pckbc_ofisa.c revision 1.12 
1/* $NetBSD: pckbc_ofisa.c,v 1.12 2007/07/09 21:00:52 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 1.12 2007/07/09 21:00:52 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/lock.h>
42
43#include <machine/bus.h>
44
45#include <dev/isa/isareg.h>
46#include <dev/isa/isavar.h>
47
48#include <dev/ofw/openfirm.h>
49#include <dev/ofisa/ofisavar.h>
50
51#include <dev/ic/i8042reg.h>
52#include <dev/ic/pckbcvar.h>
53
54static int pckbc_ofisa_match (struct device *, struct cfdata *, void *);
55static void pckbc_ofisa_attach (struct device *, struct device *, void *);
56
57struct pckbc_ofisa_softc {
58	struct pckbc_softc sc_pckbc;
59
60	isa_chipset_tag_t sc_ic;
61	struct ofisa_intr_desc sc_intr[PCKBC_NSLOTS];
62};
63
64CFATTACH_DECL(pckbc_ofisa, sizeof(struct pckbc_ofisa_softc),
65    pckbc_ofisa_match, pckbc_ofisa_attach, NULL, NULL);
66
67static void pckbc_ofisa_intr_establish (struct pckbc_softc *, pckbc_slot_t);
68
69static const char *const kb_compatible_strings[] = { "pnpPNP,303", NULL };
70static const char *const ms_compatible_strings[] = { "pnpPNP,f03", NULL };
71
72static int
73pckbc_ofisa_match(struct device *parent, struct cfdata *match, void *aux)
74{
75	struct ofisa_attach_args *aa = aux;
76	static const char *const compatible_strings[] = { "INTC,80c42", NULL };
77	int rv = 0;
78
79	if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1)
80		rv = 5;
81
82	return (rv);
83}
84
85static void
86pckbc_ofisa_attach(struct device *parent, struct device *self, void *aux)
87{
88	struct pckbc_ofisa_softc *osc = device_private(self);
89	struct pckbc_softc *sc = &osc->sc_pckbc;
90	struct ofisa_attach_args *aa = aux;
91	struct pckbc_internal *t;
92	bus_space_tag_t iot;
93	bus_space_handle_t ioh_d, ioh_c;
94	struct ofisa_reg_desc regs[2];
95	int phandle;
96	int n;
97
98	osc->sc_ic = aa->ic;
99	iot = aa->iot;
100
101	phandle = OF_child(aa->oba.oba_phandle);
102	while (phandle != 0) {
103		if (of_compatible(phandle, kb_compatible_strings) != -1) {
104			ofisa_intr_get(phandle, &osc->sc_intr[PCKBC_KBD_SLOT], 1);
105		} else if (of_compatible(phandle, ms_compatible_strings) != -1) {
106			ofisa_intr_get(phandle, &osc->sc_intr[PCKBC_AUX_SLOT], 1);
107		}
108		phandle = OF_peer(phandle);
109	}
110
111	sc->intr_establish = pckbc_ofisa_intr_establish;
112
113	if (pckbc_is_console(iot, IO_KBD)) {
114		t = &pckbc_consdata;
115		ioh_d = t->t_ioh_d;
116		ioh_c = t->t_ioh_c;
117		pckbc_console_attached = 1;
118		/* t->t_cmdbyte was initialized by cnattach */
119	} else {
120		n = ofisa_reg_get(aa->oba.oba_phandle, regs, 2);
121		if (n != 2 || regs[0].type != OFISA_REG_TYPE_IO || regs[1].type != OFISA_REG_TYPE_IO
122		    || bus_space_map(iot, regs[0].addr, regs[0].len, 0, &ioh_d)
123		    || bus_space_map(iot, regs[1].addr, regs[1].len, 0, &ioh_c))
124			panic("pckbc_attach: couldn't map");
125
126		t = malloc(sizeof(struct pckbc_internal), M_DEVBUF,
127		    M_WAITOK|M_ZERO);
128		t->t_iot = iot;
129		t->t_ioh_d = ioh_d;
130		t->t_ioh_c = ioh_c;
131		t->t_addr = regs[0].addr;
132		t->t_cmdbyte = KC8_CPU; /* Enable ports */
133		callout_init(&t->t_cleanup, 0);
134	}
135
136	t->t_sc = sc;
137	sc->id = t;
138
139	printf("\n");
140
141	/* Finish off the attach. */
142	pckbc_attach(sc);
143}
144
145static void
146pckbc_ofisa_intr_establish(struct pckbc_softc *sc, pckbc_slot_t slot)
147{
148	struct pckbc_ofisa_softc *osc = (void *) sc;
149	void *rv;
150
151	rv = isa_intr_establish(osc->sc_ic, osc->sc_intr[slot].irq, osc->sc_intr[slot].share,
152	    IPL_TTY, pckbcintr, sc);
153	if (rv == NULL) {
154		printf("%s: unable to establish interrupt for %s slot\n",
155		    sc->sc_dv.dv_xname, pckbc_slot_names[slot]);
156	} else {
157		printf("%s: using irq %d for %s slot\n", sc->sc_dv.dv_xname,
158		    osc->sc_intr[slot].irq, pckbc_slot_names[slot]);
159	}
160}
161