Lines Matching refs:ts
135 static int ad7879_read(struct ad7879 *ts, u8 reg)
140 error = regmap_read(ts->regmap, reg, &val);
142 dev_err(ts->dev, "failed to read register %#02x: %d\n",
150 static int ad7879_write(struct ad7879 *ts, u8 reg, u16 val)
154 error = regmap_write(ts->regmap, reg, val);
156 dev_err(ts->dev,
165 static int ad7879_report(struct ad7879 *ts)
167 struct input_dev *input_dev = ts->input;
171 x = ts->conversion_data[AD7879_SEQ_XPOS] & MAX_12BIT;
172 y = ts->conversion_data[AD7879_SEQ_YPOS] & MAX_12BIT;
173 z1 = ts->conversion_data[AD7879_SEQ_Z1] & MAX_12BIT;
174 z2 = ts->conversion_data[AD7879_SEQ_Z2] & MAX_12BIT;
176 if (ts->swap_xy)
193 Rt = (z2 - z1) * x * ts->x_plate_ohms;
210 if (timer_pending(&ts->timer)) {
213 input_report_abs(input_dev, ABS_X, ts->x);
214 input_report_abs(input_dev, ABS_Y, ts->y);
215 input_report_abs(input_dev, ABS_PRESSURE, ts->Rt);
219 ts->x = x;
220 ts->y = y;
221 ts->Rt = Rt;
229 static void ad7879_ts_event_release(struct ad7879 *ts)
231 struct input_dev *input_dev = ts->input;
240 struct ad7879 *ts = from_timer(ts, t, timer);
242 ad7879_ts_event_release(ts);
247 struct ad7879 *ts = handle;
250 error = regmap_bulk_read(ts->regmap, AD7879_REG_XPLUS,
251 ts->conversion_data, AD7879_NR_SENSE);
253 dev_err_ratelimited(ts->dev, "failed to read %#02x: %d\n",
255 else if (!ad7879_report(ts))
256 mod_timer(&ts->timer, jiffies + TS_PEN_UP_TIMEOUT);
261 static void __ad7879_enable(struct ad7879 *ts)
263 ad7879_write(ts, AD7879_REG_CTRL2, ts->cmd_crtl2);
264 ad7879_write(ts, AD7879_REG_CTRL3, ts->cmd_crtl3);
265 ad7879_write(ts, AD7879_REG_CTRL1, ts->cmd_crtl1);
267 enable_irq(ts->irq);
270 static void __ad7879_disable(struct ad7879 *ts)
272 u16 reg = (ts->cmd_crtl2 & ~AD7879_PM(-1)) |
274 disable_irq(ts->irq);
276 if (del_timer_sync(&ts->timer))
277 ad7879_ts_event_release(ts);
279 ad7879_write(ts, AD7879_REG_CTRL2, reg);
285 struct ad7879 *ts = input_get_drvdata(input);
288 if (!ts->disabled && !ts->suspended)
289 __ad7879_enable(ts);
296 struct ad7879 *ts = input_get_drvdata(input);
299 if (!ts->disabled && !ts->suspended)
300 __ad7879_disable(ts);
305 struct ad7879 *ts = dev_get_drvdata(dev);
307 mutex_lock(&ts->input->mutex);
309 if (!ts->suspended && !ts->disabled && input_device_enabled(ts->input))
310 __ad7879_disable(ts);
312 ts->suspended = true;
314 mutex_unlock(&ts->input->mutex);
321 struct ad7879 *ts = dev_get_drvdata(dev);
323 mutex_lock(&ts->input->mutex);
325 if (ts->suspended && !ts->disabled && input_device_enabled(ts->input))
326 __ad7879_enable(ts);
328 ts->suspended = false;
330 mutex_unlock(&ts->input->mutex);
338 static void ad7879_toggle(struct ad7879 *ts, bool disable)
340 mutex_lock(&ts->input->mutex);
342 if (!ts->suspended && input_device_enabled(ts->input)) {
345 if (ts->disabled)
346 __ad7879_enable(ts);
348 if (!ts->disabled)
349 __ad7879_disable(ts);
353 ts->disabled = disable;
355 mutex_unlock(&ts->input->mutex);
361 struct ad7879 *ts = dev_get_drvdata(dev);
363 return sprintf(buf, "%u\n", ts->disabled);
370 struct ad7879 *ts = dev_get_drvdata(dev);
378 ad7879_toggle(ts, val);
398 struct ad7879 *ts = gpiochip_get_data(chip);
401 mutex_lock(&ts->mutex);
402 ts->cmd_crtl2 |= AD7879_GPIO_EN | AD7879_GPIODIR | AD7879_GPIOPOL;
403 err = ad7879_write(ts, AD7879_REG_CTRL2, ts->cmd_crtl2);
404 mutex_unlock(&ts->mutex);
412 struct ad7879 *ts = gpiochip_get_data(chip);
415 mutex_lock(&ts->mutex);
416 ts->cmd_crtl2 &= ~AD7879_GPIODIR;
417 ts->cmd_crtl2 |= AD7879_GPIO_EN | AD7879_GPIOPOL;
419 ts->cmd_crtl2 |= AD7879_GPIO_DATA;
421 ts->cmd_crtl2 &= ~AD7879_GPIO_DATA;
423 err = ad7879_write(ts, AD7879_REG_CTRL2, ts->cmd_crtl2);
424 mutex_unlock(&ts->mutex);
431 struct ad7879 *ts = gpiochip_get_data(chip);
434 mutex_lock(&ts->mutex);
435 val = ad7879_read(ts, AD7879_REG_CTRL2);
436 mutex_unlock(&ts->mutex);
444 struct ad7879 *ts = gpiochip_get_data(chip);
446 mutex_lock(&ts->mutex);
448 ts->cmd_crtl2 |= AD7879_GPIO_DATA;
450 ts->cmd_crtl2 &= ~AD7879_GPIO_DATA;
452 ad7879_write(ts, AD7879_REG_CTRL2, ts->cmd_crtl2);
453 mutex_unlock(&ts->mutex);
456 static int ad7879_gpio_add(struct ad7879 *ts)
460 mutex_init(&ts->mutex);
463 if (!device_property_read_bool(ts->dev, "gpio-controller"))
466 ts->gc.direction_input = ad7879_gpio_direction_input;
467 ts->gc.direction_output = ad7879_gpio_direction_output;
468 ts->gc.get = ad7879_gpio_get_value;
469 ts->gc.set = ad7879_gpio_set_value;
470 ts->gc.can_sleep = 1;
471 ts->gc.base = -1;
472 ts->gc.ngpio = 1;
473 ts->gc.label = "AD7879-GPIO";
474 ts->gc.owner = THIS_MODULE;
475 ts->gc.parent = ts->dev;
477 ret = devm_gpiochip_add_data(ts->dev, &ts->gc, ts);
479 dev_err(ts->dev, "failed to register gpio %d\n",
480 ts->gc.base);
485 static int ad7879_gpio_add(struct ad7879 *ts)
491 static int ad7879_parse_dt(struct device *dev, struct ad7879 *ts)
501 ts->x_plate_ohms = (u16)tmp;
504 &ts->first_conversion_delay);
506 &ts->acquisition_time);
507 device_property_read_u8(dev, "adi,median-filter-size", &ts->median);
508 device_property_read_u8(dev, "adi,averaging", &ts->averaging);
510 &ts->pen_down_acc_interval);
512 ts->swap_xy = device_property_read_bool(dev, "touchscreen-swapped-x-y");
520 struct ad7879 *ts;
530 ts = devm_kzalloc(dev, sizeof(*ts), GFP_KERNEL);
531 if (!ts)
534 err = ad7879_parse_dt(dev, ts);
544 ts->dev = dev;
545 ts->input = input_dev;
546 ts->irq = irq;
547 ts->regmap = regmap;
549 timer_setup(&ts->timer, ad7879_timer, 0);
550 snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(dev));
553 input_dev->phys = ts->phys;
560 input_set_drvdata(input_dev, ts);
573 err = ad7879_write(ts, AD7879_REG_CTRL2, AD7879_RESET);
579 revid = ad7879_read(ts, AD7879_REG_REVID);
588 ts->cmd_crtl3 = AD7879_YPLUS_BIT |
596 ts->cmd_crtl2 = AD7879_PM(AD7879_PM_DYN) | AD7879_DFR |
597 AD7879_AVG(ts->averaging) |
598 AD7879_MFS(ts->median) |
599 AD7879_FCD(ts->first_conversion_delay);
601 ts->cmd_crtl1 = AD7879_MODE_INT | AD7879_MODE_SEQ1 |
602 AD7879_ACQ(ts->acquisition_time) |
603 AD7879_TMR(ts->pen_down_acc_interval);
605 err = devm_request_threaded_irq(dev, ts->irq, NULL, ad7879_irq,
607 dev_name(dev), ts);
613 __ad7879_disable(ts);
619 err = ad7879_gpio_add(ts);
627 dev_set_drvdata(dev, ts);