103 static u8 sio_read_reg(struct fintek_8250 *pdata, u8 reg)  in sio_read_reg()  argument
105 	outb(reg, pdata->base_port + ADDR_PORT);  in sio_read_reg()
106 	return inb(pdata->base_port + DATA_PORT);  in sio_read_reg()
109 static void sio_write_reg(struct fintek_8250 *pdata, u8 reg, u8 data)  in sio_write_reg()  argument
111 	outb(reg, pdata->base_port + ADDR_PORT);  in sio_write_reg()
112 	outb(data, pdata->base_port + DATA_PORT);  in sio_write_reg()
115 static void sio_write_mask_reg(struct fintek_8250 *pdata, u8 reg, u8 mask,  in sio_write_mask_reg()  argument
120 	tmp = (sio_read_reg(pdata, reg) & ~mask) | (mask & data);  in sio_write_mask_reg()
121 	sio_write_reg(pdata, reg, tmp);  in sio_write_mask_reg()
144 static int fintek_8250_check_id(struct fintek_8250 *pdata)  in fintek_8250_check_id()  argument
148 	if (sio_read_reg(pdata, VENDOR_ID1) != VENDOR_ID1_VAL)  in fintek_8250_check_id()
151 	if (sio_read_reg(pdata, VENDOR_ID2) != VENDOR_ID2_VAL)  in fintek_8250_check_id()
154 	chip = sio_read_reg(pdata, CHIP_ID1);  in fintek_8250_check_id()
155 	chip |= sio_read_reg(pdata, CHIP_ID2) << 8;  in fintek_8250_check_id()
170 	pdata->pid = chip;  in fintek_8250_check_id()
174 static int fintek_8250_get_ldn_range(struct fintek_8250 *pdata, int *min,  in fintek_8250_get_ldn_range()  argument
177 	switch (pdata->pid) {  in fintek_8250_get_ldn_range()
201 	struct fintek_8250 *pdata = port->private_data;  in fintek_8250_rs485_config()  local
203 	if (!pdata)  in fintek_8250_rs485_config()
228 	if (fintek_8250_enter_key(pdata->base_port, pdata->key))  in fintek_8250_rs485_config()
231 	sio_write_reg(pdata, LDN, pdata->index);  in fintek_8250_rs485_config()
232 	sio_write_reg(pdata, RS485, config);  in fintek_8250_rs485_config()
233 	fintek_8250_exit_key(pdata->base_port);  in fintek_8250_rs485_config()
238 static void fintek_8250_set_irq_mode(struct fintek_8250 *pdata, bool is_level)  in fintek_8250_set_irq_mode()  argument
240 	sio_write_reg(pdata, LDN, pdata->index);  in fintek_8250_set_irq_mode()
242 	switch (pdata->pid) {  in fintek_8250_set_irq_mode()
245 		sio_write_mask_reg(pdata, F81866_FIFO_CTRL, F81866_IRQ_MODE1,  in fintek_8250_set_irq_mode()
249 		sio_write_mask_reg(pdata, F81866_IRQ_MODE, F81866_IRQ_SHARE,  in fintek_8250_set_irq_mode()
251 		sio_write_mask_reg(pdata, F81866_IRQ_MODE, F81866_IRQ_MODE0,  in fintek_8250_set_irq_mode()
259 		sio_write_mask_reg(pdata, FINTEK_IRQ_MODE, IRQ_SHARE,  in fintek_8250_set_irq_mode()
261 		sio_write_mask_reg(pdata, FINTEK_IRQ_MODE, IRQ_MODE_MASK,  in fintek_8250_set_irq_mode()
267 static void fintek_8250_set_max_fifo(struct fintek_8250 *pdata)  in fintek_8250_set_max_fifo()  argument
269 	switch (pdata->pid) {  in fintek_8250_set_max_fifo()
274 		sio_write_mask_reg(pdata, FIFO_CTRL,  in fintek_8250_set_max_fifo()
288 	struct fintek_8250 *pdata = port->private_data;  in fintek_8250_set_termios()  local
304 	switch (pdata->pid) {  in fintek_8250_set_termios()
317 			__func__, pdata->pid);  in fintek_8250_set_termios()
328 		if (fintek_8250_enter_key(pdata->base_port, pdata->key))  in fintek_8250_set_termios()
333 		sio_write_reg(pdata, LDN, pdata->index);  in fintek_8250_set_termios()
334 		sio_write_mask_reg(pdata, reg, F81866_UART_CLK_MASK,  in fintek_8250_set_termios()
337 		fintek_8250_exit_key(pdata->base_port);  in fintek_8250_set_termios()
352 	struct fintek_8250 *pdata = uart->port.private_data;  in fintek_8250_set_termios_handler()  local
354 	switch (pdata->pid) {  in fintek_8250_set_termios_handler()
367 static int probe_setup_port(struct fintek_8250 *pdata,  in probe_setup_port()  argument
378 			pdata->base_port = addr[i];  in probe_setup_port()
379 			pdata->key = keys[j];  in probe_setup_port()
383 			if (fintek_8250_check_id(pdata) ||  in probe_setup_port()
384 			    fintek_8250_get_ldn_range(pdata, &min, &max)) {  in probe_setup_port()
392 				sio_write_reg(pdata, LDN, k);  in probe_setup_port()
393 				aux = sio_read_reg(pdata, IO_ADDR1);  in probe_setup_port()
394 				aux |= sio_read_reg(pdata, IO_ADDR2) << 8;  in probe_setup_port()
398 				pdata->index = k;  in probe_setup_port()
405 				fintek_8250_set_irq_mode(pdata, level_mode);  in probe_setup_port()
406 				fintek_8250_set_max_fifo(pdata);  in probe_setup_port()
433 	struct fintek_8250 *pdata = uart->port.private_data;  in fintek_8250_set_rs485_handler()  local
435 	switch (pdata->pid) {  in fintek_8250_set_rs485_handler()
442 		if (!pdata->index)  in fintek_8250_set_rs485_handler()
460 	struct fintek_8250 *pdata;  in fintek_8250_probe()  local
466 	pdata = devm_kzalloc(uart->port.dev, sizeof(*pdata), GFP_KERNEL);  in fintek_8250_probe()
467 	if (!pdata)  in fintek_8250_probe()
470 	memcpy(pdata, &probe_data, sizeof(probe_data));  in fintek_8250_probe()
471 	uart->port.private_data = pdata;  in fintek_8250_probe()