Comtrol eCos - Manual (Page 393)

Chapter 18. Device Driver Interface to the Kernel
Description:
Disables delivery of interrupts, preventing all ISRs running. This function maintains a counter of the number
of times it is called.
cyg_drv_isr_unlock
Function:
void cyg_drv_isr_unlock()
Arguments:
None
Result:
None
Level:
ISR
Description:
Re-enables delivery of interrupts, allowing ISRs to run. This function decrements the counter maintained by
cyg_drv_isr_lock() , and only re-allows interrupts when it goes to zero.
cyg_drv_spinlock_init
Function:
void cyg_drv_spinlock_init(cyg_spinlock_t *lock, cyg_bool_t locked )
Arguments:
lock - pointer to spinlock to initialize
locked - initial state of lock
Result:
None
Level:
Thread
Description:
Initialize a spinlock. The locked argument indicates how the spinlock should be initialized: TRUE for locked
or FALSE for unlocked state.
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