1 // SPDX-License-Identifier: GPL-2.0
3  *  Probe for 8250/16550-type ISAPNP serial ports.
9  *  Ported to the Linux PnP Layer - (C) Adam Belay.
44 	 * Native driver (ali-ircc) is broken so at least
45 	 * it can be used with irtty-sir.
53 	/* Boca Complete Ofc Communicator 14.4 Data-FAX */
60 	/* EuroViVa CommCenter-33.6 SP PnP */
70 	/* Creative Modem Blaster Flash56 DI5601-1 */
74 	/* E-Tech */
75 	/* E-Tech CyberBULLET PC56RVP */
78 	/* Fujitsu 33600 PnP-I2 R Plug & Play */
80 	/* Fujitsu FMV-FX431 Plug & Play */
82 	/* Fujitsu 33600 PnP-I4 R Plug & Play */
84 	/* Fujitsu Fax Voice 33600 PNP-I5 R Plug & Play */
92 	/* Hayes Optima 288 V.34-V.FC + FAX + Voice Plug & Play */
203 	/* Generic 16550A-compatible COM port */
209 	/* Dial-Up Networking Serial Cable between 2 PCs */
211 	/* Dial-Up Networking Parallel Cable between 2 PCs */
347 	/* Fujitsu P-series tablet PC device */
354 	 * LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6
413  *     - dev->name or dev->bus->name must contain "modem" substring;
414  *     - device must have only one IO region (8 byte long) with base address
424 	    (dev->card && check_name(dev->card->name))))  in serial_pnp_guess_board()
425 		return -ENODEV;  in serial_pnp_guess_board()
430 	return -ENODEV;  in serial_pnp_guess_board()
436 	struct uart_8250_port uart, *port;  in serial_pnp_probe()  local
437 	int ret, line, flags = dev_id->driver_data;  in serial_pnp_probe()
445 	memset(&uart, 0, sizeof(uart));  in serial_pnp_probe()
447 		uart.port.irq = pnp_irq(dev, 0);  in serial_pnp_probe()
449 		uart.port.iobase = pnp_port_start(dev, 2);  in serial_pnp_probe()
450 		uart.port.iotype = UPIO_PORT;  in serial_pnp_probe()
452 		uart.port.iobase = pnp_port_start(dev, 0);  in serial_pnp_probe()
453 		uart.port.iotype = UPIO_PORT;  in serial_pnp_probe()
455 		uart.port.mapbase = pnp_mem_start(dev, 0);  in serial_pnp_probe()
456 		uart.port.iotype = UPIO_MEM;  in serial_pnp_probe()
457 		uart.port.flags = UPF_IOREMAP;  in serial_pnp_probe()
459 		return -ENODEV;  in serial_pnp_probe()
461 	dev_dbg(&dev->dev,  in serial_pnp_probe()
463 		 uart.port.iobase, (unsigned long long)uart.port.mapbase,  in serial_pnp_probe()
464 		 uart.port.irq, uart.port.iotype);  in serial_pnp_probe()
467 		uart.port.flags |= UPF_FIXED_PORT | UPF_FIXED_TYPE;  in serial_pnp_probe()
468 		uart.port.type = PORT_8250_CIR;  in serial_pnp_probe()
471 	uart.port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;  in serial_pnp_probe()
473 		uart.port.flags |= UPF_SHARE_IRQ;  in serial_pnp_probe()
474 	uart.port.uartclk = 1843200;  in serial_pnp_probe()
475 	device_property_read_u32(&dev->dev, "clock-frequency", &uart.port.uartclk);  in serial_pnp_probe()
476 	uart.port.dev = &dev->dev;  in serial_pnp_probe()
478 	line = serial8250_register_8250_port(&uart);  in serial_pnp_probe()
480 		return -ENODEV;  in serial_pnp_probe()
483 	if (uart_console(&port->port))  in serial_pnp_probe()
484 		dev->capabilities |= PNP_CONSOLE;  in serial_pnp_probe()
494 	dev->capabilities &= ~PNP_CONSOLE;  in serial_pnp_remove()
496 		serial8250_unregister_port(line - 1);  in serial_pnp_remove()
504 		return -ENODEV;  in serial_pnp_suspend()
505 	serial8250_suspend_port(line - 1);  in serial_pnp_suspend()
514 		return -ENODEV;  in serial_pnp_resume()
515 	serial8250_resume_port(line - 1);  in serial_pnp_resume()