atkbd/x86_64: Do the same AT controller check on x86_64 as on i386
[dragonfly.git] / sys / dev / misc / atkbdc_layer / atkbdc_isa.c
CommitLineData
984263bc 1/*-
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2 * (MPSAFE)
3 *
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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 * $FreeBSD: src/sys/isa/atkbdc_isa.c,v 1.14.2.1 2000/03/31 12:52:05 yokota Exp $
29 */
30
31#include "opt_kbd.h"
32
33#include <sys/param.h>
34#include <sys/systm.h>
35#include <sys/kernel.h>
36#include <sys/bus.h>
37#include <sys/malloc.h>
984263bc 38#include <sys/rman.h>
22ff886e 39#include <sys/thread.h>
984263bc 40
1f2de5d4 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>
984263bc 45
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46#if 0
47#define lwkt_gettoken(x)
48#define lwkt_reltoken(x)
49#endif
50
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51MALLOC_DEFINE(M_ATKBDDEV, "atkbddev", "AT Keyboard device");
52
53/* children */
54typedef struct atkbdc_device {
55 int flags; /* configuration flags */
56 int irq; /* ISA IRQ mask */
57 u_int32_t vendorid;
58 u_int32_t serial;
59 u_int32_t logicalid;
60 u_int32_t compatid;
61} atkbdc_device_t;
62
63/* kbdc */
64devclass_t atkbdc_devclass;
65
66static int atkbdc_probe(device_t dev);
67static int atkbdc_attach(device_t dev);
68static int atkbdc_print_child(device_t bus, device_t dev);
69static int atkbdc_read_ivar(device_t bus, device_t dev, int index,
70 u_long *val);
71static int atkbdc_write_ivar(device_t bus, device_t dev, int index,
72 u_long val);
73
74static device_method_t atkbdc_methods[] = {
75 DEVMETHOD(device_probe, atkbdc_probe),
76 DEVMETHOD(device_attach, atkbdc_attach),
77 DEVMETHOD(device_suspend, bus_generic_suspend),
78 DEVMETHOD(device_resume, bus_generic_resume),
79
80 DEVMETHOD(bus_print_child, atkbdc_print_child),
81 DEVMETHOD(bus_read_ivar, atkbdc_read_ivar),
82 DEVMETHOD(bus_write_ivar, atkbdc_write_ivar),
83 DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
84 DEVMETHOD(bus_release_resource, bus_generic_release_resource),
85 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
86 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
87 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
88 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
89
90 { 0, 0 }
91};
92
93static driver_t atkbdc_driver = {
94 ATKBDC_DRIVER_NAME,
95 atkbdc_methods,
96 sizeof(atkbdc_softc_t *),
97};
98
99static struct isa_pnp_id atkbdc_ids[] = {
100 { 0x0303d041, "Keyboard controller (i8042)" }, /* PNP0303 */
101 { 0 }
102};
103
104static int
105atkbdc_probe(device_t dev)
106{
107 struct resource *port0;
108 struct resource *port1;
109 int error;
110 int rid;
d435571a 111#if defined(__i386__) || defined(__x86_64__)
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112 bus_space_tag_t tag;
113 bus_space_handle_t ioh1;
114 volatile int i;
115#endif
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116
117 /* check PnP IDs */
118 if (ISA_PNP_PROBE(device_get_parent(dev), dev, atkbdc_ids) == ENXIO)
119 return ENXIO;
120
121 device_set_desc(dev, "Keyboard controller (i8042)");
122
123 rid = 0;
124 port0 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1,
125 RF_ACTIVE);
126 if (port0 == NULL)
127 return ENXIO;
128 /* XXX */
129 if (bus_get_resource_start(dev, SYS_RES_IOPORT, 1) <= 0) {
130 bus_set_resource(dev, SYS_RES_IOPORT, 1,
131 rman_get_start(port0) + KBD_STATUS_PORT, 1);
132 }
133 rid = 1;
134 port1 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1,
135 RF_ACTIVE);
136 if (port1 == NULL) {
137 bus_release_resource(dev, SYS_RES_IOPORT, 0, port0);
138 return ENXIO;
139 }
140
d435571a 141#if defined(__i386__) || defined(__x86_64__)
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142 /*
143 * Check if we really have AT keyboard controller. Poll status
144 * register until we get "all clear" indication. If no such
145 * indication comes, it probably means that there is no AT
146 * keyboard controller present. Give up in such case. Check relies
147 * on the fact that reading from non-existing in/out port returns
148 * 0xff on i386. May or may not be true on other platforms.
149 */
150 tag = rman_get_bustag(port0);
151 ioh1 = rman_get_bushandle(port1);
152 for (i = 65536; i != 0; --i) {
153 if ((bus_space_read_1(tag, ioh1, 0) & 0x2) == 0)
154 break;
a200774b 155 DELAY(16);
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156 }
157 if (i == 0) {
158 bus_release_resource(dev, SYS_RES_IOPORT, 0, port0);
159 bus_release_resource(dev, SYS_RES_IOPORT, 1, port1);
160 return ENXIO;
161 }
162#endif
163
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164 error = atkbdc_probe_unit(device_get_unit(dev), port0, port1);
165
166 bus_release_resource(dev, SYS_RES_IOPORT, 0, port0);
167 bus_release_resource(dev, SYS_RES_IOPORT, 1, port1);
168
169 return error;
170}
171
172static void
173atkbdc_add_device(device_t dev, const char *name, int unit)
174{
175 atkbdc_device_t *kdev;
176 device_t child;
177 int t;
178
179 if (resource_int_value(name, unit, "disabled", &t) == 0 && t != 0)
180 return;
181
efda3bd0 182 kdev = kmalloc(sizeof(struct atkbdc_device), M_ATKBDDEV,
bf22d4c1 183 M_WAITOK | M_ZERO);
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184
185 if (resource_int_value(name, unit, "irq", &t) == 0)
186 kdev->irq = t;
187 else
188 kdev->irq = -1;
189
190 if (resource_int_value(name, unit, "flags", &t) == 0)
191 kdev->flags = t;
192 else
193 kdev->flags = 0;
194
195 child = device_add_child(dev, name, unit);
196 device_set_ivars(child, kdev);
197}
198
199static int
200atkbdc_attach(device_t dev)
201{
202 atkbdc_softc_t *sc;
203 int unit;
204 int error;
205 int rid;
206 int i;
207
22ff886e 208 lwkt_gettoken(&tty_token);
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209 unit = device_get_unit(dev);
210 sc = *(atkbdc_softc_t **)device_get_softc(dev);
211 if (sc == NULL) {
212 /*
213 * We have to maintain two copies of the kbdc_softc struct,
214 * as the low-level console needs to have access to the
215 * keyboard controller before kbdc is probed and attached.
216 * kbdc_soft[] contains the default entry for that purpose.
217 * See atkbdc.c. XXX
218 */
219 sc = atkbdc_get_softc(unit);
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220 if (sc == NULL) {
221 lwkt_reltoken(&tty_token);
984263bc 222 return ENOMEM;
22ff886e 223 }
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224 }
225
226 rid = 0;
227 sc->port0 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1,
228 RF_ACTIVE);
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229 if (sc->port0 == NULL) {
230 lwkt_reltoken(&tty_token);
984263bc 231 return ENXIO;
22ff886e 232 }
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233 rid = 1;
234 sc->port1 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1,
235 RF_ACTIVE);
236 if (sc->port1 == NULL) {
237 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port0);
22ff886e 238 lwkt_reltoken(&tty_token);
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239 return ENXIO;
240 }
241
242 error = atkbdc_attach_unit(unit, sc, sc->port0, sc->port1);
243 if (error) {
244 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port0);
245 bus_release_resource(dev, SYS_RES_IOPORT, 1, sc->port1);
22ff886e 246 lwkt_reltoken(&tty_token);
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247 return error;
248 }
249 *(atkbdc_softc_t **)device_get_softc(dev) = sc;
250
251 /*
252 * Add all devices configured to be attached to atkbdc0.
253 */
254 for (i = resource_query_string(-1, "at", device_get_nameunit(dev));
255 i != -1;
256 i = resource_query_string(i, "at", device_get_nameunit(dev))) {
257 atkbdc_add_device(dev, resource_query_name(i),
258 resource_query_unit(i));
259 }
260
261 /*
262 * and atkbdc?
263 */
264 for (i = resource_query_string(-1, "at", device_get_name(dev));
265 i != -1;
266 i = resource_query_string(i, "at", device_get_name(dev))) {
267 atkbdc_add_device(dev, resource_query_name(i),
268 resource_query_unit(i));
269 }
270
271 bus_generic_attach(dev);
272
22ff886e 273 lwkt_reltoken(&tty_token);
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274 return 0;
275}
276
277static int
278atkbdc_print_child(device_t bus, device_t dev)
279{
280 atkbdc_device_t *kbdcdev;
281 int retval = 0;
282
283 kbdcdev = (atkbdc_device_t *)device_get_ivars(dev);
284
285 retval += bus_print_child_header(bus, dev);
286 if (kbdcdev->flags != 0)
e3869ec7 287 retval += kprintf(" flags 0x%x", kbdcdev->flags);
984263bc 288 if (kbdcdev->irq != -1)
e3869ec7 289 retval += kprintf(" irq %d", kbdcdev->irq);
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290 retval += bus_print_child_footer(bus, dev);
291
292 return (retval);
293}
294
295static int
296atkbdc_read_ivar(device_t bus, device_t dev, int index, u_long *val)
297{
298 atkbdc_device_t *ivar;
299
22ff886e 300 lwkt_gettoken(&tty_token);
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301 ivar = (atkbdc_device_t *)device_get_ivars(dev);
302 switch (index) {
303 case KBDC_IVAR_IRQ:
304 *val = (u_long)ivar->irq;
305 break;
306 case KBDC_IVAR_FLAGS:
307 *val = (u_long)ivar->flags;
308 break;
309 case KBDC_IVAR_VENDORID:
310 *val = (u_long)ivar->vendorid;
311 break;
312 case KBDC_IVAR_SERIAL:
313 *val = (u_long)ivar->serial;
314 break;
315 case KBDC_IVAR_LOGICALID:
316 *val = (u_long)ivar->logicalid;
317 break;
318 case KBDC_IVAR_COMPATID:
319 *val = (u_long)ivar->compatid;
320 break;
321 default:
22ff886e 322 lwkt_reltoken(&tty_token);
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323 return ENOENT;
324 }
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325
326 lwkt_reltoken(&tty_token);
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327 return 0;
328}
329
330static int
331atkbdc_write_ivar(device_t bus, device_t dev, int index, u_long val)
332{
333 atkbdc_device_t *ivar;
334
22ff886e 335 lwkt_gettoken(&tty_token);
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336 ivar = (atkbdc_device_t *)device_get_ivars(dev);
337 switch (index) {
338 case KBDC_IVAR_IRQ:
339 ivar->irq = (int)val;
340 break;
341 case KBDC_IVAR_FLAGS:
342 ivar->flags = (int)val;
343 break;
344 case KBDC_IVAR_VENDORID:
345 ivar->vendorid = (u_int32_t)val;
346 break;
347 case KBDC_IVAR_SERIAL:
348 ivar->serial = (u_int32_t)val;
349 break;
350 case KBDC_IVAR_LOGICALID:
351 ivar->logicalid = (u_int32_t)val;
352 break;
353 case KBDC_IVAR_COMPATID:
354 ivar->compatid = (u_int32_t)val;
355 break;
356 default:
22ff886e 357 lwkt_reltoken(&tty_token);
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358 return ENOENT;
359 }
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360
361 lwkt_reltoken(&tty_token);
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362 return 0;
363}
364
aa2b9d05
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365DRIVER_MODULE(atkbdc, isa, atkbdc_driver, atkbdc_devclass, NULL, NULL);
366DRIVER_MODULE(atkbdc, acpi, atkbdc_driver, atkbdc_devclass, NULL, NULL);