sio_puc.c revision 102892 
1/*-
2 * Copyright (c) 2002 JF Hay.  All rights reserved.
3 * Copyright (c) 2001 M. Warner Losh.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include <sys/cdefs.h>
27__FBSDID("$FreeBSD: head/sys/dev/sio/sio_puc.c 102892 2002-09-03 11:17:38Z phk $");
28
29#include <sys/param.h>
30#include <sys/systm.h>
31#include <sys/bus.h>
32#include <sys/conf.h>
33#include <sys/kernel.h>
34#include <sys/lock.h>
35#include <sys/malloc.h>
36#include <sys/mutex.h>
37#include <sys/module.h>
38#include <sys/tty.h>
39#include <machine/bus_pio.h>
40#include <machine/bus.h>
41#include <sys/timepps.h>
42
43#include <dev/pci/pcivar.h>
44#include <dev/puc/pucvar.h>
45#include <dev/sio/siovar.h>
46#include <dev/sio/sioreg.h>
47
48static	int	sio_puc_attach(device_t dev);
49static	int	sio_puc_probe(device_t dev);
50
51static device_method_t sio_puc_methods[] = {
52	/* Device interface */
53	DEVMETHOD(device_probe,		sio_puc_probe),
54	DEVMETHOD(device_attach,	sio_puc_attach),
55
56	{ 0, 0 }
57};
58
59static driver_t sio_puc_driver = {
60	sio_driver_name,
61	sio_puc_methods,
62	0,
63};
64
65static int
66sio_puc_attach(dev)
67	device_t	dev;
68{
69	u_int rclk;
70
71	if (BUS_READ_IVAR(device_get_parent(dev), dev, PUC_IVAR_FREQ,
72	    &rclk) != 0)
73		rclk = DEFAULT_RCLK;
74	return (sioattach(dev, 0, rclk));
75}
76
77static int
78sio_puc_probe(dev)
79	device_t	dev;
80{
81	u_int rclk;
82
83	if (BUS_READ_IVAR(device_get_parent(dev), dev, PUC_IVAR_FREQ,
84	    &rclk) != 0)
85		rclk = DEFAULT_RCLK;
86#ifdef PC98
87	SET_FLAG(dev, SET_IFTYPE(COM_IF_NS16550));
88#endif
89	return (sioprobe(dev, 0, (u_long)rclk, 1));
90}
91
92DRIVER_MODULE(sio, puc, sio_puc_driver, sio_devclass, 0, 0);
93