00001
00025 #ifndef _RTDM_DRIVER_H
00026 #define _RTDM_DRIVER_H
00027
00028 #ifndef __KERNEL__
00029 #error This header is for kernel space usage only. \
00030 You are likely looking for rtdm/rtdm.h...
00031 #endif
00032
00033 #include <asm/atomic.h>
00034 #include <linux/list.h>
00035
00036 #include <nucleus/xenomai.h>
00037 #include <nucleus/core.h>
00038 #include <nucleus/heap.h>
00039 #include <nucleus/pod.h>
00040 #include <nucleus/synch.h>
00041 #include <rtdm/rtdm.h>
00042
00043
00044 #include <nucleus/assert.h>
00045
00046 #ifndef CONFIG_XENO_OPT_DEBUG_RTDM
00047 #define CONFIG_XENO_OPT_DEBUG_RTDM 0
00048 #endif
00049
00050 struct rtdm_dev_context;
00051
00064 #define RTDM_EXCLUSIVE 0x0001
00065
00067 #define RTDM_NAMED_DEVICE 0x0010
00068
00071 #define RTDM_PROTOCOL_DEVICE 0x0020
00072
00074 #define RTDM_DEVICE_TYPE_MASK 0x00F0
00075
00084 #define RTDM_CREATED_IN_NRT 0
00085
00087 #define RTDM_CLOSING 1
00088
00090 #define RTDM_USER_CONTEXT_FLAG 8
00091
00100 #define RTDM_DEVICE_STRUCT_VER 4
00101
00103 #define RTDM_CONTEXT_STRUCT_VER 3
00104
00106 #define RTDM_SECURE_DEVICE 0x80000000
00107
00109 #define RTDM_DRIVER_VER(major, minor, patch) \
00110 (((major & 0xFF) << 16) | ((minor & 0xFF) << 8) | (patch & 0xFF))
00111
00113 #define RTDM_DRIVER_MAJOR_VER(ver) (((ver) >> 16) & 0xFF)
00114
00116 #define RTDM_DRIVER_MINOR_VER(ver) (((ver) >> 8) & 0xFF)
00117
00119 #define RTDM_DRIVER_PATCH_VER(ver) ((ver) & 0xFF)
00120
00139 typedef int (*rtdm_open_handler_t)(struct rtdm_dev_context *context,
00140 rtdm_user_info_t *user_info, int oflag);
00141
00154 typedef int (*rtdm_socket_handler_t)(struct rtdm_dev_context *context,
00155 rtdm_user_info_t *user_info, int protocol);
00156
00168 typedef int (*rtdm_close_handler_t)(struct rtdm_dev_context *context,
00169 rtdm_user_info_t *user_info);
00170
00184 typedef int (*rtdm_ioctl_handler_t)(struct rtdm_dev_context *context,
00185 rtdm_user_info_t *user_info,
00186 unsigned int request, void __user *arg);
00187
00201 typedef ssize_t (*rtdm_read_handler_t)(struct rtdm_dev_context *context,
00202 rtdm_user_info_t *user_info,
00203 void *buf, size_t nbyte);
00204
00219 typedef ssize_t (*rtdm_write_handler_t)(struct rtdm_dev_context *context,
00220 rtdm_user_info_t *user_info,
00221 const void *buf, size_t nbyte);
00222
00238 typedef ssize_t (*rtdm_recvmsg_handler_t)(struct rtdm_dev_context *context,
00239 rtdm_user_info_t *user_info,
00240 struct msghdr *msg, int flags);
00241
00257 typedef ssize_t (*rtdm_sendmsg_handler_t)(struct rtdm_dev_context *context,
00258 rtdm_user_info_t *user_info,
00259 const struct msghdr *msg, int flags);
00262 typedef int (*rtdm_rt_handler_t)(struct rtdm_dev_context *context,
00263 rtdm_user_info_t *user_info, void *arg);
00264
00268 struct rtdm_operations {
00272 rtdm_close_handler_t close_rt;
00274 rtdm_close_handler_t close_nrt;
00275
00277 rtdm_ioctl_handler_t ioctl_rt;
00279 rtdm_ioctl_handler_t ioctl_nrt;
00285 rtdm_read_handler_t read_rt;
00287 rtdm_read_handler_t read_nrt;
00288
00290 rtdm_write_handler_t write_rt;
00292 rtdm_write_handler_t write_nrt;
00298 rtdm_recvmsg_handler_t recvmsg_rt;
00300 rtdm_recvmsg_handler_t recvmsg_nrt;
00301
00303 rtdm_sendmsg_handler_t sendmsg_rt;
00305 rtdm_sendmsg_handler_t sendmsg_nrt;
00307 };
00308
00309 struct rtdm_devctx_reserved {
00310 void *owner;
00311 };
00312
00324 struct rtdm_dev_context {
00326 unsigned long context_flags;
00327
00329 int fd;
00330
00333 atomic_t close_lock_count;
00334
00336 struct rtdm_operations *ops;
00337
00339 struct rtdm_device *device;
00340
00342 struct rtdm_devctx_reserved reserved;
00343
00345 char dev_private[0];
00346 };
00347
00348 struct rtdm_dev_reserved {
00349 struct list_head entry;
00350 atomic_t refcount;
00351 struct rtdm_dev_context *exclusive_context;
00352 };
00353
00361 struct rtdm_device {
00364 int struct_version;
00365
00367 int device_flags;
00369 size_t context_size;
00370
00372 char device_name[RTDM_MAX_DEVNAME_LEN + 1];
00373
00375 int protocol_family;
00377 int socket_type;
00378
00381 rtdm_open_handler_t open_rt;
00384 rtdm_open_handler_t open_nrt;
00385
00388 rtdm_socket_handler_t socket_rt;
00391 rtdm_socket_handler_t socket_nrt;
00392
00394 struct rtdm_operations ops;
00395
00397 int device_class;
00400 int device_sub_class;
00402 int profile_version;
00404 const char *driver_name;
00406 int driver_version;
00409 const char *peripheral_name;
00411 const char *provider_name;
00412
00414 const char *proc_name;
00416 struct proc_dir_entry *proc_entry;
00417
00419 int device_id;
00421 void *device_data;
00422
00424 struct rtdm_dev_reserved reserved;
00425 };
00428
00429
00430 int rtdm_dev_register(struct rtdm_device *device);
00431 int rtdm_dev_unregister(struct rtdm_device *device, unsigned int poll_delay);
00432
00433
00434
00435 #define rtdm_open rt_dev_open
00436 #define rtdm_socket rt_dev_socket
00437 #define rtdm_close rt_dev_close
00438 #define rtdm_ioctl rt_dev_ioctl
00439 #define rtdm_read rt_dev_read
00440 #define rtdm_write rt_dev_write
00441 #define rtdm_recvmsg rt_dev_recvmsg
00442 #define rtdm_recv rt_dev_recv
00443 #define rtdm_recvfrom rt_dev_recvfrom
00444 #define rtdm_sendmsg rt_dev_sendmsg
00445 #define rtdm_send rt_dev_send
00446 #define rtdm_sendto rt_dev_sendto
00447 #define rtdm_bind rt_dev_bind
00448 #define rtdm_listen rt_dev_listen
00449 #define rtdm_accept rt_dev_accept
00450 #define rtdm_getsockopt rt_dev_getsockopt
00451 #define rtdm_setsockopt rt_dev_setsockopt
00452 #define rtdm_getsockname rt_dev_getsockname
00453 #define rtdm_getpeername rt_dev_getpeername
00454 #define rtdm_shutdown rt_dev_shutdown
00455
00456 struct rtdm_dev_context *rtdm_context_get(int fd);
00457
00458 #ifndef DOXYGEN_CPP
00459 static inline void rtdm_context_lock(struct rtdm_dev_context *context)
00460 {
00461 atomic_inc(&context->close_lock_count);
00462 }
00463
00464 static inline void rtdm_context_unlock(struct rtdm_dev_context *context)
00465 {
00466 atomic_dec(&context->close_lock_count);
00467 }
00468
00469
00470 struct xntbase;
00471 extern struct xntbase *rtdm_tbase;
00472
00473 static inline nanosecs_abs_t rtdm_clock_read(void)
00474 {
00475 return xntbase_ticks2ns(rtdm_tbase, xntbase_get_time(rtdm_tbase));
00476 }
00477
00478 static inline nanosecs_abs_t rtdm_clock_read_monotonic(void)
00479 {
00480 return xntbase_ticks2ns(rtdm_tbase, xntbase_get_jiffies(rtdm_tbase));
00481 }
00482 #endif
00483
00484
00527 #ifdef DOXYGEN_CPP
00528 #define RTDM_EXECUTE_ATOMICALLY(code_block) \
00529 { \
00530 <ENTER_ATOMIC_SECTION> \
00531 code_block; \
00532 <LEAVE_ATOMIC_SECTION> \
00533 }
00534 #else
00535 #define RTDM_EXECUTE_ATOMICALLY(code_block) \
00536 { \
00537 spl_t s; \
00538 \
00539 xnlock_get_irqsave(&nklock, s); \
00540 code_block; \
00541 xnlock_put_irqrestore(&nklock, s); \
00542 }
00543 #endif
00544
00554 #define RTDM_LOCK_UNLOCKED RTHAL_SPIN_LOCK_UNLOCKED
00555
00557 typedef rthal_spinlock_t rtdm_lock_t;
00558
00560 typedef unsigned long rtdm_lockctx_t;
00561
00577 #define rtdm_lock_init(lock) rthal_spin_lock_init(lock)
00578
00595 #define rtdm_lock_get(lock) rthal_spin_lock(lock)
00596
00613 #define rtdm_lock_put(lock) rthal_spin_unlock(lock)
00614
00632 #define rtdm_lock_get_irqsave(lock, context) \
00633 rthal_spin_lock_irqsave(lock, context)
00634
00652 #define rtdm_lock_put_irqrestore(lock, context) \
00653 rthal_spin_unlock_irqrestore(lock, context)
00654
00671 #define rtdm_lock_irqsave(context) \
00672 rthal_local_irq_save(context)
00673
00690 #define rtdm_lock_irqrestore(context) \
00691 rthal_local_irq_restore(context)
00692
00696
00702 typedef xnintr_t rtdm_irq_t;
00703
00710 #define RTDM_IRQTYPE_SHARED XN_ISR_SHARED
00711
00713 #define RTDM_IRQTYPE_EDGE XN_ISR_EDGE
00714
00723 typedef int (*rtdm_irq_handler_t)(rtdm_irq_t *irq_handle);
00724
00731 #define RTDM_IRQ_NONE XN_ISR_NONE
00732
00733 #define RTDM_IRQ_HANDLED XN_ISR_HANDLED
00734
00753 #define rtdm_irq_get_arg(irq_handle, type) ((type *)irq_handle->cookie)
00754
00756 int rtdm_irq_request(rtdm_irq_t *irq_handle, unsigned int irq_no,
00757 rtdm_irq_handler_t handler, unsigned long flags,
00758 const char *device_name, void *arg);
00759
00760 #ifndef DOXYGEN_CPP
00761 static inline int rtdm_irq_free(rtdm_irq_t *irq_handle)
00762 {
00763 return xnintr_detach(irq_handle);
00764 }
00765
00766 static inline int rtdm_irq_enable(rtdm_irq_t *irq_handle)
00767 {
00768 return xnintr_enable(irq_handle);
00769 }
00770
00771 static inline int rtdm_irq_disable(rtdm_irq_t *irq_handle)
00772 {
00773 return xnintr_disable(irq_handle);
00774 }
00775 #endif
00776
00777
00778
00784 typedef unsigned rtdm_nrtsig_t;
00785
00796 typedef void (*rtdm_nrtsig_handler_t)(rtdm_nrtsig_t nrt_sig, void *arg);
00799 #ifndef DOXYGEN_CPP
00800 static inline int rtdm_nrtsig_init(rtdm_nrtsig_t *nrt_sig,
00801 rtdm_nrtsig_handler_t handler, void *arg)
00802 {
00803 *nrt_sig = rthal_alloc_virq();
00804
00805 if (*nrt_sig == 0)
00806 return -EAGAIN;
00807
00808 rthal_virtualize_irq(rthal_root_domain, *nrt_sig, handler, arg, NULL,
00809 IPIPE_HANDLE_MASK);
00810 return 0;
00811 }
00812
00813 static inline void rtdm_nrtsig_destroy(rtdm_nrtsig_t *nrt_sig)
00814 {
00815 rthal_free_virq(*nrt_sig);
00816 }
00817
00818 static inline void rtdm_nrtsig_pend(rtdm_nrtsig_t *nrt_sig)
00819 {
00820 rthal_trigger_irq(*nrt_sig);
00821 }
00822 #endif
00823
00824
00825
00831 typedef xntimer_t rtdm_timer_t;
00832
00838 typedef void (*rtdm_timer_handler_t)(rtdm_timer_t *timer);
00839
00845 enum rtdm_timer_mode {
00847 RTDM_TIMERMODE_RELATIVE = XN_RELATIVE,
00848
00850 RTDM_TIMERMODE_ABSOLUTE = XN_ABSOLUTE,
00851
00853 RTDM_TIMERMODE_REALTIME = XN_REALTIME
00854 };
00859 #ifndef DOXYGEN_CPP
00860 #define rtdm_timer_init(timer, handler, name) \
00861 ({ \
00862 xntimer_init((timer), rtdm_tbase, handler); \
00863 xntimer_set_name((timer), (name)); \
00864 0; \
00865 })
00866 #endif
00867
00868 void rtdm_timer_destroy(rtdm_timer_t *timer);
00869
00870 int rtdm_timer_start(rtdm_timer_t *timer, nanosecs_abs_t expiry,
00871 nanosecs_rel_t interval, enum rtdm_timer_mode mode);
00872
00873 void rtdm_timer_stop(rtdm_timer_t *timer);
00874
00875 #ifndef DOXYGEN_CPP
00876 static inline int rtdm_timer_start_in_handler(rtdm_timer_t *timer,
00877 nanosecs_abs_t expiry,
00878 nanosecs_rel_t interval,
00879 enum rtdm_timer_mode mode)
00880 {
00881 return xntimer_start(timer, xntbase_ns2ticks_ceil(rtdm_tbase, expiry),
00882 xntbase_ns2ticks_ceil(rtdm_tbase, interval),
00883 (xntmode_t)mode);
00884 }
00885
00886 static inline void rtdm_timer_stop_in_handler(rtdm_timer_t *timer)
00887 {
00888 xntimer_stop(timer);
00889 }
00890 #endif
00891
00892
00898 typedef xnthread_t rtdm_task_t;
00899
00905 typedef void (*rtdm_task_proc_t)(void *arg);
00906
00911 #define RTDM_TASK_LOWEST_PRIORITY XNCORE_LOW_PRIO
00912 #define RTDM_TASK_HIGHEST_PRIORITY XNCORE_HIGH_PRIO
00913
00919 #define RTDM_TASK_RAISE_PRIORITY (+1)
00920 #define RTDM_TASK_LOWER_PRIORITY (-1)
00921
00925 int rtdm_task_init(rtdm_task_t *task, const char *name,
00926 rtdm_task_proc_t task_proc, void *arg,
00927 int priority, nanosecs_rel_t period);
00928 int __rtdm_task_sleep(xnticks_t timeout, xntmode_t mode);
00929 void rtdm_task_busy_sleep(nanosecs_rel_t delay);
00930
00931 #ifndef DOXYGEN_CPP
00932 static inline void rtdm_task_destroy(rtdm_task_t *task)
00933 {
00934 xnpod_delete_thread(task);
00935 }
00936
00937 void rtdm_task_join_nrt(rtdm_task_t *task, unsigned int poll_delay);
00938
00939 static inline void rtdm_task_set_priority(rtdm_task_t *task, int priority)
00940 {
00941 xnpod_renice_thread(task, priority);
00942 xnpod_schedule();
00943 }
00944
00945 static inline int rtdm_task_set_period(rtdm_task_t *task,
00946 nanosecs_rel_t period)
00947 {
00948 if (period < 0)
00949 period = 0;
00950 return xnpod_set_thread_periodic(task, XN_INFINITE,
00951 xntbase_ns2ticks_ceil
00952 (xnthread_time_base(task), period));
00953 }
00954
00955 static inline int rtdm_task_unblock(rtdm_task_t *task)
00956 {
00957 int res = xnpod_unblock_thread(task);
00958
00959 xnpod_schedule();
00960 return res;
00961 }
00962
00963 static inline rtdm_task_t *rtdm_task_current(void)
00964 {
00965 return xnpod_current_thread();
00966 }
00967
00968 static inline int rtdm_task_wait_period(void)
00969 {
00970 XENO_ASSERT(RTDM, !xnpod_unblockable_p(), return -EPERM;);
00971 return xnpod_wait_thread_period(NULL);
00972 }
00973
00974 static inline int rtdm_task_sleep(nanosecs_rel_t delay)
00975 {
00976 return __rtdm_task_sleep(delay, XN_RELATIVE);
00977 }
00978
00979 static inline int
00980 rtdm_task_sleep_abs(nanosecs_abs_t wakeup_date, enum rtdm_timer_mode mode)
00981 {
00982
00983 if (mode != RTDM_TIMERMODE_ABSOLUTE && mode != RTDM_TIMERMODE_REALTIME)
00984 return -EINVAL;
00985 return __rtdm_task_sleep(wakeup_date, (xntmode_t)mode);
00986 }
00987
00988
00989 static inline int __deprecated rtdm_task_sleep_until(nanosecs_abs_t wakeup_time)
00990 {
00991 return __rtdm_task_sleep(wakeup_time, XN_REALTIME);
00992 }
00993 #endif
00994
00995
00996
00997 typedef nanosecs_abs_t rtdm_toseq_t;
00998
00999 void rtdm_toseq_init(rtdm_toseq_t *timeout_seq, nanosecs_rel_t timeout);
01000
01001
01002
01003 typedef struct {
01004 xnsynch_t synch_base;
01005 } rtdm_event_t;
01006
01007 #define RTDM_EVENT_PENDING XNSYNCH_SPARE1
01008
01009 void rtdm_event_init(rtdm_event_t *event, unsigned long pending);
01010 int rtdm_event_wait(rtdm_event_t *event);
01011 int rtdm_event_timedwait(rtdm_event_t *event, nanosecs_rel_t timeout,
01012 rtdm_toseq_t *timeout_seq);
01013 void rtdm_event_signal(rtdm_event_t *event);
01014
01015 void rtdm_event_clear(rtdm_event_t *event);
01016
01017 #ifndef DOXYGEN_CPP
01018 void __rtdm_synch_flush(xnsynch_t *synch, unsigned long reason);
01019
01020 static inline void rtdm_event_pulse(rtdm_event_t *event)
01021 {
01022 trace_mark(xn_rtdm_event_pulse, "event %p", event);
01023 __rtdm_synch_flush(&event->synch_base, 0);
01024 }
01025
01026 static inline void rtdm_event_destroy(rtdm_event_t *event)
01027 {
01028 trace_mark(xn_rtdm_event_destroy, "event %p", event);
01029 __rtdm_synch_flush(&event->synch_base, XNRMID);
01030 }
01031 #endif
01032
01033
01034
01035 typedef struct {
01036 unsigned long value;
01037 xnsynch_t synch_base;
01038 } rtdm_sem_t;
01039
01040 void rtdm_sem_init(rtdm_sem_t *sem, unsigned long value);
01041 int rtdm_sem_down(rtdm_sem_t *sem);
01042 int rtdm_sem_timeddown(rtdm_sem_t *sem, nanosecs_rel_t timeout,
01043 rtdm_toseq_t *timeout_seq);
01044 void rtdm_sem_up(rtdm_sem_t *sem);
01045
01046 #ifndef DOXYGEN_CPP
01047 static inline void rtdm_sem_destroy(rtdm_sem_t *sem)
01048 {
01049 trace_mark(xn_rtdm_sem_destroy, "sem %p", sem);
01050 __rtdm_synch_flush(&sem->synch_base, XNRMID);
01051 }
01052 #endif
01053
01054
01055
01056 typedef struct {
01057 xnsynch_t synch_base;
01058 } rtdm_mutex_t;
01059
01060 void rtdm_mutex_init(rtdm_mutex_t *mutex);
01061 int rtdm_mutex_lock(rtdm_mutex_t *mutex);
01062 int rtdm_mutex_timedlock(rtdm_mutex_t *mutex, nanosecs_rel_t timeout,
01063 rtdm_toseq_t *timeout_seq);
01064
01065 #ifndef DOXYGEN_CPP
01066 static inline void rtdm_mutex_unlock(rtdm_mutex_t *mutex)
01067 {
01068 XENO_ASSERT(RTDM, !xnpod_asynch_p(), return;);
01069
01070 trace_mark(xn_rtdm_mutex_unlock, "mutex %p", mutex);
01071
01072 if (unlikely(xnsynch_wakeup_one_sleeper(&mutex->synch_base) != NULL))
01073 xnpod_schedule();
01074 }
01075
01076 static inline void rtdm_mutex_destroy(rtdm_mutex_t *mutex)
01077 {
01078 trace_mark(xn_rtdm_mutex_destroy, "mutex %p", mutex);
01079
01080 __rtdm_synch_flush(&mutex->synch_base, XNRMID);
01081 }
01082 #endif
01083
01084
01085
01086 #define rtdm_printk(format, ...) printk(format, ##__VA_ARGS__)
01087
01088 #ifndef DOXYGEN_CPP
01089 static inline void *rtdm_malloc(size_t size)
01090 {
01091 return xnmalloc(size);
01092 }
01093
01094 static inline void rtdm_free(void *ptr)
01095 {
01096 xnfree(ptr);
01097 }
01098
01099 #ifdef CONFIG_XENO_OPT_PERVASIVE
01100 int rtdm_mmap_to_user(rtdm_user_info_t *user_info,
01101 void *src_addr, size_t len,
01102 int prot, void **pptr,
01103 struct vm_operations_struct *vm_ops,
01104 void *vm_private_data);
01105 int rtdm_iomap_to_user(rtdm_user_info_t *user_info,
01106 unsigned long src_addr, size_t len,
01107 int prot, void **pptr,
01108 struct vm_operations_struct *vm_ops,
01109 void *vm_private_data);
01110 int rtdm_munmap(rtdm_user_info_t *user_info, void *ptr, size_t len);
01111
01112 static inline int rtdm_read_user_ok(rtdm_user_info_t *user_info,
01113 const void __user *ptr, size_t size)
01114 {
01115 return __xn_access_ok(user_info, VERIFY_READ, ptr, size);
01116 }
01117
01118 static inline int rtdm_rw_user_ok(rtdm_user_info_t *user_info,
01119 const void __user *ptr, size_t size)
01120 {
01121 return __xn_access_ok(user_info, VERIFY_WRITE, ptr, size);
01122 }
01123
01124 static inline int rtdm_copy_from_user(rtdm_user_info_t *user_info,
01125 void *dst, const void __user *src,
01126 size_t size)
01127 {
01128 return __xn_copy_from_user(user_info, dst, src, size) ? -EFAULT : 0;
01129 }
01130
01131 static inline int rtdm_safe_copy_from_user(rtdm_user_info_t *user_info,
01132 void *dst, const void __user *src,
01133 size_t size)
01134 {
01135 return (!__xn_access_ok(user_info, VERIFY_READ, src, size) ||
01136 __xn_copy_from_user(user_info, dst, src, size)) ? -EFAULT : 0;
01137 }
01138
01139 static inline int rtdm_copy_to_user(rtdm_user_info_t *user_info,
01140 void __user *dst, const void *src,
01141 size_t size)
01142 {
01143 return __xn_copy_to_user(user_info, dst, src, size) ? -EFAULT : 0;
01144 }
01145
01146 static inline int rtdm_safe_copy_to_user(rtdm_user_info_t *user_info,
01147 void __user *dst, const void *src,
01148 size_t size)
01149 {
01150 return (!__xn_access_ok(user_info, VERIFY_WRITE, dst, size) ||
01151 __xn_copy_to_user(user_info, dst, src, size)) ? -EFAULT : 0;
01152 }
01153
01154 static inline int rtdm_strncpy_from_user(rtdm_user_info_t *user_info,
01155 char *dst,
01156 const char __user *src, size_t count)
01157 {
01158 if (unlikely(!__xn_access_ok(user_info, VERIFY_READ, src, 1)))
01159 return -EFAULT;
01160 return __xn_strncpy_from_user(user_info, dst, src, count);
01161 }
01162 #else
01163
01164 #define rtdm_mmap_to_user(...) ({ -ENOSYS; })
01165 #define rtdm_munmap(...) ({ -ENOSYS; })
01166 #define rtdm_read_user_ok(...) ({ 0; })
01167 #define rtdm_rw_user_ok(...) ({ 0; })
01168 #define rtdm_copy_from_user(...) ({ -ENOSYS; })
01169 #define rtdm_safe_copy_from_user(...) ({ -ENOSYS; })
01170 #define rtdm_copy_to_user(...) ({ -ENOSYS; })
01171 #define rtdm_safe_copy_to_user(...) ({ -ENOSYS; })
01172 #define rtdm_strncpy_from_user(...) ({ -ENOSYS; })
01173 #endif
01174
01175 static inline int rtdm_in_rt_context(void)
01176 {
01177 return (rthal_current_domain != rthal_root_domain);
01178 }
01179 #endif
01180
01181 int rtdm_exec_in_rt(struct rtdm_dev_context *context,
01182 rtdm_user_info_t *user_info, void *arg,
01183 rtdm_rt_handler_t handler);
01184
01185 #endif