FreeBSD/Linux Kernel Cross Reference
sys/dev/hpc/hpcin.c
1 /* $NetBSD: hpcin.c,v 1.8 2002/10/02 16:33:49 thorpej 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 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the NetBSD
21 * Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39 #include <sys/cdefs.h>
40 __KERNEL_RCSID(0, "$NetBSD: hpcin.c,v 1.8 2002/10/02 16:33:49 thorpej Exp $");
41
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/device.h>
45
46 #include <machine/config_hook.h>
47 #include <machine/bus.h>
48
49 #include <dev/hpc/hpciovar.h>
50 #include <dev/hpc/hpciomanvar.h>
51
52 #include "locators.h"
53
54 int hpcin_match(struct device *, struct cfdata *, void *);
55 void hpcin_attach(struct device *, struct device *, void *);
56 int hpcin_intr(void *);
57
58 struct hpcin_softc {
59 struct device sc_dev;
60 struct hpcioman_attach_args sc_hma;
61 hpcio_intr_handle_t sc_ih;
62 config_call_tag sc_ct;
63 };
64
65 #define sc_hc sc_hma.hma_hc
66 #define sc_intr_mode sc_hma.hma_intr_mode
67 #define sc_type sc_hma.hma_type
68 #define sc_id sc_hma.hma_id
69 #define sc_port sc_hma.hma_port
70 #define sc_initvalue sc_hma.hma_initvalue
71 #define sc_on sc_hma.hma_on
72 #define sc_off sc_hma.hma_off
73 #define sc_connect sc_hma.hma_connect
74
75 CFATTACH_DECL(hpcin, sizeof(struct hpcin_softc),
76 hpcin_match, hpcin_attach, NULL, NULL);
77
78 int
79 hpcin_match(struct device *parent, struct cfdata *cf, void *aux)
80 {
81 return (1);
82 }
83
84 void
85 hpcin_attach(struct device *parent, struct device *self, void *aux)
86 {
87 struct hpcioman_attach_args *hma = aux;
88 struct hpcin_softc *sc = (void *)self;
89
90 if (hma->hma_hc == NULL ||
91 hma->hma_type == HPCIOMANCF_EVTYPE_DEFAULT ||
92 hma->hma_id == HPCIOMANCF_ID_DEFAULT ||
93 hma->hma_port == HPCIOMANCF_PORT_DEFAULT) {
94 printf(": ignored\n");
95 return;
96 }
97 printf("\n");
98
99 sc->sc_hma = *hma; /* structure assignment */
100
101 /* install interrupt handler */
102 sc->sc_ih = hpcio_intr_establish(sc->sc_hc, sc->sc_port,
103 sc->sc_intr_mode, hpcin_intr, sc);
104 if (sc->sc_ih == NULL)
105 printf("hpcin: can't install interrupt handler\n");
106
107 if (sc->sc_connect)
108 sc->sc_ct = config_connect(sc->sc_type, sc->sc_id);
109 }
110
111 int
112 hpcin_intr(void *arg)
113 {
114 struct hpcin_softc *sc = arg;
115 int on;
116
117 on = (hpcio_portread(sc->sc_hc, sc->sc_port) == sc->sc_on);
118 if (sc->sc_connect) {
119 config_connected_call(sc->sc_ct, (void *)on);
120 } else {
121 printf("%s: type=%d, id=%d\n", __FUNCTION__,
122 sc->sc_type, sc->sc_id);
123 config_hook_call(sc->sc_type, sc->sc_id, (void *)on);
124 printf("done.\n");
125 }
126
127 return (0);
128 }
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