hpf1275a_tty.c revision 1.2 
1/*	$NetBSD: hpf1275a_tty.c,v 1.2 2004/10/15 04:38:37 thorpej Exp $ */
2
3/*
4 * Copyright (c) 2004 Valeriy E. Ushakov
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. The name of the author may not be used to endorse or promote products
16 *    derived from this software without specific prior written permission
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#include <sys/cdefs.h>
31__KERNEL_RCSID(0, "$NetBSD: hpf1275a_tty.c,v 1.2 2004/10/15 04:38:37 thorpej Exp $");
32
33#include <sys/param.h>
34#include <sys/kernel.h>
35#include <sys/conf.h>
36#include <sys/device.h>
37#include <sys/tty.h>
38#include <sys/fcntl.h>
39#include <sys/proc.h>		/* XXX: for curproc */
40#include <sys/systm.h>
41#ifdef GPROF
42#include <sys/gmon.h>
43#endif
44
45#include <dev/pckbport/wskbdmap_mfii.h>
46#ifdef WSDISPLAY_COMPAT_RAWKBD
47#include <dev/hpc/pckbd_encode.h>
48#endif
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
56extern struct cfdriver hpf1275a_cd;
57
58struct hpf1275a_softc {
59	struct device sc_dev;
60
61	struct tty *sc_tp;		/* back reference to the tty */
62	struct device *sc_wskbd;	/* wskbd child */
63	int sc_enabled;
64
65};
66
67
68/* pseudo-device initialization */
69extern void	hpf1275aattach(int);
70
71/* line discipline methods */
72static int	hpf1275a_open(dev_t, struct tty *);
73static int	hpf1275a_close(struct tty *, int);
74static int	hpf1275a_input(int, struct tty *);
75
76/* autoconf(9) methods */
77static int	hpf1275a_match(struct device *, struct cfdata *, void *);
78static void	hpf1275a_attach(struct device *, struct device *, void *);
79static int	hpf1275a_detach(struct device *, int);
80
81/* wskbd(4) accessops */
82static int	hpf1275a_wskbd_enable(void *, int);
83static void	hpf1275a_wskbd_set_leds(void *, int);
84static int	hpf1275a_wskbd_ioctl(void *, u_long, caddr_t, int,
85				     struct proc *);
86
87
88CFATTACH_DECL(hpf1275a, sizeof(struct hpf1275a_softc),
89    hpf1275a_match, hpf1275a_attach, hpf1275a_detach, NULL);
90
91
92static struct linesw hpf1275a_disc = {
93	"hpf1275a", -1, hpf1275a_open, hpf1275a_close,
94	ttyerrio, ttyerrio, ttynullioctl,
95	hpf1275a_input, ttstart, nullmodem, ttpoll,
96};
97
98
99static const struct wskbd_accessops hpf1275a_wskbd_accessops = {
100	hpf1275a_wskbd_enable,
101	hpf1275a_wskbd_set_leds,
102	hpf1275a_wskbd_ioctl
103};
104
105
106static struct wskbd_mapdata hpf1275a_wskbd_keymapdata = {
107	pckbd_keydesctab, KB_US
108};
109
110
111/* F1275A scancodes -> XT scancodes so that we can use pckbd_keydesctab. */
112static uint8_t hpf1275a_to_xtscan[128] = {
113	[0x04] = 30,		/* a */
114	[0x05] = 48,		/* b */
115	[0x06] = 46,		/* c */
116	[0x07] = 32,		/* d */
117	[0x08] = 18,		/* e */
118	[0x09] = 33,		/* f */
119	[0x0a] = 34,		/* g */
120	[0x0b] = 35,		/* h */
121	[0x0c] = 23,		/* i */
122	[0x0d] = 36,		/* j */
123	[0x0e] = 37,		/* k */
124	[0x0f] = 38,		/* l */
125	[0x10] = 50,		/* m */
126	[0x11] = 49,		/* n */
127	[0x12] = 24,		/* o */
128	[0x13] = 25,		/* p */
129	[0x14] = 16,		/* q */
130	[0x15] = 19,		/* r */
131	[0x16] = 31,		/* s */
132	[0x17] = 20,		/* t */
133	[0x18] = 22,		/* u */
134	[0x19] = 47,		/* v */
135	[0x1a] = 17,		/* w */
136	[0x1b] = 45,		/* x */
137	[0x1c] = 21,		/* y */
138	[0x1d] = 44,		/* z */
139
140	[0x1e] = 2,		/* 1 */
141	[0x1f] = 3,		/* 2 */
142	[0x20] = 4,		/* 3 */
143	[0x21] = 5,		/* 4 */
144	[0x22] = 6,		/* 5 */
145	[0x23] = 7,		/* 6 */
146	[0x24] = 8,		/* 7 */
147	[0x25] = 9,		/* 8 */
148	[0x26] = 10,		/* 9 */
149	[0x27] = 11,		/* 0 */
150
151	[0x28] = 28,		/* Enter */
152
153	[0x29] = 1,		/* ESC */
154	[0x2a] = 14,		/* Backspace */
155	[0x2b] = 15,		/* Tab */
156	[0x2c] = 57,		/* Space */
157
158	[0x2d] = 12,		/* - */
159	[0x2e] = 13,		/* = */
160	[0x2f] = 26,		/* [ */
161	[0x30] = 27,		/* ] */
162	[0x31] = 43,		/* \ */
163
164	[0x33] = 39,		/* ; */
165	[0x34] = 40,		/* ' */
166	[0x35] = 41,		/* ` */
167	[0x36] = 51,		/* , */
168	[0x37] = 52,		/* . */
169	[0x38] = 53,		/* / */
170
171	[0x3a] = 59,		/* F1 */
172	[0x3b] = 60,		/* F2 */
173	[0x3c] = 61,		/* F3 */
174	[0x3d] = 62,		/* F4 */
175	[0x3e] = 63,		/* F5 */
176	[0x3f] = 64,		/* F6 */
177	[0x40] = 65,		/* F7 */
178	[0x41] = 66,		/* F8 */
179
180	[0x42] = 68,		/* "OK" -> F10 */
181	[0x43] = 87,		/* "Cancel" -> F11 */
182
183	[0x4c] = 211,		/* Del */
184
185	[0x4f] = 205,		/* Right */
186	[0x50] = 203,		/* Left  */
187	[0x51] = 208,		/* Down  */
188	[0x52] = 200,		/* Up    */
189
190	[0x53] = 67,		/* "task switch" -> F9 */
191
192	[0x65] = 221,		/* windows */
193	[0x66] = 88,		/* "keyboard" -> F12 */
194
195	[0x74] = 42,		/* Shift (left) */
196	[0x75] = 54,		/* Shift (right) */
197	[0x76] = 56,		/* Alt (left) */
198	[0x77] = 184,		/* Fn -> AltGr == Mode Switch */
199	[0x78] = 29,		/* Control (left) */
200};
201
202
203/*
204 * Pseudo-device initialization routine called from main().
205 */
206void
207hpf1275aattach(int n)
208{
209	int discno;
210	int error;
211
212	discno = ttyldisc_add(&hpf1275a_disc, -1);
213	if (discno < 0) {
214		printf("%s: unable to register line discipline\n",
215		       hpf1275a_cd.cd_name);
216		return;
217	}
218
219	error = config_cfattach_attach(hpf1275a_cd.cd_name, &hpf1275a_ca);
220	if (error) {
221		printf("%s: unable to register cfattach, error = %d\n",
222		       hpf1275a_cd.cd_name, error);
223		config_cfdriver_detach(&hpf1275a_cd);
224		ttyldisc_remove(hpf1275a_disc.l_name);
225	}
226}
227
228
229/*
230 * Autoconf match routine.
231 *
232 * XXX: unused: config_attach_pseudo(9) does not call ca_match.
233 */
234static int
235hpf1275a_match(struct device *self, struct cfdata *cfdata, void *arg)
236{
237
238	/* pseudo-device; always present */
239	return (1);
240}
241
242
243/*
244 * Autoconf attach routine.  Called by config_attach_pseudo(9) when we
245 * open the line discipline.
246 */
247static void
248hpf1275a_attach(struct device *parent, struct device *self, void *aux)
249{
250	struct hpf1275a_softc *sc = (struct hpf1275a_softc *)self;
251	struct wskbddev_attach_args wska;
252
253	wska.console = 0;
254	wska.keymap = &hpf1275a_wskbd_keymapdata;
255	wska.accessops = &hpf1275a_wskbd_accessops;
256	wska.accesscookie = sc;
257
258	sc->sc_enabled = 0;
259	sc->sc_wskbd = config_found(self, &wska, wskbddevprint);
260}
261
262
263/*
264 * Autoconf detach routine.  Called when we close the line discipline.
265 */
266static int
267hpf1275a_detach(struct device *self, int flags)
268{
269	struct hpf1275a_softc *sc = (struct hpf1275a_softc *)self;
270	int error;
271
272	if (sc->sc_wskbd == NULL)
273		return (0);
274
275	error = config_detach(sc->sc_wskbd, 0);
276
277	return (error);
278}
279
280
281/*
282 * Line discipline open routine.
283 */
284int
285hpf1275a_open(dev_t dev, struct tty *tp)
286{
287	static struct cfdata hpf1275a_cfdata = {
288		.cf_name = "hpf1275a",
289		.cf_atname = "hpf1275a",
290		.cf_unit = DVUNIT_ANY,
291		.cf_fstate = FSTATE_STAR,
292	};
293	struct proc *p = curproc;		/* XXX */
294	struct hpf1275a_softc *sc;
295	int error, s;
296
297	if ((error = suser(p->p_ucred, &p->p_acflag)) != 0)
298		return (error);
299
300	s = spltty();
301
302	sc = (struct hpf1275a_softc *) config_attach_pseudo(&hpf1275a_cfdata);
303	if (sc == NULL) {
304		splx(s);
305		return (EIO);
306	}
307
308	tp->t_sc = sc;
309	sc->sc_tp = tp;
310
311	splx(s);
312	return (0);
313}
314
315
316/*
317 * Line discipline close routine.
318 */
319int
320hpf1275a_close(struct tty *tp, int flag)
321{
322	struct hpf1275a_softc *sc = (struct hpf1275a_softc *)tp->t_sc;
323	int s;
324
325	s = spltty();
326	ttyflush(tp, FREAD | FWRITE);
327	tp->t_linesw = linesw[0]; /* default line discipline */
328	if (sc != NULL) {
329		tp->t_sc = NULL;
330		if (sc->sc_tp == tp)
331			config_detach(&sc->sc_dev, 0);
332	}
333	splx(s);
334	return (0);
335}
336
337
338/*
339 * Feed input from the keyboard to wskbd(4).
340 */
341int
342hpf1275a_input(int c, struct tty *tp)
343{
344	struct hpf1275a_softc *sc = (struct hpf1275a_softc *)tp->t_sc;
345	int code;
346	u_int type;
347	int xtscan;
348
349	if (!sc->sc_enabled)
350		return (0);
351
352	if (c & TTY_ERRORMASK)
353		return (0);	/* TODO? */
354
355	code = c & TTY_CHARMASK;
356	if (code & 0x80) {
357		type = WSCONS_EVENT_KEY_UP;
358		code &= ~0x80;
359	} else
360		type = WSCONS_EVENT_KEY_DOWN;
361
362	xtscan = hpf1275a_to_xtscan[code];
363	if (xtscan == 0) {
364		printf("hpf1275a: unknown code 0x%x\n", code);
365		return (0);
366	}
367
368	KASSERT(sc->sc_wskbd != NULL);
369	wskbd_input(sc->sc_wskbd, type, xtscan);
370
371	return (0);
372}
373
374
375static int
376hpf1275a_wskbd_enable(void *self, int on)
377{
378	struct hpf1275a_softc *sc = (struct hpf1275a_softc *)self;
379
380	sc->sc_enabled = on;
381	return (0);
382}
383
384
385/* ARGSUSED */
386static void
387hpf1275a_wskbd_set_leds(void *self, int leds)
388{
389
390	/* this keyboard has no leds; nothing to do */
391	return;
392}
393
394
395static int
396hpf1275a_wskbd_ioctl(void *self, u_long cmd, caddr_t data, int flag,
397		     struct proc *p)
398{
399	/* struct hpf1275a_softc *sc = (struct hpf1275a_softc *)self; */
400
401	switch (cmd) {
402	case WSKBDIO_GTYPE:
403		*(int *)data = WSKBD_TYPE_HPC_KBD; /* may be use new type? */
404		return (0);
405
406	case WSKBDIO_GETLEDS:
407		*(int *)data = 0; /* this keyboard has no leds */
408		return (0);
409
410	default:
411		return (EPASSTHROUGH);
412	}
413}
414