2 * Copyright (c) 2000 KIYOHARA Takashi <kiyohara@kk.iij4u.ne.jp>
3 * Copyright (c) 2000 Takanori Watanabe <takawata@jp.FreeBSD.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * $FreeBSD: src/sys/pc98/pc98/canbus.c,v 1.3.2.1 2003/02/10 13:11:51 nyan Exp $
30 #include <sys/param.h>
31 #include <sys/systm.h>
33 #include <sys/kernel.h>
34 #include <sys/malloc.h>
35 #include <sys/module.h>
36 #include <sys/sysctl.h>
38 #include <machine/clock.h>
40 #include <machine/bus.h>
41 #include <machine/resource.h>
44 #include <pc98/pc98/canbus.h>
45 #include <pc98/pc98/canbusvars.h>
46 #include "canbus_if.h"
49 #define CANBE_IO_DELAY_TIME 5000
52 static MALLOC_DEFINE(M_CANBUSDEV, "canbusdev", "CanBe device");
53 struct canbus_device {
54 struct resource_list cbdev_resources;
59 int io_delay_time; /* CanBe I/O delay time */
61 struct sysctl_ctx_list canbus_sysctl_ctx;
62 /* dynamic sysctl tree */
65 int index_id; /* index ID */
66 struct resource *index_res; /* index resouce */
67 bus_space_tag_t index_tag; /* index tag */
68 bus_space_handle_t index_handle; /* index handle */
71 int data_id; /* data ID */
72 struct resource *data_res; /* data resouce */
73 bus_space_tag_t data_tag; /* data tag */
74 bus_space_handle_t data_handle; /* data handle */
78 /* Device interface methods */
79 static void canbus_identify(driver_t *, device_t);
80 static int canbus_probe(device_t);
81 static int canbus_attach(device_t);
82 static int canbus_detach(device_t);
84 /* Bus interface methods */
85 static int canbus_print_child(device_t, device_t);
86 static device_t canbus_add_child(device_t, int, const char *, int);
87 static struct resource * canbus_alloc_resource(
88 device_t, device_t, int, int *, u_long, u_long, u_long, u_int);
89 static int canbus_activate_resource(
90 device_t, device_t, int, int, struct resource *);
91 static int canbus_deactivate_resource(
92 device_t, device_t, int, int, struct resource *);
93 static int canbus_release_resource(
94 device_t, device_t, int, int, struct resource *);
95 static int canbus_set_resource (
96 device_t, device_t, int, int, u_long, u_long);
97 static void canbus_delete_resource(device_t, device_t, int, int);
99 /* canbus local function */
100 static void set_ioresource(device_t dev);
101 static void delete_ioresource(device_t dev);
102 static int alloc_ioresource(device_t);
103 static void release_ioresource(device_t);
104 static int print_all_resources(device_t);
106 static device_method_t canbus_methods[] = {
107 /* Device interface */
108 DEVMETHOD(device_identify, canbus_identify),
109 DEVMETHOD(device_probe, canbus_probe),
110 DEVMETHOD(device_attach, canbus_attach),
111 DEVMETHOD(device_detach, canbus_detach),
114 DEVMETHOD(bus_print_child, canbus_print_child),
115 DEVMETHOD(bus_add_child, canbus_add_child),
116 DEVMETHOD(bus_alloc_resource, canbus_alloc_resource),
117 DEVMETHOD(bus_activate_resource, canbus_activate_resource),
118 DEVMETHOD(bus_deactivate_resource, canbus_deactivate_resource),
119 DEVMETHOD(bus_release_resource, canbus_release_resource),
120 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
121 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
122 DEVMETHOD(bus_set_resource, canbus_set_resource),
123 DEVMETHOD(bus_delete_resource, canbus_delete_resource),
125 /* CanBe interface */
126 DEVMETHOD(canbus_read, canbus_read),
127 DEVMETHOD(canbus_write, canbus_write),
128 DEVMETHOD(canbus_write_multi, canbus_write_multi),
133 static driver_t canbus_driver = {
136 sizeof(struct canbus_softc),
139 devclass_t canbus_devclass;
140 DRIVER_MODULE(canbus, nexus, canbus_driver, canbus_devclass, 0, 0);
141 MODULE_VERSION(canbus, 1);
145 canbus_identify(driver_t *drv, device_t parent)
147 if (device_find_child(parent, "canbus", 0) == NULL) {
148 if (BUS_ADD_CHILD(parent, 33, "canbus", 0) == NULL)
149 device_printf(parent, "canbus cannot attach\n");
155 canbus_probe(device_t dev)
160 if(alloc_ioresource(dev))
162 flag = canbus_read(dev, NULL, CANBE_SOUND_INTR_ADDR);
163 release_ioresource(dev);
166 device_printf(dev, "probe flag = 0x%x\n", flag);
168 if (flag != CANBE_SOUND_INTR_VAL0 && flag != CANBE_SOUND_INTR_VAL1 &&
169 flag != CANBE_SOUND_INTR_VAL2 && flag != CANBE_SOUND_INTR_VAL3) {
170 device_printf(dev, "Device Not Found\n");
173 device_set_desc(dev, "CanBe I/O Bus");
179 canbus_attach(device_t dev)
181 struct canbus_softc *sc = device_get_softc(dev);
182 struct sysctl_oid *canbus_sysctl_tree;
184 sc->io_delay_time = CANBE_IO_DELAY_TIME;
186 /* I/O resource setup */
187 if(alloc_ioresource(dev))
190 /* Dynamic sysctl tree setup */
191 sysctl_ctx_init(&sc->canbus_sysctl_ctx);
192 canbus_sysctl_tree = SYSCTL_ADD_NODE(&sc->canbus_sysctl_ctx,
193 SYSCTL_STATIC_CHILDREN(/* tree top */), OID_AUTO,
194 "canbus", CTLFLAG_RD, 0, "CanBe I/O Bus");
195 SYSCTL_ADD_INT(&sc->canbus_sysctl_ctx,
196 SYSCTL_CHILDREN(canbus_sysctl_tree), OID_AUTO, "io_delay_time",
197 CTLFLAG_RW, &sc->io_delay_time, 0, "CanBe Bus I/O delay time");
199 bus_generic_probe(dev);
200 bus_generic_attach(dev);
207 canbus_detach(device_t dev)
209 struct canbus_softc *sc = device_get_softc(dev);
211 /* I/O resource free */
212 release_ioresource(dev);
213 delete_ioresource(dev);
215 /* Dynamic sysctl tree destroy */
216 if (sysctl_ctx_free(&sc->canbus_sysctl_ctx)) {
218 "can't free this context - other oids depend on it\n");
227 canbus_print_child(device_t dev, device_t child)
231 retval += bus_print_child_header(dev, child);
232 retval += print_all_resources(child);
233 retval += bus_print_child_footer(dev, child);
239 canbus_add_child(device_t bus, int order, const char *name, int unit)
242 struct canbus_device *cbdev;
244 child = device_add_child_ordered(bus, order, name, unit);
247 sizeof(struct canbus_device), M_CANBUSDEV, M_NOWAIT | M_ZERO);
251 resource_list_init(&cbdev->cbdev_resources);
252 device_set_ivars(child, cbdev);
257 static struct resource *
258 canbus_alloc_resource(device_t dev, device_t child, int type,
259 int *rid, u_long start, u_long end, u_long count, u_int flags)
261 return (BUS_ALLOC_RESOURCE(device_get_parent(dev),
262 child, type, rid, start, end, count, flags));
266 canbus_activate_resource(
267 device_t dev, device_t child, int type, int rid, struct resource *res)
269 return (BUS_ACTIVATE_RESOURCE(
270 device_get_parent(dev), child, type, rid, res));
274 canbus_deactivate_resource(
275 device_t dev, device_t child, int type, int rid, struct resource *res)
277 return (BUS_DEACTIVATE_RESOURCE(
278 device_get_parent(dev), child, type, rid, res));
282 canbus_release_resource(
283 device_t dev, device_t child, int type, int rid, struct resource *res)
285 return (BUS_RELEASE_RESOURCE(
286 device_get_parent(dev), child, type, rid, res));
290 canbus_set_resource (
291 device_t dev, device_t child, int type, int rid, u_long start, u_long count)
293 struct canbus_device *cbdev =
294 (struct canbus_device *)device_get_ivars(child);
295 struct resource_list *rl = &cbdev->cbdev_resources;
297 resource_list_add(rl, type, rid, start, (start + count - 1), count);
303 canbus_delete_resource(device_t dev, device_t child, int type, int rid)
305 struct canbus_device *cbdev =
306 (struct canbus_device *)device_get_ivars(child);
307 struct resource_list *rl = &cbdev->cbdev_resources;
309 resource_list_delete(rl, type, rid);
314 canbus_read(device_t dev, device_t child, int reg)
316 struct canbus_softc *sc = device_get_softc(dev);
318 bus_space_write_1(sc->index_tag, sc->index_handle, 0, reg);
319 return (bus_space_read_1(sc->data_tag, sc->data_handle, 0));
323 canbus_write(device_t dev, device_t child, int reg, u_int8_t val)
325 struct canbus_softc *sc = device_get_softc(dev);
327 bus_space_write_1(sc->index_tag, sc->index_handle, 0, reg);
328 bus_space_write_1(sc->data_tag, sc->data_handle, 0, val);
332 canbus_write_multi(device_t dev,
333 device_t child, int reg, const int count, const u_int8_t *vals)
335 struct canbus_softc *sc = device_get_softc(dev);
338 bus_space_write_1(sc->index_tag, sc->index_handle, 0, reg);
340 for (i = 0; i < count; i ++) {
341 bus_space_write_1(sc->data_tag, sc->data_handle, 0, vals[i]);
342 DELAY(sc->io_delay_time);
347 canbus_delay(device_t dev, device_t child)
349 struct canbus_softc *sc = device_get_softc(dev);
351 DELAY(sc->io_delay_time);
356 * canbus local function.
360 * CanBe I/O resource set function
363 set_ioresource(device_t dev)
365 struct canbus_softc *sc = device_get_softc(dev);
371 dev, SYS_RES_IOPORT, sc->index_id, CANBE_IOPORT_INDEX, 1);
373 dev, SYS_RES_IOPORT, sc->data_id, CANBE_IOPORT_DATA, 1);
377 * CanBe I/O resource delete function
380 delete_ioresource(device_t dev)
382 struct canbus_softc *sc = device_get_softc(dev);
384 bus_delete_resource(dev, SYS_RES_IOPORT, sc->index_id);
385 bus_delete_resource(dev, SYS_RES_IOPORT, sc->data_id);
389 * CanBe I/O resource alloc function
392 alloc_ioresource(device_t dev)
394 struct canbus_softc *sc = device_get_softc(dev);
396 sc->index_res = bus_alloc_resource(
397 dev, SYS_RES_IOPORT, &sc->index_id, 0ul, ~0ul, 1, RF_ACTIVE);
398 sc->data_res = bus_alloc_resource(
399 dev, SYS_RES_IOPORT, &sc->data_id, 0ul, ~0ul, 1, RF_ACTIVE);
400 if (sc->index_res == NULL || sc->data_res == NULL) {
401 device_printf(dev, "could not map I/O\n");
405 sc->index_tag = rman_get_bustag(sc->index_res);
406 sc->index_handle = rman_get_bushandle(sc->index_res);
407 sc->data_tag = rman_get_bustag(sc->data_res);
408 sc->data_handle = rman_get_bushandle(sc->data_res);
414 * CanBe I/O resource release function
417 release_ioresource(device_t dev)
419 struct canbus_softc *sc = device_get_softc(dev);
421 bus_release_resource(dev, SYS_RES_IOPORT, sc->index_id, sc->index_res);
422 bus_release_resource(dev, SYS_RES_IOPORT, sc->data_id, sc->data_res);
427 print_all_resources(device_t dev)
429 struct canbus_device *cbdev =
430 (struct canbus_device *)device_get_ivars(dev);
431 struct resource_list *rl = &cbdev->cbdev_resources;
435 retval += printf(" at");
437 retval += resource_list_print_type(rl, "port", SYS_RES_IOPORT, "%#lx");
438 retval += resource_list_print_type(rl, "iomem", SYS_RES_MEMORY, "%#lx");
439 retval += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%ld");