2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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.
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/kernel.h>
38 #include <sys/malloc.h>
39 #include <machine/bus.h>
40 #include <machine/resource.h>
43 #include <dev/kbd/atkbdcreg.h>
45 #include <isa/isareg.h>
46 #include <isa/isavar.h>
48 MALLOC_DEFINE(M_ATKBDDEV, "atkbddev", "AT Keyboard device");
51 typedef struct atkbdc_device {
52 int flags; /* configuration flags */
53 int port; /* port number (same as the controller's) */
54 int irq; /* ISA IRQ mask */
58 devclass_t atkbdc_devclass;
60 static int atkbdc_probe(device_t dev);
61 static int atkbdc_attach(device_t dev);
62 static int atkbdc_print_child(device_t bus, device_t dev);
63 static int atkbdc_read_ivar(device_t bus, device_t dev, int index,
65 static int atkbdc_write_ivar(device_t bus, device_t dev, int index,
68 static device_method_t atkbdc_methods[] = {
69 DEVMETHOD(device_probe, atkbdc_probe),
70 DEVMETHOD(device_attach, atkbdc_attach),
71 DEVMETHOD(device_suspend, bus_generic_suspend),
72 DEVMETHOD(device_resume, bus_generic_resume),
74 DEVMETHOD(bus_print_child, atkbdc_print_child),
75 DEVMETHOD(bus_read_ivar, atkbdc_read_ivar),
76 DEVMETHOD(bus_write_ivar, atkbdc_write_ivar),
77 DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
78 DEVMETHOD(bus_release_resource, bus_generic_release_resource),
79 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
80 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
81 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
82 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
87 static driver_t atkbdc_driver = {
90 sizeof(atkbdc_softc_t *),
94 atkbdc_probe(device_t dev)
98 struct resource *port;
100 /* Check isapnp ids */
101 if (isa_get_vendorid(dev))
104 device_set_desc(dev, "keyboard controller (i8042)");
106 port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
107 0, ~0, IO_KBDSIZE, RF_ACTIVE);
110 error = atkbdc_probe_unit(device_get_unit(dev), rman_get_start(port));
111 bus_release_resource(dev, SYS_RES_IOPORT, rid, port);
116 atkbdc_add_device(device_t dev, const char *name, int unit)
118 atkbdc_softc_t *sc = *(atkbdc_softc_t **)device_get_softc(dev);
119 atkbdc_device_t *kdev;
123 kdev = malloc(sizeof(struct atkbdc_device), M_ATKBDDEV, M_NOWAIT);
126 bzero(kdev, sizeof *kdev);
128 kdev->port = sc->port;
130 if (resource_int_value(name, unit, "irq", &t) == 0)
135 if (resource_int_value(name, unit, "flags", &t) == 0)
140 child = device_add_child(dev, name, unit, kdev);
144 atkbdc_attach(device_t dev)
147 struct resource *port;
153 unit = device_get_unit(dev);
154 sc = *(atkbdc_softc_t **)device_get_softc(dev);
157 * We have to maintain two copies of the kbdc_softc struct,
158 * as the low-level console needs to have access to the
159 * keyboard controller before kbdc is probed and attached.
160 * kbdc_soft[] contains the default entry for that purpose.
163 sc = atkbdc_get_softc(unit);
168 /* XXX should track resource in softc */
170 port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
171 0, ~0, IO_KBDSIZE, RF_ACTIVE);
174 error = atkbdc_attach_unit(unit, sc, rman_get_start(port));
177 *(atkbdc_softc_t **)device_get_softc(dev) = sc;
180 * Add all devices configured to be attached to atkbdc0.
182 for (i = resource_query_string(-1, "at", "atkbdc0");
184 i = resource_query_string(i, "at", "atkbdc0")) {
185 atkbdc_add_device(dev, resource_query_name(i),
186 resource_query_unit(i));
192 for (i = resource_query_string(-1, "at", "atkbdc");
194 i = resource_query_string(i, "at", "atkbdc")) {
195 atkbdc_add_device(dev, resource_query_name(i),
196 resource_query_unit(i));
199 bus_generic_attach(dev);
205 atkbdc_print_child(device_t bus, device_t dev)
207 atkbdc_device_t *kbdcdev;
210 kbdcdev = (atkbdc_device_t *)device_get_ivars(dev);
212 retval += bus_print_child_header(bus, dev);
213 if (kbdcdev->flags != 0)
214 retval += printf(" flags 0x%x", kbdcdev->flags);
215 if (kbdcdev->irq != -1)
216 retval += printf(" irq %d", kbdcdev->irq);
217 retval += bus_print_child_footer(bus, dev);
223 atkbdc_read_ivar(device_t bus, device_t dev, int index, u_long *val)
225 atkbdc_device_t *ivar;
227 ivar = (atkbdc_device_t *)device_get_ivars(dev);
230 *val = (u_long)ivar->port;
233 *val = (u_long)ivar->irq;
235 case KBDC_IVAR_FLAGS:
236 *val = (u_long)ivar->flags;
245 atkbdc_write_ivar(device_t bus, device_t dev, int index, u_long val)
247 atkbdc_device_t *ivar;
249 ivar = (atkbdc_device_t *)device_get_ivars(dev);
252 ivar->port = (int)val;
255 ivar->irq = (int)val;
257 case KBDC_IVAR_FLAGS:
258 ivar->flags = (int)val;
266 DRIVER_MODULE(atkbdc, isa, atkbdc_driver, atkbdc_devclass, 0, 0);
268 #endif /* NATKBDC > 0 */