Do a major clean-up of the BUSDMA architecture. A large number of
[dragonfly.git] / sys / dev / misc / atkbdc_layer / atkbdc_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/atkbdc_isa.c,v 1.14.2.1 2000/03/31 12:52:05 yokota Exp $
1f7ab7c9 27 * $DragonFly: src/sys/dev/misc/atkbdc_layer/atkbdc_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>
36#include <sys/malloc.h>
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37#include <sys/rman.h>
38
1f2de5d4 39#include <dev/misc/kbd/atkbdcreg.h>
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41#include <bus/isa/isareg.h>
42#include <bus/isa/isavar.h>
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43
44MALLOC_DEFINE(M_ATKBDDEV, "atkbddev", "AT Keyboard device");
45
46/* children */
47typedef struct atkbdc_device {
48 int flags; /* configuration flags */
49 int irq; /* ISA IRQ mask */
50 u_int32_t vendorid;
51 u_int32_t serial;
52 u_int32_t logicalid;
53 u_int32_t compatid;
54} atkbdc_device_t;
55
56/* kbdc */
57devclass_t atkbdc_devclass;
58
59static int atkbdc_probe(device_t dev);
60static int atkbdc_attach(device_t dev);
61static int atkbdc_print_child(device_t bus, device_t dev);
62static int atkbdc_read_ivar(device_t bus, device_t dev, int index,
63 u_long *val);
64static int atkbdc_write_ivar(device_t bus, device_t dev, int index,
65 u_long val);
66
67static device_method_t atkbdc_methods[] = {
68 DEVMETHOD(device_probe, atkbdc_probe),
69 DEVMETHOD(device_attach, atkbdc_attach),
70 DEVMETHOD(device_suspend, bus_generic_suspend),
71 DEVMETHOD(device_resume, bus_generic_resume),
72
73 DEVMETHOD(bus_print_child, atkbdc_print_child),
74 DEVMETHOD(bus_read_ivar, atkbdc_read_ivar),
75 DEVMETHOD(bus_write_ivar, atkbdc_write_ivar),
76 DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
77 DEVMETHOD(bus_release_resource, bus_generic_release_resource),
78 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
79 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
80 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
81 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
82
83 { 0, 0 }
84};
85
86static driver_t atkbdc_driver = {
87 ATKBDC_DRIVER_NAME,
88 atkbdc_methods,
89 sizeof(atkbdc_softc_t *),
90};
91
92static struct isa_pnp_id atkbdc_ids[] = {
93 { 0x0303d041, "Keyboard controller (i8042)" }, /* PNP0303 */
94 { 0 }
95};
96
97static int
98atkbdc_probe(device_t dev)
99{
100 struct resource *port0;
101 struct resource *port1;
102 int error;
103 int rid;
104
105 /* check PnP IDs */
106 if (ISA_PNP_PROBE(device_get_parent(dev), dev, atkbdc_ids) == ENXIO)
107 return ENXIO;
108
109 device_set_desc(dev, "Keyboard controller (i8042)");
110
111 rid = 0;
112 port0 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1,
113 RF_ACTIVE);
114 if (port0 == NULL)
115 return ENXIO;
116 /* XXX */
117 if (bus_get_resource_start(dev, SYS_RES_IOPORT, 1) <= 0) {
118 bus_set_resource(dev, SYS_RES_IOPORT, 1,
119 rman_get_start(port0) + KBD_STATUS_PORT, 1);
120 }
121 rid = 1;
122 port1 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1,
123 RF_ACTIVE);
124 if (port1 == NULL) {
125 bus_release_resource(dev, SYS_RES_IOPORT, 0, port0);
126 return ENXIO;
127 }
128
129 error = atkbdc_probe_unit(device_get_unit(dev), port0, port1);
130
131 bus_release_resource(dev, SYS_RES_IOPORT, 0, port0);
132 bus_release_resource(dev, SYS_RES_IOPORT, 1, port1);
133
134 return error;
135}
136
137static void
138atkbdc_add_device(device_t dev, const char *name, int unit)
139{
140 atkbdc_device_t *kdev;
141 device_t child;
142 int t;
143
144 if (resource_int_value(name, unit, "disabled", &t) == 0 && t != 0)
145 return;
146
efda3bd0 147 kdev = kmalloc(sizeof(struct atkbdc_device), M_ATKBDDEV,
bf22d4c1 148 M_WAITOK | M_ZERO);
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149
150 if (resource_int_value(name, unit, "irq", &t) == 0)
151 kdev->irq = t;
152 else
153 kdev->irq = -1;
154
155 if (resource_int_value(name, unit, "flags", &t) == 0)
156 kdev->flags = t;
157 else
158 kdev->flags = 0;
159
160 child = device_add_child(dev, name, unit);
161 device_set_ivars(child, kdev);
162}
163
164static int
165atkbdc_attach(device_t dev)
166{
167 atkbdc_softc_t *sc;
168 int unit;
169 int error;
170 int rid;
171 int i;
172
173 unit = device_get_unit(dev);
174 sc = *(atkbdc_softc_t **)device_get_softc(dev);
175 if (sc == NULL) {
176 /*
177 * We have to maintain two copies of the kbdc_softc struct,
178 * as the low-level console needs to have access to the
179 * keyboard controller before kbdc is probed and attached.
180 * kbdc_soft[] contains the default entry for that purpose.
181 * See atkbdc.c. XXX
182 */
183 sc = atkbdc_get_softc(unit);
184 if (sc == NULL)
185 return ENOMEM;
186 }
187
188 rid = 0;
189 sc->port0 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1,
190 RF_ACTIVE);
191 if (sc->port0 == NULL)
192 return ENXIO;
193 rid = 1;
194 sc->port1 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1,
195 RF_ACTIVE);
196 if (sc->port1 == NULL) {
197 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port0);
198 return ENXIO;
199 }
200
201 error = atkbdc_attach_unit(unit, sc, sc->port0, sc->port1);
202 if (error) {
203 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port0);
204 bus_release_resource(dev, SYS_RES_IOPORT, 1, sc->port1);
205 return error;
206 }
207 *(atkbdc_softc_t **)device_get_softc(dev) = sc;
208
209 /*
210 * Add all devices configured to be attached to atkbdc0.
211 */
212 for (i = resource_query_string(-1, "at", device_get_nameunit(dev));
213 i != -1;
214 i = resource_query_string(i, "at", device_get_nameunit(dev))) {
215 atkbdc_add_device(dev, resource_query_name(i),
216 resource_query_unit(i));
217 }
218
219 /*
220 * and atkbdc?
221 */
222 for (i = resource_query_string(-1, "at", device_get_name(dev));
223 i != -1;
224 i = resource_query_string(i, "at", device_get_name(dev))) {
225 atkbdc_add_device(dev, resource_query_name(i),
226 resource_query_unit(i));
227 }
228
229 bus_generic_attach(dev);
230
231 return 0;
232}
233
234static int
235atkbdc_print_child(device_t bus, device_t dev)
236{
237 atkbdc_device_t *kbdcdev;
238 int retval = 0;
239
240 kbdcdev = (atkbdc_device_t *)device_get_ivars(dev);
241
242 retval += bus_print_child_header(bus, dev);
243 if (kbdcdev->flags != 0)
244 retval += printf(" flags 0x%x", kbdcdev->flags);
245 if (kbdcdev->irq != -1)
246 retval += printf(" irq %d", kbdcdev->irq);
247 retval += bus_print_child_footer(bus, dev);
248
249 return (retval);
250}
251
252static int
253atkbdc_read_ivar(device_t bus, device_t dev, int index, u_long *val)
254{
255 atkbdc_device_t *ivar;
256
257 ivar = (atkbdc_device_t *)device_get_ivars(dev);
258 switch (index) {
259 case KBDC_IVAR_IRQ:
260 *val = (u_long)ivar->irq;
261 break;
262 case KBDC_IVAR_FLAGS:
263 *val = (u_long)ivar->flags;
264 break;
265 case KBDC_IVAR_VENDORID:
266 *val = (u_long)ivar->vendorid;
267 break;
268 case KBDC_IVAR_SERIAL:
269 *val = (u_long)ivar->serial;
270 break;
271 case KBDC_IVAR_LOGICALID:
272 *val = (u_long)ivar->logicalid;
273 break;
274 case KBDC_IVAR_COMPATID:
275 *val = (u_long)ivar->compatid;
276 break;
277 default:
278 return ENOENT;
279 }
280 return 0;
281}
282
283static int
284atkbdc_write_ivar(device_t bus, device_t dev, int index, u_long val)
285{
286 atkbdc_device_t *ivar;
287
288 ivar = (atkbdc_device_t *)device_get_ivars(dev);
289 switch (index) {
290 case KBDC_IVAR_IRQ:
291 ivar->irq = (int)val;
292 break;
293 case KBDC_IVAR_FLAGS:
294 ivar->flags = (int)val;
295 break;
296 case KBDC_IVAR_VENDORID:
297 ivar->vendorid = (u_int32_t)val;
298 break;
299 case KBDC_IVAR_SERIAL:
300 ivar->serial = (u_int32_t)val;
301 break;
302 case KBDC_IVAR_LOGICALID:
303 ivar->logicalid = (u_int32_t)val;
304 break;
305 case KBDC_IVAR_COMPATID:
306 ivar->compatid = (u_int32_t)val;
307 break;
308 default:
309 return ENOENT;
310 }
311 return 0;
312}
313
314DRIVER_MODULE(atkbdc, isa, atkbdc_driver, atkbdc_devclass, 0, 0);