master
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 1997,1998,2003 Doug Rabson
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.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#ifndef _SYS_BUS_H_
30#define _SYS_BUS_H_
31
32#include <machine/_limits.h>
33#include <machine/_bus.h>
34#include <sys/_bus_dma.h>
35#include <sys/ioccom.h>
36
37/**
38 * @defgroup NEWBUS newbus - a generic framework for managing devices
39 * @{
40 */
41
42/**
43 * @brief Interface information structure.
44 */
45struct u_businfo {
46 int ub_version; /**< @brief interface version */
47#define BUS_USER_VERSION 2
48 int ub_generation; /**< @brief generation count */
49};
50
51/**
52 * @brief State of the device.
53 */
54typedef enum device_state {
55 DS_NOTPRESENT = 10, /**< @brief not probed or probe failed */
56 DS_ALIVE = 20, /**< @brief probe succeeded */
57 DS_ATTACHING = 25, /**< @brief currently attaching */
58 DS_ATTACHED = 30, /**< @brief attach method called */
59} device_state_t;
60
61/**
62 * @brief Device proprty types.
63 *
64 * Those are used by bus logic to encode requested properties,
65 * e.g. in DT all properties are stored as BE and need to be converted
66 * to host endianness.
67 */
68typedef enum device_property_type {
69 DEVICE_PROP_ANY = 0,
70 DEVICE_PROP_BUFFER = 1,
71 DEVICE_PROP_UINT32 = 2,
72 DEVICE_PROP_UINT64 = 3,
73 DEVICE_PROP_HANDLE = 4,
74} device_property_type_t;
75
76/**
77 * @brief Device information exported to userspace.
78 * The strings are placed one after the other, separated by NUL characters.
79 * Fields should be added after the last one and order maintained for compatibility
80 */
81#define BUS_USER_BUFFER (3*1024)
82struct u_device {
83 uintptr_t dv_handle;
84 uintptr_t dv_parent;
85 uint32_t dv_devflags; /**< @brief API Flags for device */
86 uint16_t dv_flags; /**< @brief flags for dev state */
87 device_state_t dv_state; /**< @brief State of attachment */
88 char dv_fields[BUS_USER_BUFFER]; /**< @brief NUL terminated fields */
89 /* name (name of the device in tree) */
90 /* desc (driver description) */
91 /* drivername (Name of driver without unit number) */
92 /* pnpinfo (Plug and play information from bus) */
93 /* location (Location of device on parent */
94 /* NUL */
95};
96
97/* Flags exported via dv_flags. */
98#define DF_ENABLED 0x01 /* device should be probed/attached */
99#define DF_FIXEDCLASS 0x02 /* devclass specified at create time */
100#define DF_WILDCARD 0x04 /* unit was originally wildcard */
101#define DF_DESCMALLOCED 0x08 /* description was malloced */
102#define DF_QUIET 0x10 /* don't print verbose attach message */
103#define DF_DONENOMATCH 0x20 /* don't execute DEVICE_NOMATCH again */
104#define DF_EXTERNALSOFTC 0x40 /* softc not allocated by us */
105#define DF_SUSPENDED 0x100 /* Device is suspended. */
106#define DF_QUIET_CHILDREN 0x200 /* Default to quiet for all my children */
107#define DF_ATTACHED_ONCE 0x400 /* Has been attached at least once */
108#define DF_NEEDNOMATCH 0x800 /* Has a pending NOMATCH event */
109
110/**
111 * @brief Device request structure used for ioctl's.
112 *
113 * Used for ioctl's on /dev/devctl2. All device ioctl's
114 * must have parameter definitions which begin with dr_name.
115 */
116struct devreq_buffer {
117 void *buffer;
118 size_t length;
119};
120
121struct devreq {
122 char dr_name[128];
123 int dr_flags; /* request-specific flags */
124 union {
125 struct devreq_buffer dru_buffer;
126 void *dru_data;
127 } dr_dru;
128#define dr_buffer dr_dru.dru_buffer /* variable-sized buffer */
129#define dr_data dr_dru.dru_data /* fixed-size buffer */
130};
131
132#define DEV_ATTACH _IOW('D', 1, struct devreq)
133#define DEV_DETACH _IOW('D', 2, struct devreq)
134#define DEV_ENABLE _IOW('D', 3, struct devreq)
135#define DEV_DISABLE _IOW('D', 4, struct devreq)
136#define DEV_SUSPEND _IOW('D', 5, struct devreq)
137#define DEV_RESUME _IOW('D', 6, struct devreq)
138#define DEV_SET_DRIVER _IOW('D', 7, struct devreq)
139#define DEV_CLEAR_DRIVER _IOW('D', 8, struct devreq)
140#define DEV_RESCAN _IOW('D', 9, struct devreq)
141#define DEV_DELETE _IOW('D', 10, struct devreq)
142#define DEV_FREEZE _IOW('D', 11, struct devreq)
143#define DEV_THAW _IOW('D', 12, struct devreq)
144#define DEV_RESET _IOW('D', 13, struct devreq)
145#define DEV_GET_PATH _IOWR('D', 14, struct devreq)
146
147/* Flags for DEV_DETACH and DEV_DISABLE. */
148#define DEVF_FORCE_DETACH 0x0000001
149
150/* Flags for DEV_SET_DRIVER. */
151#define DEVF_SET_DRIVER_DETACH 0x0000001 /* Detach existing driver. */
152
153/* Flags for DEV_CLEAR_DRIVER. */
154#define DEVF_CLEAR_DRIVER_DETACH 0x0000001 /* Detach existing driver. */
155
156/* Flags for DEV_DELETE. */
157#define DEVF_FORCE_DELETE 0x0000001
158
159/* Flags for DEV_RESET */
160#define DEVF_RESET_DETACH 0x0000001 /* Detach drivers vs suspend
161 device */
162
163#ifdef _KERNEL
164
165#include <sys/_eventhandler.h>
166#include <sys/kobj.h>
167#include <sys/systm.h>
168#include <sys/devctl.h>
169
170/**
171 * Device name parsers. Hook to allow device enumerators to map
172 * scheme-specific names to a device.
173 */
174typedef void (*dev_lookup_fn)(void *arg, const char *name,
175 device_t *result);
176EVENTHANDLER_DECLARE(dev_lookup, dev_lookup_fn);
177
178/**
179 * @brief A device driver.
180 *
181 * Provides an abstraction layer for driver dispatch.
182 */
183typedef struct kobj_class driver_t;
184
185/**
186 * @brief A device class
187 *
188 * The devclass object has two main functions in the system. The first
189 * is to manage the allocation of unit numbers for device instances
190 * and the second is to hold the list of device drivers for a
191 * particular bus type. Each devclass has a name and there cannot be
192 * two devclasses with the same name. This ensures that unique unit
193 * numbers are allocated to device instances.
194 *
195 * Drivers that support several different bus attachments (e.g. isa,
196 * pci, pccard) should all use the same devclass to ensure that unit
197 * numbers do not conflict.
198 *
199 * Each devclass may also have a parent devclass. This is used when
200 * searching for device drivers to allow a form of inheritance. When
201 * matching drivers with devices, first the driver list of the parent
202 * device's devclass is searched. If no driver is found in that list,
203 * the search continues in the parent devclass (if any).
204 */
205typedef struct devclass *devclass_t;
206
207/**
208 * @brief A device method
209 */
210#define device_method_t kobj_method_t
211
212/**
213 * @brief Driver interrupt filter return values
214 *
215 * If a driver provides an interrupt filter routine it must return an
216 * integer consisting of oring together zero or more of the following
217 * flags:
218 *
219 * FILTER_STRAY - this device did not trigger the interrupt
220 * FILTER_HANDLED - the interrupt has been fully handled and can be EOId
221 * FILTER_SCHEDULE_THREAD - the threaded interrupt handler should be
222 * scheduled to execute
223 *
224 * If the driver does not provide a filter, then the interrupt code will
225 * act is if the filter had returned FILTER_SCHEDULE_THREAD. Note that it
226 * is illegal to specify any other flag with FILTER_STRAY and that it is
227 * illegal to not specify either of FILTER_HANDLED or FILTER_SCHEDULE_THREAD
228 * if FILTER_STRAY is not specified.
229 */
230#define FILTER_STRAY 0x01
231#define FILTER_HANDLED 0x02
232#define FILTER_SCHEDULE_THREAD 0x04
233
234/**
235 * @brief Driver interrupt service routines
236 *
237 * The filter routine is run in primary interrupt context and may not
238 * block or use regular mutexes. It may only use spin mutexes for
239 * synchronization. The filter may either completely handle the
240 * interrupt or it may perform some of the work and defer more
241 * expensive work to the regular interrupt handler. If a filter
242 * routine is not registered by the driver, then the regular interrupt
243 * handler is always used to handle interrupts from this device.
244 *
245 * The regular interrupt handler executes in its own thread context
246 * and may use regular mutexes. However, it is prohibited from
247 * sleeping on a sleep queue.
248 */
249typedef int driver_filter_t(void*);
250typedef void driver_intr_t(void*);
251
252/**
253 * @brief Interrupt type bits.
254 *
255 * These flags may be passed by drivers to bus_setup_intr(9) when
256 * registering a new interrupt handler. The field is overloaded to
257 * specify both the interrupt's type and any special properties.
258 *
259 * The INTR_TYPE* bits will be passed to intr_priority(9) to determine
260 * the scheduling priority of the handler's ithread. Historically, each
261 * type was assigned a unique scheduling preference, but now only
262 * INTR_TYPE_CLK receives a default priority higher than other
263 * interrupts. See sys/priority.h.
264 *
265 * Buses may choose to modify or augment these flags as appropriate,
266 * e.g. nexus may apply INTR_EXCL.
267 */
268enum intr_type {
269 INTR_TYPE_TTY = 1,
270 INTR_TYPE_BIO = 2,
271 INTR_TYPE_NET = 4,
272 INTR_TYPE_CAM = 8,
273 INTR_TYPE_MISC = 16,
274 INTR_TYPE_CLK = 32,
275 INTR_TYPE_AV = 64,
276 INTR_EXCL = 256, /* exclusive interrupt */
277 INTR_MPSAFE = 512, /* this interrupt is SMP safe */
278 INTR_ENTROPY = 1024, /* this interrupt provides entropy */
279 INTR_MD1 = 4096, /* flag reserved for MD use */
280 INTR_MD2 = 8192, /* flag reserved for MD use */
281 INTR_MD3 = 16384, /* flag reserved for MD use */
282 INTR_MD4 = 32768 /* flag reserved for MD use */
283};
284
285enum intr_trigger {
286 INTR_TRIGGER_INVALID = -1,
287 INTR_TRIGGER_CONFORM = 0,
288 INTR_TRIGGER_EDGE = 1,
289 INTR_TRIGGER_LEVEL = 2
290};
291
292enum intr_polarity {
293 INTR_POLARITY_CONFORM = 0,
294 INTR_POLARITY_HIGH = 1,
295 INTR_POLARITY_LOW = 2
296};
297
298/**
299 * CPU sets supported by bus_get_cpus(). Note that not all sets may be
300 * supported for a given device. If a request is not supported by a
301 * device (or its parents), then bus_get_cpus() will fail with EINVAL.
302 */
303enum cpu_sets {
304 LOCAL_CPUS = 0,
305 INTR_CPUS
306};
307
308typedef int (*devop_t)(void);
309
310/**
311 * @brief This structure is deprecated.
312 *
313 * Use the kobj(9) macro DEFINE_CLASS to
314 * declare classes which implement device drivers.
315 */
316struct driver {
317 KOBJ_CLASS_FIELDS;
318};
319
320struct resource;
321
322/**
323 * @brief A resource mapping.
324 */
325struct resource_map {
326 bus_space_tag_t r_bustag;
327 bus_space_handle_t r_bushandle;
328 bus_size_t r_size;
329 void *r_vaddr;
330};
331
332/**
333 * @brief Optional properties of a resource mapping request.
334 */
335struct resource_map_request {
336 size_t size;
337 rman_res_t offset;
338 rman_res_t length;
339 vm_memattr_t memattr;
340};
341
342void resource_init_map_request_impl(struct resource_map_request *_args,
343 size_t _sz);
344#define resource_init_map_request(rmr) \
345 resource_init_map_request_impl((rmr), sizeof(*(rmr)))
346int resource_validate_map_request(struct resource *r,
347 struct resource_map_request *in, struct resource_map_request *out,
348 rman_res_t *startp, rman_res_t *lengthp);
349
350/*
351 * Definitions for drivers which need to keep simple lists of resources
352 * for their child devices.
353 */
354
355/**
356 * @brief An entry for a single resource in a resource list.
357 */
358struct resource_list_entry {
359 STAILQ_ENTRY(resource_list_entry) link;
360 int type; /**< @brief type argument to alloc_resource */
361 int rid; /**< @brief resource identifier */
362 int flags; /**< @brief resource flags */
363 struct resource *res; /**< @brief the real resource when allocated */
364 rman_res_t start; /**< @brief start of resource range */
365 rman_res_t end; /**< @brief end of resource range */
366 rman_res_t count; /**< @brief count within range */
367};
368STAILQ_HEAD(resource_list, resource_list_entry);
369
370#define RLE_RESERVED 0x0001 /* Reserved by the parent bus. */
371#define RLE_ALLOCATED 0x0002 /* Reserved resource is allocated. */
372#define RLE_PREFETCH 0x0004 /* Resource is a prefetch range. */
373
374void resource_list_init(struct resource_list *rl);
375void resource_list_free(struct resource_list *rl);
376struct resource_list_entry *
377 resource_list_add(struct resource_list *rl,
378 int type, int rid,
379 rman_res_t start, rman_res_t end, rman_res_t count);
380int resource_list_add_next(struct resource_list *rl,
381 int type,
382 rman_res_t start, rman_res_t end, rman_res_t count);
383int resource_list_busy(struct resource_list *rl,
384 int type, int rid);
385int resource_list_reserved(struct resource_list *rl, int type, int rid);
386struct resource_list_entry*
387 resource_list_find(struct resource_list *rl,
388 int type, int rid);
389void resource_list_delete(struct resource_list *rl,
390 int type, int rid);
391struct resource *
392 resource_list_alloc(struct resource_list *rl,
393 device_t bus, device_t child,
394 int type, int *rid,
395 rman_res_t start, rman_res_t end,
396 rman_res_t count, u_int flags);
397int resource_list_release(struct resource_list *rl,
398 device_t bus, device_t child,
399 int type, int rid, struct resource *res);
400int resource_list_release_active(struct resource_list *rl,
401 device_t bus, device_t child,
402 int type);
403struct resource *
404 resource_list_reserve(struct resource_list *rl,
405 device_t bus, device_t child,
406 int type, int *rid,
407 rman_res_t start, rman_res_t end,
408 rman_res_t count, u_int flags);
409int resource_list_unreserve(struct resource_list *rl,
410 device_t bus, device_t child,
411 int type, int rid);
412void resource_list_purge(struct resource_list *rl);
413int resource_list_print_type(struct resource_list *rl,
414 const char *name, int type,
415 const char *format);
416
417/*
418 * The root bus, to which all top-level buses are attached.
419 */
420extern device_t root_bus;
421extern devclass_t root_devclass;
422void root_bus_configure(void);
423
424/*
425 * Useful functions for implementing buses.
426 */
427
428struct _cpuset;
429
430int bus_generic_activate_resource(device_t dev, device_t child, int type,
431 int rid, struct resource *r);
432device_t
433 bus_generic_add_child(device_t dev, u_int order, const char *name,
434 int unit);
435int bus_generic_adjust_resource(device_t bus, device_t child, int type,
436 struct resource *r, rman_res_t start,
437 rman_res_t end);
438struct resource *
439 bus_generic_alloc_resource(device_t bus, device_t child, int type,
440 int *rid, rman_res_t start, rman_res_t end,
441 rman_res_t count, u_int flags);
442int bus_generic_translate_resource(device_t dev, int type, rman_res_t start,
443 rman_res_t *newstart);
444int bus_generic_attach(device_t dev);
445int bus_generic_bind_intr(device_t dev, device_t child,
446 struct resource *irq, int cpu);
447int bus_generic_child_location(device_t dev, device_t child, struct sbuf *sb);
448int bus_generic_child_pnpinfo(device_t dev, device_t child, struct sbuf *sb);
449int bus_generic_child_present(device_t dev, device_t child);
450int bus_generic_config_intr(device_t, int, enum intr_trigger,
451 enum intr_polarity);
452int bus_generic_describe_intr(device_t dev, device_t child,
453 struct resource *irq, void *cookie,
454 const char *descr);
455int bus_generic_deactivate_resource(device_t dev, device_t child, int type,
456 int rid, struct resource *r);
457int bus_generic_detach(device_t dev);
458void bus_generic_driver_added(device_t dev, driver_t *driver);
459int bus_generic_get_cpus(device_t dev, device_t child, enum cpu_sets op,
460 size_t setsize, struct _cpuset *cpuset);
461bus_dma_tag_t
462 bus_generic_get_dma_tag(device_t dev, device_t child);
463bus_space_tag_t
464 bus_generic_get_bus_tag(device_t dev, device_t child);
465int bus_generic_get_domain(device_t dev, device_t child, int *domain);
466ssize_t bus_generic_get_property(device_t dev, device_t child,
467 const char *propname, void *propvalue,
468 size_t size, device_property_type_t type);
469struct resource_list *
470 bus_generic_get_resource_list(device_t, device_t);
471int bus_generic_map_resource(device_t dev, device_t child, int type,
472 struct resource *r,
473 struct resource_map_request *args,
474 struct resource_map *map);
475void bus_generic_new_pass(device_t dev);
476int bus_print_child_header(device_t dev, device_t child);
477int bus_print_child_domain(device_t dev, device_t child);
478int bus_print_child_footer(device_t dev, device_t child);
479int bus_generic_print_child(device_t dev, device_t child);
480int bus_generic_probe(device_t dev);
481int bus_generic_read_ivar(device_t dev, device_t child, int which,
482 uintptr_t *result);
483int bus_generic_release_resource(device_t bus, device_t child,
484 int type, int rid, struct resource *r);
485int bus_generic_resume(device_t dev);
486int bus_generic_resume_child(device_t dev, device_t child);
487int bus_generic_setup_intr(device_t dev, device_t child,
488 struct resource *irq, int flags,
489 driver_filter_t *filter, driver_intr_t *intr,
490 void *arg, void **cookiep);
491
492struct resource *
493 bus_generic_rl_alloc_resource (device_t, device_t, int, int *,
494 rman_res_t, rman_res_t, rman_res_t, u_int);
495void bus_generic_rl_delete_resource (device_t, device_t, int, int);
496int bus_generic_rl_get_resource (device_t, device_t, int, int, rman_res_t *,
497 rman_res_t *);
498int bus_generic_rl_set_resource (device_t, device_t, int, int, rman_res_t,
499 rman_res_t);
500int bus_generic_rl_release_resource (device_t, device_t, int, int,
501 struct resource *);
502struct resource *
503 bus_generic_rman_alloc_resource(device_t dev, device_t child, int type,
504 int *rid, rman_res_t start,
505 rman_res_t end, rman_res_t count,
506 u_int flags);
507int bus_generic_rman_adjust_resource(device_t dev, device_t child, int type,
508 struct resource *r, rman_res_t start,
509 rman_res_t end);
510int bus_generic_rman_release_resource(device_t dev, device_t child,
511 int type, int rid,
512 struct resource *r);
513int bus_generic_rman_activate_resource(device_t dev, device_t child,
514 int type, int rid,
515 struct resource *r);
516int bus_generic_rman_deactivate_resource(device_t dev, device_t child,
517 int type, int rid,
518 struct resource *r);
519
520int bus_generic_shutdown(device_t dev);
521int bus_generic_suspend(device_t dev);
522int bus_generic_suspend_child(device_t dev, device_t child);
523int bus_generic_teardown_intr(device_t dev, device_t child,
524 struct resource *irq, void *cookie);
525int bus_generic_suspend_intr(device_t dev, device_t child,
526 struct resource *irq);
527int bus_generic_resume_intr(device_t dev, device_t child,
528 struct resource *irq);
529int bus_generic_unmap_resource(device_t dev, device_t child, int type,
530 struct resource *r,
531 struct resource_map *map);
532int bus_generic_write_ivar(device_t dev, device_t child, int which,
533 uintptr_t value);
534int bus_generic_get_device_path(device_t bus, device_t child, const char *locator,
535 struct sbuf *sb);
536int bus_helper_reset_post(device_t dev, int flags);
537int bus_helper_reset_prepare(device_t dev, int flags);
538int bus_null_rescan(device_t dev);
539
540/*
541 * Wrapper functions for the BUS_*_RESOURCE methods to make client code
542 * a little simpler.
543 */
544
545struct resource_spec {
546 int type;
547 int rid;
548 int flags;
549};
550#define RESOURCE_SPEC_END {-1, 0, 0}
551
552int bus_alloc_resources(device_t dev, struct resource_spec *rs,
553 struct resource **res);
554void bus_release_resources(device_t dev, const struct resource_spec *rs,
555 struct resource **res);
556
557int bus_adjust_resource(device_t child, int type, struct resource *r,
558 rman_res_t start, rman_res_t end);
559int bus_translate_resource(device_t child, int type, rman_res_t start,
560 rman_res_t *newstart);
561struct resource *bus_alloc_resource(device_t dev, int type, int *rid,
562 rman_res_t start, rman_res_t end,
563 rman_res_t count, u_int flags);
564int bus_activate_resource(device_t dev, int type, int rid,
565 struct resource *r);
566int bus_deactivate_resource(device_t dev, int type, int rid,
567 struct resource *r);
568int bus_map_resource(device_t dev, int type, struct resource *r,
569 struct resource_map_request *args,
570 struct resource_map *map);
571int bus_unmap_resource(device_t dev, int type, struct resource *r,
572 struct resource_map *map);
573int bus_get_cpus(device_t dev, enum cpu_sets op, size_t setsize,
574 struct _cpuset *cpuset);
575bus_dma_tag_t bus_get_dma_tag(device_t dev);
576bus_space_tag_t bus_get_bus_tag(device_t dev);
577int bus_get_domain(device_t dev, int *domain);
578int bus_release_resource(device_t dev, int type, int rid,
579 struct resource *r);
580int bus_free_resource(device_t dev, int type, struct resource *r);
581int bus_setup_intr(device_t dev, struct resource *r, int flags,
582 driver_filter_t filter, driver_intr_t handler,
583 void *arg, void **cookiep);
584int bus_teardown_intr(device_t dev, struct resource *r, void *cookie);
585int bus_suspend_intr(device_t dev, struct resource *r);
586int bus_resume_intr(device_t dev, struct resource *r);
587int bus_bind_intr(device_t dev, struct resource *r, int cpu);
588int bus_describe_intr(device_t dev, struct resource *irq, void *cookie,
589 const char *fmt, ...) __printflike(4, 5);
590int bus_set_resource(device_t dev, int type, int rid,
591 rman_res_t start, rman_res_t count);
592int bus_get_resource(device_t dev, int type, int rid,
593 rman_res_t *startp, rman_res_t *countp);
594rman_res_t bus_get_resource_start(device_t dev, int type, int rid);
595rman_res_t bus_get_resource_count(device_t dev, int type, int rid);
596void bus_delete_resource(device_t dev, int type, int rid);
597int bus_child_present(device_t child);
598int bus_child_pnpinfo(device_t child, struct sbuf *sb);
599int bus_child_location(device_t child, struct sbuf *sb);
600void bus_enumerate_hinted_children(device_t bus);
601int bus_delayed_attach_children(device_t bus);
602
603static __inline struct resource *
604bus_alloc_resource_any(device_t dev, int type, int *rid, u_int flags)
605{
606 return (bus_alloc_resource(dev, type, rid, 0, ~0, 1, flags));
607}
608
609static __inline struct resource *
610bus_alloc_resource_anywhere(device_t dev, int type, int *rid,
611 rman_res_t count, u_int flags)
612{
613 return (bus_alloc_resource(dev, type, rid, 0, ~0, count, flags));
614}
615
616/*
617 * Access functions for device.
618 */
619device_t device_add_child(device_t dev, const char *name, int unit);
620device_t device_add_child_ordered(device_t dev, u_int order,
621 const char *name, int unit);
622void device_busy(device_t dev);
623int device_delete_child(device_t dev, device_t child);
624int device_delete_children(device_t dev);
625int device_attach(device_t dev);
626int device_detach(device_t dev);
627void device_disable(device_t dev);
628void device_enable(device_t dev);
629device_t device_find_child(device_t dev, const char *classname,
630 int unit);
631const char *device_get_desc(device_t dev);
632devclass_t device_get_devclass(device_t dev);
633driver_t *device_get_driver(device_t dev);
634u_int32_t device_get_flags(device_t dev);
635device_t device_get_parent(device_t dev);
636int device_get_children(device_t dev, device_t **listp, int *countp);
637void *device_get_ivars(device_t dev);
638void device_set_ivars(device_t dev, void *ivars);
639const char *device_get_name(device_t dev);
640const char *device_get_nameunit(device_t dev);
641void *device_get_softc(device_t dev);
642device_state_t device_get_state(device_t dev);
643int device_get_unit(device_t dev);
644struct sysctl_ctx_list *device_get_sysctl_ctx(device_t dev);
645struct sysctl_oid *device_get_sysctl_tree(device_t dev);
646int device_has_quiet_children(device_t dev);
647int device_is_alive(device_t dev); /* did probe succeed? */
648int device_is_attached(device_t dev); /* did attach succeed? */
649int device_is_enabled(device_t dev);
650int device_is_suspended(device_t dev);
651int device_is_quiet(device_t dev);
652device_t device_lookup_by_name(const char *name);
653int device_print_prettyname(device_t dev);
654int device_printf(device_t dev, const char *, ...) __printflike(2, 3);
655int device_log(device_t dev, int pri, const char *, ...) __printflike(3, 4);
656int device_probe(device_t dev);
657int device_probe_and_attach(device_t dev);
658int device_probe_child(device_t bus, device_t dev);
659int device_quiesce(device_t dev);
660void device_quiet(device_t dev);
661void device_quiet_children(device_t dev);
662void device_set_desc(device_t dev, const char* desc);
663void device_set_descf(device_t dev, const char* fmt, ...) __printflike(2, 3);
664void device_set_desc_copy(device_t dev, const char* desc);
665int device_set_devclass(device_t dev, const char *classname);
666int device_set_devclass_fixed(device_t dev, const char *classname);
667bool device_is_devclass_fixed(device_t dev);
668int device_set_driver(device_t dev, driver_t *driver);
669void device_set_flags(device_t dev, u_int32_t flags);
670void device_set_softc(device_t dev, void *softc);
671void device_free_softc(void *softc);
672void device_claim_softc(device_t dev);
673int device_set_unit(device_t dev, int unit); /* XXX DONT USE XXX */
674int device_shutdown(device_t dev);
675void device_unbusy(device_t dev);
676void device_verbose(device_t dev);
677ssize_t device_get_property(device_t dev, const char *prop, void *val,
678 size_t sz, device_property_type_t type);
679bool device_has_property(device_t dev, const char *prop);
680
681/*
682 * Access functions for devclass.
683 */
684int devclass_add_driver(devclass_t dc, driver_t *driver,
685 int pass, devclass_t *dcp);
686devclass_t devclass_create(const char *classname);
687int devclass_delete_driver(devclass_t busclass, driver_t *driver);
688devclass_t devclass_find(const char *classname);
689const char *devclass_get_name(devclass_t dc);
690device_t devclass_get_device(devclass_t dc, int unit);
691void *devclass_get_softc(devclass_t dc, int unit);
692int devclass_get_devices(devclass_t dc, device_t **listp, int *countp);
693int devclass_get_drivers(devclass_t dc, driver_t ***listp, int *countp);
694int devclass_get_count(devclass_t dc);
695int devclass_get_maxunit(devclass_t dc);
696int devclass_find_free_unit(devclass_t dc, int unit);
697void devclass_set_parent(devclass_t dc, devclass_t pdc);
698devclass_t devclass_get_parent(devclass_t dc);
699struct sysctl_ctx_list *devclass_get_sysctl_ctx(devclass_t dc);
700struct sysctl_oid *devclass_get_sysctl_tree(devclass_t dc);
701
702/*
703 * Access functions for device resources.
704 */
705int resource_int_value(const char *name, int unit, const char *resname,
706 int *result);
707int resource_long_value(const char *name, int unit, const char *resname,
708 long *result);
709int resource_string_value(const char *name, int unit, const char *resname,
710 const char **result);
711int resource_disabled(const char *name, int unit);
712int resource_find_match(int *anchor, const char **name, int *unit,
713 const char *resname, const char *value);
714int resource_find_dev(int *anchor, const char *name, int *unit,
715 const char *resname, const char *value);
716int resource_unset_value(const char *name, int unit, const char *resname);
717
718/*
719 * Functions for maintaining and checking consistency of
720 * bus information exported to userspace.
721 */
722int bus_data_generation_check(int generation);
723void bus_data_generation_update(void);
724
725/**
726 * Some convenience defines for probe routines to return. These are just
727 * suggested values, and there's nothing magical about them.
728 * BUS_PROBE_SPECIFIC is for devices that cannot be reprobed, and that no
729 * possible other driver may exist (typically legacy drivers who don't follow
730 * all the rules, or special needs drivers). BUS_PROBE_VENDOR is the
731 * suggested value that vendor supplied drivers use. This is for source or
732 * binary drivers that are not yet integrated into the FreeBSD tree. Its use
733 * in the base OS is prohibited. BUS_PROBE_DEFAULT is the normal return value
734 * for drivers to use. It is intended that nearly all of the drivers in the
735 * tree should return this value. BUS_PROBE_LOW_PRIORITY are for drivers that
736 * have special requirements like when there are two drivers that support
737 * overlapping series of hardware devices. In this case the one that supports
738 * the older part of the line would return this value, while the one that
739 * supports the newer ones would return BUS_PROBE_DEFAULT. BUS_PROBE_GENERIC
740 * is for drivers that wish to have a generic form and a specialized form,
741 * like is done with the pci bus and the acpi pci bus. BUS_PROBE_HOOVER is
742 * for those buses that implement a generic device placeholder for devices on
743 * the bus that have no more specific driver for them (aka ugen).
744 * BUS_PROBE_NOWILDCARD or lower means that the device isn't really bidding
745 * for a device node, but accepts only devices that its parent has told it
746 * use this driver.
747 */
748#define BUS_PROBE_SPECIFIC 0 /* Only I can use this device */
749#define BUS_PROBE_VENDOR (-10) /* Vendor supplied driver */
750#define BUS_PROBE_DEFAULT (-20) /* Base OS default driver */
751#define BUS_PROBE_LOW_PRIORITY (-40) /* Older, less desirable drivers */
752#define BUS_PROBE_GENERIC (-100) /* generic driver for dev */
753#define BUS_PROBE_HOOVER (-1000000) /* Driver for any dev on bus */
754#define BUS_PROBE_NOWILDCARD (-2000000000) /* No wildcard device matches */
755
756/**
757 * During boot, the device tree is scanned multiple times. Each scan,
758 * or pass, drivers may be attached to devices. Each driver
759 * attachment is assigned a pass number. Drivers may only probe and
760 * attach to devices if their pass number is less than or equal to the
761 * current system-wide pass number. The default pass is the last pass
762 * and is used by most drivers. Drivers needed by the scheduler are
763 * probed in earlier passes.
764 */
765#define BUS_PASS_ROOT 0 /* Used to attach root0. */
766#define BUS_PASS_BUS 10 /* Buses and bridges. */
767#define BUS_PASS_CPU 20 /* CPU devices. */
768#define BUS_PASS_RESOURCE 30 /* Resource discovery. */
769#define BUS_PASS_INTERRUPT 40 /* Interrupt controllers. */
770#define BUS_PASS_TIMER 50 /* Timers and clocks. */
771#define BUS_PASS_SCHEDULER 60 /* Start scheduler. */
772#define BUS_PASS_SUPPORTDEV 100000 /* Drivers which support DEFAULT drivers. */
773#define BUS_PASS_DEFAULT __INT_MAX /* Everything else. */
774
775#define BUS_PASS_ORDER_FIRST 0
776#define BUS_PASS_ORDER_EARLY 2
777#define BUS_PASS_ORDER_MIDDLE 5
778#define BUS_PASS_ORDER_LATE 7
779#define BUS_PASS_ORDER_LAST 9
780
781#define BUS_LOCATOR_ACPI "ACPI"
782#define BUS_LOCATOR_FREEBSD "FreeBSD"
783#define BUS_LOCATOR_UEFI "UEFI"
784#define BUS_LOCATOR_OFW "OFW"
785
786extern int bus_current_pass;
787
788void bus_set_pass(int pass);
789
790/**
791 * Routines to lock / unlock the newbus lock.
792 * Must be taken out to interact with newbus.
793 */
794void bus_topo_lock(void);
795void bus_topo_unlock(void);
796struct mtx * bus_topo_mtx(void);
797void bus_topo_assert(void);
798
799/**
800 * Shorthands for constructing method tables.
801 */
802#define DEVMETHOD KOBJMETHOD
803#define DEVMETHOD_END KOBJMETHOD_END
804
805/*
806 * Some common device interfaces.
807 */
808#include "device_if.h"
809#include "bus_if.h"
810
811struct module;
812
813int driver_module_handler(struct module *, int, void *);
814
815/**
816 * Module support for automatically adding drivers to buses.
817 */
818struct driver_module_data {
819 int (*dmd_chainevh)(struct module *, int, void *);
820 void *dmd_chainarg;
821 const char *dmd_busname;
822 kobj_class_t dmd_driver;
823 devclass_t *dmd_devclass;
824 int dmd_pass;
825};
826
827#define EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, \
828 order, pass) \
829 \
830static struct driver_module_data name##_##busname##_driver_mod = { \
831 evh, arg, \
832 #busname, \
833 (kobj_class_t) &driver, \
834 NULL, \
835 pass \
836}; \
837 \
838static moduledata_t name##_##busname##_mod = { \
839 #busname "/" #name, \
840 driver_module_handler, \
841 &name##_##busname##_driver_mod \
842}; \
843DECLARE_MODULE(name##_##busname, name##_##busname##_mod, \
844 SI_SUB_DRIVERS, order)
845
846#define EARLY_DRIVER_MODULE(name, busname, driver, evh, arg, pass) \
847 EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, \
848 SI_ORDER_MIDDLE, pass)
849
850#define DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, order) \
851 EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, \
852 order, BUS_PASS_DEFAULT)
853
854#define DRIVER_MODULE(name, busname, driver, evh, arg) \
855 EARLY_DRIVER_MODULE(name, busname, driver, evh, arg, \
856 BUS_PASS_DEFAULT)
857
858/**
859 * Generic ivar accessor generation macros for bus drivers
860 */
861#define __BUS_ACCESSOR(varp, var, ivarp, ivar, type) \
862 \
863static __inline type varp ## _get_ ## var(device_t dev) \
864{ \
865 uintptr_t v; \
866 int e __diagused; \
867 e = BUS_READ_IVAR(device_get_parent(dev), dev, \
868 ivarp ## _IVAR_ ## ivar, &v); \
869 KASSERT(e == 0, ("%s failed for %s on bus %s, error = %d", \
870 __func__, device_get_nameunit(dev), \
871 device_get_nameunit(device_get_parent(dev)), e)); \
872 return ((type) v); \
873} \
874 \
875static __inline void varp ## _set_ ## var(device_t dev, type t) \
876{ \
877 uintptr_t v = (uintptr_t) t; \
878 int e __diagused; \
879 e = BUS_WRITE_IVAR(device_get_parent(dev), dev, \
880 ivarp ## _IVAR_ ## ivar, v); \
881 KASSERT(e == 0, ("%s failed for %s on bus %s, error = %d", \
882 __func__, device_get_nameunit(dev), \
883 device_get_nameunit(device_get_parent(dev)), e)); \
884}
885
886struct device_location_cache;
887typedef struct device_location_cache device_location_cache_t;
888device_location_cache_t *dev_wired_cache_init(void);
889void dev_wired_cache_fini(device_location_cache_t *dcp);
890bool dev_wired_cache_match(device_location_cache_t *dcp, device_t dev, const char *at);
891
892#define DEV_PROP_NAME_IOMMU "iommu-unit"
893typedef void (*device_prop_dtr_t)(device_t dev, const char *name, void *val,
894 void *dtr_ctx);
895int device_set_prop(device_t dev, const char *name, void *val,
896 device_prop_dtr_t dtr, void *dtr_ctx);
897int device_get_prop(device_t dev, const char *name, void **valp);
898int device_clear_prop(device_t dev, const char *name);
899void device_clear_prop_alldev(const char *name);
900
901/**
902 * Shorthand macros, taking resource argument
903 * Generated with sys/tools/bus_macro.sh
904 */
905
906#define bus_barrier(r, o, l, f) \
907 bus_space_barrier((r)->r_bustag, (r)->r_bushandle, (o), (l), (f))
908#define bus_poke_1(r, o, v) \
909 bus_space_poke_1((r)->r_bustag, (r)->r_bushandle, (o), (v))
910#define bus_peek_1(r, o, vp) \
911 bus_space_peek_1((r)->r_bustag, (r)->r_bushandle, (o), (vp))
912#define bus_read_1(r, o) \
913 bus_space_read_1((r)->r_bustag, (r)->r_bushandle, (o))
914#define bus_read_multi_1(r, o, d, c) \
915 bus_space_read_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
916#define bus_read_region_1(r, o, d, c) \
917 bus_space_read_region_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
918#define bus_set_multi_1(r, o, v, c) \
919 bus_space_set_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
920#define bus_set_region_1(r, o, v, c) \
921 bus_space_set_region_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
922#define bus_write_1(r, o, v) \
923 bus_space_write_1((r)->r_bustag, (r)->r_bushandle, (o), (v))
924#define bus_write_multi_1(r, o, d, c) \
925 bus_space_write_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
926#define bus_write_region_1(r, o, d, c) \
927 bus_space_write_region_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
928#define bus_read_stream_1(r, o) \
929 bus_space_read_stream_1((r)->r_bustag, (r)->r_bushandle, (o))
930#define bus_read_multi_stream_1(r, o, d, c) \
931 bus_space_read_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
932#define bus_read_region_stream_1(r, o, d, c) \
933 bus_space_read_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
934#define bus_set_multi_stream_1(r, o, v, c) \
935 bus_space_set_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
936#define bus_set_region_stream_1(r, o, v, c) \
937 bus_space_set_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
938#define bus_write_stream_1(r, o, v) \
939 bus_space_write_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v))
940#define bus_write_multi_stream_1(r, o, d, c) \
941 bus_space_write_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
942#define bus_write_region_stream_1(r, o, d, c) \
943 bus_space_write_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
944#define bus_poke_2(r, o, v) \
945 bus_space_poke_2((r)->r_bustag, (r)->r_bushandle, (o), (v))
946#define bus_peek_2(r, o, vp) \
947 bus_space_peek_2((r)->r_bustag, (r)->r_bushandle, (o), (vp))
948#define bus_read_2(r, o) \
949 bus_space_read_2((r)->r_bustag, (r)->r_bushandle, (o))
950#define bus_read_multi_2(r, o, d, c) \
951 bus_space_read_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
952#define bus_read_region_2(r, o, d, c) \
953 bus_space_read_region_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
954#define bus_set_multi_2(r, o, v, c) \
955 bus_space_set_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
956#define bus_set_region_2(r, o, v, c) \
957 bus_space_set_region_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
958#define bus_write_2(r, o, v) \
959 bus_space_write_2((r)->r_bustag, (r)->r_bushandle, (o), (v))
960#define bus_write_multi_2(r, o, d, c) \
961 bus_space_write_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
962#define bus_write_region_2(r, o, d, c) \
963 bus_space_write_region_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
964#define bus_read_stream_2(r, o) \
965 bus_space_read_stream_2((r)->r_bustag, (r)->r_bushandle, (o))
966#define bus_read_multi_stream_2(r, o, d, c) \
967 bus_space_read_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
968#define bus_read_region_stream_2(r, o, d, c) \
969 bus_space_read_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
970#define bus_set_multi_stream_2(r, o, v, c) \
971 bus_space_set_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
972#define bus_set_region_stream_2(r, o, v, c) \
973 bus_space_set_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
974#define bus_write_stream_2(r, o, v) \
975 bus_space_write_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v))
976#define bus_write_multi_stream_2(r, o, d, c) \
977 bus_space_write_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
978#define bus_write_region_stream_2(r, o, d, c) \
979 bus_space_write_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
980#define bus_poke_4(r, o, v) \
981 bus_space_poke_4((r)->r_bustag, (r)->r_bushandle, (o), (v))
982#define bus_peek_4(r, o, vp) \
983 bus_space_peek_4((r)->r_bustag, (r)->r_bushandle, (o), (vp))
984#define bus_read_4(r, o) \
985 bus_space_read_4((r)->r_bustag, (r)->r_bushandle, (o))
986#define bus_read_multi_4(r, o, d, c) \
987 bus_space_read_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
988#define bus_read_region_4(r, o, d, c) \
989 bus_space_read_region_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
990#define bus_set_multi_4(r, o, v, c) \
991 bus_space_set_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
992#define bus_set_region_4(r, o, v, c) \
993 bus_space_set_region_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
994#define bus_write_4(r, o, v) \
995 bus_space_write_4((r)->r_bustag, (r)->r_bushandle, (o), (v))
996#define bus_write_multi_4(r, o, d, c) \
997 bus_space_write_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
998#define bus_write_region_4(r, o, d, c) \
999 bus_space_write_region_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1000#define bus_read_stream_4(r, o) \
1001 bus_space_read_stream_4((r)->r_bustag, (r)->r_bushandle, (o))
1002#define bus_read_multi_stream_4(r, o, d, c) \
1003 bus_space_read_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1004#define bus_read_region_stream_4(r, o, d, c) \
1005 bus_space_read_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1006#define bus_set_multi_stream_4(r, o, v, c) \
1007 bus_space_set_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1008#define bus_set_region_stream_4(r, o, v, c) \
1009 bus_space_set_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1010#define bus_write_stream_4(r, o, v) \
1011 bus_space_write_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v))
1012#define bus_write_multi_stream_4(r, o, d, c) \
1013 bus_space_write_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1014#define bus_write_region_stream_4(r, o, d, c) \
1015 bus_space_write_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1016#define bus_poke_8(r, o, v) \
1017 bus_space_poke_8((r)->r_bustag, (r)->r_bushandle, (o), (v))
1018#define bus_peek_8(r, o, vp) \
1019 bus_space_peek_8((r)->r_bustag, (r)->r_bushandle, (o), (vp))
1020#define bus_read_8(r, o) \
1021 bus_space_read_8((r)->r_bustag, (r)->r_bushandle, (o))
1022#define bus_read_multi_8(r, o, d, c) \
1023 bus_space_read_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1024#define bus_read_region_8(r, o, d, c) \
1025 bus_space_read_region_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1026#define bus_set_multi_8(r, o, v, c) \
1027 bus_space_set_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1028#define bus_set_region_8(r, o, v, c) \
1029 bus_space_set_region_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1030#define bus_write_8(r, o, v) \
1031 bus_space_write_8((r)->r_bustag, (r)->r_bushandle, (o), (v))
1032#define bus_write_multi_8(r, o, d, c) \
1033 bus_space_write_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1034#define bus_write_region_8(r, o, d, c) \
1035 bus_space_write_region_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1036#define bus_read_stream_8(r, o) \
1037 bus_space_read_stream_8((r)->r_bustag, (r)->r_bushandle, (o))
1038#define bus_read_multi_stream_8(r, o, d, c) \
1039 bus_space_read_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1040#define bus_read_region_stream_8(r, o, d, c) \
1041 bus_space_read_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1042#define bus_set_multi_stream_8(r, o, v, c) \
1043 bus_space_set_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1044#define bus_set_region_stream_8(r, o, v, c) \
1045 bus_space_set_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1046#define bus_write_stream_8(r, o, v) \
1047 bus_space_write_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v))
1048#define bus_write_multi_stream_8(r, o, d, c) \
1049 bus_space_write_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1050#define bus_write_region_stream_8(r, o, d, c) \
1051 bus_space_write_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1052#endif /* _KERNEL */
1053
1054#endif /* !_SYS_BUS_H_ */