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
48typedef struct {
49	struct resource	*intr;
50	void		*ih;
51} atkbd_softc_t;
52
53static void	atkbdidentify(driver_t *driver, device_t dev);
54static int	atkbdprobe(device_t dev);
55static int	atkbdattach(device_t dev);
56static int	atkbdresume(device_t dev);
57static void	atkbdintr(void *arg);
58
59static 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
67static driver_t atkbd_driver = {
68	ATKBD_DRIVER_NAME,
69	atkbd_methods,
70	sizeof(atkbd_softc_t),
71};
72
73static void
74atkbdidentify(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
81static int
82atkbdprobe(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
109static int
110atkbdattach(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
140static int
141atkbdresume(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
161static void
162atkbdintr(void *arg)
163{
164	keyboard_t *kbd;
165
166	kbd = (keyboard_t *)arg;
167	kbdd_intr(kbd, NULL);
168}
169
170DRIVER_MODULE(atkbd, atkbdc, atkbd_driver, 0, 0);
171#ifdef EVDEV_SUPPORT
172MODULE_DEPEND(atkbd, evdev, 1, 1, 1);
173#endif
174