1 // SPDX-License-Identifier: GPL-2.0
3  * ILITEK Touch IC driver for 23XX, 25XX and Lego series
98 	struct i2c_client *client = ts->client;  in ilitek_i2c_write_and_read()
101 			.addr = client->addr,  in ilitek_i2c_write_and_read()
107 			.addr = client->addr,  in ilitek_i2c_write_and_read()
115 		error = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));  in ilitek_i2c_write_and_read()
120 			error = i2c_transfer(client->adapter, msgs, 1);  in ilitek_i2c_write_and_read()
128 			error = i2c_transfer(client->adapter, msgs + 1, 1);  in ilitek_i2c_write_and_read()
139 			      unsigned int x, unsigned int y)  in ilitek_touch_down()  argument
141 	struct input_dev *input = ts->input_dev;  in ilitek_touch_down()
146 	touchscreen_report_pos(input, &ts->prop, x, y, true);  in ilitek_touch_down()
157 	struct input_dev *input = ts->input_dev;  in ilitek_process_and_report_v6()
158 	struct device *dev = &ts->client->dev;  in ilitek_process_and_report_v6()
159 	unsigned int x, y, status, id;  in ilitek_process_and_report_v6()  local
163 		dev_err(dev, "get touch info failed, err:%d\n", error);  in ilitek_process_and_report_v6()
168 		dev_err(dev, "get touch info failed. Wrong id: 0x%02X\n", buf[0]);  in ilitek_process_and_report_v6()
169 		return -EINVAL;  in ilitek_process_and_report_v6()
173 	if (report_max_point > ts->max_tp) {  in ilitek_process_and_report_v6()
174 		dev_err(dev, "FW report max point:%d > panel info. max:%d\n",  in ilitek_process_and_report_v6()
175 			report_max_point, ts->max_tp);  in ilitek_process_and_report_v6()
176 		return -EINVAL;  in ilitek_process_and_report_v6()
184 			dev_err(dev, "get touch info. failed, cnt:%d, err:%d\n",  in ilitek_process_and_report_v6()
197 		x = get_unaligned_le16(buf + i * packet_len + 2);  in ilitek_process_and_report_v6()
200 		if (x > ts->screen_max_x || x < ts->screen_min_x ||  in ilitek_process_and_report_v6()
201 		    y > ts->screen_max_y || y < ts->screen_min_y) {  in ilitek_process_and_report_v6()
202 			dev_warn(dev, "invalid position, X[%d,%u,%d], Y[%d,%u,%d]\n",  in ilitek_process_and_report_v6()
203 				 ts->screen_min_x, x, ts->screen_max_x,  in ilitek_process_and_report_v6()
204 				 ts->screen_min_y, y, ts->screen_max_y);  in ilitek_process_and_report_v6()
208 		ilitek_touch_down(ts, id, x, y);  in ilitek_process_and_report_v6()
217 /* APIs of cmds for ILITEK Touch IC */
225 		return -EINVAL;  in api_protocol_set_cmd()
227 	cmd = ts->ptl_cb_func[idx].cmd;  in api_protocol_set_cmd()
228 	error = ts->ptl_cb_func[idx].func(ts, cmd, inbuf, outbuf);  in api_protocol_set_cmd()
246 	ts->ptl.ver = get_unaligned_be16(outbuf);  in api_protocol_get_ptl_ver()
247 	ts->ptl.ver_major = outbuf[0];  in api_protocol_get_ptl_ver()
263 	ts->mcu_ver = get_unaligned_le16(outbuf);  in api_protocol_get_mcu_ver()
264 	memset(ts->product_id, 0, sizeof(ts->product_id));  in api_protocol_get_mcu_ver()
265 	memcpy(ts->product_id, outbuf + 6, 26);  in api_protocol_get_mcu_ver()
281 	memcpy(ts->firmware_ver, outbuf, 8);  in api_protocol_get_fw_ver()
297 	ts->screen_min_x = get_unaligned_le16(outbuf);  in api_protocol_get_scrn_res()
298 	ts->screen_min_y = get_unaligned_le16(outbuf + 2);  in api_protocol_get_scrn_res()
299 	ts->screen_max_x = get_unaligned_le16(outbuf + 4);  in api_protocol_get_scrn_res()
300 	ts->screen_max_y = get_unaligned_le16(outbuf + 6);  in api_protocol_get_scrn_res()
316 	ts->max_tp = outbuf[8];  in api_protocol_get_tp_res()
317 	if (ts->max_tp > ILITEK_SUPPORT_MAX_POINT) {  in api_protocol_get_tp_res()
318 		dev_err(&ts->client->dev, "Invalid MAX_TP:%d from FW\n",  in api_protocol_get_tp_res()
319 			ts->max_tp);  in api_protocol_get_tp_res()
320 		return -EINVAL;  in api_protocol_get_tp_res()
337 	ts->ic_mode = outbuf[0];  in api_protocol_get_ic_mode()
398 	if (ts->reset_gpio) {  in ilitek_reset()
399 		gpiod_set_value(ts->reset_gpio, 1);  in ilitek_reset()
401 		gpiod_set_value(ts->reset_gpio, 0);  in ilitek_reset()
411 	ts->ptl_cb_func = ptl_func_map;  in ilitek_protocol_init()
412 	ts->reset_time = 600;  in ilitek_protocol_init()
419 	if (ts->ptl.ver_major == 0x3 ||  in ilitek_protocol_init()
420 	    ts->ptl.ver == BL_V1_6 ||  in ilitek_protocol_init()
421 	    ts->ptl.ver == BL_V1_7)  in ilitek_protocol_init()
422 		return -EINVAL;  in ilitek_protocol_init()
469 		return -ENOMEM;  in ilitek_input_dev_init()
471 	ts->input_dev = input;  in ilitek_input_dev_init()
472 	input->name = ILITEK_TS_NAME;  in ilitek_input_dev_init()
473 	input->id.bustype = BUS_I2C;  in ilitek_input_dev_init()
475 	__set_bit(INPUT_PROP_DIRECT, input->propbit);  in ilitek_input_dev_init()
478 			     ts->screen_min_x, ts->screen_max_x, 0, 0);  in ilitek_input_dev_init()
480 			     ts->screen_min_y, ts->screen_max_y, 0, 0);  in ilitek_input_dev_init()
482 	touchscreen_parse_properties(input, true, &ts->prop);  in ilitek_input_dev_init()
484 	error = input_mt_init_slots(input, ts->max_tp,  in ilitek_input_dev_init()
507 		dev_err(&ts->client->dev, "[%s] err:%d\n", __func__, error);  in ilitek_i2c_isr()
521 			  "fw version: [%02X%02X.%02X%02X.%02X%02X.%02X%02X]\n",  in firmware_version_show()
522 			  ts->firmware_ver[0], ts->firmware_ver[1],  in firmware_version_show()
523 			  ts->firmware_ver[2], ts->firmware_ver[3],  in firmware_version_show()
524 			  ts->firmware_ver[4], ts->firmware_ver[5],  in firmware_version_show()
525 			  ts->firmware_ver[6], ts->firmware_ver[7]);  in firmware_version_show()
535 	return sysfs_emit(buf, "product id: [%04X], module: [%s]\n",  in product_id_show()
536 			  ts->mcu_ver, ts->product_id);  in product_id_show()
550 	struct device *dev = &client->dev;  in ilitek_ts_i2c_probe()
553 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {  in ilitek_ts_i2c_probe()
555 		return -ENXIO;  in ilitek_ts_i2c_probe()
560 		return -ENOMEM;  in ilitek_ts_i2c_probe()
562 	ts->client = client;  in ilitek_ts_i2c_probe()
565 	ts->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);  in ilitek_ts_i2c_probe()
566 	if (IS_ERR(ts->reset_gpio)) {  in ilitek_ts_i2c_probe()
567 		error = PTR_ERR(ts->reset_gpio);  in ilitek_ts_i2c_probe()
592 	error = devm_request_threaded_irq(dev, ts->client->irq,  in ilitek_ts_i2c_probe()
609 	disable_irq(client->irq);  in ilitek_suspend()
631 		ilitek_reset(ts, ts->reset_time);  in ilitek_resume()
634 	enable_irq(client->irq);  in ilitek_resume()