atkbd: fix resume from ACPI S3
[dragonfly.git] / sys / dev / misc / atkbd / atkbd_isa.c
CommitLineData
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1/*-
2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer as
10 * the first lines of this file unmodified.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD: src/sys/isa/atkbd_isa.c,v 1.7.2.3 2001/08/01 10:42:28 yokota Exp $
1f7ab7c9 27 * $DragonFly: src/sys/dev/misc/atkbd/atkbd_isa.c,v 1.6 2006/10/25 20:55:54 dillon Exp $
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28 */
29
30#include "opt_kbd.h"
31
32#include <sys/param.h>
33#include <sys/systm.h>
34#include <sys/kernel.h>
35#include <sys/bus.h>
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36#include <sys/rman.h>
37
38#include <sys/kbio.h>
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39#include <dev/misc/kbd/kbdreg.h>
40#include <dev/misc/kbd/atkbdreg.h>
41#include <dev/misc/kbd/atkbdcreg.h>
984263bc 42
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43#include <bus/isa/isareg.h>
44#include <bus/isa/isavar.h>
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45
46typedef struct {
47 struct resource *intr;
48 void *ih;
49} atkbd_softc_t;
50
51devclass_t atkbd_devclass;
52
53static int atkbdprobe(device_t dev);
54static int atkbdattach(device_t dev);
55static int atkbdresume(device_t dev);
56static void atkbd_isa_intr(void *arg);
57
58static device_method_t atkbd_methods[] = {
59 DEVMETHOD(device_probe, atkbdprobe),
60 DEVMETHOD(device_attach, atkbdattach),
61 DEVMETHOD(device_resume, atkbdresume),
62 { 0, 0 }
63};
64
65static driver_t atkbd_driver = {
66 ATKBD_DRIVER_NAME,
67 atkbd_methods,
68 sizeof(atkbd_softc_t),
69};
70
71static int
72atkbdprobe(device_t dev)
73{
74 uintptr_t irq;
75 uintptr_t flags;
76
77 device_set_desc(dev, "AT Keyboard");
78
79 /* obtain parameters */
80 BUS_READ_IVAR(device_get_parent(dev), dev, KBDC_IVAR_IRQ, &irq);
81 BUS_READ_IVAR(device_get_parent(dev), dev, KBDC_IVAR_FLAGS, &flags);
82
83 /* probe the device */
84 return atkbd_probe_unit(device_get_unit(dev),
85 device_get_unit(device_get_parent(dev)),
86 irq, flags);
87}
88
89static int
90atkbdattach(device_t dev)
91{
92 atkbd_softc_t *sc;
93 keyboard_t *kbd;
94 uintptr_t irq;
95 uintptr_t flags;
96 int rid;
97 int error;
98
99 sc = device_get_softc(dev);
100
101 BUS_READ_IVAR(device_get_parent(dev), dev, KBDC_IVAR_IRQ, &irq);
102 BUS_READ_IVAR(device_get_parent(dev), dev, KBDC_IVAR_FLAGS, &flags);
103
104 error = atkbd_attach_unit(device_get_unit(dev), &kbd,
105 device_get_unit(device_get_parent(dev)),
106 irq, flags);
107 if (error)
108 return error;
109
110 /* declare our interrupt handler */
111 rid = 0;
112 sc->intr = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, irq, irq, 1,
113 RF_SHAREABLE | RF_ACTIVE);
ee61f228 114 BUS_SETUP_INTR(device_get_parent(dev), dev, sc->intr, 0,
e9cb6d99 115 atkbd_isa_intr, kbd, &sc->ih, NULL);
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116
117 return 0;
118}
119
120static int
121atkbdresume(device_t dev)
122{
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123 atkbd_softc_t *sc;
124 keyboard_t *kbd;
125 int args[2];
126
127 sc = device_get_softc(dev);
128 kbd = kbd_get_keyboard(kbd_find_keyboard(ATKBD_DRIVER_NAME,
129 device_get_unit(dev)));
130 if (kbd) {
131 kbd->kb_flags &= ~KB_INITIALIZED;
132 args[0] = device_get_unit(device_get_parent(dev));
133 args[1] = rman_get_start(sc->intr);
134 (*kbdsw[kbd->kb_index]->init)(device_get_unit(dev), &kbd,
135 args, device_get_flags(dev));
136 (*kbdsw[kbd->kb_index]->clear_state)(kbd);
137
138 }
139 return 0;
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140}
141
142static void
143atkbd_isa_intr(void *arg)
144{
145 keyboard_t *kbd;
146
147 kbd = (keyboard_t *)arg;
bcc53404 148 kbd_intr(kbd, NULL);
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149}
150
151DRIVER_MODULE(atkbd, atkbdc, atkbd_driver, atkbd_devclass, 0, 0);