1/*	$NetBSD: com_obio.c,v 1.6 2018/12/08 17:46:10 thorpej Exp $	*/
2
3/*-
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Matt Thomas <matt@3am-software.com>.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33__KERNEL_RCSID(0, "$NetBSD: com_obio.c,v 1.6 2018/12/08 17:46:10 thorpej Exp $");
34
35#include <sys/param.h>
36#include <sys/systm.h>
37#include <sys/device.h>
38#include <sys/termios.h>
39
40#include <sys/bus.h>
41
42#include <arm/xscale/i80321var.h>
43
44#include <evbarm/iq80321/obiovar.h>
45
46#include <dev/ic/comreg.h>
47#include <dev/ic/comvar.h>
48
49struct com_obio_softc {
50	struct com_softc sc_com;
51
52	void *sc_ih;
53};
54
55int	com_obio_match(device_t, cfdata_t , void *);
56void	com_obio_attach(device_t, device_t, void *);
57
58CFATTACH_DECL_NEW(com_obio, sizeof(struct com_obio_softc),
59    com_obio_match, com_obio_attach, NULL, NULL);
60
61int
62com_obio_match(device_t parent, cfdata_t cf, void *aux)
63{
64
65	/* We take it on faith that the device is there. */
66	return (1);
67}
68
69void
70com_obio_attach(device_t parent, device_t self, void *aux)
71{
72	struct obio_attach_args *oba = aux;
73	struct com_obio_softc *osc = device_private(self);
74	struct com_softc *sc = &osc->sc_com;
75	bus_space_handle_t ioh;
76	int error;
77
78	sc->sc_dev = self;
79	sc->sc_frequency = COM_FREQ;
80	sc->sc_hwflags = COM_HW_NO_TXPRELOAD;
81	error = bus_space_map(oba->oba_st, oba->oba_addr, 8, 0, &ioh);
82	com_init_regs(&sc->sc_regs, oba->oba_st, ioh, oba->oba_addr);
83
84	if (error) {
85		aprint_error(": failed to map registers: %d\n", error);
86		return;
87	}
88
89	com_attach_subr(sc);
90
91	osc->sc_ih = i80321_intr_establish(oba->oba_irq, IPL_SERIAL,
92	    comintr, sc);
93	if (osc->sc_ih == NULL)
94		aprint_error_dev(self,
95		    "unable to establish interrupt at irq %d\n", oba->oba_irq);
96}
97