PM5358 S/UNI-4x622 Driver Manual
Application Programming Interface
Proprietary and Confidential to PMC-Sierra, Inc. 81
Document ID: PMC-2010419, Issue 1

Configuring ISR Processing: suni4x622ISRConfig

Allows the USER to configure how ISR processing is to be handled: polling
(SUNI4x622_POLL_MODE) or interrupt driven (SUNI4x622_ISR_MODE). If polling is selected,
the USER is responsible for calling periodically suni4x622Poll to collect exception data from
the device.
Prototype INT4 suni4x622ISRConfig(sSUNI4x622_HNDL deviceHandle,
eSUNI4x622_ISR_MODE mode)
Inputs deviceHandle : device handle (from suni4x622Add)
mode : mode of operation
Outputs None
Returns Success = SUNI4x622_SUCCESS
Failure = SUNI4x622_ERR_INVALID_DEVICE_STATE
SUNI4x622_ERR_INVALID_DEV
SUNI4x622_ERR_INVALID_ARG
Valid States SUNI4x622_ACTIVE, SUNI4x622_INACTIVE
Side Effects None

Getting Device Interrupt Enable Mask: suni4x622GetMask

This function returns the contents of the interrupt mask registers of the S/UNI-4x622 device.
Prototype INT4 suni4x622GetMask(sSUNI4x622_HNDL deviceHandle,
sSUNI4x622_MASK_ISR *pmask)
Inputs deviceHandle : device handle (from suni4x622Add)
pmask : (pointer to) mask structure
Outputs pmask : (pointer to) updated mask structure
Returns Success = SUNI4x622_SUCCESS
Failure = SUNI4x622_ERR_INVALID_DEVICE_STATE
SUNI4x622_ERR_INVALID_DEV
SUNI4x622_ERR_INVALID_ARG
Valid States SUNI4x622_ACTIVE, SUNI4x622_INACTIVE
Side Effects None

Setting Device Interrupt Enable Mask: suni4x622SetMask

This function sets the contents of the interrupt mask registers of the S/UNI-4x622 device. Any
bits that are set in the passed structure are set in the associated S/UNI-4x622 registers.