Comtrol eCos - Manual (Page 410)

Chapter 18. Device Driver Interface to the Kernel
cyg_ISR_t
Type:
typedef cyg_uint32 cyg_ISR_t( cyg_vector_t vector,
cyg_addrword_t data
)
Fields:
vector - vector being delivered
data - data value supplied by client
Result:
Bit mask indicating whether interrupt was handled and whether the DSR should be called.
Description:
Interrupt Service Routine definition. A pointer to a function with this prototype is passed to
cyg_interrupt_create() when an interrupt object is created. When an interrupt is delivered the function
will be called with the vector number and the data value that was passed to cyg_interrupt_create() .
The return value is a bit mask containing one or both of the following bits:
CYG_ISR_HANDLED
indicates that the interrupt was handled by this ISR. It is a configuration option whether this will prevent
further ISR being run.
CYG_ISR_CALL_DSR
causes the DSR that was passed to cyg_interrupt_create() to be scheduled to be called.
cyg_DSR_t
Type:
typedef void cyg_DSR_t( cyg_vector_t vector,
cyg_ucount32 count,
cyg_addrword_t data
)
Fields:
vector - vector being delivered
count - number of times DSR has been scheduled
data - data value supplied by client
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