sio_pci.c revision 123019 
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/sio/sio_pci.c 123019 2003-11-28 05:28:29Z imp $");
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/lock.h>
34#include <sys/malloc.h>
35#include <sys/mutex.h>
36#include <sys/module.h>
37#include <sys/tty.h>
38#include <machine/bus_pio.h>
39#include <machine/bus.h>
40#include <sys/timepps.h>
41
42#include <dev/sio/siovar.h>
43
44#include <dev/pci/pcivar.h>
45
46static	int	sio_pci_attach(device_t dev);
47static	void	sio_pci_kludge_unit(device_t dev);
48static	int	sio_pci_probe(device_t dev);
49
50static device_method_t sio_pci_methods[] = {
51	/* Device interface */
52	DEVMETHOD(device_probe,		sio_pci_probe),
53	DEVMETHOD(device_attach,	sio_pci_attach),
54	DEVMETHOD(device_detach,	siodetach),
55
56	{ 0, 0 }
57};
58
59static driver_t sio_pci_driver = {
60	sio_driver_name,
61	sio_pci_methods,
62	0,
63};
64
65struct pci_ids {
66	u_int32_t	type;
67	const char	*desc;
68	int		rid;
69};
70
71static struct pci_ids pci_ids[] = {
72	{ 0x100812b9, "3COM PCI FaxModem", 0x10 },
73	{ 0x2000131f, "CyberSerial (1-port) 16550", 0x10 },
74	{ 0x01101407, "Koutech IOFLEX-2S PCI Dual Port Serial", 0x10 },
75	{ 0x01111407, "Koutech IOFLEX-2S PCI Dual Port Serial", 0x10 },
76	{ 0x048011c1, "Lucent kermit based PCI Modem", 0x14 },
77	{ 0x95211415, "Oxford Semiconductor PCI Dual Port Serial", 0x10 },
78	{ 0x7101135e, "SeaLevel Ultra 530.PCI Single Port Serial", 0x18 },
79	{ 0x0000151f, "SmartLink 5634PCV SurfRider", 0x10 },
80	{ 0x0103115d, "Xircom Cardbus modem", 0x10 },
81	{ 0x98459710, "Netmos Nm9845 PCI Bridge with Dual UART", 0x10 },
82	{ 0x01c0135c, "Quatech SSCLP-200/300", 0x18
83		/*
84		 * NB: You must mount the "SPAD" jumper to correctly detect
85		 * the FIFO on the UART.  Set the options on the jumpers,
86		 * we do not support the extra registers on the Quatech.
87		 */
88	},
89	{ 0x00000000, NULL, 0 }
90};
91
92static int
93sio_pci_attach(dev)
94	device_t	dev;
95{
96	u_int32_t	type;
97	struct pci_ids	*id;
98	int		flags;
99
100	type = pci_get_devid(dev);
101	id = pci_ids;
102	while (id->type && id->type != type)
103		id++;
104	if (id->desc == NULL)
105		return (ENXIO);
106	sio_pci_kludge_unit(dev);
107	if (resource_int_value("sio", device_get_unit(dev), "flags", &flags)
108	     == 0)
109		device_set_flags(dev, flags);
110	return (sioattach(dev, id->rid, 0UL));
111}
112
113/*
114 * Don't cut and paste this to other drivers.  It is a horrible kludge
115 * which will fail to work and also be unnecessary in future versions.
116 */
117static void
118sio_pci_kludge_unit(dev)
119	device_t dev;
120{
121	devclass_t	dc;
122	int		err;
123	int		start;
124	int		unit;
125
126	unit = 0;
127	start = 0;
128	while (resource_int_value("sio", unit, "port", &start) == 0 &&
129	    start > 0)
130		unit++;
131	if (device_get_unit(dev) < unit) {
132		dc = device_get_devclass(dev);
133		while (devclass_get_device(dc, unit))
134			unit++;
135		device_printf(dev, "moving to sio%d\n", unit);
136		err = device_set_unit(dev, unit);	/* EVIL DO NOT COPY */
137		if (err)
138			device_printf(dev, "error moving device %d\n", err);
139	}
140}
141
142static int
143sio_pci_probe(dev)
144	device_t	dev;
145{
146	u_int32_t	type;
147	struct pci_ids	*id;
148
149	type = pci_get_devid(dev);
150	id = pci_ids;
151	while (id->type && id->type != type)
152		id++;
153	if (id->desc == NULL)
154		return (ENXIO);
155	device_set_desc(dev, id->desc);
156#ifdef PC98
157	SET_FLAG(dev, SET_IFTYPE(COM_IF_NS16550));
158#endif
159	return (sioprobe(dev, id->rid, 0UL, 0));
160}
161
162DRIVER_MODULE(sio, pci, sio_pci_driver, sio_devclass, 0, 0);
163DRIVER_MODULE(sio, cardbus, sio_pci_driver, sio_devclass, 0, 0);
164