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 #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 */
175 typedef void (*dev_lookup_fn)(void *arg, const char *name,
176 device_t *result);
177 EVENTHANDLER_DECLARE(dev_lookup, dev_lookup_fn);
178
179 /**
180 * @brief A device driver.
181 *
182 * Provides an abstraction layer for driver dispatch.
183 */
184 typedef 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 */
206 typedef 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 */
250 typedef int driver_filter_t(void*);
251 typedef 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 */
269 enum 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_MD1 = 4096, /* flag reserved for MD use */
281 INTR_MD2 = 8192, /* flag reserved for MD use */
282 INTR_MD3 = 16384, /* flag reserved for MD use */
283 INTR_MD4 = 32768 /* flag reserved for MD use */
284 };
285
286 enum intr_trigger {
287 INTR_TRIGGER_INVALID = -1,
288 INTR_TRIGGER_CONFORM = 0,
289 INTR_TRIGGER_EDGE = 1,
290 INTR_TRIGGER_LEVEL = 2
291 };
292
293 enum intr_polarity {
294 INTR_POLARITY_CONFORM = 0,
295 INTR_POLARITY_HIGH = 1,
296 INTR_POLARITY_LOW = 2
297 };
298
299 /**
300 * CPU sets supported by bus_get_cpus(). Note that not all sets may be
301 * supported for a given device. If a request is not supported by a
302 * device (or its parents), then bus_get_cpus() will fail with EINVAL.
303 */
304 enum cpu_sets {
305 LOCAL_CPUS = 0,
306 INTR_CPUS
307 };
308
309 typedef int (*devop_t)(void);
310
311 /**
312 * @brief This structure is deprecated.
313 *
314 * Use the kobj(9) macro DEFINE_CLASS to
315 * declare classes which implement device drivers.
316 */
317 struct driver {
318 KOBJ_CLASS_FIELDS;
319 };
320
321 struct resource;
322
323 /**
324 * @brief A resource mapping.
325 */
326 struct resource_map {
327 bus_space_tag_t r_bustag;
328 bus_space_handle_t r_bushandle;
329 bus_size_t r_size;
330 void *r_vaddr;
331 };
332
333 /**
334 * @brief Optional properties of a resource mapping request.
335 */
336 struct resource_map_request {
337 size_t size;
338 rman_res_t offset;
339 rman_res_t length;
340 vm_memattr_t memattr;
341 };
342
343 void resource_init_map_request_impl(struct resource_map_request *_args,
344 size_t _sz);
345 #define resource_init_map_request(rmr) \
346 resource_init_map_request_impl((rmr), sizeof(*(rmr)))
347 int resource_validate_map_request(struct resource *r,
348 struct resource_map_request *in, struct resource_map_request *out,
349 rman_res_t *startp, rman_res_t *lengthp);
350
351 /*
352 * Definitions for drivers which need to keep simple lists of resources
353 * for their child devices.
354 */
355
356 /**
357 * @brief An entry for a single resource in a resource list.
358 */
359 struct resource_list_entry {
360 STAILQ_ENTRY(resource_list_entry) link;
361 int type; /**< @brief type argument to alloc_resource */
362 int rid; /**< @brief resource identifier */
363 int flags; /**< @brief resource flags */
364 struct resource *res; /**< @brief the real resource when allocated */
365 rman_res_t start; /**< @brief start of resource range */
366 rman_res_t end; /**< @brief end of resource range */
367 rman_res_t count; /**< @brief count within range */
368 };
369 STAILQ_HEAD(resource_list, resource_list_entry);
370
371 #define RLE_RESERVED 0x0001 /* Reserved by the parent bus. */
372 #define RLE_ALLOCATED 0x0002 /* Reserved resource is allocated. */
373 #define RLE_PREFETCH 0x0004 /* Resource is a prefetch range. */
374
375 void resource_list_init(struct resource_list *rl);
376 void resource_list_free(struct resource_list *rl);
377 struct resource_list_entry *
378 resource_list_add(struct resource_list *rl,
379 int type, int rid,
380 rman_res_t start, rman_res_t end, rman_res_t count);
381 int resource_list_add_next(struct resource_list *rl,
382 int type,
383 rman_res_t start, rman_res_t end, rman_res_t count);
384 int resource_list_busy(struct resource_list *rl,
385 int type, int rid);
386 int resource_list_reserved(struct resource_list *rl, int type, int rid);
387 struct resource_list_entry*
388 resource_list_find(struct resource_list *rl,
389 int type, int rid);
390 void resource_list_delete(struct resource_list *rl,
391 int type, int rid);
392 struct resource *
393 resource_list_alloc(struct resource_list *rl,
394 device_t bus, device_t child,
395 int type, int *rid,
396 rman_res_t start, rman_res_t end,
397 rman_res_t count, u_int flags);
398 int resource_list_release(struct resource_list *rl,
399 device_t bus, device_t child,
400 struct resource *res);
401 int resource_list_release_active(struct resource_list *rl,
402 device_t bus, device_t child,
403 int type);
404 struct resource *
405 resource_list_reserve(struct resource_list *rl,
406 device_t bus, device_t child,
407 int type, int *rid,
408 rman_res_t start, rman_res_t end,
409 rman_res_t count, u_int flags);
410 int resource_list_unreserve(struct resource_list *rl,
411 device_t bus, device_t child,
412 int type, int rid);
413 void resource_list_purge(struct resource_list *rl);
414 int resource_list_print_type(struct resource_list *rl,
415 const char *name, int type,
416 const char *format);
417
418 /*
419 * The root bus, to which all top-level buses are attached.
420 */
421 extern device_t root_bus;
422 extern devclass_t root_devclass;
423 void root_bus_configure(void);
424
425 /*
426 * Useful functions for implementing buses.
427 */
428
429 struct _cpuset;
430
431 int bus_generic_activate_resource(device_t dev, device_t child,
432 struct resource *r);
433 device_t
434 bus_generic_add_child(device_t dev, u_int order, const char *name,
435 int unit);
436 int bus_generic_adjust_resource(device_t bus, device_t child,
437 struct resource *r, rman_res_t start,
438 rman_res_t end);
439 struct resource *
440 bus_generic_alloc_resource(device_t bus, device_t child, int type,
441 int *rid, rman_res_t start, rman_res_t end,
442 rman_res_t count, u_int flags);
443 int bus_generic_translate_resource(device_t dev, int type, rman_res_t start,
444 rman_res_t *newstart);
445 int bus_generic_attach(device_t dev);
446 int bus_generic_bind_intr(device_t dev, device_t child,
447 struct resource *irq, int cpu);
448 int bus_generic_child_location(device_t dev, device_t child, struct sbuf *sb);
449 int bus_generic_child_pnpinfo(device_t dev, device_t child, struct sbuf *sb);
450 int bus_generic_child_present(device_t dev, device_t child);
451 int bus_generic_config_intr(device_t, int, enum intr_trigger,
452 enum intr_polarity);
453 int bus_generic_describe_intr(device_t dev, device_t child,
454 struct resource *irq, void *cookie,
455 const char *descr);
456 int bus_generic_deactivate_resource(device_t dev, device_t child,
457 struct resource *r);
458 int bus_generic_detach(device_t dev);
459 void bus_generic_driver_added(device_t dev, driver_t *driver);
460 int bus_generic_get_cpus(device_t dev, device_t child, enum cpu_sets op,
461 size_t setsize, struct _cpuset *cpuset);
462 bus_dma_tag_t
463 bus_generic_get_dma_tag(device_t dev, device_t child);
464 bus_space_tag_t
465 bus_generic_get_bus_tag(device_t dev, device_t child);
466 int bus_generic_get_domain(device_t dev, device_t child, int *domain);
467 ssize_t bus_generic_get_property(device_t dev, device_t child,
468 const char *propname, void *propvalue,
469 size_t size, device_property_type_t type);
470 struct resource_list *
471 bus_generic_get_resource_list(device_t, device_t);
472 int bus_generic_map_resource(device_t dev, device_t child,
473 struct resource *r,
474 struct resource_map_request *args,
475 struct resource_map *map);
476 void bus_generic_new_pass(device_t dev);
477 int bus_print_child_header(device_t dev, device_t child);
478 int bus_print_child_domain(device_t dev, device_t child);
479 int bus_print_child_footer(device_t dev, device_t child);
480 int bus_generic_print_child(device_t dev, device_t child);
481 int bus_generic_probe(device_t dev);
482 int bus_generic_read_ivar(device_t dev, device_t child, int which,
483 uintptr_t *result);
484 int bus_generic_release_resource(device_t bus, device_t child,
485 struct resource *r);
486 int bus_generic_resume(device_t dev);
487 int bus_generic_resume_child(device_t dev, device_t child);
488 int bus_generic_setup_intr(device_t dev, device_t child,
489 struct resource *irq, int flags,
490 driver_filter_t *filter, driver_intr_t *intr,
491 void *arg, void **cookiep);
492
493 struct resource *
494 bus_generic_rl_alloc_resource (device_t, device_t, int, int *,
495 rman_res_t, rman_res_t, rman_res_t, u_int);
496 void bus_generic_rl_delete_resource (device_t, device_t, int, int);
497 int bus_generic_rl_get_resource (device_t, device_t, int, int, rman_res_t *,
498 rman_res_t *);
499 int bus_generic_rl_set_resource (device_t, device_t, int, int, rman_res_t,
500 rman_res_t);
501 int bus_generic_rl_release_resource (device_t, device_t, struct resource *);
502 struct resource *
503 bus_generic_rman_alloc_resource(device_t dev, device_t child, int type,
504 int *rid, rman_res_t start,
505 rman_res_t end, rman_res_t count,
506 u_int flags);
507 int bus_generic_rman_adjust_resource(device_t dev, device_t child,
508 struct resource *r, rman_res_t start,
509 rman_res_t end);
510 int bus_generic_rman_release_resource(device_t dev, device_t child,
511 struct resource *r);
512 int bus_generic_rman_activate_resource(device_t dev, device_t child,
513 struct resource *r);
514 int bus_generic_rman_deactivate_resource(device_t dev, device_t child,
515 struct resource *r);
516
517 int bus_generic_shutdown(device_t dev);
518 int bus_generic_suspend(device_t dev);
519 int bus_generic_suspend_child(device_t dev, device_t child);
520 int bus_generic_teardown_intr(device_t dev, device_t child,
521 struct resource *irq, void *cookie);
522 int bus_generic_suspend_intr(device_t dev, device_t child,
523 struct resource *irq);
524 int bus_generic_resume_intr(device_t dev, device_t child,
525 struct resource *irq);
526 int bus_generic_unmap_resource(device_t dev, device_t child,
527 struct resource *r,
528 struct resource_map *map);
529 int bus_generic_write_ivar(device_t dev, device_t child, int which,
530 uintptr_t value);
531 int bus_generic_get_device_path(device_t bus, device_t child, const char *locator,
532 struct sbuf *sb);
533 int bus_helper_reset_post(device_t dev, int flags);
534 int bus_helper_reset_prepare(device_t dev, int flags);
535 int bus_null_rescan(device_t dev);
536
537 /*
538 * Wrapper functions for the BUS_*_RESOURCE methods to make client code
539 * a little simpler.
540 */
541
542 struct resource_spec {
543 int type;
544 int rid;
545 int flags;
546 };
547 #define RESOURCE_SPEC_END {-1, 0, 0}
548
549 int bus_alloc_resources(device_t dev, struct resource_spec *rs,
550 struct resource **res);
551 void bus_release_resources(device_t dev, const struct resource_spec *rs,
552 struct resource **res);
553
554 int bus_adjust_resource(device_t child, struct resource *r,
555 rman_res_t start, rman_res_t end);
556 int bus_translate_resource(device_t child, int type, rman_res_t start,
557 rman_res_t *newstart);
558 struct resource *bus_alloc_resource(device_t dev, int type, int *rid,
559 rman_res_t start, rman_res_t end,
560 rman_res_t count, u_int flags);
561 int bus_activate_resource(device_t dev, struct resource *r);
562 int bus_deactivate_resource(device_t dev, struct resource *r);
563 int bus_map_resource(device_t dev, struct resource *r,
564 struct resource_map_request *args,
565 struct resource_map *map);
566 int bus_unmap_resource(device_t dev, struct resource *r,
567 struct resource_map *map);
568 int bus_get_cpus(device_t dev, enum cpu_sets op, size_t setsize,
569 struct _cpuset *cpuset);
570 bus_dma_tag_t bus_get_dma_tag(device_t dev);
571 bus_space_tag_t bus_get_bus_tag(device_t dev);
572 int bus_get_domain(device_t dev, int *domain);
573 int bus_release_resource(device_t dev, struct resource *r);
574 int bus_free_resource(device_t dev, int type, struct resource *r);
575 int bus_setup_intr(device_t dev, struct resource *r, int flags,
576 driver_filter_t filter, driver_intr_t handler,
577 void *arg, void **cookiep);
578 int bus_teardown_intr(device_t dev, struct resource *r, void *cookie);
579 int bus_suspend_intr(device_t dev, struct resource *r);
580 int bus_resume_intr(device_t dev, struct resource *r);
581 int bus_bind_intr(device_t dev, struct resource *r, int cpu);
582 int bus_describe_intr(device_t dev, struct resource *irq, void *cookie,
583 const char *fmt, ...) __printflike(4, 5);
584 int bus_set_resource(device_t dev, int type, int rid,
585 rman_res_t start, rman_res_t count);
586 int bus_get_resource(device_t dev, int type, int rid,
587 rman_res_t *startp, rman_res_t *countp);
588 rman_res_t bus_get_resource_start(device_t dev, int type, int rid);
589 rman_res_t bus_get_resource_count(device_t dev, int type, int rid);
590 void bus_delete_resource(device_t dev, int type, int rid);
591 int bus_child_present(device_t child);
592 int bus_child_pnpinfo(device_t child, struct sbuf *sb);
593 int bus_child_location(device_t child, struct sbuf *sb);
594 void bus_enumerate_hinted_children(device_t bus);
595 int bus_delayed_attach_children(device_t bus);
596
597 static __inline struct resource *
bus_alloc_resource_any(device_t dev,int type,int * rid,u_int flags)598 bus_alloc_resource_any(device_t dev, int type, int *rid, u_int flags)
599 {
600 return (bus_alloc_resource(dev, type, rid, 0, ~0, 1, flags));
601 }
602
603 static __inline struct resource *
bus_alloc_resource_anywhere(device_t dev,int type,int * rid,rman_res_t count,u_int flags)604 bus_alloc_resource_anywhere(device_t dev, int type, int *rid,
605 rman_res_t count, u_int flags)
606 {
607 return (bus_alloc_resource(dev, type, rid, 0, ~0, count, flags));
608 }
609
610 /* Compat shims for simpler bus resource API. */
611 int bus_adjust_resource_old(device_t child, int type, struct resource *r,
612 rman_res_t start, rman_res_t end);
613 int bus_activate_resource_old(device_t dev, int type, int rid,
614 struct resource *r);
615 int bus_deactivate_resource_old(device_t dev, int type, int rid,
616 struct resource *r);
617 int bus_map_resource_old(device_t dev, int type, struct resource *r,
618 struct resource_map_request *args,
619 struct resource_map *map);
620 int bus_unmap_resource_old(device_t dev, int type, struct resource *r,
621 struct resource_map *map);
622 int bus_release_resource_old(device_t dev, int type, int rid,
623 struct resource *r);
624
625 #define _BUS_API_MACRO(_1, _2, _3, _4, _5, NAME, ...) NAME
626
627 #define bus_adjust_resource(...) \
628 _BUS_API_MACRO(__VA_ARGS__, bus_adjust_resource_old, \
629 bus_adjust_resource)(__VA_ARGS__)
630
631 #define bus_activate_resource(...) \
632 _BUS_API_MACRO(__VA_ARGS__, INVALID, bus_activate_resource_old, \
633 INVALID, bus_activate_resource)(__VA_ARGS__)
634
635 #define bus_deactivate_resource(...) \
636 _BUS_API_MACRO(__VA_ARGS__, INVALID, bus_deactivate_resource_old, \
637 INVALID, bus_deactivate_resource)(__VA_ARGS__)
638
639 #define bus_map_resource(...) \
640 _BUS_API_MACRO(__VA_ARGS__, bus_map_resource_old, \
641 bus_map_resource)(__VA_ARGS__)
642
643 #define bus_unmap_resource(...) \
644 _BUS_API_MACRO(__VA_ARGS__, INVALID, bus_unmap_resource_old, \
645 bus_unmap_resource)(__VA_ARGS__)
646
647 #define bus_release_resource(...) \
648 _BUS_API_MACRO(__VA_ARGS__, INVALID, bus_release_resource_old, \
649 INVALID, bus_release_resource)(__VA_ARGS__)
650
651 /*
652 * Access functions for device.
653 */
654 device_t device_add_child(device_t dev, const char *name, int unit);
655 device_t device_add_child_ordered(device_t dev, u_int order,
656 const char *name, int unit);
657 void device_busy(device_t dev);
658 int device_delete_child(device_t dev, device_t child);
659 int device_delete_children(device_t dev);
660 int device_attach(device_t dev);
661 int device_detach(device_t dev);
662 void device_disable(device_t dev);
663 void device_enable(device_t dev);
664 device_t device_find_child(device_t dev, const char *classname,
665 int unit);
666 const char *device_get_desc(device_t dev);
667 devclass_t device_get_devclass(device_t dev);
668 driver_t *device_get_driver(device_t dev);
669 u_int32_t device_get_flags(device_t dev);
670 device_t device_get_parent(device_t dev);
671 int device_get_children(device_t dev, device_t **listp, int *countp);
672 void *device_get_ivars(device_t dev);
673 void device_set_ivars(device_t dev, void *ivars);
674 const char *device_get_name(device_t dev);
675 const char *device_get_nameunit(device_t dev);
676 void *device_get_softc(device_t dev);
677 device_state_t device_get_state(device_t dev);
678 int device_get_unit(device_t dev);
679 struct sysctl_ctx_list *device_get_sysctl_ctx(device_t dev);
680 struct sysctl_oid *device_get_sysctl_tree(device_t dev);
681 int device_has_quiet_children(device_t dev);
682 int device_is_alive(device_t dev); /* did probe succeed? */
683 int device_is_attached(device_t dev); /* did attach succeed? */
684 int device_is_enabled(device_t dev);
685 int device_is_suspended(device_t dev);
686 int device_is_quiet(device_t dev);
687 device_t device_lookup_by_name(const char *name);
688 int device_print_prettyname(device_t dev);
689 int device_printf(device_t dev, const char *, ...) __printflike(2, 3);
690 int device_log(device_t dev, int pri, const char *, ...) __printflike(3, 4);
691 int device_probe(device_t dev);
692 int device_probe_and_attach(device_t dev);
693 int device_probe_child(device_t bus, device_t dev);
694 int device_quiesce(device_t dev);
695 void device_quiet(device_t dev);
696 void device_quiet_children(device_t dev);
697 void device_set_desc(device_t dev, const char* desc);
698 void device_set_descf(device_t dev, const char* fmt, ...) __printflike(2, 3);
699 void device_set_desc_copy(device_t dev, const char* desc);
700 int device_set_devclass(device_t dev, const char *classname);
701 int device_set_devclass_fixed(device_t dev, const char *classname);
702 bool device_is_devclass_fixed(device_t dev);
703 int device_set_driver(device_t dev, driver_t *driver);
704 void device_set_flags(device_t dev, u_int32_t flags);
705 void device_set_softc(device_t dev, void *softc);
706 void device_free_softc(void *softc);
707 void device_claim_softc(device_t dev);
708 int device_set_unit(device_t dev, int unit); /* XXX DONT USE XXX */
709 int device_shutdown(device_t dev);
710 void device_unbusy(device_t dev);
711 void device_verbose(device_t dev);
712 ssize_t device_get_property(device_t dev, const char *prop, void *val,
713 size_t sz, device_property_type_t type);
714 bool device_has_property(device_t dev, const char *prop);
715
716 /*
717 * Access functions for devclass.
718 */
719 int devclass_add_driver(devclass_t dc, driver_t *driver,
720 int pass, devclass_t *dcp);
721 devclass_t devclass_create(const char *classname);
722 int devclass_delete_driver(devclass_t busclass, driver_t *driver);
723 devclass_t devclass_find(const char *classname);
724 const char *devclass_get_name(devclass_t dc);
725 device_t devclass_get_device(devclass_t dc, int unit);
726 void *devclass_get_softc(devclass_t dc, int unit);
727 int devclass_get_devices(devclass_t dc, device_t **listp, int *countp);
728 int devclass_get_drivers(devclass_t dc, driver_t ***listp, int *countp);
729 int devclass_get_count(devclass_t dc);
730 int devclass_get_maxunit(devclass_t dc);
731 int devclass_find_free_unit(devclass_t dc, int unit);
732 void devclass_set_parent(devclass_t dc, devclass_t pdc);
733 devclass_t devclass_get_parent(devclass_t dc);
734 struct sysctl_ctx_list *devclass_get_sysctl_ctx(devclass_t dc);
735 struct sysctl_oid *devclass_get_sysctl_tree(devclass_t dc);
736
737 /*
738 * Access functions for device resources.
739 */
740 int resource_int_value(const char *name, int unit, const char *resname,
741 int *result);
742 int resource_long_value(const char *name, int unit, const char *resname,
743 long *result);
744 int resource_string_value(const char *name, int unit, const char *resname,
745 const char **result);
746 int resource_disabled(const char *name, int unit);
747 int resource_find_match(int *anchor, const char **name, int *unit,
748 const char *resname, const char *value);
749 int resource_find_dev(int *anchor, const char *name, int *unit,
750 const char *resname, const char *value);
751 int resource_unset_value(const char *name, int unit, const char *resname);
752
753 /*
754 * Functions for maintaining and checking consistency of
755 * bus information exported to userspace.
756 */
757 int bus_data_generation_check(int generation);
758 void bus_data_generation_update(void);
759
760 /**
761 * Some convenience defines for probe routines to return. These are just
762 * suggested values, and there's nothing magical about them.
763 * BUS_PROBE_SPECIFIC is for devices that cannot be reprobed, and that no
764 * possible other driver may exist (typically legacy drivers who don't follow
765 * all the rules, or special needs drivers). BUS_PROBE_VENDOR is the
766 * suggested value that vendor supplied drivers use. This is for source or
767 * binary drivers that are not yet integrated into the FreeBSD tree. Its use
768 * in the base OS is prohibited. BUS_PROBE_DEFAULT is the normal return value
769 * for drivers to use. It is intended that nearly all of the drivers in the
770 * tree should return this value. BUS_PROBE_LOW_PRIORITY are for drivers that
771 * have special requirements like when there are two drivers that support
772 * overlapping series of hardware devices. In this case the one that supports
773 * the older part of the line would return this value, while the one that
774 * supports the newer ones would return BUS_PROBE_DEFAULT. BUS_PROBE_GENERIC
775 * is for drivers that wish to have a generic form and a specialized form,
776 * like is done with the pci bus and the acpi pci bus. BUS_PROBE_HOOVER is
777 * for those buses that implement a generic device placeholder for devices on
778 * the bus that have no more specific driver for them (aka ugen).
779 * BUS_PROBE_NOWILDCARD or lower means that the device isn't really bidding
780 * for a device node, but accepts only devices that its parent has told it
781 * use this driver.
782 */
783 #define BUS_PROBE_SPECIFIC 0 /* Only I can use this device */
784 #define BUS_PROBE_VENDOR (-10) /* Vendor supplied driver */
785 #define BUS_PROBE_DEFAULT (-20) /* Base OS default driver */
786 #define BUS_PROBE_LOW_PRIORITY (-40) /* Older, less desirable drivers */
787 #define BUS_PROBE_GENERIC (-100) /* generic driver for dev */
788 #define BUS_PROBE_HOOVER (-1000000) /* Driver for any dev on bus */
789 #define BUS_PROBE_NOWILDCARD (-2000000000) /* No wildcard device matches */
790
791 /**
792 * During boot, the device tree is scanned multiple times. Each scan,
793 * or pass, drivers may be attached to devices. Each driver
794 * attachment is assigned a pass number. Drivers may only probe and
795 * attach to devices if their pass number is less than or equal to the
796 * current system-wide pass number. The default pass is the last pass
797 * and is used by most drivers. Drivers needed by the scheduler are
798 * probed in earlier passes.
799 */
800 #define BUS_PASS_ROOT 0 /* Used to attach root0. */
801 #define BUS_PASS_BUS 10 /* Buses and bridges. */
802 #define BUS_PASS_CPU 20 /* CPU devices. */
803 #define BUS_PASS_RESOURCE 30 /* Resource discovery. */
804 #define BUS_PASS_INTERRUPT 40 /* Interrupt controllers. */
805 #define BUS_PASS_TIMER 50 /* Timers and clocks. */
806 #define BUS_PASS_SCHEDULER 60 /* Start scheduler. */
807 #define BUS_PASS_SUPPORTDEV 100000 /* Drivers which support DEFAULT drivers. */
808 #define BUS_PASS_DEFAULT __INT_MAX /* Everything else. */
809
810 #define BUS_PASS_ORDER_FIRST 0
811 #define BUS_PASS_ORDER_EARLY 2
812 #define BUS_PASS_ORDER_MIDDLE 5
813 #define BUS_PASS_ORDER_LATE 7
814 #define BUS_PASS_ORDER_LAST 9
815
816 #define BUS_LOCATOR_ACPI "ACPI"
817 #define BUS_LOCATOR_FREEBSD "FreeBSD"
818 #define BUS_LOCATOR_UEFI "UEFI"
819 #define BUS_LOCATOR_OFW "OFW"
820
821 extern int bus_current_pass;
822
823 void bus_set_pass(int pass);
824
825 /**
826 * Routines to lock / unlock the newbus lock.
827 * Must be taken out to interact with newbus.
828 */
829 void bus_topo_lock(void);
830 void bus_topo_unlock(void);
831 struct mtx * bus_topo_mtx(void);
832 void bus_topo_assert(void);
833
834 /**
835 * Shorthands for constructing method tables.
836 */
837 #define DEVMETHOD KOBJMETHOD
838 #define DEVMETHOD_END KOBJMETHOD_END
839
840 /*
841 * Some common device interfaces.
842 */
843 #include "device_if.h"
844 #include "bus_if.h"
845
846 struct module;
847
848 int driver_module_handler(struct module *, int, void *);
849
850 /**
851 * Module support for automatically adding drivers to buses.
852 */
853 struct driver_module_data {
854 int (*dmd_chainevh)(struct module *, int, void *);
855 void *dmd_chainarg;
856 const char *dmd_busname;
857 kobj_class_t dmd_driver;
858 devclass_t *dmd_devclass;
859 int dmd_pass;
860 };
861
862 #define EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, \
863 order, pass) \
864 \
865 static struct driver_module_data name##_##busname##_driver_mod = { \
866 evh, arg, \
867 #busname, \
868 (kobj_class_t) &driver, \
869 NULL, \
870 pass \
871 }; \
872 \
873 static moduledata_t name##_##busname##_mod = { \
874 #busname "/" #name, \
875 driver_module_handler, \
876 &name##_##busname##_driver_mod \
877 }; \
878 DECLARE_MODULE(name##_##busname, name##_##busname##_mod, \
879 SI_SUB_DRIVERS, order)
880
881 #define EARLY_DRIVER_MODULE(name, busname, driver, evh, arg, pass) \
882 EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, \
883 SI_ORDER_MIDDLE, pass)
884
885 #define DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, order) \
886 EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, \
887 order, BUS_PASS_DEFAULT)
888
889 #define DRIVER_MODULE(name, busname, driver, evh, arg) \
890 EARLY_DRIVER_MODULE(name, busname, driver, evh, arg, \
891 BUS_PASS_DEFAULT)
892
893 /**
894 * Generic ivar accessor generation macros for bus drivers
895 */
896 #define __BUS_ACCESSOR(varp, var, ivarp, ivar, type) \
897 \
898 static __inline type varp ## _get_ ## var(device_t dev) \
899 { \
900 uintptr_t v; \
901 int e __diagused; \
902 e = BUS_READ_IVAR(device_get_parent(dev), dev, \
903 ivarp ## _IVAR_ ## ivar, &v); \
904 KASSERT(e == 0, ("%s failed for %s on bus %s, error = %d", \
905 __func__, device_get_nameunit(dev), \
906 device_get_nameunit(device_get_parent(dev)), e)); \
907 return ((type) v); \
908 } \
909 \
910 static __inline void varp ## _set_ ## var(device_t dev, type t) \
911 { \
912 uintptr_t v = (uintptr_t) t; \
913 int e __diagused; \
914 e = BUS_WRITE_IVAR(device_get_parent(dev), dev, \
915 ivarp ## _IVAR_ ## ivar, v); \
916 KASSERT(e == 0, ("%s failed for %s on bus %s, error = %d", \
917 __func__, device_get_nameunit(dev), \
918 device_get_nameunit(device_get_parent(dev)), e)); \
919 }
920
921 struct device_location_cache;
922 typedef struct device_location_cache device_location_cache_t;
923 device_location_cache_t *dev_wired_cache_init(void);
924 void dev_wired_cache_fini(device_location_cache_t *dcp);
925 bool dev_wired_cache_match(device_location_cache_t *dcp, device_t dev, const char *at);
926
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_ */
1082