xref: /netbsd-src/sys/arch/hpcsh/dev/j6x0tp.c (revision d48f14661dda8638fee055ba15d35bdfb29b9fa8)
1 /*	$NetBSD: j6x0tp.c,v 1.11 2006/05/23 01:34:49 uwe Exp $ */
2 
3 /*
4  * Copyright (c) 2003 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: j6x0tp.c,v 1.11 2006/05/23 01:34:49 uwe Exp $");
32 
33 #include <sys/param.h>
34 #include <sys/kernel.h>
35 #include <sys/device.h>
36 #include <sys/malloc.h>
37 #include <sys/systm.h>
38 #include <sys/callout.h>
39 #ifdef GPROF
40 #include <sys/gmon.h>
41 #endif
42 
43 #include "opt_j6x0tp.h"
44 
45 #include <dev/wscons/wsconsio.h>
46 #include <dev/wscons/wsmousevar.h>
47 #include <dev/wscons/wskbdvar.h>
48 #include <dev/wscons/wsksymvar.h>
49 #include <dev/wscons/wsksymdef.h>
50 #include <dev/hpc/hpctpanelvar.h>
51 
52 #include <machine/platid.h>
53 #include <machine/platid_mask.h>
54 
55 #include <machine/intr.h>
56 
57 #include <sh3/exception.h>
58 #include <sh3/intcreg.h>
59 #include <sh3/pfcreg.h>
60 #include <sh3/adcreg.h>
61 
62 #include <sh3/dev/adcvar.h>
63 
64 
65 #define J6X0TP_DEBUG
66 #if 0 /* XXX: disabled in favor of local version that uses printf_nolog */
67 #define DPRINTF_ENABLE
68 #define DPRINTF_DEBUG	j6x0tp_debug
69 #define DPRINTF_LEVEL	0
70 #include <machine/debug.h>
71 #else
72 #ifdef J6X0TP_DEBUG
73 volatile int j6x0tp_debug = 0;
74 #define DPRINTF_PRINTF		printf_nolog
75 #define DPRINTF(arg)		if (j6x0tp_debug) DPRINTF_PRINTF arg
76 #define DPRINTFN(n, arg)	if (j6x0tp_debug > (n)) DPRINTF_PRINTF arg
77 #else
78 #define DPRINTF(arg)		((void)0)
79 #define DPRINTFN(n, arg)	((void)0)
80 #endif
81 #endif
82 
83 
84 /*
85  * PFC bits pertinent to Jornada 6x0 touchpanel
86  */
87 #define PHDR_TP_PEN_DOWN	0x08
88 
89 #define SCPDR_TP_SCAN_ENABLE	0x20
90 #define SCPDR_TP_SCAN_Y		0x02
91 #define SCPDR_TP_SCAN_X		0x01
92 
93 /*
94  * A/D converter channels to get x/y from
95  */
96 #define ADC_CHANNEL_TP_Y	1
97 #define ADC_CHANNEL_TP_X	2
98 
99 /*
100  * Default (read: my device :) raw X/Y values for framebuffer edges.
101  * XXX: defopt these?
102  */
103 #define J6X0TP_FB_LEFT		 38
104 #define J6X0TP_FB_RIGHT		950
105 #define J6X0TP_FB_TOP		 80
106 #define J6X0TP_FB_BOTTOM	900
107 
108 /*
109  * Bottom of the n'th hard icon (n = 1..4)
110  */
111 #define J6X0TP_HARD_ICON_MAX_Y(n) \
112 	(J6X0TP_FB_TOP + ((J6X0TP_FB_BOTTOM - J6X0TP_FB_TOP) / 4) * (n))
113 
114 
115 struct j6x0tp_softc {
116 	struct device sc_dev;
117 
118 #define J6X0TP_WSMOUSE_ENABLED	0x01
119 #define J6X0TP_WSKBD_ENABLED	0x02
120 	int sc_enabled;
121 
122 	int sc_hard_icon;
123 
124 	struct callout sc_touch_ch;
125 
126 	struct device *sc_wsmousedev;
127 	struct device *sc_wskbddev;
128 
129 	struct tpcalib_softc sc_tpcalib; /* calibration info for wsmouse */
130 };
131 
132 
133 /* config machinery */
134 static int	j6x0tp_match(struct device *, struct cfdata *, void *);
135 static void	j6x0tp_attach(struct device *, struct device *, void *);
136 
137 /* wsmouse accessops */
138 static int	j6x0tp_wsmouse_enable(void *);
139 static int	j6x0tp_wsmouse_ioctl(void *, u_long, caddr_t, int,
140 				     struct lwp *);
141 static void	j6x0tp_wsmouse_disable(void *);
142 
143 /* wskbd accessops */
144 static int	j6x0tp_wskbd_enable(void *, int);
145 static void	j6x0tp_wskbd_set_leds(void *, int);
146 static int	j6x0tp_wskbd_ioctl(void *, u_long, caddr_t, int,
147 				   struct lwp *);
148 
149 /* internal driver routines */
150 static void	j6x0tp_enable(struct j6x0tp_softc *);
151 static void	j6x0tp_disable(struct j6x0tp_softc *);
152 static int	j6x0tp_set_enable(struct j6x0tp_softc *, int, int);
153 static int	j6x0tp_intr(void *);
154 static void	j6x0tp_start_polling(void *);
155 static void	j6x0tp_stop_polling(struct j6x0tp_softc *);
156 static void	j6x0tp_callout_wsmouse(void *);
157 static void	j6x0tp_callout_wskbd(void *);
158 static void	j6x0tp_wsmouse_input(struct j6x0tp_softc *, int, int);
159 static void	j6x0tp_get_raw_xy(int *, int *);
160 static int	j6x0tp_get_hard_icon(int, int);
161 
162 
163 static const struct wsmouse_accessops j6x0tp_accessops = {
164 	j6x0tp_wsmouse_enable,
165 	j6x0tp_wsmouse_ioctl,
166 	j6x0tp_wsmouse_disable
167 };
168 
169 static const struct wsmouse_calibcoords j6x0tp_default_calib = {
170 	0, 0, 639, 239,
171 	4,
172 	{{ J6X0TP_FB_LEFT,  J6X0TP_FB_TOP,      0,   0 },
173 	 { J6X0TP_FB_RIGHT, J6X0TP_FB_TOP,    639,   0 },
174 	 { J6X0TP_FB_LEFT,  J6X0TP_FB_BOTTOM,   0, 239 },
175 	 { J6X0TP_FB_RIGHT, J6X0TP_FB_BOTTOM, 639, 239 }}
176 };
177 
178 static const struct wskbd_accessops j6x0tp_wskbd_accessops = {
179 	j6x0tp_wskbd_enable,
180 	j6x0tp_wskbd_set_leds,
181 	j6x0tp_wskbd_ioctl
182 };
183 
184 
185 #ifndef J6X0TP_SETTINGS_ICON_KEYSYM
186 #define J6X0TP_SETTINGS_ICON_KEYSYM	KS_Home
187 #endif
188 #ifndef J6X0TP_PGUP_ICON_KEYSYM
189 #define J6X0TP_PGUP_ICON_KEYSYM		KS_Prior
190 #endif
191 #ifndef J6X0TP_PGDN_ICON_KEYSYM
192 #define J6X0TP_PGDN_ICON_KEYSYM		KS_Next
193 #endif
194 #ifndef J6X0TP_SWITCH_ICON_KEYSYM
195 #define J6X0TP_SWITCH_ICON_KEYSYM	KS_End
196 #endif
197 
198 static const keysym_t j6x0tp_wskbd_keydesc[] = {
199 	KS_KEYCODE(1), J6X0TP_SETTINGS_ICON_KEYSYM,
200 	KS_KEYCODE(2), J6X0TP_PGUP_ICON_KEYSYM,
201 	KS_KEYCODE(3), J6X0TP_PGDN_ICON_KEYSYM,
202 	KS_KEYCODE(4), J6X0TP_SWITCH_ICON_KEYSYM
203 };
204 
205 static const struct wscons_keydesc j6x0tp_wskbd_keydesctab[] = {
206 	{ KB_US, 0,
207 	  sizeof(j6x0tp_wskbd_keydesc)/sizeof(keysym_t),
208 	  j6x0tp_wskbd_keydesc
209 	},
210 	{0, 0, 0, 0}
211 };
212 
213 static const struct wskbd_mapdata j6x0tp_wskbd_keymapdata = {
214         j6x0tp_wskbd_keydesctab, KB_US
215 };
216 
217 
218 CFATTACH_DECL(j6x0tp, sizeof(struct j6x0tp_softc),
219     j6x0tp_match, j6x0tp_attach, NULL, NULL);
220 
221 
222 static int
223 j6x0tp_match(struct device *parent, struct cfdata *cf, void *aux)
224 {
225 
226 	/*
227 	 * XXX: platid_mask_MACH_HP_LX also matches 360LX.  It's not
228 	 * confirmed whether touch panel in 360LX is connected this
229 	 * way.  We may need to regroup platid masks.
230 	 */
231 	if (!platid_match(&platid, &platid_mask_MACH_HP_JORNADA_6XX)
232 	    && !platid_match(&platid, &platid_mask_MACH_HP_LX))
233 		return (0);
234 
235 	if (strcmp(cf->cf_name, "j6x0tp") != 0)
236 		return (0);
237 
238 	return (1);
239 }
240 
241 
242 /*
243  * Attach the touch panel driver and its ws* children.
244  *
245  * Note that we have to use submatch to distinguish between children
246  * because ws{kbd,mouse}_match match unconditionally.
247  */
248 static void
249 j6x0tp_attach(struct device *parent, struct device *self, void *aux)
250 {
251 	struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self;
252 	struct wsmousedev_attach_args wsma;
253 	struct wskbddev_attach_args wska;
254 
255 	printf("\n");
256 
257 	sc->sc_enabled = 0;
258 	sc->sc_hard_icon = 0;
259 
260 	/* touch-panel as a pointing device */
261 	wsma.accessops = &j6x0tp_accessops;
262 	wsma.accesscookie = sc;
263 
264 	sc->sc_wsmousedev = config_found_ia(self, "wsmousedev", &wsma,
265 					    wsmousedevprint);
266 	if (sc->sc_wsmousedev == NULL)
267 		return;
268 
269 	/* on-screen "hard icons" as a keyboard device */
270 	wska.console = 0;
271 	wska.keymap = &j6x0tp_wskbd_keymapdata;
272 	wska.accessops = &j6x0tp_wskbd_accessops;
273 	wska.accesscookie = sc;
274 
275 	sc->sc_wskbddev = config_found_ia(self, "wskbddev", &wska,
276 					  wskbddevprint);
277 
278 	/* init calibration, set default parameters */
279 	tpcalib_init(&sc->sc_tpcalib);
280 	tpcalib_ioctl(&sc->sc_tpcalib, WSMOUSEIO_SCALIBCOORDS,
281 		      (caddr_t)__UNCONST(&j6x0tp_default_calib), 0, 0);
282 
283 	/* used when in polling mode */
284 	callout_init(&sc->sc_touch_ch);
285 
286 	/* establish interrupt handler, but disable until opened */
287 	intc_intr_establish(SH7709_INTEVT2_IRQ3, IST_EDGE, IPL_TTY,
288 			    j6x0tp_intr, sc);
289 	intc_intr_disable(SH7709_INTEVT2_IRQ3);
290 }
291 
292 
293 /*
294  * Enable touch panel:  we start in interrupt mode.
295  * Must be called as spltty().
296  */
297 static void
298 j6x0tp_enable(struct j6x0tp_softc *sc)
299 {
300 
301 	DPRINTFN(2, ("%s: enable\n", sc->sc_dev.dv_xname));
302 	intc_intr_enable(SH7709_INTEVT2_IRQ3);
303 }
304 
305 
306 /*
307  * Disable touch panel: disable interrupt, cancel pending callout.
308  * Must be called as spltty().
309  */
310 static void
311 j6x0tp_disable(struct j6x0tp_softc *sc)
312 {
313 
314 	DPRINTFN(2, ("%s: disable\n", sc->sc_dev.dv_xname));
315 	intc_intr_disable(SH7709_INTEVT2_IRQ3);
316 	callout_stop(&sc->sc_touch_ch);
317 }
318 
319 
320 static int
321 j6x0tp_set_enable(struct j6x0tp_softc *sc, int on, int child)
322 {
323 	int s = spltty();
324 
325 	if (on) {
326 		if (!sc->sc_enabled)
327 			j6x0tp_enable(sc);
328 		sc->sc_enabled |= child;
329 	} else {
330 		sc->sc_enabled &= ~child;
331 		if (!sc->sc_enabled)
332 			j6x0tp_disable(sc);
333 	}
334 
335 	splx(s);
336 	return (0);
337 }
338 
339 
340 static int
341 j6x0tp_wsmouse_enable(void *self)
342 {
343 	struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self;
344 
345 	DPRINTFN(1, ("%s: wsmouse enable\n", sc->sc_dev.dv_xname));
346 	return (j6x0tp_set_enable(sc, 1, J6X0TP_WSMOUSE_ENABLED));
347 }
348 
349 
350 static void
351 j6x0tp_wsmouse_disable(void *self)
352 {
353 	struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self;
354 
355 	DPRINTFN(1, ("%s: wsmouse disable\n", sc->sc_dev.dv_xname));
356 	j6x0tp_set_enable(sc, 0, J6X0TP_WSMOUSE_ENABLED);
357 }
358 
359 
360 static int
361 j6x0tp_wskbd_enable(void *self, int on)
362 {
363 	struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self;
364 
365 	DPRINTFN(1, ("%s: wskbd %sable\n", sc->sc_dev.dv_xname,
366 		     on ? "en" : "dis"));
367 	return (j6x0tp_set_enable(sc, on, J6X0TP_WSKBD_ENABLED));
368 }
369 
370 
371 static int
372 j6x0tp_intr(void *self)
373 {
374 	struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self;
375 
376 	uint8_t irr0;
377 	uint8_t phdr, touched;
378 	unsigned int steady, tremor_timeout;
379 
380 	irr0 = _reg_read_1(SH7709_IRR0);
381 	if ((irr0 & IRR0_IRQ3) == 0) {
382 #ifdef DIAGNOSTIC
383 		printf("%s: irr0 %02x?\n", sc->sc_dev.dv_xname, irr0);
384 #endif
385 		return (0);
386 	}
387 
388 	if (!sc->sc_enabled) {
389 		DPRINTFN(1, ("%s: intr: !sc_enabled\n", sc->sc_dev.dv_xname));
390 		intc_intr_disable(SH7709_INTEVT2_IRQ3);
391 		goto served;
392 	}
393 
394 
395 	/*
396 	 * Number of times the "touched" bit should be read
397 	 * consecutively.
398 	 */
399 #	define TREMOR_THRESHOLD 0x300
400 
401 	steady = 0;
402 	tremor_timeout = TREMOR_THRESHOLD * 16;	/* XXX: arbitrary */
403 	touched = PHDR_TP_PEN_DOWN;	/* we start with "touched" state */
404 
405 	do {
406 		phdr = _reg_read_1(SH7709_PHDR);
407 
408 		if ((phdr & PHDR_TP_PEN_DOWN) == touched)
409 			++steady;
410 		else {
411 			steady = 0;
412 			touched = phdr & PHDR_TP_PEN_DOWN;
413 		}
414 
415 		if (--tremor_timeout == 0) {
416 			DPRINTF(("%s: tremor timeout!\n",
417 				 sc->sc_dev.dv_xname));
418 			goto served;
419 		}
420 	} while (steady < TREMOR_THRESHOLD);
421 
422 	if (touched) {
423 		intc_intr_disable(SH7709_INTEVT2_IRQ3);
424 
425 		/*
426 		 * ADC readings are not stable yet, so schedule
427 		 * callout instead of accessing ADC from the interrupt
428 		 * handler only to immediately delay().
429 		 */
430 		callout_reset(&sc->sc_touch_ch, hz/32,
431 			      j6x0tp_start_polling, sc);
432 	} else
433 		DPRINTFN(1, ("%s: tremor\n", sc->sc_dev.dv_xname));
434   served:
435 	/* clear the interrupt (XXX: protect access?) */
436 	_reg_write_1(SH7709_IRR0, irr0 & ~IRR0_IRQ3);
437 
438 	return (1);
439 }
440 
441 
442 /*
443  * Called from the interrupt handler at spltty() upon first touch.
444  * Decide if we are going to report this touch as a mouse click/drag
445  * or as a key press.
446  */
447 static void
448 j6x0tp_start_polling(void *self)
449 {
450 	struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self;
451 	uint8_t phdr;
452 	int do_mouse, do_kbd;
453 	int rawx, rawy;
454 	int icon;
455 
456 	phdr = _reg_read_1(SH7709_PHDR);
457 	if ((phdr & PHDR_TP_PEN_DOWN) == 0) {
458 		DPRINTFN(2, ("%s: start: pen is not down\n",
459 			     sc->sc_dev.dv_xname));
460 		j6x0tp_stop_polling(sc);
461 	}
462 
463 	j6x0tp_get_raw_xy(&rawx, &rawy);
464 	DPRINTFN(2, ("%s: start: %4d %4d -> ",
465 		     sc->sc_dev.dv_xname, rawx, rawy));
466 
467 	do_mouse = sc->sc_enabled & J6X0TP_WSMOUSE_ENABLED;
468 #ifdef J6X0TP_WSMOUSE_EXCLUSIVE
469 	if (do_mouse)
470 		do_kbd = 0;
471 	else
472 #endif
473 		do_kbd = sc->sc_enabled & J6X0TP_WSKBD_ENABLED;
474 
475 	icon = 0;
476 	if (do_kbd)
477 		icon = j6x0tp_get_hard_icon(rawx, rawy);
478 
479 	if (icon != 0) {
480 		DPRINTFN(2, ("icon %d\n", icon));
481 		sc->sc_hard_icon = icon;
482 		wskbd_input(sc->sc_wskbddev, WSCONS_EVENT_KEY_DOWN, icon);
483 		callout_reset(&sc->sc_touch_ch, hz/32,
484 			      j6x0tp_callout_wskbd, sc);
485 	} else if (do_mouse) {
486 		DPRINTFN(2, ("mouse\n"));
487 		j6x0tp_wsmouse_input(sc, rawx, rawy);
488 		callout_reset(&sc->sc_touch_ch, hz/32,
489 			      j6x0tp_callout_wsmouse, sc);
490 	} else {
491 		DPRINTFN(2, ("ignore\n"));
492 		j6x0tp_stop_polling(sc);
493 	}
494 }
495 
496 
497 /*
498  * Re-enable touch panel interrupt.
499  * Called as spltty() when polling code detects pen-up.
500  */
501 static void
502 j6x0tp_stop_polling(struct j6x0tp_softc *sc)
503 {
504 	uint8_t irr0;
505 
506 	DPRINTFN(2, ("%s: stop\n", sc->sc_dev.dv_xname));
507 
508 	/* clear pending interrupt signal before re-enabling the interrupt */
509 	irr0 = _reg_read_1(SH7709_IRR0);
510 	if ((irr0 & IRR0_IRQ3) != 0)
511 		_reg_write_1(SH7709_IRR0, irr0 & ~IRR0_IRQ3);
512 
513 	intc_intr_enable(SH7709_INTEVT2_IRQ3);
514 }
515 
516 
517 /*
518  * We are reporting this touch as a keyboard event.
519  * Poll touch screen waiting for pen-up.
520  */
521 static void
522 j6x0tp_callout_wskbd(void *self)
523 {
524 	struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self;
525 	uint8_t phdr;
526 	int s;
527 
528 	s = spltty();
529 
530 	if (!sc->sc_enabled) {
531 		DPRINTFN(1, ("%s: wskbd callout: !sc_enabled\n",
532 			     sc->sc_dev.dv_xname));
533 		splx(s);
534 		return;
535 	}
536 
537 	phdr = _reg_read_1(SH7709_PHDR);
538 	if ((phdr & PHDR_TP_PEN_DOWN) != 0) {
539 		/*
540 		 * Pen is still down, continue polling.  Wskbd's
541 		 * auto-repeat takes care of repeating the key.
542 		 */
543 		callout_schedule(&sc->sc_touch_ch, hz/32);
544 	} else {
545 		wskbd_input(sc->sc_wskbddev,
546 			    WSCONS_EVENT_KEY_UP, sc->sc_hard_icon);
547 		j6x0tp_stop_polling(sc);
548 	}
549 	splx(s);
550 }
551 
552 
553 /*
554  * We are reporting this touch as a mouse click/drag.
555  */
556 static void
557 j6x0tp_callout_wsmouse(void *self)
558 {
559 	struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self;
560 	uint8_t phdr;
561 	int rawx, rawy;
562 	int s;
563 
564 	s = spltty();
565 
566 	if (!sc->sc_enabled) {
567 		DPRINTFN(1, ("%s: wsmouse callout: !sc_enabled\n",
568 			     sc->sc_dev.dv_xname));
569 		splx(s);
570 		return;
571 	}
572 
573 	phdr = _reg_read_1(SH7709_PHDR);
574 	if ((phdr & PHDR_TP_PEN_DOWN) != 0) {
575 		j6x0tp_get_raw_xy(&rawx, &rawy);
576 		j6x0tp_wsmouse_input(sc, rawx, rawy); /* mouse dragged */
577 		callout_schedule(&sc->sc_touch_ch, hz/32);
578 	} else {
579 		wsmouse_input(sc->sc_wsmousedev, 0, 0, 0, 0, /* button up */
580 			      WSMOUSE_INPUT_DELTA);
581 		j6x0tp_stop_polling(sc);
582 	}
583 	splx(s);
584 }
585 
586 
587 /*
588  * Report mouse click/drag.
589  */
590 static void
591 j6x0tp_wsmouse_input(struct j6x0tp_softc *sc, int rawx, int rawy)
592 {
593 	int x, y;
594 
595 	tpcalib_trans(&sc->sc_tpcalib, rawx, rawy, &x, &y);
596 
597 	DPRINTFN(3, ("%s: %4d %4d -> %3d %3d\n",
598 		     sc->sc_dev.dv_xname, rawx, rawy, x, y));
599 
600 	wsmouse_input(sc->sc_wsmousedev,
601 		      1,	/* button */
602 		      x, y,
603 		      0,	/* flags */
604 		      WSMOUSE_INPUT_ABSOLUTE_X | WSMOUSE_INPUT_ABSOLUTE_Y);
605 }
606 
607 
608 /*
609  * Read raw X/Y coordinates from the ADC.
610  * XXX: protect accesses to SCPDR?
611  */
612 static void
613 j6x0tp_get_raw_xy(int *rawxp, int *rawyp)
614 {
615 	uint8_t scpdr;
616 
617 	/* Y axis */
618 	scpdr = _reg_read_1(SH7709_SCPDR);
619 	scpdr |=  SCPDR_TP_SCAN_ENABLE;
620 	scpdr &= ~SCPDR_TP_SCAN_Y; /* pull low to scan */
621 	_reg_write_1(SH7709_SCPDR, scpdr);
622 	delay(10);
623 
624 	*rawyp = adc_sample_channel(ADC_CHANNEL_TP_Y);
625 
626 	/* X axis */
627 	scpdr = _reg_read_1(SH7709_SCPDR);
628 	scpdr |=  SCPDR_TP_SCAN_Y;
629 	scpdr &= ~SCPDR_TP_SCAN_X; /* pull low to scan */
630 	_reg_write_1(SH7709_SCPDR, scpdr);
631 	delay(10);
632 
633 	*rawxp = adc_sample_channel(ADC_CHANNEL_TP_X);
634 
635 	/* restore SCPDR */
636 	scpdr = _reg_read_1(SH7709_SCPDR);
637 	scpdr |=  SCPDR_TP_SCAN_X;
638 	scpdr &= ~SCPDR_TP_SCAN_ENABLE;
639 	_reg_write_1(SH7709_SCPDR, scpdr);
640 }
641 
642 
643 /*
644  * Check if the (rawx, rawy) is inside one of the 4 hard icons.
645  * Return the icon number 1..4, or 0 if not inside an icon.
646  */
647 static int
648 j6x0tp_get_hard_icon(int rawx, int rawy)
649 {
650 	if (rawx <= J6X0TP_FB_RIGHT)
651 		return (0);
652 
653 	if (rawy < J6X0TP_HARD_ICON_MAX_Y(1))
654 		return (1);
655 	else if (rawy < J6X0TP_HARD_ICON_MAX_Y(2))
656 		return (2);
657 	else if (rawy < J6X0TP_HARD_ICON_MAX_Y(3))
658 		return (3);
659 	else
660 		return (4);
661 }
662 
663 
664 static int
665 j6x0tp_wsmouse_ioctl(void *self, u_long cmd, caddr_t data, int flag,
666 		     struct lwp *l)
667 {
668 	struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self;
669 
670 	return hpc_tpanel_ioctl(&sc->sc_tpcalib, cmd, data, flag, l);
671 }
672 
673 
674 static int
675 j6x0tp_wskbd_ioctl(void *self, u_long cmd, caddr_t data, int flag,
676 		     struct lwp *l)
677 {
678 	/* struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self; */
679 
680 	switch (cmd) {
681 	case WSKBDIO_GTYPE:
682 		*(int *)data = WSKBD_TYPE_HPC_BTN; /* may be use new type? */
683 		return (0);
684 
685 	case WSKBDIO_GETLEDS:
686 		*(int *)data = 0;
687 		return (0);
688 
689 	default:
690 		return (EPASSTHROUGH);
691 	}
692 }
693 
694 
695 static void
696 j6x0tp_wskbd_set_leds(void *self, int leds)
697 {
698 
699 	/* nothing to do*/
700 	return;
701 }
702