wzero3_tp.c revision 1.1 1 1.1 nonaka /* $NetBSD: wzero3_tp.c,v 1.1 2010/05/09 10:40:00 nonaka Exp $ */
2 1.1 nonaka
3 1.1 nonaka /*
4 1.1 nonaka * Copyright (c) 2010 NONAKA Kimihiro <nonaka (at) netbsd.org>
5 1.1 nonaka * All rights reserved.
6 1.1 nonaka *
7 1.1 nonaka * Redistribution and use in source and binary forms, with or without
8 1.1 nonaka * modification, are permitted provided that the following conditions
9 1.1 nonaka * are met:
10 1.1 nonaka * 1. Redistributions of source code must retain the above copyright
11 1.1 nonaka * notice, this list of conditions and the following disclaimer.
12 1.1 nonaka * 2. Redistributions in binary form must reproduce the above copyright
13 1.1 nonaka * notice, this list of conditions and the following disclaimer in the
14 1.1 nonaka * documentation and/or other materials provided with the distribution.
15 1.1 nonaka *
16 1.1 nonaka * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
17 1.1 nonaka * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 1.1 nonaka * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 1.1 nonaka * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
20 1.1 nonaka * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 1.1 nonaka * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 1.1 nonaka * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 1.1 nonaka * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 1.1 nonaka * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 1.1 nonaka * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 1.1 nonaka * SUCH DAMAGE.
27 1.1 nonaka */
28 1.1 nonaka
29 1.1 nonaka #include <sys/cdefs.h>
30 1.1 nonaka __KERNEL_RCSID(0, "$NetBSD: wzero3_tp.c,v 1.1 2010/05/09 10:40:00 nonaka Exp $");
31 1.1 nonaka
32 1.1 nonaka #include <sys/types.h>
33 1.1 nonaka #include <sys/param.h>
34 1.1 nonaka #include <sys/systm.h>
35 1.1 nonaka #include <sys/device.h>
36 1.1 nonaka #include <sys/malloc.h>
37 1.1 nonaka #include <sys/kernel.h>
38 1.1 nonaka #include <sys/callout.h>
39 1.1 nonaka
40 1.1 nonaka #include <machine/bootinfo.h>
41 1.1 nonaka #include <machine/platid.h>
42 1.1 nonaka #include <machine/platid_mask.h>
43 1.1 nonaka
44 1.1 nonaka #include <dev/wscons/wsconsio.h>
45 1.1 nonaka #include <dev/wscons/wsmousevar.h>
46 1.1 nonaka #include <dev/wscons/wsdisplayvar.h>
47 1.1 nonaka
48 1.1 nonaka #include <dev/hpc/hpcfbio.h>
49 1.1 nonaka #include <dev/hpc/hpctpanelvar.h>
50 1.1 nonaka
51 1.1 nonaka #include <arm/xscale/pxa2x0cpu.h>
52 1.1 nonaka #include <arm/xscale/pxa2x0reg.h>
53 1.1 nonaka #include <arm/xscale/pxa2x0var.h>
54 1.1 nonaka #include <arm/xscale/xscalereg.h>
55 1.1 nonaka #include <arm/xscale/pxa2x0_lcd.h>
56 1.1 nonaka #include <arm/xscale/pxa2x0_gpio.h>
57 1.1 nonaka
58 1.1 nonaka #include <hpcarm/dev/wzero3_reg.h>
59 1.1 nonaka #include <hpcarm/dev/wzero3_sspvar.h>
60 1.1 nonaka
61 1.1 nonaka #ifdef WZERO3TP_DEBUG
62 1.1 nonaka #define DPRINTF(s) printf s
63 1.1 nonaka #else
64 1.1 nonaka #define DPRINTF(s)
65 1.1 nonaka #endif
66 1.1 nonaka
67 1.1 nonaka /*
68 1.1 nonaka * ADS784x touch screen controller
69 1.1 nonaka */
70 1.1 nonaka #define ADSCTRL_PD0_SH 0 /* PD0 bit */
71 1.1 nonaka #define ADSCTRL_PD1_SH 1 /* PD1 bit */
72 1.1 nonaka #define ADSCTRL_DFR_SH 2 /* SER/DFR bit */
73 1.1 nonaka #define ADSCTRL_MOD_SH 3 /* Mode bit */
74 1.1 nonaka #define ADSCTRL_ADR_SH 4 /* Address setting */
75 1.1 nonaka #define ADSCTRL_STS_SH 7 /* Start bit */
76 1.1 nonaka
77 1.1 nonaka #define POLL_TIMEOUT_RATE0 ((hz * 150)/1000)
78 1.1 nonaka #define POLL_TIMEOUT_RATE1 (hz / 100) /* XXX every tick */
79 1.1 nonaka
80 1.1 nonaka /* Settable via sysctl. */
81 1.1 nonaka int wzero3tp_rawmode;
82 1.1 nonaka
83 1.1 nonaka static const struct wsmouse_calibcoords ws007sh_default_calib = {
84 1.1 nonaka 0, 0, 479, 639, /* minx, miny, maxx, maxy */
85 1.1 nonaka 5, /* samplelen */
86 1.1 nonaka {
87 1.1 nonaka { 2050, 2024, 240, 320 }, /* rawx, rawy, x, y */
88 1.1 nonaka { 578, 3471, 48, 64 },
89 1.1 nonaka { 578, 582, 48, 576 },
90 1.1 nonaka { 3432, 582, 432, 576 },
91 1.1 nonaka { 3432, 3471, 432, 64 },
92 1.1 nonaka }
93 1.1 nonaka };
94 1.1 nonaka
95 1.1 nonaka struct wzero3tp_pos {
96 1.1 nonaka int x;
97 1.1 nonaka int y;
98 1.1 nonaka int z; /* touch pressure */
99 1.1 nonaka };
100 1.1 nonaka
101 1.1 nonaka struct wzero3tp_model;
102 1.1 nonaka struct wzero3tp_softc {
103 1.1 nonaka device_t sc_dev;
104 1.1 nonaka const struct wzero3tp_model *sc_model;
105 1.1 nonaka void *sc_gh;
106 1.1 nonaka struct callout sc_tp_poll;
107 1.1 nonaka int sc_enabled;
108 1.1 nonaka int sc_buttons; /* button emulation ? */
109 1.1 nonaka struct device *sc_wsmousedev;
110 1.1 nonaka struct wzero3tp_pos sc_oldpos;
111 1.1 nonaka int sc_resx;
112 1.1 nonaka int sc_resy;
113 1.1 nonaka struct tpcalib_softc sc_tpcalib;
114 1.1 nonaka };
115 1.1 nonaka
116 1.1 nonaka static int wzero3tp_match(device_t, cfdata_t, void *);
117 1.1 nonaka static void wzero3tp_attach(device_t, device_t, void *);
118 1.1 nonaka
119 1.1 nonaka CFATTACH_DECL_NEW(wzero3tp, sizeof(struct wzero3tp_softc),
120 1.1 nonaka wzero3tp_match, wzero3tp_attach, NULL, NULL);
121 1.1 nonaka
122 1.1 nonaka static int wzero3tp_enable(void *);
123 1.1 nonaka static void wzero3tp_disable(void *);
124 1.1 nonaka static bool wzero3tp_suspend(device_t dv, const pmf_qual_t *);
125 1.1 nonaka static bool wzero3tp_resume(device_t dv, const pmf_qual_t *);
126 1.1 nonaka static void wzero3tp_poll(void *);
127 1.1 nonaka static int wzero3tp_irq(void *);
128 1.1 nonaka static int wzero3tp_ioctl(void *, u_long, void *, int, struct lwp *);
129 1.1 nonaka
130 1.1 nonaka static const struct wsmouse_accessops wzero3tp_accessops = {
131 1.1 nonaka wzero3tp_enable,
132 1.1 nonaka wzero3tp_ioctl,
133 1.1 nonaka wzero3tp_disable
134 1.1 nonaka };
135 1.1 nonaka
136 1.1 nonaka struct wzero3tp_model {
137 1.1 nonaka platid_mask_t *platid;
138 1.1 nonaka const char *name;
139 1.1 nonaka int resx, resy;
140 1.1 nonaka int intr_pin;
141 1.1 nonaka const struct wsmouse_calibcoords *calib;
142 1.1 nonaka } wzero3tp_table[] = {
143 1.1 nonaka #if 0
144 1.1 nonaka /* WS003SH */
145 1.1 nonaka {
146 1.1 nonaka &platid_mask_MACH_SHARP_WZERO3_WS003SH,
147 1.1 nonaka "WS003SH",
148 1.1 nonaka 480, 640,
149 1.1 nonaka -1,
150 1.1 nonaka NULL,
151 1.1 nonaka },
152 1.1 nonaka /* WS004SH */
153 1.1 nonaka {
154 1.1 nonaka &platid_mask_MACH_SHARP_WZERO3_WS004SH,
155 1.1 nonaka "WS004SH",
156 1.1 nonaka 480, 640,
157 1.1 nonaka -1,
158 1.1 nonaka NULL,
159 1.1 nonaka },
160 1.1 nonaka #endif
161 1.1 nonaka /* WS007SH */
162 1.1 nonaka {
163 1.1 nonaka &platid_mask_MACH_SHARP_WZERO3_WS007SH,
164 1.1 nonaka "WS007SH",
165 1.1 nonaka 480, 640,
166 1.1 nonaka GPIO_WS007SH_TOUCH_PANEL,
167 1.1 nonaka &ws007sh_default_calib,
168 1.1 nonaka },
169 1.1 nonaka #if 0
170 1.1 nonaka /* WS011SH */
171 1.1 nonaka {
172 1.1 nonaka &platid_mask_MACH_SHARP_WZERO3_WS011SH,
173 1.1 nonaka "WS011SH",
174 1.1 nonaka 480, 800,
175 1.1 nonaka GPIO_WS011SH_TOUCH_PANEL,
176 1.1 nonaka NULL,
177 1.1 nonaka },
178 1.1 nonaka /* WS0020H */
179 1.1 nonaka {
180 1.1 nonaka &platid_mask_MACH_SHARP_WZERO3_WS020SH,
181 1.1 nonaka "WS020SH",
182 1.1 nonaka 480, 800,
183 1.1 nonaka -1,
184 1.1 nonaka NULL,
185 1.1 nonaka },
186 1.1 nonaka #endif
187 1.1 nonaka {
188 1.1 nonaka NULL, NULL, -1, -1, -1, NULL,
189 1.1 nonaka },
190 1.1 nonaka };
191 1.1 nonaka
192 1.1 nonaka
193 1.1 nonaka static const struct wzero3tp_model *
194 1.1 nonaka wzero3tp_lookup(void)
195 1.1 nonaka {
196 1.1 nonaka const struct wzero3tp_model *model;
197 1.1 nonaka
198 1.1 nonaka for (model = wzero3tp_table; model->platid != NULL; model++) {
199 1.1 nonaka if (platid_match(&platid, model->platid)) {
200 1.1 nonaka return model;
201 1.1 nonaka }
202 1.1 nonaka }
203 1.1 nonaka return NULL;
204 1.1 nonaka }
205 1.1 nonaka
206 1.1 nonaka static int
207 1.1 nonaka wzero3tp_match(device_t parent, cfdata_t cf, void *aux)
208 1.1 nonaka {
209 1.1 nonaka
210 1.1 nonaka if (strcmp(cf->cf_name, "wzero3tp") != 0)
211 1.1 nonaka return 0;
212 1.1 nonaka if (wzero3tp_lookup() == NULL)
213 1.1 nonaka return 0;
214 1.1 nonaka return 1;
215 1.1 nonaka }
216 1.1 nonaka
217 1.1 nonaka static void
218 1.1 nonaka wzero3tp_attach(device_t parent, device_t self, void *aux)
219 1.1 nonaka {
220 1.1 nonaka struct wzero3tp_softc *sc = device_private(self);
221 1.1 nonaka struct wsmousedev_attach_args a;
222 1.1 nonaka
223 1.1 nonaka sc->sc_dev = self;
224 1.1 nonaka
225 1.1 nonaka sc->sc_model = wzero3tp_lookup();
226 1.1 nonaka if (sc->sc_model == NULL)
227 1.1 nonaka return;
228 1.1 nonaka
229 1.1 nonaka aprint_normal(": touch panel\n");
230 1.1 nonaka aprint_naive("\n");
231 1.1 nonaka
232 1.1 nonaka callout_init(&sc->sc_tp_poll, 0);
233 1.1 nonaka callout_setfunc(&sc->sc_tp_poll, wzero3tp_poll, sc);
234 1.1 nonaka
235 1.1 nonaka a.accessops = &wzero3tp_accessops;
236 1.1 nonaka a.accesscookie = sc;
237 1.1 nonaka
238 1.1 nonaka sc->sc_resx = sc->sc_model->resx;
239 1.1 nonaka sc->sc_resy = sc->sc_model->resy;
240 1.1 nonaka
241 1.1 nonaka sc->sc_wsmousedev = config_found(self, &a, wsmousedevprint);
242 1.1 nonaka
243 1.1 nonaka /* Initialize calibration, set default parameters. */
244 1.1 nonaka tpcalib_init(&sc->sc_tpcalib);
245 1.1 nonaka tpcalib_ioctl(&sc->sc_tpcalib, WSMOUSEIO_SCALIBCOORDS,
246 1.1 nonaka __UNCONST(sc->sc_model->calib), 0, 0);
247 1.1 nonaka }
248 1.1 nonaka
249 1.1 nonaka static int
250 1.1 nonaka wzero3tp_enable(void *v)
251 1.1 nonaka {
252 1.1 nonaka struct wzero3tp_softc *sc = (struct wzero3tp_softc *)v;
253 1.1 nonaka
254 1.1 nonaka DPRINTF(("%s: wzero3tp_enable()\n", device_xname(sc->sc_dev)));
255 1.1 nonaka
256 1.1 nonaka if (sc->sc_enabled) {
257 1.1 nonaka DPRINTF(("%s: already enabled\n", device_xname(sc->sc_dev)));
258 1.1 nonaka return EBUSY;
259 1.1 nonaka }
260 1.1 nonaka
261 1.1 nonaka callout_stop(&sc->sc_tp_poll);
262 1.1 nonaka
263 1.1 nonaka if (!pmf_device_register(sc->sc_dev, wzero3tp_suspend, wzero3tp_resume))
264 1.1 nonaka aprint_error_dev(sc->sc_dev,
265 1.1 nonaka "couldn't establish power handler\n");
266 1.1 nonaka
267 1.1 nonaka if (sc->sc_model->intr_pin >= 0) {
268 1.1 nonaka pxa2x0_gpio_set_function(sc->sc_model->intr_pin, GPIO_IN);
269 1.1 nonaka
270 1.1 nonaka /* XXX */
271 1.1 nonaka if (sc->sc_gh == NULL) {
272 1.1 nonaka sc->sc_gh = pxa2x0_gpio_intr_establish(
273 1.1 nonaka sc->sc_model->intr_pin, IST_EDGE_FALLING, IPL_TTY,
274 1.1 nonaka wzero3tp_irq, sc);
275 1.1 nonaka } else {
276 1.1 nonaka pxa2x0_gpio_intr_unmask(sc->sc_gh);
277 1.1 nonaka }
278 1.1 nonaka }
279 1.1 nonaka
280 1.1 nonaka /* enable interrupts */
281 1.1 nonaka sc->sc_enabled = 1;
282 1.1 nonaka sc->sc_buttons = 0;
283 1.1 nonaka
284 1.1 nonaka return 0;
285 1.1 nonaka }
286 1.1 nonaka
287 1.1 nonaka static void
288 1.1 nonaka wzero3tp_disable(void *v)
289 1.1 nonaka {
290 1.1 nonaka struct wzero3tp_softc *sc = (struct wzero3tp_softc *)v;
291 1.1 nonaka
292 1.1 nonaka DPRINTF(("%s: wzero3tp_disable()\n", device_xname(sc->sc_dev)));
293 1.1 nonaka
294 1.1 nonaka callout_stop(&sc->sc_tp_poll);
295 1.1 nonaka
296 1.1 nonaka pmf_device_deregister(sc->sc_dev);
297 1.1 nonaka
298 1.1 nonaka if (sc->sc_gh)
299 1.1 nonaka pxa2x0_gpio_intr_mask(sc->sc_gh);
300 1.1 nonaka
301 1.1 nonaka /* disable interrupts */
302 1.1 nonaka sc->sc_enabled = 0;
303 1.1 nonaka }
304 1.1 nonaka
305 1.1 nonaka static bool
306 1.1 nonaka wzero3tp_suspend(device_t dv, const pmf_qual_t *qual)
307 1.1 nonaka {
308 1.1 nonaka struct wzero3tp_softc *sc = device_private(dv);
309 1.1 nonaka
310 1.1 nonaka DPRINTF(("%s: wzero3tp_suspend()\n", device_xname(sc->sc_dev)));
311 1.1 nonaka
312 1.1 nonaka sc->sc_enabled = 0;
313 1.1 nonaka if (sc->sc_gh)
314 1.1 nonaka pxa2x0_gpio_intr_mask(sc->sc_gh);
315 1.1 nonaka
316 1.1 nonaka callout_stop(&sc->sc_tp_poll);
317 1.1 nonaka
318 1.1 nonaka /* Turn off reference voltage but leave ADC on. */
319 1.1 nonaka (void)wzero3ssp_ic_send(WZERO3_SSP_IC_ADS7846,
320 1.1 nonaka (1<<ADSCTRL_PD1_SH) | (1<<ADSCTRL_ADR_SH) | (1<<ADSCTRL_STS_SH));
321 1.1 nonaka
322 1.1 nonaka if (sc->sc_model->intr_pin >= 0) {
323 1.1 nonaka pxa2x0_gpio_set_function(sc->sc_model->intr_pin,
324 1.1 nonaka GPIO_OUT|GPIO_SET);
325 1.1 nonaka }
326 1.1 nonaka
327 1.1 nonaka return true;
328 1.1 nonaka }
329 1.1 nonaka
330 1.1 nonaka static bool
331 1.1 nonaka wzero3tp_resume(device_t dv, const pmf_qual_t *qual)
332 1.1 nonaka {
333 1.1 nonaka struct wzero3tp_softc *sc = device_private(dv);
334 1.1 nonaka
335 1.1 nonaka DPRINTF(("%s: wzero3tp_resume()\n", device_xname(sc->sc_dev)));
336 1.1 nonaka
337 1.1 nonaka if (sc->sc_model->intr_pin >= 0)
338 1.1 nonaka pxa2x0_gpio_set_function(sc->sc_model->intr_pin, GPIO_IN);
339 1.1 nonaka if (sc->sc_gh)
340 1.1 nonaka pxa2x0_gpio_intr_mask(sc->sc_gh);
341 1.1 nonaka
342 1.1 nonaka /* Enable automatic low power mode. */
343 1.1 nonaka (void)wzero3ssp_ic_send(WZERO3_SSP_IC_ADS7846,
344 1.1 nonaka (4<<ADSCTRL_ADR_SH) | (1<<ADSCTRL_STS_SH));
345 1.1 nonaka
346 1.1 nonaka if (sc->sc_gh)
347 1.1 nonaka pxa2x0_gpio_intr_unmask(sc->sc_gh);
348 1.1 nonaka sc->sc_enabled = 1;
349 1.1 nonaka
350 1.1 nonaka return true;
351 1.1 nonaka }
352 1.1 nonaka
353 1.1 nonaka #define HSYNC() \
354 1.1 nonaka do { \
355 1.1 nonaka while (pxa2x0_gpio_get_bit(GPIO_WS007SH_HSYNC) == 0) \
356 1.1 nonaka continue; \
357 1.1 nonaka while (pxa2x0_gpio_get_bit(GPIO_WS007SH_HSYNC) != 0) \
358 1.1 nonaka continue; \
359 1.1 nonaka } while (/*CONSTCOND*/0)
360 1.1 nonaka
361 1.1 nonaka static uint32_t wzero3tp_sync_ads784x(int, int, uint32_t);
362 1.1 nonaka static int wzero3tp_readpos(struct wzero3tp_pos *);
363 1.1 nonaka
364 1.1 nonaka /*
365 1.1 nonaka * Communicate synchronously with the ADS784x touch screen controller.
366 1.1 nonaka */
367 1.1 nonaka static uint32_t
368 1.1 nonaka wzero3tp_sync_ads784x(int dorecv/* XXX */, int dosend/* XXX */, uint32_t cmd)
369 1.1 nonaka {
370 1.1 nonaka uint32_t rv = 0;
371 1.1 nonaka
372 1.1 nonaka HSYNC();
373 1.1 nonaka
374 1.1 nonaka if (dorecv)
375 1.1 nonaka rv = wzero3ssp_ic_stop(WZERO3_SSP_IC_ADS7846);
376 1.1 nonaka
377 1.1 nonaka if (dosend) {
378 1.1 nonaka /* send dummy command; discard SSDR */
379 1.1 nonaka (void)wzero3ssp_ic_send(WZERO3_SSP_IC_ADS7846, cmd);
380 1.1 nonaka
381 1.1 nonaka /* wait for refresh */
382 1.1 nonaka HSYNC();
383 1.1 nonaka
384 1.1 nonaka /* send the actual command; keep ADS784x enabled */
385 1.1 nonaka wzero3ssp_ic_start(WZERO3_SSP_IC_ADS7846, cmd);
386 1.1 nonaka }
387 1.1 nonaka
388 1.1 nonaka return rv;
389 1.1 nonaka }
390 1.1 nonaka
391 1.1 nonaka static int
392 1.1 nonaka wzero3tp_readpos(struct wzero3tp_pos *pos)
393 1.1 nonaka {
394 1.1 nonaka int cmd, cmd0;
395 1.1 nonaka int z0, z1;
396 1.1 nonaka int down;
397 1.1 nonaka
398 1.1 nonaka cmd0 = (1<<ADSCTRL_STS_SH) | (1<<ADSCTRL_PD0_SH) | (1<<ADSCTRL_PD1_SH);
399 1.1 nonaka
400 1.1 nonaka /* check that pen is down */
401 1.1 nonaka cmd = cmd0 | (3<<ADSCTRL_ADR_SH);
402 1.1 nonaka z0 = wzero3ssp_ic_send(WZERO3_SSP_IC_ADS7846, cmd);
403 1.1 nonaka DPRINTF(("ztp_readpos(): first z0 = %d\n", z0));
404 1.1 nonaka
405 1.1 nonaka down = (z0 >= 10);
406 1.1 nonaka if (!down)
407 1.1 nonaka goto out;
408 1.1 nonaka
409 1.1 nonaka /* Y (discard) */
410 1.1 nonaka cmd = cmd0 | (1<<ADSCTRL_ADR_SH);
411 1.1 nonaka (void)wzero3tp_sync_ads784x(0, 1, cmd);
412 1.1 nonaka
413 1.1 nonaka /* Y */
414 1.1 nonaka cmd = cmd0 | (1<<ADSCTRL_ADR_SH);
415 1.1 nonaka (void)wzero3tp_sync_ads784x(1, 1, cmd);
416 1.1 nonaka
417 1.1 nonaka /* X */
418 1.1 nonaka cmd = cmd0 | (5<<ADSCTRL_ADR_SH);
419 1.1 nonaka pos->y = wzero3tp_sync_ads784x(1, 1, cmd);
420 1.1 nonaka DPRINTF(("wzero3tp_readpos(): y = %d\n", pos->y));
421 1.1 nonaka
422 1.1 nonaka /* Z0 */
423 1.1 nonaka cmd = cmd0 | (3<<ADSCTRL_ADR_SH);
424 1.1 nonaka pos->x = wzero3tp_sync_ads784x(1, 1, cmd);
425 1.1 nonaka DPRINTF(("wzero3tp_readpos(): x = %d\n", pos->x));
426 1.1 nonaka
427 1.1 nonaka /* Z1 */
428 1.1 nonaka cmd = cmd0 | (4<<ADSCTRL_ADR_SH);
429 1.1 nonaka z0 = wzero3tp_sync_ads784x(1, 1, cmd);
430 1.1 nonaka z1 = wzero3tp_sync_ads784x(1, 0, cmd);
431 1.1 nonaka DPRINTF(("wzero3tp_readpos(): z0 = %d, z1 = %d\n", z0, z1));
432 1.1 nonaka
433 1.1 nonaka /* check that pen is still down */
434 1.1 nonaka if (z0 == 0 || (pos->x * (z1 - z0) / z0) >= 15000)
435 1.1 nonaka down = 0;
436 1.1 nonaka pos->z = down;
437 1.1 nonaka
438 1.1 nonaka out:
439 1.1 nonaka /* Enable automatic low power mode. */
440 1.1 nonaka cmd = (1<<ADSCTRL_ADR_SH) | (1<<ADSCTRL_STS_SH);
441 1.1 nonaka (void)wzero3ssp_ic_send(WZERO3_SSP_IC_ADS7846, cmd);
442 1.1 nonaka
443 1.1 nonaka return down;
444 1.1 nonaka }
445 1.1 nonaka
446 1.1 nonaka static void
447 1.1 nonaka wzero3tp_poll(void *v)
448 1.1 nonaka {
449 1.1 nonaka int s;
450 1.1 nonaka
451 1.1 nonaka s = spltty();
452 1.1 nonaka (void)wzero3tp_irq(v);
453 1.1 nonaka splx(s);
454 1.1 nonaka }
455 1.1 nonaka
456 1.1 nonaka static int
457 1.1 nonaka wzero3tp_irq(void *v)
458 1.1 nonaka {
459 1.1 nonaka struct wzero3tp_softc *sc = (struct wzero3tp_softc *)v;
460 1.1 nonaka struct wzero3tp_pos tp = { 0, 0, 0 };
461 1.1 nonaka int pindown;
462 1.1 nonaka int down;
463 1.1 nonaka int x, y;
464 1.1 nonaka int s;
465 1.1 nonaka
466 1.1 nonaka if (!sc->sc_enabled)
467 1.1 nonaka return 0;
468 1.1 nonaka
469 1.1 nonaka s = splhigh();
470 1.1 nonaka
471 1.1 nonaka if (sc->sc_model->intr_pin >= 0)
472 1.1 nonaka pindown = pxa2x0_gpio_get_bit(sc->sc_model->intr_pin) ? 0 : 1;
473 1.1 nonaka else
474 1.1 nonaka pindown = 0;/*XXX*/
475 1.1 nonaka DPRINTF(("%s: pindown = %d\n", device_xname(sc->sc_dev), pindown));
476 1.1 nonaka if (pindown) {
477 1.1 nonaka pxa2x0_gpio_intr_mask(sc->sc_gh);
478 1.1 nonaka callout_schedule(&sc->sc_tp_poll, POLL_TIMEOUT_RATE1);
479 1.1 nonaka }
480 1.1 nonaka
481 1.1 nonaka down = wzero3tp_readpos(&tp);
482 1.1 nonaka DPRINTF(("%s: x = %d, y = %d, z = %d, down = %d\n",
483 1.1 nonaka device_xname(sc->sc_dev), tp.x, tp.y, tp.z, down));
484 1.1 nonaka
485 1.1 nonaka if (!pindown) {
486 1.1 nonaka pxa2x0_gpio_intr_unmask(sc->sc_gh);
487 1.1 nonaka callout_schedule(&sc->sc_tp_poll, POLL_TIMEOUT_RATE0);
488 1.1 nonaka }
489 1.1 nonaka if (sc->sc_model->intr_pin >= 0)
490 1.1 nonaka pxa2x0_gpio_clear_intr(sc->sc_model->intr_pin);
491 1.1 nonaka
492 1.1 nonaka splx(s);
493 1.1 nonaka
494 1.1 nonaka if (down) {
495 1.1 nonaka if (!wzero3tp_rawmode) {
496 1.1 nonaka tpcalib_trans(&sc->sc_tpcalib, tp.x, tp.y, &x, &y);
497 1.1 nonaka DPRINTF(("%s: x = %d, y = %d\n",
498 1.1 nonaka device_xname(sc->sc_dev), x, y));
499 1.1 nonaka tp.x = x;
500 1.1 nonaka tp.y = y;
501 1.1 nonaka }
502 1.1 nonaka }
503 1.1 nonaka
504 1.1 nonaka if (!down) {
505 1.1 nonaka /* x/y values are not reliable when pen is up */
506 1.1 nonaka tp = sc->sc_oldpos;
507 1.1 nonaka }
508 1.1 nonaka
509 1.1 nonaka if (down || sc->sc_buttons != down) {
510 1.1 nonaka wsmouse_input(sc->sc_wsmousedev, down, tp.x, tp.y, 0, 0,
511 1.1 nonaka WSMOUSE_INPUT_ABSOLUTE_X | WSMOUSE_INPUT_ABSOLUTE_Y);
512 1.1 nonaka sc->sc_buttons = down;
513 1.1 nonaka sc->sc_oldpos = tp;
514 1.1 nonaka }
515 1.1 nonaka
516 1.1 nonaka return 1;
517 1.1 nonaka }
518 1.1 nonaka
519 1.1 nonaka static int
520 1.1 nonaka wzero3tp_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l)
521 1.1 nonaka {
522 1.1 nonaka struct wzero3tp_softc *sc = (struct wzero3tp_softc *)v;
523 1.1 nonaka struct wsmouse_id *id;
524 1.1 nonaka
525 1.1 nonaka switch (cmd) {
526 1.1 nonaka case WSMOUSEIO_GTYPE:
527 1.1 nonaka *(u_int *)data = WSMOUSE_TYPE_TPANEL;
528 1.1 nonaka return 0;
529 1.1 nonaka
530 1.1 nonaka case WSMOUSEIO_GETID:
531 1.1 nonaka /*
532 1.1 nonaka * return unique ID string,
533 1.1 nonaka * "<vendor> <model> <serial number>"
534 1.1 nonaka */
535 1.1 nonaka id = (struct wsmouse_id *)data;
536 1.1 nonaka if (id->type != WSMOUSE_ID_TYPE_UIDSTR)
537 1.1 nonaka return EINVAL;
538 1.1 nonaka snprintf(id->data, WSMOUSE_ID_MAXLEN, "Sharp %s SN000000",
539 1.1 nonaka sc->sc_model->name);
540 1.1 nonaka id->length = strlen(id->data);
541 1.1 nonaka return 0;
542 1.1 nonaka
543 1.1 nonaka case WSMOUSEIO_SCALIBCOORDS:
544 1.1 nonaka case WSMOUSEIO_GCALIBCOORDS:
545 1.1 nonaka return tpcalib_ioctl(&sc->sc_tpcalib, cmd, data, flag, l);
546 1.1 nonaka }
547 1.1 nonaka
548 1.1 nonaka return EPASSTHROUGH;
549 1.1 nonaka }
550