1/*-
2 * Copyright (c) 2006 Marcel Moolenaar.  All rights reserved.
3 * Copyright (c) 2002 JF Hay.  All rights reserved.
4 * Copyright (c) 2001 M. Warner Losh.  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 *
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.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: stable/11/sys/dev/uart/uart_bus_puc.c 340145 2018-11-04 23:28:56Z mmacy $");
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/bus.h>
33#include <sys/conf.h>
34#include <sys/kernel.h>
35#include <sys/module.h>
36
37#include <machine/bus.h>
38#include <sys/rman.h>
39#include <machine/resource.h>
40
41#include <dev/puc/puc_bus.h>
42
43#include <dev/uart/uart.h>
44#include <dev/uart/uart_bus.h>
45
46static int uart_puc_probe(device_t dev);
47
48static device_method_t uart_puc_methods[] = {
49	/* Device interface */
50	DEVMETHOD(device_probe,		uart_puc_probe),
51	DEVMETHOD(device_attach,	uart_bus_attach),
52	DEVMETHOD(device_detach,	uart_bus_detach),
53	/* Serdev interface */
54	DEVMETHOD(serdev_ihand,		uart_bus_ihand),
55	DEVMETHOD(serdev_ipend,		uart_bus_ipend),
56	{ 0, 0 }
57};
58
59static driver_t uart_puc_driver = {
60	uart_driver_name,
61	uart_puc_methods,
62	sizeof(struct uart_softc),
63};
64
65static int
66uart_puc_probe(device_t dev)
67{
68	device_t parent;
69	struct uart_softc *sc;
70	uintptr_t rclk, type;
71
72	parent = device_get_parent(dev);
73	sc = device_get_softc(dev);
74
75	if (BUS_READ_IVAR(parent, dev, PUC_IVAR_TYPE, &type))
76		return (ENXIO);
77	if (type != PUC_TYPE_SERIAL)
78		return (ENXIO);
79
80	sc->sc_class = &uart_ns8250_class;
81
82	if (BUS_READ_IVAR(parent, dev, PUC_IVAR_CLOCK, &rclk))
83		rclk = 0;
84	return (uart_bus_probe(dev, 0, 0, rclk, 0, 0, 0));
85}
86
87DRIVER_MODULE(uart, puc, uart_puc_driver, uart_devclass, 0, 0);
88