Line data Source code
1 : /* $OpenBSD: pckbc_isa.c,v 1.19 2015/08/18 06:54:00 stsp Exp $ */
2 : /* $NetBSD: pckbc_isa.c,v 1.2 2000/03/23 07:01:35 thorpej Exp $ */
3 :
4 : /*
5 : * Copyright (c) 1998
6 : * Matthias Drochner. All rights reserved.
7 : *
8 : * Redistribution and use in source and binary forms, with or without
9 : * modification, are permitted provided that the following conditions
10 : * are met:
11 : * 1. Redistributions of source code must retain the above copyright
12 : * notice, this list of conditions and the following disclaimer.
13 : * 2. Redistributions in binary form must reproduce the above copyright
14 : * notice, this list of conditions and the following disclaimer in the
15 : * documentation and/or other materials provided with the distribution.
16 : *
17 : * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 : * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 : * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 : * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 : * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 : * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 : * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 : * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 : * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 : * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 : */
28 :
29 : #include <sys/param.h>
30 : #include <sys/systm.h>
31 : #include <sys/device.h>
32 : #include <sys/malloc.h>
33 :
34 : #include <machine/bus.h>
35 :
36 : #include <dev/isa/isareg.h>
37 : #include <dev/isa/isavar.h>
38 :
39 : #include <dev/ic/i8042reg.h>
40 : #include <dev/ic/pckbcvar.h>
41 :
42 : int pckbc_isa_match(struct device *, void *, void *);
43 : void pckbc_isa_attach(struct device *, struct device *, void *);
44 : int pckbc_isa_activate(struct device *, int);
45 :
46 : const struct cfattach pckbc_isa_ca = {
47 : sizeof(struct pckbc_softc), pckbc_isa_match, pckbc_isa_attach,
48 : NULL, pckbc_isa_activate
49 : };
50 :
51 : int
52 0 : pckbc_isa_match(struct device *parent, void *match, void *aux)
53 : {
54 0 : struct isa_attach_args *ia = aux;
55 0 : bus_space_tag_t iot = ia->ia_iot;
56 0 : bus_space_handle_t ioh_d, ioh_c;
57 : int res;
58 :
59 : /* If values are hardwired to something that they can't be, punt. */
60 0 : if ((ia->ia_iobase != IOBASEUNK && ia->ia_iobase != IO_KBD) ||
61 0 : ia->ia_maddr != MADDRUNK ||
62 0 : (ia->ia_irq != IRQUNK && ia->ia_irq != 1 /* XXX */) ||
63 0 : ia->ia_drq != DRQUNK)
64 0 : return (0);
65 :
66 0 : if (pckbc_is_console(iot, IO_KBD) == 0) {
67 0 : if (bus_space_map(iot, IO_KBD + KBDATAP, 1, 0, &ioh_d))
68 0 : return (0);
69 0 : if (bus_space_map(iot, IO_KBD + KBCMDP, 1, 0, &ioh_c))
70 : goto fail;
71 :
72 : /* flush KBC */
73 0 : (void) pckbc_poll_data1(iot, ioh_d, ioh_c, PCKBC_KBD_SLOT, 0);
74 :
75 : /* KBC selftest */
76 0 : if (pckbc_send_cmd(iot, ioh_c, KBC_SELFTEST) == 0)
77 : goto fail2;
78 0 : res = pckbc_poll_data1(iot, ioh_d, ioh_c, PCKBC_KBD_SLOT, 0);
79 0 : if (res != 0x55) {
80 0 : printf("kbc selftest: %x\n", res);
81 0 : goto fail2;
82 : }
83 0 : bus_space_unmap(iot, ioh_c, 1);
84 0 : bus_space_unmap(iot, ioh_d, 1);
85 0 : }
86 :
87 0 : ia->ia_iobase = IO_KBD;
88 0 : ia->ia_iosize = 5;
89 0 : ia->ia_msize = 0x0;
90 0 : ia->ipa_nirq = PCKBC_NSLOTS;
91 0 : ia->ipa_irq[PCKBC_KBD_SLOT].num = 1;
92 0 : ia->ipa_irq[PCKBC_AUX_SLOT].num = 12;
93 :
94 0 : return (1);
95 :
96 : fail2:
97 0 : bus_space_unmap(iot, ioh_c, 1);
98 : fail:
99 0 : bus_space_unmap(iot, ioh_d, 1);
100 0 : return (0);
101 0 : }
102 :
103 : int
104 0 : pckbc_isa_activate(struct device *self, int act)
105 : {
106 0 : struct pckbc_softc *sc = (struct pckbc_softc *)self;
107 : int rv = 0;
108 :
109 0 : switch (act) {
110 : case DVACT_SUSPEND:
111 0 : rv = config_activate_children(self, act);
112 0 : pckbc_stop(sc);
113 0 : break;
114 : case DVACT_RESUME:
115 0 : pckbc_reset(sc);
116 0 : rv = config_activate_children(self, act);
117 0 : break;
118 : default:
119 0 : rv = config_activate_children(self, act);
120 0 : break;
121 : }
122 0 : return (rv);
123 : }
124 :
125 : void
126 0 : pckbc_isa_attach(struct device *parent, struct device *self, void *aux)
127 : {
128 0 : struct pckbc_softc *sc = (struct pckbc_softc *)self;
129 0 : struct cfdata *cf = self->dv_cfdata;
130 0 : struct isa_attach_args *ia = aux;
131 : struct pckbc_internal *t;
132 : bus_space_tag_t iot;
133 0 : bus_space_handle_t ioh_d, ioh_c;
134 : void *rv;
135 : int slot;
136 :
137 0 : iot = ia->ia_iot;
138 :
139 0 : printf("\n");
140 :
141 0 : for (slot = 0; slot < PCKBC_NSLOTS; slot++) {
142 0 : rv = isa_intr_establish(ia->ia_ic, ia->ipa_irq[slot].num,
143 0 : IST_EDGE, IPL_TTY, pckbcintr, sc, sc->sc_dv.dv_xname);
144 0 : if (rv == NULL) {
145 0 : printf("%s: unable to establish interrupt for irq %d\n",
146 0 : sc->sc_dv.dv_xname, ia->ipa_irq[slot].num);
147 : /* XXX fail attach? */
148 0 : }
149 : }
150 :
151 0 : if (pckbc_is_console(iot, IO_KBD)) {
152 : t = &pckbc_consdata;
153 0 : pckbc_console_attached = 1;
154 : /* t->t_cmdbyte was initialized by cnattach */
155 0 : } else {
156 0 : if (bus_space_map(iot, IO_KBD + KBDATAP, 1, 0, &ioh_d) ||
157 0 : bus_space_map(iot, IO_KBD + KBCMDP, 1, 0, &ioh_c))
158 0 : panic("pckbc_attach: couldn't map");
159 :
160 0 : t = malloc(sizeof(*t), M_DEVBUF, M_WAITOK | M_ZERO);
161 0 : t->t_iot = iot;
162 0 : t->t_ioh_d = ioh_d;
163 0 : t->t_ioh_c = ioh_c;
164 0 : t->t_addr = IO_KBD;
165 0 : t->t_cmdbyte = KC8_CPU; /* Enable ports */
166 : }
167 :
168 0 : t->t_sc = sc;
169 0 : sc->id = t;
170 :
171 : /* Finish off the attach. */
172 0 : pckbc_attach(sc, cf->cf_flags);
173 0 : }
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