Lines Matching refs:ts
203 static int get_pendown_state(struct ads7846 *ts) in get_pendown_state() argument
205 if (ts->get_pendown_state) in get_pendown_state()
206 return ts->get_pendown_state(); in get_pendown_state()
208 return !gpio_get_value(ts->gpio_pendown); in get_pendown_state()
211 static void ads7846_report_pen_up(struct ads7846 *ts) in ads7846_report_pen_up() argument
213 struct input_dev *input = ts->input; in ads7846_report_pen_up()
219 ts->pendown = false; in ads7846_report_pen_up()
220 dev_vdbg(&ts->spi->dev, "UP\n"); in ads7846_report_pen_up()
224 static void ads7846_stop(struct ads7846 *ts) in ads7846_stop() argument
226 if (!ts->disabled && !ts->suspended) { in ads7846_stop()
228 ts->stopped = true; in ads7846_stop()
230 wake_up(&ts->wait); in ads7846_stop()
231 disable_irq(ts->spi->irq); in ads7846_stop()
236 static void ads7846_restart(struct ads7846 *ts) in ads7846_restart() argument
238 if (!ts->disabled && !ts->suspended) { in ads7846_restart()
240 if (ts->pendown && !get_pendown_state(ts)) in ads7846_restart()
241 ads7846_report_pen_up(ts); in ads7846_restart()
244 ts->stopped = false; in ads7846_restart()
246 enable_irq(ts->spi->irq); in ads7846_restart()
251 static void __ads7846_disable(struct ads7846 *ts) in __ads7846_disable() argument
253 ads7846_stop(ts); in __ads7846_disable()
254 regulator_disable(ts->reg); in __ads7846_disable()
263 static void __ads7846_enable(struct ads7846 *ts) in __ads7846_enable() argument
267 error = regulator_enable(ts->reg); in __ads7846_enable()
269 dev_err(&ts->spi->dev, "Failed to enable supply: %d\n", error); in __ads7846_enable()
271 ads7846_restart(ts); in __ads7846_enable()
274 static void ads7846_disable(struct ads7846 *ts) in ads7846_disable() argument
276 mutex_lock(&ts->lock); in ads7846_disable()
278 if (!ts->disabled) { in ads7846_disable()
280 if (!ts->suspended) in ads7846_disable()
281 __ads7846_disable(ts); in ads7846_disable()
283 ts->disabled = true; in ads7846_disable()
286 mutex_unlock(&ts->lock); in ads7846_disable()
289 static void ads7846_enable(struct ads7846 *ts) in ads7846_enable() argument
291 mutex_lock(&ts->lock); in ads7846_enable()
293 if (ts->disabled) { in ads7846_enable()
295 ts->disabled = false; in ads7846_enable()
297 if (!ts->suspended) in ads7846_enable()
298 __ads7846_enable(ts); in ads7846_enable()
301 mutex_unlock(&ts->lock); in ads7846_enable()
340 struct ads7846 *ts = dev_get_drvdata(dev); in ads7846_read12_ser() local
351 if (ts->use_internal) { in ads7846_read12_ser()
361 req->xfer[1].delay.value = ts->vref_delay_usecs; in ads7846_read12_ser()
395 mutex_lock(&ts->lock); in ads7846_read12_ser()
396 ads7846_stop(ts); in ads7846_read12_ser()
398 ads7846_restart(ts); in ads7846_read12_ser()
399 mutex_unlock(&ts->lock); in ads7846_read12_ser()
415 struct ads7846 *ts = dev_get_drvdata(dev); in ads7845_read12_ser() local
431 mutex_lock(&ts->lock); in ads7845_read12_ser()
432 ads7846_stop(ts); in ads7845_read12_ser()
434 ads7846_restart(ts); in ads7845_read12_ser()
435 mutex_unlock(&ts->lock); in ads7845_read12_ser()
453 struct ads7846 *ts = dev_get_drvdata(dev); \
454 ssize_t v = ads7846_read12_ser(&ts->spi->dev, \
458 return sprintf(buf, "%u\n", adjust(ts, v)); \
468 static inline unsigned null_adjust(struct ads7846 *ts, ssize_t v) in null_adjust() argument
481 static inline unsigned vaux_adjust(struct ads7846 *ts, ssize_t v) in SHOW()
486 retval *= ts->vref_mv; in SHOW()
492 static inline unsigned vbatt_adjust(struct ads7846 *ts, ssize_t v) in vbatt_adjust() argument
494 unsigned retval = vaux_adjust(ts, v); in vbatt_adjust()
497 if (ts->model == 7846) in vbatt_adjust()
510 struct ads7846 *ts = dev_get_drvdata(dev); in SHOW() local
512 if (ts->model == 7843 && index < 2) /* in0, in1 */ in SHOW()
514 if (ts->model == 7845 && index != 2) /* in0 */ in SHOW()
534 static int ads784x_hwmon_register(struct spi_device *spi, struct ads7846 *ts) in ads784x_hwmon_register() argument
537 switch (ts->model) { in ads784x_hwmon_register()
539 if (!ts->vref_mv) { in ads784x_hwmon_register()
541 ts->vref_mv = 2500; in ads784x_hwmon_register()
542 ts->use_internal = true; in ads784x_hwmon_register()
547 if (!ts->vref_mv) { in ads784x_hwmon_register()
550 ts->model); in ads784x_hwmon_register()
556 ts->hwmon = hwmon_device_register_with_groups(&spi->dev, spi->modalias, in ads784x_hwmon_register()
557 ts, ads7846_attr_groups); in ads784x_hwmon_register()
559 return PTR_ERR_OR_ZERO(ts->hwmon); in ads784x_hwmon_register()
563 struct ads7846 *ts) in ads784x_hwmon_unregister() argument
565 if (ts->hwmon) in ads784x_hwmon_unregister()
566 hwmon_device_unregister(ts->hwmon); in ads784x_hwmon_unregister()
571 struct ads7846 *ts) in ads784x_hwmon_register() argument
577 struct ads7846 *ts) in ads784x_hwmon_unregister() argument
585 struct ads7846 *ts = dev_get_drvdata(dev); in ads7846_pen_down_show() local
587 return sprintf(buf, "%u\n", ts->pendown); in ads7846_pen_down_show()
595 struct ads7846 *ts = dev_get_drvdata(dev); in ads7846_disable_show() local
597 return sprintf(buf, "%u\n", ts->disabled); in ads7846_disable_show()
604 struct ads7846 *ts = dev_get_drvdata(dev); in ads7846_disable_store() local
613 ads7846_disable(ts); in ads7846_disable_store()
615 ads7846_enable(ts); in ads7846_disable_store()
640 struct ads7846 *ts = ads; in ads7846_debounce_filter() local
642 if (!ts->read_cnt || (abs(ts->last_read - *val) > ts->debounce_tol)) { in ads7846_debounce_filter()
644 ts->read_rep = 0; in ads7846_debounce_filter()
649 if (ts->read_cnt < ts->debounce_max) { in ads7846_debounce_filter()
650 ts->last_read = *val; in ads7846_debounce_filter()
651 ts->read_cnt++; in ads7846_debounce_filter()
660 ts->read_cnt = 0; in ads7846_debounce_filter()
664 if (++ts->read_rep > ts->debounce_rep) { in ads7846_debounce_filter()
669 ts->read_cnt = 0; in ads7846_debounce_filter()
670 ts->read_rep = 0; in ads7846_debounce_filter()
674 ts->read_cnt++; in ads7846_debounce_filter()
685 static int ads7846_get_value(struct ads7846 *ts, struct spi_message *m) in ads7846_get_value() argument
691 if (ts->model == 7845) { in ads7846_get_value()
713 static void ads7846_read_state(struct ads7846 *ts) in ads7846_read_state() argument
715 struct ads7846_packet *packet = ts->packet; in ads7846_read_state()
722 while (msg_idx < ts->msg_count) { in ads7846_read_state()
724 ts->wait_for_sync(); in ads7846_read_state()
726 m = &ts->msg[msg_idx]; in ads7846_read_state()
727 error = spi_sync(ts->spi, m); in ads7846_read_state()
729 dev_err(&ts->spi->dev, "spi_sync --> %d\n", error); in ads7846_read_state()
738 if (msg_idx < ts->msg_count - 1) { in ads7846_read_state()
740 val = ads7846_get_value(ts, m); in ads7846_read_state()
742 action = ts->filter(ts->filter_data, msg_idx, &val); in ads7846_read_state()
749 msg_idx = ts->msg_count - 1; in ads7846_read_state()
767 static void ads7846_report_state(struct ads7846 *ts) in ads7846_report_state() argument
769 struct ads7846_packet *packet = ts->packet; in ads7846_report_state()
778 if (ts->model == 7845) { in ads7846_report_state()
794 if (ts->model == 7843) { in ads7846_report_state()
795 Rt = ts->pressure_max / 2; in ads7846_report_state()
796 } else if (ts->model == 7845) { in ads7846_report_state()
797 if (get_pendown_state(ts)) in ads7846_report_state()
798 Rt = ts->pressure_max / 2; in ads7846_report_state()
801 dev_vdbg(&ts->spi->dev, "x/y: %d/%d, PD %d\n", x, y, Rt); in ads7846_report_state()
806 Rt *= ts->x_plate_ohms; in ads7846_report_state()
820 if (packet->tc.ignore || Rt > ts->pressure_max) { in ads7846_report_state()
821 dev_vdbg(&ts->spi->dev, "ignored %d pressure %d\n", in ads7846_report_state()
830 if (ts->penirq_recheck_delay_usecs) { in ads7846_report_state()
831 udelay(ts->penirq_recheck_delay_usecs); in ads7846_report_state()
832 if (!get_pendown_state(ts)) in ads7846_report_state()
846 struct input_dev *input = ts->input; in ads7846_report_state()
848 if (!ts->pendown) { in ads7846_report_state()
850 ts->pendown = true; in ads7846_report_state()
851 dev_vdbg(&ts->spi->dev, "DOWN\n"); in ads7846_report_state()
854 touchscreen_report_pos(input, &ts->core_prop, x, y, false); in ads7846_report_state()
855 input_report_abs(input, ABS_PRESSURE, ts->pressure_max - Rt); in ads7846_report_state()
858 dev_vdbg(&ts->spi->dev, "%4d/%4d/%4d\n", x, y, Rt); in ads7846_report_state()
864 struct ads7846 *ts = handle; in ads7846_hard_irq() local
866 return get_pendown_state(ts) ? IRQ_WAKE_THREAD : IRQ_HANDLED; in ads7846_hard_irq()
872 struct ads7846 *ts = handle; in ads7846_irq() local
877 while (!ts->stopped && get_pendown_state(ts)) { in ads7846_irq()
880 ads7846_read_state(ts); in ads7846_irq()
882 if (!ts->stopped) in ads7846_irq()
883 ads7846_report_state(ts); in ads7846_irq()
885 wait_event_timeout(ts->wait, ts->stopped, in ads7846_irq()
889 if (ts->pendown && !ts->stopped) in ads7846_irq()
890 ads7846_report_pen_up(ts); in ads7846_irq()
897 struct ads7846 *ts = dev_get_drvdata(dev); in ads7846_suspend() local
899 mutex_lock(&ts->lock); in ads7846_suspend()
901 if (!ts->suspended) { in ads7846_suspend()
903 if (!ts->disabled) in ads7846_suspend()
904 __ads7846_disable(ts); in ads7846_suspend()
906 if (device_may_wakeup(&ts->spi->dev)) in ads7846_suspend()
907 enable_irq_wake(ts->spi->irq); in ads7846_suspend()
909 ts->suspended = true; in ads7846_suspend()
912 mutex_unlock(&ts->lock); in ads7846_suspend()
919 struct ads7846 *ts = dev_get_drvdata(dev); in ads7846_resume() local
921 mutex_lock(&ts->lock); in ads7846_resume()
923 if (ts->suspended) { in ads7846_resume()
925 ts->suspended = false; in ads7846_resume()
927 if (device_may_wakeup(&ts->spi->dev)) in ads7846_resume()
928 disable_irq_wake(ts->spi->irq); in ads7846_resume()
930 if (!ts->disabled) in ads7846_resume()
931 __ads7846_enable(ts); in ads7846_resume()
934 mutex_unlock(&ts->lock); in ads7846_resume()
942 struct ads7846 *ts, in ads7846_setup_pendown() argument
954 ts->get_pendown_state = pdata->get_pendown_state; in ads7846_setup_pendown()
966 ts->gpio_pendown = pdata->gpio_pendown; in ads7846_setup_pendown()
983 static void ads7846_setup_spi_msg(struct ads7846 *ts, in ads7846_setup_spi_msg() argument
986 struct spi_message *m = &ts->msg[0]; in ads7846_setup_spi_msg()
987 struct spi_transfer *x = ts->xfer; in ads7846_setup_spi_msg()
988 struct ads7846_packet *packet = ts->packet; in ads7846_setup_spi_msg()
991 if (ts->model == 7873) { in ads7846_setup_spi_msg()
997 ts->model = 7846; in ads7846_setup_spi_msg()
1001 ts->msg_count = 1; in ads7846_setup_spi_msg()
1003 m->context = ts; in ads7846_setup_spi_msg()
1005 if (ts->model == 7845) { in ads7846_setup_spi_msg()
1046 ts->msg_count++; in ads7846_setup_spi_msg()
1049 m->context = ts; in ads7846_setup_spi_msg()
1051 if (ts->model == 7845) { in ads7846_setup_spi_msg()
1091 if (ts->model == 7846) { in ads7846_setup_spi_msg()
1092 ts->msg_count++; in ads7846_setup_spi_msg()
1095 m->context = ts; in ads7846_setup_spi_msg()
1124 ts->msg_count++; in ads7846_setup_spi_msg()
1127 m->context = ts; in ads7846_setup_spi_msg()
1158 ts->msg_count++; in ads7846_setup_spi_msg()
1161 m->context = ts; in ads7846_setup_spi_msg()
1163 if (ts->model == 7845) { in ads7846_setup_spi_msg()
1277 struct ads7846 *ts; in ads7846_probe() local
1306 ts = kzalloc(sizeof(struct ads7846), GFP_KERNEL); in ads7846_probe()
1309 if (!ts || !packet || !input_dev) { in ads7846_probe()
1314 spi_set_drvdata(spi, ts); in ads7846_probe()
1316 ts->packet = packet; in ads7846_probe()
1317 ts->spi = spi; in ads7846_probe()
1318 ts->input = input_dev; in ads7846_probe()
1320 mutex_init(&ts->lock); in ads7846_probe()
1321 init_waitqueue_head(&ts->wait); in ads7846_probe()
1332 ts->model = pdata->model ? : 7846; in ads7846_probe()
1333 ts->vref_delay_usecs = pdata->vref_delay_usecs ? : 100; in ads7846_probe()
1334 ts->x_plate_ohms = pdata->x_plate_ohms ? : 400; in ads7846_probe()
1335 ts->vref_mv = pdata->vref_mv; in ads7846_probe()
1339 err = pdata->filter_init(pdata, &ts->filter_data); in ads7846_probe()
1343 ts->filter = pdata->filter; in ads7846_probe()
1344 ts->filter_cleanup = pdata->filter_cleanup; in ads7846_probe()
1346 ts->debounce_max = pdata->debounce_max; in ads7846_probe()
1347 if (ts->debounce_max < 2) in ads7846_probe()
1348 ts->debounce_max = 2; in ads7846_probe()
1349 ts->debounce_tol = pdata->debounce_tol; in ads7846_probe()
1350 ts->debounce_rep = pdata->debounce_rep; in ads7846_probe()
1351 ts->filter = ads7846_debounce_filter; in ads7846_probe()
1352 ts->filter_data = ts; in ads7846_probe()
1354 ts->filter = ads7846_no_filter; in ads7846_probe()
1357 err = ads7846_setup_pendown(spi, ts, pdata); in ads7846_probe()
1362 ts->penirq_recheck_delay_usecs = in ads7846_probe()
1365 ts->wait_for_sync = pdata->wait_for_sync ? : null_wait_for_sync; in ads7846_probe()
1367 snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&spi->dev)); in ads7846_probe()
1368 snprintf(ts->name, sizeof(ts->name), "ADS%d Touchscreen", ts->model); in ads7846_probe()
1370 input_dev->name = ts->name; in ads7846_probe()
1371 input_dev->phys = ts->phys; in ads7846_probe()
1392 touchscreen_parse_properties(ts->input, false, &ts->core_prop); in ads7846_probe()
1393 ts->pressure_max = input_abs_get_max(input_dev, ABS_PRESSURE) ? : ~0; in ads7846_probe()
1399 if (!ts->core_prop.swap_x_y && pdata->swap_xy) { in ads7846_probe()
1401 ts->core_prop.swap_x_y = true; in ads7846_probe()
1404 ads7846_setup_spi_msg(ts, pdata); in ads7846_probe()
1406 ts->reg = regulator_get(&spi->dev, "vcc"); in ads7846_probe()
1407 if (IS_ERR(ts->reg)) { in ads7846_probe()
1408 err = PTR_ERR(ts->reg); in ads7846_probe()
1413 err = regulator_enable(ts->reg); in ads7846_probe()
1423 irq_flags, spi->dev.driver->name, ts); in ads7846_probe()
1430 irq_flags, spi->dev.driver->name, ts); in ads7846_probe()
1438 err = ads784x_hwmon_register(spi, ts); in ads7846_probe()
1448 if (ts->model == 7845) in ads7846_probe()
1475 ads784x_hwmon_unregister(spi, ts); in ads7846_probe()
1477 free_irq(spi->irq, ts); in ads7846_probe()
1479 regulator_disable(ts->reg); in ads7846_probe()
1481 regulator_put(ts->reg); in ads7846_probe()
1483 if (!ts->get_pendown_state) in ads7846_probe()
1484 gpio_free(ts->gpio_pendown); in ads7846_probe()
1486 if (ts->filter_cleanup) in ads7846_probe()
1487 ts->filter_cleanup(ts->filter_data); in ads7846_probe()
1491 kfree(ts); in ads7846_probe()
1497 struct ads7846 *ts = spi_get_drvdata(spi); in ads7846_remove() local
1501 ads7846_disable(ts); in ads7846_remove()
1502 free_irq(ts->spi->irq, ts); in ads7846_remove()
1504 input_unregister_device(ts->input); in ads7846_remove()
1506 ads784x_hwmon_unregister(spi, ts); in ads7846_remove()
1508 regulator_put(ts->reg); in ads7846_remove()
1510 if (!ts->get_pendown_state) { in ads7846_remove()
1515 gpio_free(ts->gpio_pendown); in ads7846_remove()
1518 if (ts->filter_cleanup) in ads7846_remove()
1519 ts->filter_cleanup(ts->filter_data); in ads7846_remove()
1521 kfree(ts->packet); in ads7846_remove()
1522 kfree(ts); in ads7846_remove()