1 /*-
2 * Copyright (c) 2001 M. Warner Losh. All rights reserved.
3 * Copyright (c) 2003 Norikatsu Shigemura, Takenori Watanabe 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("$FreeBSD$");
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/module.h>
35 #include <machine/bus.h>
36 #include <machine/resource.h>
37
38 #include <dev/pccard/pccard_cis.h>
39 #include <dev/pccard/pccardvar.h>
40
41 #include <dev/uart/uart.h>
42 #include <dev/uart/uart_bus.h>
43
44 #include "pccarddevs.h"
45
46 static int uart_pccard_probe(device_t dev);
47 static int uart_pccard_attach(device_t dev);
48
49 static device_method_t uart_pccard_methods[] = {
50 /* Device interface */
51 DEVMETHOD(device_probe, uart_pccard_probe),
52 DEVMETHOD(device_attach, uart_pccard_attach),
53 DEVMETHOD(device_detach, uart_bus_detach),
54
55 { 0, 0 }
56 };
57
58 static driver_t uart_pccard_driver = {
59 uart_driver_name,
60 uart_pccard_methods,
61 sizeof(struct uart_softc),
62 };
63
64 static int
uart_pccard_probe(device_t dev)65 uart_pccard_probe(device_t dev)
66 {
67 int error;
68 uint32_t fcn;
69
70 fcn = PCCARD_FUNCTION_UNSPEC;
71 error = pccard_get_function(dev, &fcn);
72 if (error != 0)
73 return (error);
74 /*
75 * If a serial card, we are likely the right driver. However,
76 * some serial cards are better serviced by other drivers, so
77 * allow other drivers to claim it, if they want.
78 */
79 if (fcn == PCCARD_FUNCTION_SERIAL)
80 return (BUS_PROBE_GENERIC);
81
82 return (ENXIO);
83 }
84
85 static int
uart_pccard_attach(device_t dev)86 uart_pccard_attach(device_t dev)
87 {
88 struct uart_softc *sc;
89 int error;
90
91 sc = device_get_softc(dev);
92 sc->sc_class = &uart_ns8250_class;
93
94 error = uart_bus_probe(dev, 0, 0, 0, 0);
95 if (error > 0)
96 return (error);
97 return (uart_bus_attach(dev));
98 }
99
100 DRIVER_MODULE(uart, pccard, uart_pccard_driver, uart_devclass, 0, 0);
101