Collaboration diagram for Channel Transaction Functions:

Functions
IFX_INLINE void	IfxDma_clearChannelTransactionRequestLost (Ifx_DMA *dma, IfxDma_ChannelId channelId)
	Clear the channel transaction request lost flag status. More...

IFX_INLINE void	IfxDma_disableChannelTransaction (Ifx_DMA *dma, IfxDma_ChannelId channelId)
	Disable a DMA channel hardware transaction request. More...

IFX_INLINE void	IfxDma_disableChannelTransactionLostError (Ifx_DMA *dma, IfxDma_ChannelId channelId)
	Disable the generation of a channel transaction lost error interrupt. More...

IFX_INLINE void	IfxDma_enableChannelTransaction (Ifx_DMA *dma, IfxDma_ChannelId channelId)
	Enable a DMA channel hardware transaction request. More...

IFX_INLINE void	IfxDma_enableChannelTransactionLostError (Ifx_DMA *dma, IfxDma_ChannelId channelId)
	Enable the generation of a channel transaction lost error interrupt. More...

IFX_INLINE boolean	IfxDma_getChannelTransactionRequestLost (Ifx_DMA *dma, IfxDma_ChannelId channelId)
	Check the channel transaction request lost flag status. More...

IFX_INLINE IfxDma_ChannelIncrementCircular	IfxDma_getCircularRangeCode (uint16 range)
	Converts DMA circular range to circular code. More...

IFX_INLINE boolean	IfxDma_isChannelTransactionEnabled (Ifx_DMA *dma, IfxDma_ChannelId channelId)
	Return the hardware transaction request status of a DMA channel. More...

IFX_INLINE boolean	IfxDma_isChannelTransactionPending (Ifx_DMA *dma, IfxDma_ChannelId channelId)
	Return the status of a DMA channel (transaction pending) More...

IFX_INLINE void	IfxDma_setSleepMode (Ifx_DMA *dma, IfxDma_SleepMode mode)
	Sets the sensitivity of the module to sleep signal. More...

IFX_INLINE void	IfxDma_startChannelTransaction (Ifx_DMA *dma, IfxDma_ChannelId channelId)
	Request a DMA channel transaction. More...

Detailed Description

Function Documentation

IFX_INLINE void IfxDma_clearChannelTransactionRequestLost	(	Ifx_DMA *	dma,
		IfxDma_ChannelId	channelId
	)

Clear the channel transaction request lost flag status.

Parameters

dma	pointer to DMA module
channelId	DMA channel number

Returns: None

// Clear the channel transaction request lost flag status

IfxDma_clearChannelTransactionRequestLost(chn[0].dma, chn[0].channelId);

Definition at line 1159 of file IfxDma.h.

IFX_INLINE void IfxDma_disableChannelTransaction	(	Ifx_DMA *	dma,
		IfxDma_ChannelId	channelId
	)

Disable a DMA channel hardware transaction request.

Parameters

dma	pointer to DMA module
channelId	DMA channel number

Returns: None

A coding example can be found in IfxDma_enableChannelTransaction

Definition at line 1184 of file IfxDma.h.

Referenced by IfxQspi_SpiMaster_isrDmaTransmit().

IFX_INLINE void IfxDma_disableChannelTransactionLostError	(	Ifx_DMA *	dma,
		IfxDma_ChannelId	channelId
	)

Disable the generation of a channel transaction lost error interrupt.

Parameters

dma	pointer to DMA module
channelId	DMA channel number

Returns: None

// Disable the transaction request lost interrupt for given channel

IfxDma_disableChannelTransactionLostError(chn[0].dma, chn[0].channelId);

Definition at line 1190 of file IfxDma.h.

IFX_INLINE void IfxDma_enableChannelTransaction	(	Ifx_DMA *	dma,
		IfxDma_ChannelId	channelId
	)

Enable a DMA channel hardware transaction request.

Parameters

dma	pointer to DMA module
channelId	DMA channel number

Returns: None

unsigned *src = (unsigned *)((unsigned)&SRC_DMACH0.U + 4*NUM_CHANNELS);
for(int chn=0; chn<NUM_CHANNELS; ++chn, ++src) {
    IfxSrc_setRequest(src);
}
// Do not restrict the hardware triggering to only one transaction
IfxDma_setChannelContinuousMode(chn[0].dma, chn[0].channelId);
IfxDma_setChannelContinuousMode(chn[1].dma, chn[1].channelId);
IfxDma_setChannelContinuousMode(chn[2].dma, chn[2].channelId);
// Check for end of transaction
while(!(IfxDma_getAndClearChannelInterrupt(chn[0].dma, chn[0].channelId)));
// Enable the hardware trigger for channel 3
IfxDma_enableChannelTransaction(chn[3].dma, chn[3].channelId);
// Disable the hardware trigger for channel 2
IfxDma_disableChannelTransaction(chn[2].dma, chn[2].channelId);
// Hardware triggers for second time
unsigned *SRc = (unsigned *)((unsigned)&SRC_DMACH0.U + 4*NUM_CHANNELS);
for(int chn=0; chn<NUM_CHANNELS; ++chn, ++src) {
    IfxSrc_setRequest(src);
}
// Restrict the hardware triggering to only one transaction
IfxDma_setChannelSingleMode(chn[0].dma, chn[0].channelId);
IfxDma_setChannelSingleMode(chn[1].dma, chn[1].channelId);

Definition at line 1228 of file IfxDma.h.

IFX_INLINE void IfxDma_enableChannelTransactionLostError	(	Ifx_DMA *	dma,
		IfxDma_ChannelId	channelId
	)

Enable the generation of a channel transaction lost error interrupt.

Parameters

dma	pointer to DMA module
channelId	DMA channel number

Returns: None

// Enable the transaction request lost interrupt for given channel

IfxDma_enableChannelTransactionLostError(chn[0].dma, chn[0].channelId);

Definition at line 1234 of file IfxDma.h.

IFX_INLINE boolean IfxDma_getChannelTransactionRequestLost	(	Ifx_DMA *	dma,
		IfxDma_ChannelId	channelId
	)

Check the channel transaction request lost flag status.

Parameters

dma	pointer to DMA module
channelId	DMA channel number

Returns: TRUE if the TRL is set FALSE if the TRL is not set

boolean trlFlag;
// Check whether the channel transaction request lost flag is set or not
trlFlag = IfxDma_getChannelTransactionRequestLost(chn[0].dma, chn[0].channelId));

Definition at line 1360 of file IfxDma.h.

IFX_INLINE IfxDma_ChannelIncrementCircular IfxDma_getCircularRangeCode ( uint16 range)

Converts DMA circular range to circular code.

Parameters

range DMA circular range

Returns: DMA circular code

Definition at line 1372 of file IfxDma.h.

IFX_INLINE boolean IfxDma_isChannelTransactionEnabled	(	Ifx_DMA *	dma,
		IfxDma_ChannelId	channelId
	)

Return the hardware transaction request status of a DMA channel.

Parameters

dma	pointer to DMA module
channelId	DMA channel number

Returns: TRUE if the hardware transaction request is enabled FALSE if the hardware transaction request is disabled

A coding example can be found in IfxDma_isChannelReset

Definition at line 1431 of file IfxDma.h.

IFX_INLINE boolean IfxDma_isChannelTransactionPending	(	Ifx_DMA *	dma,
		IfxDma_ChannelId	channelId
	)

Return the status of a DMA channel (transaction pending)

Parameters

dma	pointer to DMA module
channelId	DMA channel number

Returns: TRUE if a transaction request for the given channel is pending

// check for the channel request pending with the channel
if (IfxDma_isChannelTransactionPending(chn[0].dma, chn[0].channelId) == TRUE) {
    // There is channel request pending for channel 0
    result |= 0;
}

Definition at line 1437 of file IfxDma.h.

Referenced by IfxDma_Dma_isChannelTransactionPending().

IFX_INLINE void IfxDma_setSleepMode	(	Ifx_DMA *	dma,
		IfxDma_SleepMode	mode
	)

Sets the sensitivity of the module to sleep signal.

Parameters

dma	pointer to DMA registers
mode	mode selection (enable/disable)

Returns: None

Definition at line 1549 of file IfxDma.h.

IFX_INLINE void IfxDma_startChannelTransaction	(	Ifx_DMA *	dma,
		IfxDma_ChannelId	channelId
	)

Request a DMA channel transaction.

Parameters

dma	pointer to DMA module
channelId	DMA channel number

Returns: None

A coding example can be found in IfxDma_Dma_startChannelTransaction

Definition at line 1558 of file IfxDma.h.

Referenced by IfxDma_Dma_startChannelTransaction().