Lines Matching full:ts
220 static int get_pendown_state(struct ads7846 *ts) in get_pendown_state() argument
222 if (ts->get_pendown_state) in get_pendown_state()
223 return ts->get_pendown_state(); in get_pendown_state()
225 return !gpio_get_value(ts->gpio_pendown); in get_pendown_state()
228 static void ads7846_report_pen_up(struct ads7846 *ts) in ads7846_report_pen_up() argument
230 struct input_dev *input = ts->input; in ads7846_report_pen_up()
236 ts->pendown = false; in ads7846_report_pen_up()
237 dev_vdbg(&ts->spi->dev, "UP\n"); in ads7846_report_pen_up()
240 /* Must be called with ts->lock held */
241 static void ads7846_stop(struct ads7846 *ts) in ads7846_stop() argument
243 if (!ts->disabled && !ts->suspended) { in ads7846_stop()
245 ts->stopped = true; in ads7846_stop()
247 wake_up(&ts->wait); in ads7846_stop()
248 disable_irq(ts->spi->irq); in ads7846_stop()
252 /* Must be called with ts->lock held */
253 static void ads7846_restart(struct ads7846 *ts) in ads7846_restart() argument
255 if (!ts->disabled && !ts->suspended) { in ads7846_restart()
257 if (ts->pendown && !get_pendown_state(ts)) in ads7846_restart()
258 ads7846_report_pen_up(ts); in ads7846_restart()
261 ts->stopped = false; in ads7846_restart()
263 enable_irq(ts->spi->irq); in ads7846_restart()
267 /* Must be called with ts->lock held */
268 static void __ads7846_disable(struct ads7846 *ts) in __ads7846_disable() argument
270 ads7846_stop(ts); in __ads7846_disable()
271 regulator_disable(ts->reg); in __ads7846_disable()
279 /* Must be called with ts->lock held */
280 static void __ads7846_enable(struct ads7846 *ts) in __ads7846_enable() argument
284 error = regulator_enable(ts->reg); in __ads7846_enable()
286 dev_err(&ts->spi->dev, "Failed to enable supply: %d\n", error); in __ads7846_enable()
288 ads7846_restart(ts); in __ads7846_enable()
291 static void ads7846_disable(struct ads7846 *ts) in ads7846_disable() argument
293 mutex_lock(&ts->lock); in ads7846_disable()
295 if (!ts->disabled) { in ads7846_disable()
297 if (!ts->suspended) in ads7846_disable()
298 __ads7846_disable(ts); in ads7846_disable()
300 ts->disabled = true; in ads7846_disable()
303 mutex_unlock(&ts->lock); in ads7846_disable()
306 static void ads7846_enable(struct ads7846 *ts) in ads7846_enable() argument
308 mutex_lock(&ts->lock); in ads7846_enable()
310 if (ts->disabled) { in ads7846_enable()
312 ts->disabled = false; in ads7846_enable()
314 if (!ts->suspended) in ads7846_enable()
315 __ads7846_enable(ts); in ads7846_enable()
318 mutex_unlock(&ts->lock); in ads7846_enable()
357 struct ads7846 *ts = dev_get_drvdata(dev); in ads7846_read12_ser() local
368 if (ts->use_internal) { in ads7846_read12_ser()
378 req->xfer[1].delay.value = ts->vref_delay_usecs; in ads7846_read12_ser()
412 mutex_lock(&ts->lock); in ads7846_read12_ser()
413 ads7846_stop(ts); in ads7846_read12_ser()
415 ads7846_restart(ts); in ads7846_read12_ser()
416 mutex_unlock(&ts->lock); in ads7846_read12_ser()
432 struct ads7846 *ts = dev_get_drvdata(dev); in ads7845_read12_ser() local
448 mutex_lock(&ts->lock); in ads7845_read12_ser()
449 ads7846_stop(ts); in ads7845_read12_ser()
451 ads7846_restart(ts); in ads7845_read12_ser()
452 mutex_unlock(&ts->lock); in ads7845_read12_ser()
470 struct ads7846 *ts = dev_get_drvdata(dev); \
471 ssize_t v = ads7846_read12_ser(&ts->spi->dev, \
475 return sprintf(buf, "%u\n", adjust(ts, v)); \
485 static inline unsigned null_adjust(struct ads7846 *ts, ssize_t v) in null_adjust() argument
498 static inline unsigned vaux_adjust(struct ads7846 *ts, ssize_t v) in SHOW()
503 retval *= ts->vref_mv; in SHOW()
509 static inline unsigned vbatt_adjust(struct ads7846 *ts, ssize_t v) in vbatt_adjust() argument
511 unsigned retval = vaux_adjust(ts, v); in vbatt_adjust()
514 if (ts->model == 7846) in vbatt_adjust()
527 struct ads7846 *ts = dev_get_drvdata(dev); in SHOW() local
529 if (ts->model == 7843 && index < 2) /* in0, in1 */ in SHOW()
531 if (ts->model == 7845 && index != 2) /* in0 */ in SHOW()
551 static int ads784x_hwmon_register(struct spi_device *spi, struct ads7846 *ts) in ads784x_hwmon_register() argument
554 switch (ts->model) { in ads784x_hwmon_register()
556 if (!ts->vref_mv) { in ads784x_hwmon_register()
558 ts->vref_mv = 2500; in ads784x_hwmon_register()
559 ts->use_internal = true; in ads784x_hwmon_register()
564 if (!ts->vref_mv) { in ads784x_hwmon_register()
567 ts->model); in ads784x_hwmon_register()
573 ts->hwmon = hwmon_device_register_with_groups(&spi->dev, spi->modalias, in ads784x_hwmon_register()
574 ts, ads7846_attr_groups); in ads784x_hwmon_register()
576 return PTR_ERR_OR_ZERO(ts->hwmon); in ads784x_hwmon_register()
580 struct ads7846 *ts) in ads784x_hwmon_unregister() argument
582 if (ts->hwmon) in ads784x_hwmon_unregister()
583 hwmon_device_unregister(ts->hwmon); in ads784x_hwmon_unregister()
588 struct ads7846 *ts) in ads784x_hwmon_register() argument
594 struct ads7846 *ts) in ads784x_hwmon_unregister() argument
602 struct ads7846 *ts = dev_get_drvdata(dev); in ads7846_pen_down_show() local
604 return sprintf(buf, "%u\n", ts->pendown); in ads7846_pen_down_show()
612 struct ads7846 *ts = dev_get_drvdata(dev); in ads7846_disable_show() local
614 return sprintf(buf, "%u\n", ts->disabled); in ads7846_disable_show()
621 struct ads7846 *ts = dev_get_drvdata(dev); in ads7846_disable_store() local
630 ads7846_disable(ts); in ads7846_disable_store()
632 ads7846_enable(ts); in ads7846_disable_store()
657 struct ads7846 *ts = ads; in ads7846_debounce_filter() local
659 if (!ts->read_cnt || (abs(ts->last_read - *val) > ts->debounce_tol)) { in ads7846_debounce_filter()
661 ts->read_rep = 0; in ads7846_debounce_filter()
666 if (ts->read_cnt < ts->debounce_max) { in ads7846_debounce_filter()
667 ts->last_read = *val; in ads7846_debounce_filter()
668 ts->read_cnt++; in ads7846_debounce_filter()
677 ts->read_cnt = 0; in ads7846_debounce_filter()
681 if (++ts->read_rep > ts->debounce_rep) { in ads7846_debounce_filter()
686 ts->read_cnt = 0; in ads7846_debounce_filter()
687 ts->read_rep = 0; in ads7846_debounce_filter()
691 ts->read_cnt++; in ads7846_debounce_filter()
712 static void ads7846_set_cmd_val(struct ads7846 *ts, enum ads7846_cmds cmd_idx, in ads7846_set_cmd_val() argument
715 struct ads7846_packet *packet = ts->packet; in ads7846_set_cmd_val()
774 static int ads7846_filter(struct ads7846 *ts) in ads7846_filter() argument
776 struct ads7846_packet *packet = ts->packet; in ads7846_filter()
790 action = ts->filter(ts->filter_data, cmd_idx, &val); in ads7846_filter()
795 ads7846_set_cmd_val(ts, cmd_idx, val); in ads7846_filter()
807 static void ads7846_read_state(struct ads7846 *ts) in ads7846_read_state() argument
809 struct ads7846_packet *packet = ts->packet; in ads7846_read_state()
817 ts->wait_for_sync(); in ads7846_read_state()
819 m = &ts->msg[msg_idx]; in ads7846_read_state()
820 error = spi_sync(ts->spi, m); in ads7846_read_state()
822 dev_err(&ts->spi->dev, "spi_sync --> %d\n", error); in ads7846_read_state()
827 error = ads7846_filter(ts); in ads7846_read_state()
835 static void ads7846_report_state(struct ads7846 *ts) in ads7846_report_state() argument
837 struct ads7846_packet *packet = ts->packet; in ads7846_report_state()
843 if (ts->model == 7845) { in ads7846_report_state()
855 if (ts->model == 7843 || ts->model == 7845) { in ads7846_report_state()
856 Rt = ts->pressure_max / 2; in ads7846_report_state()
861 Rt *= ts->x_plate_ohms; in ads7846_report_state()
875 if (packet->ignore || Rt > ts->pressure_max) { in ads7846_report_state()
876 dev_vdbg(&ts->spi->dev, "ignored %d pressure %d\n", in ads7846_report_state()
885 if (ts->penirq_recheck_delay_usecs) { in ads7846_report_state()
886 udelay(ts->penirq_recheck_delay_usecs); in ads7846_report_state()
887 if (!get_pendown_state(ts)) in ads7846_report_state()
901 struct input_dev *input = ts->input; in ads7846_report_state()
903 if (!ts->pendown) { in ads7846_report_state()
905 ts->pendown = true; in ads7846_report_state()
906 dev_vdbg(&ts->spi->dev, "DOWN\n"); in ads7846_report_state()
909 touchscreen_report_pos(input, &ts->core_prop, x, y, false); in ads7846_report_state()
910 input_report_abs(input, ABS_PRESSURE, ts->pressure_max - Rt); in ads7846_report_state()
913 dev_vdbg(&ts->spi->dev, "%4d/%4d/%4d\n", x, y, Rt); in ads7846_report_state()
919 struct ads7846 *ts = handle; in ads7846_hard_irq() local
921 return get_pendown_state(ts) ? IRQ_WAKE_THREAD : IRQ_HANDLED; in ads7846_hard_irq()
927 struct ads7846 *ts = handle; in ads7846_irq() local
932 while (!ts->stopped && get_pendown_state(ts)) { in ads7846_irq()
935 ads7846_read_state(ts); in ads7846_irq()
937 if (!ts->stopped) in ads7846_irq()
938 ads7846_report_state(ts); in ads7846_irq()
940 wait_event_timeout(ts->wait, ts->stopped, in ads7846_irq()
944 if (ts->pendown && !ts->stopped) in ads7846_irq()
945 ads7846_report_pen_up(ts); in ads7846_irq()
952 struct ads7846 *ts = dev_get_drvdata(dev); in ads7846_suspend() local
954 mutex_lock(&ts->lock); in ads7846_suspend()
956 if (!ts->suspended) { in ads7846_suspend()
958 if (!ts->disabled) in ads7846_suspend()
959 __ads7846_disable(ts); in ads7846_suspend()
961 if (device_may_wakeup(&ts->spi->dev)) in ads7846_suspend()
962 enable_irq_wake(ts->spi->irq); in ads7846_suspend()
964 ts->suspended = true; in ads7846_suspend()
967 mutex_unlock(&ts->lock); in ads7846_suspend()
974 struct ads7846 *ts = dev_get_drvdata(dev); in ads7846_resume() local
976 mutex_lock(&ts->lock); in ads7846_resume()
978 if (ts->suspended) { in ads7846_resume()
980 ts->suspended = false; in ads7846_resume()
982 if (device_may_wakeup(&ts->spi->dev)) in ads7846_resume()
983 disable_irq_wake(ts->spi->irq); in ads7846_resume()
985 if (!ts->disabled) in ads7846_resume()
986 __ads7846_enable(ts); in ads7846_resume()
989 mutex_unlock(&ts->lock); in ads7846_resume()
997 struct ads7846 *ts, in ads7846_setup_pendown() argument
1009 ts->get_pendown_state = pdata->get_pendown_state; in ads7846_setup_pendown()
1021 ts->gpio_pendown = pdata->gpio_pendown; in ads7846_setup_pendown()
1038 static int ads7846_setup_spi_msg(struct ads7846 *ts, in ads7846_setup_spi_msg() argument
1041 struct spi_message *m = &ts->msg[0]; in ads7846_setup_spi_msg()
1042 struct spi_transfer *x = ts->xfer; in ads7846_setup_spi_msg()
1043 struct ads7846_packet *packet = ts->packet; in ads7846_setup_spi_msg()
1051 time = NSEC_PER_SEC / ts->spi->max_speed_hz; in ads7846_setup_spi_msg()
1056 if (ts->debounce_max && ts->debounce_rep) in ads7846_setup_spi_msg()
1057 /* ads7846_debounce_filter() is making ts->debounce_rep + 2 in ads7846_setup_spi_msg()
1059 packet->count = ts->debounce_rep + 2; in ads7846_setup_spi_msg()
1063 if (ts->model == 7846) in ads7846_setup_spi_msg()
1087 packet->tx = devm_kzalloc(&ts->spi->dev, size, GFP_KERNEL); in ads7846_setup_spi_msg()
1091 packet->rx = devm_kzalloc(&ts->spi->dev, size, GFP_KERNEL); in ads7846_setup_spi_msg()
1095 if (ts->model == 7873) { in ads7846_setup_spi_msg()
1101 ts->model = 7846; in ads7846_setup_spi_msg()
1105 ts->msg_count = 1; in ads7846_setup_spi_msg()
1107 m->context = ts; in ads7846_setup_spi_msg()
1221 struct ads7846 *ts; in ads7846_probe() local
1250 ts = kzalloc(sizeof(struct ads7846), GFP_KERNEL); in ads7846_probe()
1253 if (!ts || !packet || !input_dev) { in ads7846_probe()
1258 spi_set_drvdata(spi, ts); in ads7846_probe()
1260 ts->packet = packet; in ads7846_probe()
1261 ts->spi = spi; in ads7846_probe()
1262 ts->input = input_dev; in ads7846_probe()
1264 mutex_init(&ts->lock); in ads7846_probe()
1265 init_waitqueue_head(&ts->wait); in ads7846_probe()
1276 ts->model = pdata->model ? : 7846; in ads7846_probe()
1277 ts->vref_delay_usecs = pdata->vref_delay_usecs ? : 100; in ads7846_probe()
1278 ts->x_plate_ohms = pdata->x_plate_ohms ? : 400; in ads7846_probe()
1279 ts->vref_mv = pdata->vref_mv; in ads7846_probe()
1283 err = pdata->filter_init(pdata, &ts->filter_data); in ads7846_probe()
1287 ts->filter = pdata->filter; in ads7846_probe()
1288 ts->filter_cleanup = pdata->filter_cleanup; in ads7846_probe()
1290 ts->debounce_max = pdata->debounce_max; in ads7846_probe()
1291 if (ts->debounce_max < 2) in ads7846_probe()
1292 ts->debounce_max = 2; in ads7846_probe()
1293 ts->debounce_tol = pdata->debounce_tol; in ads7846_probe()
1294 ts->debounce_rep = pdata->debounce_rep; in ads7846_probe()
1295 ts->filter = ads7846_debounce_filter; in ads7846_probe()
1296 ts->filter_data = ts; in ads7846_probe()
1298 ts->filter = ads7846_no_filter; in ads7846_probe()
1301 err = ads7846_setup_pendown(spi, ts, pdata); in ads7846_probe()
1306 ts->penirq_recheck_delay_usecs = in ads7846_probe()
1309 ts->wait_for_sync = pdata->wait_for_sync ? : null_wait_for_sync; in ads7846_probe()
1311 snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&spi->dev)); in ads7846_probe()
1312 snprintf(ts->name, sizeof(ts->name), "ADS%d Touchscreen", ts->model); in ads7846_probe()
1314 input_dev->name = ts->name; in ads7846_probe()
1315 input_dev->phys = ts->phys; in ads7846_probe()
1328 if (ts->model != 7845) in ads7846_probe()
1337 touchscreen_parse_properties(ts->input, false, &ts->core_prop); in ads7846_probe()
1338 ts->pressure_max = input_abs_get_max(input_dev, ABS_PRESSURE) ? : ~0; in ads7846_probe()
1344 if (!ts->core_prop.swap_x_y && pdata->swap_xy) { in ads7846_probe()
1346 ts->core_prop.swap_x_y = true; in ads7846_probe()
1349 ads7846_setup_spi_msg(ts, pdata); in ads7846_probe()
1351 ts->reg = regulator_get(&spi->dev, "vcc"); in ads7846_probe()
1352 if (IS_ERR(ts->reg)) { in ads7846_probe()
1353 err = PTR_ERR(ts->reg); in ads7846_probe()
1358 err = regulator_enable(ts->reg); in ads7846_probe()
1368 irq_flags, spi->dev.driver->name, ts); in ads7846_probe()
1375 irq_flags, spi->dev.driver->name, ts); in ads7846_probe()
1383 err = ads784x_hwmon_register(spi, ts); in ads7846_probe()
1393 if (ts->model == 7845) in ads7846_probe()
1420 ads784x_hwmon_unregister(spi, ts); in ads7846_probe()
1422 free_irq(spi->irq, ts); in ads7846_probe()
1424 regulator_disable(ts->reg); in ads7846_probe()
1426 regulator_put(ts->reg); in ads7846_probe()
1428 if (!ts->get_pendown_state) in ads7846_probe()
1429 gpio_free(ts->gpio_pendown); in ads7846_probe()
1431 if (ts->filter_cleanup) in ads7846_probe()
1432 ts->filter_cleanup(ts->filter_data); in ads7846_probe()
1436 kfree(ts); in ads7846_probe()
1442 struct ads7846 *ts = spi_get_drvdata(spi); in ads7846_remove() local
1446 ads7846_disable(ts); in ads7846_remove()
1447 free_irq(ts->spi->irq, ts); in ads7846_remove()
1449 input_unregister_device(ts->input); in ads7846_remove()
1451 ads784x_hwmon_unregister(spi, ts); in ads7846_remove()
1453 regulator_put(ts->reg); in ads7846_remove()
1455 if (!ts->get_pendown_state) { in ads7846_remove()
1460 gpio_free(ts->gpio_pendown); in ads7846_remove()
1463 if (ts->filter_cleanup) in ads7846_remove()
1464 ts->filter_cleanup(ts->filter_data); in ads7846_remove()
1466 kfree(ts->packet); in ads7846_remove()
1467 kfree(ts); in ads7846_remove()