1 /*-
2 * Copyright (c) 2004 Olivier Houchard. 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/module.h>
34 #include <machine/bus.h>
35 #include <sys/rman.h>
36 #include <machine/resource.h>
37
38 #include <dev/pci/pcivar.h>
39
40 #include <dev/uart/uart.h>
41 #include <dev/uart/uart_bus.h>
42 #include <dev/uart/uart_cpu.h>
43
44 #include <dev/ic/ns16550.h>
45
46 #include "uart_if.h"
47
48 static int uart_i81342_probe(device_t dev);
49
50 static device_method_t uart_i81342_methods[] = {
51 /* Device interface */
52 DEVMETHOD(device_probe, uart_i81342_probe),
53 DEVMETHOD(device_attach, uart_bus_attach),
54 DEVMETHOD(device_detach, uart_bus_detach),
55 { 0, 0 }
56 };
57
58 static driver_t uart_i81342_driver = {
59 uart_driver_name,
60 uart_i81342_methods,
61 sizeof(struct uart_softc),
62 };
63
64 extern SLIST_HEAD(uart_devinfo_list, uart_devinfo) uart_sysdevs;
65 static int
uart_i81342_probe(device_t dev)66 uart_i81342_probe(device_t dev)
67 {
68 struct uart_softc *sc;
69 int err;
70
71 sc = device_get_softc(dev);
72 sc->sc_class = &uart_ns8250_class;
73 if (device_get_unit(dev) == 0) {
74 sc->sc_sysdev = SLIST_FIRST(&uart_sysdevs);
75 bcopy(&sc->sc_sysdev->bas, &sc->sc_bas, sizeof(sc->sc_bas));
76 }
77 sc->sc_rres = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->sc_rrid,
78 0, ~0, uart_getrange(sc->sc_class), RF_ACTIVE);
79
80 sc->sc_bas.bsh = rman_get_bushandle(sc->sc_rres);
81 sc->sc_bas.bst = rman_get_bustag(sc->sc_rres);
82 bus_space_write_4(sc->sc_bas.bst, sc->sc_bas.bsh, REG_IER << 2,
83 0x40 | 0x10);
84 bus_release_resource(dev, sc->sc_rtype, sc->sc_rrid, sc->sc_rres);
85
86 err = uart_bus_probe(dev, 2, 33334000, 0, device_get_unit(dev));
87 sc->sc_rxfifosz = sc->sc_txfifosz = 1;
88 return (err);
89 }
90
91
92 DRIVER_MODULE(uart, obio, uart_i81342_driver, uart_devclass, 0, 0);
93