xref: /freebsd/sys/dev/uart/uart_bus_pci.c (revision 27d5dc189c8e2eaf1cbe7e47078bf065854ba210)
127d5dc18SMarcel Moolenaar /*
227d5dc18SMarcel Moolenaar  * Copyright (c) 2001 M. Warner Losh.  All rights reserved.
327d5dc18SMarcel Moolenaar  *
427d5dc18SMarcel Moolenaar  * Redistribution and use in source and binary forms, with or without
527d5dc18SMarcel Moolenaar  * modification, are permitted provided that the following conditions
627d5dc18SMarcel Moolenaar  * are met:
727d5dc18SMarcel Moolenaar  * 1. Redistributions of source code must retain the above copyright
827d5dc18SMarcel Moolenaar  *    notice, this list of conditions and the following disclaimer.
927d5dc18SMarcel Moolenaar  * 2. Redistributions in binary form must reproduce the above copyright
1027d5dc18SMarcel Moolenaar  *    notice, this list of conditions and the following disclaimer in the
1127d5dc18SMarcel Moolenaar  *    documentation and/or other materials provided with the distribution.
1227d5dc18SMarcel Moolenaar  *
1327d5dc18SMarcel Moolenaar  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
1427d5dc18SMarcel Moolenaar  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
1527d5dc18SMarcel Moolenaar  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
1627d5dc18SMarcel Moolenaar  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
1727d5dc18SMarcel Moolenaar  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
1827d5dc18SMarcel Moolenaar  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
1927d5dc18SMarcel Moolenaar  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
2027d5dc18SMarcel Moolenaar  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
2127d5dc18SMarcel Moolenaar  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
2227d5dc18SMarcel Moolenaar  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
2327d5dc18SMarcel Moolenaar  */
2427d5dc18SMarcel Moolenaar 
2527d5dc18SMarcel Moolenaar #include <sys/cdefs.h>
2627d5dc18SMarcel Moolenaar __FBSDID("$FreeBSD$");
2727d5dc18SMarcel Moolenaar 
2827d5dc18SMarcel Moolenaar #include <sys/param.h>
2927d5dc18SMarcel Moolenaar #include <sys/systm.h>
3027d5dc18SMarcel Moolenaar #include <sys/bus.h>
3127d5dc18SMarcel Moolenaar #include <sys/conf.h>
3227d5dc18SMarcel Moolenaar #include <sys/kernel.h>
3327d5dc18SMarcel Moolenaar #include <sys/module.h>
3427d5dc18SMarcel Moolenaar #include <machine/bus.h>
3527d5dc18SMarcel Moolenaar #include <sys/rman.h>
3627d5dc18SMarcel Moolenaar #include <machine/resource.h>
3727d5dc18SMarcel Moolenaar 
3827d5dc18SMarcel Moolenaar #include <dev/pci/pcivar.h>
3927d5dc18SMarcel Moolenaar 
4027d5dc18SMarcel Moolenaar #include <dev/uart/uart.h>
4127d5dc18SMarcel Moolenaar #include <dev/uart/uart_bus.h>
4227d5dc18SMarcel Moolenaar 
4327d5dc18SMarcel Moolenaar static int uart_pci_probe(device_t dev);
4427d5dc18SMarcel Moolenaar 
4527d5dc18SMarcel Moolenaar static device_method_t uart_pci_methods[] = {
4627d5dc18SMarcel Moolenaar 	/* Device interface */
4727d5dc18SMarcel Moolenaar 	DEVMETHOD(device_probe,		uart_pci_probe),
4827d5dc18SMarcel Moolenaar 	DEVMETHOD(device_attach,	uart_bus_attach),
4927d5dc18SMarcel Moolenaar 	DEVMETHOD(device_detach,	uart_bus_detach),
5027d5dc18SMarcel Moolenaar 	{ 0, 0 }
5127d5dc18SMarcel Moolenaar };
5227d5dc18SMarcel Moolenaar 
5327d5dc18SMarcel Moolenaar static driver_t uart_pci_driver = {
5427d5dc18SMarcel Moolenaar 	uart_driver_name,
5527d5dc18SMarcel Moolenaar 	uart_pci_methods,
5627d5dc18SMarcel Moolenaar 	sizeof(struct uart_softc),
5727d5dc18SMarcel Moolenaar };
5827d5dc18SMarcel Moolenaar 
5927d5dc18SMarcel Moolenaar struct pci_id {
6027d5dc18SMarcel Moolenaar 	uint32_t	type;
6127d5dc18SMarcel Moolenaar 	const char	*desc;
6227d5dc18SMarcel Moolenaar 	int		rid;
6327d5dc18SMarcel Moolenaar };
6427d5dc18SMarcel Moolenaar 
6527d5dc18SMarcel Moolenaar static struct pci_id pci_ns8250_ids[] = {
6627d5dc18SMarcel Moolenaar 	{ 0x100812b9, "3COM PCI FaxModem", 0x10 },
6727d5dc18SMarcel Moolenaar 	{ 0x2000131f, "CyberSerial (1-port) 16550", 0x10 },
6827d5dc18SMarcel Moolenaar 	{ 0x01101407, "Koutech IOFLEX-2S PCI Dual Port Serial", 0x10 },
6927d5dc18SMarcel Moolenaar 	{ 0x01111407, "Koutech IOFLEX-2S PCI Dual Port Serial", 0x10 },
7027d5dc18SMarcel Moolenaar 	{ 0x048011c1, "Lucent kermit based PCI Modem", 0x14 },
7127d5dc18SMarcel Moolenaar 	{ 0x95211415, "Oxford Semiconductor PCI Dual Port Serial", 0x10 },
7227d5dc18SMarcel Moolenaar 	{ 0x7101135e, "SeaLevel Ultra 530.PCI Single Port Serial", 0x18 },
7327d5dc18SMarcel Moolenaar 	{ 0x0000151f, "SmartLink 5634PCV SurfRider", 0x10 },
7427d5dc18SMarcel Moolenaar 	{ 0x0103115d, "Xircom Cardbus modem", 0x10 },
7527d5dc18SMarcel Moolenaar 	{ 0x98459710, "Netmos Nm9845 PCI Bridge with Dual UART", 0x10 },
7627d5dc18SMarcel Moolenaar 	{ 0x01c0135c, "Quatech SSCLP-200/300", 0x18
7727d5dc18SMarcel Moolenaar 		/*
7827d5dc18SMarcel Moolenaar 		 * NB: You must mount the "SPAD" jumper to correctly detect
7927d5dc18SMarcel Moolenaar 		 * the FIFO on the UART.  Set the options on the jumpers,
8027d5dc18SMarcel Moolenaar 		 * we do not support the extra registers on the Quatech.
8127d5dc18SMarcel Moolenaar 		 */
8227d5dc18SMarcel Moolenaar 	},
8327d5dc18SMarcel Moolenaar 	{ 0x00000000, NULL, 0 }
8427d5dc18SMarcel Moolenaar };
8527d5dc18SMarcel Moolenaar 
8627d5dc18SMarcel Moolenaar static struct pci_id *
8727d5dc18SMarcel Moolenaar uart_pci_match(uint32_t type, struct pci_id *id)
8827d5dc18SMarcel Moolenaar {
8927d5dc18SMarcel Moolenaar 
9027d5dc18SMarcel Moolenaar 	while (id->type && id->type != type)
9127d5dc18SMarcel Moolenaar 		id++;
9227d5dc18SMarcel Moolenaar 	return ((id->type) ? id : NULL);
9327d5dc18SMarcel Moolenaar }
9427d5dc18SMarcel Moolenaar 
9527d5dc18SMarcel Moolenaar static int
9627d5dc18SMarcel Moolenaar uart_pci_probe(device_t dev)
9727d5dc18SMarcel Moolenaar {
9827d5dc18SMarcel Moolenaar 	struct uart_softc *sc;
9927d5dc18SMarcel Moolenaar 	struct pci_id *id;
10027d5dc18SMarcel Moolenaar 
10127d5dc18SMarcel Moolenaar 	sc = device_get_softc(dev);
10227d5dc18SMarcel Moolenaar 
10327d5dc18SMarcel Moolenaar 	id = uart_pci_match(pci_get_devid(dev), pci_ns8250_ids);
10427d5dc18SMarcel Moolenaar 	if (id != NULL) {
10527d5dc18SMarcel Moolenaar 		sc->sc_class = &uart_ns8250_class;
10627d5dc18SMarcel Moolenaar 		goto match;
10727d5dc18SMarcel Moolenaar 	}
10827d5dc18SMarcel Moolenaar 	/* Add checks for non-ns8250 IDs here. */
10927d5dc18SMarcel Moolenaar 	return (ENXIO);
11027d5dc18SMarcel Moolenaar 
11127d5dc18SMarcel Moolenaar  match:
11227d5dc18SMarcel Moolenaar 	if (id->desc)
11327d5dc18SMarcel Moolenaar 		device_set_desc(dev, id->desc);
11427d5dc18SMarcel Moolenaar 	return (uart_bus_probe(dev, 0, 0, id->rid));
11527d5dc18SMarcel Moolenaar }
11627d5dc18SMarcel Moolenaar 
11727d5dc18SMarcel Moolenaar DRIVER_MODULE(uart, pci, uart_pci_driver, uart_devclass, 0, 0);
11827d5dc18SMarcel Moolenaar DRIVER_MODULE(uart, cardbus, uart_pci_driver, uart_devclass, 0, 0);
119