Introduction

UDMA Channel related parameters and API.

Data Structures
struct	Udma_ChPrms
	UDMA channel open parameters. More...

struct	Udma_ChTxPrms
	UDMA TX channel parameters. More...

struct	Udma_ChRxPrms
	UDMA RX channel parameters. More...

struct	Udma_ChPdmaPrms
	UDMA PDMA channel Static TR parameters. More...

struct	Udma_ChStats
	UDMA channel statistics. More...

struct	Udma_ChObject
	Opaque UDMA channel object. More...

Macros
#define	UDMA_DMA_CH_INVALID ((uint32_t) 0xFFFF0000U)
	Macro used to specify that DMA Channel ID is invalid. Used in the API Udma_chOpen. More...

#define	UDMA_DMA_CH_ANY ((uint32_t) 0xFFFF0001U)
	Macro used to specify any available DMA Channel while requesting one. Used in the API Udma_chOpen. More...

#define	UDMA_DMA_CH_NA ((uint32_t) 0xFFFF0002U)
	Macro used to specify that the DMA Channel is not applicable for a particular mode. More...

#define	UDMA_MAPPED_GROUP_INVALID ((uint32_t) 0xFFFF0004U)
	Macro used to specify that the Mapped Channel Group is invalid. More...

#define	UDMA_DMSC_EXTENDED_CH_TYPE_BCDMA_BLK_CPY ((uint8_t) 1U)
	DMSC Extended Channel Type Flag for BCDMA Block Copy. More...

#define	UDMA_DMSC_EXTENDED_CH_TYPE_BCDMA_SPLIT_TR_TX ((uint8_t) 0U)
	DMSC Extended Channel Type Flag for BCDMA split TR TX channels. More...

UDMA Channel Flag
UDMA channel flags bit field used to form the channel type.
#define	UDMA_CH_FLAG_TX ((uint32_t) 0x0001U)
	TX channel flag. More...

#define	UDMA_CH_FLAG_RX ((uint32_t) 0x0002U)
	RX channel flag. More...

#define	UDMA_CH_FLAG_BLK_COPY ((uint32_t) 0x0004U)
	Block copy mode channel flag. More...

#define	UDMA_CH_FLAG_PDMA ((uint32_t) 0x0008U)
	PDMA channel flag. More...

#define	UDMA_CH_FLAG_PSIL ((uint32_t) 0x0010U)
	PSIL channel flag meant for periperals like Ethernet, SA2UL. More...

#define	UDMA_CH_FLAG_UTC ((uint32_t) 0x0020U)
	UTC channel flag. More...

#define	UDMA_CH_FLAG_HC ((uint32_t) 0x0040U)
	High capacity channel flag. More...

#define	UDMA_CH_FLAG_UHC ((uint32_t) 0x0080U)
	Ultra high capacity channel flag. More...

#define	UDMA_CH_FLAG_MAPPED ((uint32_t) 0x0100U)
	Mapped TX/RX channel flag. More...

UDMA Channel Type
UDMA channel type formed based on channel flags.
#define	UDMA_CH_TYPE_TR_BLK_COPY
	TR block copy type - TX/RX pair. More...

#define	UDMA_CH_TYPE_TR_BLK_COPY_HC
	High capacity TR block copy type - TX/RX pair. More...

#define	UDMA_CH_TYPE_TR_BLK_COPY_UHC
	Ultra high capacity TR block copy type - TX/RX pair. More...

#define	UDMA_CH_TYPE_TX (UDMA_CH_FLAG_TX \| UDMA_CH_FLAG_PSIL)
	TX channel type. More...

#define	UDMA_CH_TYPE_TX_HC (UDMA_CH_FLAG_TX \| UDMA_CH_FLAG_PSIL \| UDMA_CH_FLAG_HC)
	High capacity TX channel type. More...

#define	UDMA_CH_TYPE_TX_UHC (UDMA_CH_FLAG_TX \| UDMA_CH_FLAG_PSIL \| UDMA_CH_FLAG_UHC)
	Ultra high capacity TX channel type. More...

#define	UDMA_CH_TYPE_RX (UDMA_CH_FLAG_RX \| UDMA_CH_FLAG_PSIL)
	RX channel type. More...

#define	UDMA_CH_TYPE_RX_HC (UDMA_CH_FLAG_RX \| UDMA_CH_FLAG_PSIL \| UDMA_CH_FLAG_HC)
	High capacity RX channel type. More...

#define	UDMA_CH_TYPE_RX_UHC (UDMA_CH_FLAG_RX \| UDMA_CH_FLAG_PSIL \| UDMA_CH_FLAG_UHC)
	Ultra high capacity RX channel type. More...

#define	UDMA_CH_TYPE_PDMA_TX (UDMA_CH_FLAG_TX \| UDMA_CH_FLAG_PDMA)
	PDMA TX channel type. More...

#define	UDMA_CH_TYPE_PDMA_TX_HC (UDMA_CH_FLAG_TX \| UDMA_CH_FLAG_PDMA \| UDMA_CH_FLAG_HC)
	High capacity PDMA TX channel type. More...

#define	UDMA_CH_TYPE_PDMA_TX_UHC (UDMA_CH_FLAG_TX \| UDMA_CH_FLAG_PDMA \| UDMA_CH_FLAG_UHC)
	Ultra high capacity PDMA TX channel type. More...

#define	UDMA_CH_TYPE_PDMA_RX (UDMA_CH_FLAG_RX \| UDMA_CH_FLAG_PDMA)
	PDMA RX channel type. More...

#define	UDMA_CH_TYPE_PDMA_RX_HC (UDMA_CH_FLAG_RX \| UDMA_CH_FLAG_PDMA \| UDMA_CH_FLAG_HC)
	High capacity PDMA RX channel type. More...

#define	UDMA_CH_TYPE_PDMA_RX_UHC (UDMA_CH_FLAG_RX \| UDMA_CH_FLAG_PDMA \| UDMA_CH_FLAG_UHC)
	Ultra high capacity PDMA RX channel type. More...

#define	UDMA_CH_TYPE_TX_MAPPED (UDMA_CH_FLAG_TX \| UDMA_CH_FLAG_PSIL \| UDMA_CH_FLAG_MAPPED)
	Mapped TX channel. This could be different type of mapped TX channels. See Udma_MappedTxGrpSoc for differnt types of SOC specific mapped TX channels. More...

#define	UDMA_CH_TYPE_RX_MAPPED (UDMA_CH_FLAG_RX \| UDMA_CH_FLAG_PSIL \| UDMA_CH_FLAG_MAPPED)
	Mapped RX channel. This could be different type of mapped RX channels. See Udma_MappedRxGrpSoc for differnt types of SOC specific mapped RX channels. More...

#define	UDMA_CH_TYPE_UTC (UDMA_CH_FLAG_UTC)
	UTC channel. This could be. More...

UDMA PDMA element size

#define	UDMA_PDMA_ES_8BITS ((uint32_t) 0x00U)

#define	UDMA_PDMA_ES_16BITS ((uint32_t) 0x01U)

#define	UDMA_PDMA_ES_24BITS ((uint32_t) 0x02U)

#define	UDMA_PDMA_ES_32BITS ((uint32_t) 0x03U)

#define	UDMA_PDMA_ES_64BITS ((uint32_t) 0x04U)

#define	UDMA_PDMA_ES_DONTCARE ((uint32_t) 0x00U)
	Set this for MCAN element size - not applicable. More...

Functions
int32_t	Udma_chOpen (Udma_DrvHandle drvHandle, Udma_ChHandle chHandle, uint32_t chType, const Udma_ChPrms *chPrms)
	UDMA open channel. More...

int32_t	Udma_chClose (Udma_ChHandle chHandle)
	UDMA close channel. More...

int32_t	Udma_chConfigTx (Udma_ChHandle chHandle, const Udma_ChTxPrms *txPrms)
	UDMA configure TX channel. More...

int32_t	Udma_chConfigRx (Udma_ChHandle chHandle, const Udma_ChRxPrms *rxPrms)
	UDMA configure RX channel. More...

int32_t	Udma_chConfigPdma (Udma_ChHandle chHandle, const Udma_ChPdmaPrms *pdmaPrms)
	UDMA configure PDMA channel (peerChNum as part of Udma_ChPrms) paired with the UDMAP channel. More...

int32_t	Udma_chEnable (Udma_ChHandle chHandle)
	UDMA channel enable API. More...

int32_t	Udma_chDisable (Udma_ChHandle chHandle, uint32_t timeout)
	UDMA channel teardown and disable API. More...

int32_t	Udma_chPause (Udma_ChHandle chHandle)
	UDMA channel pause API. More...

int32_t	Udma_chResume (Udma_ChHandle chHandle)
	UDMA channel resume API. More...

uint32_t	Udma_chGetNum (Udma_ChHandle chHandle)
	Returns the channel number offset with in a channel type - TX, RX and External (UTC) channel types. More...

Udma_RingHandle	Udma_chGetFqRingHandle (Udma_ChHandle chHandle)
	Returns the default free ring handle of the channel. More...

Udma_RingHandle	Udma_chGetCqRingHandle (Udma_ChHandle chHandle)
	Returns the default completion ring handle of the channel. More...

Udma_RingHandle	Udma_chGetTdCqRingHandle (Udma_ChHandle chHandle)
	Returns the teardown completion ring handle of the channel. More...

uint16_t	Udma_chGetFqRingNum (Udma_ChHandle chHandle)
	Returns the default free ring number to be programmed in descriptor. More...

uint16_t	Udma_chGetCqRingNum (Udma_ChHandle chHandle)
	Returns the default completion ring number to be programmed in descriptor. More...

Udma_FlowHandle	Udma_chGetDefaultFlowHandle (Udma_ChHandle chHandle)
	Returns the default flow handle of the RX channel. More...

uint32_t	Udma_chGetTriggerEvent (Udma_ChHandle chHandle, uint32_t trigger)
	Returns the global trigger event for the channel. More...

void *	Udma_chGetSwTriggerRegister (Udma_ChHandle chHandle)
	Returns the software trigger register address for the channel. More...

int32_t	Udma_chSetSwTrigger (Udma_ChHandle chHandle, uint32_t trigger)
	Sets the software trigger register based on the trigger mode provided. More...

int32_t	Udma_chSetChaining (Udma_ChHandle triggerChHandle, Udma_ChHandle chainedChHandle, uint32_t trigger)
	Chains the trigger channel with the chained channel. More...

int32_t	Udma_chBreakChaining (Udma_ChHandle triggerChHandle, Udma_ChHandle chainedChHandle)
	Breaks the chaining by resetting the trigger channel's OES. More...

void	UdmaChPrms_init (Udma_ChPrms *chPrms, uint32_t chType)
	Udma_ChPrms structure init function. More...

void	UdmaChTxPrms_init (Udma_ChTxPrms *txPrms, uint32_t chType)
	Udma_ChTxPrms structure init function. More...

void	UdmaChRxPrms_init (Udma_ChRxPrms *rxPrms, uint32_t chType)
	Udma_ChRxPrms structure init function. More...

void	UdmaChPdmaPrms_init (Udma_ChPdmaPrms *pdmaPrms)
	Udma_ChPdmaPrms structure init function. More...

int32_t	Udma_chGetStats (Udma_ChHandle chHandle, Udma_ChStats *chStats)
	Get real-time channel statistics. More...

int32_t	Udma_getPeerData (Udma_ChHandle chHandle, uint32_t *peerData)
	Get real-time peer data which contains number of bytes written. More...

int32_t	Udma_clearPeerData (Udma_ChHandle chHandle, uint32_t peerData)
	Clear real-time peer data which contains number of bytes written. More...

Introduction

Data Structures

Macros

Functions