FreeBSD/Linux Kernel Cross Reference
sys/sys/bus.h
1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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 * $FreeBSD$
29 */
30
31 #ifndef _SYS_BUS_H_
32 #define _SYS_BUS_H_
33
34 #include <machine/_limits.h>
35 #include <machine/_bus.h>
36 #include <sys/_bus_dma.h>
37 #include <sys/ioccom.h>
38
39 /**
40 * @defgroup NEWBUS newbus - a generic framework for managing devices
41 * @{
42 */
43
44 /**
45 * @brief Interface information structure.
46 */
47 struct u_businfo {
48 int ub_version; /**< @brief interface version */
49 #define BUS_USER_VERSION 2
50 int ub_generation; /**< @brief generation count */
51 };
52
53 /**
54 * @brief State of the device.
55 */
56 typedef enum device_state {
57 DS_NOTPRESENT = 10, /**< @brief not probed or probe failed */
58 DS_ALIVE = 20, /**< @brief probe succeeded */
59 DS_ATTACHING = 25, /**< @brief currently attaching */
60 DS_ATTACHED = 30, /**< @brief attach method called */
61 } device_state_t;
62
63 /**
64 * @brief Device proprty types.
65 *
66 * Those are used by bus logic to encode requested properties,
67 * e.g. in DT all properties are stored as BE and need to be converted
68 * to host endianness.
69 */
70 typedef enum device_property_type {
71 DEVICE_PROP_ANY = 0,
72 DEVICE_PROP_BUFFER = 1,
73 DEVICE_PROP_UINT32 = 2,
74 DEVICE_PROP_UINT64 = 3,
75 DEVICE_PROP_HANDLE = 4,
76 } device_property_type_t;
77
78 /**
79 * @brief Device information exported to userspace.
80 * The strings are placed one after the other, separated by NUL characters.
81 * Fields should be added after the last one and order maintained for compatibility
82 */
83 #define BUS_USER_BUFFER (3*1024)
84 struct u_device {
85 uintptr_t dv_handle;
86 uintptr_t dv_parent;
87 uint32_t dv_devflags; /**< @brief API Flags for device */
88 uint16_t dv_flags; /**< @brief flags for dev state */
89 device_state_t dv_state; /**< @brief State of attachment */
90 char dv_fields[BUS_USER_BUFFER]; /**< @brief NUL terminated fields */
91 /* name (name of the device in tree) */
92 /* desc (driver description) */
93 /* drivername (Name of driver without unit number) */
94 /* pnpinfo (Plug and play information from bus) */
95 /* location (Location of device on parent */
96 /* NUL */
97 };
98
99 /* Flags exported via dv_flags. */
100 #define DF_ENABLED 0x01 /* device should be probed/attached */
101 #define DF_FIXEDCLASS 0x02 /* devclass specified at create time */
102 #define DF_WILDCARD 0x04 /* unit was originally wildcard */
103 #define DF_DESCMALLOCED 0x08 /* description was malloced */
104 #define DF_QUIET 0x10 /* don't print verbose attach message */
105 #define DF_DONENOMATCH 0x20 /* don't execute DEVICE_NOMATCH again */
106 #define DF_EXTERNALSOFTC 0x40 /* softc not allocated by us */
107 #define DF_SUSPENDED 0x100 /* Device is suspended. */
108 #define DF_QUIET_CHILDREN 0x200 /* Default to quiet for all my children */
109 #define DF_ATTACHED_ONCE 0x400 /* Has been attached at least once */
110 #define DF_NEEDNOMATCH 0x800 /* Has a pending NOMATCH event */
111
112 /**
113 * @brief Device request structure used for ioctl's.
114 *
115 * Used for ioctl's on /dev/devctl2. All device ioctl's
116 * must have parameter definitions which begin with dr_name.
117 */
118 struct devreq_buffer {
119 void *buffer;
120 size_t length;
121 };
122
123 struct devreq {
124 char dr_name[128];
125 int dr_flags; /* request-specific flags */
126 union {
127 struct devreq_buffer dru_buffer;
128 void *dru_data;
129 } dr_dru;
130 #define dr_buffer dr_dru.dru_buffer /* variable-sized buffer */
131 #define dr_data dr_dru.dru_data /* fixed-size buffer */
132 };
133
134 #define DEV_ATTACH _IOW('D', 1, struct devreq)
135 #define DEV_DETACH _IOW('D', 2, struct devreq)
136 #define DEV_ENABLE _IOW('D', 3, struct devreq)
137 #define DEV_DISABLE _IOW('D', 4, struct devreq)
138 #define DEV_SUSPEND _IOW('D', 5, struct devreq)
139 #define DEV_RESUME _IOW('D', 6, struct devreq)
140 #define DEV_SET_DRIVER _IOW('D', 7, struct devreq)
141 #define DEV_CLEAR_DRIVER _IOW('D', 8, struct devreq)
142 #define DEV_RESCAN _IOW('D', 9, struct devreq)
143 #define DEV_DELETE _IOW('D', 10, struct devreq)
144 #define DEV_FREEZE _IOW('D', 11, struct devreq)
145 #define DEV_THAW _IOW('D', 12, struct devreq)
146 #define DEV_RESET _IOW('D', 13, struct devreq)
147 #define DEV_GET_PATH _IOWR('D', 14, struct devreq)
148
149 /* Flags for DEV_DETACH and DEV_DISABLE. */
150 #define DEVF_FORCE_DETACH 0x0000001
151
152 /* Flags for DEV_SET_DRIVER. */
153 #define DEVF_SET_DRIVER_DETACH 0x0000001 /* Detach existing driver. */
154
155 /* Flags for DEV_CLEAR_DRIVER. */
156 #define DEVF_CLEAR_DRIVER_DETACH 0x0000001 /* Detach existing driver. */
157
158 /* Flags for DEV_DELETE. */
159 #define DEVF_FORCE_DELETE 0x0000001
160
161 /* Flags for DEV_RESET */
162 #define DEVF_RESET_DETACH 0x0000001 /* Detach drivers vs suspend
163 device */
164
165 #ifdef _KERNEL
166
167 #include <sys/_eventhandler.h>
168 #include <sys/kobj.h>
169 #include <sys/systm.h>
170 #include <sys/devctl.h>
171
172 /**
173 * Device name parsers. Hook to allow device enumerators to map
174 * scheme-specific names to a device.
175 */
176 typedef void (*dev_lookup_fn)(void *arg, const char *name,
177 device_t *result);
178 EVENTHANDLER_DECLARE(dev_lookup, dev_lookup_fn);
179
180 /**
181 * @brief A device driver.
182 *
183 * Provides an abstraction layer for driver dispatch.
184 */
185 typedef struct kobj_class driver_t;
186
187 /**
188 * @brief A device class
189 *
190 * The devclass object has two main functions in the system. The first
191 * is to manage the allocation of unit numbers for device instances
192 * and the second is to hold the list of device drivers for a
193 * particular bus type. Each devclass has a name and there cannot be
194 * two devclasses with the same name. This ensures that unique unit
195 * numbers are allocated to device instances.
196 *
197 * Drivers that support several different bus attachments (e.g. isa,
198 * pci, pccard) should all use the same devclass to ensure that unit
199 * numbers do not conflict.
200 *
201 * Each devclass may also have a parent devclass. This is used when
202 * searching for device drivers to allow a form of inheritance. When
203 * matching drivers with devices, first the driver list of the parent
204 * device's devclass is searched. If no driver is found in that list,
205 * the search continues in the parent devclass (if any).
206 */
207 typedef struct devclass *devclass_t;
208
209 /**
210 * @brief A device method
211 */
212 #define device_method_t kobj_method_t
213
214 /**
215 * @brief Driver interrupt filter return values
216 *
217 * If a driver provides an interrupt filter routine it must return an
218 * integer consisting of oring together zero or more of the following
219 * flags:
220 *
221 * FILTER_STRAY - this device did not trigger the interrupt
222 * FILTER_HANDLED - the interrupt has been fully handled and can be EOId
223 * FILTER_SCHEDULE_THREAD - the threaded interrupt handler should be
224 * scheduled to execute
225 *
226 * If the driver does not provide a filter, then the interrupt code will
227 * act is if the filter had returned FILTER_SCHEDULE_THREAD. Note that it
228 * is illegal to specify any other flag with FILTER_STRAY and that it is
229 * illegal to not specify either of FILTER_HANDLED or FILTER_SCHEDULE_THREAD
230 * if FILTER_STRAY is not specified.
231 */
232 #define FILTER_STRAY 0x01
233 #define FILTER_HANDLED 0x02
234 #define FILTER_SCHEDULE_THREAD 0x04
235
236 /**
237 * @brief Driver interrupt service routines
238 *
239 * The filter routine is run in primary interrupt context and may not
240 * block or use regular mutexes. It may only use spin mutexes for
241 * synchronization. The filter may either completely handle the
242 * interrupt or it may perform some of the work and defer more
243 * expensive work to the regular interrupt handler. If a filter
244 * routine is not registered by the driver, then the regular interrupt
245 * handler is always used to handle interrupts from this device.
246 *
247 * The regular interrupt handler executes in its own thread context
248 * and may use regular mutexes. However, it is prohibited from
249 * sleeping on a sleep queue.
250 */
251 typedef int driver_filter_t(void*);
252 typedef void driver_intr_t(void*);
253
254 /**
255 * @brief Interrupt type bits.
256 *
257 * These flags may be passed by drivers to bus_setup_intr(9) when
258 * registering a new interrupt handler. The field is overloaded to
259 * specify both the interrupt's type and any special properties.
260 *
261 * The INTR_TYPE* bits will be passed to intr_priority(9) to determine
262 * the scheduling priority of the handler's ithread. Historically, each
263 * type was assigned a unique scheduling preference, but now only
264 * INTR_TYPE_CLK receives a default priority higher than other
265 * interrupts. See sys/priority.h.
266 *
267 * Buses may choose to modify or augment these flags as appropriate,
268 * e.g. nexus may apply INTR_EXCL.
269 */
270 enum intr_type {
271 INTR_TYPE_TTY = 1,
272 INTR_TYPE_BIO = 2,
273 INTR_TYPE_NET = 4,
274 INTR_TYPE_CAM = 8,
275 INTR_TYPE_MISC = 16,
276 INTR_TYPE_CLK = 32,
277 INTR_TYPE_AV = 64,
278 INTR_EXCL = 256, /* exclusive interrupt */
279 INTR_MPSAFE = 512, /* this interrupt is SMP safe */
280 INTR_ENTROPY = 1024, /* this interrupt provides entropy */
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
287 enum intr_trigger {
288 INTR_TRIGGER_INVALID = -1,
289 INTR_TRIGGER_CONFORM = 0,
290 INTR_TRIGGER_EDGE = 1,
291 INTR_TRIGGER_LEVEL = 2
292 };
293
294 enum 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 */
305 enum cpu_sets {
306 LOCAL_CPUS = 0,
307 INTR_CPUS
308 };
309
310 typedef int (*devop_t)(void);
311
312 /**
313 * @brief This structure is deprecated.
314 *
315 * Use the kobj(9) macro DEFINE_CLASS to
316 * declare classes which implement device drivers.
317 */
318 struct driver {
319 KOBJ_CLASS_FIELDS;
320 };
321
322 /**
323 * @brief A resource mapping.
324 */
325 struct 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 */
335 struct resource_map_request {
336 size_t size;
337 rman_res_t offset;
338 rman_res_t length;
339 vm_memattr_t memattr;
340 };
341
342 void 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)))
346
347 /*
348 * Definitions for drivers which need to keep simple lists of resources
349 * for their child devices.
350 */
351 struct resource;
352
353 /**
354 * @brief An entry for a single resource in a resource list.
355 */
356 struct resource_list_entry {
357 STAILQ_ENTRY(resource_list_entry) link;
358 int type; /**< @brief type argument to alloc_resource */
359 int rid; /**< @brief resource identifier */
360 int flags; /**< @brief resource flags */
361 struct resource *res; /**< @brief the real resource when allocated */
362 rman_res_t start; /**< @brief start of resource range */
363 rman_res_t end; /**< @brief end of resource range */
364 rman_res_t count; /**< @brief count within range */
365 };
366 STAILQ_HEAD(resource_list, resource_list_entry);
367
368 #define RLE_RESERVED 0x0001 /* Reserved by the parent bus. */
369 #define RLE_ALLOCATED 0x0002 /* Reserved resource is allocated. */
370 #define RLE_PREFETCH 0x0004 /* Resource is a prefetch range. */
371
372 void resource_list_init(struct resource_list *rl);
373 void resource_list_free(struct resource_list *rl);
374 struct resource_list_entry *
375 resource_list_add(struct resource_list *rl,
376 int type, int rid,
377 rman_res_t start, rman_res_t end, rman_res_t count);
378 int resource_list_add_next(struct resource_list *rl,
379 int type,
380 rman_res_t start, rman_res_t end, rman_res_t count);
381 int resource_list_busy(struct resource_list *rl,
382 int type, int rid);
383 int resource_list_reserved(struct resource_list *rl, int type, int rid);
384 struct resource_list_entry*
385 resource_list_find(struct resource_list *rl,
386 int type, int rid);
387 void resource_list_delete(struct resource_list *rl,
388 int type, int rid);
389 struct resource *
390 resource_list_alloc(struct resource_list *rl,
391 device_t bus, device_t child,
392 int type, int *rid,
393 rman_res_t start, rman_res_t end,
394 rman_res_t count, u_int flags);
395 int resource_list_release(struct resource_list *rl,
396 device_t bus, device_t child,
397 int type, int rid, struct resource *res);
398 int resource_list_release_active(struct resource_list *rl,
399 device_t bus, device_t child,
400 int type);
401 struct resource *
402 resource_list_reserve(struct resource_list *rl,
403 device_t bus, device_t child,
404 int type, int *rid,
405 rman_res_t start, rman_res_t end,
406 rman_res_t count, u_int flags);
407 int resource_list_unreserve(struct resource_list *rl,
408 device_t bus, device_t child,
409 int type, int rid);
410 void resource_list_purge(struct resource_list *rl);
411 int resource_list_print_type(struct resource_list *rl,
412 const char *name, int type,
413 const char *format);
414
415 /*
416 * The root bus, to which all top-level buses are attached.
417 */
418 extern device_t root_bus;
419 extern devclass_t root_devclass;
420 void root_bus_configure(void);
421
422 /*
423 * Useful functions for implementing buses.
424 */
425
426 struct _cpuset;
427
428 int bus_generic_activate_resource(device_t dev, device_t child, int type,
429 int rid, struct resource *r);
430 device_t
431 bus_generic_add_child(device_t dev, u_int order, const char *name,
432 int unit);
433 int bus_generic_adjust_resource(device_t bus, device_t child, int type,
434 struct resource *r, rman_res_t start,
435 rman_res_t end);
436 struct resource *
437 bus_generic_alloc_resource(device_t bus, device_t child, int type,
438 int *rid, rman_res_t start, rman_res_t end,
439 rman_res_t count, u_int flags);
440 int bus_generic_translate_resource(device_t dev, int type, rman_res_t start,
441 rman_res_t *newstart);
442 int bus_generic_attach(device_t dev);
443 int bus_generic_bind_intr(device_t dev, device_t child,
444 struct resource *irq, int cpu);
445 int bus_generic_child_location(device_t dev, device_t child, struct sbuf *sb);
446 int bus_generic_child_pnpinfo(device_t dev, device_t child, struct sbuf *sb);
447 int bus_generic_child_present(device_t dev, device_t child);
448 int bus_generic_config_intr(device_t, int, enum intr_trigger,
449 enum intr_polarity);
450 int bus_generic_describe_intr(device_t dev, device_t child,
451 struct resource *irq, void *cookie,
452 const char *descr);
453 int bus_generic_deactivate_resource(device_t dev, device_t child, int type,
454 int rid, struct resource *r);
455 int bus_generic_detach(device_t dev);
456 void bus_generic_driver_added(device_t dev, driver_t *driver);
457 int bus_generic_get_cpus(device_t dev, device_t child, enum cpu_sets op,
458 size_t setsize, struct _cpuset *cpuset);
459 bus_dma_tag_t
460 bus_generic_get_dma_tag(device_t dev, device_t child);
461 bus_space_tag_t
462 bus_generic_get_bus_tag(device_t dev, device_t child);
463 int bus_generic_get_domain(device_t dev, device_t child, int *domain);
464 ssize_t bus_generic_get_property(device_t dev, device_t child,
465 const char *propname, void *propvalue,
466 size_t size, device_property_type_t type);
467 struct resource_list *
468 bus_generic_get_resource_list(device_t, device_t);
469 int bus_generic_map_resource(device_t dev, device_t child, int type,
470 struct resource *r,
471 struct resource_map_request *args,
472 struct resource_map *map);
473 void bus_generic_new_pass(device_t dev);
474 int bus_print_child_header(device_t dev, device_t child);
475 int bus_print_child_domain(device_t dev, device_t child);
476 int bus_print_child_footer(device_t dev, device_t child);
477 int bus_generic_print_child(device_t dev, device_t child);
478 int bus_generic_probe(device_t dev);
479 int bus_generic_read_ivar(device_t dev, device_t child, int which,
480 uintptr_t *result);
481 int bus_generic_release_resource(device_t bus, device_t child,
482 int type, int rid, struct resource *r);
483 int bus_generic_resume(device_t dev);
484 int bus_generic_resume_child(device_t dev, device_t child);
485 int bus_generic_setup_intr(device_t dev, device_t child,
486 struct resource *irq, int flags,
487 driver_filter_t *filter, driver_intr_t *intr,
488 void *arg, void **cookiep);
489
490 struct resource *
491 bus_generic_rl_alloc_resource (device_t, device_t, int, int *,
492 rman_res_t, rman_res_t, rman_res_t, u_int);
493 void bus_generic_rl_delete_resource (device_t, device_t, int, int);
494 int bus_generic_rl_get_resource (device_t, device_t, int, int, rman_res_t *,
495 rman_res_t *);
496 int bus_generic_rl_set_resource (device_t, device_t, int, int, rman_res_t,
497 rman_res_t);
498 int bus_generic_rl_release_resource (device_t, device_t, int, int,
499 struct resource *);
500
501 int bus_generic_shutdown(device_t dev);
502 int bus_generic_suspend(device_t dev);
503 int bus_generic_suspend_child(device_t dev, device_t child);
504 int bus_generic_teardown_intr(device_t dev, device_t child,
505 struct resource *irq, void *cookie);
506 int bus_generic_suspend_intr(device_t dev, device_t child,
507 struct resource *irq);
508 int bus_generic_resume_intr(device_t dev, device_t child,
509 struct resource *irq);
510 int bus_generic_unmap_resource(device_t dev, device_t child, int type,
511 struct resource *r,
512 struct resource_map *map);
513 int bus_generic_write_ivar(device_t dev, device_t child, int which,
514 uintptr_t value);
515 int bus_generic_get_device_path(device_t bus, device_t child, const char *locator,
516 struct sbuf *sb);
517 int bus_helper_reset_post(device_t dev, int flags);
518 int bus_helper_reset_prepare(device_t dev, int flags);
519 int bus_null_rescan(device_t dev);
520
521 /*
522 * Wrapper functions for the BUS_*_RESOURCE methods to make client code
523 * a little simpler.
524 */
525
526 struct resource_spec {
527 int type;
528 int rid;
529 int flags;
530 };
531 #define RESOURCE_SPEC_END {-1, 0, 0}
532
533 int bus_alloc_resources(device_t dev, struct resource_spec *rs,
534 struct resource **res);
535 void bus_release_resources(device_t dev, const struct resource_spec *rs,
536 struct resource **res);
537
538 int bus_adjust_resource(device_t child, int type, struct resource *r,
539 rman_res_t start, rman_res_t end);
540 int bus_translate_resource(device_t child, int type, rman_res_t start,
541 rman_res_t *newstart);
542 struct resource *bus_alloc_resource(device_t dev, int type, int *rid,
543 rman_res_t start, rman_res_t end,
544 rman_res_t count, u_int flags);
545 int bus_activate_resource(device_t dev, int type, int rid,
546 struct resource *r);
547 int bus_deactivate_resource(device_t dev, int type, int rid,
548 struct resource *r);
549 int bus_map_resource(device_t dev, int type, struct resource *r,
550 struct resource_map_request *args,
551 struct resource_map *map);
552 int bus_unmap_resource(device_t dev, int type, struct resource *r,
553 struct resource_map *map);
554 int bus_get_cpus(device_t dev, enum cpu_sets op, size_t setsize,
555 struct _cpuset *cpuset);
556 bus_dma_tag_t bus_get_dma_tag(device_t dev);
557 bus_space_tag_t bus_get_bus_tag(device_t dev);
558 int bus_get_domain(device_t dev, int *domain);
559 int bus_release_resource(device_t dev, int type, int rid,
560 struct resource *r);
561 int bus_free_resource(device_t dev, int type, struct resource *r);
562 int bus_setup_intr(device_t dev, struct resource *r, int flags,
563 driver_filter_t filter, driver_intr_t handler,
564 void *arg, void **cookiep);
565 int bus_teardown_intr(device_t dev, struct resource *r, void *cookie);
566 int bus_suspend_intr(device_t dev, struct resource *r);
567 int bus_resume_intr(device_t dev, struct resource *r);
568 int bus_bind_intr(device_t dev, struct resource *r, int cpu);
569 int bus_describe_intr(device_t dev, struct resource *irq, void *cookie,
570 const char *fmt, ...) __printflike(4, 5);
571 int bus_set_resource(device_t dev, int type, int rid,
572 rman_res_t start, rman_res_t count);
573 int bus_get_resource(device_t dev, int type, int rid,
574 rman_res_t *startp, rman_res_t *countp);
575 rman_res_t bus_get_resource_start(device_t dev, int type, int rid);
576 rman_res_t bus_get_resource_count(device_t dev, int type, int rid);
577 void bus_delete_resource(device_t dev, int type, int rid);
578 int bus_child_present(device_t child);
579 int bus_child_pnpinfo(device_t child, struct sbuf *sb);
580 int bus_child_location(device_t child, struct sbuf *sb);
581 void bus_enumerate_hinted_children(device_t bus);
582 int bus_delayed_attach_children(device_t bus);
583
584 static __inline struct resource *
585 bus_alloc_resource_any(device_t dev, int type, int *rid, u_int flags)
586 {
587 return (bus_alloc_resource(dev, type, rid, 0, ~0, 1, flags));
588 }
589
590 static __inline struct resource *
591 bus_alloc_resource_anywhere(device_t dev, int type, int *rid,
592 rman_res_t count, u_int flags)
593 {
594 return (bus_alloc_resource(dev, type, rid, 0, ~0, count, flags));
595 }
596
597 /*
598 * Access functions for device.
599 */
600 device_t device_add_child(device_t dev, const char *name, int unit);
601 device_t device_add_child_ordered(device_t dev, u_int order,
602 const char *name, int unit);
603 void device_busy(device_t dev);
604 int device_delete_child(device_t dev, device_t child);
605 int device_delete_children(device_t dev);
606 int device_attach(device_t dev);
607 int device_detach(device_t dev);
608 void device_disable(device_t dev);
609 void device_enable(device_t dev);
610 device_t device_find_child(device_t dev, const char *classname,
611 int unit);
612 const char *device_get_desc(device_t dev);
613 devclass_t device_get_devclass(device_t dev);
614 driver_t *device_get_driver(device_t dev);
615 u_int32_t device_get_flags(device_t dev);
616 device_t device_get_parent(device_t dev);
617 int device_get_children(device_t dev, device_t **listp, int *countp);
618 void *device_get_ivars(device_t dev);
619 void device_set_ivars(device_t dev, void *ivars);
620 const char *device_get_name(device_t dev);
621 const char *device_get_nameunit(device_t dev);
622 void *device_get_softc(device_t dev);
623 device_state_t device_get_state(device_t dev);
624 int device_get_unit(device_t dev);
625 struct sysctl_ctx_list *device_get_sysctl_ctx(device_t dev);
626 struct sysctl_oid *device_get_sysctl_tree(device_t dev);
627 int device_has_quiet_children(device_t dev);
628 int device_is_alive(device_t dev); /* did probe succeed? */
629 int device_is_attached(device_t dev); /* did attach succeed? */
630 int device_is_enabled(device_t dev);
631 int device_is_suspended(device_t dev);
632 int device_is_quiet(device_t dev);
633 device_t device_lookup_by_name(const char *name);
634 int device_print_prettyname(device_t dev);
635 int device_printf(device_t dev, const char *, ...) __printflike(2, 3);
636 int device_log(device_t dev, int pri, const char *, ...) __printflike(3, 4);
637 int device_probe(device_t dev);
638 int device_probe_and_attach(device_t dev);
639 int device_probe_child(device_t bus, device_t dev);
640 int device_quiesce(device_t dev);
641 void device_quiet(device_t dev);
642 void device_quiet_children(device_t dev);
643 void device_set_desc(device_t dev, const char* desc);
644 void device_set_desc_copy(device_t dev, const char* desc);
645 int device_set_devclass(device_t dev, const char *classname);
646 int device_set_devclass_fixed(device_t dev, const char *classname);
647 bool device_is_devclass_fixed(device_t dev);
648 int device_set_driver(device_t dev, driver_t *driver);
649 void device_set_flags(device_t dev, u_int32_t flags);
650 void device_set_softc(device_t dev, void *softc);
651 void device_free_softc(void *softc);
652 void device_claim_softc(device_t dev);
653 int device_set_unit(device_t dev, int unit); /* XXX DONT USE XXX */
654 int device_shutdown(device_t dev);
655 void device_unbusy(device_t dev);
656 void device_verbose(device_t dev);
657 ssize_t device_get_property(device_t dev, const char *prop, void *val,
658 size_t sz, device_property_type_t type);
659 bool device_has_property(device_t dev, const char *prop);
660
661 /*
662 * Access functions for devclass.
663 */
664 int devclass_add_driver(devclass_t dc, driver_t *driver,
665 int pass, devclass_t *dcp);
666 devclass_t devclass_create(const char *classname);
667 int devclass_delete_driver(devclass_t busclass, driver_t *driver);
668 devclass_t devclass_find(const char *classname);
669 const char *devclass_get_name(devclass_t dc);
670 device_t devclass_get_device(devclass_t dc, int unit);
671 void *devclass_get_softc(devclass_t dc, int unit);
672 int devclass_get_devices(devclass_t dc, device_t **listp, int *countp);
673 int devclass_get_drivers(devclass_t dc, driver_t ***listp, int *countp);
674 int devclass_get_count(devclass_t dc);
675 int devclass_get_maxunit(devclass_t dc);
676 int devclass_find_free_unit(devclass_t dc, int unit);
677 void devclass_set_parent(devclass_t dc, devclass_t pdc);
678 devclass_t devclass_get_parent(devclass_t dc);
679 struct sysctl_ctx_list *devclass_get_sysctl_ctx(devclass_t dc);
680 struct sysctl_oid *devclass_get_sysctl_tree(devclass_t dc);
681
682 /*
683 * Access functions for device resources.
684 */
685 int resource_int_value(const char *name, int unit, const char *resname,
686 int *result);
687 int resource_long_value(const char *name, int unit, const char *resname,
688 long *result);
689 int resource_string_value(const char *name, int unit, const char *resname,
690 const char **result);
691 int resource_disabled(const char *name, int unit);
692 int resource_find_match(int *anchor, const char **name, int *unit,
693 const char *resname, const char *value);
694 int resource_find_dev(int *anchor, const char *name, int *unit,
695 const char *resname, const char *value);
696 int resource_unset_value(const char *name, int unit, const char *resname);
697
698 /*
699 * Functions for maintaining and checking consistency of
700 * bus information exported to userspace.
701 */
702 int bus_data_generation_check(int generation);
703 void bus_data_generation_update(void);
704
705 /**
706 * Some convenience defines for probe routines to return. These are just
707 * suggested values, and there's nothing magical about them.
708 * BUS_PROBE_SPECIFIC is for devices that cannot be reprobed, and that no
709 * possible other driver may exist (typically legacy drivers who don't follow
710 * all the rules, or special needs drivers). BUS_PROBE_VENDOR is the
711 * suggested value that vendor supplied drivers use. This is for source or
712 * binary drivers that are not yet integrated into the FreeBSD tree. Its use
713 * in the base OS is prohibited. BUS_PROBE_DEFAULT is the normal return value
714 * for drivers to use. It is intended that nearly all of the drivers in the
715 * tree should return this value. BUS_PROBE_LOW_PRIORITY are for drivers that
716 * have special requirements like when there are two drivers that support
717 * overlapping series of hardware devices. In this case the one that supports
718 * the older part of the line would return this value, while the one that
719 * supports the newer ones would return BUS_PROBE_DEFAULT. BUS_PROBE_GENERIC
720 * is for drivers that wish to have a generic form and a specialized form,
721 * like is done with the pci bus and the acpi pci bus. BUS_PROBE_HOOVER is
722 * for those buses that implement a generic device placeholder for devices on
723 * the bus that have no more specific driver for them (aka ugen).
724 * BUS_PROBE_NOWILDCARD or lower means that the device isn't really bidding
725 * for a device node, but accepts only devices that its parent has told it
726 * use this driver.
727 */
728 #define BUS_PROBE_SPECIFIC 0 /* Only I can use this device */
729 #define BUS_PROBE_VENDOR (-10) /* Vendor supplied driver */
730 #define BUS_PROBE_DEFAULT (-20) /* Base OS default driver */
731 #define BUS_PROBE_LOW_PRIORITY (-40) /* Older, less desirable drivers */
732 #define BUS_PROBE_GENERIC (-100) /* generic driver for dev */
733 #define BUS_PROBE_HOOVER (-1000000) /* Driver for any dev on bus */
734 #define BUS_PROBE_NOWILDCARD (-2000000000) /* No wildcard device matches */
735
736 /**
737 * During boot, the device tree is scanned multiple times. Each scan,
738 * or pass, drivers may be attached to devices. Each driver
739 * attachment is assigned a pass number. Drivers may only probe and
740 * attach to devices if their pass number is less than or equal to the
741 * current system-wide pass number. The default pass is the last pass
742 * and is used by most drivers. Drivers needed by the scheduler are
743 * probed in earlier passes.
744 */
745 #define BUS_PASS_ROOT 0 /* Used to attach root0. */
746 #define BUS_PASS_BUS 10 /* Buses and bridges. */
747 #define BUS_PASS_CPU 20 /* CPU devices. */
748 #define BUS_PASS_RESOURCE 30 /* Resource discovery. */
749 #define BUS_PASS_INTERRUPT 40 /* Interrupt controllers. */
750 #define BUS_PASS_TIMER 50 /* Timers and clocks. */
751 #define BUS_PASS_SCHEDULER 60 /* Start scheduler. */
752 #define BUS_PASS_SUPPORTDEV 100000 /* Drivers which support DEFAULT drivers. */
753 #define BUS_PASS_DEFAULT __INT_MAX /* Everything else. */
754
755 #define BUS_PASS_ORDER_FIRST 0
756 #define BUS_PASS_ORDER_EARLY 2
757 #define BUS_PASS_ORDER_MIDDLE 5
758 #define BUS_PASS_ORDER_LATE 7
759 #define BUS_PASS_ORDER_LAST 9
760
761 #define BUS_LOCATOR_ACPI "ACPI"
762 #define BUS_LOCATOR_FREEBSD "FreeBSD"
763 #define BUS_LOCATOR_UEFI "UEFI"
764 #define BUS_LOCATOR_OFW "OFW"
765
766 extern int bus_current_pass;
767
768 void bus_set_pass(int pass);
769
770 /**
771 * Routines to lock / unlock the newbus lock.
772 * Must be taken out to interact with newbus.
773 */
774 void bus_topo_lock(void);
775 void bus_topo_unlock(void);
776 struct mtx * bus_topo_mtx(void);
777 void bus_topo_assert(void);
778
779 /**
780 * Shorthands for constructing method tables.
781 */
782 #define DEVMETHOD KOBJMETHOD
783 #define DEVMETHOD_END KOBJMETHOD_END
784
785 /*
786 * Some common device interfaces.
787 */
788 #include "device_if.h"
789 #include "bus_if.h"
790
791 struct module;
792
793 int driver_module_handler(struct module *, int, void *);
794
795 /**
796 * Module support for automatically adding drivers to buses.
797 */
798 struct driver_module_data {
799 int (*dmd_chainevh)(struct module *, int, void *);
800 void *dmd_chainarg;
801 const char *dmd_busname;
802 kobj_class_t dmd_driver;
803 devclass_t *dmd_devclass;
804 int dmd_pass;
805 };
806
807 #define EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, \
808 order, pass) \
809 \
810 static struct driver_module_data name##_##busname##_driver_mod = { \
811 evh, arg, \
812 #busname, \
813 (kobj_class_t) &driver, \
814 NULL, \
815 pass \
816 }; \
817 \
818 static moduledata_t name##_##busname##_mod = { \
819 #busname "/" #name, \
820 driver_module_handler, \
821 &name##_##busname##_driver_mod \
822 }; \
823 DECLARE_MODULE(name##_##busname, name##_##busname##_mod, \
824 SI_SUB_DRIVERS, order)
825
826 #define EARLY_DRIVER_MODULE(name, busname, driver, evh, arg, pass) \
827 EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, \
828 SI_ORDER_MIDDLE, pass)
829
830 #define DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, order) \
831 EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, \
832 order, BUS_PASS_DEFAULT)
833
834 #define DRIVER_MODULE(name, busname, driver, evh, arg) \
835 EARLY_DRIVER_MODULE(name, busname, driver, evh, arg, \
836 BUS_PASS_DEFAULT)
837
838 /**
839 * Generic ivar accessor generation macros for bus drivers
840 */
841 #define __BUS_ACCESSOR(varp, var, ivarp, ivar, type) \
842 \
843 static __inline type varp ## _get_ ## var(device_t dev) \
844 { \
845 uintptr_t v; \
846 int e __diagused; \
847 e = BUS_READ_IVAR(device_get_parent(dev), dev, \
848 ivarp ## _IVAR_ ## ivar, &v); \
849 KASSERT(e == 0, ("%s failed for %s on bus %s, error = %d", \
850 __func__, device_get_nameunit(dev), \
851 device_get_nameunit(device_get_parent(dev)), e)); \
852 return ((type) v); \
853 } \
854 \
855 static __inline void varp ## _set_ ## var(device_t dev, type t) \
856 { \
857 uintptr_t v = (uintptr_t) t; \
858 int e __diagused; \
859 e = BUS_WRITE_IVAR(device_get_parent(dev), dev, \
860 ivarp ## _IVAR_ ## ivar, v); \
861 KASSERT(e == 0, ("%s failed for %s on bus %s, error = %d", \
862 __func__, device_get_nameunit(dev), \
863 device_get_nameunit(device_get_parent(dev)), e)); \
864 }
865
866 struct device_location_cache;
867 typedef struct device_location_cache device_location_cache_t;
868 device_location_cache_t *dev_wired_cache_init(void);
869 void dev_wired_cache_fini(device_location_cache_t *dcp);
870 bool dev_wired_cache_match(device_location_cache_t *dcp, device_t dev, const char *at);
871
872
873 /**
874 * Shorthand macros, taking resource argument
875 * Generated with sys/tools/bus_macro.sh
876 */
877
878 #define bus_barrier(r, o, l, f) \
879 bus_space_barrier((r)->r_bustag, (r)->r_bushandle, (o), (l), (f))
880 #define bus_poke_1(r, o, v) \
881 bus_space_poke_1((r)->r_bustag, (r)->r_bushandle, (o), (v))
882 #define bus_peek_1(r, o, vp) \
883 bus_space_peek_1((r)->r_bustag, (r)->r_bushandle, (o), (vp))
884 #define bus_read_1(r, o) \
885 bus_space_read_1((r)->r_bustag, (r)->r_bushandle, (o))
886 #define bus_read_multi_1(r, o, d, c) \
887 bus_space_read_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
888 #define bus_read_region_1(r, o, d, c) \
889 bus_space_read_region_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
890 #define bus_set_multi_1(r, o, v, c) \
891 bus_space_set_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
892 #define bus_set_region_1(r, o, v, c) \
893 bus_space_set_region_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
894 #define bus_write_1(r, o, v) \
895 bus_space_write_1((r)->r_bustag, (r)->r_bushandle, (o), (v))
896 #define bus_write_multi_1(r, o, d, c) \
897 bus_space_write_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
898 #define bus_write_region_1(r, o, d, c) \
899 bus_space_write_region_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
900 #define bus_read_stream_1(r, o) \
901 bus_space_read_stream_1((r)->r_bustag, (r)->r_bushandle, (o))
902 #define bus_read_multi_stream_1(r, o, d, c) \
903 bus_space_read_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
904 #define bus_read_region_stream_1(r, o, d, c) \
905 bus_space_read_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
906 #define bus_set_multi_stream_1(r, o, v, c) \
907 bus_space_set_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
908 #define bus_set_region_stream_1(r, o, v, c) \
909 bus_space_set_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
910 #define bus_write_stream_1(r, o, v) \
911 bus_space_write_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v))
912 #define bus_write_multi_stream_1(r, o, d, c) \
913 bus_space_write_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
914 #define bus_write_region_stream_1(r, o, d, c) \
915 bus_space_write_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
916 #define bus_poke_2(r, o, v) \
917 bus_space_poke_2((r)->r_bustag, (r)->r_bushandle, (o), (v))
918 #define bus_peek_2(r, o, vp) \
919 bus_space_peek_2((r)->r_bustag, (r)->r_bushandle, (o), (vp))
920 #define bus_read_2(r, o) \
921 bus_space_read_2((r)->r_bustag, (r)->r_bushandle, (o))
922 #define bus_read_multi_2(r, o, d, c) \
923 bus_space_read_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
924 #define bus_read_region_2(r, o, d, c) \
925 bus_space_read_region_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
926 #define bus_set_multi_2(r, o, v, c) \
927 bus_space_set_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
928 #define bus_set_region_2(r, o, v, c) \
929 bus_space_set_region_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
930 #define bus_write_2(r, o, v) \
931 bus_space_write_2((r)->r_bustag, (r)->r_bushandle, (o), (v))
932 #define bus_write_multi_2(r, o, d, c) \
933 bus_space_write_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
934 #define bus_write_region_2(r, o, d, c) \
935 bus_space_write_region_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
936 #define bus_read_stream_2(r, o) \
937 bus_space_read_stream_2((r)->r_bustag, (r)->r_bushandle, (o))
938 #define bus_read_multi_stream_2(r, o, d, c) \
939 bus_space_read_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
940 #define bus_read_region_stream_2(r, o, d, c) \
941 bus_space_read_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
942 #define bus_set_multi_stream_2(r, o, v, c) \
943 bus_space_set_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
944 #define bus_set_region_stream_2(r, o, v, c) \
945 bus_space_set_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
946 #define bus_write_stream_2(r, o, v) \
947 bus_space_write_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v))
948 #define bus_write_multi_stream_2(r, o, d, c) \
949 bus_space_write_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
950 #define bus_write_region_stream_2(r, o, d, c) \
951 bus_space_write_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
952 #define bus_poke_4(r, o, v) \
953 bus_space_poke_4((r)->r_bustag, (r)->r_bushandle, (o), (v))
954 #define bus_peek_4(r, o, vp) \
955 bus_space_peek_4((r)->r_bustag, (r)->r_bushandle, (o), (vp))
956 #define bus_read_4(r, o) \
957 bus_space_read_4((r)->r_bustag, (r)->r_bushandle, (o))
958 #define bus_read_multi_4(r, o, d, c) \
959 bus_space_read_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
960 #define bus_read_region_4(r, o, d, c) \
961 bus_space_read_region_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
962 #define bus_set_multi_4(r, o, v, c) \
963 bus_space_set_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
964 #define bus_set_region_4(r, o, v, c) \
965 bus_space_set_region_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
966 #define bus_write_4(r, o, v) \
967 bus_space_write_4((r)->r_bustag, (r)->r_bushandle, (o), (v))
968 #define bus_write_multi_4(r, o, d, c) \
969 bus_space_write_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
970 #define bus_write_region_4(r, o, d, c) \
971 bus_space_write_region_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
972 #define bus_read_stream_4(r, o) \
973 bus_space_read_stream_4((r)->r_bustag, (r)->r_bushandle, (o))
974 #define bus_read_multi_stream_4(r, o, d, c) \
975 bus_space_read_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
976 #define bus_read_region_stream_4(r, o, d, c) \
977 bus_space_read_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
978 #define bus_set_multi_stream_4(r, o, v, c) \
979 bus_space_set_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
980 #define bus_set_region_stream_4(r, o, v, c) \
981 bus_space_set_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
982 #define bus_write_stream_4(r, o, v) \
983 bus_space_write_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v))
984 #define bus_write_multi_stream_4(r, o, d, c) \
985 bus_space_write_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
986 #define bus_write_region_stream_4(r, o, d, c) \
987 bus_space_write_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
988 #define bus_poke_8(r, o, v) \
989 bus_space_poke_8((r)->r_bustag, (r)->r_bushandle, (o), (v))
990 #define bus_peek_8(r, o, vp) \
991 bus_space_peek_8((r)->r_bustag, (r)->r_bushandle, (o), (vp))
992 #define bus_read_8(r, o) \
993 bus_space_read_8((r)->r_bustag, (r)->r_bushandle, (o))
994 #define bus_read_multi_8(r, o, d, c) \
995 bus_space_read_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
996 #define bus_read_region_8(r, o, d, c) \
997 bus_space_read_region_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
998 #define bus_set_multi_8(r, o, v, c) \
999 bus_space_set_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1000 #define bus_set_region_8(r, o, v, c) \
1001 bus_space_set_region_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1002 #define bus_write_8(r, o, v) \
1003 bus_space_write_8((r)->r_bustag, (r)->r_bushandle, (o), (v))
1004 #define bus_write_multi_8(r, o, d, c) \
1005 bus_space_write_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1006 #define bus_write_region_8(r, o, d, c) \
1007 bus_space_write_region_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1008 #define bus_read_stream_8(r, o) \
1009 bus_space_read_stream_8((r)->r_bustag, (r)->r_bushandle, (o))
1010 #define bus_read_multi_stream_8(r, o, d, c) \
1011 bus_space_read_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1012 #define bus_read_region_stream_8(r, o, d, c) \
1013 bus_space_read_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1014 #define bus_set_multi_stream_8(r, o, v, c) \
1015 bus_space_set_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1016 #define bus_set_region_stream_8(r, o, v, c) \
1017 bus_space_set_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1018 #define bus_write_stream_8(r, o, v) \
1019 bus_space_write_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v))
1020 #define bus_write_multi_stream_8(r, o, d, c) \
1021 bus_space_write_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1022 #define bus_write_region_stream_8(r, o, d, c) \
1023 bus_space_write_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1024 #endif /* _KERNEL */
1025
1026 #endif /* !_SYS_BUS_H_ */
Cache object: 65922351d62dad0bfafc8be6a6e782d8
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