125 lines
4.3 KiB
C
125 lines
4.3 KiB
C
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#ifndef _DMAPUSH_H_
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#define _DMAPUSH_H_
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/**************************** DMA Pusher *****************************\
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* *
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* Module: DMAPUSH.H *
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* Control method implementation. *
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* *
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*****************************************************************************
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* *
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* History: *
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* Bruce Thompson (brucet) 02/22/96 - wrote it. *
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* *
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\***************************************************************************/
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#include "dma.h"
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//---------------------------------------------------------------------------
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//
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// Defines.
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//
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//---------------------------------------------------------------------------
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//---------------------------------------------------------------------------
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//
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// Miscellaneous structure definitions.
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//
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//---------------------------------------------------------------------------
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//---------------------------------------------------------------------------
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//
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// Control object defines.
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//
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//---------------------------------------------------------------------------
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typedef struct _def_dmapush_object DMAPUSHER, *PDMAPUSHER;
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// The object which represents the state of the DMA pusher
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struct _def_dmapush_object
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{
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BUFFEROBJECT BufferObject;
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U032 CurrentBuffer;
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U032 AddressSpace;
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U032 TlbPtBase;
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U032 Offset;
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};
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//---------------------------------------------------------------------------
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//
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// Function prototypes.
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//
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//---------------------------------------------------------------------------
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// Allocate and init new DMA pusher object
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RM_STATUS dmaCreateDmaPusher
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(
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PDMAPUSHER *DmaPushObject, // Ptr to object to initialize
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U032 ChID // Channel this object will be used on
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);
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// Delete a DMA pusher object
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RM_STATUS dmaDeleteDmaPusher
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(
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PDMAPUSHER DmaPushObject // Ptr to object to delete
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);
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// Start a DMA pusher transfer
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RM_STATUS dmaPushStartXfer
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(
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PBUFFEROBJECT BuffObject, // The buffer object to use
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U032 BuffNum // The buffer to start transfer on
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);
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// Start/Continue a DMA pusher transfer
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RM_STATUS dmaPushXfer
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(
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PBUFFER pBuffer // The buffer used for transfer
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);
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// Set the DMA pusher Dma specification object
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RM_STATUS mthdSetPushBufferCtxDma
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(
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POBJECT Object, // Ptr to DMA push object for this channel
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PMETHOD Method, // Ptr to method structure
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U032 Offset, // Method offset
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V032 Data // Method data
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);
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// Set the DMA pusher notify Dma specification object
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RM_STATUS mthdSetPushBufferNotifyCtxDma
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(
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POBJECT Object, // Ptr to DMA push object for this channel
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PMETHOD Method, // Ptr to method structure
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U032 Offset, // Method offset
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V032 Data // Method data
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);
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// Set the start offset for this DMA push operation
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RM_STATUS mthdSetPushBufferStart
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(
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POBJECT Object, // Ptr to DMA push object for this channel
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PMETHOD Method, // Ptr to method structure
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U032 Offset, // Method offset
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V032 Data // Method data
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);
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// Set the length for this DMA push operation
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RM_STATUS mthdSetPushBufferLength
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(
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POBJECT Object, // Ptr to DMA push object for this channel
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PMETHOD Method, // Ptr to method structure
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U032 Offset, // Method offset
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V032 Data // Method data
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);
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// Start the DMA push operation
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RM_STATUS mthdSetPushBufferNotify
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(
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POBJECT Object, // Ptr to DMA push object for this channel
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PMETHOD Method, // Ptr to method structure
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U032 Offset, // Method offset
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V032 Data // Method data
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);
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#endif // _DMAPUSH_H_
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