diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/rtdef.h | 1 | ||||
| -rw-r--r-- | include/rthw.h | 6 | ||||
| -rw-r--r-- | include/rtthread.h | 21 |
3 files changed, 28 insertions, 0 deletions
diff --git a/include/rtdef.h b/include/rtdef.h index b25a6a87d5..3dc8a2a2a9 100644 --- a/include/rtdef.h +++ b/include/rtdef.h @@ -577,6 +577,7 @@ struct rt_thread rt_uint16_t scheduler_lock_nest; /**< scheduler lock count */ rt_uint16_t cpus_lock_nest; /**< cpus lock count */ + rt_uint16_t critical_lock_nest; /**< critical lock count */ #endif /*RT_USING_SMP*/ /* priority */ diff --git a/include/rthw.h b/include/rthw.h index ef3dc087ad..2a602dcfe7 100644 --- a/include/rthw.h +++ b/include/rthw.h @@ -143,6 +143,12 @@ typedef union { } tickets; } rt_hw_spinlock_t; +struct rt_spinlock +{ + rt_hw_spinlock_t lock; +}; + +void rt_hw_spin_lock_init(rt_hw_spinlock_t *lock); void rt_hw_spin_lock(rt_hw_spinlock_t *lock); void rt_hw_spin_unlock(rt_hw_spinlock_t *lock); diff --git a/include/rtthread.h b/include/rtthread.h index d703f36268..13a1a4424b 100644 --- a/include/rtthread.h +++ b/include/rtthread.h @@ -391,6 +391,27 @@ rt_err_t rt_mq_recv(rt_mq_t mq, rt_err_t rt_mq_control(rt_mq_t mq, int cmd, void *arg); #endif +/* + * spinlock + */ +#ifdef RT_USING_SMP +struct rt_spinlock; + +void rt_spin_lock_init(struct rt_spinlock *lock); +void rt_spin_lock(struct rt_spinlock *lock); +void rt_spin_unlock(struct rt_spinlock *lock); +rt_base_t rt_spin_lock_irqsave(struct rt_spinlock *lock); +void rt_spin_unlock_irqrestore(struct rt_spinlock *lock, rt_base_t level); + +#else +#define rt_spin_lock_init(lock) /* nothing */ +#define rt_spin_lock(lock) rt_enter_critical() +#define rt_spin_unlock(lock) rt_exit_critical() +#define rt_spin_lock_irqsave(lock) rt_hw_interrupt_disable() +#define rt_spin_unlock_irqrestore(lock, level) rt_hw_interrupt_enable(level) + +#endif + /**@}*/ #ifdef RT_USING_DEVICE |