2 * Copyright (c) 2001 M. Warner Losh. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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.
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.
25 #include <sys/cdefs.h>
26 __FBSDID("$FreeBSD$");
28 #include <sys/param.h>
29 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/module.h>
34 #include <machine/bus.h>
36 #include <machine/resource.h>
38 #include <isa/isavar.h>
40 #include <dev/uart/uart.h>
41 #include <dev/uart/uart_bus.h>
43 static int uart_acpi_probe(device_t dev);
45 static device_method_t uart_acpi_methods[] = {
46 /* Device interface */
47 DEVMETHOD(device_probe, uart_acpi_probe),
48 DEVMETHOD(device_attach, uart_bus_attach),
49 DEVMETHOD(device_detach, uart_bus_detach),
53 static driver_t uart_acpi_driver = {
56 sizeof(struct uart_softc),
59 static struct isa_pnp_id acpi_ns8250_ids[] = {
60 {0x0005d041, "Standard PC COM port"}, /* PNP0500 */
61 {0x0105d041, "16550A-compatible COM port"}, /* PNP0501 */
66 uart_acpi_probe(device_t dev)
68 struct uart_softc *sc;
71 parent = device_get_parent(dev);
72 sc = device_get_softc(dev);
74 if (!ISA_PNP_PROBE(parent, dev, acpi_ns8250_ids)) {
75 sc->sc_class = &uart_ns8250_class;
76 return (uart_bus_probe(dev, 0, 0, 0, 0));
79 /* Add checks for non-ns8250 IDs here. */
83 DRIVER_MODULE(uart, acpi, uart_acpi_driver, uart_devclass, 0, 0);