1 /* $OpenBSD: lpt_ebus.c,v 1.12 2022/10/16 01:22:39 jsg Exp $ */
2 /* $NetBSD: lpt_ebus.c,v 1.8 2002/03/01 11:51:00 martin Exp $ */
3
4 /*
5 * Copyright (c) 1999, 2000 Matthew R. Green
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
24 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 /*
31 * NS Super I/O PC87332VLJ "lpt" to ebus attachment
32 */
33
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/device.h>
37 #include <sys/tty.h>
38
39 #include <machine/bus.h>
40
41 #include <sparc64/dev/ebusreg.h>
42 #include <sparc64/dev/ebusvar.h>
43
44 #include <dev/ic/lptvar.h>
45
46 struct lpt_ebus_softc {
47 struct lpt_softc sc_lpt;
48 bus_space_handle_t sc_ctrl;
49 };
50
51 int lpt_ebus_match(struct device *, void *, void *);
52 void lpt_ebus_attach(struct device *, struct device *, void *);
53
54 const struct cfattach lpt_ebus_ca = {
55 sizeof(struct lpt_ebus_softc), lpt_ebus_match, lpt_ebus_attach
56 };
57
58 int
lpt_ebus_match(struct device * parent,void * match,void * aux)59 lpt_ebus_match(struct device *parent, void *match, void *aux)
60 {
61 struct ebus_attach_args *ea = aux;
62
63 if (!strcmp(ea->ea_name, "ecpp") ||
64 !strcmp(ea->ea_name, "parallel"))
65 return (1);
66 return (0);
67 }
68
69 void
lpt_ebus_attach(struct device * parent,struct device * self,void * aux)70 lpt_ebus_attach(struct device *parent, struct device *self, void *aux)
71 {
72 struct lpt_ebus_softc *sc = (void *)self;
73 struct ebus_attach_args *ea = aux;
74
75
76 if (ebus_bus_map(ea->ea_memtag, 0,
77 EBUS_PADDR_FROM_REG(&ea->ea_regs[0]), ea->ea_regs[0].size,
78 0, 0, &sc->sc_lpt.sc_ioh) == 0) {
79 sc->sc_lpt.sc_iot = ea->ea_memtag;
80 } else if (ebus_bus_map(ea->ea_iotag, 0,
81 EBUS_PADDR_FROM_REG(&ea->ea_regs[0]), ea->ea_regs[0].size,
82 0, 0, &sc->sc_lpt.sc_ioh) == 0) {
83 sc->sc_lpt.sc_iot = ea->ea_iotag;
84 } else {
85 printf(": can't map register space\n");
86 return;
87 }
88
89 if (ebus_bus_map(sc->sc_lpt.sc_iot, 0,
90 EBUS_PADDR_FROM_REG(&ea->ea_regs[1]), ea->ea_regs[1].size, 0, 0,
91 &sc->sc_ctrl) != 0) {
92 printf(": can't map control space\n");
93 bus_space_unmap(sc->sc_lpt.sc_iot, sc->sc_lpt.sc_ioh,
94 ea->ea_regs[0].size);
95 return;
96 }
97
98 sc->sc_lpt.sc_flags |= LPT_POLLED;
99 printf(": polled");
100
101 lpt_attach_common(&sc->sc_lpt);
102 }
103