pckbc_ofisa.c revision 1.14 
1/* $NetBSD: pckbc_ofisa.c,v 1.14 2008/01/04 21:17:59 ad Exp $ */
2
3/*
4 * Copyright (c) 1998
5 *	Matthias Drochner.  All rights reserved.
6 * Copyright (c) 2001
7 *	Matt Thomas.  All rights reserved.
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 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#include <sys/cdefs.h>
31__KERNEL_RCSID(0, "$NetBSD: pckbc_ofisa.c,v 1.14 2008/01/04 21:17:59 ad Exp $");
32
33#include <sys/param.h>
34#include <sys/systm.h>
35#include <sys/kernel.h>
36#include <sys/proc.h>
37#include <sys/device.h>
38#include <sys/malloc.h>
39#include <sys/errno.h>
40#include <sys/queue.h>
41#include <sys/bus.h>
42
43#include <dev/isa/isareg.h>
44#include <dev/isa/isavar.h>
45
46#include <dev/ofw/openfirm.h>
47#include <dev/ofisa/ofisavar.h>
48
49#include <dev/ic/i8042reg.h>
50#include <dev/ic/pckbcvar.h>
51
52static int pckbc_ofisa_match (struct device *, struct cfdata *, void *);
53static void pckbc_ofisa_attach (struct device *, struct device *, void *);
54
55struct pckbc_ofisa_softc {
56	struct pckbc_softc sc_pckbc;
57
58	isa_chipset_tag_t sc_ic;
59	struct ofisa_intr_desc sc_intr[PCKBC_NSLOTS];
60};
61
62CFATTACH_DECL(pckbc_ofisa, sizeof(struct pckbc_ofisa_softc),
63    pckbc_ofisa_match, pckbc_ofisa_attach, NULL, NULL);
64
65static void pckbc_ofisa_intr_establish (struct pckbc_softc *, pckbc_slot_t);
66
67static const char *const kb_compatible_strings[] = { "pnpPNP,303", NULL };
68static const char *const ms_compatible_strings[] = { "pnpPNP,f03", NULL };
69
70static int
71pckbc_ofisa_match(struct device *parent, struct cfdata *match, void *aux)
72{
73	struct ofisa_attach_args *aa = aux;
74	static const char *const compatible_strings[] = { "INTC,80c42", NULL };
75	int rv = 0;
76
77	if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1)
78		rv = 5;
79
80	return (rv);
81}
82
83static void
84pckbc_ofisa_attach(struct device *parent, struct device *self, void *aux)
85{
86	struct pckbc_ofisa_softc *osc = device_private(self);
87	struct pckbc_softc *sc = &osc->sc_pckbc;
88	struct ofisa_attach_args *aa = aux;
89	struct pckbc_internal *t;
90	bus_space_tag_t iot;
91	bus_space_handle_t ioh_d, ioh_c;
92	struct ofisa_reg_desc regs[2];
93	int phandle;
94	int n;
95
96	osc->sc_ic = aa->ic;
97	iot = aa->iot;
98
99	phandle = OF_child(aa->oba.oba_phandle);
100	while (phandle != 0) {
101		if (of_compatible(phandle, kb_compatible_strings) != -1) {
102			ofisa_intr_get(phandle, &osc->sc_intr[PCKBC_KBD_SLOT], 1);
103		} else if (of_compatible(phandle, ms_compatible_strings) != -1) {
104			ofisa_intr_get(phandle, &osc->sc_intr[PCKBC_AUX_SLOT], 1);
105		}
106		phandle = OF_peer(phandle);
107	}
108
109	sc->intr_establish = pckbc_ofisa_intr_establish;
110
111	if (pckbc_is_console(iot, IO_KBD)) {
112		t = &pckbc_consdata;
113		ioh_d = t->t_ioh_d;
114		ioh_c = t->t_ioh_c;
115		pckbc_console_attached = 1;
116		/* t->t_cmdbyte was initialized by cnattach */
117	} else {
118		n = ofisa_reg_get(aa->oba.oba_phandle, regs, 2);
119		if (n != 2 || regs[0].type != OFISA_REG_TYPE_IO || regs[1].type != OFISA_REG_TYPE_IO
120		    || bus_space_map(iot, regs[0].addr, regs[0].len, 0, &ioh_d)
121		    || bus_space_map(iot, regs[1].addr, regs[1].len, 0, &ioh_c))
122			panic("pckbc_attach: couldn't map");
123
124		t = malloc(sizeof(struct pckbc_internal), M_DEVBUF,
125		    M_WAITOK|M_ZERO);
126		t->t_iot = iot;
127		t->t_ioh_d = ioh_d;
128		t->t_ioh_c = ioh_c;
129		t->t_addr = regs[0].addr;
130		t->t_cmdbyte = KC8_CPU; /* Enable ports */
131		callout_init(&t->t_cleanup, 0);
132	}
133
134	t->t_sc = sc;
135	sc->id = t;
136
137	printf("\n");
138
139	/* Finish off the attach. */
140	pckbc_attach(sc);
141}
142
143static void
144pckbc_ofisa_intr_establish(struct pckbc_softc *sc, pckbc_slot_t slot)
145{
146	struct pckbc_ofisa_softc *osc = (void *) sc;
147	void *rv;
148
149	rv = isa_intr_establish(osc->sc_ic, osc->sc_intr[slot].irq, osc->sc_intr[slot].share,
150	    IPL_TTY, pckbcintr, sc);
151	if (rv == NULL) {
152		printf("%s: unable to establish interrupt for %s slot\n",
153		    sc->sc_dv.dv_xname, pckbc_slot_names[slot]);
154	} else {
155		printf("%s: using irq %d for %s slot\n", sc->sc_dv.dv_xname,
156		    osc->sc_intr[slot].irq, pckbc_slot_names[slot]);
157	}
158}
159