uart_bus_pci.c revision 151682 
1/*-
2 * Copyright (c) 2001 M. Warner Losh.  All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25#include <sys/cdefs.h>
26__FBSDID("$FreeBSD: head/sys/dev/uart/uart_bus_pci.c 151682 2005-10-26 01:49:11Z marcel $");
27
28#include <sys/param.h>
29#include <sys/systm.h>
30#include <sys/bus.h>
31#include <sys/conf.h>
32#include <sys/kernel.h>
33#include <sys/module.h>
34#include <machine/bus.h>
35#include <sys/rman.h>
36#include <machine/resource.h>
37
38#include <dev/pci/pcivar.h>
39
40#include <dev/uart/uart.h>
41#include <dev/uart/uart_bus.h>
42
43static int uart_pci_probe(device_t dev);
44
45static device_method_t uart_pci_methods[] = {
46	/* Device interface */
47	DEVMETHOD(device_probe,		uart_pci_probe),
48	DEVMETHOD(device_attach,	uart_bus_attach),
49	DEVMETHOD(device_detach,	uart_bus_detach),
50	{ 0, 0 }
51};
52
53static driver_t uart_pci_driver = {
54	uart_driver_name,
55	uart_pci_methods,
56	sizeof(struct uart_softc),
57};
58
59struct pci_id {
60	uint32_t	type;
61	const char	*desc;
62	int		rid;
63};
64
65static struct pci_id pci_ns8250_ids[] = {
66	{ 0x048011c1, "Actiontec 56K PCI Master", 0x14 },
67	{ 0x01101407, "Lava Computers serial port", 0x10 },
68	{ 0x01111407, "Lava Computers serial port", 0x10 },
69	{ 0x9051deaf, "Middle Digital, Inc. Weasel serial port", 0x10 },
70	{ 0x950b1415, "Oxford Semiconductor OXCB950 UART", 0x10 },
71	{ 0x01c0135c, "Quatech SSCLP-200/300", 0x18
72		/*
73		 * NB: You must mount the "SPAD" jumper to correctly detect
74		 * the FIFO on the UART.  Set the options on the jumpers,
75		 * we do not support the extra registers on the Quatech.
76		 */
77	},
78	{ 0x7101135e, "SeaLevel Ultra 530.PCI Single Port Serial", 0x18 },
79	{ 0x1000131f, "SIIG Cyber Serial PCI 16C550 (10x family)", 0x18 },
80	{ 0x1001131f, "SIIG Cyber Serial PCI 16C650 (10x family)", 0x18 },
81	{ 0x1002131f, "SIIG Cyber Serial PCI 16C850 (10x family)", 0x18 },
82	{ 0x2000131f, "SIIG Cyber Serial PCI 16C550 (20x family)", 0x10 },
83	{ 0x2001131f, "SIIG Cyber Serial PCI 16C650 (20x family)", 0x10 },
84	{ 0x2002131f, "SIIG Cyber Serial PCI 16C850 (20x family)", 0x10 },
85	{ 0x0000151f, "SmartLink 5634PCV SurfRider", 0x10 },
86	{ 0x100812b9, "US Robotics (3Com) 3CP5609 PCI 16550 Modem", 0x10 },
87	{ 0x0103115d, "Xircom Cardbus modem", 0x10 },
88	{ 0x00000000, NULL, 0 }
89};
90
91static struct pci_id *
92uart_pci_match(uint32_t type, struct pci_id *id)
93{
94
95	while (id->type && id->type != type)
96		id++;
97	return ((id->type) ? id : NULL);
98}
99
100static int
101uart_pci_probe(device_t dev)
102{
103	struct uart_softc *sc;
104	struct pci_id *id;
105
106	sc = device_get_softc(dev);
107
108	id = uart_pci_match(pci_get_devid(dev), pci_ns8250_ids);
109	if (id != NULL) {
110		sc->sc_class = &uart_ns8250_class;
111		goto match;
112	}
113	/* Add checks for non-ns8250 IDs here. */
114	return (ENXIO);
115
116 match:
117	if (id->desc)
118		device_set_desc(dev, id->desc);
119	return (uart_bus_probe(dev, 0, 0, id->rid, 0));
120}
121
122DRIVER_MODULE(uart, pci, uart_pci_driver, uart_devclass, 0, 0);
123DRIVER_MODULE(uart, cardbus, uart_pci_driver, uart_devclass, 0, 0);
124