//*****************************************************************************
//
//! Registers an interrupt handler for the synchronous serial interface.
//!
//! \param ulBase specifies the SSI module base address.
//! \param pfnHandler is a pointer to the function to be called when the
//! synchronous serial interface interrupt occurs.
//!
//! This function registers the handler to be called when an SSI interrupt
//! occurs. This function enables the global interrupt in the interrupt
//! controller; specific SSI interrupts must be enabled via SSIIntEnable(). If
//! necessary, it is the interrupt handler's responsibility to clear the
//! interrupt source via SSIIntClear().
//!
//! \sa IntRegister() for important information about registering interrupt
//! handlers.
//!
//! \return None.
//
//*****************************************************************************
void
SSIIntRegister(unsigned long ulBase, void (*pfnHandler)(void))
{
unsigned long ulInt;
//
// Check the arguments.
//
ASSERT(SSIBaseValid(ulBase));
//
// Determine the interrupt number based on the SSI port.
//
ulInt = SSIIntNumberGet(ulBase);
//
// Register the interrupt handler, returning an error if an error occurs.
//
IntRegister(ulInt, pfnHandler);
//
// Enable the synchronous serial interface interrupt.
//
IntEnable(ulInt);
}
//*****************************************************************************
//
//! Unregisters an interrupt handler for the synchronous serial interface.
//!
//! \param ulBase specifies the SSI module base address.
//!
//! This function clears the handler to be called when an SSI interrupt
//! occurs. This function also masks off the interrupt in the interrupt
//! controller so that the interrupt handler no longer is called.
//!
//! \sa IntRegister() for important information about registering interrupt
//! handlers.
//!
//! \return None.
//
//*****************************************************************************
void
SSIIntUnregister(unsigned long ulBase)
{
unsigned long ulInt;
//
// Check the arguments.
//
ASSERT(SSIBaseValid(ulBase));
//
// Determine the interrupt number based on the SSI port.
//
ulInt = SSIIntNumberGet(ulBase);
//
// Disable the interrupt.
//
IntDisable(ulInt);
//
// Unregister the interrupt handler.
//
IntUnregister(ulInt);
}
//*****************************************************************************
//
//! Unregisters an interrupt handler for the synchronous serial interface.
//!
//! \param ui32Base specifies the SSI module base address.
//!
//! This function clears the handler to be called when an SSI interrupt
//! occurs. This function also masks off the interrupt in the interrupt
//! controller so that the interrupt handler no longer is called.
//!
//! \sa IntRegister() for important information about registering interrupt
//! handlers.
//!
//! \return None.
//
//*****************************************************************************
void
SSIIntUnregister(uint32_t ui32Base)
{
uint32_t ui32Int;
//
// Check the arguments.
//
ASSERT(SSIBaseValid(ui32Base));
//
// Determine the interrupt number based on the SSI port.
//
ui32Int = SSIIntNumberGet(ui32Base);
ASSERT(ui32Int != 0);
//
// Disable the interrupt.
//
IntDisable(ui32Int);
//
// Unregister the interrupt handler.
//
IntUnregister(ui32Int);
}
