input/touchscreen/stmpe-ts.c

46 #define STMPE_TS_NAME			"stmpe-ts"
103 	struct stmpe_touch *ts =
106 	int_sta = stmpe_reg_read(ts->stmpe, STMPE_REG_INT_STA);
117 		int_sta = stmpe_reg_read(ts->stmpe, STMPE_REG_INT_STA);
122 	__stmpe_reset_fifo(ts->stmpe);
124 	input_report_abs(ts->idev, ABS_PRESSURE, 0);
125 	input_report_key(ts->idev, BTN_TOUCH, 0);
126 	input_sync(ts->idev);
133 	struct stmpe_touch *ts = data;
139 	cancel_delayed_work_sync(&ts->work);
147 	stmpe_set_bits(ts->stmpe, STMPE_REG_TSC_CTRL,
150 	stmpe_block_read(ts->stmpe, STMPE_REG_TSC_DATA_XYZ, 4, data_set);
156 	touchscreen_report_pos(ts->idev, &ts->prop, x, y, false);
157 	input_report_abs(ts->idev, ABS_PRESSURE, z);
158 	input_report_key(ts->idev, BTN_TOUCH, 1);
159 	input_sync(ts->idev);
162 	__stmpe_reset_fifo(ts->stmpe);
165 	stmpe_set_bits(ts->stmpe, STMPE_REG_TSC_CTRL,
169 	schedule_delayed_work(&ts->work, msecs_to_jiffies(50));
174 static int stmpe_init_hw(struct stmpe_touch *ts)
178 	struct stmpe *stmpe = ts->stmpe;
179 	struct device *dev = ts->dev;
193 	tsc_cfg = STMPE_AVE_CTRL(ts->ave_ctrl) |
194 		  STMPE_DET_DELAY(ts->touch_det_delay) |
195 		  STMPE_SETTLING(ts->settling);
206 			STMPE_FRACTION_Z(0xff), STMPE_FRACTION_Z(ts->fraction_z));
213 			STMPE_I_DRIVE(0xff), STMPE_I_DRIVE(ts->i_drive));
238 	struct stmpe_touch *ts = input_get_drvdata(dev);
241 	ret = __stmpe_reset_fifo(ts->stmpe);
245 	return stmpe_set_bits(ts->stmpe, STMPE_REG_TSC_CTRL,
251 	struct stmpe_touch *ts = input_get_drvdata(dev);
253 	cancel_delayed_work_sync(&ts->work);
255 	stmpe_set_bits(ts->stmpe, STMPE_REG_TSC_CTRL,
260 					struct stmpe_touch *ts)
267 			ts->stmpe->sample_time = val;
269 			ts->stmpe->mod_12b = val;
271 			ts->stmpe->ref_sel = val;
273 			ts->stmpe->adc_freq = val;
275 			ts->ave_ctrl = val;
277 			ts->touch_det_delay = val;
279 			ts->settling = val;
281 			ts->fraction_z = val;
283 			ts->i_drive = val;
290 	struct stmpe_touch *ts;
299 	ts = devm_kzalloc(&pdev->dev, sizeof(*ts), GFP_KERNEL);
300 	if (!ts)
307 	platform_set_drvdata(pdev, ts);
308 	ts->stmpe = stmpe;
309 	ts->idev = idev;
310 	ts->dev = &pdev->dev;
312 	stmpe_ts_get_platform_info(pdev, ts);
314 	INIT_DELAYED_WORK(&ts->work, stmpe_work);
318 					  IRQF_ONESHOT, STMPE_TS_NAME, ts);
324 	error = stmpe_init_hw(ts);
335 	input_set_drvdata(idev, ts);
342 	touchscreen_parse_properties(idev, false, &ts->prop);
355 	struct stmpe_touch *ts = platform_get_drvdata(pdev);
357 	stmpe_disable(ts->stmpe, STMPE_BLOCK_TOUCHSCREEN);
370 	{ .compatible = "st,stmpe-ts", },