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
pckbc_isa_match(struct device * parent,void * match,void * aux)52 pckbc_isa_match(struct device *parent, void *match, void *aux)
53 {
54 struct isa_attach_args *ia = aux;
55 bus_space_tag_t iot = ia->ia_iot;
56 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 if ((ia->ia_iobase != IOBASEUNK && ia->ia_iobase != IO_KBD) ||
61 ia->ia_maddr != MADDRUNK ||
62 (ia->ia_irq != IRQUNK && ia->ia_irq != 1 /* XXX */) ||
63 ia->ia_drq != DRQUNK)
64 return (0);
65
66 if (pckbc_is_console(iot, IO_KBD) == 0) {
67 if (bus_space_map(iot, IO_KBD + KBDATAP, 1, 0, &ioh_d))
68 return (0);
69 if (bus_space_map(iot, IO_KBD + KBCMDP, 1, 0, &ioh_c))
70 goto fail;
71
72 /* flush KBC */
73 (void) pckbc_poll_data1(iot, ioh_d, ioh_c, PCKBC_KBD_SLOT, 0);
74
75 /* KBC selftest */
76 if (pckbc_send_cmd(iot, ioh_c, KBC_SELFTEST) == 0)
77 goto fail2;
78 res = pckbc_poll_data1(iot, ioh_d, ioh_c, PCKBC_KBD_SLOT, 0);
79 if (res != 0x55) {
80 printf("kbc selftest: %x\n", res);
81 goto fail2;
82 }
83 bus_space_unmap(iot, ioh_c, 1);
84 bus_space_unmap(iot, ioh_d, 1);
85 }
86
87 ia->ia_iobase = IO_KBD;
88 ia->ia_iosize = 5;
89 ia->ia_msize = 0x0;
90 ia->ipa_nirq = PCKBC_NSLOTS;
91 ia->ipa_irq[PCKBC_KBD_SLOT].num = 1;
92 ia->ipa_irq[PCKBC_AUX_SLOT].num = 12;
93
94 return (1);
95
96 fail2:
97 bus_space_unmap(iot, ioh_c, 1);
98 fail:
99 bus_space_unmap(iot, ioh_d, 1);
100 return (0);
101 }
102
103 int
pckbc_isa_activate(struct device * self,int act)104 pckbc_isa_activate(struct device *self, int act)
105 {
106 struct pckbc_softc *sc = (struct pckbc_softc *)self;
107 int rv = 0;
108
109 switch (act) {
110 case DVACT_SUSPEND:
111 rv = config_activate_children(self, act);
112 pckbc_stop(sc);
113 break;
114 case DVACT_RESUME:
115 pckbc_reset(sc);
116 rv = config_activate_children(self, act);
117 break;
118 default:
119 rv = config_activate_children(self, act);
120 break;
121 }
122 return (rv);
123 }
124
125 void
pckbc_isa_attach(struct device * parent,struct device * self,void * aux)126 pckbc_isa_attach(struct device *parent, struct device *self, void *aux)
127 {
128 struct pckbc_softc *sc = (struct pckbc_softc *)self;
129 struct cfdata *cf = self->dv_cfdata;
130 struct isa_attach_args *ia = aux;
131 struct pckbc_internal *t;
132 bus_space_tag_t iot;
133 bus_space_handle_t ioh_d, ioh_c;
134 void *rv;
135 int slot;
136
137 iot = ia->ia_iot;
138
139 printf("\n");
140
141 for (slot = 0; slot < PCKBC_NSLOTS; slot++) {
142 rv = isa_intr_establish(ia->ia_ic, ia->ipa_irq[slot].num,
143 IST_EDGE, IPL_TTY, pckbcintr, sc, sc->sc_dv.dv_xname);
144 if (rv == NULL) {
145 printf("%s: unable to establish interrupt for irq %d\n",
146 sc->sc_dv.dv_xname, ia->ipa_irq[slot].num);
147 /* XXX fail attach? */
148 }
149 }
150
151 if (pckbc_is_console(iot, IO_KBD)) {
152 t = &pckbc_consdata;
153 pckbc_console_attached = 1;
154 /* t->t_cmdbyte was initialized by cnattach */
155 } else {
156 if (bus_space_map(iot, IO_KBD + KBDATAP, 1, 0, &ioh_d) ||
157 bus_space_map(iot, IO_KBD + KBCMDP, 1, 0, &ioh_c))
158 panic("pckbc_attach: couldn't map");
159
160 t = malloc(sizeof(*t), M_DEVBUF, M_WAITOK | M_ZERO);
161 t->t_iot = iot;
162 t->t_ioh_d = ioh_d;
163 t->t_ioh_c = ioh_c;
164 t->t_addr = IO_KBD;
165 t->t_cmdbyte = KC8_CPU; /* Enable ports */
166 }
167
168 t->t_sc = sc;
169 sc->id = t;
170
171 /* Finish off the attach. */
172 pckbc_attach(sc, cf->cf_flags);
173 }
174