hpf1275a_tty.c revision 1.9 
1/*	$NetBSD: hpf1275a_tty.c,v 1.9 2006/05/15 12:39:05 yamt 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 1.9 2006/05/15 12:39:05 yamt Exp $");
32
33#include "opt_wsdisplay_compat.h"
34
35#include <sys/param.h>
36#include <sys/kernel.h>
37#include <sys/conf.h>
38#include <sys/device.h>
39#include <sys/tty.h>
40#include <sys/fcntl.h>
41#include <sys/proc.h>		/* XXX: for curproc */
42#include <sys/systm.h>
43#include <sys/kauth.h>
44#ifdef GPROF
45#include <sys/gmon.h>
46#endif
47
48#include <dev/pckbport/wskbdmap_mfii.h>
49#ifdef WSDISPLAY_COMPAT_RAWKBD
50#include <dev/hpc/pckbd_encode.h>
51#endif
52
53#include <dev/wscons/wsconsio.h>
54#include <dev/wscons/wskbdvar.h>
55#include <dev/wscons/wsksymdef.h>
56#include <dev/wscons/wsksymvar.h>
57
58
59extern struct cfdriver hpf1275a_cd;
60
61struct hpf1275a_softc {
62	struct device sc_dev;
63
64	struct tty *sc_tp;		/* back reference to the tty */
65	struct device *sc_wskbd;	/* wskbd child */
66	int sc_enabled;
67#ifdef WSDISPLAY_COMPAT_RAWKBD
68	int sc_rawkbd;
69#endif
70};
71
72
73/* pseudo-device initialization */
74extern void	hpf1275aattach(int);
75
76/* line discipline methods */
77static int	hpf1275a_open(dev_t, struct tty *);
78static int	hpf1275a_close(struct tty *, int);
79static int	hpf1275a_input(int, struct tty *);
80
81/* autoconf(9) methods */
82static int	hpf1275a_match(struct device *, struct cfdata *, void *);
83static void	hpf1275a_attach(struct device *, struct device *, void *);
84static int	hpf1275a_detach(struct device *, int);
85
86/* wskbd(4) accessops */
87static int	hpf1275a_wskbd_enable(void *, int);
88static void	hpf1275a_wskbd_set_leds(void *, int);
89static int	hpf1275a_wskbd_ioctl(void *, u_long, caddr_t, int,
90				     struct lwp *);
91
92
93CFATTACH_DECL(hpf1275a, sizeof(struct hpf1275a_softc),
94    hpf1275a_match, hpf1275a_attach, hpf1275a_detach, NULL);
95
96
97static struct linesw hpf1275a_disc = {
98	.l_name = "hpf1275a",
99	.l_open = hpf1275a_open,
100	.l_close = hpf1275a_close,
101	.l_read = ttyerrio,
102	.l_write = ttyerrio,
103	.l_ioctl = ttynullioctl,
104	.l_rint = hpf1275a_input,
105	.l_start = ttstart,
106	.l_modem = nullmodem,
107	.l_poll = ttpoll
108};
109
110
111static const struct wskbd_accessops hpf1275a_wskbd_accessops = {
112	hpf1275a_wskbd_enable,
113	hpf1275a_wskbd_set_leds,
114	hpf1275a_wskbd_ioctl
115};
116
117
118static struct wskbd_mapdata hpf1275a_wskbd_keymapdata = {
119	pckbd_keydesctab, KB_US
120};
121
122
123/* F1275A scancodes -> XT scancodes so that we can use pckbd_keydesctab. */
124static const uint8_t hpf1275a_to_xtscan[128] = {
125	[0x04] = 30,		/* a */
126	[0x05] = 48,		/* b */
127	[0x06] = 46,		/* c */
128	[0x07] = 32,		/* d */
129	[0x08] = 18,		/* e */
130	[0x09] = 33,		/* f */
131	[0x0a] = 34,		/* g */
132	[0x0b] = 35,		/* h */
133	[0x0c] = 23,		/* i */
134	[0x0d] = 36,		/* j */
135	[0x0e] = 37,		/* k */
136	[0x0f] = 38,		/* l */
137	[0x10] = 50,		/* m */
138	[0x11] = 49,		/* n */
139	[0x12] = 24,		/* o */
140	[0x13] = 25,		/* p */
141	[0x14] = 16,		/* q */
142	[0x15] = 19,		/* r */
143	[0x16] = 31,		/* s */
144	[0x17] = 20,		/* t */
145	[0x18] = 22,		/* u */
146	[0x19] = 47,		/* v */
147	[0x1a] = 17,		/* w */
148	[0x1b] = 45,		/* x */
149	[0x1c] = 21,		/* y */
150	[0x1d] = 44,		/* z */
151
152	[0x1e] = 2,		/* 1 */
153	[0x1f] = 3,		/* 2 */
154	[0x20] = 4,		/* 3 */
155	[0x21] = 5,		/* 4 */
156	[0x22] = 6,		/* 5 */
157	[0x23] = 7,		/* 6 */
158	[0x24] = 8,		/* 7 */
159	[0x25] = 9,		/* 8 */
160	[0x26] = 10,		/* 9 */
161	[0x27] = 11,		/* 0 */
162
163	[0x28] = 28,		/* Enter */
164
165	[0x29] = 1,		/* ESC */
166	[0x2a] = 14,		/* Backspace */
167	[0x2b] = 15,		/* Tab */
168	[0x2c] = 57,		/* Space */
169
170	[0x2d] = 12,		/* - */
171	[0x2e] = 13,		/* = */
172	[0x2f] = 26,		/* [ */
173	[0x30] = 27,		/* ] */
174	[0x31] = 43,		/* \ */
175
176	[0x33] = 39,		/* ; */
177	[0x34] = 40,		/* ' */
178	[0x35] = 41,		/* ` */
179	[0x36] = 51,		/* , */
180	[0x37] = 52,		/* . */
181	[0x38] = 53,		/* / */
182
183	[0x3a] = 59,		/* F1 */
184	[0x3b] = 60,		/* F2 */
185	[0x3c] = 61,		/* F3 */
186	[0x3d] = 62,		/* F4 */
187	[0x3e] = 63,		/* F5 */
188	[0x3f] = 64,		/* F6 */
189	[0x40] = 65,		/* F7 */
190	[0x41] = 66,		/* F8 */
191
192	[0x42] = 68,		/* "OK" -> F10 */
193	[0x43] = 87,		/* "Cancel" -> F11 */
194
195	[0x4c] = 211,		/* Del */
196
197	[0x4f] = 205,		/* Right */
198	[0x50] = 203,		/* Left  */
199	[0x51] = 208,		/* Down  */
200	[0x52] = 200,		/* Up    */
201
202	[0x53] = 67,		/* "task switch" -> F9 */
203
204	[0x65] = 221,		/* windows */
205	[0x66] = 88,		/* "keyboard" -> F12 */
206
207	[0x74] = 42,		/* Shift (left) */
208	[0x75] = 54,		/* Shift (right) */
209	[0x76] = 56,		/* Alt (left) */
210	[0x77] = 184,		/* Fn -> AltGr == Mode Switch */
211	[0x78] = 29,		/* Control (left) */
212};
213
214
215/*
216 * Pseudo-device initialization routine called from main().
217 */
218void
219hpf1275aattach(int n)
220{
221	int error;
222
223	error = ttyldisc_attach(&hpf1275a_disc);
224	if (error) {
225		printf("%s: unable to register line discipline, error = %d\n",
226		       hpf1275a_cd.cd_name, error);
227		return;
228	}
229
230	error = config_cfattach_attach(hpf1275a_cd.cd_name, &hpf1275a_ca);
231	if (error) {
232		printf("%s: unable to register cfattach, error = %d\n",
233		       hpf1275a_cd.cd_name, error);
234		config_cfdriver_detach(&hpf1275a_cd);
235		(void) ttyldisc_detach(&hpf1275a_disc);
236	}
237}
238
239
240/*
241 * Autoconf match routine.
242 *
243 * XXX: unused: config_attach_pseudo(9) does not call ca_match.
244 */
245static int
246hpf1275a_match(struct device *self, struct cfdata *cfdata, void *arg)
247{
248
249	/* pseudo-device; always present */
250	return (1);
251}
252
253
254/*
255 * Autoconf attach routine.  Called by config_attach_pseudo(9) when we
256 * open the line discipline.
257 */
258static void
259hpf1275a_attach(struct device *parent, struct device *self, void *aux)
260{
261	struct hpf1275a_softc *sc = device_private(self);
262	struct wskbddev_attach_args wska;
263
264	wska.console = 0;
265	wska.keymap = &hpf1275a_wskbd_keymapdata;
266	wska.accessops = &hpf1275a_wskbd_accessops;
267	wska.accesscookie = sc;
268
269	sc->sc_enabled = 0;
270#ifdef WSDISPLAY_COMPAT_RAWKBD
271	sc->sc_rawkbd = 0;
272#endif
273	sc->sc_wskbd = config_found(self, &wska, wskbddevprint);
274}
275
276
277/*
278 * Autoconf detach routine.  Called when we close the line discipline.
279 */
280static int
281hpf1275a_detach(struct device *self, int flags)
282{
283	struct hpf1275a_softc *sc = device_private(self);
284	int error;
285
286	if (sc->sc_wskbd == NULL)
287		return (0);
288
289	error = config_detach(sc->sc_wskbd, 0);
290
291	return (error);
292}
293
294
295/*
296 * Line discipline open routine.
297 */
298int
299hpf1275a_open(dev_t dev, struct tty *tp)
300{
301	static struct cfdata hpf1275a_cfdata = {
302		.cf_name = "hpf1275a",
303		.cf_atname = "hpf1275a",
304		.cf_unit = DVUNIT_ANY,
305		.cf_fstate = FSTATE_STAR,
306	};
307	struct proc *p = curproc;		/* XXX */
308	struct hpf1275a_softc *sc;
309	int error, s;
310
311	if ((error = kauth_authorize_generic(p->p_cred, KAUTH_GENERIC_ISSUSER,
312	    &p->p_acflag)) != 0)
313		return (error);
314
315	s = spltty();
316
317	sc = (struct hpf1275a_softc *) config_attach_pseudo(&hpf1275a_cfdata);
318	if (sc == NULL) {
319		splx(s);
320		return (EIO);
321	}
322
323	tp->t_sc = sc;
324	sc->sc_tp = tp;
325
326	splx(s);
327	return (0);
328}
329
330
331/*
332 * Line discipline close routine.
333 */
334int
335hpf1275a_close(struct tty *tp, int flag)
336{
337	struct hpf1275a_softc *sc = (struct hpf1275a_softc *)tp->t_sc;
338	int s;
339
340	s = spltty();
341	ttyflush(tp, FREAD | FWRITE);
342	ttyldisc_release(tp->t_linesw);
343	tp->t_linesw = ttyldisc_default();
344	if (sc != NULL) {
345		tp->t_sc = NULL;
346		if (sc->sc_tp == tp)
347			config_detach(&sc->sc_dev, 0);
348	}
349	splx(s);
350	return (0);
351}
352
353
354/*
355 * Feed input from the keyboard to wskbd(4).
356 */
357int
358hpf1275a_input(int c, struct tty *tp)
359{
360	struct hpf1275a_softc *sc = (struct hpf1275a_softc *)tp->t_sc;
361	int code;
362	u_int type;
363	int xtscan;
364
365	if (!sc->sc_enabled)
366		return (0);
367
368	if (c & TTY_ERRORMASK)
369		return (0);	/* TODO? */
370
371	code = c & TTY_CHARMASK;
372	if (code & 0x80) {
373		type = WSCONS_EVENT_KEY_UP;
374		code &= ~0x80;
375	} else
376		type = WSCONS_EVENT_KEY_DOWN;
377
378	xtscan = hpf1275a_to_xtscan[code];
379	if (xtscan == 0) {
380		printf("%s: unknown code 0x%x\n", sc->sc_dev.dv_xname, code);
381		return (0);
382	}
383
384	KASSERT(sc->sc_wskbd != NULL);
385
386#ifdef WSDISPLAY_COMPAT_RAWKBD
387	if (sc->sc_rawkbd) {
388		u_char data[16];
389		int n;
390
391		n = pckbd_encode(type, xtscan, data);
392		wskbd_rawinput(sc->sc_wskbd, data, n);
393	} else
394#endif
395		wskbd_input(sc->sc_wskbd, type, xtscan);
396
397	return (0);
398}
399
400
401static int
402hpf1275a_wskbd_enable(void *self, int on)
403{
404	struct hpf1275a_softc *sc = self;
405
406	sc->sc_enabled = on;
407	return (0);
408}
409
410
411/* ARGSUSED */
412static void
413hpf1275a_wskbd_set_leds(void *self, int leds)
414{
415
416	/* this keyboard has no leds; nothing to do */
417	return;
418}
419
420
421static int
422hpf1275a_wskbd_ioctl(void *self, u_long cmd, caddr_t data, int flag,
423		     struct lwp *l)
424{
425#ifdef WSDISPLAY_COMPAT_RAWKBD
426	struct hpf1275a_softc *sc = self;
427#endif
428
429	switch (cmd) {
430	case WSKBDIO_GTYPE:
431		*(int *)data = WSKBD_TYPE_HPC_KBD; /* may be use new type? */
432		return (0);
433
434	case WSKBDIO_GETLEDS:
435		*(int *)data = 0; /* this keyboard has no leds */
436		return (0);
437
438#ifdef WSDISPLAY_COMPAT_RAWKBD
439	case WSKBDIO_SETMODE:
440		sc->sc_rawkbd = (*(int *)data == WSKBD_RAW);
441		return (0);
442#endif
443
444	default:
445		return (EPASSTHROUGH);
446	}
447}
448