xref: /freebsd-11-stable/sys/dev/sio/sio_pccard.c (revision 4ab2e064d7950be84256d671a7ae93f87cc6aa36)
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("$FreeBSD$");
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.h>
39 #include <machine/resource.h>
40 #include <sys/timepps.h>
41 
42 #include <dev/pccard/pccard_cis.h>
43 #include <dev/pccard/pccardvar.h>
44 
45 #include <dev/sio/siovar.h>
46 
47 static	int	sio_pccard_attach(device_t dev);
48 static	int	sio_pccard_probe(device_t dev);
49 
50 static device_method_t sio_pccard_methods[] = {
51 	/* Device interface */
52 	DEVMETHOD(device_probe,		sio_pccard_probe),
53 	DEVMETHOD(device_attach,	sio_pccard_attach),
54 	DEVMETHOD(device_detach,	siodetach),
55 
56 	{ 0, 0 }
57 };
58 
59 static driver_t sio_pccard_driver = {
60 	sio_driver_name,
61 	sio_pccard_methods,
62 	0,
63 };
64 
65 static int
sio_pccard_probe(device_t dev)66 sio_pccard_probe(device_t dev)
67 {
68 	int		error = 0;
69 	u_int32_t	fcn = PCCARD_FUNCTION_UNSPEC;
70 
71 	error = pccard_get_function(dev, &fcn);
72 	if (error != 0)
73 		return (error);
74 
75 	/*
76 	 * If a serial card, we are likely the right driver.  However,
77 	 * some serial cards are better servered by other drivers, so
78 	 * allow other drivers to claim it, if they want.
79 	 */
80 	if (fcn == PCCARD_FUNCTION_SERIAL)
81 		return (-100);
82 	return (ENXIO);
83 }
84 
85 static int
sio_pccard_attach(device_t dev)86 sio_pccard_attach(device_t dev)
87 {
88 	int err;
89 
90 #ifdef PC98
91 	SET_FLAG(dev, SET_IFTYPE(COM_IF_MODEM_CARD));
92 #endif
93 	/* Do not probe IRQ - pccard doesn't turn on the interrupt line */
94 	/* until bus_setup_intr */
95 	if ((err = sioprobe(dev, 0, 0UL, 1)) > 0)
96 		return (err);
97 	return (sioattach(dev, 0, 0UL));
98 }
99 
100 DRIVER_MODULE(sio, pccard, sio_pccard_driver, sio_devclass, 0, 0);
101