123 	struct i2c_client *client;  member
156 static int elants_i2c_send(struct i2c_client *client,  in elants_i2c_send()  argument
161 	ret = i2c_master_send(client, data, size);  in elants_i2c_send()
168 	dev_err(&client->dev, "%s failed (%*ph): %d\n",  in elants_i2c_send()
174 static int elants_i2c_read(struct i2c_client *client, void *data, size_t size)  in elants_i2c_read()  argument
178 	ret = i2c_master_recv(client, data, size);  in elants_i2c_read()
185 	dev_err(&client->dev, "%s failed: %d\n", __func__, ret);  in elants_i2c_read()
190 static int elants_i2c_execute_command(struct i2c_client *client,  in elants_i2c_execute_command()  argument
208 		dev_err(&client->dev, "%s: invalid command %*ph\n",  in elants_i2c_execute_command()
213 	msgs[0].addr = client->addr;  in elants_i2c_execute_command()
214 	msgs[0].flags = client->flags & I2C_M_TEN;  in elants_i2c_execute_command()
218 	msgs[1].addr = client->addr;  in elants_i2c_execute_command()
219 	msgs[1].flags = client->flags & I2C_M_TEN;  in elants_i2c_execute_command()
224 	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));  in elants_i2c_execute_command()
236 	struct i2c_client *client = ts->client;  in elants_i2c_calibrate()  local
242 	disable_irq(client->irq);  in elants_i2c_calibrate()
247 	elants_i2c_send(client, w_flashkey, sizeof(w_flashkey));  in elants_i2c_calibrate()
248 	elants_i2c_send(client, rek, sizeof(rek));  in elants_i2c_calibrate()
250 	enable_irq(client->irq);  in elants_i2c_calibrate()
259 		dev_err(&client->dev,  in elants_i2c_calibrate()
266 		dev_err(&client->dev,  in elants_i2c_calibrate()
275 static int elants_i2c_sw_reset(struct i2c_client *client)  in elants_i2c_sw_reset()  argument
280 	error = elants_i2c_send(client, soft_rst_cmd,  in elants_i2c_sw_reset()
283 		dev_err(&client->dev, "software reset failed: %d\n", error);  in elants_i2c_sw_reset()
303 	struct i2c_client *client = ts->client;  in elants_i2c_query_fw_id()  local
309 		error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_fw_id()
317 		dev_dbg(&client->dev, "read fw id error=%d, buf=%*phC\n",  in elants_i2c_query_fw_id()
321 	dev_err(&client->dev,  in elants_i2c_query_fw_id()
329 	struct i2c_client *client = ts->client;  in elants_i2c_query_fw_version()  local
335 		error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_fw_version()
344 		dev_dbg(&client->dev, "read fw version error=%d, buf=%*phC\n",  in elants_i2c_query_fw_version()
348 	dev_err(&client->dev,  in elants_i2c_query_fw_version()
356 	struct i2c_client *client = ts->client;  in elants_i2c_query_test_version()  local
363 		error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_test_version()
373 		dev_dbg(&client->dev,  in elants_i2c_query_test_version()
378 	dev_err(&client->dev, "Failed to read test version\n");  in elants_i2c_query_test_version()
385 	struct i2c_client *client = ts->client;  in elants_i2c_query_bc_version()  local
391 	error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_bc_version()
394 		dev_err(&client->dev,  in elants_i2c_query_bc_version()
409 	struct i2c_client *client = ts->client;  in elants_i2c_query_ts_info()  local
427 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
432 		dev_err(&client->dev, "get resolution command failed: %d\n",  in elants_i2c_query_ts_info()
441 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
445 		dev_err(&client->dev, "get osr command failed: %d\n",  in elants_i2c_query_ts_info()
452 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
457 		dev_err(&client->dev, "get physical scan command failed: %d\n",  in elants_i2c_query_ts_info()
464 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
469 		dev_err(&client->dev, "get physical drive command failed: %d\n",  in elants_i2c_query_ts_info()
476 	dev_dbg(&client->dev, "phy_x=%d, phy_y=%d\n", phy_x, phy_y);  in elants_i2c_query_ts_info()
479 		dev_warn(&client->dev,  in elants_i2c_query_ts_info()
493 static int elants_i2c_fastboot(struct i2c_client *client)  in elants_i2c_fastboot()  argument
498 	error = elants_i2c_send(client, boot_cmd, sizeof(boot_cmd));  in elants_i2c_fastboot()
500 		dev_err(&client->dev, "boot failed: %d\n", error);  in elants_i2c_fastboot()
504 	dev_dbg(&client->dev, "boot success -- 0x%x\n", client->addr);  in elants_i2c_fastboot()
510 	struct i2c_client *client = ts->client;  in elants_i2c_initialize()  local
517 		error = elants_i2c_sw_reset(client);  in elants_i2c_initialize()
524 		error = elants_i2c_fastboot(client);  in elants_i2c_initialize()
534 		error = elants_i2c_read(client, buf, sizeof(buf));  in elants_i2c_initialize()
536 			dev_err(&client->dev,  in elants_i2c_initialize()
550 			dev_err(&client->dev,  in elants_i2c_initialize()
576 static int elants_i2c_fw_write_page(struct i2c_client *client,  in elants_i2c_fw_write_page()  argument
585 		error = elants_i2c_send(client, page, ELAN_FW_PAGESIZE);  in elants_i2c_fw_write_page()
587 			dev_err(&client->dev,  in elants_i2c_fw_write_page()
592 		error = elants_i2c_read(client, buf, 2);  in elants_i2c_fw_write_page()
594 			dev_err(&client->dev,  in elants_i2c_fw_write_page()
603 		dev_err(&client->dev,  in elants_i2c_fw_write_page()
611 static int elants_i2c_do_update_firmware(struct i2c_client *client,  in elants_i2c_do_update_firmware()  argument
626 		dev_dbg(&client->dev, "Recovery mode procedure\n");  in elants_i2c_do_update_firmware()
627 		error = elants_i2c_send(client, enter_iap2, sizeof(enter_iap2));  in elants_i2c_do_update_firmware()
630 		dev_dbg(&client->dev, "Normal IAP procedure\n");  in elants_i2c_do_update_firmware()
632 		error = elants_i2c_send(client, close_idle, sizeof(close_idle));  in elants_i2c_do_update_firmware()
634 			dev_err(&client->dev, "Failed close idle: %d\n", error);  in elants_i2c_do_update_firmware()
636 		elants_i2c_sw_reset(client);  in elants_i2c_do_update_firmware()
638 		error = elants_i2c_send(client, enter_iap, sizeof(enter_iap));  in elants_i2c_do_update_firmware()
642 		dev_err(&client->dev, "failed to enter IAP mode: %d\n", error);  in elants_i2c_do_update_firmware()
649 	error = elants_i2c_read(client, buf, 4);  in elants_i2c_do_update_firmware()
651 		dev_err(&client->dev,  in elants_i2c_do_update_firmware()
658 		dev_err(&client->dev,  in elants_i2c_do_update_firmware()
664 	dev_info(&client->dev, "successfully entered IAP mode");  in elants_i2c_do_update_firmware()
666 	send_id = client->addr;  in elants_i2c_do_update_firmware()
667 	error = elants_i2c_send(client, &send_id, 1);  in elants_i2c_do_update_firmware()
669 		dev_err(&client->dev, "sending dummy byte failed: %d\n",  in elants_i2c_do_update_firmware()
675 	error = elants_i2c_send(client, fw->data, ELAN_FW_PAGESIZE);  in elants_i2c_do_update_firmware()
677 		dev_err(&client->dev, "clearing of the last page failed: %d\n",  in elants_i2c_do_update_firmware()
682 	error = elants_i2c_read(client, buf, 2);  in elants_i2c_do_update_firmware()
684 		dev_err(&client->dev,  in elants_i2c_do_update_firmware()
691 	dev_dbg(&client->dev, "IAP Pages = %d\n", n_fw_pages);  in elants_i2c_do_update_firmware()
694 		error = elants_i2c_fw_write_page(client,  in elants_i2c_do_update_firmware()
697 			dev_err(&client->dev,  in elants_i2c_do_update_firmware()
707 	dev_info(&client->dev, "firmware update completed\n");  in elants_i2c_do_update_firmware()
713 	struct i2c_client *client = ts->client;  in elants_i2c_fw_update()  local
722 	dev_info(&client->dev, "requesting fw name = %s\n", fw_name);  in elants_i2c_fw_update()
723 	error = request_firmware(&fw, fw_name, &client->dev);  in elants_i2c_fw_update()
726 		dev_err(&client->dev, "failed to request firmware: %d\n",  in elants_i2c_fw_update()
732 		dev_err(&client->dev, "invalid firmware length: %zu\n",  in elants_i2c_fw_update()
738 	disable_irq(client->irq);  in elants_i2c_fw_update()
740 	error = elants_i2c_do_update_firmware(client, fw,  in elants_i2c_fw_update()
743 		dev_err(&client->dev, "firmware update failed: %d\n", error);  in elants_i2c_fw_update()
750 		dev_err(&client->dev,  in elants_i2c_fw_update()
761 	enable_irq(client->irq);  in elants_i2c_fw_update()
786 	dev_dbg(&ts->client->dev,  in elants_i2c_mt_event()
800 			dev_dbg(&ts->client->dev, "i=%d x=%d y=%d p=%d w=%d\n",  in elants_i2c_mt_event()
836 		dev_warn(&ts->client->dev,  in elants_i2c_event()
841 		dev_warn(&ts->client->dev,  in elants_i2c_event()
852 	struct i2c_client *client = ts->client;  in elants_i2c_irq()  local
857 	len = i2c_master_recv(client, ts->buf, sizeof(ts->buf));  in elants_i2c_irq()
859 		dev_err(&client->dev, "%s: failed to read data: %d\n",  in elants_i2c_irq()
864 	dev_dbg(&client->dev, "%s: packet %*ph\n",  in elants_i2c_irq()
893 				dev_err(&client->dev,  in elants_i2c_irq()
909 				dev_err(&client->dev,  in elants_i2c_irq()
917 				dev_err(&client->dev,  in elants_i2c_irq()
931 			dev_err(&client->dev, "unknown packet %*ph\n",  in elants_i2c_irq()
949 	struct i2c_client *client = to_i2c_client(dev);  in calibrate_store()  local
950 	struct elants_data *ts = i2c_get_clientdata(client);  in calibrate_store()
967 	struct i2c_client *client = to_i2c_client(dev);  in write_update_fw()  local
968 	struct elants_data *ts = i2c_get_clientdata(client);  in write_update_fw()
985 	struct i2c_client *client = to_i2c_client(dev);  in show_iap_mode()  local
986 	struct elants_data *ts = i2c_get_clientdata(client);  in show_iap_mode()
1020 	struct i2c_client *client = to_i2c_client(dev);  in elants_version_attribute_show()  local
1021 	struct elants_data *ts = i2c_get_clientdata(client);  in elants_version_attribute_show()
1068 	sysfs_remove_group(&ts->client->dev.kobj, &elants_attribute_group);  in elants_i2c_remove_sysfs_group()
1086 		dev_err(&ts->client->dev,  in elants_i2c_power_on()
1094 		dev_err(&ts->client->dev,  in elants_i2c_power_on()
1132 static int elants_i2c_probe(struct i2c_client *client,  in elants_i2c_probe()  argument
1140 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {  in elants_i2c_probe()
1141 		dev_err(&client->dev,  in elants_i2c_probe()
1146 	ts = devm_kzalloc(&client->dev, sizeof(struct elants_data), GFP_KERNEL);  in elants_i2c_probe()
1153 	ts->client = client;  in elants_i2c_probe()
1154 	i2c_set_clientdata(client, ts);  in elants_i2c_probe()
1156 	ts->vcc33 = devm_regulator_get(&client->dev, "vcc33");  in elants_i2c_probe()
1160 			dev_err(&client->dev,  in elants_i2c_probe()
1166 	ts->vccio = devm_regulator_get(&client->dev, "vccio");  in elants_i2c_probe()
1170 			dev_err(&client->dev,  in elants_i2c_probe()
1176 	ts->reset_gpio = devm_gpiod_get(&client->dev, "reset", GPIOD_OUT_LOW);  in elants_i2c_probe()
1184 			dev_err(&client->dev,  in elants_i2c_probe()
1197 	error = devm_add_action(&client->dev, elants_i2c_power_off, ts);  in elants_i2c_probe()
1199 		dev_err(&client->dev,  in elants_i2c_probe()
1206 	if (i2c_smbus_xfer(client->adapter, client->addr, 0,  in elants_i2c_probe()
1208 		dev_err(&client->dev, "nothing at this address\n");  in elants_i2c_probe()
1214 		dev_err(&client->dev, "failed to initialize: %d\n", error);  in elants_i2c_probe()
1218 	ts->input = devm_input_allocate_device(&client->dev);  in elants_i2c_probe()
1220 		dev_err(&client->dev, "Failed to allocate input device\n");  in elants_i2c_probe()
1242 		dev_err(&client->dev,  in elants_i2c_probe()
1258 		dev_err(&client->dev,  in elants_i2c_probe()
1267 	irqflags = client->dev.of_node ? 0 : IRQF_TRIGGER_FALLING;  in elants_i2c_probe()
1269 	error = devm_request_threaded_irq(&client->dev, client->irq,  in elants_i2c_probe()
1272 					  client->name, ts);  in elants_i2c_probe()
1274 		dev_err(&client->dev, "Failed to register interrupt\n");  in elants_i2c_probe()
1282 	if (!client->dev.of_node)  in elants_i2c_probe()
1283 		device_init_wakeup(&client->dev, true);  in elants_i2c_probe()
1285 	error = sysfs_create_group(&client->dev.kobj, &elants_attribute_group);  in elants_i2c_probe()
1287 		dev_err(&client->dev, "failed to create sysfs attributes: %d\n",  in elants_i2c_probe()
1292 	error = devm_add_action(&client->dev,  in elants_i2c_probe()
1296 		dev_err(&client->dev,  in elants_i2c_probe()
1307 	struct i2c_client *client = to_i2c_client(dev);  in elants_i2c_suspend()  local
1308 	struct elants_data *ts = i2c_get_clientdata(client);  in elants_i2c_suspend()
1317 	disable_irq(client->irq);  in elants_i2c_suspend()
1324 		ts->wake_irq_enabled = (enable_irq_wake(client->irq) == 0);  in elants_i2c_suspend()
1327 			error = elants_i2c_send(client, set_sleep_cmd,  in elants_i2c_suspend()
1332 			dev_err(&client->dev,  in elants_i2c_suspend()
1344 	struct i2c_client *client = to_i2c_client(dev);  in elants_i2c_resume()  local
1345 	struct elants_data *ts = i2c_get_clientdata(client);  in elants_i2c_resume()
1352 			disable_irq_wake(client->irq);  in elants_i2c_resume()
1353 		elants_i2c_sw_reset(client);  in elants_i2c_resume()
1356 			error = elants_i2c_send(client, set_active_cmd,  in elants_i2c_resume()
1361 			dev_err(&client->dev,  in elants_i2c_resume()
1370 	enable_irq(client->irq);  in elants_i2c_resume()