1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
/*-
* Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer as
* the first lines of this file unmodified.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_kbd.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <sys/kbio.h>
#include <dev/kbd/kbdreg.h>
#include <dev/kbd/atkbdreg.h>
#include <dev/kbd/atkbdcreg.h>
#include <isa/isareg.h>
#include <isa/isavar.h>
typedef struct {
struct resource *intr;
void *ih;
} atkbd_softc_t;
static devclass_t atkbd_devclass;
static void atkbdidentify(driver_t *driver, device_t dev);
static int atkbdprobe(device_t dev);
static int atkbdattach(device_t dev);
static int atkbdresume(device_t dev);
static void atkbd_isa_intr(void *arg);
static device_method_t atkbd_methods[] = {
DEVMETHOD(device_identify, atkbdidentify),
DEVMETHOD(device_probe, atkbdprobe),
DEVMETHOD(device_attach, atkbdattach),
DEVMETHOD(device_resume, atkbdresume),
{ 0, 0 }
};
static driver_t atkbd_driver = {
ATKBD_DRIVER_NAME,
atkbd_methods,
sizeof(atkbd_softc_t),
};
static void
atkbdidentify(driver_t *driver, device_t parent)
{
/* always add at least one child */
BUS_ADD_CHILD(parent, KBDC_RID_KBD, driver->name, device_get_unit(parent));
}
static int
atkbdprobe(device_t dev)
{
struct resource *res;
u_long irq;
int flags;
int rid;
device_set_desc(dev, "AT Keyboard");
/* obtain parameters */
flags = device_get_flags(dev);
/* see if IRQ is available */
rid = KBDC_RID_KBD;
res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
RF_SHAREABLE | RF_ACTIVE);
if (res == NULL) {
if (bootverbose)
device_printf(dev, "unable to allocate IRQ\n");
return ENXIO;
}
irq = rman_get_start(res);
bus_release_resource(dev, SYS_RES_IRQ, rid, res);
/* probe the device */
return atkbd_probe_unit(device_get_unit(dev),
device_get_unit(device_get_parent(dev)),
irq, flags);
}
static int
atkbdattach(device_t dev)
{
atkbd_softc_t *sc;
keyboard_t *kbd;
u_long irq;
int flags;
int rid;
int error;
sc = device_get_softc(dev);
rid = KBDC_RID_KBD;
irq = bus_get_resource_start(dev, SYS_RES_IRQ, rid);
flags = device_get_flags(dev);
error = atkbd_attach_unit(device_get_unit(dev), &kbd,
device_get_unit(device_get_parent(dev)),
irq, flags);
if (error)
return error;
/* declare our interrupt handler */
sc->intr = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
RF_SHAREABLE | RF_ACTIVE);
if (sc->intr == NULL)
return ENXIO;
error = bus_setup_intr(dev, sc->intr, INTR_TYPE_TTY, atkbd_isa_intr,
kbd, &sc->ih);
if (error)
bus_release_resource(dev, SYS_RES_IRQ, rid, sc->intr);
return error;
}
static int
atkbdresume(device_t dev)
{
atkbd_softc_t *sc;
keyboard_t *kbd;
int args[2];
sc = device_get_softc(dev);
kbd = kbd_get_keyboard(kbd_find_keyboard(ATKBD_DRIVER_NAME,
device_get_unit(dev)));
if (kbd) {
kbd->kb_flags &= ~KB_INITIALIZED;
args[0] = device_get_unit(device_get_parent(dev));
args[1] = rman_get_start(sc->intr);
(*kbdsw[kbd->kb_index]->init)(device_get_unit(dev), &kbd,
args, device_get_flags(dev));
(*kbdsw[kbd->kb_index]->clear_state)(kbd);
}
return 0;
}
static void
atkbd_isa_intr(void *arg)
{
keyboard_t *kbd;
kbd = (keyboard_t *)arg;
(*kbdsw[kbd->kb_index]->intr)(kbd, NULL);
}
DRIVER_MODULE(atkbd, atkbdc, atkbd_driver, atkbd_devclass, 0, 0);
|
