298 static int elants_i2c_calibrate(struct elants_data *ts)  in elants_i2c_calibrate()  argument
300 	struct i2c_client *client = ts->client;  in elants_i2c_calibrate()
308 	ts->state = ELAN_WAIT_RECALIBRATION;  in elants_i2c_calibrate()
309 	reinit_completion(&ts->cmd_done);  in elants_i2c_calibrate()
316 	ret = wait_for_completion_interruptible_timeout(&ts->cmd_done,  in elants_i2c_calibrate()
319 	ts->state = ELAN_STATE_NORMAL;  in elants_i2c_calibrate()
329 	if (memcmp(rek_resp, ts->cmd_resp, sizeof(rek_resp))) {  in elants_i2c_calibrate()
332 			(int)sizeof(ts->cmd_resp), ts->cmd_resp);  in elants_i2c_calibrate()
365 static int elants_i2c_query_hw_version(struct elants_data *ts)  in elants_i2c_query_hw_version()  argument
367 	struct i2c_client *client = ts->client;  in elants_i2c_query_hw_version()
380 		ts->hw_version = elants_i2c_parse_version(resp);  in elants_i2c_query_hw_version()
381 		if (ts->hw_version != 0xffff)  in elants_i2c_query_hw_version()
385 	dev_err(&client->dev, "Invalid fw id: %#04x\n", ts->hw_version);  in elants_i2c_query_hw_version()
390 static int elants_i2c_query_fw_version(struct elants_data *ts)  in elants_i2c_query_fw_version()  argument
392 	struct i2c_client *client = ts->client;  in elants_i2c_query_fw_version()
405 		ts->fw_version = elants_i2c_parse_version(resp);  in elants_i2c_query_fw_version()
406 		if (ts->fw_version != 0x0000 && ts->fw_version != 0xffff)  in elants_i2c_query_fw_version()
413 	dev_err(&client->dev, "Invalid fw ver: %#04x\n", ts->fw_version);  in elants_i2c_query_fw_version()
418 static int elants_i2c_query_test_version(struct elants_data *ts)  in elants_i2c_query_test_version()  argument
420 	struct i2c_client *client = ts->client;  in elants_i2c_query_test_version()
435 	ts->test_version = version >> 8;  in elants_i2c_query_test_version()
436 	ts->solution_version = version & 0xff;  in elants_i2c_query_test_version()
441 static int elants_i2c_query_bc_version(struct elants_data *ts)  in elants_i2c_query_bc_version()  argument
443 	struct i2c_client *client = ts->client;  in elants_i2c_query_bc_version()
456 	ts->bc_version = version >> 8;  in elants_i2c_query_bc_version()
457 	ts->iap_version = version & 0xff;  in elants_i2c_query_bc_version()
462 static int elants_i2c_query_ts_info_ektf(struct elants_data *ts)  in elants_i2c_query_ts_info_ektf()  argument
464 	struct i2c_client *client = ts->client;  in elants_i2c_query_ts_info_ektf()
496 	ts->phy_x = phy_x;  in elants_i2c_query_ts_info_ektf()
497 	ts->phy_y = phy_y;  in elants_i2c_query_ts_info_ektf()
500 	ts->x_max = 2240 - 1;  in elants_i2c_query_ts_info_ektf()
501 	ts->y_max = 1408 - 1;  in elants_i2c_query_ts_info_ektf()
506 static int elants_i2c_query_ts_info_ekth(struct elants_data *ts)  in elants_i2c_query_ts_info_ekth()  argument
508 	struct i2c_client *client = ts->client;  in elants_i2c_query_ts_info_ekth()
538 	ts->major_res = resp[16];  in elants_i2c_query_ts_info_ekth()
577 		ts->x_max = ELAN_TS_RESOLUTION(rows, osr);  in elants_i2c_query_ts_info_ekth()
578 		ts->x_res = DIV_ROUND_CLOSEST(ts->x_max, phy_x);  in elants_i2c_query_ts_info_ekth()
579 		ts->y_max = ELAN_TS_RESOLUTION(cols, osr);  in elants_i2c_query_ts_info_ekth()
580 		ts->y_res = DIV_ROUND_CLOSEST(ts->y_max, phy_y);  in elants_i2c_query_ts_info_ekth()
581 		ts->phy_x = phy_x;  in elants_i2c_query_ts_info_ekth()
582 		ts->phy_y = phy_y;  in elants_i2c_query_ts_info_ekth()
603 static int elants_i2c_initialize(struct elants_data *ts)  in elants_i2c_initialize()  argument
605 	struct i2c_client *client = ts->client;  in elants_i2c_initialize()
634 			ts->iap_mode = ELAN_IAP_OPERATIONAL;  in elants_i2c_initialize()
652 	error2 = elants_i2c_query_hw_version(ts);  in elants_i2c_initialize()
654 		error2 = elants_i2c_query_bc_version(ts);  in elants_i2c_initialize()
659 		error = elants_i2c_query_fw_version(ts);  in elants_i2c_initialize()
661 		error = elants_i2c_query_test_version(ts);  in elants_i2c_initialize()
663 	switch (ts->chip_id) {  in elants_i2c_initialize()
666 			error = elants_i2c_query_ts_info_ekth(ts);  in elants_i2c_initialize()
670 			error = elants_i2c_query_ts_info_ektf(ts);  in elants_i2c_initialize()
677 		ts->iap_mode = ELAN_IAP_RECOVERY;  in elants_i2c_initialize()
721 static int elants_i2c_validate_remark_id(struct elants_data *ts,  in elants_i2c_validate_remark_id()  argument
724 	struct i2c_client *client = ts->client;  in elants_i2c_validate_remark_id()
752 static bool elants_i2c_should_check_remark_id(struct elants_data *ts)  in elants_i2c_should_check_remark_id()  argument
754 	struct i2c_client *client = ts->client;  in elants_i2c_should_check_remark_id()
755 	const u8 bootcode_version = ts->iap_version;  in elants_i2c_should_check_remark_id()
787 	struct elants_data *ts = i2c_get_clientdata(client);  in elants_i2c_do_update_firmware()  local
796 	bool check_remark_id = elants_i2c_should_check_remark_id(ts);  in elants_i2c_do_update_firmware()
803 			error = elants_i2c_validate_remark_id(ts, fw);  in elants_i2c_do_update_firmware()
828 			error = elants_i2c_validate_remark_id(ts, fw);  in elants_i2c_do_update_firmware()
906 static int elants_i2c_fw_update(struct elants_data *ts)  in elants_i2c_fw_update()  argument
908 	struct i2c_client *client = ts->client;  in elants_i2c_fw_update()
913 	fw_name = kasprintf(GFP_KERNEL, "elants_i2c_%04x.bin", ts->hw_version);  in elants_i2c_fw_update()
936 					ts->iap_mode == ELAN_IAP_RECOVERY);  in elants_i2c_fw_update()
939 		ts->iap_mode = ELAN_IAP_RECOVERY;  in elants_i2c_fw_update()
943 	error = elants_i2c_initialize(ts);  in elants_i2c_fw_update()
948 		ts->iap_mode = ELAN_IAP_RECOVERY;  in elants_i2c_fw_update()
952 	ts->iap_mode = ELAN_IAP_OPERATIONAL;  in elants_i2c_fw_update()
955 	ts->state = ELAN_STATE_NORMAL;  in elants_i2c_fw_update()
960 		elants_i2c_calibrate(ts);  in elants_i2c_fw_update()
970 static void elants_i2c_mt_event(struct elants_data *ts, u8 *buf,  in elants_i2c_mt_event()  argument
973 	struct input_dev *input = ts->input;  in elants_i2c_mt_event()
983 	dev_dbg(&ts->client->dev,  in elants_i2c_mt_event()
1006 			    ts->chip_id == EKTF3624) {  in elants_i2c_mt_event()
1017 			dev_dbg(&ts->client->dev, "i=%d x=%d y=%d p=%d w=%d\n",  in elants_i2c_mt_event()
1022 			touchscreen_report_pos(input, &ts->prop, x, y, true);  in elants_i2c_mt_event()
1047 static void elants_i2c_event(struct elants_data *ts, u8 *buf,  in elants_i2c_event()  argument
1053 		dev_warn(&ts->client->dev,  in elants_i2c_event()
1058 		dev_warn(&ts->client->dev,  in elants_i2c_event()
1062 		elants_i2c_mt_event(ts, buf, packet_size);  in elants_i2c_event()
1068 	struct elants_data *ts = _dev;  in elants_i2c_irq()  local
1069 	struct i2c_client *client = ts->client;  in elants_i2c_irq()
1074 	len = i2c_master_recv_dmasafe(client, ts->buf, sizeof(ts->buf));  in elants_i2c_irq()
1082 		__func__, HEADER_SIZE, ts->buf);  in elants_i2c_irq()
1084 	switch (ts->state) {  in elants_i2c_irq()
1086 		if (ts->buf[FW_HDR_TYPE] == CMD_HEADER_REK) {  in elants_i2c_irq()
1087 			memcpy(ts->cmd_resp, ts->buf, sizeof(ts->cmd_resp));  in elants_i2c_irq()
1088 			complete(&ts->cmd_done);  in elants_i2c_irq()
1089 			ts->state = ELAN_STATE_NORMAL;  in elants_i2c_irq()
1094 		if (ts->buf[FW_HDR_TYPE] != QUEUE_HEADER_NORMAL)  in elants_i2c_irq()
1097 		ts->state = ELAN_STATE_NORMAL;  in elants_i2c_irq()
1102 		switch (ts->buf[FW_HDR_TYPE]) {  in elants_i2c_irq()
1108 			if (memcmp(ts->buf, wait_packet, sizeof(wait_packet))) {  in elants_i2c_irq()
1111 					HEADER_SIZE, ts->buf);  in elants_i2c_irq()
1113 				ts->state = ELAN_WAIT_QUEUE_HEADER;  in elants_i2c_irq()
1119 			elants_i2c_event(ts, &ts->buf[HEADER_SIZE],  in elants_i2c_irq()
1120 					 ts->buf[FW_HDR_LENGTH]);  in elants_i2c_irq()
1132 			if (ts->chip_id != EKTF3624)  in elants_i2c_irq()
1138 			report_count = ts->buf[FW_HDR_COUNT];  in elants_i2c_irq()
1142 					HEADER_SIZE, ts->buf);  in elants_i2c_irq()
1146 			report_len = ts->buf[FW_HDR_LENGTH] / report_count;  in elants_i2c_irq()
1149 			    ts->chip_id == EKTF3624) {  in elants_i2c_irq()
1155 					HEADER_SIZE, ts->buf);  in elants_i2c_irq()
1160 				u8 *buf = ts->buf + HEADER_SIZE +  in elants_i2c_irq()
1162 				elants_i2c_event(ts, buf, report_len);  in elants_i2c_irq()
1168 				HEADER_SIZE, ts->buf);  in elants_i2c_irq()
1186 	struct elants_data *ts = i2c_get_clientdata(client);  in calibrate_store()  local
1189 	error = mutex_lock_interruptible(&ts->sysfs_mutex);  in calibrate_store()
1193 	error = elants_i2c_calibrate(ts);  in calibrate_store()
1195 	mutex_unlock(&ts->sysfs_mutex);  in calibrate_store()
1204 	struct elants_data *ts = i2c_get_clientdata(client);  in write_update_fw()  local
1207 	error = mutex_lock_interruptible(&ts->sysfs_mutex);  in write_update_fw()
1211 	error = elants_i2c_fw_update(ts);  in write_update_fw()
1214 	mutex_unlock(&ts->sysfs_mutex);  in write_update_fw()
1222 	struct elants_data *ts = i2c_get_clientdata(client);  in show_iap_mode()  local
1225 		       ts->iap_mode == ELAN_IAP_OPERATIONAL ?  in show_iap_mode()
1277 	struct elants_data *ts = i2c_get_clientdata(client);  in elants_version_attribute_show()  local
1280 	u8 *field = (u8 *)((char *)ts + attr->field_offset);  in elants_version_attribute_show()
1321 static int elants_i2c_power_on(struct elants_data *ts)  in elants_i2c_power_on()  argument
1329 	if (IS_ERR_OR_NULL(ts->reset_gpio))  in elants_i2c_power_on()
1332 	error = regulator_enable(ts->vcc33);  in elants_i2c_power_on()
1334 		dev_err(&ts->client->dev,  in elants_i2c_power_on()
1340 	error = regulator_enable(ts->vccio);  in elants_i2c_power_on()
1342 		dev_err(&ts->client->dev,  in elants_i2c_power_on()
1345 		regulator_disable(ts->vcc33);  in elants_i2c_power_on()
1355 	gpiod_set_value_cansleep(ts->reset_gpio, 0);  in elants_i2c_power_on()
1364 	struct elants_data *ts = _data;  in elants_i2c_power_off()  local
1366 	if (!IS_ERR_OR_NULL(ts->reset_gpio)) {  in elants_i2c_power_off()
1371 		gpiod_set_value_cansleep(ts->reset_gpio, 1);  in elants_i2c_power_off()
1372 		regulator_disable(ts->vccio);  in elants_i2c_power_off()
1373 		regulator_disable(ts->vcc33);  in elants_i2c_power_off()
1414 	struct elants_data *ts;  in elants_i2c_probe()  local
1429 	ts = devm_kzalloc(&client->dev, sizeof(struct elants_data), GFP_KERNEL);  in elants_i2c_probe()
1430 	if (!ts)  in elants_i2c_probe()
1433 	mutex_init(&ts->sysfs_mutex);  in elants_i2c_probe()
1434 	init_completion(&ts->cmd_done);  in elants_i2c_probe()
1436 	ts->client = client;  in elants_i2c_probe()
1437 	ts->chip_id = (enum elants_chip_id)(uintptr_t)device_get_match_data(&client->dev);  in elants_i2c_probe()
1438 	i2c_set_clientdata(client, ts);  in elants_i2c_probe()
1440 	ts->vcc33 = devm_regulator_get(&client->dev, "vcc33");  in elants_i2c_probe()
1441 	if (IS_ERR(ts->vcc33))  in elants_i2c_probe()
1442 		return dev_err_probe(&client->dev, PTR_ERR(ts->vcc33),  in elants_i2c_probe()
1445 	ts->vccio = devm_regulator_get(&client->dev, "vccio");  in elants_i2c_probe()
1446 	if (IS_ERR(ts->vccio))  in elants_i2c_probe()
1447 		return dev_err_probe(&client->dev, PTR_ERR(ts->vccio),  in elants_i2c_probe()
1450 	ts->reset_gpio = devm_gpiod_get(&client->dev, "reset", GPIOD_OUT_HIGH);  in elants_i2c_probe()
1451 	if (IS_ERR(ts->reset_gpio)) {  in elants_i2c_probe()
1452 		error = PTR_ERR(ts->reset_gpio);  in elants_i2c_probe()
1464 		ts->keep_power_in_suspend = true;  in elants_i2c_probe()
1467 	error = elants_i2c_power_on(ts);  in elants_i2c_probe()
1472 					 elants_i2c_power_off, ts);  in elants_i2c_probe()
1486 	error = elants_i2c_initialize(ts);  in elants_i2c_probe()
1492 	ts->input = devm_input_allocate_device(&client->dev);  in elants_i2c_probe()
1493 	if (!ts->input) {  in elants_i2c_probe()
1498 	ts->input->name = "Elan Touchscreen";  in elants_i2c_probe()
1499 	ts->input->id.bustype = BUS_I2C;  in elants_i2c_probe()
1503 	input_set_abs_params(ts->input, ABS_MT_POSITION_X, 0, ts->x_max, 0, 0);  in elants_i2c_probe()
1504 	input_set_abs_params(ts->input, ABS_MT_POSITION_Y, 0, ts->y_max, 0, 0);  in elants_i2c_probe()
1505 	input_set_abs_params(ts->input, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);  in elants_i2c_probe()
1506 	input_set_abs_params(ts->input, ABS_MT_PRESSURE, 0, 255, 0, 0);  in elants_i2c_probe()
1507 	input_set_abs_params(ts->input, ABS_MT_TOOL_TYPE,  in elants_i2c_probe()
1510 	touchscreen_parse_properties(ts->input, true, &ts->prop);  in elants_i2c_probe()
1512 	if (ts->chip_id == EKTF3624 && ts->phy_x && ts->phy_y) {  in elants_i2c_probe()
1514 		ts->x_res = DIV_ROUND_CLOSEST(ts->prop.max_x, ts->phy_x);  in elants_i2c_probe()
1515 		ts->y_res = DIV_ROUND_CLOSEST(ts->prop.max_y, ts->phy_y);  in elants_i2c_probe()
1518 	input_abs_set_res(ts->input, ABS_MT_POSITION_X, ts->x_res);  in elants_i2c_probe()
1519 	input_abs_set_res(ts->input, ABS_MT_POSITION_Y, ts->y_res);  in elants_i2c_probe()
1520 	input_abs_set_res(ts->input, ABS_MT_TOUCH_MAJOR, ts->major_res);  in elants_i2c_probe()
1522 	error = input_mt_init_slots(ts->input, MAX_CONTACT_NUM,  in elants_i2c_probe()
1530 	error = input_register_device(ts->input);  in elants_i2c_probe()
1549 					  client->name, ts);  in elants_i2c_probe()
1568 	struct elants_data *ts = i2c_get_clientdata(client);  in elants_i2c_suspend()  local
1576 	if (ts->iap_mode != ELAN_IAP_OPERATIONAL)  in elants_i2c_suspend()
1587 	} else if (ts->keep_power_in_suspend) {  in elants_i2c_suspend()
1598 		elants_i2c_power_off(ts);  in elants_i2c_suspend()
1607 	struct elants_data *ts = i2c_get_clientdata(client);  in elants_i2c_resume()  local
1616 	} else if (ts->keep_power_in_suspend) {  in elants_i2c_resume()
1627 		elants_i2c_power_on(ts);  in elants_i2c_resume()
1628 		elants_i2c_initialize(ts);  in elants_i2c_resume()
1631 	ts->state = ELAN_STATE_NORMAL;  in elants_i2c_resume()