1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright 2002 by Peter Grehan. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
24 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 /*
31 * PSIM local bus 16550
32 */
33
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/bus.h>
37 #include <sys/conf.h>
38 #include <sys/kernel.h>
39 #include <sys/lock.h>
40 #include <sys/malloc.h>
41 #include <sys/mutex.h>
42 #include <sys/module.h>
43 #include <machine/bus.h>
44 #include <sys/timepps.h>
45
46 #include <dev/ofw/openfirm.h>
47 #include <powerpc/psim/iobusvar.h>
48
49 #include <dev/uart/uart.h>
50 #include <dev/uart/uart_bus.h>
51
52 static int uart_iobus_probe(device_t dev);
53
54 static device_method_t uart_iobus_methods[] = {
55 /* Device interface */
56 DEVMETHOD(device_probe, uart_iobus_probe),
57 DEVMETHOD(device_attach, uart_bus_attach),
58 DEVMETHOD(device_detach, uart_bus_detach),
59 { 0, 0 }
60 };
61
62 static driver_t uart_iobus_driver = {
63 uart_driver_name,
64 uart_iobus_methods,
65 sizeof(struct uart_softc),
66 };
67
68 static int
uart_iobus_probe(device_t dev)69 uart_iobus_probe(device_t dev)
70 {
71 struct uart_softc *sc;
72 char *type;
73
74 type = iobus_get_name(dev);
75 if (strncmp(type, "com", 3) != 0)
76 return (ENXIO);
77
78 sc = device_get_softc(dev);
79 sc->sc_class = &uart_ns8250_class;
80
81 device_set_desc(dev, "PSIM serial port");
82 return (uart_bus_probe(dev, 0, 0, 0, 0, 0, 0));
83 }
84
85 DRIVER_MODULE(uart, iobus, uart_iobus_driver, 0, 0);
86