lib_at91sam9260.h

This software package contains the USB framework core developped by ATMEL, as well as a Mass stora

	return oldHandler;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_AIC_EnableIt
//* \brief Enable corresponding IT number
//*----------------------------------------------------------------------------
__inline void AT91F_AIC_EnableIt (
	AT91PS_AIC pAic,      // \arg pointer to the AIC registers
	unsigned int irq_id ) // \arg interrupt number to initialize
{
    //* Enable the interrupt on the interrupt controller
    pAic->AIC_IECR = 0x1 << irq_id ;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_AIC_DisableIt
//* \brief Disable corresponding IT number
//*----------------------------------------------------------------------------
__inline void AT91F_AIC_DisableIt (
	AT91PS_AIC pAic,      // \arg pointer to the AIC registers
	unsigned int irq_id ) // \arg interrupt number to initialize
{
    unsigned int mask = 0x1 << irq_id;
    //* Disable the interrupt on the interrupt controller
    pAic->AIC_IDCR = mask ;
    //* Clear the interrupt on the Interrupt Controller ( if one is pending )
    pAic->AIC_ICCR = mask ;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_AIC_ClearIt
//* \brief Clear corresponding IT number
//*----------------------------------------------------------------------------
__inline void AT91F_AIC_ClearIt (
	AT91PS_AIC pAic,     // \arg pointer to the AIC registers
	unsigned int irq_id) // \arg interrupt number to initialize
{
    //* Clear the interrupt on the Interrupt Controller ( if one is pending )
    pAic->AIC_ICCR = (0x1 << irq_id);
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_AIC_AcknowledgeIt
//* \brief Acknowledge corresponding IT number
//*----------------------------------------------------------------------------
__inline void AT91F_AIC_AcknowledgeIt (
	AT91PS_AIC pAic)     // \arg pointer to the AIC registers
{
    pAic->AIC_EOICR = pAic->AIC_EOICR;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_AIC_SetExceptionVector
//* \brief Configure vector handler
//*----------------------------------------------------------------------------
__inline unsigned int  AT91F_AIC_SetExceptionVector (
	unsigned int *pVector, // \arg pointer to the AIC registers
	void (*Handler) () )   // \arg Interrupt Handler
{
	unsigned int oldVector = *pVector;

	if ((unsigned int) Handler == (unsigned int) AT91C_AIC_BRANCH_OPCODE)
		*pVector = (unsigned int) AT91C_AIC_BRANCH_OPCODE;
	else
		*pVector = (((((unsigned int) Handler) - ((unsigned int) pVector) - 0x8) >> 2) & 0x00FFFFFF) | 0xEA000000;

	return oldVector;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_AIC_Trig
//* \brief Trig an IT
//*----------------------------------------------------------------------------
__inline void  AT91F_AIC_Trig (
	AT91PS_AIC pAic,     // \arg pointer to the AIC registers
	unsigned int irq_id) // \arg interrupt number
{
	pAic->AIC_ISCR = (0x1 << irq_id) ;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_AIC_IsActive
//* \brief Test if an IT is active
//*----------------------------------------------------------------------------
__inline unsigned int  AT91F_AIC_IsActive (
	AT91PS_AIC pAic,     // \arg pointer to the AIC registers
	unsigned int irq_id) // \arg Interrupt Number
{
	return (pAic->AIC_ISR & (0x1 << irq_id));
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_AIC_IsPending
//* \brief Test if an IT is pending
//*----------------------------------------------------------------------------
__inline unsigned int  AT91F_AIC_IsPending (
	AT91PS_AIC pAic,     // \arg pointer to the AIC registers
	unsigned int irq_id) // \arg Interrupt Number
{
	return (pAic->AIC_IPR & (0x1 << irq_id));
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_AIC_Open
//* \brief Set exception vectors and AIC registers to default values
//*----------------------------------------------------------------------------
__inline void AT91F_AIC_Open(
	AT91PS_AIC pAic,        // \arg pointer to the AIC registers
	void (*IrqHandler) (),  // \arg Default IRQ vector exception
	void (*FiqHandler) (),  // \arg Default FIQ vector exception
	void (*DefaultHandler)  (), // \arg Default Handler set in ISR
	void (*SpuriousHandler) (), // \arg Default Spurious Handler
	unsigned int protectMode)   // \arg Debug Control Register
{
	int i;

	// Disable all interrupts and set IVR to the default handler
	for (i = 0; i < 32; ++i) {
		AT91F_AIC_DisableIt(pAic, i);
		AT91F_AIC_ConfigureIt(pAic, i, AT91C_AIC_PRIOR_LOWEST, AT91C_AIC_SRCTYPE_INT_LEVEL_SENSITIVE, DefaultHandler);
	}

	// Set the IRQ exception vector
	AT91F_AIC_SetExceptionVector((unsigned int *) 0x18, IrqHandler);
	// Set the Fast Interrupt exception vector
	AT91F_AIC_SetExceptionVector((unsigned int *) 0x1C, FiqHandler);

	pAic->AIC_SPU = (unsigned int) SpuriousHandler;
	pAic->AIC_DCR = protectMode;
}
/* *****************************************************************************
                SOFTWARE API FOR PIO
   ***************************************************************************** */
//*----------------------------------------------------------------------------
//* \fn    AT91F_PIO_CfgPeriph
//* \brief Enable pins to be drived by peripheral
//*----------------------------------------------------------------------------
__inline void AT91F_PIO_CfgPeriph(
	AT91PS_PIO pPio,             // \arg pointer to a PIO controller
	unsigned int periphAEnable,  // \arg PERIPH A to enable
	unsigned int periphBEnable)  // \arg PERIPH B to enable

{
	pPio->PIO_ASR = periphAEnable;
	pPio->PIO_BSR = periphBEnable;
	pPio->PIO_PDR = (periphAEnable | periphBEnable); // Set in Periph mode
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PIO_CfgOutput
//* \brief Enable PIO in output mode
//*----------------------------------------------------------------------------
__inline void AT91F_PIO_CfgOutput(
	AT91PS_PIO pPio,             // \arg pointer to a PIO controller
	unsigned int pioEnable)      // \arg PIO to be enabled
{
	pPio->PIO_PER = pioEnable; // Set in PIO mode
	pPio->PIO_OER = pioEnable; // Configure in Output
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PIO_CfgInput
//* \brief Enable PIO in input mode
//*----------------------------------------------------------------------------
__inline void AT91F_PIO_CfgInput(
	AT91PS_PIO pPio,             // \arg pointer to a PIO controller
	unsigned int inputEnable)      // \arg PIO to be enabled
{
	// Disable output
	pPio->PIO_ODR  = inputEnable;
	pPio->PIO_PER  = inputEnable;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PIO_CfgOpendrain
//* \brief Configure PIO in open drain
//*----------------------------------------------------------------------------
__inline void AT91F_PIO_CfgOpendrain(
	AT91PS_PIO pPio,             // \arg pointer to a PIO controller
	unsigned int multiDrvEnable) // \arg pio to be configured in open drain
{
	// Configure the multi-drive option
	pPio->PIO_MDDR = ~multiDrvEnable;
	pPio->PIO_MDER = multiDrvEnable;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PIO_CfgPullup
//* \brief Enable pullup on PIO
//*----------------------------------------------------------------------------
__inline void AT91F_PIO_CfgPullup(
	AT91PS_PIO pPio,             // \arg pointer to a PIO controller
	unsigned int pullupEnable)   // \arg enable pullup on PIO
{
		// Connect or not Pullup
	pPio->PIO_PPUDR = ~pullupEnable;
	pPio->PIO_PPUER = pullupEnable;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PIO_CfgDirectDrive
//* \brief Enable direct drive on PIO
//*----------------------------------------------------------------------------
__inline void AT91F_PIO_CfgDirectDrive(
	AT91PS_PIO pPio,             // \arg pointer to a PIO controller
	unsigned int directDrive)    // \arg PIO to be configured with direct drive

{
	// Configure the Direct Drive
	pPio->PIO_OWDR  = ~directDrive;
	pPio->PIO_OWER  = directDrive;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PIO_CfgInputFilter
//* \brief Enable input filter on input PIO
//*----------------------------------------------------------------------------
__inline void AT91F_PIO_CfgInputFilter(
	AT91PS_PIO pPio,             // \arg pointer to a PIO controller
	unsigned int inputFilter)    // \arg PIO to be configured with input filter

{
	// Configure the Direct Drive
	pPio->PIO_IFDR  = ~inputFilter;
	pPio->PIO_IFER  = inputFilter;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PIO_GetInput
//* \brief Return PIO input value
//*----------------------------------------------------------------------------
__inline unsigned int AT91F_PIO_GetInput( // \return PIO input
	AT91PS_PIO pPio) // \arg  pointer to a PIO controller
{
	return pPio->PIO_PDSR;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PIO_IsInputSet
//* \brief Test if PIO is input flag is active
//*----------------------------------------------------------------------------
__inline int AT91F_PIO_IsInputSet(
	AT91PS_PIO pPio,   // \arg  pointer to a PIO controller
	unsigned int flag) // \arg  flag to be tested
{
	return (AT91F_PIO_GetInput(pPio) & flag);
}


//*----------------------------------------------------------------------------
//* \fn    AT91F_PIO_SetOutput
//* \brief Set to 1 output PIO
//*----------------------------------------------------------------------------
__inline void AT91F_PIO_SetOutput(
	AT91PS_PIO pPio,   // \arg  pointer to a PIO controller
	unsigned int flag) // \arg  output to be set
{
	pPio->PIO_SODR = flag;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PIO_ClearOutput
//* \brief Set to 0 output PIO
//*----------------------------------------------------------------------------
__inline void AT91F_PIO_ClearOutput(
	AT91PS_PIO pPio,   // \arg  pointer to a PIO controller
	unsigned int flag) // \arg  output to be cleared
{
	pPio->PIO_CODR = flag;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PIO_ForceOutput
//* \brief Force output when Direct drive option is enabled
//*----------------------------------------------------------------------------
__inline void AT91F_PIO_ForceOutput(
	AT91PS_PIO pPio,   // \arg  pointer to a PIO controller
	unsigned int flag) // \arg  output to be forced
{
	pPio->PIO_ODSR = flag;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PIO_Enable
//* \brief Enable PIO
//*----------------------------------------------------------------------------
__inline void AT91F_PIO_Enable(
        AT91PS_PIO pPio,   // \arg  pointer to a PIO controller
        unsigned int flag) // \arg  pio to be enabled 
{
        pPio->PIO_PER = flag;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PIO_Disable
//* \brief Disable PIO
//*----------------------------------------------------------------------------
__inline void AT91F_PIO_Disable(
        AT91PS_PIO pPio,   // \arg  pointer to a PIO controller
        unsigned int flag) // \arg  pio to be disabled 
{
        pPio->PIO_PDR = flag;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PIO_GetStatus
//* \brief Return PIO Status
//*----------------------------------------------------------------------------
__inline unsigned int AT91F_PIO_GetStatus( // \return PIO Status
        AT91PS_PIO pPio) // \arg  pointer to a PIO controller
{
        return pPio->PIO_PSR;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PIO_IsSet
//* \brief Test if PIO is Set
//*----------------------------------------------------------------------------
__inline int AT91F_PIO_IsSet(
        AT91PS_PIO pPio,   // \arg  pointer to a PIO controller