The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/sys/bus.h

Version: -  FREEBSD  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-2  -  FREEBSD-11-1  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-4  -  FREEBSD-10-3  -  FREEBSD-10-2  -  FREEBSD-10-1  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-3  -  FREEBSD-9-2  -  FREEBSD-9-1  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-4  -  FREEBSD-8-3  -  FREEBSD-8-2  -  FREEBSD-8-1  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-4  -  FREEBSD-7-3  -  FREEBSD-7-2  -  FREEBSD-7-1  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-4  -  FREEBSD-6-3  -  FREEBSD-6-2  -  FREEBSD-6-1  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-5  -  FREEBSD-5-4  -  FREEBSD-5-3  -  FREEBSD-5-2  -  FREEBSD-5-1  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
SearchContext: -  none  -  3  -  10 

    1 /*-
    2  * Copyright (c) 1997,1998,2003 Doug Rabson
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD: releng/11.1/sys/sys/bus.h 316369 2017-04-01 19:27:06Z jhibbits $
   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        1
   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 information exported to userspace.
   64  */
   65 struct u_device {
   66         uintptr_t       dv_handle;
   67         uintptr_t       dv_parent;
   68 
   69         char            dv_name[32];            /**< @brief Name of device in tree. */
   70         char            dv_desc[32];            /**< @brief Driver description */
   71         char            dv_drivername[32];      /**< @brief Driver name */
   72         char            dv_pnpinfo[128];        /**< @brief Plug and play info */
   73         char            dv_location[128];       /**< @brief Where is the device? */
   74         uint32_t        dv_devflags;            /**< @brief API Flags for device */
   75         uint16_t        dv_flags;               /**< @brief flags for dev state */
   76         device_state_t  dv_state;               /**< @brief State of attachment */
   77         /* XXX more driver info? */
   78 };
   79 
   80 /* Flags exported via dv_flags. */
   81 #define DF_ENABLED      0x01            /* device should be probed/attached */
   82 #define DF_FIXEDCLASS   0x02            /* devclass specified at create time */
   83 #define DF_WILDCARD     0x04            /* unit was originally wildcard */
   84 #define DF_DESCMALLOCED 0x08            /* description was malloced */
   85 #define DF_QUIET        0x10            /* don't print verbose attach message */
   86 #define DF_DONENOMATCH  0x20            /* don't execute DEVICE_NOMATCH again */
   87 #define DF_EXTERNALSOFTC 0x40           /* softc not allocated by us */
   88 #define DF_REBID        0x80            /* Can rebid after attach */
   89 #define DF_SUSPENDED    0x100           /* Device is suspended. */
   90 
   91 /**
   92  * @brief Device request structure used for ioctl's.
   93  *
   94  * Used for ioctl's on /dev/devctl2.  All device ioctl's
   95  * must have parameter definitions which begin with dr_name.
   96  */
   97 struct devreq_buffer {
   98         void    *buffer;
   99         size_t  length;
  100 };
  101 
  102 struct devreq {
  103         char            dr_name[128];
  104         int             dr_flags;               /* request-specific flags */
  105         union {
  106                 struct devreq_buffer dru_buffer;
  107                 void    *dru_data;
  108         } dr_dru;
  109 #define dr_buffer       dr_dru.dru_buffer       /* variable-sized buffer */
  110 #define dr_data         dr_dru.dru_data         /* fixed-size buffer */
  111 };
  112 
  113 #define DEV_ATTACH      _IOW('D', 1, struct devreq)
  114 #define DEV_DETACH      _IOW('D', 2, struct devreq)
  115 #define DEV_ENABLE      _IOW('D', 3, struct devreq)
  116 #define DEV_DISABLE     _IOW('D', 4, struct devreq)
  117 #define DEV_SUSPEND     _IOW('D', 5, struct devreq)
  118 #define DEV_RESUME      _IOW('D', 6, struct devreq)
  119 #define DEV_SET_DRIVER  _IOW('D', 7, struct devreq)
  120 #define DEV_CLEAR_DRIVER _IOW('D', 8, struct devreq)
  121 #define DEV_RESCAN      _IOW('D', 9, struct devreq)
  122 #define DEV_DELETE      _IOW('D', 10, struct devreq)
  123 
  124 /* Flags for DEV_DETACH and DEV_DISABLE. */
  125 #define DEVF_FORCE_DETACH       0x0000001
  126 
  127 /* Flags for DEV_SET_DRIVER. */
  128 #define DEVF_SET_DRIVER_DETACH  0x0000001       /* Detach existing driver. */
  129 
  130 /* Flags for DEV_CLEAR_DRIVER. */
  131 #define DEVF_CLEAR_DRIVER_DETACH 0x0000001      /* Detach existing driver. */
  132 
  133 /* Flags for DEV_DELETE. */
  134 #define DEVF_FORCE_DELETE       0x0000001
  135 
  136 #ifdef _KERNEL
  137 
  138 #include <sys/eventhandler.h>
  139 #include <sys/kobj.h>
  140 
  141 /**
  142  * devctl hooks.  Typically one should use the devctl_notify
  143  * hook to send the message.  However, devctl_queue_data is also
  144  * included in case devctl_notify isn't sufficiently general.
  145  */
  146 boolean_t devctl_process_running(void);
  147 void devctl_notify_f(const char *__system, const char *__subsystem,
  148     const char *__type, const char *__data, int __flags);
  149 void devctl_notify(const char *__system, const char *__subsystem,
  150     const char *__type, const char *__data);
  151 void devctl_queue_data_f(char *__data, int __flags);
  152 void devctl_queue_data(char *__data);
  153 void devctl_safe_quote(char *__dst, const char *__src, size_t len);
  154 
  155 /**
  156  * Device name parsers.  Hook to allow device enumerators to map
  157  * scheme-specific names to a device.
  158  */
  159 typedef void (*dev_lookup_fn)(void *arg, const char *name,
  160     device_t *result);
  161 EVENTHANDLER_DECLARE(dev_lookup, dev_lookup_fn);
  162 
  163 /**
  164  * @brief A device driver (included mainly for compatibility with
  165  * FreeBSD 4.x).
  166  */
  167 typedef struct kobj_class       driver_t;
  168 
  169 /**
  170  * @brief A device class
  171  *
  172  * The devclass object has two main functions in the system. The first
  173  * is to manage the allocation of unit numbers for device instances
  174  * and the second is to hold the list of device drivers for a
  175  * particular bus type. Each devclass has a name and there cannot be
  176  * two devclasses with the same name. This ensures that unique unit
  177  * numbers are allocated to device instances.
  178  *
  179  * Drivers that support several different bus attachments (e.g. isa,
  180  * pci, pccard) should all use the same devclass to ensure that unit
  181  * numbers do not conflict.
  182  *
  183  * Each devclass may also have a parent devclass. This is used when
  184  * searching for device drivers to allow a form of inheritance. When
  185  * matching drivers with devices, first the driver list of the parent
  186  * device's devclass is searched. If no driver is found in that list,
  187  * the search continues in the parent devclass (if any).
  188  */
  189 typedef struct devclass         *devclass_t;
  190 
  191 /**
  192  * @brief A device method
  193  */
  194 #define device_method_t         kobj_method_t
  195 
  196 /**
  197  * @brief Driver interrupt filter return values
  198  *
  199  * If a driver provides an interrupt filter routine it must return an
  200  * integer consisting of oring together zero or more of the following
  201  * flags:
  202  *
  203  *      FILTER_STRAY    - this device did not trigger the interrupt
  204  *      FILTER_HANDLED  - the interrupt has been fully handled and can be EOId
  205  *      FILTER_SCHEDULE_THREAD - the threaded interrupt handler should be
  206  *                        scheduled to execute
  207  *
  208  * If the driver does not provide a filter, then the interrupt code will
  209  * act is if the filter had returned FILTER_SCHEDULE_THREAD.  Note that it
  210  * is illegal to specify any other flag with FILTER_STRAY and that it is
  211  * illegal to not specify either of FILTER_HANDLED or FILTER_SCHEDULE_THREAD
  212  * if FILTER_STRAY is not specified.
  213  */
  214 #define FILTER_STRAY            0x01
  215 #define FILTER_HANDLED          0x02
  216 #define FILTER_SCHEDULE_THREAD  0x04
  217 
  218 /**
  219  * @brief Driver interrupt service routines
  220  *
  221  * The filter routine is run in primary interrupt context and may not
  222  * block or use regular mutexes.  It may only use spin mutexes for
  223  * synchronization.  The filter may either completely handle the
  224  * interrupt or it may perform some of the work and defer more
  225  * expensive work to the regular interrupt handler.  If a filter
  226  * routine is not registered by the driver, then the regular interrupt
  227  * handler is always used to handle interrupts from this device.
  228  *
  229  * The regular interrupt handler executes in its own thread context
  230  * and may use regular mutexes.  However, it is prohibited from
  231  * sleeping on a sleep queue.
  232  */
  233 typedef int driver_filter_t(void*);
  234 typedef void driver_intr_t(void*);
  235 
  236 /**
  237  * @brief Interrupt type bits.
  238  * 
  239  * These flags are used both by newbus interrupt
  240  * registration (nexus.c) and also in struct intrec, which defines
  241  * interrupt properties.
  242  *
  243  * XXX We should probably revisit this and remove the vestiges of the
  244  * spls implicit in names like INTR_TYPE_TTY. In the meantime, don't
  245  * confuse things by renaming them (Grog, 18 July 2000).
  246  *
  247  * Buses which do interrupt remapping will want to change their type
  248  * to reflect what sort of devices are underneath.
  249  */
  250 enum intr_type {
  251         INTR_TYPE_TTY = 1,
  252         INTR_TYPE_BIO = 2,
  253         INTR_TYPE_NET = 4,
  254         INTR_TYPE_CAM = 8,
  255         INTR_TYPE_MISC = 16,
  256         INTR_TYPE_CLK = 32,
  257         INTR_TYPE_AV = 64,
  258         INTR_EXCL = 256,                /* exclusive interrupt */
  259         INTR_MPSAFE = 512,              /* this interrupt is SMP safe */
  260         INTR_ENTROPY = 1024,            /* this interrupt provides entropy */
  261         INTR_MD1 = 4096,                /* flag reserved for MD use */
  262         INTR_MD2 = 8192,                /* flag reserved for MD use */
  263         INTR_MD3 = 16384,               /* flag reserved for MD use */
  264         INTR_MD4 = 32768                /* flag reserved for MD use */
  265 };
  266 
  267 enum intr_trigger {
  268         INTR_TRIGGER_INVALID = -1,
  269         INTR_TRIGGER_CONFORM = 0,
  270         INTR_TRIGGER_EDGE = 1,
  271         INTR_TRIGGER_LEVEL = 2
  272 };
  273 
  274 enum intr_polarity {
  275         INTR_POLARITY_CONFORM = 0,
  276         INTR_POLARITY_HIGH = 1,
  277         INTR_POLARITY_LOW = 2
  278 };
  279 
  280 /**
  281  * CPU sets supported by bus_get_cpus().  Note that not all sets may be
  282  * supported for a given device.  If a request is not supported by a
  283  * device (or its parents), then bus_get_cpus() will fail with EINVAL.
  284  */
  285 enum cpu_sets {
  286         LOCAL_CPUS = 0,
  287         INTR_CPUS
  288 };
  289 
  290 typedef int (*devop_t)(void);
  291 
  292 /**
  293  * @brief This structure is deprecated.
  294  *
  295  * Use the kobj(9) macro DEFINE_CLASS to
  296  * declare classes which implement device drivers.
  297  */
  298 struct driver {
  299         KOBJ_CLASS_FIELDS;
  300 };
  301 
  302 /**
  303  * @brief A resource mapping.
  304  */
  305 struct resource_map {
  306         bus_space_tag_t r_bustag;
  307         bus_space_handle_t r_bushandle;
  308         bus_size_t r_size;
  309         void    *r_vaddr;
  310 };
  311         
  312 /**
  313  * @brief Optional properties of a resource mapping request.
  314  */
  315 struct resource_map_request {
  316         size_t  size;
  317         rman_res_t offset;
  318         rman_res_t length;
  319         vm_memattr_t memattr;
  320 };
  321 
  322 void    resource_init_map_request_impl(struct resource_map_request *_args,
  323             size_t _sz);
  324 #define resource_init_map_request(rmr)                                  \
  325         resource_init_map_request_impl((rmr), sizeof(*(rmr)))
  326 
  327 /*
  328  * Definitions for drivers which need to keep simple lists of resources
  329  * for their child devices.
  330  */
  331 struct  resource;
  332 
  333 /**
  334  * @brief An entry for a single resource in a resource list.
  335  */
  336 struct resource_list_entry {
  337         STAILQ_ENTRY(resource_list_entry) link;
  338         int     type;                   /**< @brief type argument to alloc_resource */
  339         int     rid;                    /**< @brief resource identifier */
  340         int     flags;                  /**< @brief resource flags */
  341         struct  resource *res;          /**< @brief the real resource when allocated */
  342         rman_res_t      start;          /**< @brief start of resource range */
  343         rman_res_t      end;            /**< @brief end of resource range */
  344         rman_res_t      count;                  /**< @brief count within range */
  345 };
  346 STAILQ_HEAD(resource_list, resource_list_entry);
  347 
  348 #define RLE_RESERVED            0x0001  /* Reserved by the parent bus. */
  349 #define RLE_ALLOCATED           0x0002  /* Reserved resource is allocated. */
  350 #define RLE_PREFETCH            0x0004  /* Resource is a prefetch range. */
  351 
  352 void    resource_list_init(struct resource_list *rl);
  353 void    resource_list_free(struct resource_list *rl);
  354 struct resource_list_entry *
  355         resource_list_add(struct resource_list *rl,
  356                           int type, int rid,
  357                           rman_res_t start, rman_res_t end, rman_res_t count);
  358 int     resource_list_add_next(struct resource_list *rl,
  359                           int type,
  360                           rman_res_t start, rman_res_t end, rman_res_t count);
  361 int     resource_list_busy(struct resource_list *rl,
  362                            int type, int rid);
  363 int     resource_list_reserved(struct resource_list *rl, int type, int rid);
  364 struct resource_list_entry*
  365         resource_list_find(struct resource_list *rl,
  366                            int type, int rid);
  367 void    resource_list_delete(struct resource_list *rl,
  368                              int type, int rid);
  369 struct resource *
  370         resource_list_alloc(struct resource_list *rl,
  371                             device_t bus, device_t child,
  372                             int type, int *rid,
  373                             rman_res_t start, rman_res_t end,
  374                             rman_res_t count, u_int flags);
  375 int     resource_list_release(struct resource_list *rl,
  376                               device_t bus, device_t child,
  377                               int type, int rid, struct resource *res);
  378 int     resource_list_release_active(struct resource_list *rl,
  379                                      device_t bus, device_t child,
  380                                      int type);
  381 struct resource *
  382         resource_list_reserve(struct resource_list *rl,
  383                               device_t bus, device_t child,
  384                               int type, int *rid,
  385                               rman_res_t start, rman_res_t end,
  386                               rman_res_t count, u_int flags);
  387 int     resource_list_unreserve(struct resource_list *rl,
  388                                 device_t bus, device_t child,
  389                                 int type, int rid);
  390 void    resource_list_purge(struct resource_list *rl);
  391 int     resource_list_print_type(struct resource_list *rl,
  392                                  const char *name, int type,
  393                                  const char *format);
  394 
  395 /*
  396  * The root bus, to which all top-level busses are attached.
  397  */
  398 extern device_t root_bus;
  399 extern devclass_t root_devclass;
  400 void    root_bus_configure(void);
  401 
  402 /*
  403  * Useful functions for implementing busses.
  404  */
  405 
  406 int     bus_generic_activate_resource(device_t dev, device_t child, int type,
  407                                       int rid, struct resource *r);
  408 device_t
  409         bus_generic_add_child(device_t dev, u_int order, const char *name,
  410                               int unit);
  411 int     bus_generic_adjust_resource(device_t bus, device_t child, int type,
  412                                     struct resource *r, rman_res_t start,
  413                                     rman_res_t end);
  414 struct resource *
  415         bus_generic_alloc_resource(device_t bus, device_t child, int type,
  416                                    int *rid, rman_res_t start, rman_res_t end,
  417                                    rman_res_t count, u_int flags);
  418 int     bus_generic_attach(device_t dev);
  419 int     bus_generic_bind_intr(device_t dev, device_t child,
  420                               struct resource *irq, int cpu);
  421 int     bus_generic_child_present(device_t dev, device_t child);
  422 int     bus_generic_config_intr(device_t, int, enum intr_trigger,
  423                                 enum intr_polarity);
  424 int     bus_generic_describe_intr(device_t dev, device_t child,
  425                                   struct resource *irq, void *cookie,
  426                                   const char *descr);
  427 int     bus_generic_deactivate_resource(device_t dev, device_t child, int type,
  428                                         int rid, struct resource *r);
  429 int     bus_generic_detach(device_t dev);
  430 void    bus_generic_driver_added(device_t dev, driver_t *driver);
  431 int     bus_generic_get_cpus(device_t dev, device_t child, enum cpu_sets op,
  432                              size_t setsize, struct _cpuset *cpuset);
  433 bus_dma_tag_t
  434         bus_generic_get_dma_tag(device_t dev, device_t child);
  435 bus_space_tag_t
  436         bus_generic_get_bus_tag(device_t dev, device_t child);
  437 int     bus_generic_get_domain(device_t dev, device_t child, int *domain);
  438 struct resource_list *
  439         bus_generic_get_resource_list (device_t, device_t);
  440 int     bus_generic_map_resource(device_t dev, device_t child, int type,
  441                                  struct resource *r,
  442                                  struct resource_map_request *args,
  443                                  struct resource_map *map);
  444 void    bus_generic_new_pass(device_t dev);
  445 int     bus_print_child_header(device_t dev, device_t child);
  446 int     bus_print_child_domain(device_t dev, device_t child);
  447 int     bus_print_child_footer(device_t dev, device_t child);
  448 int     bus_generic_print_child(device_t dev, device_t child);
  449 int     bus_generic_probe(device_t dev);
  450 int     bus_generic_read_ivar(device_t dev, device_t child, int which,
  451                               uintptr_t *result);
  452 int     bus_generic_release_resource(device_t bus, device_t child,
  453                                      int type, int rid, struct resource *r);
  454 int     bus_generic_resume(device_t dev);
  455 int     bus_generic_resume_child(device_t dev, device_t child);
  456 int     bus_generic_setup_intr(device_t dev, device_t child,
  457                                struct resource *irq, int flags,
  458                                driver_filter_t *filter, driver_intr_t *intr, 
  459                                void *arg, void **cookiep);
  460 
  461 struct resource *
  462         bus_generic_rl_alloc_resource (device_t, device_t, int, int *,
  463                                        rman_res_t, rman_res_t, rman_res_t, u_int);
  464 void    bus_generic_rl_delete_resource (device_t, device_t, int, int);
  465 int     bus_generic_rl_get_resource (device_t, device_t, int, int, rman_res_t *,
  466                                      rman_res_t *);
  467 int     bus_generic_rl_set_resource (device_t, device_t, int, int, rman_res_t,
  468                                      rman_res_t);
  469 int     bus_generic_rl_release_resource (device_t, device_t, int, int,
  470                                          struct resource *);
  471 
  472 int     bus_generic_shutdown(device_t dev);
  473 int     bus_generic_suspend(device_t dev);
  474 int     bus_generic_suspend_child(device_t dev, device_t child);
  475 int     bus_generic_teardown_intr(device_t dev, device_t child,
  476                                   struct resource *irq, void *cookie);
  477 int     bus_generic_unmap_resource(device_t dev, device_t child, int type,
  478                                    struct resource *r,
  479                                    struct resource_map *map);
  480 int     bus_generic_write_ivar(device_t dev, device_t child, int which,
  481                                uintptr_t value);
  482 int     bus_null_rescan(device_t dev);
  483 
  484 /*
  485  * Wrapper functions for the BUS_*_RESOURCE methods to make client code
  486  * a little simpler.
  487  */
  488 
  489 struct resource_spec {
  490         int     type;
  491         int     rid;
  492         int     flags;
  493 };
  494 
  495 int     bus_alloc_resources(device_t dev, struct resource_spec *rs,
  496                             struct resource **res);
  497 void    bus_release_resources(device_t dev, const struct resource_spec *rs,
  498                               struct resource **res);
  499 
  500 int     bus_adjust_resource(device_t child, int type, struct resource *r,
  501                             rman_res_t start, rman_res_t end);
  502 struct  resource *bus_alloc_resource(device_t dev, int type, int *rid,
  503                                      rman_res_t start, rman_res_t end,
  504                                      rman_res_t count, u_int flags);
  505 int     bus_activate_resource(device_t dev, int type, int rid,
  506                               struct resource *r);
  507 int     bus_deactivate_resource(device_t dev, int type, int rid,
  508                                 struct resource *r);
  509 int     bus_map_resource(device_t dev, int type, struct resource *r,
  510                          struct resource_map_request *args,
  511                          struct resource_map *map);
  512 int     bus_unmap_resource(device_t dev, int type, struct resource *r,
  513                            struct resource_map *map);
  514 int     bus_get_cpus(device_t dev, enum cpu_sets op, size_t setsize,
  515                      struct _cpuset *cpuset);
  516 bus_dma_tag_t bus_get_dma_tag(device_t dev);
  517 bus_space_tag_t bus_get_bus_tag(device_t dev);
  518 int     bus_get_domain(device_t dev, int *domain);
  519 int     bus_release_resource(device_t dev, int type, int rid,
  520                              struct resource *r);
  521 int     bus_free_resource(device_t dev, int type, struct resource *r);
  522 int     bus_setup_intr(device_t dev, struct resource *r, int flags,
  523                        driver_filter_t filter, driver_intr_t handler, 
  524                        void *arg, void **cookiep);
  525 int     bus_teardown_intr(device_t dev, struct resource *r, void *cookie);
  526 int     bus_bind_intr(device_t dev, struct resource *r, int cpu);
  527 int     bus_describe_intr(device_t dev, struct resource *irq, void *cookie,
  528                           const char *fmt, ...) __printflike(4, 5);
  529 int     bus_set_resource(device_t dev, int type, int rid,
  530                          rman_res_t start, rman_res_t count);
  531 int     bus_get_resource(device_t dev, int type, int rid,
  532                          rman_res_t *startp, rman_res_t *countp);
  533 rman_res_t      bus_get_resource_start(device_t dev, int type, int rid);
  534 rman_res_t      bus_get_resource_count(device_t dev, int type, int rid);
  535 void    bus_delete_resource(device_t dev, int type, int rid);
  536 int     bus_child_present(device_t child);
  537 int     bus_child_pnpinfo_str(device_t child, char *buf, size_t buflen);
  538 int     bus_child_location_str(device_t child, char *buf, size_t buflen);
  539 void    bus_enumerate_hinted_children(device_t bus);
  540 
  541 static __inline struct resource *
  542 bus_alloc_resource_any(device_t dev, int type, int *rid, u_int flags)
  543 {
  544         return (bus_alloc_resource(dev, type, rid, 0, ~0, 1, flags));
  545 }
  546 
  547 static __inline struct resource *
  548 bus_alloc_resource_anywhere(device_t dev, int type, int *rid,
  549     rman_res_t count, u_int flags)
  550 {
  551         return (bus_alloc_resource(dev, type, rid, 0, ~0, count, flags));
  552 }
  553 
  554 /*
  555  * Access functions for device.
  556  */
  557 device_t        device_add_child(device_t dev, const char *name, int unit);
  558 device_t        device_add_child_ordered(device_t dev, u_int order,
  559                                          const char *name, int unit);
  560 void    device_busy(device_t dev);
  561 int     device_delete_child(device_t dev, device_t child);
  562 int     device_delete_children(device_t dev);
  563 int     device_attach(device_t dev);
  564 int     device_detach(device_t dev);
  565 void    device_disable(device_t dev);
  566 void    device_enable(device_t dev);
  567 device_t        device_find_child(device_t dev, const char *classname,
  568                                   int unit);
  569 const char      *device_get_desc(device_t dev);
  570 devclass_t      device_get_devclass(device_t dev);
  571 driver_t        *device_get_driver(device_t dev);
  572 u_int32_t       device_get_flags(device_t dev);
  573 device_t        device_get_parent(device_t dev);
  574 int     device_get_children(device_t dev, device_t **listp, int *countp);
  575 void    *device_get_ivars(device_t dev);
  576 void    device_set_ivars(device_t dev, void *ivars);
  577 const   char *device_get_name(device_t dev);
  578 const   char *device_get_nameunit(device_t dev);
  579 void    *device_get_softc(device_t dev);
  580 device_state_t  device_get_state(device_t dev);
  581 int     device_get_unit(device_t dev);
  582 struct sysctl_ctx_list *device_get_sysctl_ctx(device_t dev);
  583 struct sysctl_oid *device_get_sysctl_tree(device_t dev);
  584 int     device_is_alive(device_t dev);  /* did probe succeed? */
  585 int     device_is_attached(device_t dev);       /* did attach succeed? */
  586 int     device_is_enabled(device_t dev);
  587 int     device_is_suspended(device_t dev);
  588 int     device_is_quiet(device_t dev);
  589 device_t device_lookup_by_name(const char *name);
  590 int     device_print_prettyname(device_t dev);
  591 int     device_printf(device_t dev, const char *, ...) __printflike(2, 3);
  592 int     device_probe(device_t dev);
  593 int     device_probe_and_attach(device_t dev);
  594 int     device_probe_child(device_t bus, device_t dev);
  595 int     device_quiesce(device_t dev);
  596 void    device_quiet(device_t dev);
  597 void    device_set_desc(device_t dev, const char* desc);
  598 void    device_set_desc_copy(device_t dev, const char* desc);
  599 int     device_set_devclass(device_t dev, const char *classname);
  600 int     device_set_devclass_fixed(device_t dev, const char *classname);
  601 int     device_set_driver(device_t dev, driver_t *driver);
  602 void    device_set_flags(device_t dev, u_int32_t flags);
  603 void    device_set_softc(device_t dev, void *softc);
  604 void    device_free_softc(void *softc);
  605 void    device_claim_softc(device_t dev);
  606 int     device_set_unit(device_t dev, int unit);        /* XXX DONT USE XXX */
  607 int     device_shutdown(device_t dev);
  608 void    device_unbusy(device_t dev);
  609 void    device_verbose(device_t dev);
  610 
  611 /*
  612  * Access functions for devclass.
  613  */
  614 int             devclass_add_driver(devclass_t dc, driver_t *driver,
  615                                     int pass, devclass_t *dcp);
  616 devclass_t      devclass_create(const char *classname);
  617 int             devclass_delete_driver(devclass_t busclass, driver_t *driver);
  618 devclass_t      devclass_find(const char *classname);
  619 const char      *devclass_get_name(devclass_t dc);
  620 device_t        devclass_get_device(devclass_t dc, int unit);
  621 void    *devclass_get_softc(devclass_t dc, int unit);
  622 int     devclass_get_devices(devclass_t dc, device_t **listp, int *countp);
  623 int     devclass_get_drivers(devclass_t dc, driver_t ***listp, int *countp);
  624 int     devclass_get_count(devclass_t dc);
  625 int     devclass_get_maxunit(devclass_t dc);
  626 int     devclass_find_free_unit(devclass_t dc, int unit);
  627 void    devclass_set_parent(devclass_t dc, devclass_t pdc);
  628 devclass_t      devclass_get_parent(devclass_t dc);
  629 struct sysctl_ctx_list *devclass_get_sysctl_ctx(devclass_t dc);
  630 struct sysctl_oid *devclass_get_sysctl_tree(devclass_t dc);
  631 
  632 /*
  633  * Access functions for device resources.
  634  */
  635 
  636 int     resource_int_value(const char *name, int unit, const char *resname,
  637                            int *result);
  638 int     resource_long_value(const char *name, int unit, const char *resname,
  639                             long *result);
  640 int     resource_string_value(const char *name, int unit, const char *resname,
  641                               const char **result);
  642 int     resource_disabled(const char *name, int unit);
  643 int     resource_find_match(int *anchor, const char **name, int *unit,
  644                             const char *resname, const char *value);
  645 int     resource_find_dev(int *anchor, const char *name, int *unit,
  646                           const char *resname, const char *value);
  647 int     resource_set_int(const char *name, int unit, const char *resname,
  648                          int value);
  649 int     resource_set_long(const char *name, int unit, const char *resname,
  650                           long value);
  651 int     resource_set_string(const char *name, int unit, const char *resname,
  652                             const char *value);
  653 int     resource_unset_value(const char *name, int unit, const char *resname);
  654 
  655 /*
  656  * Functions for maintaining and checking consistency of
  657  * bus information exported to userspace.
  658  */
  659 int     bus_data_generation_check(int generation);
  660 void    bus_data_generation_update(void);
  661 
  662 /**
  663  * Some convenience defines for probe routines to return.  These are just
  664  * suggested values, and there's nothing magical about them.
  665  * BUS_PROBE_SPECIFIC is for devices that cannot be reprobed, and that no
  666  * possible other driver may exist (typically legacy drivers who don't fallow
  667  * all the rules, or special needs drivers).  BUS_PROBE_VENDOR is the
  668  * suggested value that vendor supplied drivers use.  This is for source or
  669  * binary drivers that are not yet integrated into the FreeBSD tree.  Its use
  670  * in the base OS is prohibited.  BUS_PROBE_DEFAULT is the normal return value
  671  * for drivers to use.  It is intended that nearly all of the drivers in the
  672  * tree should return this value.  BUS_PROBE_LOW_PRIORITY are for drivers that
  673  * have special requirements like when there are two drivers that support
  674  * overlapping series of hardware devices.  In this case the one that supports
  675  * the older part of the line would return this value, while the one that
  676  * supports the newer ones would return BUS_PROBE_DEFAULT.  BUS_PROBE_GENERIC
  677  * is for drivers that wish to have a generic form and a specialized form,
  678  * like is done with the pci bus and the acpi pci bus.  BUS_PROBE_HOOVER is
  679  * for those busses that implement a generic device place-holder for devices on
  680  * the bus that have no more specific driver for them (aka ugen).
  681  * BUS_PROBE_NOWILDCARD or lower means that the device isn't really bidding
  682  * for a device node, but accepts only devices that its parent has told it
  683  * use this driver.
  684  */
  685 #define BUS_PROBE_SPECIFIC      0       /* Only I can use this device */
  686 #define BUS_PROBE_VENDOR        (-10)   /* Vendor supplied driver */
  687 #define BUS_PROBE_DEFAULT       (-20)   /* Base OS default driver */
  688 #define BUS_PROBE_LOW_PRIORITY  (-40)   /* Older, less desirable drivers */
  689 #define BUS_PROBE_GENERIC       (-100)  /* generic driver for dev */
  690 #define BUS_PROBE_HOOVER        (-1000000) /* Driver for any dev on bus */
  691 #define BUS_PROBE_NOWILDCARD    (-2000000000) /* No wildcard device matches */
  692 
  693 /**
  694  * During boot, the device tree is scanned multiple times.  Each scan,
  695  * or pass, drivers may be attached to devices.  Each driver
  696  * attachment is assigned a pass number.  Drivers may only probe and
  697  * attach to devices if their pass number is less than or equal to the
  698  * current system-wide pass number.  The default pass is the last pass
  699  * and is used by most drivers.  Drivers needed by the scheduler are
  700  * probed in earlier passes.
  701  */
  702 #define BUS_PASS_ROOT           0       /* Used to attach root0. */
  703 #define BUS_PASS_BUS            10      /* Busses and bridges. */
  704 #define BUS_PASS_CPU            20      /* CPU devices. */
  705 #define BUS_PASS_RESOURCE       30      /* Resource discovery. */
  706 #define BUS_PASS_INTERRUPT      40      /* Interrupt controllers. */
  707 #define BUS_PASS_TIMER          50      /* Timers and clocks. */
  708 #define BUS_PASS_SCHEDULER      60      /* Start scheduler. */
  709 #define BUS_PASS_DEFAULT        __INT_MAX /* Everything else. */
  710 
  711 #define BUS_PASS_ORDER_FIRST    0
  712 #define BUS_PASS_ORDER_EARLY    2
  713 #define BUS_PASS_ORDER_MIDDLE   5
  714 #define BUS_PASS_ORDER_LATE     7
  715 #define BUS_PASS_ORDER_LAST     9
  716 
  717 extern int bus_current_pass;
  718 
  719 void    bus_set_pass(int pass);
  720 
  721 /**
  722  * Shorthands for constructing method tables.
  723  */
  724 #define DEVMETHOD       KOBJMETHOD
  725 #define DEVMETHOD_END   KOBJMETHOD_END
  726 
  727 /*
  728  * Some common device interfaces.
  729  */
  730 #include "device_if.h"
  731 #include "bus_if.h"
  732 
  733 struct  module;
  734 
  735 int     driver_module_handler(struct module *, int, void *);
  736 
  737 /**
  738  * Module support for automatically adding drivers to busses.
  739  */
  740 struct driver_module_data {
  741         int             (*dmd_chainevh)(struct module *, int, void *);
  742         void            *dmd_chainarg;
  743         const char      *dmd_busname;
  744         kobj_class_t    dmd_driver;
  745         devclass_t      *dmd_devclass;
  746         int             dmd_pass;
  747 };
  748 
  749 #define EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, devclass,    \
  750     evh, arg, order, pass)                                              \
  751                                                                         \
  752 static struct driver_module_data name##_##busname##_driver_mod = {      \
  753         evh, arg,                                                       \
  754         #busname,                                                       \
  755         (kobj_class_t) &driver,                                         \
  756         &devclass,                                                      \
  757         pass                                                            \
  758 };                                                                      \
  759                                                                         \
  760 static moduledata_t name##_##busname##_mod = {                          \
  761         #busname "/" #name,                                             \
  762         driver_module_handler,                                          \
  763         &name##_##busname##_driver_mod                                  \
  764 };                                                                      \
  765 DECLARE_MODULE(name##_##busname, name##_##busname##_mod,                \
  766                SI_SUB_DRIVERS, order)
  767 
  768 #define EARLY_DRIVER_MODULE(name, busname, driver, devclass, evh, arg, pass) \
  769         EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, devclass,    \
  770             evh, arg, SI_ORDER_MIDDLE, pass)
  771 
  772 #define DRIVER_MODULE_ORDERED(name, busname, driver, devclass, evh, arg,\
  773     order)                                                              \
  774         EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, devclass,    \
  775             evh, arg, order, BUS_PASS_DEFAULT)
  776 
  777 #define DRIVER_MODULE(name, busname, driver, devclass, evh, arg)        \
  778         EARLY_DRIVER_MODULE(name, busname, driver, devclass, evh, arg,  \
  779             BUS_PASS_DEFAULT)
  780 
  781 /**
  782  * Generic ivar accessor generation macros for bus drivers
  783  */
  784 #define __BUS_ACCESSOR(varp, var, ivarp, ivar, type)                    \
  785                                                                         \
  786 static __inline type varp ## _get_ ## var(device_t dev)                 \
  787 {                                                                       \
  788         uintptr_t v;                                                    \
  789         BUS_READ_IVAR(device_get_parent(dev), dev,                      \
  790             ivarp ## _IVAR_ ## ivar, &v);                               \
  791         return ((type) v);                                              \
  792 }                                                                       \
  793                                                                         \
  794 static __inline void varp ## _set_ ## var(device_t dev, type t)         \
  795 {                                                                       \
  796         uintptr_t v = (uintptr_t) t;                                    \
  797         BUS_WRITE_IVAR(device_get_parent(dev), dev,                     \
  798             ivarp ## _IVAR_ ## ivar, v);                                \
  799 }
  800 
  801 /**
  802  * Shorthand macros, taking resource argument
  803  * Generated with sys/tools/bus_macro.sh
  804  */
  805 
  806 #define bus_barrier(r, o, l, f) \
  807         bus_space_barrier((r)->r_bustag, (r)->r_bushandle, (o), (l), (f))
  808 #define bus_read_1(r, o) \
  809         bus_space_read_1((r)->r_bustag, (r)->r_bushandle, (o))
  810 #define bus_read_multi_1(r, o, d, c) \
  811         bus_space_read_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  812 #define bus_read_region_1(r, o, d, c) \
  813         bus_space_read_region_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  814 #define bus_set_multi_1(r, o, v, c) \
  815         bus_space_set_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
  816 #define bus_set_region_1(r, o, v, c) \
  817         bus_space_set_region_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
  818 #define bus_write_1(r, o, v) \
  819         bus_space_write_1((r)->r_bustag, (r)->r_bushandle, (o), (v))
  820 #define bus_write_multi_1(r, o, d, c) \
  821         bus_space_write_multi_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  822 #define bus_write_region_1(r, o, d, c) \
  823         bus_space_write_region_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  824 #define bus_read_stream_1(r, o) \
  825         bus_space_read_stream_1((r)->r_bustag, (r)->r_bushandle, (o))
  826 #define bus_read_multi_stream_1(r, o, d, c) \
  827         bus_space_read_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  828 #define bus_read_region_stream_1(r, o, d, c) \
  829         bus_space_read_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  830 #define bus_set_multi_stream_1(r, o, v, c) \
  831         bus_space_set_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
  832 #define bus_set_region_stream_1(r, o, v, c) \
  833         bus_space_set_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
  834 #define bus_write_stream_1(r, o, v) \
  835         bus_space_write_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (v))
  836 #define bus_write_multi_stream_1(r, o, d, c) \
  837         bus_space_write_multi_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  838 #define bus_write_region_stream_1(r, o, d, c) \
  839         bus_space_write_region_stream_1((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  840 #define bus_read_2(r, o) \
  841         bus_space_read_2((r)->r_bustag, (r)->r_bushandle, (o))
  842 #define bus_read_multi_2(r, o, d, c) \
  843         bus_space_read_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  844 #define bus_read_region_2(r, o, d, c) \
  845         bus_space_read_region_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  846 #define bus_set_multi_2(r, o, v, c) \
  847         bus_space_set_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
  848 #define bus_set_region_2(r, o, v, c) \
  849         bus_space_set_region_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
  850 #define bus_write_2(r, o, v) \
  851         bus_space_write_2((r)->r_bustag, (r)->r_bushandle, (o), (v))
  852 #define bus_write_multi_2(r, o, d, c) \
  853         bus_space_write_multi_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  854 #define bus_write_region_2(r, o, d, c) \
  855         bus_space_write_region_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  856 #define bus_read_stream_2(r, o) \
  857         bus_space_read_stream_2((r)->r_bustag, (r)->r_bushandle, (o))
  858 #define bus_read_multi_stream_2(r, o, d, c) \
  859         bus_space_read_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  860 #define bus_read_region_stream_2(r, o, d, c) \
  861         bus_space_read_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  862 #define bus_set_multi_stream_2(r, o, v, c) \
  863         bus_space_set_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
  864 #define bus_set_region_stream_2(r, o, v, c) \
  865         bus_space_set_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
  866 #define bus_write_stream_2(r, o, v) \
  867         bus_space_write_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (v))
  868 #define bus_write_multi_stream_2(r, o, d, c) \
  869         bus_space_write_multi_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  870 #define bus_write_region_stream_2(r, o, d, c) \
  871         bus_space_write_region_stream_2((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  872 #define bus_read_4(r, o) \
  873         bus_space_read_4((r)->r_bustag, (r)->r_bushandle, (o))
  874 #define bus_read_multi_4(r, o, d, c) \
  875         bus_space_read_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  876 #define bus_read_region_4(r, o, d, c) \
  877         bus_space_read_region_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  878 #define bus_set_multi_4(r, o, v, c) \
  879         bus_space_set_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
  880 #define bus_set_region_4(r, o, v, c) \
  881         bus_space_set_region_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
  882 #define bus_write_4(r, o, v) \
  883         bus_space_write_4((r)->r_bustag, (r)->r_bushandle, (o), (v))
  884 #define bus_write_multi_4(r, o, d, c) \
  885         bus_space_write_multi_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  886 #define bus_write_region_4(r, o, d, c) \
  887         bus_space_write_region_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  888 #define bus_read_stream_4(r, o) \
  889         bus_space_read_stream_4((r)->r_bustag, (r)->r_bushandle, (o))
  890 #define bus_read_multi_stream_4(r, o, d, c) \
  891         bus_space_read_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  892 #define bus_read_region_stream_4(r, o, d, c) \
  893         bus_space_read_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  894 #define bus_set_multi_stream_4(r, o, v, c) \
  895         bus_space_set_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
  896 #define bus_set_region_stream_4(r, o, v, c) \
  897         bus_space_set_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
  898 #define bus_write_stream_4(r, o, v) \
  899         bus_space_write_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (v))
  900 #define bus_write_multi_stream_4(r, o, d, c) \
  901         bus_space_write_multi_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  902 #define bus_write_region_stream_4(r, o, d, c) \
  903         bus_space_write_region_stream_4((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  904 #define bus_read_8(r, o) \
  905         bus_space_read_8((r)->r_bustag, (r)->r_bushandle, (o))
  906 #define bus_read_multi_8(r, o, d, c) \
  907         bus_space_read_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  908 #define bus_read_region_8(r, o, d, c) \
  909         bus_space_read_region_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  910 #define bus_set_multi_8(r, o, v, c) \
  911         bus_space_set_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
  912 #define bus_set_region_8(r, o, v, c) \
  913         bus_space_set_region_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
  914 #define bus_write_8(r, o, v) \
  915         bus_space_write_8((r)->r_bustag, (r)->r_bushandle, (o), (v))
  916 #define bus_write_multi_8(r, o, d, c) \
  917         bus_space_write_multi_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  918 #define bus_write_region_8(r, o, d, c) \
  919         bus_space_write_region_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  920 #define bus_read_stream_8(r, o) \
  921         bus_space_read_stream_8((r)->r_bustag, (r)->r_bushandle, (o))
  922 #define bus_read_multi_stream_8(r, o, d, c) \
  923         bus_space_read_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  924 #define bus_read_region_stream_8(r, o, d, c) \
  925         bus_space_read_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  926 #define bus_set_multi_stream_8(r, o, v, c) \
  927         bus_space_set_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
  928 #define bus_set_region_stream_8(r, o, v, c) \
  929         bus_space_set_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v), (c))
  930 #define bus_write_stream_8(r, o, v) \
  931         bus_space_write_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (v))
  932 #define bus_write_multi_stream_8(r, o, d, c) \
  933         bus_space_write_multi_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  934 #define bus_write_region_stream_8(r, o, d, c) \
  935         bus_space_write_region_stream_8((r)->r_bustag, (r)->r_bushandle, (o), (d), (c))
  936 #endif /* _KERNEL */
  937 
  938 #endif /* !_SYS_BUS_H_ */

Cache object: 98902622837cdf27afcdc6d78a2bd674


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.