Content-type: text/html Man page of ddi_dma_htoc

ddi_dma_htoc

Section: Kernel Functions for Drivers (9F)
Updated: 16 Jan 2006
Index Return to Main Contents
 

NAME

ddi_dma_htoc - convert a DMA handle to a DMA address cookie  

SYNOPSIS

#include <sys/conf.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>

int ddi_dma_htoc(ddi_dma_handle_t handle, off_t off, ddi_dma_cookie_t *cookiep);  

INTERFACE LEVEL

This interface is obsolete. ddi_dma_addr_bind_handle(9F) or ddi_dma_buf_bind_handle(9F) should be used instead.  

PARAMETERS

handle The handle filled in by a call to ddi_dma_setup(9F).

off An offset into the object that handle maps.

cookiep A pointer to a ddi_dma_cookie(9S) structure.

 

DESCRIPTION

The ddi_dma_htoc() function takes a DMA handle (established by ddi_dma_setup(9F)), and fills in the cookie pointed to by cookiep with the appropriate address, length, and bus type to be used to program the DMA engine.  

RETURN VALUES

The ddi_dma_htoc() function returns:

DDI_SUCCESS Successfully filled in the cookie pointed to by cookiep.

DDI_FAILURE Failed to successfully fill in the cookie.

 

CONTEXT

The ddi_dma_htoc() function can be called from user, interrupt, or kernel context.  

ATTRIBUTES

See attributes(5) for a description of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
Stability LevelObsolete

 

SEE ALSO

attributes(5), ddi_dma_addr_bind_handle(9F), ddi_dma_addr_setup(9F), ddi_dma_buf_bind_handle(9F), ddi_dma_buf_setup(9F), ddi_dma_setup(9F), ddi_dma_sync(9F), ddi_dma_cookie(9S)

Writing Device Drivers


 

Index

NAME
SYNOPSIS
INTERFACE LEVEL
PARAMETERS
DESCRIPTION
RETURN VALUES
CONTEXT
ATTRIBUTES
SEE ALSO

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Time: 02:39:44 GMT, October 02, 2010