1 /*        $NetBSD: ucbtp.c,v 1.24 2023/09/10 15:18:51 andvar Exp $ */
2 
3 /*-
4  * Copyright (c) 2000, 2001 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by UCHIYAMA Yasushi.
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 /*
33  * Device driver for PHILIPS UCB1200 Advanced modem/audio analog front-end
34  *        Touch panel part.
35  */
36 
37 #include <sys/cdefs.h>
38 __KERNEL_RCSID(0, "$NetBSD: ucbtp.c,v 1.24 2023/09/10 15:18:51 andvar Exp $");
39 
40 #include "opt_use_poll.h"
41 
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/device.h>
45 
46 #include <machine/bus.h>
47 #include <machine/intr.h>
48 #include <machine/bootinfo.h> /* bootinfo */
49 
50 #include <dev/wscons/wsconsio.h>
51 #include <dev/wscons/wsmousevar.h>
52 
53 #include <dev/hpc/hpctpanelvar.h>
54 
55 #include <hpcmips/tx/tx39var.h>
56 #include <hpcmips/tx/tx39sibvar.h>
57 #include <hpcmips/tx/tx39sibreg.h>
58 #include <hpcmips/tx/tx39icureg.h>
59 
60 #include <hpcmips/dev/ucb1200var.h>
61 #include <hpcmips/dev/ucb1200reg.h>
62 
63 #include <hpcmips/tx/txsnd.h>
64 #include <dev/hpc/video_subr.h> /* debug */
65 
66 #ifdef UCBTPDEBUG
67 #define DPRINTF_ENABLE
68 #define DPRINTF_DEBUG         ucbtp_debug
69 #endif
70 #include <machine/debug.h>
71 
72 enum ucbts_stat {
73           UCBTS_STAT_DISABLE,
74           UCBTS_STAT_RELEASE,
75           UCBTS_STAT_TOUCH,
76           UCBTS_STAT_DRAG,
77 };
78 
79 #define UCBTS_POSX  1
80 #define UCBTS_POSY  2
81 #define UCBTS_PRESS 3
82 
83 #define UCBTS_PRESS_THRESHOLD 80
84 #define UCBTS_TAP_THRESHOLD   5
85 
86 enum ucbadc_state {
87 /* 0 */   UCBADC_IDLE,
88 /* 1 */   UCBADC_ADC_INIT,
89 /* 2 */   UCBADC_ADC_FINI,
90 /* 3 */   UCBADC_MEASUMENT_INIT,
91 /* 4 */   UCBADC_MEASUMENT_FINI,
92 /* 5 */   UCBADC_ADC_ENABLE,
93 /* 6 */   UCBADC_ADC_START0,
94 /* 7 */   UCBADC_ADC_START1,
95 /* 8 */   UCBADC_ADC_DATAREAD,
96 /* 9 */   UCBADC_ADC_DATAREAD_WAIT,
97 /*10 */   UCBADC_ADC_DISABLE,
98 /*11 */   UCBADC_ADC_INTRMODE,
99 /*12 */   UCBADC_ADC_INPUT,
100 /*13 */   UCBADC_INTR_ACK0,
101 /*14 */   UCBADC_INTR_ACK1,
102 /*15 */   UCBADC_INTR_ACK2,
103 /*16 */   UCBADC_REGREAD,
104 /*17 */   UCBADC_REGWRITE
105 };
106 
107 struct ucbtp_softc {
108           device_t sc_dev;
109           device_t sc_sib; /* parent (TX39 SIB module) */
110           device_t sc_ucb; /* parent (UCB1200 module) */
111           tx_chipset_tag_t sc_tc;
112 
113           enum ucbts_stat sc_stat;
114           int sc_polling;
115           int sc_polling_finish;
116           void *sc_pollh;
117 
118           struct tpcalib_softc sc_tpcalib;
119           int sc_calibrated;
120 
121           /* measurement value */
122           int sc_x, sc_y, sc_p;
123           int sc_ox, sc_oy;
124           int sc_xy_reverse; /* some platform pin connect interchanged */
125 
126           /*
127            * touch panel state machine
128            */
129           void *sm_ih; /* TX39 SIB subframe 0 interrupt handler */
130 
131           int sm_addr; /* UCB1200 register address */
132           u_int32_t sm_reg;  /* UCB1200 register data & TX39 SIB header */
133           int sm_tmpreg;
134 #define UCBADC_RETRY_DEFAULT            200
135           int sm_retry; /* retry counter */
136 
137           enum ucbadc_state sm_state;
138           int                 sm_measurement; /* X, Y, Pressure */
139 #define   UCBADC_MEASUREMENT_X                    0
140 #define   UCBADC_MEASUREMENT_Y                    1
141 #define   UCBADC_MEASUREMENT_PRESSURE   2
142           int sm_returnstate;
143 
144           int sm_read_state, sm_write_state;
145           int sm_writing;     /* writing state flag */
146           u_int32_t sm_write_val;       /* temporary buffer */
147 
148           int sm_rw_retry; /* retry counter for r/w */
149 
150           /* wsmouse */
151           device_t sc_wsmousedev;
152 };
153 
154 int       ucbtp_match(device_t, cfdata_t, void *);
155 void      ucbtp_attach(device_t, device_t, void *);
156 
157 int       ucbtp_sibintr(void *);
158 int       ucbtp_poll(void *);
159 int       ucbtp_adc_async(void *);
160 int       ucbtp_input(struct ucbtp_softc *);
161 int       ucbtp_busy(void *);
162 
163 int       ucbtp_enable(void *);
164 int       ucbtp_ioctl(void *, u_long, void *, int, struct lwp *);
165 void      ucbtp_disable(void *);
166 
167 CFATTACH_DECL_NEW(ucbtp, sizeof(struct ucbtp_softc),
168     ucbtp_match, ucbtp_attach, NULL, NULL);
169 
170 const struct wsmouse_accessops ucbtp_accessops = {
171           ucbtp_enable,
172           ucbtp_ioctl,
173           ucbtp_disable,
174 };
175 
176 /*
177  * XXX currently no calibration method. this is temporary hack.
178  */
179 #include <machine/platid.h>
180 
181 struct    wsmouse_calibcoords *calibration_sample_lookup(void);
182 int       ucbtp_calibration(struct ucbtp_softc *);
183 
184 struct calibration_sample_table {
185           platid_t  cst_platform;
186           struct wsmouse_calibcoords cst_sample;
187 } calibration_sample_table[] = {
188           {{{PLATID_WILD, PLATID_MACH_COMPAQ_C_8XX}},  /* uch machine */
189            { 0, 0, 639, 239, 5,
190              {{ 507, 510, 320, 120 },
191               { 898, 757,  40,  40 },
192               { 900, 255,  40, 200 },
193               { 109, 249, 600, 200 },
194               { 110, 753, 600,  40 }}}},
195 
196           {{{PLATID_WILD, PLATID_MACH_COMPAQ_C_2010}}, /* uch machine */
197            { 0, 0, 639, 239, 5,
198              {{ 506, 487, 320, 120 },
199               { 880, 250,  40,  40 },
200               { 880, 718,  40, 200 },
201               { 140, 726, 600, 200 },
202               { 137, 250, 600,  40 }}}},
203 
204           {{{PLATID_WILD, PLATID_MACH_SHARP_MOBILON_HC4100}}, /* uch machine */
205            { 0, 0, 639, 239, 5,
206              {{ 497, 501, 320, 120 },
207               { 752, 893,  40,  40 },
208               { 242, 891,  40, 200 },
209               { 241, 115, 600, 200 },
210               { 747, 101, 600,  40 }}}},
211 
212           {{{PLATID_WILD, PLATID_MACH_SHARP_TELIOS_HCVJ}}, /* uch machine */
213            { 0, 0, 799, 479, 5,
214              {{ 850, 150,   1,   1 },
215               { 850, 880,   1, 479 },
216               { 850, 880,   1, 479 },
217               {  85, 880, 799, 479 },
218               {  85, 150, 799,   1 }}}},
219 
220           {{{PLATID_UNKNOWN, PLATID_UNKNOWN}},
221            { 0, 0, 639, 239, 5,
222              {{0, 0, 0, 0},
223               {0, 0, 0, 0},
224               {0, 0, 0, 0},
225               {0, 0, 0, 0},
226               {0, 0, 0, 0}}}},
227 };
228 
229 struct wsmouse_calibcoords *
calibration_sample_lookup(void)230 calibration_sample_lookup(void)
231 {
232           struct calibration_sample_table *tab;
233           platid_mask_t mask;
234 
235           for (tab = calibration_sample_table;
236               tab->cst_platform.dw.dw1 != PLATID_UNKNOWN; tab++) {
237 
238                     mask = PLATID_DEREF(&tab->cst_platform);
239 
240                     if (platid_match(&platid, &mask)) {
241                               return (&tab->cst_sample);
242                     }
243           }
244 
245           return (0);
246 }
247 
248 int
ucbtp_calibration(struct ucbtp_softc * sc)249 ucbtp_calibration(struct ucbtp_softc *sc)
250 {
251           struct wsmouse_calibcoords *cs;
252 
253           if (sc->sc_tc->tc_videot)
254                     video_calibration_pattern(sc->sc_tc->tc_videot); /* debug */
255 
256           tpcalib_init(&sc->sc_tpcalib);
257 
258           if (!(cs = calibration_sample_lookup())) {
259                     DPRINTF("no calibration data");
260                     return (1);
261           }
262 
263           sc->sc_calibrated =
264               tpcalib_ioctl(&sc->sc_tpcalib, WSMOUSEIO_SCALIBCOORDS,
265                     (void *)cs, 0, 0) == 0 ? 1 : 0;
266 
267           if (!sc->sc_calibrated)
268                     printf("not ");
269           printf("calibrated");
270 
271           return (0);
272 }
273 
274 int
ucbtp_match(device_t parent,cfdata_t cf,void * aux)275 ucbtp_match(device_t parent, cfdata_t cf, void *aux)
276 {
277 
278           return (1);
279 }
280 
281 void
ucbtp_attach(device_t parent,device_t self,void * aux)282 ucbtp_attach(device_t parent, device_t self, void *aux)
283 {
284           struct ucb1200_attach_args *ucba = aux;
285           struct ucbtp_softc *sc = device_private(self);
286           struct wsmousedev_attach_args wsmaa;
287           tx_chipset_tag_t tc;
288 
289           sc->sc_dev = self;
290           tc = sc->sc_tc = ucba->ucba_tc;
291           sc->sc_sib = ucba->ucba_sib;
292           sc->sc_ucb = ucba->ucba_ucb;
293 
294           printf(": ");
295           /* touch panel interrupt */
296           tx_intr_establish(tc, MAKEINTR(1, TX39_INTRSTATUS1_SIBIRQPOSINT),
297               IST_EDGE, IPL_TTY, ucbtp_sibintr, sc);
298 
299           /* attempt to calibrate touch panel */
300           ucbtp_calibration(sc);
301 #ifdef TX392X /* hack for Telios HC-VJ1C */
302           sc->sc_xy_reverse = 1;
303 #endif
304 
305           printf("\n");
306 
307           wsmaa.accessops = &ucbtp_accessops;
308           wsmaa.accesscookie = sc;
309 
310           ucb1200_state_install(parent, ucbtp_busy, self, UCB1200_TP_MODULE);
311 
312           /*
313            * attach the wsmouse
314            */
315           sc->sc_wsmousedev = config_found(self, &wsmaa, wsmousedevprint,
316               CFARGS_NONE);
317 }
318 
319 int
ucbtp_busy(void * arg)320 ucbtp_busy(void *arg)
321 {
322           struct ucbtp_softc *sc = arg;
323 
324           return (sc->sm_state != UCBADC_IDLE);
325 }
326 
327 int
ucbtp_poll(void * arg)328 ucbtp_poll(void *arg)
329 {
330           struct ucbtp_softc *sc = arg;
331 
332           if (!ucb1200_state_idle(sc->sc_ucb)) /* subframe0 busy */
333                     return (POLL_CONT);
334 
335           if (sc->sc_polling_finish) {
336                     sc->sc_polling_finish = 0;
337                     return (POLL_END);
338           }
339 
340           /* execute A-D converter */
341           sc->sm_state = UCBADC_ADC_INIT;
342           ucbtp_adc_async(sc);
343 
344           return (POLL_CONT);
345 }
346 
347 int
ucbtp_sibintr(void * arg)348 ucbtp_sibintr(void *arg)
349 {
350           struct ucbtp_softc *sc = arg;
351 
352           sc->sc_stat = UCBTS_STAT_TOUCH;
353 
354           /* click! */
355           tx_sound_click(sc->sc_tc);
356 
357           /* invoke touch panel polling */
358           if (!sc->sc_polling) {
359                     sc->sc_pollh = tx39_poll_establish(sc->sc_tc, 1, IST_EDGE,
360                         ucbtp_poll, sc);
361                     if (!sc->sc_pollh) {
362                               printf("%s: can't poll\n", device_xname(sc->sc_dev));
363                     }
364           }
365 
366           /* don't acknoledge interrupt until polling finish */
367 
368           return (0);
369 }
370 
371 #define REGWRITE(addr, reg, ret) (                                              \
372           sc->sm_addr = (addr),                                                           \
373           sc->sm_reg = (reg),                                                   \
374           sc->sm_returnstate = (ret),                                           \
375           sc->sm_state = UCBADC_REGWRITE)
376 #define REGREAD(addr, ret) (                                                    \
377           sc->sm_addr = (addr),                                                           \
378           sc->sm_returnstate = (ret),                                           \
379           sc->sm_state = UCBADC_REGREAD)
380 
381 int
ucbtp_adc_async(void * arg)382 ucbtp_adc_async(void *arg)
383 {
384           struct ucbtp_softc *sc = arg;
385           tx_chipset_tag_t tc = sc->sc_tc;
386           txreg_t reg;
387           u_int16_t reg16;
388 
389           DPRINTFN(9, "state: %d\n", sc->sm_state);
390 
391           switch (sc->sm_state) {
392           default:
393                     panic("ucbtp_adc: invalid state %d", sc->sm_state);
394                     /* NOTREACHED */
395                     break;
396 
397           case UCBADC_IDLE:
398                     /* nothing to do */
399                     break;
400 
401           case UCBADC_ADC_INIT:
402                     sc->sc_polling++;
403                     sc->sc_stat = UCBTS_STAT_DRAG;
404                     /* enable heart beat of this state machine */
405                     sc->sm_ih = tx_intr_establish(
406                               tc,
407                               MAKEINTR(1, TX39_INTRSTATUS1_SIBSF0INT),
408                               IST_EDGE, IPL_TTY, ucbtp_adc_async, sc);
409 
410                     sc->sm_state = UCBADC_MEASUMENT_INIT;
411                     break;
412 
413           case UCBADC_ADC_FINI:
414                     /* disable heart beat of this state machine */
415                     tx_intr_disestablish(tc, sc->sm_ih);
416                     sc->sm_state = UCBADC_IDLE;
417                     break;
418 
419           case UCBADC_MEASUMENT_INIT:
420                     switch (sc->sm_measurement) {
421                     default:
422                               panic("unknown measurement spec.");
423                               /* NOTREACHED */
424                               break;
425                     case UCBADC_MEASUREMENT_X:
426                               REGWRITE(UCB1200_TSCTRL_REG,
427                                   UCB1200_TSCTRL_XPOSITION,
428                                   UCBADC_ADC_ENABLE);
429                               break;
430                     case UCBADC_MEASUREMENT_Y:
431                               REGWRITE(UCB1200_TSCTRL_REG,
432                                   UCB1200_TSCTRL_YPOSITION,
433                                   UCBADC_ADC_ENABLE);
434                               break;
435                     case UCBADC_MEASUREMENT_PRESSURE:
436                               REGWRITE(UCB1200_TSCTRL_REG,
437                                   UCB1200_TSCTRL_PRESSURE,
438                                   UCBADC_ADC_ENABLE);
439                               break;
440                     }
441                     break;
442 
443           case UCBADC_MEASUMENT_FINI:
444                     switch (sc->sm_measurement) {
445                     case UCBADC_MEASUREMENT_X:
446                               sc->sm_measurement = UCBADC_MEASUREMENT_Y;
447                               sc->sm_state = UCBADC_MEASUMENT_INIT;
448                               break;
449                     case UCBADC_MEASUREMENT_Y:
450                               sc->sm_measurement = UCBADC_MEASUREMENT_PRESSURE;
451                               sc->sm_state = UCBADC_MEASUMENT_INIT;
452                               break;
453                     case UCBADC_MEASUREMENT_PRESSURE:
454                               sc->sm_measurement = UCBADC_MEASUREMENT_X;
455                               /* measurement complete. pass down to wsmouse_input */
456                               sc->sm_state = UCBADC_ADC_INPUT;
457                               break;
458                     }
459                     break;
460 
461           case UCBADC_ADC_ENABLE:
462                     switch (sc->sm_measurement) {
463                     case UCBADC_MEASUREMENT_PRESSURE:
464                               /* FALLTHROUGH */
465                     case UCBADC_MEASUREMENT_X:
466                               sc->sm_tmpreg = UCB1200_ADCCTRL_INPUT_SET(
467                                         UCB1200_ADCCTRL_ENABLE,
468                                         UCB1200_ADCCTRL_INPUT_TSPX);
469                               REGWRITE(UCB1200_ADCCTRL_REG, sc->sm_tmpreg,
470                                   UCBADC_ADC_START0);
471                               break;
472                     case UCBADC_MEASUREMENT_Y:
473                               sc->sm_tmpreg = UCB1200_ADCCTRL_INPUT_SET(
474                                         UCB1200_ADCCTRL_ENABLE,
475                                         UCB1200_ADCCTRL_INPUT_TSPY);
476                               REGWRITE(UCB1200_ADCCTRL_REG, sc->sm_tmpreg,
477                                   UCBADC_ADC_START0);
478                               break;
479                     }
480                     break;
481 
482           case UCBADC_ADC_START0:
483                     REGWRITE(UCB1200_ADCCTRL_REG,
484                         sc->sm_tmpreg | UCB1200_ADCCTRL_START,
485                         UCBADC_ADC_START1);
486                     break;
487 
488           case UCBADC_ADC_START1:
489                     REGWRITE(UCB1200_ADCCTRL_REG,
490                         sc->sm_tmpreg,
491                         UCBADC_ADC_DATAREAD);
492                     sc->sm_retry = UCBADC_RETRY_DEFAULT;
493                     break;
494 
495           case UCBADC_ADC_DATAREAD:
496                     REGREAD(UCB1200_ADCDATA_REG, UCBADC_ADC_DATAREAD_WAIT);
497                     break;
498 
499           case UCBADC_ADC_DATAREAD_WAIT:
500                     reg16 = TX39_SIBSF0_REGDATA(sc->sm_reg);
501                     if (!(reg16 & UCB1200_ADCDATA_INPROGRESS) &&
502                         --sc->sm_retry > 0) {
503                               sc->sm_state = UCBADC_ADC_DATAREAD;
504                     } else {
505                               if (sc->sm_retry <= 0) {
506                                         printf("dataread failed\n");
507                                         sc->sm_state = UCBADC_ADC_FINI;
508                                         break;
509                               }
510 
511                               switch (sc->sm_measurement) {
512                               case UCBADC_MEASUREMENT_X:
513                                         sc->sc_x = UCB1200_ADCDATA(reg16);
514                                         DPRINTFN(9, "x=%d\n", sc->sc_x);
515                                         break;
516                               case UCBADC_MEASUREMENT_Y:
517                                         sc->sc_y = UCB1200_ADCDATA(reg16);
518                                         DPRINTFN(9, "y=%d\n", sc->sc_y);
519                                         break;
520                               case UCBADC_MEASUREMENT_PRESSURE:
521                                         sc->sc_p = UCB1200_ADCDATA(reg16);
522                                         DPRINTFN(9, "p=%d\n", sc->sc_p);
523                                         break;
524                               }
525 
526                               sc->sm_state = UCBADC_ADC_DISABLE;
527                     }
528 
529                     break;
530 
531           case UCBADC_ADC_DISABLE:
532                     REGWRITE(UCB1200_ADCCTRL_REG, 0, UCBADC_ADC_INTRMODE);
533 
534                     break;
535           case UCBADC_ADC_INTRMODE:
536                     REGWRITE(UCB1200_TSCTRL_REG, UCB1200_TSCTRL_INTERRUPT,
537                         UCBADC_MEASUMENT_FINI);
538                     break;
539 
540           case UCBADC_ADC_INPUT:
541                     if (ucbtp_input(sc) == 0)
542                               sc->sm_state = UCBADC_ADC_FINI;
543                     else
544                               sc->sm_state = UCBADC_INTR_ACK0;
545                     break;
546 
547           case UCBADC_INTR_ACK0:
548                     REGREAD(UCB1200_INTSTAT_REG, UCBADC_INTR_ACK1);
549                     break;
550 
551           case UCBADC_INTR_ACK1:
552                     REGWRITE(UCB1200_INTSTAT_REG, sc->sm_reg, UCBADC_INTR_ACK2);
553                     break;
554 
555           case UCBADC_INTR_ACK2:
556                     sc->sc_polling_finish = 1;
557                     REGWRITE(UCB1200_INTSTAT_REG, 0, UCBADC_ADC_FINI);
558                     break;
559 
560                     /*
561                      * UCB1200 register access state
562                      */
563           case UCBADC_REGREAD:
564                     /*
565                      * In     : sc->sm_addr
566                      * Out    : sc->sm_reg  (with SIBtag)
567                      */
568 #define TXSIB_REGREAD_INIT    0
569 #define TXSIB_REGREAD_READ    1
570                     switch (sc->sm_read_state) {
571                     case TXSIB_REGREAD_INIT:
572                               reg = TX39_SIBSF0_REGADDR_SET(0, sc->sm_addr);
573                               tx_conf_write(tc, TX39_SIBSF0CTRL_REG, reg);
574                               sc->sm_rw_retry = UCBADC_RETRY_DEFAULT;
575                               sc->sm_read_state = TXSIB_REGREAD_READ;
576                               break;
577                     case TXSIB_REGREAD_READ:
578                               reg = tx_conf_read(tc, TX39_SIBSF0STAT_REG);
579                               if ((TX39_SIBSF0_REGADDR(reg) != sc->sm_addr) &&
580                                   --sc->sm_rw_retry > 0) {
581                                         break;
582                               }
583 
584                               if (sc->sm_rw_retry <= 0) {
585                                         printf("sf0read: command failed\n");
586                                         sc->sm_state = UCBADC_ADC_FINI;
587                               } else {
588                                         sc->sm_reg = reg;
589                                         sc->sm_read_state = TXSIB_REGREAD_INIT;
590                                         DPRINTFN(9, "%08x\n", reg);
591                                         if (sc->sm_writing)
592                                                   sc->sm_state = UCBADC_REGWRITE;
593                                         else
594                                                   sc->sm_state = sc->sm_returnstate;
595                               }
596                               break;
597                     }
598                     break;
599 
600           case UCBADC_REGWRITE:
601                     /*
602                      * In     : sc->sm_addr, sc->sm_reg (lower 16bit only)
603                      */
604 #define TXSIB_REGWRITE_INIT   0
605 #define TXSIB_REGWRITE_WRITE  1
606                     switch (sc->sm_write_state) {
607                     case TXSIB_REGWRITE_INIT:
608                               sc->sm_writing = 1;
609                               sc->sm_write_state = TXSIB_REGWRITE_WRITE;
610                               sc->sm_state = UCBADC_REGREAD;
611 
612                               sc->sm_write_val = sc->sm_reg;
613                               break;
614                     case TXSIB_REGWRITE_WRITE:
615                               sc->sm_writing = 0;
616                               sc->sm_write_state = TXSIB_REGWRITE_INIT;
617                               sc->sm_state = sc->sm_returnstate;
618 
619                               reg = sc->sm_reg;
620                               reg |= TX39_SIBSF0_WRITE;
621                               TX39_SIBSF0_REGDATA_CLR(reg);
622                               reg = TX39_SIBSF0_REGDATA_SET(reg, sc->sm_write_val);
623                               tx_conf_write(tc, TX39_SIBSF0CTRL_REG, reg);
624                               break;
625                     }
626                     break;
627           }
628 
629           return (0);
630 }
631 
632 int
ucbtp_input(struct ucbtp_softc * sc)633 ucbtp_input(struct ucbtp_softc *sc)
634 {
635           int rx, ry, x, y, p;
636 
637           rx = sc->sc_x;
638           ry = sc->sc_y;
639           p = sc->sc_p;
640 
641           if (!sc->sc_calibrated) {
642                     DPRINTFN(2, "x=%4d y=%4d p=%4d\n", rx, ry, p);
643                     DPRINTF("ucbtp_input: no calibration data\n");
644           }
645 
646           if (p < UCBTS_PRESS_THRESHOLD || rx == 0x3ff || ry == 0x3ff ||
647               rx == 0 || ry == 0) {
648                     sc->sc_stat = UCBTS_STAT_RELEASE;
649                     if (sc->sc_polling < UCBTS_TAP_THRESHOLD) {
650                               DPRINTFN(2, "TAP!\n");
651                               /* button 0 DOWN */
652                               wsmouse_input(sc->sc_wsmousedev, 1, 0, 0, 0, 0, 0);
653                               /* button 0 UP */
654                               wsmouse_input(sc->sc_wsmousedev, 0, 0, 0, 0, 0, 0);
655                     } else {
656                               wsmouse_input(sc->sc_wsmousedev, 0,
657                                   sc->sc_ox, sc->sc_oy, 0, 0,
658                                   WSMOUSE_INPUT_ABSOLUTE_X |
659                                   WSMOUSE_INPUT_ABSOLUTE_Y);
660 
661                               DPRINTFN(2, "RELEASE\n");
662                     }
663                     sc->sc_polling = 0;
664 
665                     return (1);
666           }
667 
668           if (sc->sc_xy_reverse)
669                     tpcalib_trans(&sc->sc_tpcalib, ry, rx, &x, &y);
670           else
671                     tpcalib_trans(&sc->sc_tpcalib, rx, ry, &x, &y);
672 
673           DPRINTFN(2, "x: %4d->%4d y: %4d->%4d pressure=%4d\n",
674               rx, x, ry, y, p);
675 
676           /* debug draw */
677           if (sc->sc_tc->tc_videot) {
678                     if (sc->sc_polling == 1)
679                               video_dot(sc->sc_tc->tc_videot, x, y);
680                     else
681                               video_line(sc->sc_tc->tc_videot, sc->sc_ox,
682                                   sc->sc_oy, x, y);
683           }
684 
685           sc->sc_ox = x, sc->sc_oy = y;
686 
687           wsmouse_input(sc->sc_wsmousedev, 1, x, y, 0, 0,
688               WSMOUSE_INPUT_ABSOLUTE_X | WSMOUSE_INPUT_ABSOLUTE_Y);
689 
690           return (0);
691 }
692 
693 /*
694  * access ops.
695  */
696 
697 int
ucbtp_enable(void * v)698 ucbtp_enable(void *v)
699 {
700           /* not yet */
701           return (0);
702 }
703 
704 void
ucbtp_disable(void * v)705 ucbtp_disable(void *v)
706 {
707           /* not yet */
708 }
709 
710 int
ucbtp_ioctl(void * v,u_long cmd,void * data,int flag,struct lwp * l)711 ucbtp_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l)
712 {
713           struct ucbtp_softc *sc = v;
714 
715           DPRINTF("%s(%d): ucbtp_ioctl(%08lx)\n", __FILE__, __LINE__, cmd);
716 
717           switch (cmd) {
718           case WSMOUSEIO_SRES:
719                     printf("%s(%d): WSMOUSRIO_SRES is not supported",
720                         __FILE__, __LINE__);
721                     break;
722 
723           default:
724                     return hpc_tpanel_ioctl(&sc->sc_tpcalib, cmd, data, flag, l);
725           }
726 
727           return 0;
728 }
729