1 /* $NetBSD: pckbc_pbus.c,v 1.5 2020/11/21 15:42:20 thorpej Exp $ */
2
3 /*
4 * Copyright 2001 Wasabi Systems, Inc.
5 * All rights reserved.
6 *
7 * Written by Simon Burge and Eduardo Horvath for Wasabi Systems, Inc.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed for the NetBSD Project by
20 * Wasabi Systems, Inc.
21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
22 * or promote products derived from this software without specific prior
23 * written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 */
37
38 #include <sys/cdefs.h>
39 __KERNEL_RCSID(0, "$NetBSD: pckbc_pbus.c,v 1.5 2020/11/21 15:42:20 thorpej Exp $");
40
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/kernel.h>
44 #include <sys/device.h>
45 #include <sys/kmem.h>
46
47 #include <machine/intr.h>
48 #include <machine/walnut.h>
49
50 #include <arch/walnut/dev/pbusvar.h>
51 #include <powerpc/ibm4xx/dev/plbvar.h>
52
53 #include <dev/ic/i8042reg.h>
54 #include <dev/ic/pckbcvar.h>
55
56 struct pckbc_pbus_softc {
57 struct pckbc_softc sc_pckbc;
58
59 // XXX void *sc_ih[PCKBC_NSLOTS];
60 int sc_irq[PCKBC_NSLOTS];
61
62 };
63
64
65 static int pckbc_pbus_probe(device_t, cfdata_t, void *);
66 static void pckbc_pbus_attach(device_t, device_t, void *);
67 static void pckbc_pbus_intr_establish(struct pckbc_softc *, pckbc_slot_t);
68
69 CFATTACH_DECL_NEW(pckbc_pbus, sizeof(struct pckbc_pbus_softc),
70 pckbc_pbus_probe, pckbc_pbus_attach, NULL, NULL);
71
72 int pckbcfound = 0;
73
74 int
pckbc_pbus_probe(device_t parent,cfdata_t cf,void * aux)75 pckbc_pbus_probe(device_t parent, cfdata_t cf, void *aux)
76 {
77 struct pbus_attach_args *paa = aux;
78
79 /* match only pckbc devices */
80 if (strcmp(paa->pb_name, cf->cf_name) != 0)
81 return 0;
82
83 return (pckbcfound < 1);
84 }
85
86 struct pckbc_softc *pckbc0; /* XXX */
87
88 void
pckbc_pbus_attach(device_t parent,device_t self,void * aux)89 pckbc_pbus_attach(device_t parent, device_t self, void *aux)
90 {
91 struct pckbc_pbus_softc *msc = device_private(self);
92 struct pckbc_softc *sc = &msc->sc_pckbc;
93 struct pbus_attach_args *paa = aux;
94 struct pckbc_internal *t;
95 bus_space_handle_t ioh_d, ioh_c;
96 bus_space_tag_t iot = paa->pb_bt;
97 u_long addr = paa->pb_addr;
98
99 sc->sc_dv = self;
100 /*
101 * Set up IRQs
102 */
103 msc->sc_irq[PCKBC_KBD_SLOT] = paa->pb_irq;
104 msc->sc_irq[PCKBC_AUX_SLOT] = paa->pb_irq + 1; /* XXX */
105
106 sc->intr_establish = pckbc_pbus_intr_establish;
107
108 if (pckbc_is_console(iot, addr)) {
109 t = &pckbc_consdata;
110 pckbc_console_attached = 1;
111 /* t->t_cmdbyte was initialized by cnattach */
112 } else {
113 if (bus_space_map(iot, addr + KEY_MOUSE_DATA, 1, 0, &ioh_d) ||
114 bus_space_map(iot, addr + KEY_MOUSE_CMD, 1, 0, &ioh_c))
115 panic("pckbc_attach: couldn't map");
116
117 t = kmem_zalloc(sizeof(struct pckbc_internal), KM_SLEEP);
118 t->t_iot = iot;
119 t->t_ioh_d = ioh_d;
120 t->t_ioh_c = ioh_c;
121 t->t_addr = addr;
122 t->t_cmdbyte = KC8_CPU; /* Enable ports */
123 }
124
125 t->t_sc = sc;
126 sc->id = t;
127
128 aprint_normal("\n");
129
130 /* Finish off the attach. */
131 pckbc_attach(sc);
132
133 pckbcfound++;
134
135 return;
136 }
137
138 static void
pckbc_pbus_intr_establish(struct pckbc_softc * sc,pckbc_slot_t slot)139 pckbc_pbus_intr_establish(struct pckbc_softc *sc, pckbc_slot_t slot)
140 {
141 struct pckbc_pbus_softc *msc = (void *)sc;
142 int irq = msc->sc_irq[slot];
143
144 if (slot > PCKBC_NSLOTS) {
145 aprint_error("pckbc_pbus_intr_establish: attempt to establish "
146 "interrupt at slot %d\n", slot);
147 return;
148 }
149
150 intr_establish(irq, IST_LEVEL, IPL_SERIAL, pckbcintr, sc);
151 aprint_normal_dev(sc->sc_dv, "%s slot interrupting at irq %d\n",
152 pckbc_slot_names[slot], irq);
153 }
154