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j6x0tp.c revision 1.15
      1 /*	$NetBSD: j6x0tp.c,v 1.15 2006/11/12 19:00:42 plunky 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 1.15 2006/11/12 19:00:42 plunky 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 #define J6X0TP_DEBUG
     63 #if 0 /* XXX: disabled in favor of local version that uses printf_nolog */
     64 #define DPRINTF_ENABLE
     65 #define DPRINTF_DEBUG	j6x0tp_debug
     66 #define DPRINTF_LEVEL	0
     67 #include <machine/debug.h>
     68 #else
     69 #ifdef J6X0TP_DEBUG
     70 volatile int j6x0tp_debug = 0;
     71 #define DPRINTF_PRINTF		printf_nolog
     72 #define DPRINTF(arg)		if (j6x0tp_debug) DPRINTF_PRINTF arg
     73 #define DPRINTFN(n, arg)	if (j6x0tp_debug > (n)) DPRINTF_PRINTF arg
     74 #else
     75 #define DPRINTF(arg)		((void)0)
     76 #define DPRINTFN(n, arg)	((void)0)
     77 #endif
     78 #endif
     79 
     80 
     81 /*
     82  * PFC bits pertinent to Jornada 6x0 touchpanel
     83  */
     84 #define PHDR_TP_PEN_DOWN	0x08
     85 
     86 #define SCPDR_TP_SCAN_ENABLE	0x20
     87 #define SCPDR_TP_SCAN_Y		0x02
     88 #define SCPDR_TP_SCAN_X		0x01
     89 
     90 /*
     91  * A/D converter channels to get x/y from
     92  */
     93 #define ADC_CHANNEL_TP_Y	1
     94 #define ADC_CHANNEL_TP_X	2
     95 
     96 /*
     97  * Default (read: my device :) raw X/Y values for framebuffer edges.
     98  * XXX: defopt these?
     99  */
    100 #define J6X0TP_FB_LEFT		 38
    101 #define J6X0TP_FB_RIGHT		950
    102 #define J6X0TP_FB_TOP		 80
    103 #define J6X0TP_FB_BOTTOM	900
    104 
    105 /*
    106  * Bottom of the n'th hard icon (n = 1..4)
    107  */
    108 #define J6X0TP_HARD_ICON_MAX_Y(n) \
    109 	(J6X0TP_FB_TOP + ((J6X0TP_FB_BOTTOM - J6X0TP_FB_TOP) / 4) * (n))
    110 
    111 
    112 struct j6x0tp_softc {
    113 	struct device sc_dev;
    114 
    115 #define J6X0TP_WSMOUSE_ENABLED	0x01
    116 #define J6X0TP_WSKBD_ENABLED	0x02
    117 	int sc_enabled;
    118 
    119 	int sc_hard_icon;
    120 
    121 	struct callout sc_touch_ch;
    122 
    123 	struct device *sc_wsmousedev;
    124 	struct device *sc_wskbddev;
    125 
    126 	struct tpcalib_softc sc_tpcalib; /* calibration info for wsmouse */
    127 };
    128 
    129 
    130 /* config machinery */
    131 static int	j6x0tp_match(struct device *, struct cfdata *, void *);
    132 static void	j6x0tp_attach(struct device *, struct device *, void *);
    133 
    134 /* wsmouse accessops */
    135 static int	j6x0tp_wsmouse_enable(void *);
    136 static int	j6x0tp_wsmouse_ioctl(void *, u_long, caddr_t, int,
    137 				     struct lwp *);
    138 static void	j6x0tp_wsmouse_disable(void *);
    139 
    140 /* wskbd accessops */
    141 static int	j6x0tp_wskbd_enable(void *, int);
    142 static void	j6x0tp_wskbd_set_leds(void *, int);
    143 static int	j6x0tp_wskbd_ioctl(void *, u_long, caddr_t, int,
    144 				   struct lwp *);
    145 
    146 /* internal driver routines */
    147 static void	j6x0tp_enable(struct j6x0tp_softc *);
    148 static void	j6x0tp_disable(struct j6x0tp_softc *);
    149 static int	j6x0tp_set_enable(struct j6x0tp_softc *, int, int);
    150 static int	j6x0tp_intr(void *);
    151 static void	j6x0tp_start_polling(void *);
    152 static void	j6x0tp_stop_polling(struct j6x0tp_softc *);
    153 static void	j6x0tp_callout_wsmouse(void *);
    154 static void	j6x0tp_callout_wskbd(void *);
    155 static void	j6x0tp_wsmouse_input(struct j6x0tp_softc *, int, int);
    156 static void	j6x0tp_get_raw_xy(int *, int *);
    157 static int	j6x0tp_get_hard_icon(int, int);
    158 
    159 
    160 static const struct wsmouse_accessops j6x0tp_accessops = {
    161 	j6x0tp_wsmouse_enable,
    162 	j6x0tp_wsmouse_ioctl,
    163 	j6x0tp_wsmouse_disable
    164 };
    165 
    166 static const struct wsmouse_calibcoords j6x0tp_default_calib = {
    167 	0, 0, 639, 239,
    168 	4,
    169 	{{ J6X0TP_FB_LEFT,  J6X0TP_FB_TOP,      0,   0 },
    170 	 { J6X0TP_FB_RIGHT, J6X0TP_FB_TOP,    639,   0 },
    171 	 { J6X0TP_FB_LEFT,  J6X0TP_FB_BOTTOM,   0, 239 },
    172 	 { J6X0TP_FB_RIGHT, J6X0TP_FB_BOTTOM, 639, 239 }}
    173 };
    174 
    175 static const struct wskbd_accessops j6x0tp_wskbd_accessops = {
    176 	j6x0tp_wskbd_enable,
    177 	j6x0tp_wskbd_set_leds,
    178 	j6x0tp_wskbd_ioctl
    179 };
    180 
    181 
    182 #ifndef J6X0TP_SETTINGS_ICON_KEYSYM
    183 #define J6X0TP_SETTINGS_ICON_KEYSYM	KS_Home
    184 #endif
    185 #ifndef J6X0TP_PGUP_ICON_KEYSYM
    186 #define J6X0TP_PGUP_ICON_KEYSYM		KS_Prior
    187 #endif
    188 #ifndef J6X0TP_PGDN_ICON_KEYSYM
    189 #define J6X0TP_PGDN_ICON_KEYSYM		KS_Next
    190 #endif
    191 #ifndef J6X0TP_SWITCH_ICON_KEYSYM
    192 #define J6X0TP_SWITCH_ICON_KEYSYM	KS_End
    193 #endif
    194 
    195 static const keysym_t j6x0tp_wskbd_keydesc[] = {
    196 	KS_KEYCODE(1), J6X0TP_SETTINGS_ICON_KEYSYM,
    197 	KS_KEYCODE(2), J6X0TP_PGUP_ICON_KEYSYM,
    198 	KS_KEYCODE(3), J6X0TP_PGDN_ICON_KEYSYM,
    199 	KS_KEYCODE(4), J6X0TP_SWITCH_ICON_KEYSYM
    200 };
    201 
    202 static const struct wscons_keydesc j6x0tp_wskbd_keydesctab[] = {
    203 	{ KB_US, 0,
    204 	  sizeof(j6x0tp_wskbd_keydesc)/sizeof(keysym_t),
    205 	  j6x0tp_wskbd_keydesc
    206 	},
    207 	{0, 0, 0, 0}
    208 };
    209 
    210 static const struct wskbd_mapdata j6x0tp_wskbd_keymapdata = {
    211         j6x0tp_wskbd_keydesctab, KB_US
    212 };
    213 
    214 
    215 CFATTACH_DECL(j6x0tp, sizeof(struct j6x0tp_softc),
    216     j6x0tp_match, j6x0tp_attach, NULL, NULL);
    217 
    218 
    219 static int
    220 j6x0tp_match(struct device *parent, struct cfdata *cf, void *aux)
    221 {
    222 
    223 	/*
    224 	 * XXX: platid_mask_MACH_HP_LX also matches 360LX.  It's not
    225 	 * confirmed whether touch panel in 360LX is connected this
    226 	 * way.  We may need to regroup platid masks.
    227 	 */
    228 	if (!platid_match(&platid, &platid_mask_MACH_HP_JORNADA_6XX)
    229 	    && !platid_match(&platid, &platid_mask_MACH_HP_LX))
    230 		return (0);
    231 
    232 	if (strcmp(cf->cf_name, "j6x0tp") != 0)
    233 		return (0);
    234 
    235 	return (1);
    236 }
    237 
    238 
    239 /*
    240  * Attach the touch panel driver and its ws* children.
    241  *
    242  * Note that we have to use submatch to distinguish between children
    243  * because ws{kbd,mouse}_match match unconditionally.
    244  */
    245 static void
    246 j6x0tp_attach(struct device *parent, struct device *self, void *aux)
    247 {
    248 	struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self;
    249 	struct wsmousedev_attach_args wsma;
    250 	struct wskbddev_attach_args wska;
    251 
    252 	printf("\n");
    253 
    254 	sc->sc_enabled = 0;
    255 	sc->sc_hard_icon = 0;
    256 
    257 	/* touch-panel as a pointing device */
    258 	wsma.accessops = &j6x0tp_accessops;
    259 	wsma.accesscookie = sc;
    260 
    261 	sc->sc_wsmousedev = config_found_ia(self, "wsmousedev", &wsma,
    262 					    wsmousedevprint);
    263 	if (sc->sc_wsmousedev == NULL)
    264 		return;
    265 
    266 	/* on-screen "hard icons" as a keyboard device */
    267 	wska.console = 0;
    268 	wska.keymap = &j6x0tp_wskbd_keymapdata;
    269 	wska.accessops = &j6x0tp_wskbd_accessops;
    270 	wska.accesscookie = sc;
    271 
    272 	sc->sc_wskbddev = config_found_ia(self, "wskbddev", &wska,
    273 					  wskbddevprint);
    274 
    275 	/* init calibration, set default parameters */
    276 	tpcalib_init(&sc->sc_tpcalib);
    277 	tpcalib_ioctl(&sc->sc_tpcalib, WSMOUSEIO_SCALIBCOORDS,
    278 		      (caddr_t)__UNCONST(&j6x0tp_default_calib), 0, 0);
    279 
    280 	/* used when in polling mode */
    281 	callout_init(&sc->sc_touch_ch);
    282 
    283 	/* establish interrupt handler, but disable until opened */
    284 	intc_intr_establish(SH7709_INTEVT2_IRQ3, IST_EDGE, IPL_TTY,
    285 			    j6x0tp_intr, sc);
    286 	intc_intr_disable(SH7709_INTEVT2_IRQ3);
    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", sc->sc_dev.dv_xname));
    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", sc->sc_dev.dv_xname));
    312 	intc_intr_disable(SH7709_INTEVT2_IRQ3);
    313 	callout_stop(&sc->sc_touch_ch);
    314 }
    315 
    316 
    317 static int
    318 j6x0tp_set_enable(struct j6x0tp_softc *sc, int on, int child)
    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 *self)
    339 {
    340 	struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self;
    341 
    342 	DPRINTFN(1, ("%s: wsmouse enable\n", sc->sc_dev.dv_xname));
    343 	return (j6x0tp_set_enable(sc, 1, J6X0TP_WSMOUSE_ENABLED));
    344 }
    345 
    346 
    347 static void
    348 j6x0tp_wsmouse_disable(void *self)
    349 {
    350 	struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self;
    351 
    352 	DPRINTFN(1, ("%s: wsmouse disable\n", sc->sc_dev.dv_xname));
    353 	j6x0tp_set_enable(sc, 0, J6X0TP_WSMOUSE_ENABLED);
    354 }
    355 
    356 
    357 static int
    358 j6x0tp_wskbd_enable(void *self, int on)
    359 {
    360 	struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self;
    361 
    362 	DPRINTFN(1, ("%s: wskbd %sable\n", sc->sc_dev.dv_xname,
    363 		     on ? "en" : "dis"));
    364 	return (j6x0tp_set_enable(sc, on, J6X0TP_WSKBD_ENABLED));
    365 }
    366 
    367 
    368 static int
    369 j6x0tp_intr(void *self)
    370 {
    371 	struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self;
    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", sc->sc_dev.dv_xname, irr0);
    381 #endif
    382 		return (0);
    383 	}
    384 
    385 	if (!sc->sc_enabled) {
    386 		DPRINTFN(1, ("%s: intr: !sc_enabled\n", sc->sc_dev.dv_xname));
    387 		intc_intr_disable(SH7709_INTEVT2_IRQ3);
    388 		goto served;
    389 	}
    390 
    391 
    392 	/*
    393 	 * Number of times the "touched" bit should be read
    394 	 * consecutively.
    395 	 */
    396 #	define TREMOR_THRESHOLD 0x300
    397 
    398 	steady = 0;
    399 	tremor_timeout = TREMOR_THRESHOLD * 16;	/* XXX: arbitrary */
    400 	touched = PHDR_TP_PEN_DOWN;	/* we start with "touched" state */
    401 
    402 	do {
    403 		phdr = _reg_read_1(SH7709_PHDR);
    404 
    405 		if ((phdr & PHDR_TP_PEN_DOWN) == touched)
    406 			++steady;
    407 		else {
    408 			steady = 0;
    409 			touched = phdr & PHDR_TP_PEN_DOWN;
    410 		}
    411 
    412 		if (--tremor_timeout == 0) {
    413 			DPRINTF(("%s: tremor timeout!\n",
    414 				 sc->sc_dev.dv_xname));
    415 			goto served;
    416 		}
    417 	} while (steady < TREMOR_THRESHOLD);
    418 
    419 	if (touched) {
    420 		intc_intr_disable(SH7709_INTEVT2_IRQ3);
    421 
    422 		/*
    423 		 * ADC readings are not stable yet, so schedule
    424 		 * callout instead of accessing ADC from the interrupt
    425 		 * handler only to immediately delay().
    426 		 */
    427 		callout_reset(&sc->sc_touch_ch, hz/32,
    428 			      j6x0tp_start_polling, sc);
    429 	} else
    430 		DPRINTFN(1, ("%s: tremor\n", sc->sc_dev.dv_xname));
    431   served:
    432 	/* clear the interrupt (XXX: protect access?) */
    433 	_reg_write_1(SH7709_IRR0, irr0 & ~IRR0_IRQ3);
    434 
    435 	return (1);
    436 }
    437 
    438 
    439 /*
    440  * Called from the interrupt handler at spltty() upon first touch.
    441  * Decide if we are going to report this touch as a mouse click/drag
    442  * or as a key press.
    443  */
    444 static void
    445 j6x0tp_start_polling(void *self)
    446 {
    447 	struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self;
    448 	uint8_t phdr;
    449 	int do_mouse, do_kbd;
    450 	int rawx, rawy;
    451 	int icon;
    452 
    453 	phdr = _reg_read_1(SH7709_PHDR);
    454 	if ((phdr & PHDR_TP_PEN_DOWN) == 0) {
    455 		DPRINTFN(2, ("%s: start: pen is not down\n",
    456 			     sc->sc_dev.dv_xname));
    457 		j6x0tp_stop_polling(sc);
    458 	}
    459 
    460 	j6x0tp_get_raw_xy(&rawx, &rawy);
    461 	DPRINTFN(2, ("%s: start: %4d %4d -> ",
    462 		     sc->sc_dev.dv_xname, rawx, rawy));
    463 
    464 	do_mouse = sc->sc_enabled & J6X0TP_WSMOUSE_ENABLED;
    465 #ifdef J6X0TP_WSMOUSE_EXCLUSIVE
    466 	if (do_mouse)
    467 		do_kbd = 0;
    468 	else
    469 #endif
    470 		do_kbd = sc->sc_enabled & J6X0TP_WSKBD_ENABLED;
    471 
    472 	icon = 0;
    473 	if (do_kbd)
    474 		icon = j6x0tp_get_hard_icon(rawx, rawy);
    475 
    476 	if (icon != 0) {
    477 		DPRINTFN(2, ("icon %d\n", icon));
    478 		sc->sc_hard_icon = icon;
    479 		wskbd_input(sc->sc_wskbddev, WSCONS_EVENT_KEY_DOWN, icon);
    480 		callout_reset(&sc->sc_touch_ch, hz/32,
    481 			      j6x0tp_callout_wskbd, sc);
    482 	} else if (do_mouse) {
    483 		DPRINTFN(2, ("mouse\n"));
    484 		j6x0tp_wsmouse_input(sc, rawx, rawy);
    485 		callout_reset(&sc->sc_touch_ch, hz/32,
    486 			      j6x0tp_callout_wsmouse, sc);
    487 	} else {
    488 		DPRINTFN(2, ("ignore\n"));
    489 		j6x0tp_stop_polling(sc);
    490 	}
    491 }
    492 
    493 
    494 /*
    495  * Re-enable touch panel interrupt.
    496  * Called as spltty() when polling code detects pen-up.
    497  */
    498 static void
    499 j6x0tp_stop_polling(struct j6x0tp_softc *sc)
    500 {
    501 	uint8_t irr0;
    502 
    503 	DPRINTFN(2, ("%s: stop\n", sc->sc_dev.dv_xname));
    504 
    505 	/* clear pending interrupt signal before re-enabling the interrupt */
    506 	irr0 = _reg_read_1(SH7709_IRR0);
    507 	if ((irr0 & IRR0_IRQ3) != 0)
    508 		_reg_write_1(SH7709_IRR0, irr0 & ~IRR0_IRQ3);
    509 
    510 	intc_intr_enable(SH7709_INTEVT2_IRQ3);
    511 }
    512 
    513 
    514 /*
    515  * We are reporting this touch as a keyboard event.
    516  * Poll touch screen waiting for pen-up.
    517  */
    518 static void
    519 j6x0tp_callout_wskbd(void *self)
    520 {
    521 	struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self;
    522 	uint8_t phdr;
    523 	int s;
    524 
    525 	s = spltty();
    526 
    527 	if (!sc->sc_enabled) {
    528 		DPRINTFN(1, ("%s: wskbd callout: !sc_enabled\n",
    529 			     sc->sc_dev.dv_xname));
    530 		splx(s);
    531 		return;
    532 	}
    533 
    534 	phdr = _reg_read_1(SH7709_PHDR);
    535 	if ((phdr & PHDR_TP_PEN_DOWN) != 0) {
    536 		/*
    537 		 * Pen is still down, continue polling.  Wskbd's
    538 		 * auto-repeat takes care of repeating the key.
    539 		 */
    540 		callout_schedule(&sc->sc_touch_ch, hz/32);
    541 	} else {
    542 		wskbd_input(sc->sc_wskbddev,
    543 			    WSCONS_EVENT_KEY_UP, sc->sc_hard_icon);
    544 		j6x0tp_stop_polling(sc);
    545 	}
    546 	splx(s);
    547 }
    548 
    549 
    550 /*
    551  * We are reporting this touch as a mouse click/drag.
    552  */
    553 static void
    554 j6x0tp_callout_wsmouse(void *self)
    555 {
    556 	struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self;
    557 	uint8_t phdr;
    558 	int rawx, rawy;
    559 	int s;
    560 
    561 	s = spltty();
    562 
    563 	if (!sc->sc_enabled) {
    564 		DPRINTFN(1, ("%s: wsmouse callout: !sc_enabled\n",
    565 			     sc->sc_dev.dv_xname));
    566 		splx(s);
    567 		return;
    568 	}
    569 
    570 	phdr = _reg_read_1(SH7709_PHDR);
    571 	if ((phdr & PHDR_TP_PEN_DOWN) != 0) {
    572 		j6x0tp_get_raw_xy(&rawx, &rawy);
    573 		j6x0tp_wsmouse_input(sc, rawx, rawy); /* mouse dragged */
    574 		callout_schedule(&sc->sc_touch_ch, hz/32);
    575 	} else {
    576 		wsmouse_input(sc->sc_wsmousedev, 0, 0, 0, 0, 0, /* button up */
    577 			      WSMOUSE_INPUT_DELTA);
    578 		j6x0tp_stop_polling(sc);
    579 	}
    580 	splx(s);
    581 }
    582 
    583 
    584 /*
    585  * Report mouse click/drag.
    586  */
    587 static void
    588 j6x0tp_wsmouse_input(struct j6x0tp_softc *sc, int rawx, int rawy)
    589 {
    590 	int x, y;
    591 
    592 	tpcalib_trans(&sc->sc_tpcalib, rawx, rawy, &x, &y);
    593 
    594 	DPRINTFN(3, ("%s: %4d %4d -> %3d %3d\n",
    595 		     sc->sc_dev.dv_xname, rawx, rawy, x, y));
    596 
    597 	wsmouse_input(sc->sc_wsmousedev,
    598 			1,	/* button */
    599 			x, y, 0, 0,
    600 			WSMOUSE_INPUT_ABSOLUTE_X | WSMOUSE_INPUT_ABSOLUTE_Y);
    601 }
    602 
    603 
    604 /*
    605  * Read raw X/Y coordinates from the ADC.
    606  * XXX: protect accesses to SCPDR?
    607  */
    608 static void
    609 j6x0tp_get_raw_xy(int *rawxp, int *rawyp)
    610 {
    611 	uint8_t scpdr;
    612 
    613 	/* Y axis */
    614 	scpdr = _reg_read_1(SH7709_SCPDR);
    615 	scpdr |=  SCPDR_TP_SCAN_ENABLE;
    616 	scpdr &= ~SCPDR_TP_SCAN_Y; /* pull low to scan */
    617 	_reg_write_1(SH7709_SCPDR, scpdr);
    618 	delay(10);
    619 
    620 	*rawyp = adc_sample_channel(ADC_CHANNEL_TP_Y);
    621 
    622 	/* X axis */
    623 	scpdr = _reg_read_1(SH7709_SCPDR);
    624 	scpdr |=  SCPDR_TP_SCAN_Y;
    625 	scpdr &= ~SCPDR_TP_SCAN_X; /* pull low to scan */
    626 	_reg_write_1(SH7709_SCPDR, scpdr);
    627 	delay(10);
    628 
    629 	*rawxp = adc_sample_channel(ADC_CHANNEL_TP_X);
    630 
    631 	/* restore SCPDR */
    632 	scpdr = _reg_read_1(SH7709_SCPDR);
    633 	scpdr |=  SCPDR_TP_SCAN_X;
    634 	scpdr &= ~SCPDR_TP_SCAN_ENABLE;
    635 	_reg_write_1(SH7709_SCPDR, scpdr);
    636 }
    637 
    638 
    639 /*
    640  * Check if the (rawx, rawy) is inside one of the 4 hard icons.
    641  * Return the icon number 1..4, or 0 if not inside an icon.
    642  */
    643 static int
    644 j6x0tp_get_hard_icon(int rawx, int rawy)
    645 {
    646 	if (rawx <= J6X0TP_FB_RIGHT)
    647 		return (0);
    648 
    649 	if (rawy < J6X0TP_HARD_ICON_MAX_Y(1))
    650 		return (1);
    651 	else if (rawy < J6X0TP_HARD_ICON_MAX_Y(2))
    652 		return (2);
    653 	else if (rawy < J6X0TP_HARD_ICON_MAX_Y(3))
    654 		return (3);
    655 	else
    656 		return (4);
    657 }
    658 
    659 
    660 static int
    661 j6x0tp_wsmouse_ioctl(void *self, u_long cmd, caddr_t data, int flag,
    662 		     struct lwp *l)
    663 {
    664 	struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self;
    665 
    666 	return hpc_tpanel_ioctl(&sc->sc_tpcalib, cmd, data, flag, l);
    667 }
    668 
    669 
    670 static int
    671 j6x0tp_wskbd_ioctl(void *self, u_long cmd, caddr_t data, int flag,
    672 		     struct lwp *l)
    673 {
    674 	/* struct j6x0tp_softc *sc = (struct j6x0tp_softc *)self; */
    675 
    676 	switch (cmd) {
    677 	case WSKBDIO_GTYPE:
    678 		*(int *)data = WSKBD_TYPE_HPC_BTN; /* may be use new type? */
    679 		return (0);
    680 
    681 	case WSKBDIO_GETLEDS:
    682 		*(int *)data = 0;
    683 		return (0);
    684 
    685 	default:
    686 		return (EPASSTHROUGH);
    687 	}
    688 }
    689 
    690 
    691 static void
    692 j6x0tp_wskbd_set_leds(void *self, int leds)
    693 {
    694 
    695 	/* nothing to do*/
    696 	return;
    697 }
    698