lib_at91sam7s64.h

FreeRTOSV4.1.0 安裝文件 FreeRTOS 是一个源码公开的免费的嵌入式实时操作系统

//*----------------------------------------------------------------------------
__inline void AT91F_SPI_DisableIt (
	AT91PS_SPI pSPI, // pointer to a SPI controller
	unsigned int flag) // IT to be disabled
{
	//* Write to the IDR register
	pSPI->SPI_IDR = flag;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_SPI_Reset
//* \brief Reset the SPI controller
//*----------------------------------------------------------------------------
__inline void AT91F_SPI_Reset (
	AT91PS_SPI pSPI // pointer to a SPI controller
	)
{
	//* Write to the CR register
	pSPI->SPI_CR = AT91C_SPI_SWRST;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_SPI_Enable
//* \brief Enable the SPI controller
//*----------------------------------------------------------------------------
__inline void AT91F_SPI_Enable (
	AT91PS_SPI pSPI // pointer to a SPI controller
	)
{
	//* Write to the CR register
	pSPI->SPI_CR = AT91C_SPI_SPIEN;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_SPI_Disable
//* \brief Disable the SPI controller
//*----------------------------------------------------------------------------
__inline void AT91F_SPI_Disable (
	AT91PS_SPI pSPI // pointer to a SPI controller
	)
{
	//* Write to the CR register
	pSPI->SPI_CR = AT91C_SPI_SPIDIS;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_SPI_CfgMode
//* \brief Enable the SPI controller
//*----------------------------------------------------------------------------
__inline void AT91F_SPI_CfgMode (
	AT91PS_SPI pSPI, // pointer to a SPI controller
	int mode)        // mode register 
{
	//* Write to the MR register
	pSPI->SPI_MR = mode;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_SPI_CfgPCS
//* \brief Switch to the correct PCS of SPI Mode Register : Fixed Peripheral Selected
//*----------------------------------------------------------------------------
__inline void AT91F_SPI_CfgPCS (
	AT91PS_SPI pSPI, // pointer to a SPI controller
	char PCS_Device) // PCS of the Device
{	
 	//* Write to the MR register
	pSPI->SPI_MR &= 0xFFF0FFFF;
	pSPI->SPI_MR |= ( (PCS_Device<<16) & AT91C_SPI_PCS );
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_SPI_ReceiveFrame
//* \brief Return 2 if PDC has been initialized with Buffer and Next Buffer, 1 if PDC has been initializaed with Next Buffer, 0 if PDC is busy
//*----------------------------------------------------------------------------
__inline unsigned int AT91F_SPI_ReceiveFrame (
	AT91PS_SPI pSPI,
	char *pBuffer,
	unsigned int szBuffer,
	char *pNextBuffer,
	unsigned int szNextBuffer )
{
	return AT91F_PDC_ReceiveFrame(
		(AT91PS_PDC) &(pSPI->SPI_RPR),
		pBuffer,
		szBuffer,
		pNextBuffer,
		szNextBuffer);
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_SPI_SendFrame
//* \brief Return 2 if PDC has been initialized with Buffer and Next Buffer, 1 if PDC has been initializaed with Next Buffer, 0 if PDC is bSPIy
//*----------------------------------------------------------------------------
__inline unsigned int AT91F_SPI_SendFrame(
	AT91PS_SPI pSPI,
	char *pBuffer,
	unsigned int szBuffer,
	char *pNextBuffer,
	unsigned int szNextBuffer )
{
	return AT91F_PDC_SendFrame(
		(AT91PS_PDC) &(pSPI->SPI_RPR),
		pBuffer,
		szBuffer,
		pNextBuffer,
		szNextBuffer);
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_SPI_Close
//* \brief Close SPI: disable IT disable transfert, close PDC
//*----------------------------------------------------------------------------
__inline void AT91F_SPI_Close (
	AT91PS_SPI pSPI)     // \arg pointer to a SPI controller
{
    //* Reset all the Chip Select register
    pSPI->SPI_CSR[0] = 0 ;
    pSPI->SPI_CSR[1] = 0 ;
    pSPI->SPI_CSR[2] = 0 ;
    pSPI->SPI_CSR[3] = 0 ;

    //* Reset the SPI mode
    pSPI->SPI_MR = 0  ;

    //* Disable all interrupts
    pSPI->SPI_IDR = 0xFFFFFFFF ;

    //* Abort the Peripheral Data Transfers
    AT91F_PDC_Close((AT91PS_PDC) &(pSPI->SPI_RPR));

    //* Disable receiver and transmitter and stop any activity immediately
    pSPI->SPI_CR = AT91C_SPI_SPIDIS;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_SPI_PutChar
//* \brief Send a character,does not check if ready to send
//*----------------------------------------------------------------------------
__inline void AT91F_SPI_PutChar (
	AT91PS_SPI pSPI,
	unsigned int character,
             unsigned int cs_number )
{
    unsigned int value_for_cs;
    value_for_cs = (~(1 << cs_number)) & 0xF;  //Place a zero among a 4 ONEs number
    pSPI->SPI_TDR = (character & 0xFFFF) | (value_for_cs << 16);
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_SPI_GetChar
//* \brief Receive a character,does not check if a character is available
//*----------------------------------------------------------------------------
__inline int AT91F_SPI_GetChar (
	const AT91PS_SPI pSPI)
{
    return((pSPI->SPI_RDR) & 0xFFFF);
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_SPI_GetInterruptMaskStatus
//* \brief Return SPI Interrupt Mask Status
//*----------------------------------------------------------------------------
__inline unsigned int AT91F_SPI_GetInterruptMaskStatus( // \return SPI Interrupt Mask Status
        AT91PS_SPI pSpi) // \arg  pointer to a SPI controller
{
        return pSpi->SPI_IMR;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_SPI_IsInterruptMasked
//* \brief Test if SPI Interrupt is Masked 
//*----------------------------------------------------------------------------
__inline int AT91F_SPI_IsInterruptMasked(
        AT91PS_SPI pSpi,   // \arg  pointer to a SPI controller
        unsigned int flag) // \arg  flag to be tested
{
        return (AT91F_SPI_GetInterruptMaskStatus(pSpi) & flag);
}

/* *****************************************************************************
                SOFTWARE API FOR PWMC
   ***************************************************************************** */
//*----------------------------------------------------------------------------
//* \fn    AT91F_PWM_GetStatus
//* \brief Return PWM Interrupt Status
//*----------------------------------------------------------------------------
__inline unsigned int AT91F_PWMC_GetStatus( // \return PWM Interrupt Status
	AT91PS_PWMC pPWM) // pointer to a PWM controller
{
	return pPWM->PWMC_SR;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PWM_InterruptEnable
//* \brief Enable PWM Interrupt
//*----------------------------------------------------------------------------
__inline void AT91F_PWMC_InterruptEnable(
        AT91PS_PWMC pPwm,   // \arg  pointer to a PWM controller
        unsigned int flag) // \arg  PWM interrupt to be enabled
{
        pPwm->PWMC_IER = flag;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PWM_InterruptDisable
//* \brief Disable PWM Interrupt
//*----------------------------------------------------------------------------
__inline void AT91F_PWMC_InterruptDisable(
        AT91PS_PWMC pPwm,   // \arg  pointer to a PWM controller
        unsigned int flag) // \arg  PWM interrupt to be disabled
{
        pPwm->PWMC_IDR = flag;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PWM_GetInterruptMaskStatus
//* \brief Return PWM Interrupt Mask Status
//*----------------------------------------------------------------------------
__inline unsigned int AT91F_PWMC_GetInterruptMaskStatus( // \return PWM Interrupt Mask Status
        AT91PS_PWMC pPwm) // \arg  pointer to a PWM controller
{
        return pPwm->PWMC_IMR;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PWM_IsInterruptMasked
//* \brief Test if PWM Interrupt is Masked
//*----------------------------------------------------------------------------
__inline unsigned int AT91F_PWMC_IsInterruptMasked(
        AT91PS_PWMC pPWM,   // \arg  pointer to a PWM controller
        unsigned int flag) // \arg  flag to be tested
{
	return (AT91F_PWMC_GetInterruptMaskStatus(pPWM) & flag);
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PWM_IsStatusSet
//* \brief Test if PWM Interrupt is Set
//*----------------------------------------------------------------------------
__inline unsigned int AT91F_PWMC_IsStatusSet(
        AT91PS_PWMC pPWM,   // \arg  pointer to a PWM controller
        unsigned int flag) // \arg  flag to be tested
{
	return (AT91F_PWMC_GetStatus(pPWM) & flag);
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PWM_CfgChannel
//* \brief Test if PWM Interrupt is Set
//*----------------------------------------------------------------------------
__inline void AT91F_PWMC_CfgChannel(
        AT91PS_PWMC pPWM,   // \arg  pointer to a PWM controller
        unsigned int channelId, // \arg PWM channel ID
        unsigned int mode, // \arg  PWM mode
        unsigned int period, // \arg PWM period
        unsigned int duty) // \arg PWM duty cycle
{
	pPWM->PWMC_CH[channelId].PWMC_CMR = mode;
	pPWM->PWMC_CH[channelId].PWMC_CDTYR = duty;
	pPWM->PWMC_CH[channelId].PWMC_CPRDR = period;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PWM_StartChannel
//* \brief Enable channel
//*----------------------------------------------------------------------------
__inline void AT91F_PWMC_StartChannel(
        AT91PS_PWMC pPWM,   // \arg  pointer to a PWM controller
        unsigned int flag) // \arg  Channels IDs to be enabled
{
	pPWM->PWMC_ENA = flag;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PWM_StopChannel
//* \brief Disable channel
//*----------------------------------------------------------------------------
__inline void AT91F_PWMC_StopChannel(
        AT91PS_PWMC pPWM,   // \arg  pointer to a PWM controller
        unsigned int flag) // \arg  Channels IDs to be enabled
{
	pPWM->PWMC_DIS = flag;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PWM_UpdateChannel
//* \brief Update Period or Duty Cycle
//*----------------------------------------------------------------------------
__inline void AT91F_PWMC_UpdateChannel(
        AT91PS_PWMC pPWM,   // \arg  pointer to a PWM controller
        unsigned int channelId, // \arg PWM channel ID
        unsigned int update) // \arg  Channels IDs to be enabled
{
	pPWM->PWMC_CH[channelId].PWMC_CUPDR = update;
}

/* *****************************************************************************
                SOFTWARE API FOR TC
   ***************************************************************************** */
//*----------------------------------------------------------------------------
//* \fn    AT91F_TC_InterruptEnable
//* \brief Enable TC Interrupt
//*----------------------------------------------------------------------------
__inline void AT91F_TC_InterruptEnable(
        AT91PS_TC pTc,   // \arg  pointer to a TC controller
        unsigned int flag) // \arg  TC interrupt to be enabled
{
        pTc->TC_IER = flag;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_TC_InterruptDisable
//* \brief Disable TC Interrupt
//*----------------------------------------------------------------------------
__inline void AT91F_TC_InterruptDisable(
        AT91PS_TC pTc,   // \arg  pointer to a TC controller
        unsigned int flag) // \arg  TC interrupt to be disabled
{
        pTc->TC_IDR = flag;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_TC_GetInterruptMaskStatus
//* \brief Return TC Interrupt Mask Status
//*----------------------------------------------------------------------------
__inline unsigned int AT91F_TC_GetInterruptMaskStatus( // \return TC Interrupt Mask Status
        AT91PS_TC pTc) // \arg  pointer to a TC controller
{
        return pTc->TC_IMR;
}

//*----------------------------------------------------------------------------