1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer as
12 * the first lines of this file unmodified.
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 AUTHORS ``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 AUTHORS 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/cdefs.h>
30 #include "opt_kbd.h"
31 #include "opt_evdev.h"
32
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/kernel.h>
36 #include <sys/module.h>
37 #include <sys/bus.h>
38
39 #include <machine/bus.h>
40 #include <machine/resource.h>
41 #include <sys/rman.h>
42
43 #include <sys/kbio.h>
44 #include <dev/kbd/kbdreg.h>
45 #include <dev/atkbdc/atkbdreg.h>
46 #include <dev/atkbdc/atkbdcreg.h>
47
48 typedef struct {
49 struct resource *intr;
50 void *ih;
51 } atkbd_softc_t;
52
53 static void atkbdidentify(driver_t *driver, device_t dev);
54 static int atkbdprobe(device_t dev);
55 static int atkbdattach(device_t dev);
56 static int atkbdresume(device_t dev);
57 static void atkbdintr(void *arg);
58
59 static device_method_t atkbd_methods[] = {
60 DEVMETHOD(device_identify, atkbdidentify),
61 DEVMETHOD(device_probe, atkbdprobe),
62 DEVMETHOD(device_attach, atkbdattach),
63 DEVMETHOD(device_resume, atkbdresume),
64 { 0, 0 }
65 };
66
67 static driver_t atkbd_driver = {
68 ATKBD_DRIVER_NAME,
69 atkbd_methods,
70 sizeof(atkbd_softc_t),
71 };
72
73 static void
atkbdidentify(driver_t * driver,device_t parent)74 atkbdidentify(driver_t *driver, device_t parent)
75 {
76
77 /* always add at least one child */
78 BUS_ADD_CHILD(parent, KBDC_RID_KBD, driver->name, device_get_unit(parent));
79 }
80
81 static int
atkbdprobe(device_t dev)82 atkbdprobe(device_t dev)
83 {
84 struct resource *res;
85 u_long irq;
86 int flags;
87 int rid;
88
89 device_set_desc(dev, "AT Keyboard");
90
91 /* obtain parameters */
92 flags = device_get_flags(dev);
93
94 /* see if IRQ is available */
95 rid = KBDC_RID_KBD;
96 res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
97 if (res == NULL) {
98 if (bootverbose)
99 device_printf(dev, "unable to allocate IRQ\n");
100 return ENXIO;
101 }
102 irq = rman_get_start(res);
103 bus_release_resource(dev, SYS_RES_IRQ, rid, res);
104
105 /* probe the device */
106 return atkbd_probe_unit(dev, irq, flags);
107 }
108
109 static int
atkbdattach(device_t dev)110 atkbdattach(device_t dev)
111 {
112 atkbd_softc_t *sc;
113 keyboard_t *kbd;
114 u_long irq;
115 int flags;
116 int rid;
117 int error;
118
119 sc = device_get_softc(dev);
120
121 rid = KBDC_RID_KBD;
122 irq = bus_get_resource_start(dev, SYS_RES_IRQ, rid);
123 flags = device_get_flags(dev);
124 error = atkbd_attach_unit(dev, &kbd, irq, flags);
125 if (error)
126 return error;
127
128 /* declare our interrupt handler */
129 sc->intr = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
130 if (sc->intr == NULL)
131 return ENXIO;
132 error = bus_setup_intr(dev, sc->intr, INTR_TYPE_TTY, NULL, atkbdintr,
133 kbd, &sc->ih);
134 if (error)
135 bus_release_resource(dev, SYS_RES_IRQ, rid, sc->intr);
136
137 return error;
138 }
139
140 static int
atkbdresume(device_t dev)141 atkbdresume(device_t dev)
142 {
143 atkbd_softc_t *sc;
144 keyboard_t *kbd;
145 int args[2];
146
147 sc = device_get_softc(dev);
148 kbd = kbd_get_keyboard(kbd_find_keyboard(ATKBD_DRIVER_NAME,
149 device_get_unit(dev)));
150 if (kbd) {
151 kbd->kb_flags &= ~KB_INITIALIZED;
152 args[0] = device_get_unit(device_get_parent(dev));
153 args[1] = rman_get_start(sc->intr);
154 kbdd_init(kbd, device_get_unit(dev), &kbd, args,
155 device_get_flags(dev));
156 kbdd_clear_state(kbd);
157 }
158 return 0;
159 }
160
161 static void
atkbdintr(void * arg)162 atkbdintr(void *arg)
163 {
164 keyboard_t *kbd;
165
166 kbd = (keyboard_t *)arg;
167 kbdd_intr(kbd, NULL);
168 }
169
170 DRIVER_MODULE(atkbd, atkbdc, atkbd_driver, 0, 0);
171 #ifdef EVDEV_SUPPORT
172 MODULE_DEPEND(atkbd, evdev, 1, 1, 1);
173 #endif
174