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#define DEVICE_UNIT_ANY (-1)
163
164#ifdef _KERNEL
165
166#include <sys/_eventhandler.h>
167#include <sys/kobj.h>
168#include <sys/systm.h>
169#include <sys/devctl.h>
170
171/**
172 * Device name parsers. Hook to allow device enumerators to map
173 * scheme-specific names to a device.
174 */
175typedef void (*dev_lookup_fn)(void *arg, const char *name,
176 device_t *result);
177EVENTHANDLER_DECLARE(dev_lookup, dev_lookup_fn);
178
179/**
180 * @brief A device driver.
181 *
182 * Provides an abstraction layer for driver dispatch.
183 */
184typedef struct kobj_class driver_t;
185
186/**
187 * @brief A device class
188 *
189 * The devclass object has two main functions in the system. The first
190 * is to manage the allocation of unit numbers for device instances
191 * and the second is to hold the list of device drivers for a
192 * particular bus type. Each devclass has a name and there cannot be
193 * two devclasses with the same name. This ensures that unique unit
194 * numbers are allocated to device instances.
195 *
196 * Drivers that support several different bus attachments (e.g. isa,
197 * pci, pccard) should all use the same devclass to ensure that unit
198 * numbers do not conflict.
199 *
200 * Each devclass may also have a parent devclass. This is used when
201 * searching for device drivers to allow a form of inheritance. When
202 * matching drivers with devices, first the driver list of the parent
203 * device's devclass is searched. If no driver is found in that list,
204 * the search continues in the parent devclass (if any).
205 */
206typedef struct devclass *devclass_t;
207
208/**
209 * @brief A device method
210 */
211#define device_method_t kobj_method_t
212
213/**
214 * @brief Driver interrupt filter return values
215 *
216 * If a driver provides an interrupt filter routine it must return an
217 * integer consisting of oring together zero or more of the following
218 * flags:
219 *
220 * FILTER_STRAY - this device did not trigger the interrupt
221 * FILTER_HANDLED - the interrupt has been fully handled and can be EOId
222 * FILTER_SCHEDULE_THREAD - the threaded interrupt handler should be
223 * scheduled to execute
224 *
225 * If the driver does not provide a filter, then the interrupt code will
226 * act is if the filter had returned FILTER_SCHEDULE_THREAD. Note that it
227 * is illegal to specify any other flag with FILTER_STRAY and that it is
228 * illegal to not specify either of FILTER_HANDLED or FILTER_SCHEDULE_THREAD
229 * if FILTER_STRAY is not specified.
230 */
231#define FILTER_STRAY 0x01
232#define FILTER_HANDLED 0x02
233#define FILTER_SCHEDULE_THREAD 0x04
234
235/**
236 * @brief Driver interrupt service routines
237 *
238 * The filter routine is run in primary interrupt context and may not
239 * block or use regular mutexes. It may only use spin mutexes for
240 * synchronization. The filter may either completely handle the
241 * interrupt or it may perform some of the work and defer more
242 * expensive work to the regular interrupt handler. If a filter
243 * routine is not registered by the driver, then the regular interrupt
244 * handler is always used to handle interrupts from this device.
245 *
246 * The regular interrupt handler executes in its own thread context
247 * and may use regular mutexes. However, it is prohibited from
248 * sleeping on a sleep queue.
249 */
250typedef int driver_filter_t(void*);
251typedef void driver_intr_t(void*);
252
253/**
254 * @brief Interrupt type bits.
255 *
256 * These flags may be passed by drivers to bus_setup_intr(9) when
257 * registering a new interrupt handler. The field is overloaded to
258 * specify both the interrupt's type and any special properties.
259 *
260 * The INTR_TYPE* bits will be passed to intr_priority(9) to determine
261 * the scheduling priority of the handler's ithread. Historically, each
262 * type was assigned a unique scheduling preference, but now only
263 * INTR_TYPE_CLK receives a default priority higher than other
264 * interrupts. See sys/priority.h.
265 *
266 * Buses may choose to modify or augment these flags as appropriate,
267 * e.g. nexus may apply INTR_EXCL.
268 */
269enum intr_type {
270 INTR_TYPE_TTY = 1,
271 INTR_TYPE_BIO = 2,
272 INTR_TYPE_NET = 4,
273 INTR_TYPE_CAM = 8,
274 INTR_TYPE_MISC = 16,
275 INTR_TYPE_CLK = 32,
276 INTR_TYPE_AV = 64,
277 INTR_EXCL = 256, /* exclusive interrupt */
278 INTR_MPSAFE = 512, /* this interrupt is SMP safe */
279 INTR_ENTROPY = 1024, /* this interrupt provides entropy */
280 INTR_SLEEPABLE = 2048, /* this interrupt handler can sleep */
281 INTR_MD1 = 4096, /* flag reserved for MD use */
282 INTR_MD2 = 8192, /* flag reserved for MD use */
283 INTR_MD3 = 16384, /* flag reserved for MD use */
284 INTR_MD4 = 32768 /* flag reserved for MD use */
285};
286
287enum intr_trigger {
288 INTR_TRIGGER_INVALID = -1,
289 INTR_TRIGGER_CONFORM = 0,
290 INTR_TRIGGER_EDGE = 1,
291 INTR_TRIGGER_LEVEL = 2
292};
293
294enum intr_polarity {
295 INTR_POLARITY_CONFORM = 0,
296 INTR_POLARITY_HIGH = 1,
297 INTR_POLARITY_LOW = 2
298};
299
300/**
301 * CPU sets supported by bus_get_cpus(). Note that not all sets may be
302 * supported for a given device. If a request is not supported by a
303 * device (or its parents), then bus_get_cpus() will fail with EINVAL.
304 */
305enum cpu_sets {
306 LOCAL_CPUS = 0,
307 INTR_CPUS
308};
309
310struct resource;
311
312/**
313 * @brief A resource mapping.
314 */
315struct resource_map {
316 bus_space_tag_t r_bustag;
317 bus_space_handle_t r_bushandle;
318 bus_size_t r_size;
319 void *r_vaddr;
320};
321
322/**
323 * @brief Optional properties of a resource mapping request.
324 */
325struct resource_map_request {
326 size_t size;
327 rman_res_t offset;
328 rman_res_t length;
329 vm_memattr_t memattr;
330};
331
332void resource_init_map_request_impl(struct resource_map_request *_args,
333 size_t _sz);
334#define resource_init_map_request(rmr) \
335 resource_init_map_request_impl((rmr), sizeof(*(rmr)))
336int resource_validate_map_request(struct resource *r,
337 struct resource_map_request *in, struct resource_map_request *out,
338 rman_res_t *startp, rman_res_t *lengthp);
339
340/*
341 * Definitions for drivers which need to keep simple lists of resources
342 * for their child devices.
343 */
344
345/**
346 * @brief An entry for a single resource in a resource list.
347 */
348struct resource_list_entry {
349 STAILQ_ENTRY(resource_list_entry) link;
350 int type; /**< @brief type argument to alloc_resource */
351 int rid; /**< @brief resource identifier */
352 int flags; /**< @brief resource flags */
353 struct resource *res; /**< @brief the real resource when allocated */
354 rman_res_t start; /**< @brief start of resource range */
355 rman_res_t end; /**< @brief end of resource range */
356 rman_res_t count; /**< @brief count within range */
357};
358STAILQ_HEAD(resource_list, resource_list_entry);
359
360#define RLE_RESERVED 0x0001 /* Reserved by the parent bus. */
361#define RLE_ALLOCATED 0x0002 /* Reserved resource is allocated. */
362#define RLE_PREFETCH 0x0004 /* Resource is a prefetch range. */
363
364void resource_list_init(struct resource_list *rl);
365void resource_list_free(struct resource_list *rl);
366struct resource_list_entry *
367 resource_list_add(struct resource_list *rl,
368 int type, int rid,
369 rman_res_t start, rman_res_t end, rman_res_t count);
370int resource_list_add_next(struct resource_list *rl,
371 int type,
372 rman_res_t start, rman_res_t end, rman_res_t count);
373int resource_list_busy(struct resource_list *rl,
374 int type, int rid);
375int resource_list_reserved(struct resource_list *rl, int type, int rid);
376struct resource_list_entry*
377 resource_list_find(struct resource_list *rl,
378 int type, int rid);
379void resource_list_delete(struct resource_list *rl,
380 int type, int rid);
381struct resource *
382 resource_list_alloc(struct resource_list *rl,
383 device_t bus, device_t child,
384 int type, int *rid,
385 rman_res_t start, rman_res_t end,
386 rman_res_t count, u_int flags);
387int resource_list_release(struct resource_list *rl,
388 device_t bus, device_t child,
389 struct resource *res);
390int resource_list_release_active(struct resource_list *rl,
391 device_t bus, device_t child,
392 int type);
393struct resource *
394 resource_list_reserve(struct resource_list *rl,
395 device_t bus, device_t child,
396 int type, int *rid,
397 rman_res_t start, rman_res_t end,
398 rman_res_t count, u_int flags);
399int resource_list_unreserve(struct resource_list *rl,
400 device_t bus, device_t child,
401 int type, int rid);
402void resource_list_purge(struct resource_list *rl);
403int resource_list_print_type(struct resource_list *rl,
404 const char *name, int type,
405 const char *format);
406
407/*
408 * The root bus, to which all top-level buses are attached.
409 */
410extern device_t root_bus;
411extern devclass_t root_devclass;
412void root_bus_configure(void);
413
414/*
415 * Useful functions for implementing buses.
416 */
417
418struct _cpuset;
419
420int bus_generic_activate_resource(device_t dev, device_t child,
421 struct resource *r);
422device_t
423 bus_generic_add_child(device_t dev, u_int order, const char *name,
424 int unit);
425int bus_generic_adjust_resource(device_t bus, device_t child,
426 struct resource *r, rman_res_t start,
427 rman_res_t end);
428struct resource *
429 bus_generic_alloc_resource(device_t bus, device_t child, int type,
430 int *rid, rman_res_t start, rman_res_t end,
431 rman_res_t count, u_int flags);
432int bus_generic_translate_resource(device_t dev, int type, rman_res_t start,
433 rman_res_t *newstart);
434int bus_generic_attach(device_t dev)
435 __deprecated1("Use bus_attach_children instead");
436int bus_generic_bind_intr(device_t dev, device_t child,
437 struct resource *irq, int cpu);
438int bus_generic_child_location(device_t dev, device_t child, struct sbuf *sb);
439int bus_generic_child_pnpinfo(device_t dev, device_t child, struct sbuf *sb);
440int bus_generic_child_present(device_t dev, device_t child);
441int bus_generic_config_intr(device_t, int, enum intr_trigger,
442 enum intr_polarity);
443int bus_generic_describe_intr(device_t dev, device_t child,
444 struct resource *irq, void *cookie,
445 const char *descr);
446int bus_generic_deactivate_resource(device_t dev, device_t child,
447 struct resource *r);
448int bus_generic_detach(device_t dev);
449void bus_generic_driver_added(device_t dev, driver_t *driver);
450int bus_generic_get_cpus(device_t dev, device_t child, enum cpu_sets op,
451 size_t setsize, struct _cpuset *cpuset);
452bus_dma_tag_t
453 bus_generic_get_dma_tag(device_t dev, device_t child);
454bus_space_tag_t
455 bus_generic_get_bus_tag(device_t dev, device_t child);
456int bus_generic_get_domain(device_t dev, device_t child, int *domain);
457ssize_t bus_generic_get_property(device_t dev, device_t child,
458 const char *propname, void *propvalue,
459 size_t size, device_property_type_t type);
460int bus_generic_map_resource(device_t dev, device_t child,
461 struct resource *r,
462 struct resource_map_request *args,
463 struct resource_map *map);
464void bus_generic_new_pass(device_t dev);
465int bus_print_child_header(device_t dev, device_t child);
466int bus_print_child_domain(device_t dev, device_t child);
467int bus_print_child_footer(device_t dev, device_t child);
468int bus_generic_print_child(device_t dev, device_t child);
469int bus_generic_probe(device_t dev)
470 __deprecated1("Use bus_identify_children instead");
471int bus_generic_read_ivar(device_t dev, device_t child, int which,
472 uintptr_t *result);
473int bus_generic_release_resource(device_t bus, device_t child,
474 struct resource *r);
475int bus_generic_resume(device_t dev);
476int bus_generic_resume_child(device_t dev, device_t child);
477int bus_generic_setup_intr(device_t dev, device_t child,
478 struct resource *irq, int flags,
479 driver_filter_t *filter, driver_intr_t *intr,
480 void *arg, void **cookiep);
481
482struct resource *
483 bus_generic_rl_alloc_resource (device_t, device_t, int, int *,
484 rman_res_t, rman_res_t, rman_res_t, u_int);
485void bus_generic_rl_delete_resource (device_t, device_t, int, int);
486int bus_generic_rl_get_resource (device_t, device_t, int, int, rman_res_t *,
487 rman_res_t *);
488int bus_generic_rl_set_resource (device_t, device_t, int, int, rman_res_t,
489 rman_res_t);
490int bus_generic_rl_release_resource (device_t, device_t, struct resource *);
491struct resource *
492 bus_generic_rman_alloc_resource(device_t dev, device_t child, int type,
493 int *rid, rman_res_t start,
494 rman_res_t end, rman_res_t count,
495 u_int flags);
496int bus_generic_rman_adjust_resource(device_t dev, device_t child,
497 struct resource *r, rman_res_t start,
498 rman_res_t end);
499int bus_generic_rman_release_resource(device_t dev, device_t child,
500 struct resource *r);
501int bus_generic_rman_activate_resource(device_t dev, device_t child,
502 struct resource *r);
503int bus_generic_rman_deactivate_resource(device_t dev, device_t child,
504 struct resource *r);
505
506int bus_generic_shutdown(device_t dev);
507int bus_generic_suspend(device_t dev);
508int bus_generic_suspend_child(device_t dev, device_t child);
509int bus_generic_teardown_intr(device_t dev, device_t child,
510 struct resource *irq, void *cookie);
511int bus_generic_suspend_intr(device_t dev, device_t child,
512 struct resource *irq);
513int bus_generic_resume_intr(device_t dev, device_t child,
514 struct resource *irq);
515int bus_generic_unmap_resource(device_t dev, device_t child,
516 struct resource *r,
517 struct resource_map *map);
518int bus_generic_write_ivar(device_t dev, device_t child, int which,
519 uintptr_t value);
520int bus_generic_get_device_path(device_t bus, device_t child, const char *locator,
521 struct sbuf *sb);
522int bus_helper_reset_post(device_t dev, int flags);
523int bus_helper_reset_prepare(device_t dev, int flags);
524int bus_null_rescan(device_t dev);
525
526/*
527 * Wrapper functions for the BUS_*_RESOURCE methods to make client code
528 * a little simpler.
529 */
530
531struct resource_spec {
532 int type;
533 int rid;
534 int flags;
535};
536#define RESOURCE_SPEC_END {-1, 0, 0}
537
538int bus_alloc_resources(device_t dev, struct resource_spec *rs,
539 struct resource **res);
540void bus_release_resources(device_t dev, const struct resource_spec *rs,
541 struct resource **res);
542
543int bus_adjust_resource(device_t child, struct resource *r,
544 rman_res_t start, rman_res_t end);
545int bus_translate_resource(device_t child, int type, rman_res_t start,
546 rman_res_t *newstart);
547struct resource *bus_alloc_resource(device_t dev, int type, int *rid,
548 rman_res_t start, rman_res_t end,
549 rman_res_t count, u_int flags);
550int bus_activate_resource(device_t dev, struct resource *r);
551int bus_deactivate_resource(device_t dev, struct resource *r);
552int bus_map_resource(device_t dev, struct resource *r,
553 struct resource_map_request *args,
554 struct resource_map *map);
555int bus_unmap_resource(device_t dev, struct resource *r,
556 struct resource_map *map);
557int bus_get_cpus(device_t dev, enum cpu_sets op, size_t setsize,
558 struct _cpuset *cpuset);
559bus_dma_tag_t bus_get_dma_tag(device_t dev);
560bus_space_tag_t bus_get_bus_tag(device_t dev);
561int bus_get_domain(device_t dev, int *domain);
562int bus_release_resource(device_t dev, struct resource *r);
563int bus_free_resource(device_t dev, int type, struct resource *r);
564int bus_setup_intr(device_t dev, struct resource *r, int flags,
565 driver_filter_t filter, driver_intr_t handler,
566 void *arg, void **cookiep);
567int bus_teardown_intr(device_t dev, struct resource *r, void *cookie);
568int bus_suspend_intr(device_t dev, struct resource *r);
569int bus_resume_intr(device_t dev, struct resource *r);
570int bus_bind_intr(device_t dev, struct resource *r, int cpu);
571int bus_describe_intr(device_t dev, struct resource *irq, void *cookie,
572 const char *fmt, ...) __printflike(4, 5);
573int bus_set_resource(device_t dev, int type, int rid,
574 rman_res_t start, rman_res_t count);
575int bus_get_resource(device_t dev, int type, int rid,
576 rman_res_t *startp, rman_res_t *countp);
577rman_res_t bus_get_resource_start(device_t dev, int type, int rid);
578rman_res_t bus_get_resource_count(device_t dev, int type, int rid);
579void bus_delete_resource(device_t dev, int type, int rid);
580int bus_child_present(device_t child);
581int bus_child_pnpinfo(device_t child, struct sbuf *sb);
582int bus_child_location(device_t child, struct sbuf *sb);
583
584void bus_attach_children(device_t dev);
585void bus_delayed_attach_children(device_t bus);
586int bus_detach_children(device_t dev);
587void bus_enumerate_hinted_children(device_t bus);
588void bus_identify_children(device_t dev);
589
590static __inline struct resource *
591bus_alloc_resource_any(device_t dev, int type, int *rid, u_int flags)
592{
593 return (bus_alloc_resource(dev, type, rid, 0, ~0, 1, flags));
594}
595
596static __inline struct resource *
597bus_alloc_resource_anywhere(device_t dev, int type, int *rid,
598 rman_res_t count, u_int flags)
599{
600 return (bus_alloc_resource(dev, type, rid, 0, ~0, count, flags));
601}
602
603/* Compat shims for simpler bus resource API. */
604int bus_adjust_resource_old(device_t child, int type, struct resource *r,
605 rman_res_t start, rman_res_t end);
606int bus_activate_resource_old(device_t dev, int type, int rid,
607 struct resource *r);
608int bus_deactivate_resource_old(device_t dev, int type, int rid,
609 struct resource *r);
610int bus_map_resource_old(device_t dev, int type, struct resource *r,
611 struct resource_map_request *args,
612 struct resource_map *map);
613int bus_unmap_resource_old(device_t dev, int type, struct resource *r,
614 struct resource_map *map);
615int bus_release_resource_old(device_t dev, int type, int rid,
616 struct resource *r);
617
618#define _BUS_API_MACRO(_1, _2, _3, _4, _5, NAME, ...) NAME
619
620#define bus_adjust_resource(...) \
621 _BUS_API_MACRO(__VA_ARGS__, bus_adjust_resource_old, \
622 bus_adjust_resource)(__VA_ARGS__)
623
624#define bus_activate_resource(...) \
625 _BUS_API_MACRO(__VA_ARGS__, INVALID, bus_activate_resource_old, \
626 INVALID, bus_activate_resource)(__VA_ARGS__)
627
628#define bus_deactivate_resource(...) \
629 _BUS_API_MACRO(__VA_ARGS__, INVALID, bus_deactivate_resource_old, \
630 INVALID, bus_deactivate_resource)(__VA_ARGS__)
631
632#define bus_map_resource(...) \
633 _BUS_API_MACRO(__VA_ARGS__, bus_map_resource_old, \
634 bus_map_resource)(__VA_ARGS__)
635
636#define bus_unmap_resource(...) \
637 _BUS_API_MACRO(__VA_ARGS__, INVALID, bus_unmap_resource_old, \
638 bus_unmap_resource)(__VA_ARGS__)
639
640#define bus_release_resource(...) \
641 _BUS_API_MACRO(__VA_ARGS__, INVALID, bus_release_resource_old, \
642 INVALID, bus_release_resource)(__VA_ARGS__)
643
644/*
645 * Access functions for device.
646 */
647device_t device_add_child(device_t dev, const char *name, int unit);
648device_t device_add_child_ordered(device_t dev, u_int order,
649 const char *name, int unit);
650void device_busy(device_t dev);
651int device_delete_child(device_t dev, device_t child);
652int device_delete_children(device_t dev);
653int device_attach(device_t dev);
654int device_detach(device_t dev);
655void device_disable(device_t dev);
656void device_enable(device_t dev);
657device_t device_find_child(device_t dev, const char *classname,
658 int unit);
659const char *device_get_desc(device_t dev);
660devclass_t device_get_devclass(device_t dev);
661driver_t *device_get_driver(device_t dev);
662u_int32_t device_get_flags(device_t dev);
663device_t device_get_parent(device_t dev);
664int device_get_children(device_t dev, device_t **listp, int *countp);
665void *device_get_ivars(device_t dev);
666void device_set_ivars(device_t dev, void *ivars);
667const char *device_get_name(device_t dev);
668const char *device_get_nameunit(device_t dev);
669void *device_get_softc(device_t dev);
670device_state_t device_get_state(device_t dev);
671int device_get_unit(device_t dev);
672struct sysctl_ctx_list *device_get_sysctl_ctx(device_t dev);
673struct sysctl_oid *device_get_sysctl_tree(device_t dev);
674int device_has_quiet_children(device_t dev);
675int device_is_alive(device_t dev); /* did probe succeed? */
676int device_is_attached(device_t dev); /* did attach succeed? */
677int device_is_enabled(device_t dev);
678int device_is_suspended(device_t dev);
679int device_is_quiet(device_t dev);
680device_t device_lookup_by_name(const char *name);
681int device_print_prettyname(device_t dev);
682int device_printf(device_t dev, const char *, ...) __printflike(2, 3);
683int device_log(device_t dev, int pri, const char *, ...) __printflike(3, 4);
684int device_probe(device_t dev);
685int device_probe_and_attach(device_t dev);
686int device_probe_child(device_t bus, device_t dev);
687int device_quiesce(device_t dev);
688void device_quiet(device_t dev);
689void device_quiet_children(device_t dev);
690void device_set_desc(device_t dev, const char* desc);
691void device_set_descf(device_t dev, const char* fmt, ...) __printflike(2, 3);
692void device_set_desc_copy(device_t dev, const char* desc);
693int device_set_devclass(device_t dev, const char *classname);
694int device_set_devclass_fixed(device_t dev, const char *classname);
695bool device_is_devclass_fixed(device_t dev);
696int device_set_driver(device_t dev, driver_t *driver);
697void device_set_flags(device_t dev, u_int32_t flags);
698void device_set_softc(device_t dev, void *softc);
699void device_free_softc(void *softc);
700void device_claim_softc(device_t dev);
701int device_set_unit(device_t dev, int unit); /* XXX DONT USE XXX */
702int device_shutdown(device_t dev);
703void device_unbusy(device_t dev);
704void device_verbose(device_t dev);
705ssize_t device_get_property(device_t dev, const char *prop, void *val,
706 size_t sz, device_property_type_t type);
707bool device_has_property(device_t dev, const char *prop);
708
709/*
710 * Access functions for devclass.
711 */
712int devclass_add_driver(devclass_t dc, driver_t *driver,
713 int pass, devclass_t *dcp);
714devclass_t devclass_create(const char *classname);
715int devclass_delete_driver(devclass_t busclass, driver_t *driver);
716devclass_t devclass_find(const char *classname);
717const char *devclass_get_name(devclass_t dc);
718device_t devclass_get_device(devclass_t dc, int unit);
719void *devclass_get_softc(devclass_t dc, int unit);
720int devclass_get_devices(devclass_t dc, device_t **listp, int *countp);
721int devclass_get_drivers(devclass_t dc, driver_t ***listp, int *countp);
722int devclass_get_count(devclass_t dc);
723int devclass_get_maxunit(devclass_t dc);
724int devclass_find_free_unit(devclass_t dc, int unit);
725void devclass_set_parent(devclass_t dc, devclass_t pdc);
726devclass_t devclass_get_parent(devclass_t dc);
727struct sysctl_ctx_list *devclass_get_sysctl_ctx(devclass_t dc);
728struct sysctl_oid *devclass_get_sysctl_tree(devclass_t dc);
729
730/*
731 * Access functions for device resources.
732 */
733int resource_int_value(const char *name, int unit, const char *resname,
734 int *result);
735int resource_long_value(const char *name, int unit, const char *resname,
736 long *result);
737int resource_string_value(const char *name, int unit, const char *resname,
738 const char **result);
739int resource_disabled(const char *name, int unit);
740int resource_find_match(int *anchor, const char **name, int *unit,
741 const char *resname, const char *value);
742int resource_find_dev(int *anchor, const char *name, int *unit,
743 const char *resname, const char *value);
744int resource_unset_value(const char *name, int unit, const char *resname);
745
746/*
747 * Functions for maintaining and checking consistency of
748 * bus information exported to userspace.
749 */
750int bus_data_generation_check(int generation);
751void bus_data_generation_update(void);
752
753/**
754 * Some convenience defines for probe routines to return. These are just
755 * suggested values, and there's nothing magical about them.
756 * BUS_PROBE_SPECIFIC is for devices that cannot be reprobed, and that no
757 * possible other driver may exist (typically legacy drivers who don't follow
758 * all the rules, or special needs drivers). BUS_PROBE_VENDOR is the
759 * suggested value that vendor supplied drivers use. This is for source or
760 * binary drivers that are not yet integrated into the FreeBSD tree. Its use
761 * in the base OS is prohibited. BUS_PROBE_DEFAULT is the normal return value
762 * for drivers to use. It is intended that nearly all of the drivers in the
763 * tree should return this value. BUS_PROBE_LOW_PRIORITY are for drivers that
764 * have special requirements like when there are two drivers that support
765 * overlapping series of hardware devices. In this case the one that supports
766 * the older part of the line would return this value, while the one that
767 * supports the newer ones would return BUS_PROBE_DEFAULT. BUS_PROBE_GENERIC
768 * is for drivers that wish to have a generic form and a specialized form,
769 * like is done with the pci bus and the acpi pci bus. BUS_PROBE_HOOVER is
770 * for those buses that implement a generic device placeholder for devices on
771 * the bus that have no more specific driver for them (aka ugen).
772 * BUS_PROBE_NOWILDCARD or lower means that the device isn't really bidding
773 * for a device node, but accepts only devices that its parent has told it
774 * use this driver.
775 */
776#define BUS_PROBE_SPECIFIC 0 /* Only I can use this device */
777#define BUS_PROBE_VENDOR (-10) /* Vendor supplied driver */
778#define BUS_PROBE_DEFAULT (-20) /* Base OS default driver */
779#define BUS_PROBE_LOW_PRIORITY (-40) /* Older, less desirable drivers */
780#define BUS_PROBE_GENERIC (-100) /* generic driver for dev */
781#define BUS_PROBE_HOOVER (-1000000) /* Driver for any dev on bus */
782#define BUS_PROBE_NOWILDCARD (-2000000000) /* No wildcard device matches */
783
784/**
785 * During boot, the device tree is scanned multiple times. Each scan,
786 * or pass, drivers may be attached to devices. Each driver
787 * attachment is assigned a pass number. Drivers may only probe and
788 * attach to devices if their pass number is less than or equal to the
789 * current system-wide pass number. The default pass is the last pass
790 * and is used by most drivers. Drivers needed by the scheduler are
791 * probed in earlier passes.
792 */
793#define BUS_PASS_ROOT 0 /* Used to attach root0. */
794#define BUS_PASS_BUS 10 /* Buses and bridges. */
795#define BUS_PASS_CPU 20 /* CPU devices. */
796#define BUS_PASS_RESOURCE 30 /* Resource discovery. */
797#define BUS_PASS_INTERRUPT 40 /* Interrupt controllers. */
798#define BUS_PASS_TIMER 50 /* Timers and clocks. */
799#define BUS_PASS_SCHEDULER 60 /* Start scheduler. */
800#define BUS_PASS_SUPPORTDEV 100000 /* Drivers which support DEFAULT drivers. */
801#define BUS_PASS_DEFAULT __INT_MAX /* Everything else. */
802
803#define BUS_PASS_ORDER_FIRST 0
804#define BUS_PASS_ORDER_EARLY 2
805#define BUS_PASS_ORDER_MIDDLE 5
806#define BUS_PASS_ORDER_LATE 7
807#define BUS_PASS_ORDER_LAST 9
808
809#define BUS_LOCATOR_ACPI "ACPI"
810#define BUS_LOCATOR_FREEBSD "FreeBSD"
811#define BUS_LOCATOR_UEFI "UEFI"
812#define BUS_LOCATOR_OFW "OFW"
813
814int bus_get_pass(void);
815
816/**
817 * Routines to lock / unlock the newbus lock.
818 * Must be taken out to interact with newbus.
819 */
820void bus_topo_lock(void);
821void bus_topo_unlock(void);
822struct mtx * bus_topo_mtx(void);
823void bus_topo_assert(void);
824
825/**
826 * Shorthands for constructing method tables.
827 */
828#define DEVMETHOD KOBJMETHOD
829#define DEVMETHOD_END KOBJMETHOD_END
830
831/*
832 * Some common device interfaces.
833 */
834#include "device_if.h"
835#include "bus_if.h"
836
837struct module;
838
839int driver_module_handler(struct module *, int, void *);
840
841/**
842 * Module support for automatically adding drivers to buses.
843 */
844struct driver_module_data {
845 int (*dmd_chainevh)(struct module *, int, void *);
846 void *dmd_chainarg;
847 const char *dmd_busname;
848 kobj_class_t dmd_driver;
849 devclass_t *dmd_devclass;
850 int dmd_pass;
851};
852
853#define EARLY_DRIVER_MODULE_ORDERED(_name, busname, driver, evh, arg, \
854 order, pass) \
855 \
856static struct driver_module_data _name##_##busname##_driver_mod = { \
857 .dmd_chainevh = evh, \
858 .dmd_chainarg = arg, \
859 .dmd_busname = #busname, \
860 .dmd_driver = (kobj_class_t)&driver, \
861 .dmd_devclass = NULL, \
862 .dmd_pass = pass, \
863}; \
864 \
865static moduledata_t _name##_##busname##_mod = { \
866 .name = #busname "/" #_name , \
867 .evhand = driver_module_handler, \
868 .priv = &_name##_##busname##_driver_mod, \
869}; \
870DECLARE_MODULE(_name##_##busname, _name##_##busname##_mod, \
871 SI_SUB_DRIVERS, order)
872
873#define EARLY_DRIVER_MODULE(name, busname, driver, evh, arg, pass) \
874 EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, \
875 SI_ORDER_MIDDLE, pass)
876
877#define DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, order) \
878 EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, \
879 order, BUS_PASS_DEFAULT)
880
881#define DRIVER_MODULE(name, busname, driver, evh, arg) \
882 EARLY_DRIVER_MODULE(name, busname, driver, evh, arg, \
883 BUS_PASS_DEFAULT)
884
885/**
886 * Generic ivar accessor generation macros for bus drivers
887 */
888#define __BUS_ACCESSOR(varp, var, ivarp, ivar, type) \
889 \
890static __inline type varp ## _get_ ## var(device_t dev) \
891{ \
892 uintptr_t v; \
893 int e __diagused; \
894 e = BUS_READ_IVAR(device_get_parent(dev), dev, \
895 ivarp ## _IVAR_ ## ivar, &v); \
896 KASSERT(e == 0, ("%s failed for %s on bus %s, error = %d", \
897 __func__, device_get_nameunit(dev), \
898 device_get_nameunit(device_get_parent(dev)), e)); \
899 return ((type) v); \
900} \
901 \
902static __inline void varp ## _set_ ## var(device_t dev, type t) \
903{ \
904 uintptr_t v = (uintptr_t) t; \
905 int e __diagused; \
906 e = BUS_WRITE_IVAR(device_get_parent(dev), dev, \
907 ivarp ## _IVAR_ ## ivar, v); \
908 KASSERT(e == 0, ("%s failed for %s on bus %s, error = %d", \
909 __func__, device_get_nameunit(dev), \
910 device_get_nameunit(device_get_parent(dev)), e)); \
911}
912
913struct device_location_cache;
914typedef struct device_location_cache device_location_cache_t;
915device_location_cache_t *dev_wired_cache_init(void);
916void dev_wired_cache_fini(device_location_cache_t *dcp);
917bool dev_wired_cache_match(device_location_cache_t *dcp, device_t dev, const char *at);
918
919#define DEV_PROP_NAME_IOMMU "iommu-unit"
920typedef void (*device_prop_dtr_t)(device_t dev, const char *name, void *val,
921 void *dtr_ctx);
922int device_set_prop(device_t dev, const char *name, void *val,
923 device_prop_dtr_t dtr, void *dtr_ctx);
924int device_get_prop(device_t dev, const char *name, void **valp);
925int device_clear_prop(device_t dev, const char *name);
926void device_clear_prop_alldev(const char *name);
927
928/**
929 * Shorthand macros, taking resource argument
930 * Generated with sys/tools/bus_macro.sh
931 */
932
933#define bus_barrier(r, o, l, f) \
934 bus_space_barrier((r)->r_bustag, (r)->r_bushandle, (o), (l), (f))
935#define bus_poke_1(r, o, v) \
936 bus_space_poke_1((r)->r_bustag, (r)->r_bushandle, (o), (v))
937#define bus_peek_1(r, o, vp) \
938 bus_space_peek_1((r)->r_bustag, (r)->r_bushandle, (o), (vp))
939#define bus_read_1(r, o) \
940 bus_space_read_1((r)->r_bustag, (r)->r_bushandle, (o))
941#define bus_read_multi_1(r, o, d, c) \
942 bus_space_read_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
943#define bus_read_region_1(r, o, d, c) \
944 bus_space_read_region_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
945#define bus_set_multi_1(r, o, v, c) \
946 bus_space_set_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
947#define bus_set_region_1(r, o, v, c) \
948 bus_space_set_region_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
949#define bus_write_1(r, o, v) \
950 bus_space_write_1((r)->r_bustag, (r)->r_bushandle, (o), (v))
951#define bus_write_multi_1(r, o, d, c) \
952 bus_space_write_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
953#define bus_write_region_1(r, o, d, c) \
954 bus_space_write_region_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
955#define bus_read_stream_1(r, o) \
956 bus_space_read_stream_1((r)->r_bustag, (r)->r_bushandle, (o))
957#define bus_read_multi_stream_1(r, o, d, c) \
958 bus_space_read_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
959#define bus_read_region_stream_1(r, o, d, c) \
960 bus_space_read_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
961#define bus_set_multi_stream_1(r, o, v, c) \
962 bus_space_set_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
963#define bus_set_region_stream_1(r, o, v, c) \
964 bus_space_set_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
965#define bus_write_stream_1(r, o, v) \
966 bus_space_write_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v))
967#define bus_write_multi_stream_1(r, o, d, c) \
968 bus_space_write_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
969#define bus_write_region_stream_1(r, o, d, c) \
970 bus_space_write_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
971#define bus_poke_2(r, o, v) \
972 bus_space_poke_2((r)->r_bustag, (r)->r_bushandle, (o), (v))
973#define bus_peek_2(r, o, vp) \
974 bus_space_peek_2((r)->r_bustag, (r)->r_bushandle, (o), (vp))
975#define bus_read_2(r, o) \
976 bus_space_read_2((r)->r_bustag, (r)->r_bushandle, (o))
977#define bus_read_multi_2(r, o, d, c) \
978 bus_space_read_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
979#define bus_read_region_2(r, o, d, c) \
980 bus_space_read_region_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
981#define bus_set_multi_2(r, o, v, c) \
982 bus_space_set_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
983#define bus_set_region_2(r, o, v, c) \
984 bus_space_set_region_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
985#define bus_write_2(r, o, v) \
986 bus_space_write_2((r)->r_bustag, (r)->r_bushandle, (o), (v))
987#define bus_write_multi_2(r, o, d, c) \
988 bus_space_write_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
989#define bus_write_region_2(r, o, d, c) \
990 bus_space_write_region_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
991#define bus_read_stream_2(r, o) \
992 bus_space_read_stream_2((r)->r_bustag, (r)->r_bushandle, (o))
993#define bus_read_multi_stream_2(r, o, d, c) \
994 bus_space_read_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
995#define bus_read_region_stream_2(r, o, d, c) \
996 bus_space_read_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
997#define bus_set_multi_stream_2(r, o, v, c) \
998 bus_space_set_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
999#define bus_set_region_stream_2(r, o, v, c) \
1000 bus_space_set_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1001#define bus_write_stream_2(r, o, v) \
1002 bus_space_write_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v))
1003#define bus_write_multi_stream_2(r, o, d, c) \
1004 bus_space_write_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1005#define bus_write_region_stream_2(r, o, d, c) \
1006 bus_space_write_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1007#define bus_poke_4(r, o, v) \
1008 bus_space_poke_4((r)->r_bustag, (r)->r_bushandle, (o), (v))
1009#define bus_peek_4(r, o, vp) \
1010 bus_space_peek_4((r)->r_bustag, (r)->r_bushandle, (o), (vp))
1011#define bus_read_4(r, o) \
1012 bus_space_read_4((r)->r_bustag, (r)->r_bushandle, (o))
1013#define bus_read_multi_4(r, o, d, c) \
1014 bus_space_read_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1015#define bus_read_region_4(r, o, d, c) \
1016 bus_space_read_region_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1017#define bus_set_multi_4(r, o, v, c) \
1018 bus_space_set_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1019#define bus_set_region_4(r, o, v, c) \
1020 bus_space_set_region_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1021#define bus_write_4(r, o, v) \
1022 bus_space_write_4((r)->r_bustag, (r)->r_bushandle, (o), (v))
1023#define bus_write_multi_4(r, o, d, c) \
1024 bus_space_write_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1025#define bus_write_region_4(r, o, d, c) \
1026 bus_space_write_region_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1027#define bus_read_stream_4(r, o) \
1028 bus_space_read_stream_4((r)->r_bustag, (r)->r_bushandle, (o))
1029#define bus_read_multi_stream_4(r, o, d, c) \
1030 bus_space_read_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1031#define bus_read_region_stream_4(r, o, d, c) \
1032 bus_space_read_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1033#define bus_set_multi_stream_4(r, o, v, c) \
1034 bus_space_set_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1035#define bus_set_region_stream_4(r, o, v, c) \
1036 bus_space_set_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1037#define bus_write_stream_4(r, o, v) \
1038 bus_space_write_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v))
1039#define bus_write_multi_stream_4(r, o, d, c) \
1040 bus_space_write_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1041#define bus_write_region_stream_4(r, o, d, c) \
1042 bus_space_write_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1043#define bus_poke_8(r, o, v) \
1044 bus_space_poke_8((r)->r_bustag, (r)->r_bushandle, (o), (v))
1045#define bus_peek_8(r, o, vp) \
1046 bus_space_peek_8((r)->r_bustag, (r)->r_bushandle, (o), (vp))
1047#define bus_read_8(r, o) \
1048 bus_space_read_8((r)->r_bustag, (r)->r_bushandle, (o))
1049#define bus_read_multi_8(r, o, d, c) \
1050 bus_space_read_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1051#define bus_read_region_8(r, o, d, c) \
1052 bus_space_read_region_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1053#define bus_set_multi_8(r, o, v, c) \
1054 bus_space_set_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1055#define bus_set_region_8(r, o, v, c) \
1056 bus_space_set_region_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1057#define bus_write_8(r, o, v) \
1058 bus_space_write_8((r)->r_bustag, (r)->r_bushandle, (o), (v))
1059#define bus_write_multi_8(r, o, d, c) \
1060 bus_space_write_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1061#define bus_write_region_8(r, o, d, c) \
1062 bus_space_write_region_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1063#define bus_read_stream_8(r, o) \
1064 bus_space_read_stream_8((r)->r_bustag, (r)->r_bushandle, (o))
1065#define bus_read_multi_stream_8(r, o, d, c) \
1066 bus_space_read_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1067#define bus_read_region_stream_8(r, o, d, c) \
1068 bus_space_read_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1069#define bus_set_multi_stream_8(r, o, v, c) \
1070 bus_space_set_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1071#define bus_set_region_stream_8(r, o, v, c) \
1072 bus_space_set_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1073#define bus_write_stream_8(r, o, v) \
1074 bus_space_write_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v))
1075#define bus_write_multi_stream_8(r, o, d, c) \
1076 bus_space_write_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1077#define bus_write_region_stream_8(r, o, d, c) \
1078 bus_space_write_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1079#endif /* _KERNEL */
1080
1081#endif /* !_SYS_BUS_H_ */