2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2004 Olivier Houchard. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
31 #include <sys/systm.h>
34 #include <sys/kernel.h>
35 #include <sys/module.h>
36 #include <machine/bus.h>
38 #include <machine/resource.h>
40 #include <dev/pci/pcivar.h>
42 #include <dev/uart/uart.h>
43 #include <dev/uart/uart_bus.h>
44 #include <dev/uart/uart_cpu.h>
46 #include <dev/ic/ns16550.h>
50 static int uart_i81342_probe(device_t dev);
52 static device_method_t uart_i81342_methods[] = {
53 /* Device interface */
54 DEVMETHOD(device_probe, uart_i81342_probe),
55 DEVMETHOD(device_attach, uart_bus_attach),
56 DEVMETHOD(device_detach, uart_bus_detach),
60 static driver_t uart_i81342_driver = {
63 sizeof(struct uart_softc),
66 extern SLIST_HEAD(uart_devinfo_list, uart_devinfo) uart_sysdevs;
68 uart_i81342_probe(device_t dev)
70 struct uart_softc *sc;
73 sc = device_get_softc(dev);
74 sc->sc_class = &uart_ns8250_class;
75 if (device_get_unit(dev) == 0) {
76 sc->sc_sysdev = SLIST_FIRST(&uart_sysdevs);
77 bcopy(&sc->sc_sysdev->bas, &sc->sc_bas, sizeof(sc->sc_bas));
79 sc->sc_rres = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT,
80 &sc->sc_rrid, uart_getrange(sc->sc_class), RF_ACTIVE);
82 sc->sc_bas.bsh = rman_get_bushandle(sc->sc_rres);
83 sc->sc_bas.bst = rman_get_bustag(sc->sc_rres);
84 bus_space_write_4(sc->sc_bas.bst, sc->sc_bas.bsh, REG_IER << 2,
86 bus_release_resource(dev, sc->sc_rtype, sc->sc_rrid, sc->sc_rres);
88 err = uart_bus_probe(dev, 2, 0, 33334000, 0, device_get_unit(dev));
89 sc->sc_rxfifosz = sc->sc_txfifosz = 1;
94 DRIVER_MODULE(uart, obio, uart_i81342_driver, uart_devclass, 0, 0);