1 /* $NetBSD: lpt_supio.c,v 1.14 2011/07/19 15:55:27 dyoung Exp $ */
2
3 /*-
4 * Copyright (c) 1997 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Ignatios Souvatzis.
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: lpt_supio.c,v 1.14 2011/07/19 15:55:27 dyoung Exp $");
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/ioctl.h>
38 #include <sys/select.h>
39 #include <sys/tty.h>
40 #include <sys/proc.h>
41 #include <sys/conf.h>
42 #include <sys/file.h>
43 #include <sys/uio.h>
44 #include <sys/kernel.h>
45 #include <sys/syslog.h>
46 #include <sys/types.h>
47 #include <sys/device.h>
48 #include <sys/bus.h>
49
50 #include <machine/intr.h>
51
52 #include <dev/ic/lptreg.h>
53 #include <dev/ic/lptvar.h>
54
55 #include <amiga/dev/supio.h>
56
57 struct lptsupio_softc {
58 struct lpt_softc sc_lpt;
59 struct isr sc_isr;
60 void (*sc_intack)(void *);
61 };
62
63 int lpt_supio_match(device_t, cfdata_t , void *);
64 void lpt_supio_attach(device_t, device_t, void *);
65 int lpt_supio_intr(void *p);
66
67 CFATTACH_DECL_NEW(lpt_supio, sizeof(struct lptsupio_softc),
68 lpt_supio_match, lpt_supio_attach, NULL, NULL);
69
70 int
lpt_supio_match(device_t parent,cfdata_t match,void * aux)71 lpt_supio_match(device_t parent, cfdata_t match, void *aux)
72 {
73 struct supio_attach_args *supa = aux;
74
75 if (strcmp(supa->supio_name,"lpt"))
76 return 0;
77
78 return (1);
79 }
80
81 int
lpt_supio_intr(void * p)82 lpt_supio_intr(void *p)
83 {
84 struct lptsupio_softc *sc = (void *)p;
85 int rc;
86
87 rc = lptintr(&sc->sc_lpt);
88 if (sc->sc_intack)
89 (*sc->sc_intack)(p);
90 return (rc);
91 }
92
93 void
lpt_supio_attach(device_t parent,device_t self,void * aux)94 lpt_supio_attach(device_t parent, device_t self, void *aux)
95 {
96 struct lptsupio_softc *sc = device_private(self);
97 struct lpt_softc *lsc = &sc->sc_lpt;
98 int iobase;
99 bus_space_tag_t iot;
100 struct supio_attach_args *supa = aux;
101
102 /*
103 * We're living on a superio chip.
104 */
105 lsc->sc_dev = self;
106 iobase = supa->supio_iobase;
107 iot = lsc->sc_iot = supa->supio_iot;
108 sc->sc_intack = (void *)supa->supio_arg;
109
110 aprint_normal(" port 0x%04x ipl %d\n", iobase, supa->supio_ipl);
111 if (bus_space_map(iot, iobase, LPT_NPORTS, 0, &lsc->sc_ioh)) {
112 aprint_error_dev(self, "io mapping failed\n");
113 return;
114 }
115
116 lpt_attach_subr(lsc);
117
118 sc->sc_isr.isr_intr = lpt_supio_intr;
119 sc->sc_isr.isr_arg = sc;
120 sc->sc_isr.isr_ipl = supa->supio_ipl;
121 add_isr(&sc->sc_isr);
122 }
123