1 /* $OpenBSD: mongoose_gsc.c,v 1.2 2022/03/13 08:04:38 mpi Exp $ */
2
3 /*
4 * Copyright (c) 2004, Miodrag Vallat.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #include <sys/param.h>
29 #include <sys/systm.h>
30 #include <sys/device.h>
31
32 #include <machine/bus.h>
33 #include <machine/autoconf.h>
34
35 #include <hppa/dev/cpudevs.h>
36
37 #include <dev/eisa/eisavar.h>
38 #include <dev/isa/isavar.h>
39
40 #include <hppa/dev/mongoosereg.h>
41 #include <hppa/dev/mongoosevar.h>
42
43 #include <hppa/gsc/gscbusvar.h>
44
45 void mgattach_gsc(struct device *, struct device *, void *);
46 int mgmatch_gsc(struct device *, void *, void *);
47
48 const struct cfattach mg_gsc_ca = {
49 sizeof(struct mongoose_softc), mgmatch_gsc, mgattach_gsc
50 };
51
52 int
mgmatch_gsc(struct device * parent,void * cfdata,void * aux)53 mgmatch_gsc(struct device *parent, void *cfdata, void *aux)
54 {
55 struct gsc_attach_args *ga = aux;
56
57 if (ga->ga_type.iodc_type != HPPA_TYPE_BHA ||
58 ga->ga_type.iodc_sv_model != HPPA_BHA_WEISA)
59 return (0);
60
61 return (1);
62 }
63
64 void
mgattach_gsc(struct device * parent,struct device * self,void * aux)65 mgattach_gsc(struct device *parent, struct device *self, void *aux)
66 {
67 struct mongoose_softc *sc = (struct mongoose_softc *)self;
68 struct gsc_attach_args *ga = aux;
69 bus_space_handle_t ioh;
70
71 sc->sc_bt = ga->ga_iot;
72 sc->sc_iomap = ga->ga_hpa;
73
74 if (bus_space_map(ga->ga_iot, ga->ga_hpa + MONGOOSE_MONGOOSE,
75 sizeof(struct mongoose_regs), 0, &ioh) != 0) {
76 printf(": can't map IO space\n");
77 return;
78 }
79 sc->sc_regs = (struct mongoose_regs *)ioh;
80
81 if (bus_space_map(ga->ga_iot, ga->ga_hpa + MONGOOSE_CTRL,
82 sizeof(struct mongoose_ctrl), 0, &ioh) != 0) {
83 printf(": can't map control registers\n");
84 bus_space_unmap(ga->ga_iot, (bus_space_handle_t)sc->sc_regs,
85 sizeof(struct mongoose_regs));
86 return;
87 }
88 sc->sc_ctrl = (struct mongoose_ctrl *)ioh;
89
90 if (mgattach_common(sc) != 0)
91 return;
92
93 sc->sc_ih = gsc_intr_establish((struct gsc_softc *)parent,
94 ga->ga_irq, IPL_HIGH, mg_intr, sc, sc->sc_dev.dv_xname);
95 }
96