1 /* $NetBSD: pckbc_elb.c,v 1.12 2021/03/05 06:17:02 rin Exp $ */
2
3 /*-
4 * Copyright (c) 2003 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Juergen Hannken-Illjes.
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: pckbc_elb.c,v 1.12 2021/03/05 06:17:02 rin Exp $");
34
35 #include <sys/param.h>
36 #include <sys/conf.h>
37 #include <sys/device.h>
38 #include <sys/systm.h>
39 #include <sys/kmem.h>
40
41 #include <sys/bus.h>
42
43 #include <dev/ic/i8042reg.h>
44 #include <dev/ic/pckbcvar.h>
45
46 #include <evbppc/explora/dev/elbvar.h>
47
48 struct pckbc_elb_softc {
49 struct pckbc_softc sc_pckbc;
50 int sc_irq;
51 };
52
53 static int pckbc_elb_probe(device_t, cfdata_t, void *);
54 static void pckbc_elb_attach(device_t, device_t, void *);
55 static void pckbc_elb_intr_establish(struct pckbc_softc *, pckbc_slot_t);
56
57 CFATTACH_DECL_NEW(pckbc_elb, sizeof(struct pckbc_elb_softc),
58 pckbc_elb_probe, pckbc_elb_attach, NULL, NULL);
59
60 int
pckbc_elb_probe(device_t parent,cfdata_t cf,void * aux)61 pckbc_elb_probe(device_t parent, cfdata_t cf, void *aux)
62 {
63 struct elb_attach_args *oaa = aux;
64
65 if (strcmp(oaa->elb_name, cf->cf_name) != 0)
66 return 0;
67
68 return (1);
69 }
70
71 void
pckbc_elb_attach(device_t parent,device_t self,void * aux)72 pckbc_elb_attach(device_t parent, device_t self, void *aux)
73 {
74 struct pckbc_elb_softc *msc = device_private(self);
75 struct pckbc_softc *sc = &msc->sc_pckbc;
76 struct elb_attach_args *eaa = aux;
77 struct pckbc_internal *t;
78
79 sc->sc_dv = self;
80
81 /*
82 * Setup interrupt data.
83 */
84 msc->sc_irq = eaa->elb_irq;
85 sc->intr_establish = pckbc_elb_intr_establish;
86
87 if (pckbc_is_console(eaa->elb_bt,
88 _BUS_SPACE_UNSTRIDE(eaa->elb_bt, eaa->elb_base))) {
89 t = &pckbc_consdata;
90 pckbc_console_attached = 1;
91 } else {
92 t = kmem_zalloc(sizeof(struct pckbc_internal), KM_SLEEP);
93
94 t->t_iot = eaa->elb_bt;
95 bus_space_map(eaa->elb_bt,
96 _BUS_SPACE_UNSTRIDE(eaa->elb_bt, eaa->elb_base), 1, 0,
97 &t->t_ioh_d);
98 bus_space_map(eaa->elb_bt,
99 _BUS_SPACE_UNSTRIDE(eaa->elb_bt, eaa->elb_base2), 1, 0,
100 &t->t_ioh_c);
101 t->t_addr = eaa->elb_base;
102 }
103
104 t->t_sc = sc;
105 sc->id = t;
106
107 aprint_normal("\n");
108
109 pckbc_attach(sc);
110 }
111
112 static void
pckbc_elb_intr_establish(struct pckbc_softc * sc,pckbc_slot_t slot)113 pckbc_elb_intr_establish(struct pckbc_softc *sc, pckbc_slot_t slot)
114 {
115 struct pckbc_elb_softc *msc = (void *)sc;
116 int irq = msc->sc_irq;
117
118 /*
119 * We ignore slot since all slots use the same interrupt.
120 */
121
122 if (irq >= 0)
123 intr_establish_xname(irq, IST_LEVEL, IPL_TTY, pckbcintr, sc,
124 device_xname(sc->sc_dv));
125
126 msc->sc_irq = -1;
127 }
128