224 static int elants_i2c_calibrate(struct elants_data *ts)  in elants_i2c_calibrate()  argument
226 	struct i2c_client *client = ts->client;  in elants_i2c_calibrate()
234 	ts->state = ELAN_WAIT_RECALIBRATION;  in elants_i2c_calibrate()
235 	reinit_completion(&ts->cmd_done);  in elants_i2c_calibrate()
242 	ret = wait_for_completion_interruptible_timeout(&ts->cmd_done,  in elants_i2c_calibrate()
245 	ts->state = ELAN_STATE_NORMAL;  in elants_i2c_calibrate()
255 	if (memcmp(rek_resp, ts->cmd_resp, sizeof(rek_resp))) {  in elants_i2c_calibrate()
258 			(int)sizeof(ts->cmd_resp), ts->cmd_resp);  in elants_i2c_calibrate()
291 static int elants_i2c_query_fw_id(struct elants_data *ts)  in elants_i2c_query_fw_id()  argument
293 	struct i2c_client *client = ts->client;  in elants_i2c_query_fw_id()
302 			ts->hw_version = elants_i2c_parse_version(resp);  in elants_i2c_query_fw_id()
303 			if (ts->hw_version != 0xffff)  in elants_i2c_query_fw_id()
317 static int elants_i2c_query_fw_version(struct elants_data *ts)  in elants_i2c_query_fw_version()  argument
319 	struct i2c_client *client = ts->client;  in elants_i2c_query_fw_version()
328 			ts->fw_version = elants_i2c_parse_version(resp);  in elants_i2c_query_fw_version()
329 			if (ts->fw_version != 0x0000 &&  in elants_i2c_query_fw_version()
330 			    ts->fw_version != 0xffff)  in elants_i2c_query_fw_version()
344 static int elants_i2c_query_test_version(struct elants_data *ts)  in elants_i2c_query_test_version()  argument
346 	struct i2c_client *client = ts->client;  in elants_i2c_query_test_version()
357 			ts->test_version = version >> 8;  in elants_i2c_query_test_version()
358 			ts->solution_version = version & 0xff;  in elants_i2c_query_test_version()
373 static int elants_i2c_query_bc_version(struct elants_data *ts)  in elants_i2c_query_bc_version()  argument
375 	struct i2c_client *client = ts->client;  in elants_i2c_query_bc_version()
391 	ts->bc_version = version >> 8;  in elants_i2c_query_bc_version()
392 	ts->iap_version = version & 0xff;  in elants_i2c_query_bc_version()
397 static int elants_i2c_query_ts_info(struct elants_data *ts)  in elants_i2c_query_ts_info()  argument
399 	struct i2c_client *client = ts->client;  in elants_i2c_query_ts_info()
474 		ts->x_max = ELAN_TS_RESOLUTION(rows, osr);  in elants_i2c_query_ts_info()
475 		ts->x_res = DIV_ROUND_CLOSEST(ts->x_max, phy_x);  in elants_i2c_query_ts_info()
476 		ts->y_max = ELAN_TS_RESOLUTION(cols, osr);  in elants_i2c_query_ts_info()
477 		ts->y_res = DIV_ROUND_CLOSEST(ts->y_max, phy_y);  in elants_i2c_query_ts_info()
498 static int elants_i2c_initialize(struct elants_data *ts)  in elants_i2c_initialize()  argument
500 	struct i2c_client *client = ts->client;  in elants_i2c_initialize()
529 			ts->iap_mode = ELAN_IAP_OPERATIONAL;  in elants_i2c_initialize()
547 		error = elants_i2c_query_fw_id(ts);  in elants_i2c_initialize()
549 		error = elants_i2c_query_fw_version(ts);  in elants_i2c_initialize()
552 		ts->iap_mode = ELAN_IAP_RECOVERY;  in elants_i2c_initialize()
554 		elants_i2c_query_test_version(ts);  in elants_i2c_initialize()
555 		elants_i2c_query_bc_version(ts);  in elants_i2c_initialize()
556 		elants_i2c_query_ts_info(ts);  in elants_i2c_initialize()
695 static int elants_i2c_fw_update(struct elants_data *ts)  in elants_i2c_fw_update()  argument
697 	struct i2c_client *client = ts->client;  in elants_i2c_fw_update()
702 	fw_name = kasprintf(GFP_KERNEL, "elants_i2c_%04x.bin", ts->hw_version);  in elants_i2c_fw_update()
725 					ts->iap_mode == ELAN_IAP_RECOVERY);  in elants_i2c_fw_update()
728 		ts->iap_mode = ELAN_IAP_RECOVERY;  in elants_i2c_fw_update()
732 	error = elants_i2c_initialize(ts);  in elants_i2c_fw_update()
737 		ts->iap_mode = ELAN_IAP_RECOVERY;  in elants_i2c_fw_update()
741 	ts->iap_mode = ELAN_IAP_OPERATIONAL;  in elants_i2c_fw_update()
744 	ts->state = ELAN_STATE_NORMAL;  in elants_i2c_fw_update()
749 		elants_i2c_calibrate(ts);  in elants_i2c_fw_update()
759 static void elants_i2c_mt_event(struct elants_data *ts, u8 *buf)  in elants_i2c_mt_event()  argument
761 	struct input_dev *input = ts->input;  in elants_i2c_mt_event()
770 	dev_dbg(&ts->client->dev,  in elants_i2c_mt_event()
784 			dev_dbg(&ts->client->dev, "i=%d x=%d y=%d p=%d w=%d\n",  in elants_i2c_mt_event()
815 static void elants_i2c_event(struct elants_data *ts, u8 *buf)  in elants_i2c_event()  argument
820 		dev_warn(&ts->client->dev,  in elants_i2c_event()
825 		dev_warn(&ts->client->dev,  in elants_i2c_event()
829 		elants_i2c_mt_event(ts, buf);  in elants_i2c_event()
835 	struct elants_data *ts = _dev;  in elants_i2c_irq()  local
836 	struct i2c_client *client = ts->client;  in elants_i2c_irq()
841 	len = i2c_master_recv(client, ts->buf, sizeof(ts->buf));  in elants_i2c_irq()
849 		__func__, HEADER_SIZE, ts->buf);  in elants_i2c_irq()
851 	switch (ts->state) {  in elants_i2c_irq()
853 		if (ts->buf[FW_HDR_TYPE] == CMD_HEADER_REK) {  in elants_i2c_irq()
854 			memcpy(ts->cmd_resp, ts->buf, sizeof(ts->cmd_resp));  in elants_i2c_irq()
855 			complete(&ts->cmd_done);  in elants_i2c_irq()
856 			ts->state = ELAN_STATE_NORMAL;  in elants_i2c_irq()
861 		if (ts->buf[FW_HDR_TYPE] != QUEUE_HEADER_NORMAL)  in elants_i2c_irq()
864 		ts->state = ELAN_STATE_NORMAL;  in elants_i2c_irq()
869 		switch (ts->buf[FW_HDR_TYPE]) {  in elants_i2c_irq()
876 			if (memcmp(ts->buf, wait_packet, sizeof(wait_packet))) {  in elants_i2c_irq()
879 					HEADER_SIZE, ts->buf);  in elants_i2c_irq()
881 				ts->state = ELAN_WAIT_QUEUE_HEADER;  in elants_i2c_irq()
887 			elants_i2c_event(ts, &ts->buf[HEADER_SIZE]);  in elants_i2c_irq()
891 			report_count = ts->buf[FW_HDR_COUNT];  in elants_i2c_irq()
895 					HEADER_SIZE, ts->buf);  in elants_i2c_irq()
899 			report_len = ts->buf[FW_HDR_LENGTH] / report_count;  in elants_i2c_irq()
903 					HEADER_SIZE, ts->buf);  in elants_i2c_irq()
908 				u8 *buf = ts->buf + HEADER_SIZE +  in elants_i2c_irq()
910 				elants_i2c_event(ts, buf);  in elants_i2c_irq()
916 				HEADER_SIZE, ts->buf);  in elants_i2c_irq()
934 	struct elants_data *ts = i2c_get_clientdata(client);  in calibrate_store()  local
937 	error = mutex_lock_interruptible(&ts->sysfs_mutex);  in calibrate_store()
941 	error = elants_i2c_calibrate(ts);  in calibrate_store()
943 	mutex_unlock(&ts->sysfs_mutex);  in calibrate_store()
952 	struct elants_data *ts = i2c_get_clientdata(client);  in write_update_fw()  local
955 	error = mutex_lock_interruptible(&ts->sysfs_mutex);  in write_update_fw()
959 	error = elants_i2c_fw_update(ts);  in write_update_fw()
962 	mutex_unlock(&ts->sysfs_mutex);  in write_update_fw()
970 	struct elants_data *ts = i2c_get_clientdata(client);  in show_iap_mode()  local
973 		       ts->iap_mode == ELAN_IAP_OPERATIONAL ?  in show_iap_mode()
1005 	struct elants_data *ts = i2c_get_clientdata(client);  in elants_version_attribute_show()  local
1008 	u8 *field = (u8 *)((char *)ts + attr->field_offset);  in elants_version_attribute_show()
1050 	struct elants_data *ts = _data;  in elants_i2c_remove_sysfs_group()  local
1052 	sysfs_remove_group(&ts->client->dev.kobj, &elants_attribute_group);  in elants_i2c_remove_sysfs_group()
1059 	struct elants_data *ts;  in elants_i2c_probe()  local
1076 	ts = devm_kzalloc(&client->dev, sizeof(struct elants_data), GFP_KERNEL);  in elants_i2c_probe()
1077 	if (!ts)  in elants_i2c_probe()
1080 	mutex_init(&ts->sysfs_mutex);  in elants_i2c_probe()
1081 	init_completion(&ts->cmd_done);  in elants_i2c_probe()
1083 	ts->client = client;  in elants_i2c_probe()
1084 	i2c_set_clientdata(client, ts);  in elants_i2c_probe()
1086 	error = elants_i2c_initialize(ts);  in elants_i2c_probe()
1092 	ts->input = devm_input_allocate_device(&client->dev);  in elants_i2c_probe()
1093 	if (!ts->input) {  in elants_i2c_probe()
1098 	ts->input->name = "Elan Touchscreen";  in elants_i2c_probe()
1099 	ts->input->id.bustype = BUS_I2C;  in elants_i2c_probe()
1101 	__set_bit(BTN_TOUCH, ts->input->keybit);  in elants_i2c_probe()
1102 	__set_bit(EV_ABS, ts->input->evbit);  in elants_i2c_probe()
1103 	__set_bit(EV_KEY, ts->input->evbit);  in elants_i2c_probe()
1106 	input_set_abs_params(ts->input, ABS_X, 0, ts->x_max, 0, 0);  in elants_i2c_probe()
1107 	input_set_abs_params(ts->input, ABS_Y, 0, ts->y_max, 0, 0);  in elants_i2c_probe()
1108 	input_set_abs_params(ts->input, ABS_PRESSURE, 0, 255, 0, 0);  in elants_i2c_probe()
1109 	input_abs_set_res(ts->input, ABS_X, ts->x_res);  in elants_i2c_probe()
1110 	input_abs_set_res(ts->input, ABS_Y, ts->y_res);  in elants_i2c_probe()
1113 	error = input_mt_init_slots(ts->input, MAX_CONTACT_NUM,  in elants_i2c_probe()
1121 	input_set_abs_params(ts->input, ABS_MT_POSITION_X, 0, ts->x_max, 0, 0);  in elants_i2c_probe()
1122 	input_set_abs_params(ts->input, ABS_MT_POSITION_Y, 0, ts->y_max, 0, 0);  in elants_i2c_probe()
1123 	input_set_abs_params(ts->input, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);  in elants_i2c_probe()
1124 	input_set_abs_params(ts->input, ABS_MT_PRESSURE, 0, 255, 0, 0);  in elants_i2c_probe()
1125 	input_abs_set_res(ts->input, ABS_MT_POSITION_X, ts->x_res);  in elants_i2c_probe()
1126 	input_abs_set_res(ts->input, ABS_MT_POSITION_Y, ts->y_res);  in elants_i2c_probe()
1128 	input_set_drvdata(ts->input, ts);  in elants_i2c_probe()
1130 	error = input_register_device(ts->input);  in elants_i2c_probe()
1146 					  client->name, ts);  in elants_i2c_probe()
1167 				elants_i2c_remove_sysfs_group, ts);  in elants_i2c_probe()
1169 		elants_i2c_remove_sysfs_group(ts);  in elants_i2c_probe()
1182 	struct elants_data *ts = i2c_get_clientdata(client);  in elants_i2c_suspend()  local
1188 	if (ts->iap_mode != ELAN_IAP_OPERATIONAL)  in elants_i2c_suspend()
1203 		ts->wake_irq_enabled = (enable_irq_wake(client->irq) == 0);  in elants_i2c_suspend()
1211 	struct elants_data *ts = i2c_get_clientdata(client);  in elants_i2c_resume()  local
1216 	if (device_may_wakeup(dev) && ts->wake_irq_enabled)  in elants_i2c_resume()
1228 	ts->state = ELAN_STATE_NORMAL;  in elants_i2c_resume()