Device Interrupts

Macros
#define	DEVICE_INTERRUPT_MAXIMUM   (8)
	Fixed interrupt sources.

Typedefs
typedef enum _DeviceInterruptTrigger	DeviceInterruptTrigger
	DeviceSetupIsr interrupt trigger.
typedef void	DeviceIsrFn()
	ISR function.

Enumerations
enum	_DeviceInterruptTrigger {   InterruptTriggerNone , InterruptTriggerSensitive , InterruptTriggerRisingEdge , InterruptTriggerFallingEdge ,   InterruptTriggerBothEdge }
	DeviceSetupIsr interrupt trigger. More...

Functions
BOOL	DeviceIsValid (int irq)
	Verify availability and support for device. (Only verifies IRQ is valid)
BOOL	DeviceSetupIsr (int irq, DeviceInterruptTrigger trigger, DeviceIsrFnPtr isrPtr)
	Set interrupt controller and attach function to interrupt.
void	DeviceAckInterrupt (int irq)
	Acknowledge interrupt.
void	DeviceDisableInterrupt (int irq)
	Disable interrupt.
void	DeviceEnableInterrupt (int irq)
	Enable interrupt.
OS_SEM *	DeviceGetQspiSem (void)
	Acquire QSPI semaphore for sharing access to SPI devices.
OS_SEM *	DeviceGetI2cSem (void)
	Acquire I2C semaphore for sharing access to I2C devices.

Detailed Description

#include< device.h>

Enumeration Type Documentation

_DeviceInterruptTrigger

enum _DeviceInterruptTrigger

#include <device.h>

DeviceSetupIsr interrupt trigger.

Enumerator
InterruptTriggerNone	No interrupt level.
InterruptTriggerSensitive	Trigger-sensitive interrupt.
InterruptTriggerRisingEdge	Rising edge triggered interrupt.
InterruptTriggerFallingEdge	Falling edge triggered interrupt.
InterruptTriggerBothEdge	Both rising and falling edge triggered.

Function Documentation

DeviceAckInterrupt()

void DeviceAckInterrupt

(

int

irq

)

#include <device.h>

Acknowledge interrupt.

Parameters

irq	Fixed level interrupt source

DeviceDisableInterrupt()

void DeviceDisableInterrupt

(

int

irq

)

#include <device.h>

Disable interrupt.

Parameters

irq	Fixed level interrupt source

DeviceEnableInterrupt()

void DeviceEnableInterrupt

(

int

irq

)

#include <device.h>

Enable interrupt.

Parameters

irq	Fixed level interrupt source

DeviceGetI2cSem()

OS_SEM * DeviceGetI2cSem

(

void

)

#include <device.h>

Acquire I2C semaphore for sharing access to I2C devices.

Returns

Semaphore

Return values

NULL	for non-existent device

DeviceGetQspiSem()

OS_SEM * DeviceGetQspiSem

(

void

)

#include <device.h>

Acquire QSPI semaphore for sharing access to SPI devices.

Returns

Semaphore

Return values

NULL	for non-existent device

DeviceIsValid()

BOOL DeviceIsValid

(

int

irq

)

#include <device.h>

Verify availability and support for device. (Only verifies IRQ is valid)

Parameters

irq	Fixed level interrupt source

Return values

TRUE	Support and available on module
FALSE	Option not supported

DeviceSetupIsr()

BOOL DeviceSetupIsr	(	int	irq,
		DeviceInterruptTrigger	trigger,
		DeviceIsrFnPtr	isrPtr )

#include <device.h>

Set interrupt controller and attach function to interrupt.

Parameters

irq	Fixed level interrupt source
trigger	Triggering edge level
isrPtr	ISR function

Return values

TRUE	Set
FALSE	Not valid interrupt source