154 static bool edt_ft5x06_ts_check_crc(struct edt_ft5x06_ts_data *tsdata,  in edt_ft5x06_ts_check_crc()  argument
164 		dev_err_ratelimited(&tsdata->client->dev,  in edt_ft5x06_ts_check_crc()
175 	struct edt_ft5x06_ts_data *tsdata = dev_id;  in edt_ft5x06_ts_isr()  local
176 	struct device *dev = &tsdata->client->dev;  in edt_ft5x06_ts_isr()
183 	switch (tsdata->version) {  in edt_ft5x06_ts_isr()
205 	datalen = tplen * tsdata->max_support_points + offset + crclen;  in edt_ft5x06_ts_isr()
207 	error = edt_ft5x06_ts_readwrite(tsdata->client,  in edt_ft5x06_ts_isr()
217 	if (tsdata->version == EDT_M06) {  in edt_ft5x06_ts_isr()
226 		if (!edt_ft5x06_ts_check_crc(tsdata, rdbuf, datalen))  in edt_ft5x06_ts_isr()
230 	for (i = 0; i < tsdata->max_support_points; i++) {  in edt_ft5x06_ts_isr()
240 		if (tsdata->version == EDT_M06 && type == TOUCH_EVENT_DOWN)  in edt_ft5x06_ts_isr()
248 		input_mt_slot(tsdata->input, id);  in edt_ft5x06_ts_isr()
249 		input_mt_report_slot_state(tsdata->input, MT_TOOL_FINGER, down);  in edt_ft5x06_ts_isr()
254 		touchscreen_report_pos(tsdata->input, &tsdata->prop, x, y,  in edt_ft5x06_ts_isr()
258 	input_mt_report_pointer_emulation(tsdata->input, true);  in edt_ft5x06_ts_isr()
259 	input_sync(tsdata->input);  in edt_ft5x06_ts_isr()
265 static int edt_ft5x06_register_write(struct edt_ft5x06_ts_data *tsdata,  in edt_ft5x06_register_write()  argument
270 	switch (tsdata->version) {  in edt_ft5x06_register_write()
272 		wrbuf[0] = tsdata->factory_mode ? 0xf3 : 0xfc;  in edt_ft5x06_register_write()
273 		wrbuf[1] = tsdata->factory_mode ? addr & 0x7f : addr & 0x3f;  in edt_ft5x06_register_write()
276 		return edt_ft5x06_ts_readwrite(tsdata->client, 4,  in edt_ft5x06_register_write()
284 		return edt_ft5x06_ts_readwrite(tsdata->client, 2,  in edt_ft5x06_register_write()
292 static int edt_ft5x06_register_read(struct edt_ft5x06_ts_data *tsdata,  in edt_ft5x06_register_read()  argument
298 	switch (tsdata->version) {  in edt_ft5x06_register_read()
300 		wrbuf[0] = tsdata->factory_mode ? 0xf3 : 0xfc;  in edt_ft5x06_register_read()
301 		wrbuf[1] = tsdata->factory_mode ? addr & 0x7f : addr & 0x3f;  in edt_ft5x06_register_read()
302 		wrbuf[1] |= tsdata->factory_mode ? 0x80 : 0x40;  in edt_ft5x06_register_read()
304 		error = edt_ft5x06_ts_readwrite(tsdata->client, 2, wrbuf, 2,  in edt_ft5x06_register_read()
310 			dev_err(&tsdata->client->dev,  in edt_ft5x06_register_read()
322 		error = edt_ft5x06_ts_readwrite(tsdata->client, 1,  in edt_ft5x06_register_read()
362 	struct edt_ft5x06_ts_data *tsdata = i2c_get_clientdata(client);  in edt_ft5x06_setting_show()  local
365 	u8 *field = (u8 *)tsdata + attr->field_offset;  in edt_ft5x06_setting_show()
371 	mutex_lock(&tsdata->mutex);  in edt_ft5x06_setting_show()
373 	if (tsdata->factory_mode) {  in edt_ft5x06_setting_show()
378 	switch (tsdata->version) {  in edt_ft5x06_setting_show()
395 		val = edt_ft5x06_register_read(tsdata, addr);  in edt_ft5x06_setting_show()
398 			dev_err(&tsdata->client->dev,  in edt_ft5x06_setting_show()
408 		dev_warn(&tsdata->client->dev,  in edt_ft5x06_setting_show()
416 	mutex_unlock(&tsdata->mutex);  in edt_ft5x06_setting_show()
425 	struct edt_ft5x06_ts_data *tsdata = i2c_get_clientdata(client);  in edt_ft5x06_setting_store()  local
428 	u8 *field = (u8 *)tsdata + attr->field_offset;  in edt_ft5x06_setting_store()
433 	mutex_lock(&tsdata->mutex);  in edt_ft5x06_setting_store()
435 	if (tsdata->factory_mode) {  in edt_ft5x06_setting_store()
449 	switch (tsdata->version) {  in edt_ft5x06_setting_store()
466 		error = edt_ft5x06_register_write(tsdata, addr, val);  in edt_ft5x06_setting_store()
468 			dev_err(&tsdata->client->dev,  in edt_ft5x06_setting_store()
477 	mutex_unlock(&tsdata->mutex);  in edt_ft5x06_setting_store()
507 static int edt_ft5x06_factory_mode(struct edt_ft5x06_ts_data *tsdata)  in edt_ft5x06_factory_mode()  argument
509 	struct i2c_client *client = tsdata->client;  in edt_ft5x06_factory_mode()
514 	if (tsdata->version != EDT_M06) {  in edt_ft5x06_factory_mode()
522 	if (!tsdata->raw_buffer) {  in edt_ft5x06_factory_mode()
523 		tsdata->raw_bufsize = tsdata->num_x * tsdata->num_y *  in edt_ft5x06_factory_mode()
525 		tsdata->raw_buffer = kzalloc(tsdata->raw_bufsize, GFP_KERNEL);  in edt_ft5x06_factory_mode()
526 		if (!tsdata->raw_buffer) {  in edt_ft5x06_factory_mode()
533 	error = edt_ft5x06_register_write(tsdata, WORK_REGISTER_OPMODE, 0x03);  in edt_ft5x06_factory_mode()
540 	tsdata->factory_mode = true;  in edt_ft5x06_factory_mode()
544 		ret = edt_ft5x06_register_read(tsdata, FACTORY_REGISTER_OPMODE);  in edt_ft5x06_factory_mode()
559 	kfree(tsdata->raw_buffer);  in edt_ft5x06_factory_mode()
560 	tsdata->raw_buffer = NULL;  in edt_ft5x06_factory_mode()
561 	tsdata->factory_mode = false;  in edt_ft5x06_factory_mode()
567 static int edt_ft5x06_work_mode(struct edt_ft5x06_ts_data *tsdata)  in edt_ft5x06_work_mode()  argument
569 	struct i2c_client *client = tsdata->client;  in edt_ft5x06_work_mode()
571 	struct edt_reg_addr *reg_addr = &tsdata->reg_addr;  in edt_ft5x06_work_mode()
576 	error = edt_ft5x06_register_write(tsdata, FACTORY_REGISTER_OPMODE, 0x1);  in edt_ft5x06_work_mode()
583 	tsdata->factory_mode = false;  in edt_ft5x06_work_mode()
588 		ret = edt_ft5x06_register_read(tsdata, WORK_REGISTER_OPMODE);  in edt_ft5x06_work_mode()
596 		tsdata->factory_mode = true;  in edt_ft5x06_work_mode()
600 	kfree(tsdata->raw_buffer);  in edt_ft5x06_work_mode()
601 	tsdata->raw_buffer = NULL;  in edt_ft5x06_work_mode()
604 	edt_ft5x06_register_write(tsdata, reg_addr->reg_threshold,  in edt_ft5x06_work_mode()
605 				  tsdata->threshold);  in edt_ft5x06_work_mode()
606 	edt_ft5x06_register_write(tsdata, reg_addr->reg_gain,  in edt_ft5x06_work_mode()
607 				  tsdata->gain);  in edt_ft5x06_work_mode()
608 	edt_ft5x06_register_write(tsdata, reg_addr->reg_offset,  in edt_ft5x06_work_mode()
609 				  tsdata->offset);  in edt_ft5x06_work_mode()
611 		edt_ft5x06_register_write(tsdata, reg_addr->reg_report_rate,  in edt_ft5x06_work_mode()
612 				  tsdata->report_rate);  in edt_ft5x06_work_mode()
621 	struct edt_ft5x06_ts_data *tsdata = data;  in edt_ft5x06_debugfs_mode_get()  local
623 	*mode = tsdata->factory_mode;  in edt_ft5x06_debugfs_mode_get()
630 	struct edt_ft5x06_ts_data *tsdata = data;  in edt_ft5x06_debugfs_mode_set()  local
636 	mutex_lock(&tsdata->mutex);  in edt_ft5x06_debugfs_mode_set()
638 	if (mode != tsdata->factory_mode) {  in edt_ft5x06_debugfs_mode_set()
639 		retval = mode ? edt_ft5x06_factory_mode(tsdata) :  in edt_ft5x06_debugfs_mode_set()
640 				edt_ft5x06_work_mode(tsdata);  in edt_ft5x06_debugfs_mode_set()
643 	mutex_unlock(&tsdata->mutex);  in edt_ft5x06_debugfs_mode_set()
654 	struct edt_ft5x06_ts_data *tsdata = file->private_data;  in edt_ft5x06_debugfs_raw_data_read()  local
655 	struct i2c_client *client = tsdata->client;  in edt_ft5x06_debugfs_raw_data_read()
663 	if (*off < 0 || *off >= tsdata->raw_bufsize)  in edt_ft5x06_debugfs_raw_data_read()
666 	mutex_lock(&tsdata->mutex);  in edt_ft5x06_debugfs_raw_data_read()
668 	if (!tsdata->factory_mode || !tsdata->raw_buffer) {  in edt_ft5x06_debugfs_raw_data_read()
673 	error = edt_ft5x06_register_write(tsdata, 0x08, 0x01);  in edt_ft5x06_debugfs_raw_data_read()
682 		val = edt_ft5x06_register_read(tsdata, 0x08);  in edt_ft5x06_debugfs_raw_data_read()
701 	rdbuf = tsdata->raw_buffer;  in edt_ft5x06_debugfs_raw_data_read()
702 	colbytes = tsdata->num_y * sizeof(u16);  in edt_ft5x06_debugfs_raw_data_read()
706 	for (i = 0; i < tsdata->num_x; i++) {  in edt_ft5x06_debugfs_raw_data_read()
708 		error = edt_ft5x06_ts_readwrite(tsdata->client,  in edt_ft5x06_debugfs_raw_data_read()
717 	read = min_t(size_t, count, tsdata->raw_bufsize - *off);  in edt_ft5x06_debugfs_raw_data_read()
718 	if (copy_to_user(buf, tsdata->raw_buffer + *off, read)) {  in edt_ft5x06_debugfs_raw_data_read()
725 	mutex_unlock(&tsdata->mutex);  in edt_ft5x06_debugfs_raw_data_read()
735 edt_ft5x06_ts_prepare_debugfs(struct edt_ft5x06_ts_data *tsdata,  in edt_ft5x06_ts_prepare_debugfs()  argument
738 	tsdata->debug_dir = debugfs_create_dir(debugfs_name, NULL);  in edt_ft5x06_ts_prepare_debugfs()
739 	if (!tsdata->debug_dir)  in edt_ft5x06_ts_prepare_debugfs()
742 	debugfs_create_u16("num_x", S_IRUSR, tsdata->debug_dir, &tsdata->num_x);  in edt_ft5x06_ts_prepare_debugfs()
743 	debugfs_create_u16("num_y", S_IRUSR, tsdata->debug_dir, &tsdata->num_y);  in edt_ft5x06_ts_prepare_debugfs()
746 			    tsdata->debug_dir, tsdata, &debugfs_mode_fops);  in edt_ft5x06_ts_prepare_debugfs()
748 			    tsdata->debug_dir, tsdata, &debugfs_raw_data_fops);  in edt_ft5x06_ts_prepare_debugfs()
752 edt_ft5x06_ts_teardown_debugfs(struct edt_ft5x06_ts_data *tsdata)  in edt_ft5x06_ts_teardown_debugfs()  argument
754 	debugfs_remove_recursive(tsdata->debug_dir);  in edt_ft5x06_ts_teardown_debugfs()
755 	kfree(tsdata->raw_buffer);  in edt_ft5x06_ts_teardown_debugfs()
761 edt_ft5x06_ts_prepare_debugfs(struct edt_ft5x06_ts_data *tsdata,  in edt_ft5x06_ts_prepare_debugfs()  argument
767 edt_ft5x06_ts_teardown_debugfs(struct edt_ft5x06_ts_data *tsdata)  in edt_ft5x06_ts_teardown_debugfs()  argument
774 					struct edt_ft5x06_ts_data *tsdata,  in edt_ft5x06_ts_identify()  argument
780 	char *model_name = tsdata->name;  in edt_ft5x06_ts_identify()
797 		tsdata->version = EDT_M06;  in edt_ft5x06_ts_identify()
811 		tsdata->version = EDT_M12;  in edt_ft5x06_ts_identify()
834 		tsdata->version = GENERIC_FT;  in edt_ft5x06_ts_identify()
858 			tsdata->version = EDT_M09;  in edt_ft5x06_ts_identify()
863 			tsdata->version = EDT_M09;  in edt_ft5x06_ts_identify()
882 				       struct edt_ft5x06_ts_data *tsdata)  in edt_ft5x06_ts_get_defaults()  argument
884 	struct edt_reg_addr *reg_addr = &tsdata->reg_addr;  in edt_ft5x06_ts_get_defaults()
890 		edt_ft5x06_register_write(tsdata, reg_addr->reg_threshold, val);  in edt_ft5x06_ts_get_defaults()
891 		tsdata->threshold = val;  in edt_ft5x06_ts_get_defaults()
896 		edt_ft5x06_register_write(tsdata, reg_addr->reg_gain, val);  in edt_ft5x06_ts_get_defaults()
897 		tsdata->gain = val;  in edt_ft5x06_ts_get_defaults()
902 		edt_ft5x06_register_write(tsdata, reg_addr->reg_offset, val);  in edt_ft5x06_ts_get_defaults()
903 		tsdata->offset = val;  in edt_ft5x06_ts_get_defaults()
908 edt_ft5x06_ts_get_parameters(struct edt_ft5x06_ts_data *tsdata)  in edt_ft5x06_ts_get_parameters()  argument
910 	struct edt_reg_addr *reg_addr = &tsdata->reg_addr;  in edt_ft5x06_ts_get_parameters()
912 	tsdata->threshold = edt_ft5x06_register_read(tsdata,  in edt_ft5x06_ts_get_parameters()
914 	tsdata->gain = edt_ft5x06_register_read(tsdata, reg_addr->reg_gain);  in edt_ft5x06_ts_get_parameters()
915 	tsdata->offset = edt_ft5x06_register_read(tsdata, reg_addr->reg_offset);  in edt_ft5x06_ts_get_parameters()
917 		tsdata->report_rate = edt_ft5x06_register_read(tsdata,  in edt_ft5x06_ts_get_parameters()
919 	if (tsdata->version == EDT_M06 ||  in edt_ft5x06_ts_get_parameters()
920 	    tsdata->version == EDT_M09 ||  in edt_ft5x06_ts_get_parameters()
921 	    tsdata->version == EDT_M12) {  in edt_ft5x06_ts_get_parameters()
922 		tsdata->num_x = edt_ft5x06_register_read(tsdata,  in edt_ft5x06_ts_get_parameters()
924 		tsdata->num_y = edt_ft5x06_register_read(tsdata,  in edt_ft5x06_ts_get_parameters()
927 		tsdata->num_x = -1;  in edt_ft5x06_ts_get_parameters()
928 		tsdata->num_y = -1;  in edt_ft5x06_ts_get_parameters()
933 edt_ft5x06_ts_set_regs(struct edt_ft5x06_ts_data *tsdata)  in edt_ft5x06_ts_set_regs()  argument
935 	struct edt_reg_addr *reg_addr = &tsdata->reg_addr;  in edt_ft5x06_ts_set_regs()
937 	switch (tsdata->version) {  in edt_ft5x06_ts_set_regs()
970 	struct edt_ft5x06_ts_data *tsdata;  in edt_ft5x06_ts_probe()  local
978 	tsdata = devm_kzalloc(&client->dev, sizeof(*tsdata), GFP_KERNEL);  in edt_ft5x06_ts_probe()
979 	if (!tsdata) {  in edt_ft5x06_ts_probe()
992 	tsdata->max_support_points = chip_data->max_support_points;  in edt_ft5x06_ts_probe()
994 	tsdata->reset_gpio = devm_gpiod_get_optional(&client->dev,  in edt_ft5x06_ts_probe()
996 	if (IS_ERR(tsdata->reset_gpio)) {  in edt_ft5x06_ts_probe()
997 		error = PTR_ERR(tsdata->reset_gpio);  in edt_ft5x06_ts_probe()
1003 	tsdata->wake_gpio = devm_gpiod_get_optional(&client->dev,  in edt_ft5x06_ts_probe()
1005 	if (IS_ERR(tsdata->wake_gpio)) {  in edt_ft5x06_ts_probe()
1006 		error = PTR_ERR(tsdata->wake_gpio);  in edt_ft5x06_ts_probe()
1012 	if (tsdata->wake_gpio) {  in edt_ft5x06_ts_probe()
1014 		gpiod_set_value_cansleep(tsdata->wake_gpio, 1);  in edt_ft5x06_ts_probe()
1017 	if (tsdata->reset_gpio) {  in edt_ft5x06_ts_probe()
1019 		gpiod_set_value_cansleep(tsdata->reset_gpio, 0);  in edt_ft5x06_ts_probe()
1029 	mutex_init(&tsdata->mutex);  in edt_ft5x06_ts_probe()
1030 	tsdata->client = client;  in edt_ft5x06_ts_probe()
1031 	tsdata->input = input;  in edt_ft5x06_ts_probe()
1032 	tsdata->factory_mode = false;  in edt_ft5x06_ts_probe()
1034 	error = edt_ft5x06_ts_identify(client, tsdata, fw_version);  in edt_ft5x06_ts_probe()
1040 	edt_ft5x06_ts_set_regs(tsdata);  in edt_ft5x06_ts_probe()
1041 	edt_ft5x06_ts_get_defaults(&client->dev, tsdata);  in edt_ft5x06_ts_probe()
1042 	edt_ft5x06_ts_get_parameters(tsdata);  in edt_ft5x06_ts_probe()
1046 		tsdata->name, fw_version, tsdata->num_x, tsdata->num_y);  in edt_ft5x06_ts_probe()
1048 	input->name = tsdata->name;  in edt_ft5x06_ts_probe()
1052 	if (tsdata->version == EDT_M06 ||  in edt_ft5x06_ts_probe()
1053 	    tsdata->version == EDT_M09 ||  in edt_ft5x06_ts_probe()
1054 	    tsdata->version == EDT_M12) {  in edt_ft5x06_ts_probe()
1056 				     0, tsdata->num_x * 64 - 1, 0, 0);  in edt_ft5x06_ts_probe()
1058 				     0, tsdata->num_y * 64 - 1, 0, 0);  in edt_ft5x06_ts_probe()
1067 	touchscreen_parse_properties(input, true, &tsdata->prop);  in edt_ft5x06_ts_probe()
1069 	error = input_mt_init_slots(input, tsdata->max_support_points,  in edt_ft5x06_ts_probe()
1076 	i2c_set_clientdata(client, tsdata);  in edt_ft5x06_ts_probe()
1085 					client->name, tsdata);  in edt_ft5x06_ts_probe()
1099 	edt_ft5x06_ts_prepare_debugfs(tsdata, dev_driver_string(&client->dev));  in edt_ft5x06_ts_probe()
1105 		tsdata->wake_gpio ? desc_to_gpio(tsdata->wake_gpio) : -1,  in edt_ft5x06_ts_probe()
1106 		tsdata->reset_gpio ? desc_to_gpio(tsdata->reset_gpio) : -1);  in edt_ft5x06_ts_probe()
1113 	struct edt_ft5x06_ts_data *tsdata = i2c_get_clientdata(client);  in edt_ft5x06_ts_remove()  local
1115 	edt_ft5x06_ts_teardown_debugfs(tsdata);  in edt_ft5x06_ts_remove()