124 	struct i2c_client *client;  member
160 static int elants_i2c_send(struct i2c_client *client,  in elants_i2c_send()  argument
165 	ret = i2c_master_send(client, data, size);  in elants_i2c_send()
172 	dev_err(&client->dev, "%s failed (%*ph): %d\n",  in elants_i2c_send()
178 static int elants_i2c_read(struct i2c_client *client, void *data, size_t size)  in elants_i2c_read()  argument
182 	ret = i2c_master_recv(client, data, size);  in elants_i2c_read()
189 	dev_err(&client->dev, "%s failed: %d\n", __func__, ret);  in elants_i2c_read()
194 static int elants_i2c_execute_command(struct i2c_client *client,  in elants_i2c_execute_command()  argument
217 		dev_err(&client->dev, "(%s): invalid command: %*ph\n",  in elants_i2c_execute_command()
223 		msgs[0].addr = client->addr;  in elants_i2c_execute_command()
224 		msgs[0].flags = client->flags & I2C_M_TEN;  in elants_i2c_execute_command()
228 		msgs[1].addr = client->addr;  in elants_i2c_execute_command()
229 		msgs[1].flags = (client->flags & I2C_M_TEN) | I2C_M_RD;  in elants_i2c_execute_command()
234 		ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));  in elants_i2c_execute_command()
237 				dev_dbg(&client->dev,  in elants_i2c_execute_command()
243 			dev_err(&client->dev,  in elants_i2c_execute_command()
252 				dev_dbg(&client->dev,  in elants_i2c_execute_command()
258 			dev_err(&client->dev,  in elants_i2c_execute_command()
270 	struct i2c_client *client = ts->client;  in elants_i2c_calibrate()  local
276 	disable_irq(client->irq);  in elants_i2c_calibrate()
281 	elants_i2c_send(client, w_flashkey, sizeof(w_flashkey));  in elants_i2c_calibrate()
282 	elants_i2c_send(client, rek, sizeof(rek));  in elants_i2c_calibrate()
284 	enable_irq(client->irq);  in elants_i2c_calibrate()
293 		dev_err(&client->dev,  in elants_i2c_calibrate()
300 		dev_err(&client->dev,  in elants_i2c_calibrate()
309 static int elants_i2c_sw_reset(struct i2c_client *client)  in elants_i2c_sw_reset()  argument
314 	error = elants_i2c_send(client, soft_rst_cmd,  in elants_i2c_sw_reset()
317 		dev_err(&client->dev, "software reset failed: %d\n", error);  in elants_i2c_sw_reset()
337 	struct i2c_client *client = ts->client;  in elants_i2c_query_hw_version()  local
344 		error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_hw_version()
355 	dev_err(&client->dev, "Invalid fw id: %#04x\n", ts->hw_version);  in elants_i2c_query_hw_version()
362 	struct i2c_client *client = ts->client;  in elants_i2c_query_fw_version()  local
369 		error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_fw_version()
379 		dev_dbg(&client->dev, "(read fw version) resp %*phC\n",  in elants_i2c_query_fw_version()
383 	dev_err(&client->dev, "Invalid fw ver: %#04x\n", ts->fw_version);  in elants_i2c_query_fw_version()
390 	struct i2c_client *client = ts->client;  in elants_i2c_query_test_version()  local
396 	error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_test_version()
400 		dev_err(&client->dev, "Failed to read test version\n");  in elants_i2c_query_test_version()
413 	struct i2c_client *client = ts->client;  in elants_i2c_query_bc_version()  local
419 	error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_bc_version()
434 	struct i2c_client *client = ts->client;  in elants_i2c_query_ts_info()  local
452 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
467 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
475 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
485 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
495 	dev_dbg(&client->dev, "phy_x=%d, phy_y=%d\n", phy_x, phy_y);  in elants_i2c_query_ts_info()
498 		dev_warn(&client->dev,  in elants_i2c_query_ts_info()
512 static int elants_i2c_fastboot(struct i2c_client *client)  in elants_i2c_fastboot()  argument
517 	error = elants_i2c_send(client, boot_cmd, sizeof(boot_cmd));  in elants_i2c_fastboot()
519 		dev_err(&client->dev, "boot failed: %d\n", error);  in elants_i2c_fastboot()
523 	dev_dbg(&client->dev, "boot success -- 0x%x\n", client->addr);  in elants_i2c_fastboot()
529 	struct i2c_client *client = ts->client;  in elants_i2c_initialize()  local
536 		error = elants_i2c_sw_reset(client);  in elants_i2c_initialize()
543 		error = elants_i2c_fastboot(client);  in elants_i2c_initialize()
553 		error = elants_i2c_read(client, buf, sizeof(buf));  in elants_i2c_initialize()
555 			dev_err(&client->dev,  in elants_i2c_initialize()
569 			dev_err(&client->dev,  in elants_i2c_initialize()
599 static int elants_i2c_fw_write_page(struct i2c_client *client,  in elants_i2c_fw_write_page()  argument
608 		error = elants_i2c_send(client, page, ELAN_FW_PAGESIZE);  in elants_i2c_fw_write_page()
610 			dev_err(&client->dev,  in elants_i2c_fw_write_page()
615 		error = elants_i2c_read(client, buf, 2);  in elants_i2c_fw_write_page()
617 			dev_err(&client->dev,  in elants_i2c_fw_write_page()
626 		dev_err(&client->dev,  in elants_i2c_fw_write_page()
637 	struct i2c_client *client = ts->client;  in elants_i2c_validate_remark_id()  local
645 	error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_validate_remark_id()
656 		dev_err(&client->dev,  in elants_i2c_validate_remark_id()
665 static int elants_i2c_do_update_firmware(struct i2c_client *client,  in elants_i2c_do_update_firmware()  argument
669 	struct elants_data *ts = i2c_get_clientdata(client);  in elants_i2c_do_update_firmware()
682 		dev_dbg(&client->dev, "Recovery mode procedure\n");  in elants_i2c_do_update_firmware()
690 		error = elants_i2c_send(client, enter_iap2, sizeof(enter_iap2));  in elants_i2c_do_update_firmware()
692 			dev_err(&client->dev, "failed to enter IAP mode: %d\n",  in elants_i2c_do_update_firmware()
698 		dev_dbg(&client->dev, "Normal IAP procedure\n");  in elants_i2c_do_update_firmware()
701 		error = elants_i2c_send(client, close_idle, sizeof(close_idle));  in elants_i2c_do_update_firmware()
703 			dev_err(&client->dev, "Failed close idle: %d\n", error);  in elants_i2c_do_update_firmware()
706 		elants_i2c_sw_reset(client);  in elants_i2c_do_update_firmware()
715 		error = elants_i2c_send(client, enter_iap, sizeof(enter_iap));  in elants_i2c_do_update_firmware()
717 			dev_err(&client->dev, "failed to enter IAP mode: %d\n",  in elants_i2c_do_update_firmware()
726 	error = elants_i2c_read(client, buf, 4);  in elants_i2c_do_update_firmware()
728 		dev_err(&client->dev,  in elants_i2c_do_update_firmware()
735 		dev_err(&client->dev,  in elants_i2c_do_update_firmware()
741 	dev_info(&client->dev, "successfully entered IAP mode");  in elants_i2c_do_update_firmware()
743 	send_id = client->addr;  in elants_i2c_do_update_firmware()
744 	error = elants_i2c_send(client, &send_id, 1);  in elants_i2c_do_update_firmware()
746 		dev_err(&client->dev, "sending dummy byte failed: %d\n",  in elants_i2c_do_update_firmware()
752 	error = elants_i2c_send(client, fw->data, ELAN_FW_PAGESIZE);  in elants_i2c_do_update_firmware()
754 		dev_err(&client->dev, "clearing of the last page failed: %d\n",  in elants_i2c_do_update_firmware()
759 	error = elants_i2c_read(client, buf, 2);  in elants_i2c_do_update_firmware()
761 		dev_err(&client->dev,  in elants_i2c_do_update_firmware()
768 	dev_dbg(&client->dev, "IAP Pages = %d\n", n_fw_pages);  in elants_i2c_do_update_firmware()
771 		error = elants_i2c_fw_write_page(client,  in elants_i2c_do_update_firmware()
774 			dev_err(&client->dev,  in elants_i2c_do_update_firmware()
784 	dev_info(&client->dev, "firmware update completed\n");  in elants_i2c_do_update_firmware()
790 	struct i2c_client *client = ts->client;  in elants_i2c_fw_update()  local
799 	dev_info(&client->dev, "requesting fw name = %s\n", fw_name);  in elants_i2c_fw_update()
800 	error = request_firmware(&fw, fw_name, &client->dev);  in elants_i2c_fw_update()
803 		dev_err(&client->dev, "failed to request firmware: %d\n",  in elants_i2c_fw_update()
809 		dev_err(&client->dev, "invalid firmware length: %zu\n",  in elants_i2c_fw_update()
815 	disable_irq(client->irq);  in elants_i2c_fw_update()
817 	error = elants_i2c_do_update_firmware(client, fw,  in elants_i2c_fw_update()
820 		dev_err(&client->dev, "firmware update failed: %d\n", error);  in elants_i2c_fw_update()
827 		dev_err(&client->dev,  in elants_i2c_fw_update()
838 	enable_irq(client->irq);  in elants_i2c_fw_update()
864 	dev_dbg(&ts->client->dev,  in elants_i2c_mt_event()
882 			dev_dbg(&ts->client->dev, "i=%d x=%d y=%d p=%d w=%d\n",  in elants_i2c_mt_event()
917 		dev_warn(&ts->client->dev,  in elants_i2c_event()
922 		dev_warn(&ts->client->dev,  in elants_i2c_event()
933 	struct i2c_client *client = ts->client;  in elants_i2c_irq()  local
938 	len = i2c_master_recv_dmasafe(client, ts->buf, sizeof(ts->buf));  in elants_i2c_irq()
940 		dev_err(&client->dev, "%s: failed to read data: %d\n",  in elants_i2c_irq()
945 	dev_dbg(&client->dev, "%s: packet %*ph\n",  in elants_i2c_irq()
974 				dev_err(&client->dev,  in elants_i2c_irq()
990 				dev_err(&client->dev,  in elants_i2c_irq()
998 				dev_err(&client->dev,  in elants_i2c_irq()
1012 			dev_err(&client->dev, "unknown packet %*ph\n",  in elants_i2c_irq()
1030 	struct i2c_client *client = to_i2c_client(dev);  in calibrate_store()  local
1031 	struct elants_data *ts = i2c_get_clientdata(client);  in calibrate_store()
1048 	struct i2c_client *client = to_i2c_client(dev);  in write_update_fw()  local
1049 	struct elants_data *ts = i2c_get_clientdata(client);  in write_update_fw()
1066 	struct i2c_client *client = to_i2c_client(dev);  in show_iap_mode()  local
1067 	struct elants_data *ts = i2c_get_clientdata(client);  in show_iap_mode()
1077 	struct i2c_client *client = to_i2c_client(dev);  in show_calibration_count()  local
1083 	error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in show_calibration_count()
1121 	struct i2c_client *client = to_i2c_client(dev);  in elants_version_attribute_show()  local
1122 	struct elants_data *ts = i2c_get_clientdata(client);  in elants_version_attribute_show()
1181 		dev_err(&ts->client->dev,  in elants_i2c_power_on()
1189 		dev_err(&ts->client->dev,  in elants_i2c_power_on()
1227 static int elants_i2c_probe(struct i2c_client *client,  in elants_i2c_probe()  argument
1235 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {  in elants_i2c_probe()
1236 		dev_err(&client->dev,  in elants_i2c_probe()
1241 	ts = devm_kzalloc(&client->dev, sizeof(struct elants_data), GFP_KERNEL);  in elants_i2c_probe()
1248 	ts->client = client;  in elants_i2c_probe()
1249 	i2c_set_clientdata(client, ts);  in elants_i2c_probe()
1251 	ts->vcc33 = devm_regulator_get(&client->dev, "vcc33");  in elants_i2c_probe()
1255 			dev_err(&client->dev,  in elants_i2c_probe()
1261 	ts->vccio = devm_regulator_get(&client->dev, "vccio");  in elants_i2c_probe()
1265 			dev_err(&client->dev,  in elants_i2c_probe()
1271 	ts->reset_gpio = devm_gpiod_get(&client->dev, "reset", GPIOD_OUT_LOW);  in elants_i2c_probe()
1279 			dev_err(&client->dev,  in elants_i2c_probe()
1292 	error = devm_add_action(&client->dev, elants_i2c_power_off, ts);  in elants_i2c_probe()
1294 		dev_err(&client->dev,  in elants_i2c_probe()
1301 	if (i2c_smbus_xfer(client->adapter, client->addr, 0,  in elants_i2c_probe()
1303 		dev_err(&client->dev, "nothing at this address\n");  in elants_i2c_probe()
1309 		dev_err(&client->dev, "failed to initialize: %d\n", error);  in elants_i2c_probe()
1313 	ts->input = devm_input_allocate_device(&client->dev);  in elants_i2c_probe()
1315 		dev_err(&client->dev, "Failed to allocate input device\n");  in elants_i2c_probe()
1340 		dev_err(&client->dev,  in elants_i2c_probe()
1347 		dev_err(&client->dev,  in elants_i2c_probe()
1357 	irqflags = irq_get_trigger_type(client->irq);  in elants_i2c_probe()
1361 	error = devm_request_threaded_irq(&client->dev, client->irq,  in elants_i2c_probe()
1364 					  client->name, ts);  in elants_i2c_probe()
1366 		dev_err(&client->dev, "Failed to register interrupt\n");  in elants_i2c_probe()
1374 	if (!client->dev.of_node)  in elants_i2c_probe()
1375 		device_init_wakeup(&client->dev, true);  in elants_i2c_probe()
1377 	error = devm_device_add_group(&client->dev, &elants_attribute_group);  in elants_i2c_probe()
1379 		dev_err(&client->dev, "failed to create sysfs attributes: %d\n",  in elants_i2c_probe()
1389 	struct i2c_client *client = to_i2c_client(dev);  in elants_i2c_suspend()  local
1390 	struct elants_data *ts = i2c_get_clientdata(client);  in elants_i2c_suspend()
1399 	disable_irq(client->irq);  in elants_i2c_suspend()
1406 		ts->wake_irq_enabled = (enable_irq_wake(client->irq) == 0);  in elants_i2c_suspend()
1409 			error = elants_i2c_send(client, set_sleep_cmd,  in elants_i2c_suspend()
1414 			dev_err(&client->dev,  in elants_i2c_suspend()
1426 	struct i2c_client *client = to_i2c_client(dev);  in elants_i2c_resume()  local
1427 	struct elants_data *ts = i2c_get_clientdata(client);  in elants_i2c_resume()
1434 			disable_irq_wake(client->irq);  in elants_i2c_resume()
1435 		elants_i2c_sw_reset(client);  in elants_i2c_resume()
1438 			error = elants_i2c_send(client, set_active_cmd,  in elants_i2c_resume()
1443 			dev_err(&client->dev,  in elants_i2c_resume()
1452 	enable_irq(client->irq);  in elants_i2c_resume()