uart_bus_ebus.c revision 127817 
1/*-
2 * Copyright (c) 2001 by Thomas Moestl <tmm@FreeBSD.org>.
3 * 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 OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
18 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
21 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/sys/dev/uart/uart_bus_ebus.c 127817 2004-04-03 23:02:02Z marcel $");
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/bus.h>
33#include <sys/kernel.h>
34#include <machine/bus.h>
35#include <sys/rman.h>
36#include <machine/resource.h>
37
38#include <dev/ofw/openfirm.h>
39#include <sparc64/ebus/ebusvar.h>
40
41#include <dev/uart/uart.h>
42#include <dev/uart/uart_bus.h>
43#include <dev/uart/uart_cpu.h>
44
45static int uart_ebus_probe(device_t dev);
46
47static device_method_t uart_ebus_methods[] = {
48	/* Device interface */
49	DEVMETHOD(device_probe,		uart_ebus_probe),
50	DEVMETHOD(device_attach,	uart_bus_attach),
51	DEVMETHOD(device_detach,	uart_bus_detach),
52	{ 0, 0 }
53};
54
55static driver_t uart_ebus_driver = {
56	uart_driver_name,
57	uart_ebus_methods,
58	sizeof(struct uart_softc),
59};
60
61static int
62uart_ebus_probe(device_t dev)
63{
64	const char *nm, *cmpt;
65	struct uart_softc *sc;
66	int error;
67
68	sc = device_get_softc(dev);
69	sc->sc_class = NULL;
70
71	nm = ebus_get_name(dev);
72	cmpt = ebus_get_compat(dev);
73	if (!strcmp(nm, "su") || !strcmp(nm, "su_pnp") || (cmpt != NULL &&
74	    (!strcmp(cmpt, "su") || !strcmp(cmpt, "su16550")))) {
75		sc->sc_class = &uart_ns8250_class;
76		return (uart_bus_probe(dev, 0, 0, 0, 0));
77	}
78	if (!strcmp(nm, "se")) {
79		sc->sc_class = &uart_sab82532_class;
80		error = uart_bus_probe(dev, 0, 0, 0, 1);
81		return ((error) ? error : -1);
82	}
83
84	return (ENXIO);
85}
86
87DRIVER_MODULE(uart, ebus, uart_ebus_driver, uart_devclass, 0, 0);
88