1/*	$NetBSD: hpcin.c,v 1.13 2009/05/12 12:13:49 cegger Exp $	*/
2
3/*-
4 * Copyright (c) 2000, 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by UCHIYAMA Yasushi.
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: hpcin.c,v 1.13 2009/05/12 12:13:49 cegger Exp $");
34
35#include <sys/param.h>
36#include <sys/systm.h>
37#include <sys/device.h>
38
39#include <machine/config_hook.h>
40#include <sys/bus.h>
41
42#include <dev/hpc/hpciovar.h>
43#include <dev/hpc/hpciomanvar.h>
44
45#include "locators.h"
46
47int	hpcin_match(device_t, cfdata_t, void *);
48void	hpcin_attach(device_t, device_t, void *);
49int	hpcin_intr(void *);
50
51struct hpcin_softc {
52	struct device sc_dev;
53	struct hpcioman_attach_args sc_hma;
54	hpcio_intr_handle_t sc_ih;
55	config_call_tag sc_ct;
56};
57
58#define sc_hc		sc_hma.hma_hc
59#define sc_intr_mode	sc_hma.hma_intr_mode
60#define sc_type		sc_hma.hma_type
61#define sc_id		sc_hma.hma_id
62#define sc_port		sc_hma.hma_port
63#define sc_initvalue	sc_hma.hma_initvalue
64#define sc_on		sc_hma.hma_on
65#define sc_off		sc_hma.hma_off
66#define sc_connect	sc_hma.hma_connect
67
68CFATTACH_DECL(hpcin, sizeof(struct hpcin_softc),
69    hpcin_match, hpcin_attach, NULL, NULL);
70
71int
72hpcin_match(device_t parent, cfdata_t cf, void *aux)
73{
74	return (1);
75}
76
77void
78hpcin_attach(device_t parent, device_t self, void *aux)
79{
80	struct hpcioman_attach_args *hma = aux;
81	struct hpcin_softc *sc = device_private(self);
82
83	if (hma->hma_hc == NULL ||
84	    hma->hma_type == HPCIOMANCF_EVTYPE_DEFAULT ||
85	    hma->hma_id == HPCIOMANCF_ID_DEFAULT ||
86	    hma->hma_port == HPCIOMANCF_PORT_DEFAULT) {
87		printf(": ignored\n");
88		return;
89	}
90	printf("\n");
91
92	sc->sc_hma = *hma;	/* structure assignment */
93
94	/* install interrupt handler */
95	sc->sc_ih = hpcio_intr_establish(sc->sc_hc, sc->sc_port,
96	    sc->sc_intr_mode, hpcin_intr, sc);
97	if (sc->sc_ih == NULL)
98		printf("hpcin: can't install interrupt handler\n");
99
100	if (sc->sc_connect)
101		sc->sc_ct = config_connect(sc->sc_type, sc->sc_id);
102}
103
104int
105hpcin_intr(void *arg)
106{
107	struct hpcin_softc *sc = arg;
108	int on;
109
110	on = (hpcio_portread(sc->sc_hc, sc->sc_port) == sc->sc_on);
111	if (sc->sc_connect) {
112		config_connected_call(sc->sc_ct, (void *)on);
113	} else {
114		printf("%s: type=%d, id=%d\n", __func__,
115		    sc->sc_type, sc->sc_id);
116		config_hook_call(sc->sc_type, sc->sc_id, (void *)on);
117		printf("done.\n");
118	}
119
120	return (0);
121}
122