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 */
45 struct 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 */
54 typedef 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 */
68 typedef 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)
82 struct 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 */
116 struct devreq_buffer {
117 void *buffer;
118 size_t length;
119 };
120
121 struct 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 */
174 typedef void (*dev_lookup_fn)(void *arg, const char *name,
175 device_t *result);
176 EVENTHANDLER_DECLARE(dev_lookup, dev_lookup_fn);
177
178 /**
179 * @brief A device driver.
180 *
181 * Provides an abstraction layer for driver dispatch.
182 */
183 typedef 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 */
205 typedef 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 */
249 typedef int driver_filter_t(void*);
250 typedef 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 */
268 enum 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
285 enum intr_trigger {
286 INTR_TRIGGER_INVALID = -1,
287 INTR_TRIGGER_CONFORM = 0,
288 INTR_TRIGGER_EDGE = 1,
289 INTR_TRIGGER_LEVEL = 2
290 };
291
292 enum 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 */
303 enum cpu_sets {
304 LOCAL_CPUS = 0,
305 INTR_CPUS
306 };
307
308 typedef 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 */
316 struct driver {
317 KOBJ_CLASS_FIELDS;
318 };
319
320 struct resource;
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 int 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 */
358 struct 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 };
368 STAILQ_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
374 void resource_list_init(struct resource_list *rl);
375 void resource_list_free(struct resource_list *rl);
376 struct 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);
380 int resource_list_add_next(struct resource_list *rl,
381 int type,
382 rman_res_t start, rman_res_t end, rman_res_t count);
383 int resource_list_busy(struct resource_list *rl,
384 int type, int rid);
385 int resource_list_reserved(struct resource_list *rl, int type, int rid);
386 struct resource_list_entry*
387 resource_list_find(struct resource_list *rl,
388 int type, int rid);
389 void resource_list_delete(struct resource_list *rl,
390 int type, int rid);
391 struct 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);
397 int resource_list_release(struct resource_list *rl,
398 device_t bus, device_t child,
399 struct resource *res);
400 int resource_list_release_active(struct resource_list *rl,
401 device_t bus, device_t child,
402 int type);
403 struct 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);
409 int resource_list_unreserve(struct resource_list *rl,
410 device_t bus, device_t child,
411 int type, int rid);
412 void resource_list_purge(struct resource_list *rl);
413 int 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 */
420 extern device_t root_bus;
421 extern devclass_t root_devclass;
422 void root_bus_configure(void);
423
424 /*
425 * Useful functions for implementing buses.
426 */
427
428 struct _cpuset;
429
430 int bus_generic_activate_resource(device_t dev, device_t child,
431 struct resource *r);
432 device_t
433 bus_generic_add_child(device_t dev, u_int order, const char *name,
434 int unit);
435 int bus_generic_adjust_resource(device_t bus, device_t child,
436 struct resource *r, rman_res_t start,
437 rman_res_t end);
438 struct 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);
442 int bus_generic_translate_resource(device_t dev, int type, rman_res_t start,
443 rman_res_t *newstart);
444 int bus_generic_attach(device_t dev);
445 int bus_generic_bind_intr(device_t dev, device_t child,
446 struct resource *irq, int cpu);
447 int bus_generic_child_location(device_t dev, device_t child, struct sbuf *sb);
448 int bus_generic_child_pnpinfo(device_t dev, device_t child, struct sbuf *sb);
449 int bus_generic_child_present(device_t dev, device_t child);
450 int bus_generic_config_intr(device_t, int, enum intr_trigger,
451 enum intr_polarity);
452 int bus_generic_describe_intr(device_t dev, device_t child,
453 struct resource *irq, void *cookie,
454 const char *descr);
455 int bus_generic_deactivate_resource(device_t dev, device_t child,
456 struct resource *r);
457 int bus_generic_detach(device_t dev);
458 void bus_generic_driver_added(device_t dev, driver_t *driver);
459 int bus_generic_get_cpus(device_t dev, device_t child, enum cpu_sets op,
460 size_t setsize, struct _cpuset *cpuset);
461 bus_dma_tag_t
462 bus_generic_get_dma_tag(device_t dev, device_t child);
463 bus_space_tag_t
464 bus_generic_get_bus_tag(device_t dev, device_t child);
465 int bus_generic_get_domain(device_t dev, device_t child, int *domain);
466 ssize_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);
469 struct resource_list *
470 bus_generic_get_resource_list(device_t, device_t);
471 int bus_generic_map_resource(device_t dev, device_t child,
472 struct resource *r,
473 struct resource_map_request *args,
474 struct resource_map *map);
475 void bus_generic_new_pass(device_t dev);
476 int bus_print_child_header(device_t dev, device_t child);
477 int bus_print_child_domain(device_t dev, device_t child);
478 int bus_print_child_footer(device_t dev, device_t child);
479 int bus_generic_print_child(device_t dev, device_t child);
480 int bus_generic_probe(device_t dev);
481 int bus_generic_read_ivar(device_t dev, device_t child, int which,
482 uintptr_t *result);
483 int bus_generic_release_resource(device_t bus, device_t child,
484 struct resource *r);
485 int bus_generic_resume(device_t dev);
486 int bus_generic_resume_child(device_t dev, device_t child);
487 int 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
492 struct 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);
495 void bus_generic_rl_delete_resource (device_t, device_t, int, int);
496 int bus_generic_rl_get_resource (device_t, device_t, int, int, rman_res_t *,
497 rman_res_t *);
498 int bus_generic_rl_set_resource (device_t, device_t, int, int, rman_res_t,
499 rman_res_t);
500 int bus_generic_rl_release_resource (device_t, device_t, struct resource *);
501 struct resource *
502 bus_generic_rman_alloc_resource(device_t dev, device_t child, int type,
503 int *rid, rman_res_t start,
504 rman_res_t end, rman_res_t count,
505 u_int flags);
506 int bus_generic_rman_adjust_resource(device_t dev, device_t child,
507 struct resource *r, rman_res_t start,
508 rman_res_t end);
509 int bus_generic_rman_release_resource(device_t dev, device_t child,
510 struct resource *r);
511 int bus_generic_rman_activate_resource(device_t dev, device_t child,
512 struct resource *r);
513 int bus_generic_rman_deactivate_resource(device_t dev, device_t child,
514 struct resource *r);
515
516 int bus_generic_shutdown(device_t dev);
517 int bus_generic_suspend(device_t dev);
518 int bus_generic_suspend_child(device_t dev, device_t child);
519 int bus_generic_teardown_intr(device_t dev, device_t child,
520 struct resource *irq, void *cookie);
521 int bus_generic_suspend_intr(device_t dev, device_t child,
522 struct resource *irq);
523 int bus_generic_resume_intr(device_t dev, device_t child,
524 struct resource *irq);
525 int bus_generic_unmap_resource(device_t dev, device_t child,
526 struct resource *r,
527 struct resource_map *map);
528 int bus_generic_write_ivar(device_t dev, device_t child, int which,
529 uintptr_t value);
530 int bus_generic_get_device_path(device_t bus, device_t child, const char *locator,
531 struct sbuf *sb);
532 int bus_helper_reset_post(device_t dev, int flags);
533 int bus_helper_reset_prepare(device_t dev, int flags);
534 int bus_null_rescan(device_t dev);
535
536 /*
537 * Wrapper functions for the BUS_*_RESOURCE methods to make client code
538 * a little simpler.
539 */
540
541 struct resource_spec {
542 int type;
543 int rid;
544 int flags;
545 };
546 #define RESOURCE_SPEC_END {-1, 0, 0}
547
548 int bus_alloc_resources(device_t dev, struct resource_spec *rs,
549 struct resource **res);
550 void bus_release_resources(device_t dev, const struct resource_spec *rs,
551 struct resource **res);
552
553 int bus_adjust_resource(device_t child, struct resource *r,
554 rman_res_t start, rman_res_t end);
555 int bus_translate_resource(device_t child, int type, rman_res_t start,
556 rman_res_t *newstart);
557 struct resource *bus_alloc_resource(device_t dev, int type, int *rid,
558 rman_res_t start, rman_res_t end,
559 rman_res_t count, u_int flags);
560 int bus_activate_resource(device_t dev, struct resource *r);
561 int bus_deactivate_resource(device_t dev, struct resource *r);
562 int bus_map_resource(device_t dev, struct resource *r,
563 struct resource_map_request *args,
564 struct resource_map *map);
565 int bus_unmap_resource(device_t dev, struct resource *r,
566 struct resource_map *map);
567 int bus_get_cpus(device_t dev, enum cpu_sets op, size_t setsize,
568 struct _cpuset *cpuset);
569 bus_dma_tag_t bus_get_dma_tag(device_t dev);
570 bus_space_tag_t bus_get_bus_tag(device_t dev);
571 int bus_get_domain(device_t dev, int *domain);
572 int bus_release_resource(device_t dev, struct resource *r);
573 int bus_free_resource(device_t dev, int type, struct resource *r);
574 int bus_setup_intr(device_t dev, struct resource *r, int flags,
575 driver_filter_t filter, driver_intr_t handler,
576 void *arg, void **cookiep);
577 int bus_teardown_intr(device_t dev, struct resource *r, void *cookie);
578 int bus_suspend_intr(device_t dev, struct resource *r);
579 int bus_resume_intr(device_t dev, struct resource *r);
580 int bus_bind_intr(device_t dev, struct resource *r, int cpu);
581 int bus_describe_intr(device_t dev, struct resource *irq, void *cookie,
582 const char *fmt, ...) __printflike(4, 5);
583 int bus_set_resource(device_t dev, int type, int rid,
584 rman_res_t start, rman_res_t count);
585 int bus_get_resource(device_t dev, int type, int rid,
586 rman_res_t *startp, rman_res_t *countp);
587 rman_res_t bus_get_resource_start(device_t dev, int type, int rid);
588 rman_res_t bus_get_resource_count(device_t dev, int type, int rid);
589 void bus_delete_resource(device_t dev, int type, int rid);
590 int bus_child_present(device_t child);
591 int bus_child_pnpinfo(device_t child, struct sbuf *sb);
592 int bus_child_location(device_t child, struct sbuf *sb);
593 void bus_enumerate_hinted_children(device_t bus);
594 int bus_delayed_attach_children(device_t bus);
595
596 static __inline struct resource *
bus_alloc_resource_any(device_t dev,int type,int * rid,u_int flags)597 bus_alloc_resource_any(device_t dev, int type, int *rid, u_int flags)
598 {
599 return (bus_alloc_resource(dev, type, rid, 0, ~0, 1, flags));
600 }
601
602 static __inline struct resource *
bus_alloc_resource_anywhere(device_t dev,int type,int * rid,rman_res_t count,u_int flags)603 bus_alloc_resource_anywhere(device_t dev, int type, int *rid,
604 rman_res_t count, u_int flags)
605 {
606 return (bus_alloc_resource(dev, type, rid, 0, ~0, count, flags));
607 }
608
609 /* Compat shims for simpler bus resource API. */
610 int bus_adjust_resource_old(device_t child, int type, struct resource *r,
611 rman_res_t start, rman_res_t end);
612 int bus_activate_resource_old(device_t dev, int type, int rid,
613 struct resource *r);
614 int bus_deactivate_resource_old(device_t dev, int type, int rid,
615 struct resource *r);
616 int bus_map_resource_old(device_t dev, int type, struct resource *r,
617 struct resource_map_request *args,
618 struct resource_map *map);
619 int bus_unmap_resource_old(device_t dev, int type, struct resource *r,
620 struct resource_map *map);
621 int bus_release_resource_old(device_t dev, int type, int rid,
622 struct resource *r);
623
624 #define _BUS_API_MACRO(_1, _2, _3, _4, _5, NAME, ...) NAME
625
626 #define bus_adjust_resource(...) \
627 _BUS_API_MACRO(__VA_ARGS__, bus_adjust_resource_old, \
628 bus_adjust_resource)(__VA_ARGS__)
629
630 #define bus_activate_resource(...) \
631 _BUS_API_MACRO(__VA_ARGS__, INVALID, bus_activate_resource_old, \
632 INVALID, bus_activate_resource)(__VA_ARGS__)
633
634 #define bus_deactivate_resource(...) \
635 _BUS_API_MACRO(__VA_ARGS__, INVALID, bus_deactivate_resource_old, \
636 INVALID, bus_deactivate_resource)(__VA_ARGS__)
637
638 #define bus_map_resource(...) \
639 _BUS_API_MACRO(__VA_ARGS__, bus_map_resource_old, \
640 bus_map_resource)(__VA_ARGS__)
641
642 #define bus_unmap_resource(...) \
643 _BUS_API_MACRO(__VA_ARGS__, INVALID, bus_unmap_resource_old, \
644 bus_unmap_resource)(__VA_ARGS__)
645
646 #define bus_release_resource(...) \
647 _BUS_API_MACRO(__VA_ARGS__, INVALID, bus_release_resource_old, \
648 INVALID, bus_release_resource)(__VA_ARGS__)
649
650 /*
651 * Access functions for device.
652 */
653 device_t device_add_child(device_t dev, const char *name, int unit);
654 device_t device_add_child_ordered(device_t dev, u_int order,
655 const char *name, int unit);
656 void device_busy(device_t dev);
657 int device_delete_child(device_t dev, device_t child);
658 int device_delete_children(device_t dev);
659 int device_attach(device_t dev);
660 int device_detach(device_t dev);
661 void device_disable(device_t dev);
662 void device_enable(device_t dev);
663 device_t device_find_child(device_t dev, const char *classname,
664 int unit);
665 const char *device_get_desc(device_t dev);
666 devclass_t device_get_devclass(device_t dev);
667 driver_t *device_get_driver(device_t dev);
668 u_int32_t device_get_flags(device_t dev);
669 device_t device_get_parent(device_t dev);
670 int device_get_children(device_t dev, device_t **listp, int *countp);
671 void *device_get_ivars(device_t dev);
672 void device_set_ivars(device_t dev, void *ivars);
673 const char *device_get_name(device_t dev);
674 const char *device_get_nameunit(device_t dev);
675 void *device_get_softc(device_t dev);
676 device_state_t device_get_state(device_t dev);
677 int device_get_unit(device_t dev);
678 struct sysctl_ctx_list *device_get_sysctl_ctx(device_t dev);
679 struct sysctl_oid *device_get_sysctl_tree(device_t dev);
680 int device_has_quiet_children(device_t dev);
681 int device_is_alive(device_t dev); /* did probe succeed? */
682 int device_is_attached(device_t dev); /* did attach succeed? */
683 int device_is_enabled(device_t dev);
684 int device_is_suspended(device_t dev);
685 int device_is_quiet(device_t dev);
686 device_t device_lookup_by_name(const char *name);
687 int device_print_prettyname(device_t dev);
688 int device_printf(device_t dev, const char *, ...) __printflike(2, 3);
689 int device_log(device_t dev, int pri, const char *, ...) __printflike(3, 4);
690 int device_probe(device_t dev);
691 int device_probe_and_attach(device_t dev);
692 int device_probe_child(device_t bus, device_t dev);
693 int device_quiesce(device_t dev);
694 void device_quiet(device_t dev);
695 void device_quiet_children(device_t dev);
696 void device_set_desc(device_t dev, const char* desc);
697 void device_set_descf(device_t dev, const char* fmt, ...) __printflike(2, 3);
698 void device_set_desc_copy(device_t dev, const char* desc);
699 int device_set_devclass(device_t dev, const char *classname);
700 int device_set_devclass_fixed(device_t dev, const char *classname);
701 bool device_is_devclass_fixed(device_t dev);
702 int device_set_driver(device_t dev, driver_t *driver);
703 void device_set_flags(device_t dev, u_int32_t flags);
704 void device_set_softc(device_t dev, void *softc);
705 void device_free_softc(void *softc);
706 void device_claim_softc(device_t dev);
707 int device_set_unit(device_t dev, int unit); /* XXX DONT USE XXX */
708 int device_shutdown(device_t dev);
709 void device_unbusy(device_t dev);
710 void device_verbose(device_t dev);
711 ssize_t device_get_property(device_t dev, const char *prop, void *val,
712 size_t sz, device_property_type_t type);
713 bool device_has_property(device_t dev, const char *prop);
714
715 /*
716 * Access functions for devclass.
717 */
718 int devclass_add_driver(devclass_t dc, driver_t *driver,
719 int pass, devclass_t *dcp);
720 devclass_t devclass_create(const char *classname);
721 int devclass_delete_driver(devclass_t busclass, driver_t *driver);
722 devclass_t devclass_find(const char *classname);
723 const char *devclass_get_name(devclass_t dc);
724 device_t devclass_get_device(devclass_t dc, int unit);
725 void *devclass_get_softc(devclass_t dc, int unit);
726 int devclass_get_devices(devclass_t dc, device_t **listp, int *countp);
727 int devclass_get_drivers(devclass_t dc, driver_t ***listp, int *countp);
728 int devclass_get_count(devclass_t dc);
729 int devclass_get_maxunit(devclass_t dc);
730 int devclass_find_free_unit(devclass_t dc, int unit);
731 void devclass_set_parent(devclass_t dc, devclass_t pdc);
732 devclass_t devclass_get_parent(devclass_t dc);
733 struct sysctl_ctx_list *devclass_get_sysctl_ctx(devclass_t dc);
734 struct sysctl_oid *devclass_get_sysctl_tree(devclass_t dc);
735
736 /*
737 * Access functions for device resources.
738 */
739 int resource_int_value(const char *name, int unit, const char *resname,
740 int *result);
741 int resource_long_value(const char *name, int unit, const char *resname,
742 long *result);
743 int resource_string_value(const char *name, int unit, const char *resname,
744 const char **result);
745 int resource_disabled(const char *name, int unit);
746 int resource_find_match(int *anchor, const char **name, int *unit,
747 const char *resname, const char *value);
748 int resource_find_dev(int *anchor, const char *name, int *unit,
749 const char *resname, const char *value);
750 int resource_unset_value(const char *name, int unit, const char *resname);
751
752 /*
753 * Functions for maintaining and checking consistency of
754 * bus information exported to userspace.
755 */
756 int bus_data_generation_check(int generation);
757 void bus_data_generation_update(void);
758
759 /**
760 * Some convenience defines for probe routines to return. These are just
761 * suggested values, and there's nothing magical about them.
762 * BUS_PROBE_SPECIFIC is for devices that cannot be reprobed, and that no
763 * possible other driver may exist (typically legacy drivers who don't follow
764 * all the rules, or special needs drivers). BUS_PROBE_VENDOR is the
765 * suggested value that vendor supplied drivers use. This is for source or
766 * binary drivers that are not yet integrated into the FreeBSD tree. Its use
767 * in the base OS is prohibited. BUS_PROBE_DEFAULT is the normal return value
768 * for drivers to use. It is intended that nearly all of the drivers in the
769 * tree should return this value. BUS_PROBE_LOW_PRIORITY are for drivers that
770 * have special requirements like when there are two drivers that support
771 * overlapping series of hardware devices. In this case the one that supports
772 * the older part of the line would return this value, while the one that
773 * supports the newer ones would return BUS_PROBE_DEFAULT. BUS_PROBE_GENERIC
774 * is for drivers that wish to have a generic form and a specialized form,
775 * like is done with the pci bus and the acpi pci bus. BUS_PROBE_HOOVER is
776 * for those buses that implement a generic device placeholder for devices on
777 * the bus that have no more specific driver for them (aka ugen).
778 * BUS_PROBE_NOWILDCARD or lower means that the device isn't really bidding
779 * for a device node, but accepts only devices that its parent has told it
780 * use this driver.
781 */
782 #define BUS_PROBE_SPECIFIC 0 /* Only I can use this device */
783 #define BUS_PROBE_VENDOR (-10) /* Vendor supplied driver */
784 #define BUS_PROBE_DEFAULT (-20) /* Base OS default driver */
785 #define BUS_PROBE_LOW_PRIORITY (-40) /* Older, less desirable drivers */
786 #define BUS_PROBE_GENERIC (-100) /* generic driver for dev */
787 #define BUS_PROBE_HOOVER (-1000000) /* Driver for any dev on bus */
788 #define BUS_PROBE_NOWILDCARD (-2000000000) /* No wildcard device matches */
789
790 /**
791 * During boot, the device tree is scanned multiple times. Each scan,
792 * or pass, drivers may be attached to devices. Each driver
793 * attachment is assigned a pass number. Drivers may only probe and
794 * attach to devices if their pass number is less than or equal to the
795 * current system-wide pass number. The default pass is the last pass
796 * and is used by most drivers. Drivers needed by the scheduler are
797 * probed in earlier passes.
798 */
799 #define BUS_PASS_ROOT 0 /* Used to attach root0. */
800 #define BUS_PASS_BUS 10 /* Buses and bridges. */
801 #define BUS_PASS_CPU 20 /* CPU devices. */
802 #define BUS_PASS_RESOURCE 30 /* Resource discovery. */
803 #define BUS_PASS_INTERRUPT 40 /* Interrupt controllers. */
804 #define BUS_PASS_TIMER 50 /* Timers and clocks. */
805 #define BUS_PASS_SCHEDULER 60 /* Start scheduler. */
806 #define BUS_PASS_SUPPORTDEV 100000 /* Drivers which support DEFAULT drivers. */
807 #define BUS_PASS_DEFAULT __INT_MAX /* Everything else. */
808
809 #define BUS_PASS_ORDER_FIRST 0
810 #define BUS_PASS_ORDER_EARLY 2
811 #define BUS_PASS_ORDER_MIDDLE 5
812 #define BUS_PASS_ORDER_LATE 7
813 #define BUS_PASS_ORDER_LAST 9
814
815 #define BUS_LOCATOR_ACPI "ACPI"
816 #define BUS_LOCATOR_FREEBSD "FreeBSD"
817 #define BUS_LOCATOR_UEFI "UEFI"
818 #define BUS_LOCATOR_OFW "OFW"
819
820 extern int bus_current_pass;
821
822 void bus_set_pass(int pass);
823
824 /**
825 * Routines to lock / unlock the newbus lock.
826 * Must be taken out to interact with newbus.
827 */
828 void bus_topo_lock(void);
829 void bus_topo_unlock(void);
830 struct mtx * bus_topo_mtx(void);
831 void bus_topo_assert(void);
832
833 /**
834 * Shorthands for constructing method tables.
835 */
836 #define DEVMETHOD KOBJMETHOD
837 #define DEVMETHOD_END KOBJMETHOD_END
838
839 /*
840 * Some common device interfaces.
841 */
842 #include "device_if.h"
843 #include "bus_if.h"
844
845 struct module;
846
847 int driver_module_handler(struct module *, int, void *);
848
849 /**
850 * Module support for automatically adding drivers to buses.
851 */
852 struct driver_module_data {
853 int (*dmd_chainevh)(struct module *, int, void *);
854 void *dmd_chainarg;
855 const char *dmd_busname;
856 kobj_class_t dmd_driver;
857 devclass_t *dmd_devclass;
858 int dmd_pass;
859 };
860
861 #define EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, \
862 order, pass) \
863 \
864 static struct driver_module_data name##_##busname##_driver_mod = { \
865 evh, arg, \
866 #busname, \
867 (kobj_class_t) &driver, \
868 NULL, \
869 pass \
870 }; \
871 \
872 static moduledata_t name##_##busname##_mod = { \
873 #busname "/" #name, \
874 driver_module_handler, \
875 &name##_##busname##_driver_mod \
876 }; \
877 DECLARE_MODULE(name##_##busname, name##_##busname##_mod, \
878 SI_SUB_DRIVERS, order)
879
880 #define EARLY_DRIVER_MODULE(name, busname, driver, evh, arg, pass) \
881 EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, \
882 SI_ORDER_MIDDLE, pass)
883
884 #define DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, order) \
885 EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, \
886 order, BUS_PASS_DEFAULT)
887
888 #define DRIVER_MODULE(name, busname, driver, evh, arg) \
889 EARLY_DRIVER_MODULE(name, busname, driver, evh, arg, \
890 BUS_PASS_DEFAULT)
891
892 /**
893 * Generic ivar accessor generation macros for bus drivers
894 */
895 #define __BUS_ACCESSOR(varp, var, ivarp, ivar, type) \
896 \
897 static __inline type varp ## _get_ ## var(device_t dev) \
898 { \
899 uintptr_t v; \
900 int e __diagused; \
901 e = BUS_READ_IVAR(device_get_parent(dev), dev, \
902 ivarp ## _IVAR_ ## ivar, &v); \
903 KASSERT(e == 0, ("%s failed for %s on bus %s, error = %d", \
904 __func__, device_get_nameunit(dev), \
905 device_get_nameunit(device_get_parent(dev)), e)); \
906 return ((type) v); \
907 } \
908 \
909 static __inline void varp ## _set_ ## var(device_t dev, type t) \
910 { \
911 uintptr_t v = (uintptr_t) t; \
912 int e __diagused; \
913 e = BUS_WRITE_IVAR(device_get_parent(dev), dev, \
914 ivarp ## _IVAR_ ## ivar, v); \
915 KASSERT(e == 0, ("%s failed for %s on bus %s, error = %d", \
916 __func__, device_get_nameunit(dev), \
917 device_get_nameunit(device_get_parent(dev)), e)); \
918 }
919
920 struct device_location_cache;
921 typedef struct device_location_cache device_location_cache_t;
922 device_location_cache_t *dev_wired_cache_init(void);
923 void dev_wired_cache_fini(device_location_cache_t *dcp);
924 bool dev_wired_cache_match(device_location_cache_t *dcp, device_t dev, const char *at);
925
926
927 /**
928 * Shorthand macros, taking resource argument
929 * Generated with sys/tools/bus_macro.sh
930 */
931
932 #define bus_barrier(r, o, l, f) \
933 bus_space_barrier((r)->r_bustag, (r)->r_bushandle, (o), (l), (f))
934 #define bus_poke_1(r, o, v) \
935 bus_space_poke_1((r)->r_bustag, (r)->r_bushandle, (o), (v))
936 #define bus_peek_1(r, o, vp) \
937 bus_space_peek_1((r)->r_bustag, (r)->r_bushandle, (o), (vp))
938 #define bus_read_1(r, o) \
939 bus_space_read_1((r)->r_bustag, (r)->r_bushandle, (o))
940 #define bus_read_multi_1(r, o, d, c) \
941 bus_space_read_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
942 #define bus_read_region_1(r, o, d, c) \
943 bus_space_read_region_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
944 #define bus_set_multi_1(r, o, v, c) \
945 bus_space_set_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
946 #define bus_set_region_1(r, o, v, c) \
947 bus_space_set_region_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
948 #define bus_write_1(r, o, v) \
949 bus_space_write_1((r)->r_bustag, (r)->r_bushandle, (o), (v))
950 #define bus_write_multi_1(r, o, d, c) \
951 bus_space_write_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
952 #define bus_write_region_1(r, o, d, c) \
953 bus_space_write_region_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
954 #define bus_read_stream_1(r, o) \
955 bus_space_read_stream_1((r)->r_bustag, (r)->r_bushandle, (o))
956 #define bus_read_multi_stream_1(r, o, d, c) \
957 bus_space_read_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
958 #define bus_read_region_stream_1(r, o, d, c) \
959 bus_space_read_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
960 #define bus_set_multi_stream_1(r, o, v, c) \
961 bus_space_set_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
962 #define bus_set_region_stream_1(r, o, v, c) \
963 bus_space_set_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
964 #define bus_write_stream_1(r, o, v) \
965 bus_space_write_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v))
966 #define bus_write_multi_stream_1(r, o, d, c) \
967 bus_space_write_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
968 #define bus_write_region_stream_1(r, o, d, c) \
969 bus_space_write_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
970 #define bus_poke_2(r, o, v) \
971 bus_space_poke_2((r)->r_bustag, (r)->r_bushandle, (o), (v))
972 #define bus_peek_2(r, o, vp) \
973 bus_space_peek_2((r)->r_bustag, (r)->r_bushandle, (o), (vp))
974 #define bus_read_2(r, o) \
975 bus_space_read_2((r)->r_bustag, (r)->r_bushandle, (o))
976 #define bus_read_multi_2(r, o, d, c) \
977 bus_space_read_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
978 #define bus_read_region_2(r, o, d, c) \
979 bus_space_read_region_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
980 #define bus_set_multi_2(r, o, v, c) \
981 bus_space_set_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
982 #define bus_set_region_2(r, o, v, c) \
983 bus_space_set_region_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
984 #define bus_write_2(r, o, v) \
985 bus_space_write_2((r)->r_bustag, (r)->r_bushandle, (o), (v))
986 #define bus_write_multi_2(r, o, d, c) \
987 bus_space_write_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
988 #define bus_write_region_2(r, o, d, c) \
989 bus_space_write_region_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
990 #define bus_read_stream_2(r, o) \
991 bus_space_read_stream_2((r)->r_bustag, (r)->r_bushandle, (o))
992 #define bus_read_multi_stream_2(r, o, d, c) \
993 bus_space_read_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
994 #define bus_read_region_stream_2(r, o, d, c) \
995 bus_space_read_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
996 #define bus_set_multi_stream_2(r, o, v, c) \
997 bus_space_set_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
998 #define bus_set_region_stream_2(r, o, v, c) \
999 bus_space_set_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1000 #define bus_write_stream_2(r, o, v) \
1001 bus_space_write_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v))
1002 #define bus_write_multi_stream_2(r, o, d, c) \
1003 bus_space_write_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1004 #define bus_write_region_stream_2(r, o, d, c) \
1005 bus_space_write_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1006 #define bus_poke_4(r, o, v) \
1007 bus_space_poke_4((r)->r_bustag, (r)->r_bushandle, (o), (v))
1008 #define bus_peek_4(r, o, vp) \
1009 bus_space_peek_4((r)->r_bustag, (r)->r_bushandle, (o), (vp))
1010 #define bus_read_4(r, o) \
1011 bus_space_read_4((r)->r_bustag, (r)->r_bushandle, (o))
1012 #define bus_read_multi_4(r, o, d, c) \
1013 bus_space_read_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1014 #define bus_read_region_4(r, o, d, c) \
1015 bus_space_read_region_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1016 #define bus_set_multi_4(r, o, v, c) \
1017 bus_space_set_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1018 #define bus_set_region_4(r, o, v, c) \
1019 bus_space_set_region_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1020 #define bus_write_4(r, o, v) \
1021 bus_space_write_4((r)->r_bustag, (r)->r_bushandle, (o), (v))
1022 #define bus_write_multi_4(r, o, d, c) \
1023 bus_space_write_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1024 #define bus_write_region_4(r, o, d, c) \
1025 bus_space_write_region_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1026 #define bus_read_stream_4(r, o) \
1027 bus_space_read_stream_4((r)->r_bustag, (r)->r_bushandle, (o))
1028 #define bus_read_multi_stream_4(r, o, d, c) \
1029 bus_space_read_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1030 #define bus_read_region_stream_4(r, o, d, c) \
1031 bus_space_read_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1032 #define bus_set_multi_stream_4(r, o, v, c) \
1033 bus_space_set_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1034 #define bus_set_region_stream_4(r, o, v, c) \
1035 bus_space_set_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1036 #define bus_write_stream_4(r, o, v) \
1037 bus_space_write_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v))
1038 #define bus_write_multi_stream_4(r, o, d, c) \
1039 bus_space_write_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1040 #define bus_write_region_stream_4(r, o, d, c) \
1041 bus_space_write_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1042 #define bus_poke_8(r, o, v) \
1043 bus_space_poke_8((r)->r_bustag, (r)->r_bushandle, (o), (v))
1044 #define bus_peek_8(r, o, vp) \
1045 bus_space_peek_8((r)->r_bustag, (r)->r_bushandle, (o), (vp))
1046 #define bus_read_8(r, o) \
1047 bus_space_read_8((r)->r_bustag, (r)->r_bushandle, (o))
1048 #define bus_read_multi_8(r, o, d, c) \
1049 bus_space_read_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1050 #define bus_read_region_8(r, o, d, c) \
1051 bus_space_read_region_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1052 #define bus_set_multi_8(r, o, v, c) \
1053 bus_space_set_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1054 #define bus_set_region_8(r, o, v, c) \
1055 bus_space_set_region_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1056 #define bus_write_8(r, o, v) \
1057 bus_space_write_8((r)->r_bustag, (r)->r_bushandle, (o), (v))
1058 #define bus_write_multi_8(r, o, d, c) \
1059 bus_space_write_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1060 #define bus_write_region_8(r, o, d, c) \
1061 bus_space_write_region_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1062 #define bus_read_stream_8(r, o) \
1063 bus_space_read_stream_8((r)->r_bustag, (r)->r_bushandle, (o))
1064 #define bus_read_multi_stream_8(r, o, d, c) \
1065 bus_space_read_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1066 #define bus_read_region_stream_8(r, o, d, c) \
1067 bus_space_read_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1068 #define bus_set_multi_stream_8(r, o, v, c) \
1069 bus_space_set_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1070 #define bus_set_region_stream_8(r, o, v, c) \
1071 bus_space_set_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1072 #define bus_write_stream_8(r, o, v) \
1073 bus_space_write_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v))
1074 #define bus_write_multi_stream_8(r, o, d, c) \
1075 bus_space_write_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1076 #define bus_write_region_stream_8(r, o, d, c) \
1077 bus_space_write_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1078 #endif /* _KERNEL */
1079
1080 #endif /* !_SYS_BUS_H_ */
1081