DMA_PDD_CHANNEL_CONTEXT (Windows Embedded CE 6.0)

1/6/2010

This structure provides the Direct Memory Access (DMA) channel service and is returned by the platform dependent driver (PDD) function LPAllocateChannel.

Syntax

typedef struct _DMA_PDD_CHANNEL_CONTEXT {
  LPCanArmDma lpCanArmDma;
  LPArmTransfer lpArmTransfer;
  LPTerminateTransfer lpTerminateTransfer;
  LPStartDmaTransfer lpStartDmaTransfer;
  LPPollingForTransferDone lpPollingForTransferDone;
  LPPollingTransferRemaining lpPollingTransferRemaining;
    LPCreateDmaPDDTransfer lpCreateDmaPDDTransfer;
  LPCreateRawDmaPDDTransfer lpCreateRawDmaPDDTransfer;
  LPFreeDmaTransfer lpFreeDmaTransfer;
}DMA_PDD_CHANNEL_CONTEXT, *PDMA_PDD_CHANNEL_CONTEXT;

Members

• lpCanArmDma
  Pointer to a LPCanArmDMA function.

• lpArmTransfer
  Pointer to a LPArmTransfer function.

• lpTerminateTransfer
  Pointer to a LPTerminateTransfer function.

• lpStartDmaTransfer
  Pointer to a LPStartDmaTransfer function.

• lpPollingForTransferDone
  Pointer to a LPPollingForTransferDone function.

• lpPollingTransferRemaining
  Pointer to a LPPollingTransferRemaining function.

• lpCreateDmaPDDTransfer
  Pointer to a LPCreateDmaPDDTransfer function.

• lpCreateRawDmaPDDTransfer
  Pointer to a LPCreateRawDmaPDDTransfer function.

• lpFreeDmaTransfer
  Pointer to a LPFreeDmaTransfer function.

Requirements

Header	dmamif.h
Windows Embedded CE	Windows Embedded CE 6.0 and later

See Also

Reference

Direct Memory Access Abstraction PDD Structures