PSDK QNX API Guide
udma_utils.h File Reference

UDMA utility API to make TR, get TR descriptor memory requirement. More...

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UDMA TR type

Various UDMA TR type supported

#define UDMA_TR_TYPE_0   (CSL_UDMAP_TR_FLAGS_TYPE_1D_DATA_MOVE)
 
#define UDMA_TR_TYPE_1   (CSL_UDMAP_TR_FLAGS_TYPE_2D_DATA_MOVE)
 
#define UDMA_TR_TYPE_2   (CSL_UDMAP_TR_FLAGS_TYPE_3D_DATA_MOVE)
 
#define UDMA_TR_TYPE_3   (CSL_UDMAP_TR_FLAGS_TYPE_4D_DATA_MOVE)
 
#define UDMA_TR_TYPE_4   (CSL_UDMAP_TR_FLAGS_TYPE_4D_DATA_MOVE_FORMATTING)
 
#define UDMA_TR_TYPE_5   (CSL_UDMAP_TR_FLAGS_TYPE_4D_CACHE_WARM)
 
#define UDMA_TR_TYPE_8   (CSL_UDMAP_TR_FLAGS_TYPE_4D_BLOCK_MOVE)
 
#define UDMA_TR_TYPE_9   (CSL_UDMAP_TR_FLAGS_TYPE_4D_BLOCK_MOVE_REPACKING)
 
#define UDMA_TR_TYPE_10   (CSL_UDMAP_TR_FLAGS_TYPE_2D_BLOCK_MOVE)
 
#define UDMA_TR_TYPE_11   (CSL_UDMAP_TR_FLAGS_TYPE_2D_BLOCK_MOVE_REPACKING)
 
#define UDMA_TR_TYPE_15   (CSL_UDMAP_TR_FLAGS_TYPE_4D_BLOCK_MOVE_REPACKING_INDIRECTION)
 
uint32_t UdmaUtils_getRingMemSize (uint8_t mode, uint32_t elemCnt, uint8_t elemSize)
 UDMA get ring size utility API. More...
 
static void UdmaUtils_makeTrpd (void *pTrpd, uint32_t trType, uint32_t trCnt, uint32_t cqRingNum)
 UDMA utility API to make TRPD. Other TRPD make APIs should be called only after this API. More...
 
uint32_t UdmaUtils_getTrSizeEncoded (uint32_t trType)
 Returns the size of TR (encoded) based on the type. More...
 
uint32_t UdmaUtils_getTrSizeBytes (uint32_t trType)
 Returns the size of TR in bytes based on the type. More...
 

Detailed Description

UDMA utility API to make TR, get TR descriptor memory requirement.