lpt_jensenio.c revision 1.11 
1/* $NetBSD: lpt_jensenio.c,v 1.11 2011/07/01 19:22:35 dyoung Exp $ */
2
3/*-
4 * Copyright (c) 1999 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe.
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>			/* RCS ID & Copyright macro defns */
33
34__KERNEL_RCSID(0, "$NetBSD: lpt_jensenio.c,v 1.11 2011/07/01 19:22:35 dyoung Exp $");
35
36#include <sys/param.h>
37#include <sys/systm.h>
38#include <sys/ioctl.h>
39#include <sys/select.h>
40#include <sys/tty.h>
41#include <sys/proc.h>
42#include <sys/conf.h>
43#include <sys/file.h>
44#include <sys/uio.h>
45#include <sys/kernel.h>
46#include <sys/syslog.h>
47#include <sys/types.h>
48#include <sys/device.h>
49
50#include <machine/intr.h>
51#include <sys/bus.h>
52
53#include <dev/ic/lptreg.h>
54#include <dev/ic/lptvar.h>
55
56#include <dev/eisa/eisavar.h>
57
58#include <dev/isa/isavar.h>
59
60#include <alpha/jensenio/jenseniovar.h>
61
62struct lpt_jensenio_softc {
63	struct lpt_softc sc_lpt;	/* real "lpt" softc */
64
65	/* Jensen-specific goo. */
66	void	*sc_ih;			/* interrupt handler */
67};
68
69int	lpt_jensenio_match(device_t, cfdata_t , void *);
70void	lpt_jensenio_attach(device_t, device_t, void *);
71
72CFATTACH_DECL_NEW(lpt_jensenio, sizeof(struct lpt_jensenio_softc),
73    lpt_jensenio_match, lpt_jensenio_attach, NULL, NULL);
74
75int
76lpt_jensenio_match(device_t parent, cfdata_t match, void *aux)
77{
78	struct jensenio_attach_args *ja = aux;
79
80	/* Always present. */
81	if (strcmp(ja->ja_name, match->cf_name) == 0)
82		return (1);
83
84	return (0);
85}
86
87void
88lpt_jensenio_attach(device_t parent, device_t self, void *aux)
89{
90	struct lpt_jensenio_softc *jsc = device_private(self);
91	struct lpt_softc *sc = &jsc->sc_lpt;
92	struct jensenio_attach_args *ja = aux;
93	const char *intrstr;
94
95	sc->sc_dev = self;
96	sc->sc_iot = ja->ja_iot;
97
98	if (bus_space_map(sc->sc_iot, ja->ja_ioaddr, LPT_NPORTS, 0,
99	    &sc->sc_ioh) != 0) {
100		aprint_error(": can't map i/o space\n");
101		return;
102	}
103
104	aprint_normal("\n");
105	aprint_naive("\n");
106
107	lpt_attach_subr(sc);
108
109	intrstr = eisa_intr_string(ja->ja_ec, ja->ja_irq[0]);
110	jsc->sc_ih = eisa_intr_establish(ja->ja_ec, ja->ja_irq[0],
111	    IST_EDGE, IPL_TTY, lptintr, sc);
112	if (jsc->sc_ih == NULL) {
113		aprint_error_dev(self, "unable to establish interrupt");
114		if (intrstr != NULL)
115			aprint_error(" at %s", intrstr);
116		aprint_error("\n");
117		return;
118	}
119	aprint_normal_dev(self, "interrupting at %s\n", intrstr);
120}
121