1 /* $NetBSD: hpcin.c,v 1.15 2012/10/27 17:18:17 chs 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 1.15 2012/10/27 17:18:17 chs 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
47 int hpcin_match(device_t, cfdata_t, void *);
48 void hpcin_attach(device_t, device_t, void *);
49 int hpcin_intr(void *);
50
51 struct hpcin_softc {
52 struct hpcioman_attach_args sc_hma;
53 hpcio_intr_handle_t sc_ih;
54 config_call_tag sc_ct;
55 };
56
57 #define sc_hc sc_hma.hma_hc
58 #define sc_intr_mode sc_hma.hma_intr_mode
59 #define sc_type sc_hma.hma_type
60 #define sc_id sc_hma.hma_id
61 #define sc_port sc_hma.hma_port
62 #define sc_initvalue sc_hma.hma_initvalue
63 #define sc_on sc_hma.hma_on
64 #define sc_off sc_hma.hma_off
65 #define sc_connect sc_hma.hma_connect
66
67 CFATTACH_DECL_NEW(hpcin, sizeof(struct hpcin_softc),
68 hpcin_match, hpcin_attach, NULL, NULL);
69
70 int
hpcin_match(device_t parent,cfdata_t cf,void * aux)71 hpcin_match(device_t parent, cfdata_t cf, void *aux)
72 {
73 return (1);
74 }
75
76 void
hpcin_attach(device_t parent,device_t self,void * aux)77 hpcin_attach(device_t parent, device_t self, void *aux)
78 {
79 struct hpcioman_attach_args *hma = aux;
80 struct hpcin_softc *sc = device_private(self);
81
82 if (hma->hma_hc == NULL ||
83 hma->hma_type == HPCIOMANCF_EVTYPE_DEFAULT ||
84 hma->hma_id == HPCIOMANCF_ID_DEFAULT ||
85 hma->hma_port == HPCIOMANCF_PORT_DEFAULT) {
86 printf(": ignored\n");
87 return;
88 }
89 printf("\n");
90
91 sc->sc_hma = *hma; /* structure assignment */
92
93 /* install interrupt handler */
94 sc->sc_ih = hpcio_intr_establish(sc->sc_hc, sc->sc_port,
95 sc->sc_intr_mode, hpcin_intr, sc);
96 if (sc->sc_ih == NULL)
97 printf("hpcin: can't install interrupt handler\n");
98
99 if (sc->sc_connect)
100 sc->sc_ct = config_connect(sc->sc_type, sc->sc_id);
101 }
102
103 int
hpcin_intr(void * arg)104 hpcin_intr(void *arg)
105 {
106 struct hpcin_softc *sc = arg;
107 int on;
108
109 on = (hpcio_portread(sc->sc_hc, sc->sc_port) == sc->sc_on);
110 if (sc->sc_connect) {
111 config_connected_call(sc->sc_ct, (void *)on);
112 } else {
113 printf("%s: type=%d, id=%d\n", __func__,
114 sc->sc_type, sc->sc_id);
115 config_hook_call(sc->sc_type, sc->sc_id, (void *)on);
116 printf("done.\n");
117 }
118
119 return (0);
120 }
121