sio_pci.c revision 119283 
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 119283 2003-08-22 06:17:16Z imp $
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 <dev/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	DEVMETHOD(device_detach,	siodetach),
54
55	{ 0, 0 }
56};
57
58static driver_t sio_pci_driver = {
59	sio_driver_name,
60	sio_pci_methods,
61	0,
62};
63
64struct pci_ids {
65	u_int32_t	type;
66	const char	*desc;
67	int		rid;
68};
69
70static struct pci_ids pci_ids[] = {
71	{ 0x100812b9, "3COM PCI FaxModem", 0x10 },
72	{ 0x2000131f, "CyberSerial (1-port) 16550", 0x10 },
73	{ 0x01101407, "Koutech IOFLEX-2S PCI Dual Port Serial", 0x10 },
74	{ 0x01111407, "Koutech IOFLEX-2S PCI Dual Port Serial", 0x10 },
75	{ 0x048011c1, "Lucent kermit based PCI Modem", 0x14 },
76	{ 0x95211415, "Oxford Semiconductor PCI Dual Port Serial", 0x10 },
77	{ 0x7101135e, "SeaLevel Ultra 530.PCI Single Port Serial", 0x18 },
78	{ 0x0000151f, "SmartLink 5634PCV SurfRider", 0x10 },
79	{ 0x0103115d, "Xircom Cardbus modem", 0x10 },
80	{ 0x98459710, "Netmos Nm9845 PCI Bridge with Dual UART", 0x10 },
81	{ 0x01c0135c, "Quatech SSCLP-200/300", 0x18
82		/*
83		 * NB: You must mount the "SPAD" jumper to correctly detect
84		 * the FIFO on the UART.  Set the options on the jumpers,
85		 * we do not support the extra registers on the Quatech.
86		 */
87	},
88	{ 0x00000000, NULL, 0 }
89};
90
91static int
92sio_pci_attach(dev)
93	device_t	dev;
94{
95	u_int32_t	type;
96	struct pci_ids	*id;
97	int		flags;
98
99	type = pci_get_devid(dev);
100	id = pci_ids;
101	while (id->type && id->type != type)
102		id++;
103	if (id->desc == NULL)
104		return (ENXIO);
105	sio_pci_kludge_unit(dev);
106	if (resource_int_value("sio", device_get_unit(dev), "flags", &flags)
107	     == 0)
108		device_set_flags(dev, flags);
109	return (sioattach(dev, id->rid, 0UL));
110}
111
112/*
113 * Don't cut and paste this to other drivers.  It is a horrible kludge
114 * which will fail to work and also be unnecessary in future versions.
115 */
116static void
117sio_pci_kludge_unit(dev)
118	device_t dev;
119{
120	devclass_t	dc;
121	int		err;
122	int		start;
123	int		unit;
124
125	unit = 0;
126	start = 0;
127	while (resource_int_value("sio", unit, "port", &start) == 0 &&
128	    start > 0)
129		unit++;
130	if (device_get_unit(dev) < unit) {
131		dc = device_get_devclass(dev);
132		while (devclass_get_device(dc, unit))
133			unit++;
134		device_printf(dev, "moving to sio%d\n", unit);
135		err = device_set_unit(dev, unit);	/* EVIL DO NOT COPY */
136		if (err)
137			device_printf(dev, "error moving device %d\n", err);
138	}
139}
140
141static int
142sio_pci_probe(dev)
143	device_t	dev;
144{
145	u_int32_t	type;
146	struct pci_ids	*id;
147
148	type = pci_get_devid(dev);
149	id = pci_ids;
150	while (id->type && id->type != type)
151		id++;
152	if (id->desc == NULL)
153		return (ENXIO);
154	device_set_desc(dev, id->desc);
155#ifdef PC98
156	SET_FLAG(dev, SET_IFTYPE(COM_IF_NS16550));
157#endif
158	return (sioprobe(dev, id->rid, 0UL, 0));
159}
160
161DRIVER_MODULE(sio, pci, sio_pci_driver, sio_devclass, 0, 0);
162DRIVER_MODULE(sio, cardbus, sio_pci_driver, sio_devclass, 0, 0);
163