sio_pci.c revision 92822 
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 * $FreeBSD: head/sys/dev/sio/sio_pci.c 92822 2002-03-20 19:38:26Z jhb $
25 */
26
27#include <sys/param.h>
28#include <sys/systm.h>
29#include <sys/bus.h>
30#include <sys/conf.h>
31#include <sys/kernel.h>
32#include <sys/lock.h>
33#include <sys/malloc.h>
34#include <sys/mutex.h>
35#include <sys/module.h>
36#include <sys/tty.h>
37#include <machine/bus_pio.h>
38#include <machine/bus.h>
39#include <sys/timepps.h>
40
41#include <dev/sio/siovar.h>
42
43#include <pci/pcivar.h>
44
45static	int	sio_pci_attach(device_t dev);
46static	void	sio_pci_kludge_unit(device_t dev);
47static	int	sio_pci_probe(device_t dev);
48
49static device_method_t sio_pci_methods[] = {
50	/* Device interface */
51	DEVMETHOD(device_probe,		sio_pci_probe),
52	DEVMETHOD(device_attach,	sio_pci_attach),
53
54	{ 0, 0 }
55};
56
57static driver_t sio_pci_driver = {
58	sio_driver_name,
59	sio_pci_methods,
60	0,
61};
62
63struct pci_ids {
64	u_int32_t	type;
65	const char	*desc;
66	int		rid;
67};
68
69static struct pci_ids pci_ids[] = {
70	{ 0x100812b9, "3COM PCI FaxModem", 0x10 },
71	{ 0x2000131f, "CyberSerial (1-port) 16550", 0x10 },
72	{ 0x01101407, "Koutech IOFLEX-2S PCI Dual Port Serial", 0x10 },
73	{ 0x01111407, "Koutech IOFLEX-2S PCI Dual Port Serial", 0x10 },
74	{ 0x048011c1, "Lucent kermit based PCI Modem", 0x14 },
75	{ 0x95211415, "Oxford Semiconductor PCI Dual Port Serial", 0x10 },
76	{ 0x7101135e, "SeaLevel Ultra 530.PCI Single Port Serial", 0x18 },
77	{ 0x0000151f, "SmartLink 5634PCV SurfRider", 0x10 },
78	{ 0x0103115d, "Xircom Cardbus modem", 0x10 },
79	{ 0x00000000, NULL, 0 }
80};
81
82static int
83sio_pci_attach(dev)
84	device_t	dev;
85{
86	u_int32_t	type;
87	struct pci_ids	*id;
88
89	type = pci_get_devid(dev);
90	id = pci_ids;
91	while (id->type && id->type != type)
92		id++;
93	if (id->desc == NULL)
94		return (ENXIO);
95	sio_pci_kludge_unit(dev);
96	return (sioattach(dev, id->rid, 0UL));
97}
98
99/*
100 * Don't cut and paste this to other drivers.  It is a horrible kludge
101 * which will fail to work and also be unnecessary in future versions.
102 */
103static void
104sio_pci_kludge_unit(dev)
105	device_t dev;
106{
107	devclass_t	dc;
108	int		err;
109	int		start;
110	int		unit;
111
112	unit = 0;
113	start = 0;
114	while (resource_int_value("sio", unit, "port", &start) == 0 &&
115	    start > 0)
116		unit++;
117	if (device_get_unit(dev) < unit) {
118		dc = device_get_devclass(dev);
119		while (devclass_get_device(dc, unit))
120			unit++;
121		device_printf(dev, "moving to sio%d\n", unit);
122		err = device_set_unit(dev, unit);	/* EVIL DO NOT COPY */
123		if (err)
124			device_printf(dev, "error moving device %d\n", err);
125	}
126}
127
128static int
129sio_pci_probe(dev)
130	device_t	dev;
131{
132	u_int32_t	type;
133	struct pci_ids	*id;
134
135	type = pci_get_devid(dev);
136	id = pci_ids;
137	while (id->type && id->type != type)
138		id++;
139	if (id->desc == NULL)
140		return (ENXIO);
141	device_set_desc(dev, id->desc);
142#ifdef PC98
143	SET_FLAG(dev, SET_IFTYPE(COM_IF_NS16550));
144#endif
145	return (sioprobe(dev, id->rid, 0UL, 0));
146}
147
148DRIVER_MODULE(sio, pci, sio_pci_driver, sio_devclass, 0, 0);
149DRIVER_MODULE(sio, cardbus, sio_pci_driver, sio_devclass, 0, 0);
150