Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/sys/bus.h
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 1997,1998,2003 Doug Rabson 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #ifndef _SYS_BUS_H_ 32 #define _SYS_BUS_H_ 33 34 #include <machine/_limits.h> 35 #include <machine/_bus.h> 36 #include <sys/_bus_dma.h> 37 #include <sys/ioccom.h> 38 39 /** 40 * @defgroup NEWBUS newbus - a generic framework for managing devices 41 * @{ 42 */ 43 44 /** 45 * @brief Interface information structure. 46 */ 47 struct u_businfo { 48 int ub_version; /**< @brief interface version */ 49 #define BUS_USER_VERSION 2 50 int ub_generation; /**< @brief generation count */ 51 }; 52 53 /** 54 * @brief State of the device. 55 */ 56 typedef enum device_state { 57 DS_NOTPRESENT = 10, /**< @brief not probed or probe failed */ 58 DS_ALIVE = 20, /**< @brief probe succeeded */ 59 DS_ATTACHING = 25, /**< @brief currently attaching */ 60 DS_ATTACHED = 30, /**< @brief attach method called */ 61 } device_state_t; 62 63 /** 64 * @brief Device proprty types. 65 * 66 * Those are used by bus logic to encode requested properties, 67 * e.g. in DT all properties are stored as BE and need to be converted 68 * to host endianness. 69 */ 70 typedef enum device_property_type { 71 DEVICE_PROP_ANY = 0, 72 DEVICE_PROP_BUFFER = 1, 73 DEVICE_PROP_UINT32 = 2, 74 DEVICE_PROP_UINT64 = 3, 75 DEVICE_PROP_HANDLE = 4, 76 } device_property_type_t; 77 78 /** 79 * @brief Device information exported to userspace. 80 * The strings are placed one after the other, separated by NUL characters. 81 * Fields should be added after the last one and order maintained for compatibility 82 */ 83 #define BUS_USER_BUFFER (3*1024) 84 struct u_device { 85 uintptr_t dv_handle; 86 uintptr_t dv_parent; 87 uint32_t dv_devflags; /**< @brief API Flags for device */ 88 uint16_t dv_flags; /**< @brief flags for dev state */ 89 device_state_t dv_state; /**< @brief State of attachment */ 90 char dv_fields[BUS_USER_BUFFER]; /**< @brief NUL terminated fields */ 91 /* name (name of the device in tree) */ 92 /* desc (driver description) */ 93 /* drivername (Name of driver without unit number) */ 94 /* pnpinfo (Plug and play information from bus) */ 95 /* location (Location of device on parent */ 96 /* NUL */ 97 }; 98 99 /* Flags exported via dv_flags. */ 100 #define DF_ENABLED 0x01 /* device should be probed/attached */ 101 #define DF_FIXEDCLASS 0x02 /* devclass specified at create time */ 102 #define DF_WILDCARD 0x04 /* unit was originally wildcard */ 103 #define DF_DESCMALLOCED 0x08 /* description was malloced */ 104 #define DF_QUIET 0x10 /* don't print verbose attach message */ 105 #define DF_DONENOMATCH 0x20 /* don't execute DEVICE_NOMATCH again */ 106 #define DF_EXTERNALSOFTC 0x40 /* softc not allocated by us */ 107 #define DF_SUSPENDED 0x100 /* Device is suspended. */ 108 #define DF_QUIET_CHILDREN 0x200 /* Default to quiet for all my children */ 109 #define DF_ATTACHED_ONCE 0x400 /* Has been attached at least once */ 110 #define DF_NEEDNOMATCH 0x800 /* Has a pending NOMATCH event */ 111 112 /** 113 * @brief Device request structure used for ioctl's. 114 * 115 * Used for ioctl's on /dev/devctl2. All device ioctl's 116 * must have parameter definitions which begin with dr_name. 117 */ 118 struct devreq_buffer { 119 void *buffer; 120 size_t length; 121 }; 122 123 struct devreq { 124 char dr_name[128]; 125 int dr_flags; /* request-specific flags */ 126 union { 127 struct devreq_buffer dru_buffer; 128 void *dru_data; 129 } dr_dru; 130 #define dr_buffer dr_dru.dru_buffer /* variable-sized buffer */ 131 #define dr_data dr_dru.dru_data /* fixed-size buffer */ 132 }; 133 134 #define DEV_ATTACH _IOW('D', 1, struct devreq) 135 #define DEV_DETACH _IOW('D', 2, struct devreq) 136 #define DEV_ENABLE _IOW('D', 3, struct devreq) 137 #define DEV_DISABLE _IOW('D', 4, struct devreq) 138 #define DEV_SUSPEND _IOW('D', 5, struct devreq) 139 #define DEV_RESUME _IOW('D', 6, struct devreq) 140 #define DEV_SET_DRIVER _IOW('D', 7, struct devreq) 141 #define DEV_CLEAR_DRIVER _IOW('D', 8, struct devreq) 142 #define DEV_RESCAN _IOW('D', 9, struct devreq) 143 #define DEV_DELETE _IOW('D', 10, struct devreq) 144 #define DEV_FREEZE _IOW('D', 11, struct devreq) 145 #define DEV_THAW _IOW('D', 12, struct devreq) 146 #define DEV_RESET _IOW('D', 13, struct devreq) 147 #define DEV_GET_PATH _IOWR('D', 14, struct devreq) 148 149 /* Flags for DEV_DETACH and DEV_DISABLE. */ 150 #define DEVF_FORCE_DETACH 0x0000001 151 152 /* Flags for DEV_SET_DRIVER. */ 153 #define DEVF_SET_DRIVER_DETACH 0x0000001 /* Detach existing driver. */ 154 155 /* Flags for DEV_CLEAR_DRIVER. */ 156 #define DEVF_CLEAR_DRIVER_DETACH 0x0000001 /* Detach existing driver. */ 157 158 /* Flags for DEV_DELETE. */ 159 #define DEVF_FORCE_DELETE 0x0000001 160 161 /* Flags for DEV_RESET */ 162 #define DEVF_RESET_DETACH 0x0000001 /* Detach drivers vs suspend 163 device */ 164 165 #ifdef _KERNEL 166 167 #include <sys/_eventhandler.h> 168 #include <sys/kobj.h> 169 #include <sys/systm.h> 170 #include <sys/devctl.h> 171 172 /** 173 * Device name parsers. Hook to allow device enumerators to map 174 * scheme-specific names to a device. 175 */ 176 typedef void (*dev_lookup_fn)(void *arg, const char *name, 177 device_t *result); 178 EVENTHANDLER_DECLARE(dev_lookup, dev_lookup_fn); 179 180 /** 181 * @brief A device driver. 182 * 183 * Provides an abstraction layer for driver dispatch. 184 */ 185 typedef struct kobj_class driver_t; 186 187 /** 188 * @brief A device class 189 * 190 * The devclass object has two main functions in the system. The first 191 * is to manage the allocation of unit numbers for device instances 192 * and the second is to hold the list of device drivers for a 193 * particular bus type. Each devclass has a name and there cannot be 194 * two devclasses with the same name. This ensures that unique unit 195 * numbers are allocated to device instances. 196 * 197 * Drivers that support several different bus attachments (e.g. isa, 198 * pci, pccard) should all use the same devclass to ensure that unit 199 * numbers do not conflict. 200 * 201 * Each devclass may also have a parent devclass. This is used when 202 * searching for device drivers to allow a form of inheritance. When 203 * matching drivers with devices, first the driver list of the parent 204 * device's devclass is searched. If no driver is found in that list, 205 * the search continues in the parent devclass (if any). 206 */ 207 typedef struct devclass *devclass_t; 208 209 /** 210 * @brief A device method 211 */ 212 #define device_method_t kobj_method_t 213 214 /** 215 * @brief Driver interrupt filter return values 216 * 217 * If a driver provides an interrupt filter routine it must return an 218 * integer consisting of oring together zero or more of the following 219 * flags: 220 * 221 * FILTER_STRAY - this device did not trigger the interrupt 222 * FILTER_HANDLED - the interrupt has been fully handled and can be EOId 223 * FILTER_SCHEDULE_THREAD - the threaded interrupt handler should be 224 * scheduled to execute 225 * 226 * If the driver does not provide a filter, then the interrupt code will 227 * act is if the filter had returned FILTER_SCHEDULE_THREAD. Note that it 228 * is illegal to specify any other flag with FILTER_STRAY and that it is 229 * illegal to not specify either of FILTER_HANDLED or FILTER_SCHEDULE_THREAD 230 * if FILTER_STRAY is not specified. 231 */ 232 #define FILTER_STRAY 0x01 233 #define FILTER_HANDLED 0x02 234 #define FILTER_SCHEDULE_THREAD 0x04 235 236 /** 237 * @brief Driver interrupt service routines 238 * 239 * The filter routine is run in primary interrupt context and may not 240 * block or use regular mutexes. It may only use spin mutexes for 241 * synchronization. The filter may either completely handle the 242 * interrupt or it may perform some of the work and defer more 243 * expensive work to the regular interrupt handler. If a filter 244 * routine is not registered by the driver, then the regular interrupt 245 * handler is always used to handle interrupts from this device. 246 * 247 * The regular interrupt handler executes in its own thread context 248 * and may use regular mutexes. However, it is prohibited from 249 * sleeping on a sleep queue. 250 */ 251 typedef int driver_filter_t(void*); 252 typedef void driver_intr_t(void*); 253 254 /** 255 * @brief Interrupt type bits. 256 * 257 * These flags may be passed by drivers to bus_setup_intr(9) when 258 * registering a new interrupt handler. The field is overloaded to 259 * specify both the interrupt's type and any special properties. 260 * 261 * The INTR_TYPE* bits will be passed to intr_priority(9) to determine 262 * the scheduling priority of the handler's ithread. Historically, each 263 * type was assigned a unique scheduling preference, but now only 264 * INTR_TYPE_CLK receives a default priority higher than other 265 * interrupts. See sys/priority.h. 266 * 267 * Buses may choose to modify or augment these flags as appropriate, 268 * e.g. nexus may apply INTR_EXCL. 269 */ 270 enum intr_type { 271 INTR_TYPE_TTY = 1, 272 INTR_TYPE_BIO = 2, 273 INTR_TYPE_NET = 4, 274 INTR_TYPE_CAM = 8, 275 INTR_TYPE_MISC = 16, 276 INTR_TYPE_CLK = 32, 277 INTR_TYPE_AV = 64, 278 INTR_EXCL = 256, /* exclusive interrupt */ 279 INTR_MPSAFE = 512, /* this interrupt is SMP safe */ 280 INTR_ENTROPY = 1024, /* this interrupt provides entropy */ 281 INTR_MD1 = 4096, /* flag reserved for MD use */ 282 INTR_MD2 = 8192, /* flag reserved for MD use */ 283 INTR_MD3 = 16384, /* flag reserved for MD use */ 284 INTR_MD4 = 32768 /* flag reserved for MD use */ 285 }; 286 287 enum intr_trigger { 288 INTR_TRIGGER_INVALID = -1, 289 INTR_TRIGGER_CONFORM = 0, 290 INTR_TRIGGER_EDGE = 1, 291 INTR_TRIGGER_LEVEL = 2 292 }; 293 294 enum intr_polarity { 295 INTR_POLARITY_CONFORM = 0, 296 INTR_POLARITY_HIGH = 1, 297 INTR_POLARITY_LOW = 2 298 }; 299 300 /** 301 * CPU sets supported by bus_get_cpus(). Note that not all sets may be 302 * supported for a given device. If a request is not supported by a 303 * device (or its parents), then bus_get_cpus() will fail with EINVAL. 304 */ 305 enum cpu_sets { 306 LOCAL_CPUS = 0, 307 INTR_CPUS 308 }; 309 310 typedef int (*devop_t)(void); 311 312 /** 313 * @brief This structure is deprecated. 314 * 315 * Use the kobj(9) macro DEFINE_CLASS to 316 * declare classes which implement device drivers. 317 */ 318 struct driver { 319 KOBJ_CLASS_FIELDS; 320 }; 321 322 /** 323 * @brief A resource mapping. 324 */ 325 struct resource_map { 326 bus_space_tag_t r_bustag; 327 bus_space_handle_t r_bushandle; 328 bus_size_t r_size; 329 void *r_vaddr; 330 }; 331 332 /** 333 * @brief Optional properties of a resource mapping request. 334 */ 335 struct resource_map_request { 336 size_t size; 337 rman_res_t offset; 338 rman_res_t length; 339 vm_memattr_t memattr; 340 }; 341 342 void resource_init_map_request_impl(struct resource_map_request *_args, 343 size_t _sz); 344 #define resource_init_map_request(rmr) \ 345 resource_init_map_request_impl((rmr), sizeof(*(rmr))) 346 347 /* 348 * Definitions for drivers which need to keep simple lists of resources 349 * for their child devices. 350 */ 351 struct resource; 352 353 /** 354 * @brief An entry for a single resource in a resource list. 355 */ 356 struct resource_list_entry { 357 STAILQ_ENTRY(resource_list_entry) link; 358 int type; /**< @brief type argument to alloc_resource */ 359 int rid; /**< @brief resource identifier */ 360 int flags; /**< @brief resource flags */ 361 struct resource *res; /**< @brief the real resource when allocated */ 362 rman_res_t start; /**< @brief start of resource range */ 363 rman_res_t end; /**< @brief end of resource range */ 364 rman_res_t count; /**< @brief count within range */ 365 }; 366 STAILQ_HEAD(resource_list, resource_list_entry); 367 368 #define RLE_RESERVED 0x0001 /* Reserved by the parent bus. */ 369 #define RLE_ALLOCATED 0x0002 /* Reserved resource is allocated. */ 370 #define RLE_PREFETCH 0x0004 /* Resource is a prefetch range. */ 371 372 void resource_list_init(struct resource_list *rl); 373 void resource_list_free(struct resource_list *rl); 374 struct resource_list_entry * 375 resource_list_add(struct resource_list *rl, 376 int type, int rid, 377 rman_res_t start, rman_res_t end, rman_res_t count); 378 int resource_list_add_next(struct resource_list *rl, 379 int type, 380 rman_res_t start, rman_res_t end, rman_res_t count); 381 int resource_list_busy(struct resource_list *rl, 382 int type, int rid); 383 int resource_list_reserved(struct resource_list *rl, int type, int rid); 384 struct resource_list_entry* 385 resource_list_find(struct resource_list *rl, 386 int type, int rid); 387 void resource_list_delete(struct resource_list *rl, 388 int type, int rid); 389 struct resource * 390 resource_list_alloc(struct resource_list *rl, 391 device_t bus, device_t child, 392 int type, int *rid, 393 rman_res_t start, rman_res_t end, 394 rman_res_t count, u_int flags); 395 int resource_list_release(struct resource_list *rl, 396 device_t bus, device_t child, 397 int type, int rid, struct resource *res); 398 int resource_list_release_active(struct resource_list *rl, 399 device_t bus, device_t child, 400 int type); 401 struct resource * 402 resource_list_reserve(struct resource_list *rl, 403 device_t bus, device_t child, 404 int type, int *rid, 405 rman_res_t start, rman_res_t end, 406 rman_res_t count, u_int flags); 407 int resource_list_unreserve(struct resource_list *rl, 408 device_t bus, device_t child, 409 int type, int rid); 410 void resource_list_purge(struct resource_list *rl); 411 int resource_list_print_type(struct resource_list *rl, 412 const char *name, int type, 413 const char *format); 414 415 /* 416 * The root bus, to which all top-level buses are attached. 417 */ 418 extern device_t root_bus; 419 extern devclass_t root_devclass; 420 void root_bus_configure(void); 421 422 /* 423 * Useful functions for implementing buses. 424 */ 425 426 struct _cpuset; 427 428 int bus_generic_activate_resource(device_t dev, device_t child, int type, 429 int rid, struct resource *r); 430 device_t 431 bus_generic_add_child(device_t dev, u_int order, const char *name, 432 int unit); 433 int bus_generic_adjust_resource(device_t bus, device_t child, int type, 434 struct resource *r, rman_res_t start, 435 rman_res_t end); 436 struct resource * 437 bus_generic_alloc_resource(device_t bus, device_t child, int type, 438 int *rid, rman_res_t start, rman_res_t end, 439 rman_res_t count, u_int flags); 440 int bus_generic_translate_resource(device_t dev, int type, rman_res_t start, 441 rman_res_t *newstart); 442 int bus_generic_attach(device_t dev); 443 int bus_generic_bind_intr(device_t dev, device_t child, 444 struct resource *irq, int cpu); 445 int bus_generic_child_location(device_t dev, device_t child, struct sbuf *sb); 446 int bus_generic_child_pnpinfo(device_t dev, device_t child, struct sbuf *sb); 447 int bus_generic_child_present(device_t dev, device_t child); 448 int bus_generic_config_intr(device_t, int, enum intr_trigger, 449 enum intr_polarity); 450 int bus_generic_describe_intr(device_t dev, device_t child, 451 struct resource *irq, void *cookie, 452 const char *descr); 453 int bus_generic_deactivate_resource(device_t dev, device_t child, int type, 454 int rid, struct resource *r); 455 int bus_generic_detach(device_t dev); 456 void bus_generic_driver_added(device_t dev, driver_t *driver); 457 int bus_generic_get_cpus(device_t dev, device_t child, enum cpu_sets op, 458 size_t setsize, struct _cpuset *cpuset); 459 bus_dma_tag_t 460 bus_generic_get_dma_tag(device_t dev, device_t child); 461 bus_space_tag_t 462 bus_generic_get_bus_tag(device_t dev, device_t child); 463 int bus_generic_get_domain(device_t dev, device_t child, int *domain); 464 ssize_t bus_generic_get_property(device_t dev, device_t child, 465 const char *propname, void *propvalue, 466 size_t size, device_property_type_t type); 467 struct resource_list * 468 bus_generic_get_resource_list(device_t, device_t); 469 int bus_generic_map_resource(device_t dev, device_t child, int type, 470 struct resource *r, 471 struct resource_map_request *args, 472 struct resource_map *map); 473 void bus_generic_new_pass(device_t dev); 474 int bus_print_child_header(device_t dev, device_t child); 475 int bus_print_child_domain(device_t dev, device_t child); 476 int bus_print_child_footer(device_t dev, device_t child); 477 int bus_generic_print_child(device_t dev, device_t child); 478 int bus_generic_probe(device_t dev); 479 int bus_generic_read_ivar(device_t dev, device_t child, int which, 480 uintptr_t *result); 481 int bus_generic_release_resource(device_t bus, device_t child, 482 int type, int rid, struct resource *r); 483 int bus_generic_resume(device_t dev); 484 int bus_generic_resume_child(device_t dev, device_t child); 485 int bus_generic_setup_intr(device_t dev, device_t child, 486 struct resource *irq, int flags, 487 driver_filter_t *filter, driver_intr_t *intr, 488 void *arg, void **cookiep); 489 490 struct resource * 491 bus_generic_rl_alloc_resource (device_t, device_t, int, int *, 492 rman_res_t, rman_res_t, rman_res_t, u_int); 493 void bus_generic_rl_delete_resource (device_t, device_t, int, int); 494 int bus_generic_rl_get_resource (device_t, device_t, int, int, rman_res_t *, 495 rman_res_t *); 496 int bus_generic_rl_set_resource (device_t, device_t, int, int, rman_res_t, 497 rman_res_t); 498 int bus_generic_rl_release_resource (device_t, device_t, int, int, 499 struct resource *); 500 501 int bus_generic_shutdown(device_t dev); 502 int bus_generic_suspend(device_t dev); 503 int bus_generic_suspend_child(device_t dev, device_t child); 504 int bus_generic_teardown_intr(device_t dev, device_t child, 505 struct resource *irq, void *cookie); 506 int bus_generic_suspend_intr(device_t dev, device_t child, 507 struct resource *irq); 508 int bus_generic_resume_intr(device_t dev, device_t child, 509 struct resource *irq); 510 int bus_generic_unmap_resource(device_t dev, device_t child, int type, 511 struct resource *r, 512 struct resource_map *map); 513 int bus_generic_write_ivar(device_t dev, device_t child, int which, 514 uintptr_t value); 515 int bus_generic_get_device_path(device_t bus, device_t child, const char *locator, 516 struct sbuf *sb); 517 int bus_helper_reset_post(device_t dev, int flags); 518 int bus_helper_reset_prepare(device_t dev, int flags); 519 int bus_null_rescan(device_t dev); 520 521 /* 522 * Wrapper functions for the BUS_*_RESOURCE methods to make client code 523 * a little simpler. 524 */ 525 526 struct resource_spec { 527 int type; 528 int rid; 529 int flags; 530 }; 531 #define RESOURCE_SPEC_END {-1, 0, 0} 532 533 int bus_alloc_resources(device_t dev, struct resource_spec *rs, 534 struct resource **res); 535 void bus_release_resources(device_t dev, const struct resource_spec *rs, 536 struct resource **res); 537 538 int bus_adjust_resource(device_t child, int type, struct resource *r, 539 rman_res_t start, rman_res_t end); 540 int bus_translate_resource(device_t child, int type, rman_res_t start, 541 rman_res_t *newstart); 542 struct resource *bus_alloc_resource(device_t dev, int type, int *rid, 543 rman_res_t start, rman_res_t end, 544 rman_res_t count, u_int flags); 545 int bus_activate_resource(device_t dev, int type, int rid, 546 struct resource *r); 547 int bus_deactivate_resource(device_t dev, int type, int rid, 548 struct resource *r); 549 int bus_map_resource(device_t dev, int type, struct resource *r, 550 struct resource_map_request *args, 551 struct resource_map *map); 552 int bus_unmap_resource(device_t dev, int type, struct resource *r, 553 struct resource_map *map); 554 int bus_get_cpus(device_t dev, enum cpu_sets op, size_t setsize, 555 struct _cpuset *cpuset); 556 bus_dma_tag_t bus_get_dma_tag(device_t dev); 557 bus_space_tag_t bus_get_bus_tag(device_t dev); 558 int bus_get_domain(device_t dev, int *domain); 559 int bus_release_resource(device_t dev, int type, int rid, 560 struct resource *r); 561 int bus_free_resource(device_t dev, int type, struct resource *r); 562 int bus_setup_intr(device_t dev, struct resource *r, int flags, 563 driver_filter_t filter, driver_intr_t handler, 564 void *arg, void **cookiep); 565 int bus_teardown_intr(device_t dev, struct resource *r, void *cookie); 566 int bus_suspend_intr(device_t dev, struct resource *r); 567 int bus_resume_intr(device_t dev, struct resource *r); 568 int bus_bind_intr(device_t dev, struct resource *r, int cpu); 569 int bus_describe_intr(device_t dev, struct resource *irq, void *cookie, 570 const char *fmt, ...) __printflike(4, 5); 571 int bus_set_resource(device_t dev, int type, int rid, 572 rman_res_t start, rman_res_t count); 573 int bus_get_resource(device_t dev, int type, int rid, 574 rman_res_t *startp, rman_res_t *countp); 575 rman_res_t bus_get_resource_start(device_t dev, int type, int rid); 576 rman_res_t bus_get_resource_count(device_t dev, int type, int rid); 577 void bus_delete_resource(device_t dev, int type, int rid); 578 int bus_child_present(device_t child); 579 int bus_child_pnpinfo(device_t child, struct sbuf *sb); 580 int bus_child_location(device_t child, struct sbuf *sb); 581 void bus_enumerate_hinted_children(device_t bus); 582 int bus_delayed_attach_children(device_t bus); 583 584 static __inline struct resource * 585 bus_alloc_resource_any(device_t dev, int type, int *rid, u_int flags) 586 { 587 return (bus_alloc_resource(dev, type, rid, 0, ~0, 1, flags)); 588 } 589 590 static __inline struct resource * 591 bus_alloc_resource_anywhere(device_t dev, int type, int *rid, 592 rman_res_t count, u_int flags) 593 { 594 return (bus_alloc_resource(dev, type, rid, 0, ~0, count, flags)); 595 } 596 597 /* 598 * Access functions for device. 599 */ 600 device_t device_add_child(device_t dev, const char *name, int unit); 601 device_t device_add_child_ordered(device_t dev, u_int order, 602 const char *name, int unit); 603 void device_busy(device_t dev); 604 int device_delete_child(device_t dev, device_t child); 605 int device_delete_children(device_t dev); 606 int device_attach(device_t dev); 607 int device_detach(device_t dev); 608 void device_disable(device_t dev); 609 void device_enable(device_t dev); 610 device_t device_find_child(device_t dev, const char *classname, 611 int unit); 612 const char *device_get_desc(device_t dev); 613 devclass_t device_get_devclass(device_t dev); 614 driver_t *device_get_driver(device_t dev); 615 u_int32_t device_get_flags(device_t dev); 616 device_t device_get_parent(device_t dev); 617 int device_get_children(device_t dev, device_t **listp, int *countp); 618 void *device_get_ivars(device_t dev); 619 void device_set_ivars(device_t dev, void *ivars); 620 const char *device_get_name(device_t dev); 621 const char *device_get_nameunit(device_t dev); 622 void *device_get_softc(device_t dev); 623 device_state_t device_get_state(device_t dev); 624 int device_get_unit(device_t dev); 625 struct sysctl_ctx_list *device_get_sysctl_ctx(device_t dev); 626 struct sysctl_oid *device_get_sysctl_tree(device_t dev); 627 int device_has_quiet_children(device_t dev); 628 int device_is_alive(device_t dev); /* did probe succeed? */ 629 int device_is_attached(device_t dev); /* did attach succeed? */ 630 int device_is_enabled(device_t dev); 631 int device_is_suspended(device_t dev); 632 int device_is_quiet(device_t dev); 633 device_t device_lookup_by_name(const char *name); 634 int device_print_prettyname(device_t dev); 635 int device_printf(device_t dev, const char *, ...) __printflike(2, 3); 636 int device_log(device_t dev, int pri, const char *, ...) __printflike(3, 4); 637 int device_probe(device_t dev); 638 int device_probe_and_attach(device_t dev); 639 int device_probe_child(device_t bus, device_t dev); 640 int device_quiesce(device_t dev); 641 void device_quiet(device_t dev); 642 void device_quiet_children(device_t dev); 643 void device_set_desc(device_t dev, const char* desc); 644 void device_set_desc_copy(device_t dev, const char* desc); 645 int device_set_devclass(device_t dev, const char *classname); 646 int device_set_devclass_fixed(device_t dev, const char *classname); 647 bool device_is_devclass_fixed(device_t dev); 648 int device_set_driver(device_t dev, driver_t *driver); 649 void device_set_flags(device_t dev, u_int32_t flags); 650 void device_set_softc(device_t dev, void *softc); 651 void device_free_softc(void *softc); 652 void device_claim_softc(device_t dev); 653 int device_set_unit(device_t dev, int unit); /* XXX DONT USE XXX */ 654 int device_shutdown(device_t dev); 655 void device_unbusy(device_t dev); 656 void device_verbose(device_t dev); 657 ssize_t device_get_property(device_t dev, const char *prop, void *val, 658 size_t sz, device_property_type_t type); 659 bool device_has_property(device_t dev, const char *prop); 660 661 /* 662 * Access functions for devclass. 663 */ 664 int devclass_add_driver(devclass_t dc, driver_t *driver, 665 int pass, devclass_t *dcp); 666 devclass_t devclass_create(const char *classname); 667 int devclass_delete_driver(devclass_t busclass, driver_t *driver); 668 devclass_t devclass_find(const char *classname); 669 const char *devclass_get_name(devclass_t dc); 670 device_t devclass_get_device(devclass_t dc, int unit); 671 void *devclass_get_softc(devclass_t dc, int unit); 672 int devclass_get_devices(devclass_t dc, device_t **listp, int *countp); 673 int devclass_get_drivers(devclass_t dc, driver_t ***listp, int *countp); 674 int devclass_get_count(devclass_t dc); 675 int devclass_get_maxunit(devclass_t dc); 676 int devclass_find_free_unit(devclass_t dc, int unit); 677 void devclass_set_parent(devclass_t dc, devclass_t pdc); 678 devclass_t devclass_get_parent(devclass_t dc); 679 struct sysctl_ctx_list *devclass_get_sysctl_ctx(devclass_t dc); 680 struct sysctl_oid *devclass_get_sysctl_tree(devclass_t dc); 681 682 /* 683 * Access functions for device resources. 684 */ 685 int resource_int_value(const char *name, int unit, const char *resname, 686 int *result); 687 int resource_long_value(const char *name, int unit, const char *resname, 688 long *result); 689 int resource_string_value(const char *name, int unit, const char *resname, 690 const char **result); 691 int resource_disabled(const char *name, int unit); 692 int resource_find_match(int *anchor, const char **name, int *unit, 693 const char *resname, const char *value); 694 int resource_find_dev(int *anchor, const char *name, int *unit, 695 const char *resname, const char *value); 696 int resource_unset_value(const char *name, int unit, const char *resname); 697 698 /* 699 * Functions for maintaining and checking consistency of 700 * bus information exported to userspace. 701 */ 702 int bus_data_generation_check(int generation); 703 void bus_data_generation_update(void); 704 705 /** 706 * Some convenience defines for probe routines to return. These are just 707 * suggested values, and there's nothing magical about them. 708 * BUS_PROBE_SPECIFIC is for devices that cannot be reprobed, and that no 709 * possible other driver may exist (typically legacy drivers who don't follow 710 * all the rules, or special needs drivers). BUS_PROBE_VENDOR is the 711 * suggested value that vendor supplied drivers use. This is for source or 712 * binary drivers that are not yet integrated into the FreeBSD tree. Its use 713 * in the base OS is prohibited. BUS_PROBE_DEFAULT is the normal return value 714 * for drivers to use. It is intended that nearly all of the drivers in the 715 * tree should return this value. BUS_PROBE_LOW_PRIORITY are for drivers that 716 * have special requirements like when there are two drivers that support 717 * overlapping series of hardware devices. In this case the one that supports 718 * the older part of the line would return this value, while the one that 719 * supports the newer ones would return BUS_PROBE_DEFAULT. BUS_PROBE_GENERIC 720 * is for drivers that wish to have a generic form and a specialized form, 721 * like is done with the pci bus and the acpi pci bus. BUS_PROBE_HOOVER is 722 * for those buses that implement a generic device placeholder for devices on 723 * the bus that have no more specific driver for them (aka ugen). 724 * BUS_PROBE_NOWILDCARD or lower means that the device isn't really bidding 725 * for a device node, but accepts only devices that its parent has told it 726 * use this driver. 727 */ 728 #define BUS_PROBE_SPECIFIC 0 /* Only I can use this device */ 729 #define BUS_PROBE_VENDOR (-10) /* Vendor supplied driver */ 730 #define BUS_PROBE_DEFAULT (-20) /* Base OS default driver */ 731 #define BUS_PROBE_LOW_PRIORITY (-40) /* Older, less desirable drivers */ 732 #define BUS_PROBE_GENERIC (-100) /* generic driver for dev */ 733 #define BUS_PROBE_HOOVER (-1000000) /* Driver for any dev on bus */ 734 #define BUS_PROBE_NOWILDCARD (-2000000000) /* No wildcard device matches */ 735 736 /** 737 * During boot, the device tree is scanned multiple times. Each scan, 738 * or pass, drivers may be attached to devices. Each driver 739 * attachment is assigned a pass number. Drivers may only probe and 740 * attach to devices if their pass number is less than or equal to the 741 * current system-wide pass number. The default pass is the last pass 742 * and is used by most drivers. Drivers needed by the scheduler are 743 * probed in earlier passes. 744 */ 745 #define BUS_PASS_ROOT 0 /* Used to attach root0. */ 746 #define BUS_PASS_BUS 10 /* Buses and bridges. */ 747 #define BUS_PASS_CPU 20 /* CPU devices. */ 748 #define BUS_PASS_RESOURCE 30 /* Resource discovery. */ 749 #define BUS_PASS_INTERRUPT 40 /* Interrupt controllers. */ 750 #define BUS_PASS_TIMER 50 /* Timers and clocks. */ 751 #define BUS_PASS_SCHEDULER 60 /* Start scheduler. */ 752 #define BUS_PASS_SUPPORTDEV 100000 /* Drivers which support DEFAULT drivers. */ 753 #define BUS_PASS_DEFAULT __INT_MAX /* Everything else. */ 754 755 #define BUS_PASS_ORDER_FIRST 0 756 #define BUS_PASS_ORDER_EARLY 2 757 #define BUS_PASS_ORDER_MIDDLE 5 758 #define BUS_PASS_ORDER_LATE 7 759 #define BUS_PASS_ORDER_LAST 9 760 761 #define BUS_LOCATOR_ACPI "ACPI" 762 #define BUS_LOCATOR_FREEBSD "FreeBSD" 763 #define BUS_LOCATOR_UEFI "UEFI" 764 #define BUS_LOCATOR_OFW "OFW" 765 766 extern int bus_current_pass; 767 768 void bus_set_pass(int pass); 769 770 /** 771 * Routines to lock / unlock the newbus lock. 772 * Must be taken out to interact with newbus. 773 */ 774 void bus_topo_lock(void); 775 void bus_topo_unlock(void); 776 struct mtx * bus_topo_mtx(void); 777 void bus_topo_assert(void); 778 779 /** 780 * Shorthands for constructing method tables. 781 */ 782 #define DEVMETHOD KOBJMETHOD 783 #define DEVMETHOD_END KOBJMETHOD_END 784 785 /* 786 * Some common device interfaces. 787 */ 788 #include "device_if.h" 789 #include "bus_if.h" 790 791 struct module; 792 793 int driver_module_handler(struct module *, int, void *); 794 795 /** 796 * Module support for automatically adding drivers to buses. 797 */ 798 struct driver_module_data { 799 int (*dmd_chainevh)(struct module *, int, void *); 800 void *dmd_chainarg; 801 const char *dmd_busname; 802 kobj_class_t dmd_driver; 803 devclass_t *dmd_devclass; 804 int dmd_pass; 805 }; 806 807 #define EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, \ 808 order, pass) \ 809 \ 810 static struct driver_module_data name##_##busname##_driver_mod = { \ 811 evh, arg, \ 812 #busname, \ 813 (kobj_class_t) &driver, \ 814 NULL, \ 815 pass \ 816 }; \ 817 \ 818 static moduledata_t name##_##busname##_mod = { \ 819 #busname "/" #name, \ 820 driver_module_handler, \ 821 &name##_##busname##_driver_mod \ 822 }; \ 823 DECLARE_MODULE(name##_##busname, name##_##busname##_mod, \ 824 SI_SUB_DRIVERS, order) 825 826 #define EARLY_DRIVER_MODULE(name, busname, driver, evh, arg, pass) \ 827 EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, \ 828 SI_ORDER_MIDDLE, pass) 829 830 #define DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, order) \ 831 EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, evh, arg, \ 832 order, BUS_PASS_DEFAULT) 833 834 #define DRIVER_MODULE(name, busname, driver, evh, arg) \ 835 EARLY_DRIVER_MODULE(name, busname, driver, evh, arg, \ 836 BUS_PASS_DEFAULT) 837 838 /** 839 * Generic ivar accessor generation macros for bus drivers 840 */ 841 #define __BUS_ACCESSOR(varp, var, ivarp, ivar, type) \ 842 \ 843 static __inline type varp ## _get_ ## var(device_t dev) \ 844 { \ 845 uintptr_t v; \ 846 int e __diagused; \ 847 e = BUS_READ_IVAR(device_get_parent(dev), dev, \ 848 ivarp ## _IVAR_ ## ivar, &v); \ 849 KASSERT(e == 0, ("%s failed for %s on bus %s, error = %d", \ 850 __func__, device_get_nameunit(dev), \ 851 device_get_nameunit(device_get_parent(dev)), e)); \ 852 return ((type) v); \ 853 } \ 854 \ 855 static __inline void varp ## _set_ ## var(device_t dev, type t) \ 856 { \ 857 uintptr_t v = (uintptr_t) t; \ 858 int e __diagused; \ 859 e = BUS_WRITE_IVAR(device_get_parent(dev), dev, \ 860 ivarp ## _IVAR_ ## ivar, v); \ 861 KASSERT(e == 0, ("%s failed for %s on bus %s, error = %d", \ 862 __func__, device_get_nameunit(dev), \ 863 device_get_nameunit(device_get_parent(dev)), e)); \ 864 } 865 866 struct device_location_cache; 867 typedef struct device_location_cache device_location_cache_t; 868 device_location_cache_t *dev_wired_cache_init(void); 869 void dev_wired_cache_fini(device_location_cache_t *dcp); 870 bool dev_wired_cache_match(device_location_cache_t *dcp, device_t dev, const char *at); 871 872 873 /** 874 * Shorthand macros, taking resource argument 875 * Generated with sys/tools/bus_macro.sh 876 */ 877 878 #define bus_barrier(r, o, l, f) \ 879 bus_space_barrier((r)->r_bustag, (r)->r_bushandle, (o), (l), (f)) 880 #define bus_poke_1(r, o, v) \ 881 bus_space_poke_1((r)->r_bustag, (r)->r_bushandle, (o), (v)) 882 #define bus_peek_1(r, o, vp) \ 883 bus_space_peek_1((r)->r_bustag, (r)->r_bushandle, (o), (vp)) 884 #define bus_read_1(r, o) \ 885 bus_space_read_1((r)->r_bustag, (r)->r_bushandle, (o)) 886 #define bus_read_multi_1(r, o, d, c) \ 887 bus_space_read_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 888 #define bus_read_region_1(r, o, d, c) \ 889 bus_space_read_region_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 890 #define bus_set_multi_1(r, o, v, c) \ 891 bus_space_set_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c)) 892 #define bus_set_region_1(r, o, v, c) \ 893 bus_space_set_region_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c)) 894 #define bus_write_1(r, o, v) \ 895 bus_space_write_1((r)->r_bustag, (r)->r_bushandle, (o), (v)) 896 #define bus_write_multi_1(r, o, d, c) \ 897 bus_space_write_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 898 #define bus_write_region_1(r, o, d, c) \ 899 bus_space_write_region_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 900 #define bus_read_stream_1(r, o) \ 901 bus_space_read_stream_1((r)->r_bustag, (r)->r_bushandle, (o)) 902 #define bus_read_multi_stream_1(r, o, d, c) \ 903 bus_space_read_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 904 #define bus_read_region_stream_1(r, o, d, c) \ 905 bus_space_read_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 906 #define bus_set_multi_stream_1(r, o, v, c) \ 907 bus_space_set_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c)) 908 #define bus_set_region_stream_1(r, o, v, c) \ 909 bus_space_set_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c)) 910 #define bus_write_stream_1(r, o, v) \ 911 bus_space_write_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v)) 912 #define bus_write_multi_stream_1(r, o, d, c) \ 913 bus_space_write_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 914 #define bus_write_region_stream_1(r, o, d, c) \ 915 bus_space_write_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 916 #define bus_poke_2(r, o, v) \ 917 bus_space_poke_2((r)->r_bustag, (r)->r_bushandle, (o), (v)) 918 #define bus_peek_2(r, o, vp) \ 919 bus_space_peek_2((r)->r_bustag, (r)->r_bushandle, (o), (vp)) 920 #define bus_read_2(r, o) \ 921 bus_space_read_2((r)->r_bustag, (r)->r_bushandle, (o)) 922 #define bus_read_multi_2(r, o, d, c) \ 923 bus_space_read_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 924 #define bus_read_region_2(r, o, d, c) \ 925 bus_space_read_region_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 926 #define bus_set_multi_2(r, o, v, c) \ 927 bus_space_set_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c)) 928 #define bus_set_region_2(r, o, v, c) \ 929 bus_space_set_region_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c)) 930 #define bus_write_2(r, o, v) \ 931 bus_space_write_2((r)->r_bustag, (r)->r_bushandle, (o), (v)) 932 #define bus_write_multi_2(r, o, d, c) \ 933 bus_space_write_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 934 #define bus_write_region_2(r, o, d, c) \ 935 bus_space_write_region_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 936 #define bus_read_stream_2(r, o) \ 937 bus_space_read_stream_2((r)->r_bustag, (r)->r_bushandle, (o)) 938 #define bus_read_multi_stream_2(r, o, d, c) \ 939 bus_space_read_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 940 #define bus_read_region_stream_2(r, o, d, c) \ 941 bus_space_read_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 942 #define bus_set_multi_stream_2(r, o, v, c) \ 943 bus_space_set_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c)) 944 #define bus_set_region_stream_2(r, o, v, c) \ 945 bus_space_set_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c)) 946 #define bus_write_stream_2(r, o, v) \ 947 bus_space_write_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v)) 948 #define bus_write_multi_stream_2(r, o, d, c) \ 949 bus_space_write_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 950 #define bus_write_region_stream_2(r, o, d, c) \ 951 bus_space_write_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 952 #define bus_poke_4(r, o, v) \ 953 bus_space_poke_4((r)->r_bustag, (r)->r_bushandle, (o), (v)) 954 #define bus_peek_4(r, o, vp) \ 955 bus_space_peek_4((r)->r_bustag, (r)->r_bushandle, (o), (vp)) 956 #define bus_read_4(r, o) \ 957 bus_space_read_4((r)->r_bustag, (r)->r_bushandle, (o)) 958 #define bus_read_multi_4(r, o, d, c) \ 959 bus_space_read_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 960 #define bus_read_region_4(r, o, d, c) \ 961 bus_space_read_region_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 962 #define bus_set_multi_4(r, o, v, c) \ 963 bus_space_set_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c)) 964 #define bus_set_region_4(r, o, v, c) \ 965 bus_space_set_region_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c)) 966 #define bus_write_4(r, o, v) \ 967 bus_space_write_4((r)->r_bustag, (r)->r_bushandle, (o), (v)) 968 #define bus_write_multi_4(r, o, d, c) \ 969 bus_space_write_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 970 #define bus_write_region_4(r, o, d, c) \ 971 bus_space_write_region_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 972 #define bus_read_stream_4(r, o) \ 973 bus_space_read_stream_4((r)->r_bustag, (r)->r_bushandle, (o)) 974 #define bus_read_multi_stream_4(r, o, d, c) \ 975 bus_space_read_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 976 #define bus_read_region_stream_4(r, o, d, c) \ 977 bus_space_read_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 978 #define bus_set_multi_stream_4(r, o, v, c) \ 979 bus_space_set_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c)) 980 #define bus_set_region_stream_4(r, o, v, c) \ 981 bus_space_set_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c)) 982 #define bus_write_stream_4(r, o, v) \ 983 bus_space_write_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v)) 984 #define bus_write_multi_stream_4(r, o, d, c) \ 985 bus_space_write_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 986 #define bus_write_region_stream_4(r, o, d, c) \ 987 bus_space_write_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 988 #define bus_poke_8(r, o, v) \ 989 bus_space_poke_8((r)->r_bustag, (r)->r_bushandle, (o), (v)) 990 #define bus_peek_8(r, o, vp) \ 991 bus_space_peek_8((r)->r_bustag, (r)->r_bushandle, (o), (vp)) 992 #define bus_read_8(r, o) \ 993 bus_space_read_8((r)->r_bustag, (r)->r_bushandle, (o)) 994 #define bus_read_multi_8(r, o, d, c) \ 995 bus_space_read_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 996 #define bus_read_region_8(r, o, d, c) \ 997 bus_space_read_region_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 998 #define bus_set_multi_8(r, o, v, c) \ 999 bus_space_set_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c)) 1000 #define bus_set_region_8(r, o, v, c) \ 1001 bus_space_set_region_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c)) 1002 #define bus_write_8(r, o, v) \ 1003 bus_space_write_8((r)->r_bustag, (r)->r_bushandle, (o), (v)) 1004 #define bus_write_multi_8(r, o, d, c) \ 1005 bus_space_write_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 1006 #define bus_write_region_8(r, o, d, c) \ 1007 bus_space_write_region_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 1008 #define bus_read_stream_8(r, o) \ 1009 bus_space_read_stream_8((r)->r_bustag, (r)->r_bushandle, (o)) 1010 #define bus_read_multi_stream_8(r, o, d, c) \ 1011 bus_space_read_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 1012 #define bus_read_region_stream_8(r, o, d, c) \ 1013 bus_space_read_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 1014 #define bus_set_multi_stream_8(r, o, v, c) \ 1015 bus_space_set_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c)) 1016 #define bus_set_region_stream_8(r, o, v, c) \ 1017 bus_space_set_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c)) 1018 #define bus_write_stream_8(r, o, v) \ 1019 bus_space_write_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v)) 1020 #define bus_write_multi_stream_8(r, o, d, c) \ 1021 bus_space_write_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 1022 #define bus_write_region_stream_8(r, o, d, c) \ 1023 bus_space_write_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c)) 1024 #endif /* _KERNEL */ 1025 1026 #endif /* !_SYS_BUS_H_ */
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