Adi_Dma_Stream_Handle; Data Structures; Adi_Dma_2D_Transfer - Analog Devices VisualDSP++ 5.0 Service Manual

ADI_DMA_DESCRIPTOR_ARRAY
} ADI_DMA_DESCRIPTOR_UNION;
typedef ADI_DMA_DESCRIPTOR_UNION

ADI_DMA_STREAM_HANDLE

The
ADI_DMA_STREAM_HANDLE
DMA manager. When passed to the
handle uniquely identifies the memory stream onto which the DMA man-
ager operates. The DMA manager returns this handle to the application
when a DMA memory stream is opened. All other memory stream func-
tions require this parameter to be passed.

Data Structures

The structures that define each type of descriptor and the DMA
configuration control register are available in the public
file. The field names follow the convention used in the Hardware Reference
for the appropriate processor.

ADI_DMA_2D_TRANSFER

The
ADI_DMA_2D_TRANSFER
source or destination component of a two-dimensional memory copy.
typedef struct ADI_DMA_2D_TRANSFER {
void
u16
s16
u16
s16
} ADI_DMA_2D_TRANSFER;
VisualDSP++ 5.0 Device Drivers and System
Services Manual for Blackfin Processors
Array;
*ADI_DMA_DESCRIPTOR_HANDLE;
data type identifies a memory stream to the
adi_dma_MemoryXXX
data structure defines the characteristics of the
*StartAddress;
XCount;
XModify;
YCount;
YModify;
DMA Manager
functions, the
header
adi_dma.h
6-55