xref: /netbsd-src/sys/arch/hpcarm/dev/j720tp.c (revision 7433666e375b3ac4cc764df5a6726be98bc1cdd5)
1 /*	$NetBSD: j720tp.c,v 1.15 2023/12/20 14:50:02 thorpej Exp $	*/
2 
3 /*-
4  * Copyright (c) 2006 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by IWAMOTO Toshihiro and Peter Postma.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 /* Jornada 720 touch-panel driver. */
33 
34 #include <sys/cdefs.h>
35 __KERNEL_RCSID(0, "$NetBSD: j720tp.c,v 1.15 2023/12/20 14:50:02 thorpej Exp $");
36 
37 #ifdef _KERNEL_OPT
38 #include "opt_j720tp.h"
39 #include "opt_wsdisplay_compat.h"
40 #endif
41 
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/device.h>
45 #include <sys/kernel.h>
46 #include <sys/ioctl.h>
47 #include <sys/callout.h>
48 #include <sys/sysctl.h>
49 
50 #include <machine/platid.h>
51 #include <machine/platid_mask.h>
52 
53 #include <arm/sa11x0/sa11x0_var.h>
54 #include <arm/sa11x0/sa11x0_gpioreg.h>
55 #include <arm/sa11x0/sa11x0_ppcreg.h>
56 #include <arm/sa11x0/sa11x0_sspreg.h>
57 
58 #include <dev/wscons/wsconsio.h>
59 #include <dev/wscons/wsmousevar.h>
60 #include <dev/wscons/wskbdvar.h>
61 #include <dev/wscons/wsksymvar.h>
62 #include <dev/wscons/wsksymdef.h>
63 #include <dev/hpc/hpctpanelvar.h>
64 
65 #include <hpcarm/dev/j720sspvar.h>
66 
67 #ifdef WSDISPLAY_COMPAT_RAWKBD
68 #include <dev/hpc/pckbd_encode.h>
69 #endif
70 
71 #define arraysize(ary)	(sizeof(ary) / sizeof(ary[0]))
72 
73 #ifdef J720TP_DEBUG
74 int j720tp_debug = 0;
75 #define DPRINTF(arg)		if (j720tp_debug) aprint_normal arg
76 #define DPRINTFN(n, arg)	if (j720tp_debug >= (n)) aprint_normal arg
77 #else
78 #define DPRINTF(arg)		/* nothing */
79 #define DPRINTFN(n, arg)	/* nothing */
80 #endif
81 
82 struct j720tp_softc {
83 	device_t		sc_dev;
84 
85 #define J720TP_WSMOUSE_ENABLED	0x01
86 #define J720TP_WSKBD_ENABLED	0x02
87 	int			sc_enabled;
88 	int			sc_hard_icon;
89 #ifdef WSDISPLAY_COMPAT_RAWKBD
90 	int			sc_rawkbd;
91 #endif
92 
93 	struct callout		sc_tpcallout;
94 	struct j720ssp_softc	*sc_ssp;
95 
96 	device_t		sc_wsmousedev;
97 	device_t		sc_wskbddev;
98 
99 	struct tpcalib_softc	sc_tpcalib;
100 };
101 
102 static int	j720tp_match(device_t, cfdata_t, void *);
103 static void	j720tp_attach(device_t, device_t, void *);
104 
105 static int	j720tp_wsmouse_enable(void *);
106 static int	j720tp_wsmouse_ioctl(void *, u_long, void *, int,
107 			struct lwp *);
108 static void	j720tp_wsmouse_disable(void *);
109 
110 static int	j720tp_wskbd_enable(void *, int);
111 static void	j720tp_wskbd_set_leds(void *, int);
112 static int	j720tp_wskbd_ioctl(void *, u_long, void *, int, struct lwp *);
113 
114 static void	j720tp_enable_intr(struct j720tp_softc *);
115 static void	j720tp_disable_intr(struct j720tp_softc *);
116 static int	j720tp_intr(void *);
117 static int	j720tp_get_rawxy(struct j720tp_softc *, int *, int *);
118 static int	j720tp_get_hard_icon(struct j720tp_softc *, int, int);
119 static void	j720tp_wsmouse_input(struct j720tp_softc *, int, int);
120 static void	j720tp_wsmouse_callout(void *);
121 static void	j720tp_wskbd_input(struct j720tp_softc *, u_int);
122 static void	j720tp_wskbd_callout(void *);
123 
124 const struct wsmouse_accessops j720tp_wsmouse_accessops = {
125 	j720tp_wsmouse_enable,
126 	j720tp_wsmouse_ioctl,
127 	j720tp_wsmouse_disable
128 };
129 
130 static const struct wsmouse_calibcoords j720tp_default_calib = {
131 	0, 0, 639, 239,
132 	4,
133 	{{ 988,  80,   0,   0 },
134 	 {  88,  84, 639,   0 },
135 	 { 988, 927,   0, 239 },
136 	 {  88, 940, 639, 239 }}
137 };
138 
139 const struct wskbd_accessops j720tp_wskbd_accessops = {
140 	j720tp_wskbd_enable,
141 	j720tp_wskbd_set_leds,
142 	j720tp_wskbd_ioctl
143 };
144 
145 #ifndef J720TP_SETTINGS_ICON_KEYSYM
146 #define J720TP_SETTINGS_ICON_KEYSYM	KS_Home
147 #endif
148 #ifndef J720TP_BACKUP_ICON_KEYSYM
149 #define J720TP_BACKUP_ICON_KEYSYM	KS_Prior
150 #endif
151 #ifndef J720TP_DIALUP_ICON_KEYSYM
152 #define J720TP_DIALUP_ICON_KEYSYM	KS_Next
153 #endif
154 #ifndef J720TP_MEDIA_ICON_KEYSYM
155 #define J720TP_MEDIA_ICON_KEYSYM	KS_End
156 #endif
157 
158 /* Max Y value of the n'th hard icon. */
159 #define J720TP_HARD_ICON_MAX_Y(n) \
160 	(((j720tp_hard_icon_bottom - j720tp_hard_icon_top) / 4) * (n)) + \
161 	j720tp_hard_icon_top
162 
163 /* Default raw X/Y values of the hard icon area. */
164 static int j720tp_hard_icon_left = 70;
165 static int j720tp_hard_icon_right = 20;
166 static int j720tp_hard_icon_top = 70;
167 static int j720tp_hard_icon_bottom = 940;
168 
169 /* Maps the icon number to a raw keycode. */
170 static const int j720tp_wskbd_keys[] = {
171 	/* Icon 1 */ 199,
172 	/* Icon 2 */ 201,
173 	/* Icon 3 */ 209,
174 	/* Icon 4 */ 207
175 };
176 
177 static const keysym_t j720tp_wskbd_keydesc[] = {
178 	KS_KEYCODE(199), J720TP_SETTINGS_ICON_KEYSYM,
179 	KS_KEYCODE(201), J720TP_BACKUP_ICON_KEYSYM,
180 	KS_KEYCODE(209), J720TP_DIALUP_ICON_KEYSYM,
181 	KS_KEYCODE(207), J720TP_MEDIA_ICON_KEYSYM
182 };
183 
184 const struct wscons_keydesc j720tp_wskbd_keydesctab[] = {
185 	{ KB_US, 0,
186 	  sizeof(j720tp_wskbd_keydesc) / sizeof(keysym_t),
187 	  j720tp_wskbd_keydesc
188 	},
189 	{ 0, 0, 0, 0 }
190 };
191 
192 const struct wskbd_mapdata j720tp_wskbd_keymapdata = {
193 	j720tp_wskbd_keydesctab, KB_US
194 };
195 
196 CFATTACH_DECL_NEW(j720tp, sizeof(struct j720tp_softc),
197     j720tp_match, j720tp_attach, NULL, NULL);
198 
199 
200 static int
j720tp_match(device_t parent,cfdata_t cf,void * aux)201 j720tp_match(device_t parent, cfdata_t cf, void *aux)
202 {
203 
204 	if (!platid_match(&platid, &platid_mask_MACH_HP_JORNADA_7XX))
205 		return 0;
206 	if (strcmp(cf->cf_name, "j720tp") != 0)
207 		return 0;
208 
209 	return 1;
210 }
211 
212 static void
j720tp_attach(device_t parent,device_t self,void * aux)213 j720tp_attach(device_t parent, device_t self, void *aux)
214 {
215 	struct j720tp_softc *sc = device_private(self);
216 	struct wsmousedev_attach_args wsma;
217 	struct wskbddev_attach_args wska;
218 
219 	aprint_normal("\n");
220 
221 	sc->sc_dev = self;
222 	sc->sc_ssp = device_private(parent);
223 	sc->sc_enabled = 0;
224 	sc->sc_hard_icon = 0;
225 #ifdef WSDISPLAY_COMPAT_RAWKBD
226 	sc->sc_rawkbd = 0;
227 #endif
228 
229 	/* Touch-panel as a pointing device. */
230 	wsma.accessops = &j720tp_wsmouse_accessops;
231 	wsma.accesscookie = sc;
232 
233 	sc->sc_wsmousedev = config_found(self, &wsma, wsmousedevprint,
234 	    CFARGS(.iattr = "wsmousedev"));
235 	if (sc->sc_wsmousedev == NULL)
236 		return;
237 
238 	/* Initialize calibration, set default parameters. */
239 	tpcalib_init(&sc->sc_tpcalib);
240 	tpcalib_ioctl(&sc->sc_tpcalib, WSMOUSEIO_SCALIBCOORDS,
241 	    __UNCONST(&j720tp_default_calib), 0, 0);
242 
243 	callout_init(&sc->sc_tpcallout, 0);
244 
245 	j720tp_wsmouse_disable(sc);
246 
247 	/* On-screen "hard icons" as a keyboard device. */
248 	wska.console = 0;
249 	wska.keymap = &j720tp_wskbd_keymapdata;
250 	wska.accessops = &j720tp_wskbd_accessops;
251 	wska.accesscookie = sc;
252 
253 	sc->sc_wskbddev = config_found(self, &wska, wskbddevprint,
254 	    CFARGS(.iattr = "wskbddev"));
255 
256 	/* Setup touch-panel interrupt. */
257 	sa11x0_intr_establish(0, 9, 1, IPL_TTY, j720tp_intr, sc);
258 }
259 
260 static int
j720tp_wsmouse_enable(void * self)261 j720tp_wsmouse_enable(void *self)
262 {
263 	struct j720tp_softc *sc = self;
264 	int s;
265 
266 	s = spltty();
267 
268 	j720tp_enable_intr(sc);
269 
270 	sc->sc_enabled |= J720TP_WSMOUSE_ENABLED;
271 
272 	splx(s);
273 	return 0;
274 }
275 
276 static int
j720tp_wsmouse_ioctl(void * self,u_long cmd,void * data,int flag,struct lwp * l)277 j720tp_wsmouse_ioctl(void *self, u_long cmd, void *data, int flag,
278     struct lwp *l)
279 {
280 	struct j720tp_softc *sc = self;
281 
282 	return hpc_tpanel_ioctl(&sc->sc_tpcalib, cmd, data, flag, l);
283 }
284 
285 static void
j720tp_wsmouse_disable(void * self)286 j720tp_wsmouse_disable(void *self)
287 {
288 	struct j720tp_softc *sc = self;
289 	int s;
290 
291 	s = spltty();
292 
293 	j720tp_disable_intr(sc);
294 	callout_stop(&sc->sc_tpcallout);
295 
296 	sc->sc_enabled &= ~J720TP_WSMOUSE_ENABLED;
297 
298 	splx(s);
299 }
300 
301 static int
j720tp_wskbd_enable(void * self,int on)302 j720tp_wskbd_enable(void *self, int on)
303 {
304 	struct j720tp_softc *sc = self;
305 	int s;
306 
307 	s = spltty();
308 	sc->sc_enabled |= J720TP_WSKBD_ENABLED;
309 	splx(s);
310 
311 	return 0;
312 }
313 
314 static void
j720tp_wskbd_set_leds(void * self,int leds)315 j720tp_wskbd_set_leds(void *self, int leds)
316 {
317 	/* nothing to do */
318 }
319 
320 static int
j720tp_wskbd_ioctl(void * self,u_long cmd,void * data,int flag,struct lwp * l)321 j720tp_wskbd_ioctl(void *self, u_long cmd, void *data, int flag,
322     struct lwp *l)
323 {
324 #ifdef WSDISPLAY_COMPAT_RAWKBD
325 	struct j720tp_softc *sc = self;
326 #endif
327 
328 	switch (cmd) {
329 	case WSKBDIO_GTYPE:
330 		*(int *)data = WSKBD_TYPE_HPC_BTN;
331 		return 0;
332 	case WSKBDIO_GETLEDS:
333 		*(int *)data = 0;
334 		return 0;
335 #ifdef WSDISPLAY_COMPAT_RAWKBD
336 	case WSKBDIO_SETMODE:
337 		sc->sc_rawkbd = (*(int *)data == WSKBD_RAW);
338 		return 0;
339 #endif
340 	}
341 
342 	return EPASSTHROUGH;
343 }
344 
345 /*
346  * Enable touch-panel interrupt.  Must be called at spltty().
347  */
348 static void
j720tp_enable_intr(struct j720tp_softc * sc)349 j720tp_enable_intr(struct j720tp_softc *sc)
350 {
351 	struct j720ssp_softc *ssp = sc->sc_ssp;
352 	uint32_t er;
353 
354 	er = bus_space_read_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_FER);
355 	er |= 1 << 9;
356 	bus_space_write_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_FER, er);
357 }
358 
359 /*
360  * Disable touch-panel interrupt.  Must be called at spltty().
361  */
362 static void
j720tp_disable_intr(struct j720tp_softc * sc)363 j720tp_disable_intr(struct j720tp_softc *sc)
364 {
365 	struct j720ssp_softc *ssp = sc->sc_ssp;
366 	uint32_t er;
367 
368 	er = bus_space_read_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_FER);
369 	er &= ~(1 << 9);
370 	bus_space_write_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_FER, er);
371 }
372 
373 static int
j720tp_intr(void * arg)374 j720tp_intr(void *arg)
375 {
376 	struct j720tp_softc *sc = arg;
377 	struct j720ssp_softc *ssp = sc->sc_ssp;
378 	int rawx, rawy;
379 
380 	bus_space_write_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_EDR, 1 << 9);
381 
382 	if (!(sc->sc_enabled & J720TP_WSMOUSE_ENABLED)) {
383 		DPRINTF(("j720tp_intr: !sc_enabled\n"));
384 		return 0;
385 	}
386 
387 	j720tp_disable_intr(sc);
388 
389 	if (j720tp_get_rawxy(sc, &rawx, &rawy)) {
390 		sc->sc_hard_icon = j720tp_get_hard_icon(sc, rawx, rawy);
391 
392 		if (sc->sc_hard_icon > 0) {
393 			j720tp_wskbd_input(sc, WSCONS_EVENT_KEY_DOWN);
394 			callout_reset(&sc->sc_tpcallout, hz / 32,
395 			    j720tp_wskbd_callout, sc);
396 		} else {
397 			j720tp_wsmouse_input(sc, rawx, rawy);
398 			callout_reset(&sc->sc_tpcallout, hz / 32,
399 			    j720tp_wsmouse_callout, sc);
400 		}
401 	}
402 
403 	return 1;
404 }
405 
406 static int
j720tp_get_rawxy(struct j720tp_softc * sc,int * rawx,int * rawy)407 j720tp_get_rawxy(struct j720tp_softc *sc, int *rawx, int *rawy)
408 {
409 	struct j720ssp_softc *ssp = sc->sc_ssp;
410 	int buf[8], data, i;
411 
412 	bus_space_write_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_PCR, 0x2000000);
413 
414 	/* Send read touch-panel command. */
415 	if (j720ssp_readwrite(ssp, 1, 0xa0, &data, 100) < 0 || data != 0x11) {
416 		DPRINTF(("j720tp_get_rawxy: no dummy received\n"));
417 		goto out;
418 	}
419 
420 	for (i = 0; i < 8; i++) {
421 		if (j720ssp_readwrite(ssp, 0, 0x11, &data, 100) < 0)
422 			goto out;
423 		buf[i] = data;
424 	}
425 
426 	bus_space_write_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_PSR, 0x2000000);
427 
428 	buf[6] <<= 8;
429 	buf[7] <<= 8;
430 	for (i = 0; i < 3; i++) {
431 		buf[i] |= buf[6] & 0x300;
432 		buf[6] >>= 2;
433 		buf[i + 3] |= buf[7] & 0x300;
434 		buf[7] >>= 2;
435 	}
436 
437 	DPRINTFN(2, ("j720tp_get_rawxy: %d:%d:%d:%d:%d:%d:%d:%d\n",
438 	    buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6], buf[7]));
439 
440 	*rawx = buf[1];
441 	*rawy = buf[4];
442 
443 	return 1;
444 out:
445 	bus_space_write_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_PSR, 0x2000000);
446 
447 	/* reset SSP */
448 	bus_space_write_4(ssp->sc_iot, ssp->sc_ssph, SASSP_CR0, 0x307);
449 	delay(100);
450 	bus_space_write_4(ssp->sc_iot, ssp->sc_ssph, SASSP_CR0, 0x387);
451 
452 	DPRINTF(("j720tp_get_rawxy: error %x\n", data));
453 	return 0;
454 }
455 
456 static int
j720tp_get_hard_icon(struct j720tp_softc * sc,int rawx,int rawy)457 j720tp_get_hard_icon(struct j720tp_softc *sc, int rawx, int rawy)
458 {
459 	int icon = 0;
460 
461 	if (!(sc->sc_enabled & J720TP_WSKBD_ENABLED))
462 		return 0;
463 	/* Check if the touch was in the hard icons area. */
464 	if (rawx > j720tp_hard_icon_left)
465 		return 0;
466 
467 	if (rawy < J720TP_HARD_ICON_MAX_Y(1))
468 		icon = 1;
469 	else if (rawy < J720TP_HARD_ICON_MAX_Y(2))
470 		icon = 2;
471 	else if (rawy < J720TP_HARD_ICON_MAX_Y(3))
472 		icon = 3;
473 	else if (rawy < J720TP_HARD_ICON_MAX_Y(4))
474 		icon = 4;
475 
476 	return icon;
477 }
478 
479 static void
j720tp_wsmouse_input(struct j720tp_softc * sc,int rawx,int rawy)480 j720tp_wsmouse_input(struct j720tp_softc *sc, int rawx, int rawy)
481 {
482 	int x, y;
483 
484 	tpcalib_trans(&sc->sc_tpcalib, rawx, rawy, &x, &y);
485 	wsmouse_input(sc->sc_wsmousedev, 1, x, y, 0, 0,
486 	    WSMOUSE_INPUT_ABSOLUTE_X | WSMOUSE_INPUT_ABSOLUTE_Y);
487 }
488 
489 static void
j720tp_wsmouse_callout(void * arg)490 j720tp_wsmouse_callout(void *arg)
491 {
492 	struct j720tp_softc *sc = arg;
493 	struct j720ssp_softc *ssp = sc->sc_ssp;
494 	int rawx, rawy, s;
495 
496 	s = spltty();
497 
498 	if (!(sc->sc_enabled & J720TP_WSMOUSE_ENABLED)) {
499 		DPRINTF(("j720tp_wsmouse_callout: !sc_enabled\n"));
500 		splx(s);
501 		return;
502 	}
503 
504 	if (bus_space_read_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_PLR) & (1<<9)) {
505 		wsmouse_input(sc->sc_wsmousedev, 0, 0, 0, 0, 0, 0);
506 		j720tp_enable_intr(sc);
507 	} else {
508 		if (j720tp_get_rawxy(sc, &rawx, &rawy))
509 			j720tp_wsmouse_input(sc, rawx, rawy);
510 		callout_schedule(&sc->sc_tpcallout, hz / 32);
511 	}
512 
513 	splx(s);
514 }
515 
516 static void
j720tp_wskbd_input(struct j720tp_softc * sc,u_int evtype)517 j720tp_wskbd_input(struct j720tp_softc *sc, u_int evtype)
518 {
519 	int key = j720tp_wskbd_keys[sc->sc_hard_icon - 1];
520 
521 #ifdef WSDISPLAY_COMPAT_RAWKBD
522 	if (sc->sc_rawkbd) {
523 		int n;
524 		u_char data[16];
525 
526 		n = pckbd_encode(evtype, key, data);
527 		wskbd_rawinput(sc->sc_wskbddev, data, n);
528 	} else
529 #endif
530 		wskbd_input(sc->sc_wskbddev, evtype, key);
531 }
532 
533 static void
j720tp_wskbd_callout(void * arg)534 j720tp_wskbd_callout(void *arg)
535 {
536 	struct j720tp_softc *sc = arg;
537 	struct j720ssp_softc *ssp = sc->sc_ssp;
538 	int s;
539 
540 	s = spltty();
541 
542 	if (!sc->sc_enabled) {
543 		DPRINTF(("j720tp_wskbd_callout: !sc_enabled\n"));
544 		splx(s);
545 		return;
546 	}
547 
548 	if (bus_space_read_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_PLR) & (1<<9)) {
549 		j720tp_wskbd_input(sc, WSCONS_EVENT_KEY_UP);
550 		j720tp_enable_intr(sc);
551 	} else {
552 		callout_schedule(&sc->sc_tpcallout, hz / 32);
553 	}
554 
555 	splx(s);
556 }
557 
558 SYSCTL_SETUP(sysctl_j720tp, "sysctl j720tp subtree setup")
559 {
560 	const struct sysctlnode *rnode;
561 	int rc;
562 
563 	if ((rc = sysctl_createv(clog, 0, NULL, &rnode,
564 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, "j720tp",
565 	    SYSCTL_DESCR("Jornada 720 touch panel controls"),
566 	    NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0)
567 		goto err;
568 
569 #ifdef J720TP_DEBUG
570 	if ((rc = sysctl_createv(clog, 0, &rnode, NULL,
571 	    CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "debug",
572 	    SYSCTL_DESCR("Verbosity of debugging messages"),
573 	    NULL, 0, &j720tp_debug, 0, CTL_CREATE, CTL_EOL)) != 0)
574 		goto err;
575 #endif /* J720TP_DEBUG */
576 
577 	if ((rc = sysctl_createv(clog, 0, &rnode, &rnode,
578 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, "hard_icons",
579 	    SYSCTL_DESCR("Touch panel hard icons controls"),
580 	    NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0)
581 		goto err;
582 
583 	if ((rc = sysctl_createv(clog, 0, &rnode, NULL,
584 	    CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "left",
585 	    SYSCTL_DESCR("Raw left X value of the hard icon area"),
586 	    NULL, 0, &j720tp_hard_icon_left, 0, CTL_CREATE, CTL_EOL)) != 0)
587 		goto err;
588 
589 	if ((rc = sysctl_createv(clog, 0, &rnode, NULL,
590 	    CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "right",
591 	    SYSCTL_DESCR("Raw right X value of the hard icon area"),
592 	    NULL, 0, &j720tp_hard_icon_right, 0, CTL_CREATE, CTL_EOL)) != 0)
593 		goto err;
594 
595 	if ((rc = sysctl_createv(clog, 0, &rnode, NULL,
596 	    CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "top",
597 	    SYSCTL_DESCR("Raw top Y value of the hard icon area"),
598 	    NULL, 0, &j720tp_hard_icon_top, 0, CTL_CREATE, CTL_EOL)) != 0)
599 		goto err;
600 
601 	if ((rc = sysctl_createv(clog, 0, &rnode, NULL,
602 	    CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "bottom",
603 	    SYSCTL_DESCR("Raw bottom Y value of the hard icon area"),
604 	    NULL, 0, &j720tp_hard_icon_bottom, 0, CTL_CREATE, CTL_EOL)) != 0)
605 		goto err;
606 
607 	return;
608 err:
609 	aprint_normal("%s: sysctl_createv failed (rc = %d)\n", __func__, rc);
610 }
611