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#include <sys/types.h> #include <sys/conf.h> #include <sys/ddi.h> #include <sys/sunddi.h> int ddi_intr_get_cap(ddi_intr_handle_t h, int *flagsp);
int ddi_intr_set_cap(ddi_intr_handle_t h, int flags);
Solaris DDI specific (Solaris DDI).
ddi_intr_get_cap() h
DDI interrupt handle
Pointer to the capability flags returned for this handle
ddi_intr_set_cap() h
DDI interrupt handle
Contains the capability flag to be set
The ddi_intr_get_cap() function returns the interrupt capability flags for the interrupt handle h. Upon a successful return, the flags are returned in the integer pointed to by the flagsp argument.
These flags are typically combinations of the following: DDI_INTR_FLAG_EDGE
For discrete interrupts, the host supports edge type of trigger. This flag is not returned for DDI_INTR_TYPE_MSI or DDI_INTR_TYPE_MSIX interrupt types. This is a read-write (RW) flag.
For discrete interrupts the host supports level, edge, or both types of triggers. This flag is not returned for DDI_INTR_TYPE_MSI or DDI_INTR_TYPE_MSIX interrupt types.
The interrupt can be masked either by the device or by the host bridge, or optionally by the host. This is a read-only (RO) flag.
The interrupt supports an interrupt pending bit. This is a read-only (RO) flag.
All interrupts of the given type must be block-enabled and are not individually maskable. This is a read-only (RO) flag.
The ddi_intr_set_cap() function allows a driver to specify the capability flags for the interrupt handle h. Only DDI_INTR_FLAG_LEVEL and DDI_INTR_FLAG_EDGE flags can be set. Some devices can support both level and edge capability and either can be set by using the ddi_intr_set_cap() function. Setting the capability flags is device and platform dependent.
The ddi_intr_set_cap() function can be called after interrupts are allocated and prior to adding the interrupt handler. For all other times it returns failure.
The ddi_intr_get_cap() and ddi_intr_set_cap() functions return: DDI_SUCCESS
On success.
On encountering invalid input parameters.
On any implementation specific failure.
On device not supporting operation.
The ddi_intr_get_cap() and ddi_intr_set_cap() functions can be called from either user or kernel non-interrupt context.
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE TYPE ATTRIBUTE VALUE |
| Interface Stability Committed |
attributes(5), ddi_intr_alloc(9F), ddi_intr_block_enable(9F), ddi_intr_get_nintrs(9F), ddi_intr_get_pending(9F), ddi_intr_get_supported_types(9F), ddi_intr_set_mask(9F)
Writing Device Drivers
Consumers of these interfaces should verify that the return value is not equal to DDI_SUCCESS. Incomplete checking for failure codes could result in inconsistent behavior among platforms.