xref: /netbsd-src/sys/arch/hpcsh/dev/j6x0tp.c (revision 4d6fc14bc9b0c5bf3e30be318c143ee82cadd108)
1 /*	$NetBSD: j6x0tp.c,v 1.24 2021/04/24 23:36:38 thorpej 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 1.24 2021/04/24 23:36:38 thorpej 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 
40 #include "opt_j6x0tp.h"
41 
42 #include <dev/wscons/wsconsio.h>
43 #include <dev/wscons/wsmousevar.h>
44 #include <dev/wscons/wskbdvar.h>
45 #include <dev/wscons/wsksymvar.h>
46 #include <dev/wscons/wsksymdef.h>
47 #include <dev/hpc/hpctpanelvar.h>
48 
49 #include <machine/platid.h>
50 #include <machine/platid_mask.h>
51 
52 #include <machine/intr.h>
53 
54 #include <sh3/exception.h>
55 #include <sh3/intcreg.h>
56 #include <sh3/pfcreg.h>
57 #include <sh3/adcreg.h>
58 
59 #include <sh3/dev/adcvar.h>
60 
61 
62 #if 0 /* XXX: disabled in favor of local version that uses printf_nolog */
63 #define DPRINTF_ENABLE
64 #define DPRINTF_DEBUG	j6x0tp_debug
65 #define DPRINTF_LEVEL	0
66 #include <machine/debug.h>
67 #else
68 #ifdef J6X0TP_DEBUG
69 volatile int j6x0tp_debug = 0;
70 #define DPRINTF_PRINTF		printf_nolog
71 #define DPRINTF(arg)		if (j6x0tp_debug) DPRINTF_PRINTF arg
72 #define DPRINTFN(n, arg)	if (j6x0tp_debug > (n)) DPRINTF_PRINTF arg
73 #else
74 #define DPRINTF(arg)		((void)0)
75 #define DPRINTFN(n, arg)	((void)0)
76 #endif
77 #endif
78 
79 
80 /*
81  * PFC bits pertinent to Jornada 6x0 touchpanel
82  */
83 #define PHDR_TP_PEN_DOWN	0x08
84 
85 #define SCPDR_TP_SCAN_ENABLE	0x20
86 #define SCPDR_TP_SCAN_Y		0x02
87 #define SCPDR_TP_SCAN_X		0x01
88 
89 /*
90  * A/D converter channels to get x/y from
91  */
92 #define ADC_CHANNEL_TP_Y	1
93 #define ADC_CHANNEL_TP_X	2
94 
95 /*
96  * Default (read: my device :) raw X/Y values for framebuffer edges.
97  * XXX: defopt these?
98  */
99 #define J6X0TP_FB_LEFT		 38
100 #define J6X0TP_FB_RIGHT		950
101 #define J6X0TP_FB_TOP		 80
102 #define J6X0TP_FB_BOTTOM	900
103 
104 /*
105  * Bottom of the n'th hard icon (n = 1..4)
106  */
107 #define J6X0TP_HARD_ICON_MAX_Y(n) \
108 	(J6X0TP_FB_TOP + ((J6X0TP_FB_BOTTOM - J6X0TP_FB_TOP) / 4) * (n))
109 
110 
111 struct j6x0tp_softc {
112 	device_t sc_dev;
113 
114 #define J6X0TP_WSMOUSE_ENABLED	0x01
115 #define J6X0TP_WSKBD_ENABLED	0x02
116 	int sc_enabled;
117 
118 	int sc_hard_icon;
119 
120 	struct callout sc_touch_ch;
121 
122 	device_t sc_wsmousedev;
123 	device_t sc_wskbddev;
124 
125 	struct tpcalib_softc sc_tpcalib; /* calibration info for wsmouse */
126 };
127 
128 
129 /* config machinery */
130 static int	j6x0tp_match(device_t, cfdata_t, void *);
131 static void	j6x0tp_attach(device_t, device_t, void *);
132 
133 /* wsmouse accessops */
134 static int	j6x0tp_wsmouse_enable(void *);
135 static int	j6x0tp_wsmouse_ioctl(void *, u_long, void *, int, lwp_t *);
136 static void	j6x0tp_wsmouse_disable(void *);
137 
138 /* wskbd accessops */
139 static int	j6x0tp_wskbd_enable(void *, int);
140 static void	j6x0tp_wskbd_set_leds(void *, int);
141 static int	j6x0tp_wskbd_ioctl(void *, u_long, void *, int, lwp_t *);
142 
143 /* internal driver routines */
144 static void	j6x0tp_enable(struct j6x0tp_softc *);
145 static void	j6x0tp_disable(struct j6x0tp_softc *);
146 static int	j6x0tp_enable_child(struct j6x0tp_softc *, int, int);
147 static int	j6x0tp_intr(void *);
148 static void	j6x0tp_start_polling(void *);
149 static void	j6x0tp_stop_polling(struct j6x0tp_softc *);
150 static void	j6x0tp_callout_wsmouse(void *);
151 static void	j6x0tp_callout_wskbd(void *);
152 static void	j6x0tp_wsmouse_input(struct j6x0tp_softc *, int, int);
153 static void	j6x0tp_get_raw_xy(int *, int *);
154 static int	j6x0tp_get_hard_icon(int, int);
155 
156 
157 static const struct wsmouse_accessops j6x0tp_accessops = {
158 	j6x0tp_wsmouse_enable,
159 	j6x0tp_wsmouse_ioctl,
160 	j6x0tp_wsmouse_disable
161 };
162 
163 static const struct wsmouse_calibcoords j6x0tp_default_calib = {
164 	0, 0, 639, 239,
165 	4,
166 	{{ J6X0TP_FB_LEFT,  J6X0TP_FB_TOP,      0,   0 },
167 	 { J6X0TP_FB_RIGHT, J6X0TP_FB_TOP,    639,   0 },
168 	 { J6X0TP_FB_LEFT,  J6X0TP_FB_BOTTOM,   0, 239 },
169 	 { J6X0TP_FB_RIGHT, J6X0TP_FB_BOTTOM, 639, 239 }}
170 };
171 
172 static const struct wskbd_accessops j6x0tp_wskbd_accessops = {
173 	j6x0tp_wskbd_enable,
174 	j6x0tp_wskbd_set_leds,
175 	j6x0tp_wskbd_ioctl
176 };
177 
178 
179 #ifndef J6X0TP_SETTINGS_ICON_KEYSYM
180 #define J6X0TP_SETTINGS_ICON_KEYSYM	KS_Home
181 #endif
182 #ifndef J6X0TP_PGUP_ICON_KEYSYM
183 #define J6X0TP_PGUP_ICON_KEYSYM		KS_Prior
184 #endif
185 #ifndef J6X0TP_PGDN_ICON_KEYSYM
186 #define J6X0TP_PGDN_ICON_KEYSYM		KS_Next
187 #endif
188 #ifndef J6X0TP_SWITCH_ICON_KEYSYM
189 #define J6X0TP_SWITCH_ICON_KEYSYM	KS_End
190 #endif
191 
192 static const keysym_t j6x0tp_wskbd_keydesc[] = {
193 	KS_KEYCODE(1), J6X0TP_SETTINGS_ICON_KEYSYM,
194 	KS_KEYCODE(2), J6X0TP_PGUP_ICON_KEYSYM,
195 	KS_KEYCODE(3), J6X0TP_PGDN_ICON_KEYSYM,
196 	KS_KEYCODE(4), J6X0TP_SWITCH_ICON_KEYSYM
197 };
198 
199 static const struct wscons_keydesc j6x0tp_wskbd_keydesctab[] = {
200 	{ KB_US, 0,
201 	  sizeof(j6x0tp_wskbd_keydesc)/sizeof(keysym_t),
202 	  j6x0tp_wskbd_keydesc
203 	},
204 	{0, 0, 0, 0}
205 };
206 
207 static const struct wskbd_mapdata j6x0tp_wskbd_keymapdata = {
208         j6x0tp_wskbd_keydesctab, KB_US
209 };
210 
211 
212 CFATTACH_DECL_NEW(j6x0tp, sizeof(struct j6x0tp_softc),
213     j6x0tp_match, j6x0tp_attach, NULL, NULL);
214 
215 
216 static int
217 j6x0tp_match(device_t parent, cfdata_t cf, void *aux)
218 {
219 
220 	/*
221 	 * XXX: platid_mask_MACH_HP_LX also matches 360LX.  It's not
222 	 * confirmed whether touch panel in 360LX is connected this
223 	 * way.  We may need to regroup platid masks.
224 	 */
225 	if (!platid_match(&platid, &platid_mask_MACH_HP_JORNADA_6XX)
226 	    && !platid_match(&platid, &platid_mask_MACH_HP_LX))
227 		return (0);
228 
229 	if (strcmp(cf->cf_name, "j6x0tp") != 0)
230 		return (0);
231 
232 	return (1);
233 }
234 
235 
236 static void
237 j6x0tp_attach(device_t parent, device_t self, void *aux)
238 {
239 	struct j6x0tp_softc *sc;
240 	struct wsmousedev_attach_args wsma;
241 	struct wskbddev_attach_args wska;
242 
243 	aprint_naive("\n");
244 	aprint_normal("\n");
245 
246 	sc = device_private(self);
247 	sc->sc_dev = self;
248 
249 	sc->sc_enabled = 0;
250 	sc->sc_hard_icon = 0;
251 
252 	/* touch-panel as a pointing device */
253 	wsma.accessops = &j6x0tp_accessops;
254 	wsma.accesscookie = sc;
255 
256 	sc->sc_wsmousedev = config_found(self, &wsma, wsmousedevprint,
257 	    CFARG_IATTR, "wsmousedev",
258 	    CFARG_EOL);
259 	if (sc->sc_wsmousedev == NULL)
260 		return;
261 
262 	/* on-screen "hard icons" as a keyboard device */
263 	wska.console = 0;
264 	wska.keymap = &j6x0tp_wskbd_keymapdata;
265 	wska.accessops = &j6x0tp_wskbd_accessops;
266 	wska.accesscookie = sc;
267 
268 	sc->sc_wskbddev = config_found(self, &wska, wskbddevprint,
269 	    CFARG_IATTR, "wskbddev",
270 	    CFARG_EOL);
271 
272 	/* init calibration, set default parameters */
273 	tpcalib_init(&sc->sc_tpcalib);
274 	tpcalib_ioctl(&sc->sc_tpcalib, WSMOUSEIO_SCALIBCOORDS,
275 		      (void *)__UNCONST(&j6x0tp_default_calib), 0, 0);
276 
277 	/* used when in polling mode */
278 	callout_init(&sc->sc_touch_ch, 0);
279 
280 	/* establish interrupt handler, but disable until opened */
281 	intc_intr_establish(SH7709_INTEVT2_IRQ3, IST_EDGE, IPL_TTY,
282 			    j6x0tp_intr, sc);
283 	intc_intr_disable(SH7709_INTEVT2_IRQ3);
284 
285 	if (!pmf_device_register(self, NULL, NULL))
286 		aprint_error_dev(self, "unable to establish power handler\n");
287 }
288 
289 
290 /*
291  * Enable touch panel:  we start in interrupt mode.
292  * Must be called as spltty().
293  */
294 static void
295 j6x0tp_enable(struct j6x0tp_softc *sc)
296 {
297 
298 	DPRINTFN(2, ("%s: enable\n", device_xname(sc->sc_dev)));
299 	intc_intr_enable(SH7709_INTEVT2_IRQ3);
300 }
301 
302 
303 /*
304  * Disable touch panel: disable interrupt, cancel pending callout.
305  * Must be called as spltty().
306  */
307 static void
308 j6x0tp_disable(struct j6x0tp_softc *sc)
309 {
310 
311 	DPRINTFN(2, ("%s: disable\n", device_xname(sc->sc_dev)));
312 	intc_intr_disable(SH7709_INTEVT2_IRQ3);
313 	callout_stop(&sc->sc_touch_ch);
314 }
315 
316 
317 static int
318 j6x0tp_enable_child(struct j6x0tp_softc *sc, int child, int on)
319 {
320 	int s = spltty();
321 
322 	if (on) {
323 		if (!sc->sc_enabled)
324 			j6x0tp_enable(sc);
325 		sc->sc_enabled |= child;
326 	} else {
327 		sc->sc_enabled &= ~child;
328 		if (!sc->sc_enabled)
329 			j6x0tp_disable(sc);
330 	}
331 
332 	splx(s);
333 	return (0);
334 }
335 
336 
337 static int
338 j6x0tp_wsmouse_enable(void *arg)
339 {
340 	struct j6x0tp_softc *sc = arg;
341 
342 	DPRINTFN(1, ("%s: wsmouse enable\n", device_xname(sc->sc_dev)));
343 	return (j6x0tp_enable_child(sc, J6X0TP_WSMOUSE_ENABLED, 1));
344 }
345 
346 
347 static void
348 j6x0tp_wsmouse_disable(void *arg)
349 {
350 	struct j6x0tp_softc *sc = arg;
351 
352 	DPRINTFN(1, ("%s: wsmouse disable\n", device_xname(sc->sc_dev)));
353 	j6x0tp_enable_child(sc, J6X0TP_WSMOUSE_ENABLED, 0);
354 }
355 
356 
357 static int
358 j6x0tp_wskbd_enable(void *arg, int on)
359 {
360 	struct j6x0tp_softc *sc = arg;
361 
362 	DPRINTFN(1, ("%s: wskbd %sable\n", device_xname(sc->sc_dev),
363 		     on ? "en" : "dis"));
364 	return (j6x0tp_enable_child(sc, J6X0TP_WSKBD_ENABLED, on));
365 }
366 
367 
368 static int
369 j6x0tp_intr(void *arg)
370 {
371 	struct j6x0tp_softc *sc = arg;
372 
373 	uint8_t irr0;
374 	uint8_t phdr, touched;
375 	unsigned int steady, tremor_timeout;
376 
377 	irr0 = _reg_read_1(SH7709_IRR0);
378 	if ((irr0 & IRR0_IRQ3) == 0) {
379 #ifdef DIAGNOSTIC
380 		printf("%s: irr0 %02x?\n", device_xname(sc->sc_dev), irr0);
381 #endif
382 		return (0);
383 	}
384 
385 	if (!sc->sc_enabled) {
386 		DPRINTFN(1, ("%s: intr: !sc_enabled\n",
387 			     device_xname(sc->sc_dev)));
388 		intc_intr_disable(SH7709_INTEVT2_IRQ3);
389 		goto served;
390 	}
391 
392 
393 	/*
394 	 * Number of times the "touched" bit should be read
395 	 * consecutively.
396 	 */
397 #	define TREMOR_THRESHOLD 0x300
398 
399 	steady = 0;
400 	tremor_timeout = TREMOR_THRESHOLD * 16;	/* XXX: arbitrary */
401 	touched = PHDR_TP_PEN_DOWN;	/* we start with "touched" state */
402 
403 	do {
404 		phdr = _reg_read_1(SH7709_PHDR);
405 
406 		if ((phdr & PHDR_TP_PEN_DOWN) == touched)
407 			++steady;
408 		else {
409 			steady = 0;
410 			touched = phdr & PHDR_TP_PEN_DOWN;
411 		}
412 
413 		if (--tremor_timeout == 0) {
414 			DPRINTF(("%s: tremor timeout!\n",
415 				 device_xname(sc->sc_dev)));
416 			goto served;
417 		}
418 	} while (steady < TREMOR_THRESHOLD);
419 
420 	if (touched) {
421 		intc_intr_disable(SH7709_INTEVT2_IRQ3);
422 
423 		/*
424 		 * ADC readings are not stable yet, so schedule
425 		 * callout instead of accessing ADC from the interrupt
426 		 * handler only to immediately delay().
427 		 */
428 		callout_reset(&sc->sc_touch_ch, hz/32,
429 			      j6x0tp_start_polling, sc);
430 	} else
431 		DPRINTFN(1, ("%s: tremor\n", device_xname(sc->sc_dev)));
432   served:
433 	/* clear the interrupt (XXX: protect access?) */
434 	_reg_write_1(SH7709_IRR0, irr0 & ~IRR0_IRQ3);
435 
436 	return (1);
437 }
438 
439 
440 /*
441  * Called from the interrupt handler at spltty() upon first touch.
442  * Decide if we are going to report this touch as a mouse click/drag
443  * or as a key press.
444  */
445 static void
446 j6x0tp_start_polling(void *arg)
447 {
448 	struct j6x0tp_softc *sc = arg;
449 	uint8_t phdr;
450 	int do_mouse, do_kbd;
451 	int rawx, rawy;
452 	int icon;
453 
454 	phdr = _reg_read_1(SH7709_PHDR);
455 	if ((phdr & PHDR_TP_PEN_DOWN) == 0) {
456 		DPRINTFN(2, ("%s: start: pen is not down\n",
457 			     device_xname(sc->sc_dev)));
458 		j6x0tp_stop_polling(sc);
459 	}
460 
461 	j6x0tp_get_raw_xy(&rawx, &rawy);
462 	DPRINTFN(2, ("%s: start: %4d %4d -> ",
463 		     device_xname(sc->sc_dev), rawx, rawy));
464 
465 	do_mouse = sc->sc_enabled & J6X0TP_WSMOUSE_ENABLED;
466 #ifdef J6X0TP_WSMOUSE_EXCLUSIVE
467 	if (do_mouse)
468 		do_kbd = 0;
469 	else
470 #endif
471 		do_kbd = sc->sc_enabled & J6X0TP_WSKBD_ENABLED;
472 
473 	icon = 0;
474 	if (do_kbd)
475 		icon = j6x0tp_get_hard_icon(rawx, rawy);
476 
477 	if (icon != 0) {
478 		DPRINTFN(2, ("icon %d\n", icon));
479 		sc->sc_hard_icon = icon;
480 		wskbd_input(sc->sc_wskbddev, WSCONS_EVENT_KEY_DOWN, icon);
481 		callout_reset(&sc->sc_touch_ch, hz/32,
482 			      j6x0tp_callout_wskbd, sc);
483 	} else if (do_mouse) {
484 		DPRINTFN(2, ("mouse\n"));
485 		j6x0tp_wsmouse_input(sc, rawx, rawy);
486 		callout_reset(&sc->sc_touch_ch, hz/32,
487 			      j6x0tp_callout_wsmouse, sc);
488 	} else {
489 		DPRINTFN(2, ("ignore\n"));
490 		j6x0tp_stop_polling(sc);
491 	}
492 }
493 
494 
495 /*
496  * Re-enable touch panel interrupt.
497  * Called as spltty() when polling code detects pen-up.
498  */
499 static void
500 j6x0tp_stop_polling(struct j6x0tp_softc *sc)
501 {
502 	uint8_t irr0;
503 
504 	DPRINTFN(2, ("%s: stop\n", device_xname(sc->sc_dev)));
505 
506 	/* clear pending interrupt signal before re-enabling the interrupt */
507 	irr0 = _reg_read_1(SH7709_IRR0);
508 	if ((irr0 & IRR0_IRQ3) != 0)
509 		_reg_write_1(SH7709_IRR0, irr0 & ~IRR0_IRQ3);
510 
511 	intc_intr_enable(SH7709_INTEVT2_IRQ3);
512 }
513 
514 
515 /*
516  * We are reporting this touch as a keyboard event.
517  * Poll touch screen waiting for pen-up.
518  */
519 static void
520 j6x0tp_callout_wskbd(void *arg)
521 {
522 	struct j6x0tp_softc *sc = arg;
523 	uint8_t phdr;
524 	int s;
525 
526 	s = spltty();
527 
528 	if (!sc->sc_enabled) {
529 		DPRINTFN(1, ("%s: wskbd callout: !sc_enabled\n",
530 			     device_xname(sc->sc_dev)));
531 		splx(s);
532 		return;
533 	}
534 
535 	phdr = _reg_read_1(SH7709_PHDR);
536 	if ((phdr & PHDR_TP_PEN_DOWN) != 0) {
537 		/*
538 		 * Pen is still down, continue polling.  Wskbd's
539 		 * auto-repeat takes care of repeating the key.
540 		 */
541 		callout_schedule(&sc->sc_touch_ch, hz/32);
542 	} else {
543 		wskbd_input(sc->sc_wskbddev,
544 			    WSCONS_EVENT_KEY_UP, sc->sc_hard_icon);
545 		j6x0tp_stop_polling(sc);
546 	}
547 	splx(s);
548 }
549 
550 
551 /*
552  * We are reporting this touch as a mouse click/drag.
553  */
554 static void
555 j6x0tp_callout_wsmouse(void *arg)
556 {
557 	struct j6x0tp_softc *sc = arg;
558 	uint8_t phdr;
559 	int rawx, rawy;
560 	int s;
561 
562 	s = spltty();
563 
564 	if (!sc->sc_enabled) {
565 		DPRINTFN(1, ("%s: wsmouse callout: !sc_enabled\n",
566 			     device_xname(sc->sc_dev)));
567 		splx(s);
568 		return;
569 	}
570 
571 	phdr = _reg_read_1(SH7709_PHDR);
572 	if ((phdr & PHDR_TP_PEN_DOWN) != 0) {
573 		j6x0tp_get_raw_xy(&rawx, &rawy);
574 		j6x0tp_wsmouse_input(sc, rawx, rawy); /* mouse dragged */
575 		callout_schedule(&sc->sc_touch_ch, hz/32);
576 	} else {
577 		wsmouse_input(sc->sc_wsmousedev, 0, 0, 0, 0, 0, /* button up */
578 			      WSMOUSE_INPUT_DELTA);
579 		j6x0tp_stop_polling(sc);
580 	}
581 	splx(s);
582 }
583 
584 
585 /*
586  * Report mouse click/drag.
587  */
588 static void
589 j6x0tp_wsmouse_input(struct j6x0tp_softc *sc, int rawx, int rawy)
590 {
591 	int x, y;
592 
593 	tpcalib_trans(&sc->sc_tpcalib, rawx, rawy, &x, &y);
594 
595 	DPRINTFN(3, ("%s: %4d %4d -> %3d %3d\n",
596 		     device_xname(sc->sc_dev), rawx, rawy, x, y));
597 
598 	wsmouse_input(sc->sc_wsmousedev,
599 			1,	/* button */
600 			x, y, 0, 0,
601 			WSMOUSE_INPUT_ABSOLUTE_X | WSMOUSE_INPUT_ABSOLUTE_Y);
602 }
603 
604 
605 /*
606  * Read raw X/Y coordinates from the ADC.
607  * XXX: protect accesses to SCPDR?
608  */
609 static void
610 j6x0tp_get_raw_xy(int *rawxp, int *rawyp)
611 {
612 	uint8_t scpdr;
613 
614 	/* Y axis */
615 	scpdr = _reg_read_1(SH7709_SCPDR);
616 	scpdr |=  SCPDR_TP_SCAN_ENABLE;
617 	scpdr &= ~SCPDR_TP_SCAN_Y; /* pull low to scan */
618 	_reg_write_1(SH7709_SCPDR, scpdr);
619 	delay(10);
620 
621 	*rawyp = adc_sample_channel(ADC_CHANNEL_TP_Y);
622 
623 	/* X axis */
624 	scpdr = _reg_read_1(SH7709_SCPDR);
625 	scpdr |=  SCPDR_TP_SCAN_Y;
626 	scpdr &= ~SCPDR_TP_SCAN_X; /* pull low to scan */
627 	_reg_write_1(SH7709_SCPDR, scpdr);
628 	delay(10);
629 
630 	*rawxp = adc_sample_channel(ADC_CHANNEL_TP_X);
631 
632 	/* restore SCPDR */
633 	scpdr = _reg_read_1(SH7709_SCPDR);
634 	scpdr |=  SCPDR_TP_SCAN_X;
635 	scpdr &= ~SCPDR_TP_SCAN_ENABLE;
636 	_reg_write_1(SH7709_SCPDR, scpdr);
637 }
638 
639 
640 /*
641  * Check if the (rawx, rawy) is inside one of the 4 hard icons.
642  * Return the icon number 1..4, or 0 if not inside an icon.
643  */
644 static int
645 j6x0tp_get_hard_icon(int rawx, int rawy)
646 {
647 	if (rawx <= J6X0TP_FB_RIGHT)
648 		return (0);
649 
650 	if (rawy < J6X0TP_HARD_ICON_MAX_Y(1))
651 		return (1);
652 	else if (rawy < J6X0TP_HARD_ICON_MAX_Y(2))
653 		return (2);
654 	else if (rawy < J6X0TP_HARD_ICON_MAX_Y(3))
655 		return (3);
656 	else
657 		return (4);
658 }
659 
660 
661 static int
662 j6x0tp_wsmouse_ioctl(void *arg, u_long cmd, void *data, int flag, lwp_t *l)
663 {
664 	struct j6x0tp_softc *sc = arg;
665 
666 	return hpc_tpanel_ioctl(&sc->sc_tpcalib, cmd, data, flag, l);
667 }
668 
669 
670 static int
671 j6x0tp_wskbd_ioctl(void *arg, u_long cmd, void *data, int flag, lwp_t *l)
672 {
673 	/* struct j6x0tp_softc *sc = arg; */
674 
675 	switch (cmd) {
676 	case WSKBDIO_GTYPE:
677 		*(int *)data = WSKBD_TYPE_HPC_BTN; /* may be use new type? */
678 		return (0);
679 
680 	case WSKBDIO_GETLEDS:
681 		*(int *)data = 0;
682 		return (0);
683 
684 	default:
685 		return (EPASSTHROUGH);
686 	}
687 }
688 
689 
690 static void
691 j6x0tp_wskbd_set_leds(void *arg, int leds)
692 {
693 
694 	/* nothing to do*/
695 	return;
696 }
697