wsksymdef.h>
53#include <dev/wscons/wsksymvar.h>
54
55#include <machine/cpu.h>
56
57#include <dreamcast/dev/maple/maple.h>
58#include <dreamcast/dev/maple/mapleconf.h>
59#include <dreamcast/dev/maple/mkbdvar.h>
60#include <dreamcast/dev/maple/mkbdmap.h>
61
62/*
63 * Function declarations.
64 */
65static	int mkbdmatch(device_t, cfdata_t, void *);
66static	void mkbdattach(device_t, device_t, void *);
67static	int mkbddetach(device_t, int);
68
69int	mkbd_enable(void *, int);
70void	mkbd_set_leds(void *, int);
71int	mkbd_ioctl(void *, u_long, void *, int, struct lwp *);
72
73struct wskbd_accessops mkbd_accessops = {
74	mkbd_enable,
75	mkbd_set_leds,
76	mkbd_ioctl,
77};
78
79static void mkbd_intr(void *, struct maple_response *, int, int);
80
81void	mkbd_cngetc(void *, u_int *, int *);
82void	mkbd_cnpollc(void *, int);
83int	mkbd_cnattach(void);
84
85struct wskbd_consops mkbd_consops = {
86	mkbd_cngetc,
87	mkbd_cnpollc,
88};
89
90struct wskbd_mapdata mkbd_keymapdata = {
91	mkbd_keydesctab,
92	KB_JP,
93};
94
95static struct mkbd_softc *mkbd_console_softc;
96
97static int mkbd_is_console;
98static int mkbd_console_initted;
99
100CFATTACH_DECL_NEW(mkbd, sizeof(struct mkbd_softc),
101    mkbdmatch, mkbdattach, mkbddetach, NULL);
102
103static int
104mkbdmatch(device_t parent, cfdata_t cf, void *aux)
105{
106	struct maple_attach_args *ma = aux;
107
108	return ma->ma_function == MAPLE_FN_KEYBOARD ? MAPLE_MATCH_FUNC : 0;
109}
110
111static void
112mkbdattach(device_t parent, device_t self, void *aux)
113{
114	struct mkbd_softc *sc = device_private(self);
115	struct maple_attach_args *ma = aux;
116#if NWSKBD > 0
117	struct wskbddev_attach_args a;
118#endif
119	uint32_t kbdtype;
120
121	sc->sc_dev = self;
122	sc->sc_parent = parent;
123	sc->sc_unit = ma->ma_unit;
124
125	kbdtype = maple_get_function_data(ma->ma_devinfo,
126	    MAPLE_FN_KEYBOARD) >> 24;
127	switch (kbdtype) {
128	case 1:
129		printf(": Japanese keyboard");
130		mkbd_keymapdata.layout = KB_JP;
131		break;
132	case 2:
133		printf(": US keyboard");
134		mkbd_keymapdata.layout = KB_US;
135		break;
136	case 3:
137		printf(": European keyboard");
138		mkbd_keymapdata.layout = KB_UK;
139		break;
140	default:
141		printf(": Unknown keyboard %d", kbdtype);
142	}
143	printf("\n");
144#ifdef MKBD_LAYOUT
145	/* allow user to override the default keymap */
146	mkbd_keymapdata.layout = MKBD_LAYOUT;
147#endif
148#ifdef MKBD_SWAPCTRLCAPS
149	/* allow user to specify swapctrlcaps with the default keymap */
150	mkbd_keymapdata.layout |= KB_SWAPCTRLCAPS;
151#endif
152
153#if NWSKBD > 0
154	if ((a.console = mkbd_is_console) != 0) {
155		mkbd_is_console = 0;
156		if (!mkbd_console_initted)
157			wskbd_cnattach(&mkbd_consops, NULL, &mkbd_keymapdata);
158		mkbd_console_softc = sc;
159	}
160	a.keymap = &mkbd_keymapdata;
161	a.accessops = &mkbd_accessops;
162	a.accesscookie = sc;
163	sc->sc_wskbddev = config_found(self, &a, wskbddevprint, CFARGS_NONE);
164#endif
165
166	maple_set_callback(parent, sc->sc_unit, MAPLE_FN_KEYBOARD,
167	    mkbd_intr, sc);
168	maple_enable_periodic(parent, sc->sc_unit, MAPLE_FN_KEYBOARD, 1);
169}
170
171static int
172mkbddetach(device_t self, int flags)
173{
174	struct mkbd_softc *sc = device_private(self);
175	int rv = 0;
176
177	if (sc == mkbd_console_softc) {
178		/*
179		 * Hack to allow another Maple keyboard to be new console.
180		 * XXX Should some other type device can be console.
181		 */
182		printf("%s: was console keyboard\n", device_xname(sc->sc_dev));
183		wskbd_cndetach();
184		mkbd_console_softc = NULL;
185		mkbd_console_initted = 0;
186		mkbd_is_console = 1;
187	}
188	if (sc->sc_wskbddev)
189		rv = config_detach(sc->sc_wskbddev, flags);
190
191	return rv;
192}
193
194int
195mkbd_enable(void *v, int on)
196{
197
198	return 0;
199}
200
201void
202mkbd_set_leds(void *v, int on)
203{
204}
205
206int
207mkbd_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l)
208{
209
210	switch (cmd) {
211	case WSKBDIO_GTYPE:
212		*(int *) data = WSKBD_TYPE_MAPLE;
213		return 0;
214	case WSKBDIO_SETLEDS:
215		return 0;
216	case WSKBDIO_GETLEDS:
217		*(int *) data = 0;
218		return 0;
219	case WSKBDIO_COMPLEXBELL:
220		return 0;
221	}
222
223	return EPASSTHROUGH;
224}
225
226int
227mkbd_cnattach(void)
228{
229
230	wskbd_cnattach(&mkbd_consops, NULL, &mkbd_keymapdata);
231	mkbd_console_initted = 1;
232	mkbd_is_console = 1;
233
234	return 0;
235}
236
237static int polledkey;
238extern int maple_polling;
239
240#define SHIFT_KEYCODE_BASE 0xe0
241#define UP_KEYCODE_FLAG 0x1000
242
243#define KEY_UP(n) do {							\
244	if (maple_polling)						\
245		polledkey = (n)|UP_KEYCODE_FLAG;			\
246	else								\
247		wskbd_input(sc->sc_wskbddev, WSCONS_EVENT_KEY_UP, (n));	\
248	} while (/*CONSTCOND*/0)
249
250#define KEY_DOWN(n) do {						\
251	if (maple_polling)						\
252		polledkey = (n);					\
253	else								\
254		wskbd_input(sc->sc_wskbddev, WSCONS_EVENT_KEY_DOWN, (n)); \
255	} while (/*CONSTCOND*/0)
256
257#define SHIFT_UP(n)	KEY_UP((n) | SHIFT_KEYCODE_BASE)
258#define SHIFT_DOWN(n)	KEY_DOWN((n) | SHIFT_KEYCODE_BASE)
259
260static void
261mkbd_intr(void *arg, struct maple_response *response, int sz, int flags)
262{
263	struct mkbd_softc *sc = arg;
264	struct mkbd_condition *kbddata = (void *) response->data;
265
266	if ((flags & MAPLE_FLAG_PERIODIC) &&
267	    sz >= sizeof(struct mkbd_condition)) {
268		int i, j, v;
269
270		v = sc->sc_condition.shift & ~kbddata->shift;
271		if (v)
272			for (i = 0; i < 8; i++)
273				if (v & (1 << i))
274					SHIFT_UP(i);
275
276		v = kbddata->shift & ~sc->sc_condition.shift;
277		if (v)
278			for (i = 0; i < 8; i++)
279				if (v & (1 << i))
280					SHIFT_DOWN(i);
281
282		for (i = 0, j = 0; i < 6; i++)
283			if (sc->sc_condition.key[i] < 4)
284				break;
285			else if (sc->sc_condition.key[i] == kbddata->key[j])
286				j++;
287			else
288				KEY_UP(sc->sc_condition.key[i]);
289
290		for (; j < 6; j++)
291			if (kbddata->key[j] < 4)
292				break;
293			else
294				KEY_DOWN(kbddata->key[j]);
295
296		memcpy(&sc->sc_condition, kbddata,
297		    sizeof(struct mkbd_condition));
298	}
299}
300
301void
302mkbd_cngetc(void *v, u_int *type, int *data)
303{
304	int key;
305
306	polledkey = -1;
307	maple_polling = 1;
308	while (polledkey == -1) {
309		if (mkbd_console_softc != NULL &&
310		    mkbd_console_softc->sc_parent != NULL) {
311			DELAY(20000);
312			maple_run_polling(mkbd_console_softc->sc_parent);
313		}
314	}
315	maple_polling = 0;
316	key = polledkey;
317
318	*data = key & ~UP_KEYCODE_FLAG;
319	*type = (key & UP_KEYCODE_FLAG) ?
320	    WSCONS_EVENT_KEY_UP : WSCONS_EVENT_KEY_DOWN;
321}
322
323void
324mkbd_cnpollc(void *v, int on)
325{
326}
327