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 DS_BUSY = 40 /**< @brief device is open */
60 } device_state_t;
61
62 /**
63 * @brief Device proprty types.
64 *
65 * Those are used by bus logic to encode requested properties,
66 * e.g. in DT all properties are stored as BE and need to be converted
67 * to host endianness.
68 */
69 typedef enum device_property_type {
70 DEVICE_PROP_ANY = 0,
71 DEVICE_PROP_BUFFER = 1,
72 DEVICE_PROP_UINT32 = 2,
73 DEVICE_PROP_UINT64 = 3,
74 DEVICE_PROP_HANDLE = 4,
75 } device_property_type_t;
76
77 /**
78 * @brief Device information exported to userspace.
79 * The strings are placed one after the other, separated by NUL characters.
80 * Fields should be added after the last one and order maintained for compatibility
81 */
82 #define BUS_USER_BUFFER (3*1024)
83 struct u_device {
84 uintptr_t dv_handle;
85 uintptr_t dv_parent;
86 uint32_t dv_devflags; /**< @brief API Flags for device */
87 uint16_t dv_flags; /**< @brief flags for dev state */
88 device_state_t dv_state; /**< @brief State of attachment */
89 char dv_fields[BUS_USER_BUFFER]; /**< @brief NUL terminated fields */
90 /* name (name of the device in tree) */
91 /* desc (driver description) */
92 /* drivername (Name of driver without unit number) */
93 /* pnpinfo (Plug and play information from bus) */
94 /* location (Location of device on parent */
95 /* NUL */
96 };
97
98 /* Flags exported via dv_flags. */
99 #define DF_ENABLED 0x01 /* device should be probed/attached */
100 #define DF_FIXEDCLASS 0x02 /* devclass specified at create time */
101 #define DF_WILDCARD 0x04 /* unit was originally wildcard */
102 #define DF_DESCMALLOCED 0x08 /* description was malloced */
103 #define DF_QUIET 0x10 /* don't print verbose attach message */
104 #define DF_DONENOMATCH 0x20 /* don't execute DEVICE_NOMATCH again */
105 #define DF_EXTERNALSOFTC 0x40 /* softc not allocated by us */
106 #define DF_SUSPENDED 0x100 /* Device is suspended. */
107 #define DF_QUIET_CHILDREN 0x200 /* Default to quiet for all my children */
108 #define DF_ATTACHED_ONCE 0x400 /* Has been attached at least once */
109 #define DF_NEEDNOMATCH 0x800 /* Has a pending NOMATCH event */
110
111 /**
112 * @brief Device request structure used for ioctl's.
113 *
114 * Used for ioctl's on /dev/devctl2. All device ioctl's
115 * must have parameter definitions which begin with dr_name.
116 */
117 struct devreq_buffer {
118 void *buffer;
119 size_t length;
120 };
121
122 struct devreq {
123 char dr_name[128];
124 int dr_flags; /* request-specific flags */
125 union {
126 struct devreq_buffer dru_buffer;
127 void *dru_data;
128 } dr_dru;
129 #define dr_buffer dr_dru.dru_buffer /* variable-sized buffer */
130 #define dr_data dr_dru.dru_data /* fixed-size buffer */
131 };
132
133 #define DEV_ATTACH _IOW('D', 1, struct devreq)
134 #define DEV_DETACH _IOW('D', 2, struct devreq)
135 #define DEV_ENABLE _IOW('D', 3, struct devreq)
136 #define DEV_DISABLE _IOW('D', 4, struct devreq)
137 #define DEV_SUSPEND _IOW('D', 5, struct devreq)
138 #define DEV_RESUME _IOW('D', 6, struct devreq)
139 #define DEV_SET_DRIVER _IOW('D', 7, struct devreq)
140 #define DEV_CLEAR_DRIVER _IOW('D', 8, struct devreq)
141 #define DEV_RESCAN _IOW('D', 9, struct devreq)
142 #define DEV_DELETE _IOW('D', 10, struct devreq)
143 #define DEV_FREEZE _IOW('D', 11, struct devreq)
144 #define DEV_THAW _IOW('D', 12, struct devreq)
145 #define DEV_RESET _IOW('D', 13, 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 (included mainly for compatibility with
180 * FreeBSD 4.x).
181 */
182 typedef struct kobj_class driver_t;
183
184 /**
185 * @brief A device class
186 *
187 * The devclass object has two main functions in the system. The first
188 * is to manage the allocation of unit numbers for device instances
189 * and the second is to hold the list of device drivers for a
190 * particular bus type. Each devclass has a name and there cannot be
191 * two devclasses with the same name. This ensures that unique unit
192 * numbers are allocated to device instances.
193 *
194 * Drivers that support several different bus attachments (e.g. isa,
195 * pci, pccard) should all use the same devclass to ensure that unit
196 * numbers do not conflict.
197 *
198 * Each devclass may also have a parent devclass. This is used when
199 * searching for device drivers to allow a form of inheritance. When
200 * matching drivers with devices, first the driver list of the parent
201 * device's devclass is searched. If no driver is found in that list,
202 * the search continues in the parent devclass (if any).
203 */
204 typedef struct devclass *devclass_t;
205
206 /**
207 * @brief A device method
208 */
209 #define device_method_t kobj_method_t
210
211 /**
212 * @brief Driver interrupt filter return values
213 *
214 * If a driver provides an interrupt filter routine it must return an
215 * integer consisting of oring together zero or more of the following
216 * flags:
217 *
218 * FILTER_STRAY - this device did not trigger the interrupt
219 * FILTER_HANDLED - the interrupt has been fully handled and can be EOId
220 * FILTER_SCHEDULE_THREAD - the threaded interrupt handler should be
221 * scheduled to execute
222 *
223 * If the driver does not provide a filter, then the interrupt code will
224 * act is if the filter had returned FILTER_SCHEDULE_THREAD. Note that it
225 * is illegal to specify any other flag with FILTER_STRAY and that it is
226 * illegal to not specify either of FILTER_HANDLED or FILTER_SCHEDULE_THREAD
227 * if FILTER_STRAY is not specified.
228 */
229 #define FILTER_STRAY 0x01
230 #define FILTER_HANDLED 0x02
231 #define FILTER_SCHEDULE_THREAD 0x04
232
233 /**
234 * @brief Driver interrupt service routines
235 *
236 * The filter routine is run in primary interrupt context and may not
237 * block or use regular mutexes. It may only use spin mutexes for
238 * synchronization. The filter may either completely handle the
239 * interrupt or it may perform some of the work and defer more
240 * expensive work to the regular interrupt handler. If a filter
241 * routine is not registered by the driver, then the regular interrupt
242 * handler is always used to handle interrupts from this device.
243 *
244 * The regular interrupt handler executes in its own thread context
245 * and may use regular mutexes. However, it is prohibited from
246 * sleeping on a sleep queue.
247 */
248 typedef int driver_filter_t(void*);
249 typedef void driver_intr_t(void*);
250
251 /**
252 * @brief Interrupt type bits.
253 *
254 * These flags may be passed by drivers to bus_setup_intr(9) when
255 * registering a new interrupt handler. The field is overloaded to
256 * specify both the interrupt's type and any special properties.
257 *
258 * The INTR_TYPE* bits will be passed to intr_priority(9) to determine the
259 * scheduling priority of the handler's ithread. For the specific priority
260 * values assigned to each type, see sys/priority.h.
261 *
262 * Buses may choose to modify or augment these flags as appropriate,
263 * e.g. nexus may apply INTR_EXCL.
264 */
265 enum intr_type {
266 INTR_TYPE_TTY = 1,
267 INTR_TYPE_BIO = 2,
268 INTR_TYPE_NET = 4,
269 INTR_TYPE_CAM = 8,
270 INTR_TYPE_MISC = 16,
271 INTR_TYPE_CLK = 32,
272 INTR_TYPE_AV = 64,
273 INTR_EXCL = 256, /* exclusive interrupt */
274 INTR_MPSAFE = 512, /* this interrupt is SMP safe */
275 INTR_ENTROPY = 1024, /* this interrupt provides entropy */
276 INTR_MD1 = 4096, /* flag reserved for MD use */
277 INTR_MD2 = 8192, /* flag reserved for MD use */
278 INTR_MD3 = 16384, /* flag reserved for MD use */
279 INTR_MD4 = 32768 /* flag reserved for MD use */
280 };
281
282 enum intr_trigger {
283 INTR_TRIGGER_INVALID = -1,
284 INTR_TRIGGER_CONFORM = 0,
285 INTR_TRIGGER_EDGE = 1,
286 INTR_TRIGGER_LEVEL = 2
287 };
288
289 enum intr_polarity {
290 INTR_POLARITY_CONFORM = 0,
291 INTR_POLARITY_HIGH = 1,
292 INTR_POLARITY_LOW = 2
293 };
294
295 /**
296 * CPU sets supported by bus_get_cpus(). Note that not all sets may be
297 * supported for a given device. If a request is not supported by a
298 * device (or its parents), then bus_get_cpus() will fail with EINVAL.
299 */
300 enum cpu_sets {
301 LOCAL_CPUS = 0,
302 INTR_CPUS
303 };
304
305 typedef int (*devop_t)(void);
306
307 /**
308 * @brief This structure is deprecated.
309 *
310 * Use the kobj(9) macro DEFINE_CLASS to
311 * declare classes which implement device drivers.
312 */
313 struct driver {
314 KOBJ_CLASS_FIELDS;
315 };
316
317 /**
318 * @brief A resource mapping.
319 */
320 struct resource_map {
321 bus_space_tag_t r_bustag;
322 bus_space_handle_t r_bushandle;
323 bus_size_t r_size;
324 void *r_vaddr;
325 };
326
327 /**
328 * @brief Optional properties of a resource mapping request.
329 */
330 struct resource_map_request {
331 size_t size;
332 rman_res_t offset;
333 rman_res_t length;
334 vm_memattr_t memattr;
335 };
336
337 void resource_init_map_request_impl(struct resource_map_request *_args,
338 size_t _sz);
339 #define resource_init_map_request(rmr) \
340 resource_init_map_request_impl((rmr), sizeof(*(rmr)))
341
342 /*
343 * Definitions for drivers which need to keep simple lists of resources
344 * for their child devices.
345 */
346 struct resource;
347
348 /**
349 * @brief An entry for a single resource in a resource list.
350 */
351 struct resource_list_entry {
352 STAILQ_ENTRY(resource_list_entry) link;
353 int type; /**< @brief type argument to alloc_resource */
354 int rid; /**< @brief resource identifier */
355 int flags; /**< @brief resource flags */
356 struct resource *res; /**< @brief the real resource when allocated */
357 rman_res_t start; /**< @brief start of resource range */
358 rman_res_t end; /**< @brief end of resource range */
359 rman_res_t count; /**< @brief count within range */
360 };
361 STAILQ_HEAD(resource_list, resource_list_entry);
362
363 #define RLE_RESERVED 0x0001 /* Reserved by the parent bus. */
364 #define RLE_ALLOCATED 0x0002 /* Reserved resource is allocated. */
365 #define RLE_PREFETCH 0x0004 /* Resource is a prefetch range. */
366
367 void resource_list_init(struct resource_list *rl);
368 void resource_list_free(struct resource_list *rl);
369 struct resource_list_entry *
370 resource_list_add(struct resource_list *rl,
371 int type, int rid,
372 rman_res_t start, rman_res_t end, rman_res_t count);
373 int resource_list_add_next(struct resource_list *rl,
374 int type,
375 rman_res_t start, rman_res_t end, rman_res_t count);
376 int resource_list_busy(struct resource_list *rl,
377 int type, int rid);
378 int resource_list_reserved(struct resource_list *rl, int type, int rid);
379 struct resource_list_entry*
380 resource_list_find(struct resource_list *rl,
381 int type, int rid);
382 void resource_list_delete(struct resource_list *rl,
383 int type, int rid);
384 struct resource *
385 resource_list_alloc(struct resource_list *rl,
386 device_t bus, device_t child,
387 int type, int *rid,
388 rman_res_t start, rman_res_t end,
389 rman_res_t count, u_int flags);
390 int resource_list_release(struct resource_list *rl,
391 device_t bus, device_t child,
392 int type, int rid, struct resource *res);
393 int resource_list_release_active(struct resource_list *rl,
394 device_t bus, device_t child,
395 int type);
396 struct resource *
397 resource_list_reserve(struct resource_list *rl,
398 device_t bus, device_t child,
399 int type, int *rid,
400 rman_res_t start, rman_res_t end,
401 rman_res_t count, u_int flags);
402 int resource_list_unreserve(struct resource_list *rl,
403 device_t bus, device_t child,
404 int type, int rid);
405 void resource_list_purge(struct resource_list *rl);
406 int resource_list_print_type(struct resource_list *rl,
407 const char *name, int type,
408 const char *format);
409
410 /*
411 * The root bus, to which all top-level buses are attached.
412 */
413 extern device_t root_bus;
414 extern devclass_t root_devclass;
415 void root_bus_configure(void);
416
417 /*
418 * Useful functions for implementing buses.
419 */
420
421 struct _cpuset;
422
423 int bus_generic_activate_resource(device_t dev, device_t child, int type,
424 int rid, struct resource *r);
425 device_t
426 bus_generic_add_child(device_t dev, u_int order, const char *name,
427 int unit);
428 int bus_generic_adjust_resource(device_t bus, device_t child, int type,
429 struct resource *r, rman_res_t start,
430 rman_res_t end);
431 struct resource *
432 bus_generic_alloc_resource(device_t bus, device_t child, int type,
433 int *rid, rman_res_t start, rman_res_t end,
434 rman_res_t count, u_int flags);
435 int bus_generic_translate_resource(device_t dev, int type, rman_res_t start,
436 rman_res_t *newstart);
437 int bus_generic_attach(device_t dev);
438 int bus_generic_bind_intr(device_t dev, device_t child,
439 struct resource *irq, int cpu);
440 int bus_generic_child_present(device_t dev, device_t child);
441 int bus_generic_config_intr(device_t, int, enum intr_trigger,
442 enum intr_polarity);
443 int bus_generic_describe_intr(device_t dev, device_t child,
444 struct resource *irq, void *cookie,
445 const char *descr);
446 int bus_generic_deactivate_resource(device_t dev, device_t child, int type,
447 int rid, struct resource *r);
448 int bus_generic_detach(device_t dev);
449 void bus_generic_driver_added(device_t dev, driver_t *driver);
450 int bus_generic_get_cpus(device_t dev, device_t child, enum cpu_sets op,
451 size_t setsize, struct _cpuset *cpuset);
452 bus_dma_tag_t
453 bus_generic_get_dma_tag(device_t dev, device_t child);
454 bus_space_tag_t
455 bus_generic_get_bus_tag(device_t dev, device_t child);
456 int bus_generic_get_domain(device_t dev, device_t child, int *domain);
457 ssize_t bus_generic_get_property(device_t dev, device_t child,
458 const char *propname, void *propvalue,
459 size_t size, device_property_type_t type);
460 struct resource_list *
461 bus_generic_get_resource_list (device_t, device_t);
462 int bus_generic_map_resource(device_t dev, device_t child, int type,
463 struct resource *r,
464 struct resource_map_request *args,
465 struct resource_map *map);
466 void bus_generic_new_pass(device_t dev);
467 int bus_print_child_header(device_t dev, device_t child);
468 int bus_print_child_domain(device_t dev, device_t child);
469 int bus_print_child_footer(device_t dev, device_t child);
470 int bus_generic_print_child(device_t dev, device_t child);
471 int bus_generic_probe(device_t dev);
472 int bus_generic_read_ivar(device_t dev, device_t child, int which,
473 uintptr_t *result);
474 int bus_generic_release_resource(device_t bus, device_t child,
475 int type, int rid, struct resource *r);
476 int bus_generic_resume(device_t dev);
477 int bus_generic_resume_child(device_t dev, device_t child);
478 int bus_generic_setup_intr(device_t dev, device_t child,
479 struct resource *irq, int flags,
480 driver_filter_t *filter, driver_intr_t *intr,
481 void *arg, void **cookiep);
482
483 struct resource *
484 bus_generic_rl_alloc_resource (device_t, device_t, int, int *,
485 rman_res_t, rman_res_t, rman_res_t, u_int);
486 void bus_generic_rl_delete_resource (device_t, device_t, int, int);
487 int bus_generic_rl_get_resource (device_t, device_t, int, int, rman_res_t *,
488 rman_res_t *);
489 int bus_generic_rl_set_resource (device_t, device_t, int, int, rman_res_t,
490 rman_res_t);
491 int bus_generic_rl_release_resource (device_t, device_t, int, int,
492 struct resource *);
493
494 int bus_generic_shutdown(device_t dev);
495 int bus_generic_suspend(device_t dev);
496 int bus_generic_suspend_child(device_t dev, device_t child);
497 int bus_generic_teardown_intr(device_t dev, device_t child,
498 struct resource *irq, void *cookie);
499 int bus_generic_suspend_intr(device_t dev, device_t child,
500 struct resource *irq);
501 int bus_generic_resume_intr(device_t dev, device_t child,
502 struct resource *irq);
503 int bus_generic_unmap_resource(device_t dev, device_t child, int type,
504 struct resource *r,
505 struct resource_map *map);
506 int bus_generic_write_ivar(device_t dev, device_t child, int which,
507 uintptr_t value);
508 int bus_helper_reset_post(device_t dev, int flags);
509 int bus_helper_reset_prepare(device_t dev, int flags);
510 int bus_null_rescan(device_t dev);
511
512 /*
513 * Wrapper functions for the BUS_*_RESOURCE methods to make client code
514 * a little simpler.
515 */
516
517 struct resource_spec {
518 int type;
519 int rid;
520 int flags;
521 };
522 #define RESOURCE_SPEC_END {-1, 0, 0}
523
524 int bus_alloc_resources(device_t dev, struct resource_spec *rs,
525 struct resource **res);
526 void bus_release_resources(device_t dev, const struct resource_spec *rs,
527 struct resource **res);
528
529 int bus_adjust_resource(device_t child, int type, struct resource *r,
530 rman_res_t start, rman_res_t end);
531 struct resource *bus_alloc_resource(device_t dev, int type, int *rid,
532 rman_res_t start, rman_res_t end,
533 rman_res_t count, u_int flags);
534 int bus_activate_resource(device_t dev, int type, int rid,
535 struct resource *r);
536 int bus_deactivate_resource(device_t dev, int type, int rid,
537 struct resource *r);
538 int bus_map_resource(device_t dev, int type, struct resource *r,
539 struct resource_map_request *args,
540 struct resource_map *map);
541 int bus_unmap_resource(device_t dev, int type, struct resource *r,
542 struct resource_map *map);
543 int bus_get_cpus(device_t dev, enum cpu_sets op, size_t setsize,
544 struct _cpuset *cpuset);
545 bus_dma_tag_t bus_get_dma_tag(device_t dev);
546 bus_space_tag_t bus_get_bus_tag(device_t dev);
547 int bus_get_domain(device_t dev, int *domain);
548 int bus_release_resource(device_t dev, int type, int rid,
549 struct resource *r);
550 int bus_free_resource(device_t dev, int type, struct resource *r);
551 int bus_setup_intr(device_t dev, struct resource *r, int flags,
552 driver_filter_t filter, driver_intr_t handler,
553 void *arg, void **cookiep);
554 int bus_teardown_intr(device_t dev, struct resource *r, void *cookie);
555 int bus_suspend_intr(device_t dev, struct resource *r);
556 int bus_resume_intr(device_t dev, struct resource *r);
557 int bus_bind_intr(device_t dev, struct resource *r, int cpu);
558 int bus_describe_intr(device_t dev, struct resource *irq, void *cookie,
559 const char *fmt, ...) __printflike(4, 5);
560 int bus_set_resource(device_t dev, int type, int rid,
561 rman_res_t start, rman_res_t count);
562 int bus_get_resource(device_t dev, int type, int rid,
563 rman_res_t *startp, rman_res_t *countp);
564 rman_res_t bus_get_resource_start(device_t dev, int type, int rid);
565 rman_res_t bus_get_resource_count(device_t dev, int type, int rid);
566 void bus_delete_resource(device_t dev, int type, int rid);
567 int bus_child_present(device_t child);
568 int bus_child_pnpinfo_str(device_t child, char *buf, size_t buflen);
569 int bus_child_location_str(device_t child, char *buf, size_t buflen);
570 void bus_enumerate_hinted_children(device_t bus);
571 int bus_delayed_attach_children(device_t bus);
572
573 static __inline struct resource *
bus_alloc_resource_any(device_t dev,int type,int * rid,u_int flags)574 bus_alloc_resource_any(device_t dev, int type, int *rid, u_int flags)
575 {
576 return (bus_alloc_resource(dev, type, rid, 0, ~0, 1, flags));
577 }
578
579 static __inline struct resource *
bus_alloc_resource_anywhere(device_t dev,int type,int * rid,rman_res_t count,u_int flags)580 bus_alloc_resource_anywhere(device_t dev, int type, int *rid,
581 rman_res_t count, u_int flags)
582 {
583 return (bus_alloc_resource(dev, type, rid, 0, ~0, count, flags));
584 }
585
586 /*
587 * Access functions for device.
588 */
589 device_t device_add_child(device_t dev, const char *name, int unit);
590 device_t device_add_child_ordered(device_t dev, u_int order,
591 const char *name, int unit);
592 void device_busy(device_t dev);
593 int device_delete_child(device_t dev, device_t child);
594 int device_delete_children(device_t dev);
595 int device_attach(device_t dev);
596 int device_detach(device_t dev);
597 void device_disable(device_t dev);
598 void device_enable(device_t dev);
599 device_t device_find_child(device_t dev, const char *classname,
600 int unit);
601 const char *device_get_desc(device_t dev);
602 devclass_t device_get_devclass(device_t dev);
603 driver_t *device_get_driver(device_t dev);
604 u_int32_t device_get_flags(device_t dev);
605 device_t device_get_parent(device_t dev);
606 int device_get_children(device_t dev, device_t **listp, int *countp);
607 void *device_get_ivars(device_t dev);
608 void device_set_ivars(device_t dev, void *ivars);
609 const char *device_get_name(device_t dev);
610 const char *device_get_nameunit(device_t dev);
611 void *device_get_softc(device_t dev);
612 device_state_t device_get_state(device_t dev);
613 int device_get_unit(device_t dev);
614 struct sysctl_ctx_list *device_get_sysctl_ctx(device_t dev);
615 struct sysctl_oid *device_get_sysctl_tree(device_t dev);
616 int device_has_quiet_children(device_t dev);
617 int device_is_alive(device_t dev); /* did probe succeed? */
618 int device_is_attached(device_t dev); /* did attach succeed? */
619 int device_is_enabled(device_t dev);
620 int device_is_suspended(device_t dev);
621 int device_is_quiet(device_t dev);
622 device_t device_lookup_by_name(const char *name);
623 int device_print_prettyname(device_t dev);
624 int device_printf(device_t dev, const char *, ...) __printflike(2, 3);
625 int device_log(device_t dev, int pri, const char *, ...) __printflike(3, 4);
626 int device_probe(device_t dev);
627 int device_probe_and_attach(device_t dev);
628 int device_probe_child(device_t bus, device_t dev);
629 int device_quiesce(device_t dev);
630 void device_quiet(device_t dev);
631 void device_quiet_children(device_t dev);
632 void device_set_desc(device_t dev, const char* desc);
633 void device_set_desc_copy(device_t dev, const char* desc);
634 int device_set_devclass(device_t dev, const char *classname);
635 int device_set_devclass_fixed(device_t dev, const char *classname);
636 bool device_is_devclass_fixed(device_t dev);
637 int device_set_driver(device_t dev, driver_t *driver);
638 void device_set_flags(device_t dev, u_int32_t flags);
639 void device_set_softc(device_t dev, void *softc);
640 void device_free_softc(void *softc);
641 void device_claim_softc(device_t dev);
642 int device_set_unit(device_t dev, int unit); /* XXX DONT USE XXX */
643 int device_shutdown(device_t dev);
644 void device_unbusy(device_t dev);
645 void device_verbose(device_t dev);
646 ssize_t device_get_property(device_t dev, const char *prop, void *val,
647 size_t sz, device_property_type_t type);
648 bool device_has_property(device_t dev, const char *prop);
649
650 /*
651 * Access functions for devclass.
652 */
653 int devclass_add_driver(devclass_t dc, driver_t *driver,
654 int pass, devclass_t *dcp);
655 devclass_t devclass_create(const char *classname);
656 int devclass_delete_driver(devclass_t busclass, driver_t *driver);
657 devclass_t devclass_find(const char *classname);
658 const char *devclass_get_name(devclass_t dc);
659 device_t devclass_get_device(devclass_t dc, int unit);
660 void *devclass_get_softc(devclass_t dc, int unit);
661 int devclass_get_devices(devclass_t dc, device_t **listp, int *countp);
662 int devclass_get_drivers(devclass_t dc, driver_t ***listp, int *countp);
663 int devclass_get_count(devclass_t dc);
664 int devclass_get_maxunit(devclass_t dc);
665 int devclass_find_free_unit(devclass_t dc, int unit);
666 void devclass_set_parent(devclass_t dc, devclass_t pdc);
667 devclass_t devclass_get_parent(devclass_t dc);
668 struct sysctl_ctx_list *devclass_get_sysctl_ctx(devclass_t dc);
669 struct sysctl_oid *devclass_get_sysctl_tree(devclass_t dc);
670
671 /*
672 * Access functions for device resources.
673 */
674 int resource_int_value(const char *name, int unit, const char *resname,
675 int *result);
676 int resource_long_value(const char *name, int unit, const char *resname,
677 long *result);
678 int resource_string_value(const char *name, int unit, const char *resname,
679 const char **result);
680 int resource_disabled(const char *name, int unit);
681 int resource_find_match(int *anchor, const char **name, int *unit,
682 const char *resname, const char *value);
683 int resource_find_dev(int *anchor, const char *name, int *unit,
684 const char *resname, const char *value);
685 int resource_unset_value(const char *name, int unit, const char *resname);
686
687 /*
688 * Functions for maintaining and checking consistency of
689 * bus information exported to userspace.
690 */
691 int bus_data_generation_check(int generation);
692 void bus_data_generation_update(void);
693
694 /**
695 * Some convenience defines for probe routines to return. These are just
696 * suggested values, and there's nothing magical about them.
697 * BUS_PROBE_SPECIFIC is for devices that cannot be reprobed, and that no
698 * possible other driver may exist (typically legacy drivers who don't follow
699 * all the rules, or special needs drivers). BUS_PROBE_VENDOR is the
700 * suggested value that vendor supplied drivers use. This is for source or
701 * binary drivers that are not yet integrated into the FreeBSD tree. Its use
702 * in the base OS is prohibited. BUS_PROBE_DEFAULT is the normal return value
703 * for drivers to use. It is intended that nearly all of the drivers in the
704 * tree should return this value. BUS_PROBE_LOW_PRIORITY are for drivers that
705 * have special requirements like when there are two drivers that support
706 * overlapping series of hardware devices. In this case the one that supports
707 * the older part of the line would return this value, while the one that
708 * supports the newer ones would return BUS_PROBE_DEFAULT. BUS_PROBE_GENERIC
709 * is for drivers that wish to have a generic form and a specialized form,
710 * like is done with the pci bus and the acpi pci bus. BUS_PROBE_HOOVER is
711 * for those buses that implement a generic device placeholder for devices on
712 * the bus that have no more specific driver for them (aka ugen).
713 * BUS_PROBE_NOWILDCARD or lower means that the device isn't really bidding
714 * for a device node, but accepts only devices that its parent has told it
715 * use this driver.
716 */
717 #define BUS_PROBE_SPECIFIC 0 /* Only I can use this device */
718 #define BUS_PROBE_VENDOR (-10) /* Vendor supplied driver */
719 #define BUS_PROBE_DEFAULT (-20) /* Base OS default driver */
720 #define BUS_PROBE_LOW_PRIORITY (-40) /* Older, less desirable drivers */
721 #define BUS_PROBE_GENERIC (-100) /* generic driver for dev */
722 #define BUS_PROBE_HOOVER (-1000000) /* Driver for any dev on bus */
723 #define BUS_PROBE_NOWILDCARD (-2000000000) /* No wildcard device matches */
724
725 /**
726 * During boot, the device tree is scanned multiple times. Each scan,
727 * or pass, drivers may be attached to devices. Each driver
728 * attachment is assigned a pass number. Drivers may only probe and
729 * attach to devices if their pass number is less than or equal to the
730 * current system-wide pass number. The default pass is the last pass
731 * and is used by most drivers. Drivers needed by the scheduler are
732 * probed in earlier passes.
733 */
734 #define BUS_PASS_ROOT 0 /* Used to attach root0. */
735 #define BUS_PASS_BUS 10 /* Buses and bridges. */
736 #define BUS_PASS_CPU 20 /* CPU devices. */
737 #define BUS_PASS_RESOURCE 30 /* Resource discovery. */
738 #define BUS_PASS_INTERRUPT 40 /* Interrupt controllers. */
739 #define BUS_PASS_TIMER 50 /* Timers and clocks. */
740 #define BUS_PASS_SCHEDULER 60 /* Start scheduler. */
741 #define BUS_PASS_SUPPORTDEV 100000 /* Drivers which support DEFAULT drivers. */
742 #define BUS_PASS_DEFAULT __INT_MAX /* Everything else. */
743
744 #define BUS_PASS_ORDER_FIRST 0
745 #define BUS_PASS_ORDER_EARLY 2
746 #define BUS_PASS_ORDER_MIDDLE 5
747 #define BUS_PASS_ORDER_LATE 7
748 #define BUS_PASS_ORDER_LAST 9
749
750 extern int bus_current_pass;
751
752 void bus_set_pass(int pass);
753
754 /**
755 * Routines to lock / unlock the newbus lock.
756 * Must be taken out to interact with newbus.
757 */
758 void bus_topo_lock(void);
759 void bus_topo_unlock(void);
760 struct mtx * bus_topo_mtx(void);
761
762 /**
763 * Shorthands for constructing method tables.
764 */
765 #define DEVMETHOD KOBJMETHOD
766 #define DEVMETHOD_END KOBJMETHOD_END
767
768 /*
769 * Some common device interfaces.
770 */
771 #include "device_if.h"
772 #include "bus_if.h"
773
774 struct module;
775
776 int driver_module_handler(struct module *, int, void *);
777
778 /**
779 * Module support for automatically adding drivers to buses.
780 */
781 struct driver_module_data {
782 int (*dmd_chainevh)(struct module *, int, void *);
783 void *dmd_chainarg;
784 const char *dmd_busname;
785 kobj_class_t dmd_driver;
786 devclass_t *dmd_devclass;
787 int dmd_pass;
788 };
789
790 #define _DRIVER_MODULE_MACRO(_1, _2, _3, _4, _5, _6, _7, _8, NAME, ...) \
791 NAME
792
793 #define _EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, devclass, \
794 evh, arg, order, pass) \
795 \
796 static struct driver_module_data name##_##busname##_driver_mod = { \
797 evh, arg, \
798 #busname, \
799 (kobj_class_t) &driver, \
800 devclass, \
801 pass \
802 }; \
803 \
804 static moduledata_t name##_##busname##_mod = { \
805 #busname "/" #name, \
806 driver_module_handler, \
807 &name##_##busname##_driver_mod \
808 }; \
809 DECLARE_MODULE(name##_##busname, name##_##busname##_mod, \
810 SI_SUB_DRIVERS, order)
811
812 #define EARLY_DRIVER_MODULE_ORDERED7(name, busname, driver, evh, arg, \
813 order, pass) \
814 _EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, NULL, evh, \
815 arg, order, pass)
816
817 #define EARLY_DRIVER_MODULE_ORDERED8(name, busname, driver, devclass, \
818 evh, arg, order, pass) \
819 _EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, &devclass, \
820 evh, arg, order, pass)
821
822 #define EARLY_DRIVER_MODULE_ORDERED(...) \
823 _DRIVER_MODULE_MACRO(__VA_ARGS__, EARLY_DRIVER_MODULE_ORDERED8, \
824 EARLY_DRIVER_MODULE_ORDERED7)(__VA_ARGS__)
825
826 #define EARLY_DRIVER_MODULE7(name, busname, driver, devclass, evh, arg, pass) \
827 EARLY_DRIVER_MODULE_ORDERED8(name, busname, driver, devclass, \
828 evh, arg, SI_ORDER_MIDDLE, pass)
829
830 #define EARLY_DRIVER_MODULE6(name, busname, driver, evh, arg, pass) \
831 EARLY_DRIVER_MODULE_ORDERED7(name, busname, driver, evh, arg, \
832 SI_ORDER_MIDDLE, pass)
833
834 #define EARLY_DRIVER_MODULE(...) \
835 _DRIVER_MODULE_MACRO(__VA_ARGS__, INVALID, \
836 EARLY_DRIVER_MODULE7, EARLY_DRIVER_MODULE6)(__VA_ARGS__)
837
838 #define DRIVER_MODULE_ORDERED7(name, busname, driver, devclass, evh, arg,\
839 order) \
840 EARLY_DRIVER_MODULE_ORDERED8(name, busname, driver, devclass, \
841 evh, arg, order, BUS_PASS_DEFAULT)
842
843 #define DRIVER_MODULE_ORDERED6(name, busname, driver, evh, arg, order) \
844 EARLY_DRIVER_MODULE_ORDERED7(name, busname, driver, evh, arg, \
845 order, BUS_PASS_DEFAULT)
846
847 #define DRIVER_MODULE_ORDERED(...) \
848 _DRIVER_MODULE_MACRO(__VA_ARGS__, INVALID, \
849 DRIVER_MODULE_ORDERED7, DRIVER_MODULE_ORDERED6)(__VA_ARGS__)
850
851 #define DRIVER_MODULE6(name, busname, driver, devclass, evh, arg) \
852 EARLY_DRIVER_MODULE7(name, busname, driver, devclass, evh, arg, \
853 BUS_PASS_DEFAULT)
854
855 #define DRIVER_MODULE5(name, busname, driver, evh, arg) \
856 EARLY_DRIVER_MODULE6(name, busname, driver, evh, arg, \
857 BUS_PASS_DEFAULT)
858
859 #define DRIVER_MODULE(...) \
860 _DRIVER_MODULE_MACRO(__VA_ARGS__, INVALID, INVALID, \
861 DRIVER_MODULE6, DRIVER_MODULE5)(__VA_ARGS__)
862
863 /**
864 * Generic ivar accessor generation macros for bus drivers
865 */
866 #define __BUS_ACCESSOR(varp, var, ivarp, ivar, type) \
867 \
868 static __inline type varp ## _get_ ## var(device_t dev) \
869 { \
870 uintptr_t v; \
871 int e __diagused; \
872 e = BUS_READ_IVAR(device_get_parent(dev), dev, \
873 ivarp ## _IVAR_ ## ivar, &v); \
874 KASSERT(e == 0, ("%s failed for %s on bus %s, error = %d", \
875 __func__, device_get_nameunit(dev), \
876 device_get_nameunit(device_get_parent(dev)), e)); \
877 return ((type) v); \
878 } \
879 \
880 static __inline void varp ## _set_ ## var(device_t dev, type t) \
881 { \
882 uintptr_t v = (uintptr_t) t; \
883 int e __diagused; \
884 e = BUS_WRITE_IVAR(device_get_parent(dev), dev, \
885 ivarp ## _IVAR_ ## ivar, v); \
886 KASSERT(e == 0, ("%s failed for %s on bus %s, error = %d", \
887 __func__, device_get_nameunit(dev), \
888 device_get_nameunit(device_get_parent(dev)), e)); \
889 }
890
891 /**
892 * Shorthand macros, taking resource argument
893 * Generated with sys/tools/bus_macro.sh
894 */
895
896 #define bus_barrier(r, o, l, f) \
897 bus_space_barrier((r)->r_bustag, (r)->r_bushandle, (o), (l), (f))
898 #define bus_poke_1(r, o, v) \
899 bus_space_poke_1((r)->r_bustag, (r)->r_bushandle, (o), (v))
900 #define bus_peek_1(r, o, vp) \
901 bus_space_peek_1((r)->r_bustag, (r)->r_bushandle, (o), (vp))
902 #define bus_read_1(r, o) \
903 bus_space_read_1((r)->r_bustag, (r)->r_bushandle, (o))
904 #define bus_read_multi_1(r, o, d, c) \
905 bus_space_read_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
906 #define bus_read_region_1(r, o, d, c) \
907 bus_space_read_region_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
908 #define bus_set_multi_1(r, o, v, c) \
909 bus_space_set_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
910 #define bus_set_region_1(r, o, v, c) \
911 bus_space_set_region_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
912 #define bus_write_1(r, o, v) \
913 bus_space_write_1((r)->r_bustag, (r)->r_bushandle, (o), (v))
914 #define bus_write_multi_1(r, o, d, c) \
915 bus_space_write_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
916 #define bus_write_region_1(r, o, d, c) \
917 bus_space_write_region_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
918 #define bus_read_stream_1(r, o) \
919 bus_space_read_stream_1((r)->r_bustag, (r)->r_bushandle, (o))
920 #define bus_read_multi_stream_1(r, o, d, c) \
921 bus_space_read_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
922 #define bus_read_region_stream_1(r, o, d, c) \
923 bus_space_read_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
924 #define bus_set_multi_stream_1(r, o, v, c) \
925 bus_space_set_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
926 #define bus_set_region_stream_1(r, o, v, c) \
927 bus_space_set_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
928 #define bus_write_stream_1(r, o, v) \
929 bus_space_write_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v))
930 #define bus_write_multi_stream_1(r, o, d, c) \
931 bus_space_write_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
932 #define bus_write_region_stream_1(r, o, d, c) \
933 bus_space_write_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
934 #define bus_poke_2(r, o, v) \
935 bus_space_poke_2((r)->r_bustag, (r)->r_bushandle, (o), (v))
936 #define bus_peek_2(r, o, vp) \
937 bus_space_peek_2((r)->r_bustag, (r)->r_bushandle, (o), (vp))
938 #define bus_read_2(r, o) \
939 bus_space_read_2((r)->r_bustag, (r)->r_bushandle, (o))
940 #define bus_read_multi_2(r, o, d, c) \
941 bus_space_read_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
942 #define bus_read_region_2(r, o, d, c) \
943 bus_space_read_region_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
944 #define bus_set_multi_2(r, o, v, c) \
945 bus_space_set_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
946 #define bus_set_region_2(r, o, v, c) \
947 bus_space_set_region_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
948 #define bus_write_2(r, o, v) \
949 bus_space_write_2((r)->r_bustag, (r)->r_bushandle, (o), (v))
950 #define bus_write_multi_2(r, o, d, c) \
951 bus_space_write_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
952 #define bus_write_region_2(r, o, d, c) \
953 bus_space_write_region_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
954 #define bus_read_stream_2(r, o) \
955 bus_space_read_stream_2((r)->r_bustag, (r)->r_bushandle, (o))
956 #define bus_read_multi_stream_2(r, o, d, c) \
957 bus_space_read_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
958 #define bus_read_region_stream_2(r, o, d, c) \
959 bus_space_read_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
960 #define bus_set_multi_stream_2(r, o, v, c) \
961 bus_space_set_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
962 #define bus_set_region_stream_2(r, o, v, c) \
963 bus_space_set_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
964 #define bus_write_stream_2(r, o, v) \
965 bus_space_write_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v))
966 #define bus_write_multi_stream_2(r, o, d, c) \
967 bus_space_write_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
968 #define bus_write_region_stream_2(r, o, d, c) \
969 bus_space_write_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
970 #define bus_poke_4(r, o, v) \
971 bus_space_poke_4((r)->r_bustag, (r)->r_bushandle, (o), (v))
972 #define bus_peek_4(r, o, vp) \
973 bus_space_peek_4((r)->r_bustag, (r)->r_bushandle, (o), (vp))
974 #define bus_read_4(r, o) \
975 bus_space_read_4((r)->r_bustag, (r)->r_bushandle, (o))
976 #define bus_read_multi_4(r, o, d, c) \
977 bus_space_read_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
978 #define bus_read_region_4(r, o, d, c) \
979 bus_space_read_region_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
980 #define bus_set_multi_4(r, o, v, c) \
981 bus_space_set_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
982 #define bus_set_region_4(r, o, v, c) \
983 bus_space_set_region_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
984 #define bus_write_4(r, o, v) \
985 bus_space_write_4((r)->r_bustag, (r)->r_bushandle, (o), (v))
986 #define bus_write_multi_4(r, o, d, c) \
987 bus_space_write_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
988 #define bus_write_region_4(r, o, d, c) \
989 bus_space_write_region_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
990 #define bus_read_stream_4(r, o) \
991 bus_space_read_stream_4((r)->r_bustag, (r)->r_bushandle, (o))
992 #define bus_read_multi_stream_4(r, o, d, c) \
993 bus_space_read_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
994 #define bus_read_region_stream_4(r, o, d, c) \
995 bus_space_read_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
996 #define bus_set_multi_stream_4(r, o, v, c) \
997 bus_space_set_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
998 #define bus_set_region_stream_4(r, o, v, c) \
999 bus_space_set_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1000 #define bus_write_stream_4(r, o, v) \
1001 bus_space_write_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v))
1002 #define bus_write_multi_stream_4(r, o, d, c) \
1003 bus_space_write_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1004 #define bus_write_region_stream_4(r, o, d, c) \
1005 bus_space_write_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1006 #define bus_poke_8(r, o, v) \
1007 bus_space_poke_8((r)->r_bustag, (r)->r_bushandle, (o), (v))
1008 #define bus_peek_8(r, o, vp) \
1009 bus_space_peek_8((r)->r_bustag, (r)->r_bushandle, (o), (vp))
1010 #define bus_read_8(r, o) \
1011 bus_space_read_8((r)->r_bustag, (r)->r_bushandle, (o))
1012 #define bus_read_multi_8(r, o, d, c) \
1013 bus_space_read_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1014 #define bus_read_region_8(r, o, d, c) \
1015 bus_space_read_region_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1016 #define bus_set_multi_8(r, o, v, c) \
1017 bus_space_set_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1018 #define bus_set_region_8(r, o, v, c) \
1019 bus_space_set_region_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1020 #define bus_write_8(r, o, v) \
1021 bus_space_write_8((r)->r_bustag, (r)->r_bushandle, (o), (v))
1022 #define bus_write_multi_8(r, o, d, c) \
1023 bus_space_write_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1024 #define bus_write_region_8(r, o, d, c) \
1025 bus_space_write_region_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1026 #define bus_read_stream_8(r, o) \
1027 bus_space_read_stream_8((r)->r_bustag, (r)->r_bushandle, (o))
1028 #define bus_read_multi_stream_8(r, o, d, c) \
1029 bus_space_read_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1030 #define bus_read_region_stream_8(r, o, d, c) \
1031 bus_space_read_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1032 #define bus_set_multi_stream_8(r, o, v, c) \
1033 bus_space_set_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1034 #define bus_set_region_stream_8(r, o, v, c) \
1035 bus_space_set_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
1036 #define bus_write_stream_8(r, o, v) \
1037 bus_space_write_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v))
1038 #define bus_write_multi_stream_8(r, o, d, c) \
1039 bus_space_write_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1040 #define bus_write_region_stream_8(r, o, d, c) \
1041 bus_space_write_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
1042 #endif /* _KERNEL */
1043
1044 #endif /* !_SYS_BUS_H_ */
1045